Add a water pattern and disable the brake sensor

Reviewed-on: #252

.gitignore

@@ -5,7 +5,7 @@ dist
 result
 *.tgz
 *.tar.gz
-file-service/*.sqlite
+*.sqlite
-file-service/*.sqlite-shm
+*.sqlite-shm
-file-service/*.sqlite-wal
+*.sqlite-wal
 file-service/var

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "rust-analyzer.showUnlinkedFileNotification": false
+}

Cargo.toml

@@ -1,24 +1,36 @@
 [workspace]
+resolver = "2"
 members = [
+    "authdb",
+    # "bike-lights/bike",
+    "bike-lights/core",
+    "bike-lights/simulator",
     "changeset",
     "config",
     "config-derive",
     "coordinates",
+    "cyberpunk",
+    "cyber-slides",
     "cyberpunk-splash",
     "dashboard",
     "emseries",
-    "error-training",
     "file-service",
+    "fitnesstrax/core",
+    "fitnesstrax/app",
     "fluent-ergonomics",
     "geo-types",
     "gm-control-panel",
     "hex-grid",
+    "icon-test",
     "ifc",
-    "kifu/core",
-    "kifu/gtk",
     "memorycache",
     "nom-training",
+    "otg/core",
+    "otg/gtk",
     "result-extended",
     "screenplay",
     "sgf",
+    "timezone-testing",
+    "tree",
+    "visions/server", "gm-dash/server", "halloween-leds"
 ]

Makefile

@@ -1,30 +0,0 @@
-
-all: test bin
-
-test: kifu-core/test-oneshot sgf/test-oneshot
-
-bin: kifu-gtk 
-
-kifu-core/dev:
-	cd kifu/core && make test
-
-kifu-core/test:
-	cd kifu/core && make test
-
-kifu-core/test-oneshot:
-	cd kifu/core && make test-oneshot
-
-kifu-gtk:
-	cd kifu/gtk && make release
-
-kifu-gtk/dev:
-	cd kifu/gtk && make dev
-
-kifu-pwa:
-	cd kifu/pwa && make release
-
-kifu-pwa/dev:
-	pushd kifu/pwa && make dev
-
-kifu-pwa/server:
-	pushd kifu/pwa && make server

authdb/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "authdb"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+name = "authdb"
+path = "src/lib.rs"
+
+[[bin]]
+name = "auth-cli"
+path = "src/bin/cli.rs"
+
+[dependencies]
+base64ct  = { version = "1", features = [ "alloc" ] }
+clap      = { version = "4", features = [ "derive" ] }
+serde     = { version = "1.0", features = ["derive"] }
+sha2      = { version = "0.10" }
+sqlx      = { version = "0.7", features = [ "runtime-tokio", "sqlite" ] }
+# sqlformat introduced a mistaken breaking change in 0.2.7
+sqlformat = { version = "=0.2.6" }
+thiserror = { version = "1" }
+tokio     = { version = "1", features = [ "full" ] }
+uuid      = { version = "0.4", features = [ "serde", "v4" ] }
+
+[dev-dependencies]
+cool_asserts = "*"

authdb/src/bin/cli.rs

@@ -1,5 +1,5 @@
+use authdb::{AuthDB, Username};
 use clap::{Parser, Subcommand};
-use file_service::{AuthDB, Username};
 use std::path::PathBuf;
 
 #[derive(Subcommand, Debug)]

authdb/src/lib.rs

@@ -0,0 +1,302 @@
+use base64ct::{Base64, Encoding};
+use serde::{Deserialize, Serialize};
+use sha2::{Digest, Sha256};
+use sqlx::{
+    sqlite::{SqlitePool, SqliteRow},
+    Row,
+};
+use std::ops::Deref;
+use std::path::PathBuf;
+use thiserror::Error;
+use uuid::Uuid;
+
+#[derive(Debug, Error)]
+pub enum AuthError {
+    #[error("authentication token is duplicated")]
+    DuplicateAuthToken,
+
+    #[error("session token is duplicated")]
+    DuplicateSessionToken,
+
+    #[error("database failed")]
+    SqlError(sqlx::Error),
+}
+
+impl From<sqlx::Error> for AuthError {
+    fn from(err: sqlx::Error) -> AuthError {
+        AuthError::SqlError(err)
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
+pub struct Username(String);
+
+impl From<String> for Username {
+    fn from(s: String) -> Self {
+        Self(s)
+    }
+}
+
+impl From<&str> for Username {
+    fn from(s: &str) -> Self {
+        Self(s.to_owned())
+    }
+}
+
+impl From<Username> for String {
+    fn from(s: Username) -> Self {
+        Self::from(&s)
+    }
+}
+
+impl From<&Username> for String {
+    fn from(s: &Username) -> Self {
+        let Username(s) = s;
+        Self::from(s)
+    }
+}
+
+impl Deref for Username {
+    type Target = String;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl sqlx::FromRow<'_, SqliteRow> for Username {
+    fn from_row(row: &SqliteRow) -> sqlx::Result<Self> {
+        let name: String = row.try_get("username")?;
+        Ok(Username::from(name))
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
+pub struct AuthToken(String);
+
+impl From<String> for AuthToken {
+    fn from(s: String) -> Self {
+        Self(s)
+    }
+}
+
+impl From<&str> for AuthToken {
+    fn from(s: &str) -> Self {
+        Self(s.to_owned())
+    }
+}
+
+impl From<AuthToken> for PathBuf {
+    fn from(s: AuthToken) -> Self {
+        Self::from(&s)
+    }
+}
+
+impl From<&AuthToken> for PathBuf {
+    fn from(s: &AuthToken) -> Self {
+        let AuthToken(s) = s;
+        Self::from(s)
+    }
+}
+
+impl Deref for AuthToken {
+    type Target = String;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
+pub struct SessionToken(String);
+
+impl From<String> for SessionToken {
+    fn from(s: String) -> Self {
+        Self(s)
+    }
+}
+
+impl From<&str> for SessionToken {
+    fn from(s: &str) -> Self {
+        Self(s.to_owned())
+    }
+}
+
+impl From<SessionToken> for PathBuf {
+    fn from(s: SessionToken) -> Self {
+        Self::from(&s)
+    }
+}
+
+impl From<&SessionToken> for PathBuf {
+    fn from(s: &SessionToken) -> Self {
+        let SessionToken(s) = s;
+        Self::from(s)
+    }
+}
+
+impl Deref for SessionToken {
+    type Target = String;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[derive(Clone)]
+pub struct AuthDB {
+    pool: SqlitePool,
+}
+
+impl AuthDB {
+    pub async fn new(path: PathBuf) -> Result<Self, sqlx::Error> {
+        let migrator = sqlx::migrate!("./migrations");
+        let pool = SqlitePool::connect(&format!("sqlite://{}", path.to_str().unwrap())).await?;
+        migrator.run(&pool).await?;
+        Ok(Self { pool })
+    }
+
+    pub async fn add_user(&self, username: Username) -> Result<AuthToken, AuthError> {
+        let mut hasher = Sha256::new();
+        hasher.update(Uuid::new_v4().hyphenated().to_string());
+        hasher.update(username.to_string());
+        let auth_token = Base64::encode_string(&hasher.finalize());
+
+        let _ = sqlx::query("INSERT INTO users (username, token) VALUES ($1, $2)")
+            .bind(username.to_string())
+            .bind(auth_token.clone())
+            .execute(&self.pool)
+            .await?;
+
+        Ok(AuthToken::from(auth_token))
+    }
+
+    pub async fn list_users(&self) -> Result<Vec<Username>, AuthError> {
+        let usernames = sqlx::query_as::<_, Username>("SELECT (username) FROM users")
+            .fetch_all(&self.pool)
+            .await?;
+
+        Ok(usernames)
+    }
+
+    pub async fn authenticate(&self, token: AuthToken) -> Result<Option<SessionToken>, AuthError> {
+        let results = sqlx::query("SELECT * FROM users WHERE token = $1")
+            .bind(token.to_string())
+            .fetch_all(&self.pool)
+            .await?;
+
+        if results.len() > 1 {
+            return Err(AuthError::DuplicateAuthToken);
+        }
+
+        if results.is_empty() {
+            return Ok(None);
+        }
+
+        let user_id: i64 = results[0].try_get("id")?;
+
+        let mut hasher = Sha256::new();
+        hasher.update(Uuid::new_v4().hyphenated().to_string());
+        hasher.update(token.to_string());
+        let session_token = Base64::encode_string(&hasher.finalize());
+
+        let _ = sqlx::query("INSERT INTO sessions (token, user_id) VALUES ($1, $2)")
+            .bind(session_token.clone())
+            .bind(user_id)
+            .execute(&self.pool)
+            .await?;
+
+        Ok(Some(SessionToken::from(session_token)))
+    }
+
+    pub async fn validate_session(
+        &self,
+        token: SessionToken,
+    ) -> Result<Option<Username>, AuthError> {
+        let rows = sqlx::query(
+            "SELECT users.username FROM sessions INNER JOIN users ON sessions.user_id = users.id WHERE sessions.token = $1",
+        )
+        .bind(token.to_string())
+        .fetch_all(&self.pool)
+        .await?;
+        if rows.len() > 1 {
+            return Err(AuthError::DuplicateSessionToken);
+        }
+
+        if rows.is_empty() {
+            return Ok(None);
+        }
+
+        let username: String = rows[0].try_get("username")?;
+        Ok(Some(Username::from(username)))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use cool_asserts::assert_matches;
+    use std::collections::HashSet;
+
+    #[tokio::test]
+    async fn can_create_and_list_users() {
+        let db = AuthDB::new(PathBuf::from(":memory:"))
+            .await
+            .expect("a memory-only database will be created");
+        let _ = db
+            .add_user(Username::from("savanni"))
+            .await
+            .expect("user to be created");
+        assert_matches!(db.list_users().await, Ok(names) => {
+            let names = names.into_iter().collect::<HashSet<Username>>();
+            assert!(names.contains(&Username::from("savanni")));
+        })
+    }
+
+    #[tokio::test]
+    async fn unknown_auth_token_returns_nothing() {
+        let db = AuthDB::new(PathBuf::from(":memory:"))
+            .await
+            .expect("a memory-only database will be created");
+        let _ = db
+            .add_user(Username::from("savanni"))
+            .await
+            .expect("user to be created");
+
+        let token = AuthToken::from("0000000000");
+
+        assert_matches!(db.authenticate(token).await, Ok(None));
+    }
+
+    #[tokio::test]
+    async fn auth_token_becomes_session_token() {
+        let db = AuthDB::new(PathBuf::from(":memory:"))
+            .await
+            .expect("a memory-only database will be created");
+        let token = db
+            .add_user(Username::from("savanni"))
+            .await
+            .expect("user to be created");
+
+        assert_matches!(db.authenticate(token).await, Ok(_));
+    }
+
+    #[tokio::test]
+    async fn can_validate_session_token() {
+        let db = AuthDB::new(PathBuf::from(":memory:"))
+            .await
+            .expect("a memory-only database will be created");
+        let token = db
+            .add_user(Username::from("savanni"))
+            .await
+            .expect("user to be created");
+        let session = db
+            .authenticate(token)
+            .await
+            .expect("token authentication should succeed")
+            .expect("session token should be found");
+
+        assert_matches!(
+        db.validate_session(session).await,
+        Ok(Some(username)) => {
+            assert_eq!(username, Username::from("savanni"));
+        });
+    }
+}

bike-lights/bike/.cargo/config

@@ -0,0 +1,12 @@
+[build]
+target = "thumbv6m-none-eabi"
+
+[target.thumbv6m-none-eabi]
+rustflags = [
+    "-C", "link-arg=--nmagic",
+    "-C", "link-arg=-Tlink.x",
+    "-C", "inline-threshold=5",
+    "-C", "no-vectorize-loops",
+]
+
+runner = "elf2uf2-rs -d"

bike-lights/bike/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "bike"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+az              = { version = "1" }
+cortex-m-rt     = { version = "0.7.3" }
+cortex-m        = { version = "0.7.7" }
+embedded-alloc  = { version = "0.5.1" }
+embedded-hal    = { version = "0.2.7" }
+fixed           = { version = "1" }
+fugit           = { version = "0.3.7" }
+lights-core     = { path = "../core" }
+panic-halt      = { version = "0.2.0" }
+rp-pico         = { version = "0.8.0" }

bike-lights/bike/src/main.rs

@@ -0,0 +1,244 @@
+#![no_main]
+#![no_std]
+
+extern crate alloc;
+
+use alloc::boxed::Box;
+use az::*;
+use core::cell::RefCell;
+use cortex_m::delay::Delay;
+use embedded_alloc::Heap;
+use embedded_hal::{blocking::spi::Write, digital::v2::InputPin, digital::v2::OutputPin};
+use fixed::types::I16F16;
+use fugit::RateExtU32;
+use lights_core::{App, BodyPattern, DashboardPattern, Event, Instant, FPS, UI};
+use panic_halt as _;
+use rp_pico::{
+    entry,
+    hal::{
+        clocks::init_clocks_and_plls,
+        gpio::{FunctionSio, Pin, PinId, PullDown, PullUp, SioInput, SioOutput},
+        pac::{CorePeripherals, Peripherals},
+        spi::{Enabled, Spi, SpiDevice, ValidSpiPinout},
+        watchdog::Watchdog,
+        Clock, Sio,
+    },
+    Pins,
+};
+
+#[global_allocator]
+static HEAP: Heap = Heap::empty();
+
+const LIGHT_SCALE: I16F16 = I16F16::lit("256.0");
+const DASHBOARD_BRIGHTESS: u8 = 1;
+const BODY_BRIGHTNESS: u8 = 8;
+
+struct DebouncedButton<P: PinId> {
+    debounce: Instant,
+    pin: Pin<P, FunctionSio<SioInput>, PullUp>,
+}
+
+impl<P: PinId> DebouncedButton<P> {
+    fn new(pin: Pin<P, FunctionSio<SioInput>, PullUp>) -> Self {
+        Self {
+            debounce: Instant((0 as u32).into()),
+            pin,
+        }
+    }
+
+    fn is_low(&self, time: Instant) -> bool {
+        if time <= self.debounce {
+            return false;
+        }
+        self.pin.is_low().unwrap_or(false)
+    }
+
+    fn set_debounce(&mut self, time: Instant) {
+        self.debounce = time + Instant((250 as u32).into());
+    }
+}
+
+struct BikeUI<
+    D: SpiDevice,
+    P: ValidSpiPinout<D>,
+    LeftId: PinId,
+    RightId: PinId,
+    PreviousId: PinId,
+    NextId: PinId,
+    BrakeId: PinId,
+> {
+    spi: RefCell<Spi<Enabled, D, P, 8>>,
+    left_blinker_button: DebouncedButton<LeftId>,
+    right_blinker_button: DebouncedButton<RightId>,
+    previous_animation_button: DebouncedButton<PreviousId>,
+    next_animation_button: DebouncedButton<NextId>,
+    brake_sensor: Pin<BrakeId, FunctionSio<SioInput>, PullUp>,
+
+    brake_enabled: bool,
+}
+
+impl<
+        D: SpiDevice,
+        P: ValidSpiPinout<D>,
+        LeftId: PinId,
+        RightId: PinId,
+        PreviousId: PinId,
+        NextId: PinId,
+        BrakeId: PinId,
+    > BikeUI<D, P, LeftId, RightId, PreviousId, NextId, BrakeId>
+{
+    fn new(
+        spi: Spi<Enabled, D, P, 8>,
+        left_blinker_button: Pin<LeftId, FunctionSio<SioInput>, PullUp>,
+        right_blinker_button: Pin<RightId, FunctionSio<SioInput>, PullUp>,
+        previous_animation_button: Pin<PreviousId, FunctionSio<SioInput>, PullUp>,
+        next_animation_button: Pin<NextId, FunctionSio<SioInput>, PullUp>,
+        brake_sensor: Pin<BrakeId, FunctionSio<SioInput>, PullUp>,
+    ) -> Self {
+        Self {
+            spi: RefCell::new(spi),
+            left_blinker_button: DebouncedButton::new(left_blinker_button),
+            right_blinker_button: DebouncedButton::new(right_blinker_button),
+            previous_animation_button: DebouncedButton::new(previous_animation_button),
+            next_animation_button: DebouncedButton::new(next_animation_button),
+            brake_sensor,
+
+            brake_enabled: false,
+        }
+    }
+}
+
+impl<
+        D: SpiDevice,
+        P: ValidSpiPinout<D>,
+        LeftId: PinId,
+        RightId: PinId,
+        PreviousId: PinId,
+        NextId: PinId,
+        BrakeId: PinId,
+    > UI for BikeUI<D, P, LeftId, RightId, PreviousId, NextId, BrakeId>
+{
+    fn check_event(&mut self, current_time: Instant) -> Option<Event> {
+        /*
+        if self.brake_sensor.is_high().unwrap_or(true) && !self.brake_enabled {
+            self.brake_enabled = true;
+            Some(Event::Brake)
+        } else if self.brake_sensor.is_low().unwrap_or(false) && self.brake_enabled {
+            self.brake_enabled = false;
+            Some(Event::BrakeRelease)
+        } else if self.left_blinker_button.is_low(current_time) {
+        */
+        if self.left_blinker_button.is_low(current_time) {
+            self.left_blinker_button.set_debounce(current_time);
+            Some(Event::LeftBlinker)
+        } else if self.right_blinker_button.is_low(current_time) {
+            self.right_blinker_button.set_debounce(current_time);
+            Some(Event::RightBlinker)
+        } else if self.previous_animation_button.is_low(current_time) {
+            self.previous_animation_button.set_debounce(current_time);
+            Some(Event::PreviousPattern)
+        } else if self.next_animation_button.is_low(current_time) {
+            self.next_animation_button.set_debounce(current_time);
+            Some(Event::NextPattern)
+        } else {
+            None
+        }
+    }
+
+    fn update_lights(&self, dashboard_lights: DashboardPattern, body_lights: BodyPattern) {
+        let mut lights: [u8; 260] = [0; 260];
+        lights[256] = 0xff;
+        lights[257] = 0xff;
+        lights[258] = 0xff;
+        lights[259] = 0xff;
+        for (idx, rgb) in dashboard_lights.iter().enumerate() {
+            lights[(idx + 1) * 4 + 0] = 0xe0 + DASHBOARD_BRIGHTESS;
+            lights[(idx + 1) * 4 + 1] = (I16F16::from(rgb.r) * LIGHT_SCALE).saturating_as();
+            lights[(idx + 1) * 4 + 2] = (I16F16::from(rgb.b) * LIGHT_SCALE).saturating_as();
+            lights[(idx + 1) * 4 + 3] = (I16F16::from(rgb.g) * LIGHT_SCALE).saturating_as();
+        }
+        for (idx, rgb) in body_lights.iter().enumerate() {
+            lights[(idx + 4) * 4 + 0] = 0xe0 + BODY_BRIGHTNESS;
+            lights[(idx + 4) * 4 + 1] = (I16F16::from(rgb.b) * LIGHT_SCALE).saturating_as();
+            lights[(idx + 4) * 4 + 2] = (I16F16::from(rgb.g) * LIGHT_SCALE).saturating_as();
+            lights[(idx + 4) * 4 + 3] = (I16F16::from(rgb.r) * LIGHT_SCALE).saturating_as();
+        }
+        let mut spi = self.spi.borrow_mut();
+        spi.write(lights.as_slice());
+    }
+}
+
+#[entry]
+fn main() -> ! {
+    {
+        use core::mem::MaybeUninit;
+        const HEAP_SIZE: usize = 8096;
+        static mut HEAP_MEM: [MaybeUninit<u8>; HEAP_SIZE] = [MaybeUninit::uninit(); HEAP_SIZE];
+        unsafe { HEAP.init(HEAP_MEM.as_ptr() as usize, HEAP_SIZE) }
+    }
+
+    let mut pac = Peripherals::take().unwrap();
+    let core = CorePeripherals::take().unwrap();
+    let sio = Sio::new(pac.SIO);
+    let mut watchdog = Watchdog::new(pac.WATCHDOG);
+
+    let pins = Pins::new(
+        pac.IO_BANK0,
+        pac.PADS_BANK0,
+        sio.gpio_bank0,
+        &mut pac.RESETS,
+    );
+
+    let clocks = init_clocks_and_plls(
+        12_000_000u32,
+        pac.XOSC,
+        pac.CLOCKS,
+        pac.PLL_SYS,
+        pac.PLL_USB,
+        &mut pac.RESETS,
+        &mut watchdog,
+    )
+    .ok()
+    .unwrap();
+
+    let mut delay = Delay::new(core.SYST, clocks.system_clock.freq().to_Hz());
+    let mut spi_clk = pins.gpio10.into_function();
+    let mut spi_sdo = pins.gpio11.into_function();
+    let spi = Spi::<_, _, _, 8>::new(pac.SPI1, (spi_sdo, spi_clk));
+    let mut spi = spi.init(
+        &mut pac.RESETS,
+        clocks.peripheral_clock.freq(),
+        1_u32.MHz(),
+        embedded_hal::spi::MODE_1,
+    );
+
+    let left_blinker_button = pins.gpio16.into_pull_up_input();
+    let right_blinker_button = pins.gpio17.into_pull_up_input();
+    let previous_animation_button = pins.gpio27.into_pull_up_input();
+    let next_animation_button = pins.gpio26.into_pull_up_input();
+    let brake_sensor = pins.gpio18.into_pull_up_input();
+
+    let mut led_pin = pins.led.into_push_pull_output();
+
+    let ui = BikeUI::new(
+        spi,
+        left_blinker_button,
+        right_blinker_button,
+        previous_animation_button,
+        next_animation_button,
+        brake_sensor,
+    );
+
+    let mut app = App::new(Box::new(ui));
+
+    led_pin.set_high();
+
+    let mut time = Instant::default();
+    let delay_ms = 1000 / (FPS as u32);
+    loop {
+        app.tick(time);
+
+        delay.delay_ms(delay_ms);
+        time = time + Instant(delay_ms.into());
+    }
+}

bike-lights/case/battery_enclosure.scad

@@ -0,0 +1,158 @@
+$fn = 50;
+threshold = 0.1;
+half_threshold = threshold / 2;
+bevel = 0.5;
+
+wire_radius = 1;
+
+wall_thickness = 2;
+cutout_threshold = 1;
+
+battery_length = 71;
+battery_width = 18.75;
+
+cell_holder_length = battery_length + wall_thickness * 2;
+cell_holder_width = battery_width + wall_thickness * 2;
+cell_holder_height = battery_width + wall_thickness;
+
+battery_contact_thickness = .6;
+// battery_contact_thickness = 1;
+battery_contact_width = 11;
+battery_contact_length = 12.8;
+battery_contact_spring_height = 10.5;
+battery_contact_flange_height = 1.9;
+
+converter_width = 11.25;
+converter_length = 22.25;
+converter_height = 5;
+
+
+include <./common.scad>;
+
+// box(20, 10, 10);
+// color("blue", 0.5) cube([10, 20, 10], center = true);
+
+module cell_cradle(width, height) {
+    difference() {
+        translate([0, 0, -height / 2]) cube([width,
+              wall_thickness,
+              height],
+             center = true);
+        color("red", 1) translate([0, 0, 0])
+            rotate([90, 0, 0])
+            cylinder(h = wall_thickness + cutout_threshold,
+                      r = width / 2,
+                      center = true);
+    }
+}
+
+module cell_box() {
+    union() {
+        channel(cell_holder_length, cell_holder_width, cell_holder_height);
+        translate([0, -battery_length / 6, wall_thickness]) cell_cradle(cell_holder_width, cell_holder_height / 2);
+        translate([0, battery_length / 6, wall_thickness]) cell_cradle(cell_holder_width, cell_holder_height / 2);
+    }
+}
+
+module contact_box() {
+    contact_thickness = battery_contact_flange_height * .75;
+    cutout_width = battery_contact_width * .8;
+    // box_thickness = contact_thickness_ + wall_thickness * 2;
+    // box_height = width + wall_thickness;
+
+    difference() {
+        box(wall_thickness * 2 + contact_thickness, cell_holder_width, cell_holder_height);
+        translate([0, contact_thickness, wall_thickness * 2])
+            cube([battery_contact_width,
+                  wall_thickness * 2,
+                  battery_contact_length + threshold],
+                 center = true);
+
+        color("red", 1) translate([0,
+                   -(wall_thickness + contact_thickness + threshold) / 2,
+                   cell_holder_height / 2])
+                   cube([5, wall_thickness + threshold * 2, cell_holder_height], center = true);
+
+        translate([0,
+                   -(wall_thickness + contact_thickness + threshold) / 2 - wire_radius,
+                   0])
+            rotate([0, 90, 0])
+            cylinder(h = cell_holder_width, r = wire_radius, center = true);
+
+        color("green", 1) translate([-cell_holder_width / 2, 0, cell_holder_height / 2])
+            rotate([0, 90, 0])
+            cylinder(h = 5, r = contact_thickness / 2, center = true);
+
+        color("green", 1) translate([cell_holder_width / 2, 0, cell_holder_height / 2])
+            rotate([0, 90, 0])
+            cylinder(h = 5, r = contact_thickness / 2, center = true);
+    }
+}
+
+module battery_slot() {
+    difference() {
+        union() {
+            translate([0, -cell_holder_length / 2, 0]) contact_box();
+            translate([0, wall_thickness, 0]) cell_box();
+            translate([0, cell_holder_length / 2 + wall_thickness * 2, 0])
+                rotate([0, 0, 180])
+                contact_box();
+        }
+        translate([cell_holder_width / 2, 1, 0]) rotate([90, 0, 0]) cylinder(h = cell_holder_length + wall_thickness * 4 + battery_contact_flange_height * 2, r = wire_radius, center = true);
+        translate([-cell_holder_width / 2, 1, 0]) rotate([90, 0, 0]) cylinder(h = cell_holder_length + wall_thickness * 4 + battery_contact_flange_height * 2, r = wire_radius, center = true);
+    }
+}
+
+module converter_box() {
+    box_length = wall_thickness * 2 + converter_height;
+    box_width = cell_holder_width * 2 - wall_thickness;
+    difference() {
+        box(box_length, box_width, cell_holder_height);
+
+        translate([cell_holder_width - wire_radius, 0, 0])
+            rotate([90, 0, 0])
+            cylinder(h = box_length, r = wire_radius, center = true);
+        translate([cell_holder_width - wire_radius * 2, 0, 0])
+            rotate([0, 90, 0])
+            cylinder(h = wall_thickness + threshold, r = wire_radius, center = true);
+
+        translate([-cell_holder_width + wire_radius, 0, 0])
+            rotate([90, 0, 0])
+            cylinder(h = box_length, r = wire_radius, center = true);
+        translate([-cell_holder_width + wire_radius * 2, 0, 0])
+            rotate([0, 90, 0])
+            cylinder(h = wall_thickness + threshold, r = wire_radius, center = true);
+
+        translate([0, -box_length / 2, 0])
+            rotate([0, 90, 0])
+            cylinder(h = cell_holder_width * 2 + wall_thickness, r = wire_radius, center = true);
+
+        translate([-cell_holder_width * .75, (-box_length + wall_thickness) / 2, 0])
+            rotate([90, 0, 0])
+            cylinder(h = wall_thickness * 2, r = wire_radius, center = true);
+
+        translate([cell_holder_width * .75, (-box_length + wall_thickness) / 2, 0])
+            rotate([90, 0, 0])
+            cylinder(h = wall_thickness * 2, r = wire_radius, center = true);
+
+        color("red", 1) translate([-box_width / 4, -(converter_height + wall_thickness) / 2, cell_holder_height / 2])
+                   cube([5, wall_thickness + threshold * 2, cell_holder_height], center = true);
+        color("red", 1) translate([box_width / 4, -(converter_height + wall_thickness) / 2, cell_holder_height / 2])
+                   cube([5, wall_thickness + threshold * 2, cell_holder_height], center = true);
+    }
+}
+
+module battery_case() {
+    union() {
+        translate([-cell_holder_width / 2, 0, 0]) battery_slot();
+        translate([cell_holder_width / 2 - wall_thickness, 0, 0]) battery_slot();
+        translate([-wall_thickness / 2,
+                   cell_holder_length / 2 + wall_thickness * 2 + battery_contact_flange_height + wall_thickness * 2 + wall_thickness / 2,
+                   0])
+            converter_box();
+    }
+}
+
+
+battery_case();
+

bike-lights/case/bike-light-enclosure.scad

@@ -0,0 +1,174 @@
+width = 65;
+length = 75;
+height = 16;
+wall_thickness = 2;
+guide_thickness = 1;
+power_width = 21;
+output_width = 37.5;
+half_wall_thickness = wall_thickness / 2;
+standoff_thickness = 10;
+hole_diameter = 3;
+// The radius of a nut in mm. However, based on my measurements, I'm not actually sure I have this right. The short height of a nut is 7.86mm. Derive from there.
+nut_radius = 8.5 * cos(30) / 2;
+nut_height = 2.69; // mm
+screw_radius = 2;
+handlebar_radius = 15;
+clasp_thickness = 4;
+clasp_width = 35;
+circular_face_count = 48;
+
+module hexagon(r, h) {
+    pi = 3.1415926;
+    polyhedron(
+        points=[
+            [r, 0, 0],
+            [r * cos(60), r * sin(60), 0],
+            [r * cos(120), r * sin(120), 0],
+            [r * cos(180), r * sin(180), 0],
+            [r * cos(240), r * sin(240), 0],
+            [r * cos(300), r * sin(300), 0],
+
+            [r, 0, h],
+            [r * cos(60), r * sin(60), h],
+            [r * cos(120), r * sin(120), h],
+            [r * cos(180), r * sin(180), h],
+            [r * cos(240), r * sin(240), h],
+            [r * cos(300), r * sin(300), h],
+        ],
+        faces=[
+            [0, 1, 2, 3, 4, 5],
+            [11, 10, 9, 8, 7, 6],
+            [6, 7, 1, 0],
+            [7, 8, 2, 1],
+            [8, 9, 3, 2],
+            [9, 10, 4, 3],
+            [10, 11, 5, 4],
+            [11, 6, 0, 5],
+        ]
+    );
+}
+
+// Nut holders are blocks that have a hole drilled through them and a hexagonal-shaped cavity. The idea is to 
+module nut_holder() {
+    difference() {
+        translate([-4.5, -4.5, -2]) cube([9, 9, 4]);
+        union() {
+            translate([0, 0, -1]) hexagon(nut_radius, 2);
+            cylinder(h = 6, r = screw_radius, center = true, $fn = 24);
+        }
+    }
+}
+
+module screw_hole() {
+    union() {
+        translate([0, 0, 4]) cylinder(h = 2.1, r = screw_radius * 2, center = true, $fn = 24);
+        cylinder(h = 6, r = screw_radius, center = true, $fn = 24);
+    }
+}
+
+module base() {
+    cube([width, length, wall_thickness]);
+}
+
+module face() {
+    union() {
+        cube([width, length, wall_thickness / 2]);
+        translate([wall_thickness, wall_thickness, wall_thickness / 2]) cube([width-wall_thickness*2, length-wall_thickness*2, wall_thickness / 2]);
+        translate([4.5 + wall_thickness, 4.5 + wall_thickness, 4]) nut_holder();
+        translate([width - 4.5 - wall_thickness, 4.5 + wall_thickness, 4]) nut_holder();
+        translate([width - 4.5 - wall_thickness, length - 4.5 - wall_thickness, 4]) nut_holder();
+        translate([4.5 + wall_thickness, length - 4.5 - wall_thickness, 4]) nut_holder();
+    }
+}
+
+module wall(length) {
+    cube([length, height, wall_thickness]);
+}
+
+module power_wall() {
+    difference() {
+        wall(65);
+        translate([9, 2, -.5]) cube([power_width, height, wall_thickness + 1]);
+    }
+}
+
+module output_wall() {
+    difference() {
+        wall(65);
+        translate([9, 2, -.5]) cube([output_width, height, wall_thickness + 1]);
+    }
+}
+
+// Use hexagons as cutouts into which I can install a hex nut. This isn't quite right yet, but close.
+// hexagon(nut_radius, 1);
+
+// cube([standoff_thickness, standoff_thickness, 2]);
+
+/*
+difference() {
+    union() {
+        base();
+        rotate([90, 0, 90]) wall(75);
+        // translate([width - wall_thickness, 0, 0]) rotate([90, 0, 90]) wall(length);
+        // rotate([90, 0, 0]) power_wall();
+        // translate([0, length, 0]) rotate([90, 0, 0]) output_wall();
+        // translate([wall_thickness,
+        //            wall_thickness,
+        //            wall_thickness]) standoff();
+        // translate([width - wall_thickness - standoff_thickness,
+        //            wall_thickness,
+        //            wall_thickness]) standoff();
+        // translate([wall_thickness,
+        //            length - wall_thickness - standoff_thickness,
+        //            wall_thickness]) standoff();
+        // translate([width - wall_thickness - standoff_thickness,
+        //            length - wall_thickness - standoff_thickness,
+        //            wall_thickness]) standoff();
+    }
+    // translate([-half_wall_thickness, -wall_thickness - half_wall_thickness, height - half_wall_thickness]) cube([wall_thickness, length + wall_thickness * 2, wall_thickness]);
+    // translate([width - half_wall_thickness, -wall_thickness - half_wall_thickness, height - half_wall_thickness]) cube([wall_thickness, length + wall_thickness * 2, wall_thickness]);
+    // translate([-half_wall_thickness, -half_wall_thickness, height - half_wall_thickness]) rotate([0, 0, 270]) cube([wall_thickness, width + wall_thickness * 2, wall_thickness]);
+    // translate([-half_wall_thickness, length + half_wall_thickness, height - half_wall_thickness]) rotate([0, 0, 270]) cube([wall_thickness, width + wall_thickness * 2, wall_thickness]);
+}
+*/
+
+module box() {
+    difference() {
+        union() {
+            cube([width, length, wall_thickness * 2]);
+            translate([0, 0, wall_thickness]) rotate([90, 0, 90]) wall(length);
+            translate([width - wall_thickness, 0, wall_thickness]) rotate([90, 0, 90]) wall(length);
+            translate([0, wall_thickness, wall_thickness]) rotate([90, 0, 0]) wall(width);
+            translate([0, length, wall_thickness]) rotate([90, 0, 0]) wall(width);
+        }
+        translate([4.5 + wall_thickness, 4.5 + wall_thickness, 4]) rotate([180, 0, 0]) screw_hole();
+        translate([width - 4.5 - wall_thickness, 4.5 + wall_thickness, 4]) rotate([180, 0, 0]) screw_hole();
+        translate([width - 4.5 - wall_thickness, length - 4.5 - wall_thickness, 4]) rotate([180, 0, 0]) screw_hole();
+        translate([4.5 + wall_thickness, length - 4.5 - wall_thickness, 4]) rotate([180, 0, 0]) screw_hole();
+    }
+}
+
+module top_clasp() {
+    difference() {
+        union() {
+            cylinder(h = clasp_width, r = handlebar_radius + clasp_thickness, center = true, $fn = circular_face_count);
+            translate([0, 0, -clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, -clasp_width / 2 + 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, clasp_width / 2 - 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([-handlebar_radius-5, -10, -clasp_width / 2 + 6]) cube([6, 20, clasp_width - 12]);
+        }
+        translate([-0.5, 0, 0]) cylinder(h = clasp_width+2, r = handlebar_radius + 1, center = true, $fn = circular_face_count);
+        translate([-0.5, -handlebar_radius - 10, -clasp_width / 2 - 1]) cube([handlebar_radius + 10, handlebar_radius * 2 + 20, clasp_width + 2]);
+    }
+}
+
+module body() {
+    union() {
+        box();
+        translate([width / 2, length / 2, -5 - handlebar_radius]) rotate([0, 90, 90]) top_clasp();
+    }
+}
+
+body();
+translate([width + 10, 0, 0]) face();

bike-lights/case/clasp.scad

@@ -0,0 +1,21 @@
+handlebar_radius = 15;
+clasp_thickness = 4;
+circular_face_count = 48;
+clasp_width = 35;
+
+module top_clasp() {
+    difference() {
+        union() {
+            cylinder(h = clasp_width, r = handlebar_radius + clasp_thickness, center = true, $fn = circular_face_count);
+            translate([0, 0, -clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, -clasp_width / 2 + 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, clasp_width / 2 - 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([-handlebar_radius-5, -10, -clasp_width / 2 + 6]) cube([6, 20, clasp_width - 12]);
+        }
+        translate([-0.5, 0, 0]) cylinder(h = clasp_width+2, r = handlebar_radius + 1, center = true, $fn = circular_face_count);
+        translate([-0.5, -handlebar_radius - 10, -clasp_width / 2 - 1]) cube([handlebar_radius + 10, handlebar_radius * 2 + 20, clasp_width + 2]);
+    }
+}
+
+top_clasp();

bike-lights/case/common.scad

@@ -0,0 +1,92 @@
+
+module hexagon(r, h) {
+    cylinder(r = r, h = h, center = 2, $fn = 6);
+}
+
+module pill(length, bevel) {
+    hull() {
+        translate([0, 0, (-length / 2) + bevel]) sphere(r = bevel);
+        translate([0, 0, (length / 2) - bevel]) sphere(r = bevel);
+    }
+}
+
+module rounded_cube(dimensions, bevel = 0) {
+    x = dimensions[0];
+    y = dimensions[1];
+    z = dimensions[2];
+
+    if (bevel > 0) {
+        hull() {
+            translate([-x / 2 + bevel, -y / 2 + bevel, -z / 2 + bevel]) sphere(r = bevel);
+            translate([ x / 2 - bevel, -y / 2 + bevel, -z / 2 + bevel]) sphere(r = bevel);
+            translate([ x / 2 - bevel,  y / 2 - bevel, -z / 2 + bevel]) sphere(r = bevel);
+            translate([-x / 2 + bevel,  y / 2 - bevel, -z / 2 + bevel]) sphere(r = bevel);
+            translate([-x / 2 + bevel, -y / 2 + bevel,  z / 2 - bevel]) sphere(r = bevel);
+            translate([ x / 2 - bevel, -y / 2 + bevel,  z / 2 - bevel]) sphere(r = bevel);
+            translate([ x / 2 - bevel,  y / 2 - bevel,  z / 2 - bevel]) sphere(r = bevel);
+            translate([-x / 2 + bevel,  y / 2 - bevel,  z / 2 - bevel]) sphere(r = bevel);
+        }
+    } else {
+        cube(dimensions, center = true);
+    }
+}
+
+module box_face(dimensions, bevel = 0) {
+    x = dimensions[0];
+    y = dimensions[1];
+    z = dimensions[2];
+
+    if (bevel > 0) {
+        translate([0, 0, z / 2])
+        hull() {
+            pill(z, bevel);
+            translate([x, 0, 0])
+                pill(z, bevel);
+            translate([x, y, 0])
+                pill(z, bevel);
+            translate([0, y, 0])
+                pill(z, bevel);
+        }
+    } else {
+        cube(dimensions);
+    }
+}
+
+module channel(length, width, height, bevel) {
+    union() {
+        box_face([length, width, wall_thickness], bevel);
+
+        translate([0, wall_thickness - bevel, bevel])
+            rotate([90, 0, 0])
+            box_face([length, height, wall_thickness], bevel);
+
+        translate([0, width + bevel, bevel])
+            rotate([90, 0, 0])
+            box_face([length, height, wall_thickness], bevel);
+    }
+}
+
+module box(length, width, height, bevel = 0) {
+    union() {
+        channel(length, width, height, bevel);
+
+        translate([-bevel, 0, bevel])
+            rotate([90, 0, 0])
+            rotate([0, 90, 0])
+            box_face([width, height, wall_thickness], bevel);
+
+        translate([length - wall_thickness + bevel, 0, bevel])
+            rotate([90, 0, 0])
+            rotate([0, 90, 0])
+            box_face([width, height, wall_thickness], bevel);
+    }
+}
+
+module box_side_slider(length, width, height) {
+    difference() {
+        box_face([width - wall_thickness * 2 + 4, height, wall_thickness], bevel);
+        translate([-1, -1, 1]) cube([4-threshold, height+2, 4-threshold]);
+        color("red") translate([width - wall_thickness * 2 + 1, -1, 1]) cube([4-threshold, height+2, 4-threshold]);
+    }
+}
+

bike-lights/case/control_panel.scad

@@ -0,0 +1,210 @@
+$fn = 50;
+threshold = 0.1;
+
+board_length = 92;
+board_width = 72;
+board_height = 21.5;
+wall_thickness = 4;
+bevel = 0.5;
+
+hinge_radius = 2.5;
+
+case_width = board_width + wall_thickness * 2;
+case_length = board_length + wall_thickness * 2;
+case_height = board_height + wall_thickness;
+
+handlebar_radius = 15;
+clasp_thickness = 4;
+circular_face_count = 48;
+clasp_width = 35;
+
+include <./common.scad>;
+
+module top_clasp() {
+    difference() {
+        union() {
+            cylinder(h = clasp_width, r = handlebar_radius + clasp_thickness, center = true, $fn = circular_face_count);
+            translate([0, 0, -clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, -clasp_width / 2 + 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, clasp_width / 2]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([0, 0, clasp_width / 2 - 4]) cylinder(h = 1, r = handlebar_radius + clasp_thickness + 1, center = true, $fn = circular_face_count);
+            translate([-handlebar_radius-5, -10, -clasp_width / 2 + 6]) cube([6, 20, clasp_width - 12]);
+        }
+        translate([-0.5, 0, 0]) cylinder(h = clasp_width+2, r = handlebar_radius + 1, center = true, $fn = circular_face_count);
+        translate([-0.5, -handlebar_radius - 10, -clasp_width / 2 - 1]) cube([handlebar_radius + 10, handlebar_radius * 2 + 20, clasp_width + 2]);
+    }
+}
+
+module hinge(length) {
+    difference() {
+        union() {
+            cube([hinge_radius * 2, length, hinge_radius], center = true);
+            translate([0, 0, -1.5]) rotate([90, 0, 0]) cylinder(h = length, r = hinge_radius, center = true);
+        }
+        translate([0, threshold / 2, -1.5]) rotate([90, 0, 0]) cylinder(h = length + threshold * 2, r = 1, center = true);
+    }
+}
+
+module base_case(length, width, height, bevel = 0) {
+    difference() {
+        union() {
+            channel(length + wall_thickness / 2, width, height, bevel);
+
+            translate([-bevel, 0, bevel])
+                rotate([90, 0, 0])
+                rotate([0, 90, 0])
+                box_face([width, height, wall_thickness], bevel);
+
+            // These are the sleds at the bottom of the case that should hold the lower of the two boards down
+            color("blue") translate([0, wall_thickness - 2, wall_thickness + 4]) cube([length - 8, 4, wall_thickness / 2]);
+            color("blue") translate([wall_thickness - 2, wall_thickness - 4, wall_thickness + 4]) cube([4, width, wall_thickness / 2]);
+            color("blue") translate([length - 25, width - wall_thickness * 3 / 2, wall_thickness + 6]) cube([16, wall_thickness, wall_thickness / 2]);
+        }
+
+        // This makes an indent at the bottom to accomodate solder joins
+        translate([wall_thickness + 2, wall_thickness + 2, wall_thickness / 2]) cube([length, width - wall_thickness * 2 - 4, wall_thickness / 2 + threshold]);
+
+        // This creates a cutout that lets the power plug slide in better.
+        translate([wall_thickness, width - wall_thickness, wall_thickness]) cube([length, 2, 6]);
+
+        // These two put in the slots that should allow the fourth wall to be slotted into place.
+        color("red") translate([length - 1, wall_thickness - 2, 4]) cube([2, 2, height]);
+        color("red") translate([length - 1, width - wall_thickness, 4]) cube([2, 2, height]);
+    }
+}
+
+module main_case() {
+    hinge_length = board_length / 4;
+    hinge_y_offset = board_width + wall_thickness + hinge_radius;
+    hinge_z_offset = board_height;
+
+    difference() {
+        union() {
+            base_case(case_length,
+                case_width,
+                case_height,
+                bevel);
+
+            translate([-bevel, 0, bevel])
+                rotate([90, 0, 0])
+                rotate([0, 90, 0])
+                box_face([case_width, case_height, wall_thickness], bevel);
+
+            translate([0, -hinge_radius - bevel + threshold, hinge_z_offset + bevel])
+                rotate([90, 0, 0])
+                rotate([0, 90, 0])
+                hinge(case_length / 4);
+
+            translate([case_length - hinge_length, -hinge_radius - bevel + threshold, hinge_z_offset + bevel])
+                rotate([90, 0, 0])
+                rotate([0, 90, 0])
+                hinge(case_length / 4);
+
+            translate([43, case_width, wall_thickness + 8])
+                rotate([90, 0, 0])
+                rotate([0, 180, 0])
+                linear_extrude(1)
+                text("lights", size = 3);
+
+            translate([67, case_width, wall_thickness + 8])
+                rotate([90, 0, 0])
+                rotate([0, 180, 0])
+                linear_extrude(1)
+                text("left", size = 3);
+
+            translate([55, case_width, wall_thickness + 8])
+                rotate([90, 0, 0])
+                rotate([0, 180, 0])
+                linear_extrude(1)
+                text("right", size = 3);
+            // translate([case_length / 2, case_width / 2, -20]) rotate([0, 90, 0]) top_clasp();
+        }
+
+        translate([case_length / 2, case_width / 2, -threshold]) hexagon(4.5, 6);
+
+        # translate([8.5 + wall_thickness, case_width - wall_thickness - threshold, wall_thickness])
+        # cube([60, wall_thickness * 2, 7]);
+    }
+}
+
+module lamp() {
+    union() {
+        translate([0, 0, -0.5]) cube([12.9 + threshold, 8, 4], center = true);
+        translate([0, 0, .88]) cube([5 + threshold, 5 + threshold, 1.56], center = true);
+        /*
+        translate([0, 0, -1.56]) cube([12.9, 7.6, wall_thickness], center = true);
+        */
+    }
+}
+
+module button() {
+    union() {
+        cube([3.5 + threshold, 6.1 + threshold, 4 + threshold], center = true);
+        translate([0, 0, -0.5]) cube([1.2, 7, 3 + threshold], center = true);
+    }
+}
+
+module lid() {
+    lid_width = case_width + hinge_radius * 2 + wall_thickness;
+    hinge_length = case_length / 4;
+    union() {
+        difference() {
+            rounded_cube([case_length,
+                      lid_width,
+                      wall_thickness],
+                     bevel);
+            translate([0, lid_width / 5, 0.4]) lamp();
+            translate([-15, lid_width / 5, 0.4]) lamp();
+            translate([15, lid_width / 5, 0.4]) lamp();
+            translate([-30, lid_width / 5, 0]) button();
+            translate([30, lid_width / 5, 0]) button();
+
+            translate([0, lid_width / 5, -2]) cube([20, 7, 3], center = true);
+
+            color("black") translate([-2, lid_width / 5 - 5, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h=5, r = 1, center = true, $fn = circular_face_count);
+            color("black") translate([-17, lid_width / 5 - 5, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h=5, r = 1, center = true, $fn = circular_face_count);
+            color("black") translate([13, lid_width / 5 - 5, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h=5, r = 1, center = true, $fn = circular_face_count);
+            color("black") translate([-30, lid_width / 5 - 5, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h=5, r = 1, center = true, $fn = circular_face_count);
+            color("black") translate([30, lid_width / 5 - 5, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h=5, r = 1, center = true, $fn = circular_face_count);
+            color("black") translate([0, 10, -2]) rotate([0, 90, 0]) cylinder(h = 62, r = 1, center = true, $fn = circular_face_count);
+
+            color("red") translate([-33, 21, -2]) rotate([0, 90, 0]) cylinder(h = 5, r = 1, center = true, $fn = circular_face_count);
+            color("red") translate([-35, 13, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h = 18, r = 1, center = true, $fn = circular_face_count);
+            color("red") translate([33, 21, -2]) rotate([0, 90, 0]) cylinder(h = 5, r = 1, center = true, $fn = circular_face_count);
+            color("red") translate([35, 13, -2]) rotate([0, 0, 90]) rotate([0, 90, 0]) cylinder(h = 18, r = 1, center = true, $fn = circular_face_count);
+            color("red") translate([0, 5, -2]) rotate([0, 90, 0]) cylinder(h = 70, r = 1, center = true, $fn = circular_face_count);
+        }
+
+        translate([case_length / 2 - hinge_length / 2, lid_width / 2 - wall_thickness / 2 - 0.5, -wall_thickness / 2]) rotate([0, 0, 90]) hinge(hinge_length);
+        translate([-case_length / 2 + hinge_length / 2, lid_width / 2 - wall_thickness / 2 - 0.5, -wall_thickness / 2]) rotate([0, 0, 90]) hinge(hinge_length);
+
+        translate([0, -lid_width / 2 + bevel, -3]) rounded_cube([20, wall_thickness / 2, 10], bevel);
+        color("blue") translate([-9, -lid_width / 2 + 1.5, -6]) rotate([90, 0, 0]) rotate([0, 90, 0]) linear_extrude(18) circle(1, $fn = 3);
+        color("blue") translate([-9, -lid_width / 2 + 1.5, -7]) rotate([90, 0, 0]) rotate([0, 90, 0]) linear_extrude(18) circle(1, $fn = 3);
+    }
+}
+
+module box_side() {
+    box_side_slider(case_length, case_width, case_height);
+}
+
+module case_base() {
+    difference() {
+        rounded_cube([case_length, case_width, wall_thickness + 2], bevel = 0.5);
+        translate([wall_thickness, 0, 2]) rounded_cube([case_length + threshold, board_width + threshold, 2 + threshold]);
+
+        // These give a screw-hole in the center which will allow the clamp to be attached
+        translate([0, 0, -1]) hexagon(4.5, 2);
+        translate([0, 0, -wall_thickness / 2]) cylinder(r = 2, h = wall_thickness + threshold, center = true);
+
+        // and now a bit of an indentation to help the clip remain in place
+        translate([0, 0, -4.5]) cube([clasp_width + threshold, clasp_width + threshold, wall_thickness], center = true);
+
+        // here are some grooves along the edges that can be used to piece parts together
+        translate([wall_thickness / 2, case_width / 2 - wall_thickness / 2, wall_thickness / 2])
+            cube([board_length + wall_thickness, wall_thickness / 2, wall_thickness / 2 + threshold], center = true);
+        translate([wall_thickness / 2, -case_width / 2 + wall_thickness / 2, wall_thickness / 2])
+            cube([board_length + wall_thickness, wall_thickness / 2, wall_thickness / 2 + threshold], center = true);
+    }
+}
+

bike-lights/case/control_panel_case.scad

@@ -0,0 +1,11 @@
+
+include <./control_panel.scad>
+
+/*
+difference() {
+    color("blue") rounded_cube([5, 5, 5], bevel = 0.5);
+    translate([0, 0, 1]) rounded_cube([4, 4, 4]);
+};
+*/
+
+case_base();

bike-lights/case/control_panel_lid.scad

@@ -0,0 +1,6 @@
+
+include <./control_panel.scad>
+
+lid();
+// lamp();
+

bike-lights/case/control_panel_slider.scad

@@ -0,0 +1,4 @@
+
+include <./control_panel.scad>
+
+box_side();

bike-lights/core/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "lights-core"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+az      = { version = "1" }
+fixed   = { version = "1" }

bike-lights/core/src/lib.rs

@@ -0,0 +1,481 @@
+#![no_std]
+
+extern crate alloc;
+use alloc::boxed::Box;
+use az::*;
+use core::{
+    clone::Clone,
+    cmp::PartialEq,
+    default::Default,
+    ops::{Add, Sub},
+    option::Option,
+};
+use fixed::types::{I48F16, I8F8, U128F0, U16F0};
+
+mod patterns;
+pub use patterns::*;
+
+mod types;
+pub use types::{BodyPattern, DashboardPattern, RGB};
+
+fn calculate_frames(starting_time: U128F0, now: U128F0) -> U16F0 {
+    let frames_128 = (now - starting_time) / U128F0::from(FPS);
+    (frames_128 % U128F0::from(U16F0::MAX)).cast()
+}
+
+fn calculate_slope(start: I8F8, end: I8F8, frames: U16F0) -> I8F8 {
+    let slope_i16f16 = (I48F16::from(end) - I48F16::from(start)) / I48F16::from(frames);
+    slope_i16f16.saturating_as()
+}
+
+fn linear_ease(value: I8F8, frames: U16F0, slope: I8F8) -> I8F8 {
+    let value_i16f16 = I48F16::from(value) + I48F16::from(frames) * I48F16::from(slope);
+    value_i16f16.saturating_as()
+}
+
+#[derive(Clone, Copy, PartialOrd, Ord, PartialEq, Eq)]
+pub struct Instant(pub U128F0);
+
+impl Default for Instant {
+    fn default() -> Self {
+        Self(U128F0::from(0 as u8))
+    }
+}
+
+impl Add for Instant {
+    type Output = Self;
+
+    fn add(self, r: Self) -> Self::Output {
+        Self(self.0 + r.0)
+    }
+}
+
+impl Sub for Instant {
+    type Output = Self;
+
+    fn sub(self, r: Self) -> Self::Output {
+        Self(self.0 - r.0)
+    }
+}
+
+pub const FPS: u8 = 30;
+
+pub trait UI {
+    fn check_event(&mut self, current_time: Instant) -> Option<Event>;
+    fn update_lights(&self, dashboard_lights: DashboardPattern, body_lights: BodyPattern);
+}
+
+pub trait Animation {
+    fn tick(&mut self, time: Instant) -> (DashboardPattern, BodyPattern);
+}
+
+/*
+pub struct DefaultAnimation {}
+
+impl Animation for DefaultAnimation {
+    fn tick(&mut self, _: Instant) -> (DashboardPattern, BodyPattern) {
+        (WATER_DASHBOARD, WATER_BODY)
+    }
+}
+*/
+
+pub struct Fade {
+    starting_dashboard: DashboardPattern,
+    starting_lights: BodyPattern,
+
+    start_time: Instant,
+    dashboard_slope: [RGB<I8F8>; 3],
+    body_slope: [RGB<I8F8>; 60],
+    frames: U16F0,
+}
+
+impl Fade {
+    fn new(
+        dashboard: DashboardPattern,
+        lights: BodyPattern,
+        ending_dashboard: DashboardPattern,
+        ending_lights: BodyPattern,
+        frames: U16F0,
+        time: Instant,
+    ) -> Self {
+        let mut dashboard_slope = [Default::default(); 3];
+        let mut body_slope = [Default::default(); 60];
+        for i in 0..3 {
+            let slope = RGB {
+                r: calculate_slope(dashboard[i].r, ending_dashboard[i].r, frames),
+                g: calculate_slope(dashboard[i].g, ending_dashboard[i].g, frames),
+                b: calculate_slope(dashboard[i].b, ending_dashboard[i].b, frames),
+            };
+            dashboard_slope[i] = slope;
+        }
+
+        for i in 0..60 {
+            let slope = RGB {
+                r: calculate_slope(lights[i].r, ending_lights[i].r, frames),
+                g: calculate_slope(lights[i].g, ending_lights[i].g, frames),
+                b: calculate_slope(lights[i].b, ending_lights[i].b, frames),
+            };
+            body_slope[i] = slope;
+        }
+
+        Self {
+            starting_dashboard: dashboard,
+            starting_lights: lights,
+            start_time: time,
+            dashboard_slope,
+            body_slope,
+            frames,
+        }
+    }
+}
+
+impl Animation for Fade {
+    fn tick(&mut self, time: Instant) -> (DashboardPattern, BodyPattern) {
+        let mut frames = calculate_frames(self.start_time.0, time.0);
+        if frames > self.frames {
+            frames = self.frames
+        }
+        let mut dashboard_pattern: DashboardPattern = OFF_DASHBOARD;
+        let mut body_pattern: BodyPattern = OFF_BODY;
+
+        for i in 0..3 {
+            dashboard_pattern[i].r = linear_ease(
+                self.starting_dashboard[i].r,
+                frames,
+                self.dashboard_slope[i].r,
+            );
+            dashboard_pattern[i].g = linear_ease(
+                self.starting_dashboard[i].g,
+                frames,
+                self.dashboard_slope[i].g,
+            );
+            dashboard_pattern[i].b = linear_ease(
+                self.starting_dashboard[i].b,
+                frames,
+                self.dashboard_slope[i].b,
+            );
+        }
+
+        for i in 0..60 {
+            body_pattern[i].r =
+                linear_ease(self.starting_lights[i].r, frames, self.body_slope[i].r);
+            body_pattern[i].g =
+                linear_ease(self.starting_lights[i].g, frames, self.body_slope[i].g);
+            body_pattern[i].b =
+                linear_ease(self.starting_lights[i].b, frames, self.body_slope[i].b);
+        }
+
+        (dashboard_pattern, body_pattern)
+    }
+}
+
+#[derive(Debug)]
+pub enum FadeDirection {
+    Transition,
+    FadeIn,
+    FadeOut,
+}
+
+pub enum BlinkerDirection {
+    Left,
+    Right,
+}
+
+pub struct Blinker {
+    transition: Fade,
+    fade_in: Fade,
+    fade_out: Fade,
+    direction: FadeDirection,
+
+    start_time: Instant,
+    frames: U16F0,
+}
+
+impl Blinker {
+    fn new(
+        starting_dashboard: DashboardPattern,
+        starting_body: BodyPattern,
+        direction: BlinkerDirection,
+        time: Instant,
+    ) -> Self {
+        let mut ending_dashboard = OFF_DASHBOARD.clone();
+
+        match direction {
+            BlinkerDirection::Left => {
+                ending_dashboard[0].r = LEFT_BLINKER_DASHBOARD[0].r;
+                ending_dashboard[0].g = LEFT_BLINKER_DASHBOARD[0].g;
+                ending_dashboard[0].b = LEFT_BLINKER_DASHBOARD[0].b;
+            }
+            BlinkerDirection::Right => {
+                ending_dashboard[2].r = RIGHT_BLINKER_DASHBOARD[2].r;
+                ending_dashboard[2].g = RIGHT_BLINKER_DASHBOARD[2].g;
+                ending_dashboard[2].b = RIGHT_BLINKER_DASHBOARD[2].b;
+            }
+        }
+
+        let mut ending_body = OFF_BODY.clone();
+        match direction {
+            BlinkerDirection::Left => {
+                for i in 0..30 {
+                    ending_body[i].r = LEFT_BLINKER_BODY[i].r;
+                    ending_body[i].g = LEFT_BLINKER_BODY[i].g;
+                    ending_body[i].b = LEFT_BLINKER_BODY[i].b;
+                }
+            }
+            BlinkerDirection::Right => {
+                for i in 30..60 {
+                    ending_body[i].r = RIGHT_BLINKER_BODY[i].r;
+                    ending_body[i].g = RIGHT_BLINKER_BODY[i].g;
+                    ending_body[i].b = RIGHT_BLINKER_BODY[i].b;
+                }
+            }
+        }
+
+        Blinker {
+            transition: Fade::new(
+                starting_dashboard.clone(),
+                starting_body.clone(),
+                ending_dashboard.clone(),
+                ending_body.clone(),
+                BLINKER_FRAMES,
+                time,
+            ),
+            fade_in: Fade::new(
+                OFF_DASHBOARD.clone(),
+                OFF_BODY.clone(),
+                ending_dashboard.clone(),
+                ending_body.clone(),
+                BLINKER_FRAMES,
+                time,
+            ),
+            fade_out: Fade::new(
+                ending_dashboard.clone(),
+                ending_body.clone(),
+                OFF_DASHBOARD.clone(),
+                OFF_BODY.clone(),
+                BLINKER_FRAMES,
+                time,
+            ),
+            direction: FadeDirection::Transition,
+            start_time: time,
+            frames: BLINKER_FRAMES,
+        }
+    }
+}
+
+impl Animation for Blinker {
+    fn tick(&mut self, time: Instant) -> (DashboardPattern, BodyPattern) {
+        let frames = calculate_frames(self.start_time.0, time.0);
+        if frames > self.frames {
+            match self.direction {
+                FadeDirection::Transition => {
+                    self.direction = FadeDirection::FadeOut;
+                    self.fade_out.start_time = time;
+                }
+                FadeDirection::FadeIn => {
+                    self.direction = FadeDirection::FadeOut;
+                    self.fade_out.start_time = time;
+                }
+                FadeDirection::FadeOut => {
+                    self.direction = FadeDirection::FadeIn;
+                    self.fade_in.start_time = time;
+                }
+            }
+            self.start_time = time;
+        }
+
+        match self.direction {
+            FadeDirection::Transition => self.transition.tick(time),
+            FadeDirection::FadeIn => self.fade_in.tick(time),
+            FadeDirection::FadeOut => self.fade_out.tick(time),
+        }
+    }
+}
+
+#[derive(Clone, Debug)]
+pub enum Event {
+    Brake,
+    BrakeRelease,
+    LeftBlinker,
+    NextPattern,
+    PreviousPattern,
+    RightBlinker,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum Pattern {
+    Water,
+    GayPride,
+    TransPride,
+}
+
+impl Pattern {
+    fn previous(&self) -> Pattern {
+        match self {
+            Pattern::Water => Pattern::TransPride,
+            Pattern::GayPride => Pattern::Water,
+            Pattern::TransPride => Pattern::GayPride,
+        }
+    }
+
+    fn next(&self) -> Pattern {
+        match self {
+            Pattern::Water => Pattern::GayPride,
+            Pattern::GayPride => Pattern::TransPride,
+            Pattern::TransPride => Pattern::Water,
+        }
+    }
+
+    fn dashboard(&self) -> DashboardPattern {
+        match self {
+            Pattern::Water => WATER_DASHBOARD,
+            Pattern::GayPride => PRIDE_DASHBOARD,
+            Pattern::TransPride => TRANS_PRIDE_DASHBOARD,
+        }
+    }
+
+    fn body(&self) -> BodyPattern {
+        match self {
+            Pattern::Water => WATER_BODY,
+            Pattern::GayPride => PRIDE_BODY,
+            Pattern::TransPride => TRANS_PRIDE_BODY,
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub enum State {
+    Pattern(Pattern),
+    Brake,
+    LeftBlinker,
+    RightBlinker,
+    BrakeLeftBlinker,
+    BrakeRightBlinker,
+}
+
+pub struct App {
+    ui: Box<dyn UI>,
+    state: State,
+    home_pattern: Pattern,
+    current_animation: Box<dyn Animation>,
+    dashboard_lights: DashboardPattern,
+    lights: BodyPattern,
+}
+
+impl App {
+    pub fn new(ui: Box<dyn UI>) -> Self {
+        let pattern = Pattern::Water;
+        Self {
+            ui,
+            state: State::Pattern(pattern),
+            home_pattern: pattern,
+            current_animation: Box::new(Fade::new(
+                OFF_DASHBOARD,
+                OFF_BODY,
+                pattern.dashboard(),
+                pattern.body(),
+                DEFAULT_FRAMES,
+                Instant((0 as u32).into()),
+            )),
+            dashboard_lights: OFF_DASHBOARD,
+            lights: OFF_BODY,
+        }
+    }
+
+    fn update_animation(&mut self, time: Instant) {
+        match self.state {
+            State::Pattern(ref pattern) => {
+                self.current_animation = Box::new(Fade::new(
+                    self.dashboard_lights.clone(),
+                    self.lights.clone(),
+                    pattern.dashboard(),
+                    pattern.body(),
+                    DEFAULT_FRAMES,
+                    time,
+                ))
+            }
+            State::Brake => {
+                self.current_animation = Box::new(Fade::new(
+                    self.dashboard_lights.clone(),
+                    self.lights.clone(),
+                    BRAKES_DASHBOARD,
+                    BRAKES_BODY,
+                    BRAKES_FRAMES,
+                    time,
+                ));
+            }
+            State::LeftBlinker => {
+                self.current_animation = Box::new(Blinker::new(
+                    self.dashboard_lights.clone(),
+                    self.lights.clone(),
+                    BlinkerDirection::Left,
+                    time,
+                ));
+            }
+            State::RightBlinker => {
+                self.current_animation = Box::new(Blinker::new(
+                    self.dashboard_lights.clone(),
+                    self.lights.clone(),
+                    BlinkerDirection::Right,
+                    time,
+                ));
+            }
+            State::BrakeLeftBlinker => (),
+            State::BrakeRightBlinker => (),
+        }
+    }
+
+    fn update_state(&mut self, event: Event) {
+        match event {
+            Event::Brake => {
+                if self.state == State::Brake {
+                    self.state = State::Pattern(self.home_pattern);
+                } else {
+                    self.state = State::Brake;
+                }
+            }
+            Event::BrakeRelease => self.state = State::Pattern(self.home_pattern),
+            Event::LeftBlinker => match self.state {
+                State::Brake => self.state = State::BrakeLeftBlinker,
+                State::BrakeLeftBlinker => self.state = State::Brake,
+                State::LeftBlinker => self.state = State::Pattern(self.home_pattern),
+                _ => self.state = State::LeftBlinker,
+            },
+            Event::NextPattern => match self.state {
+                State::Pattern(ref pattern) => {
+                    self.home_pattern = pattern.next();
+                    self.state = State::Pattern(self.home_pattern);
+                }
+                _ => (),
+            },
+            Event::PreviousPattern => match self.state {
+                State::Pattern(ref pattern) => {
+                    self.home_pattern = pattern.previous();
+                    self.state = State::Pattern(self.home_pattern);
+                }
+                _ => (),
+            },
+            Event::RightBlinker => match self.state {
+                State::Brake => self.state = State::BrakeRightBlinker,
+                State::BrakeRightBlinker => self.state = State::Brake,
+                State::RightBlinker => self.state = State::Pattern(self.home_pattern),
+                _ => self.state = State::RightBlinker,
+            },
+        }
+    }
+
+    pub fn tick(&mut self, time: Instant) {
+        match self.ui.check_event(time) {
+            Some(event) => {
+                self.update_state(event);
+                self.update_animation(time);
+            }
+            None => {}
+        };
+
+        let (dashboard, lights) = self.current_animation.tick(time);
+        self.dashboard_lights = dashboard.clone();
+        self.lights = lights.clone();
+        self.ui.update_lights(dashboard, lights);
+    }
+}

bike-lights/core/src/patterns.rs

@@ -0,0 +1,400 @@
+use crate::{BodyPattern, DashboardPattern, RGB};
+use fixed::types::{I8F8, U16F0};
+
+pub const RGB_OFF: RGB<I8F8> = RGB {
+    r: I8F8::lit("0"),
+    g: I8F8::lit("0"),
+    b: I8F8::lit("0"),
+};
+
+pub const RGB_WHITE: RGB<I8F8> = RGB {
+    r: I8F8::lit("1"),
+    g: I8F8::lit("1"),
+    b: I8F8::lit("1"),
+};
+
+pub const BRAKES_RED: RGB<I8F8> = RGB {
+    r: I8F8::lit("1"),
+    g: I8F8::lit("0"),
+    b: I8F8::lit("0"),
+};
+
+pub const BLINKER_AMBER: RGB<I8F8> = RGB {
+    r: I8F8::lit("1"),
+    g: I8F8::lit("0.15"),
+    b: I8F8::lit("0"),
+};
+
+pub const PRIDE_RED: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.95"),
+    g: I8F8::lit("0.00"),
+    b: I8F8::lit("0.00"),
+};
+
+pub const PRIDE_ORANGE: RGB<I8F8> = RGB {
+    r: I8F8::lit("1.0"),
+    g: I8F8::lit("0.25"),
+    b: I8F8::lit("0"),
+};
+
+pub const PRIDE_YELLOW: RGB<I8F8> = RGB {
+    r: I8F8::lit("1.0"),
+    g: I8F8::lit("0.85"),
+    b: I8F8::lit("0"),
+};
+
+pub const PRIDE_GREEN: RGB<I8F8> = RGB {
+    r: I8F8::lit("0"),
+    g: I8F8::lit("0.95"),
+    b: I8F8::lit("0.05"),
+};
+
+pub const PRIDE_INDIGO: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.04"),
+    g: I8F8::lit("0.15"),
+    b: I8F8::lit("0.55"),
+};
+
+pub const PRIDE_VIOLET: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.75"),
+    g: I8F8::lit("0.0"),
+    b: I8F8::lit("0.80"),
+};
+
+pub const TRANS_BLUE: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.06"),
+    g: I8F8::lit("0.41"),
+    b: I8F8::lit("0.98"),
+};
+
+pub const TRANS_PINK: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.96"),
+    g: I8F8::lit("0.16"),
+    b: I8F8::lit("0.32"),
+};
+
+pub const WATER_1: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.0"),
+    g: I8F8::lit("0.0"),
+    b: I8F8::lit("0.75"),
+};
+
+pub const WATER_2: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.8"),
+    g: I8F8::lit("0.8"),
+    b: I8F8::lit("0.8"),
+};
+
+pub const WATER_3: RGB<I8F8> = RGB {
+    r: I8F8::lit("0.00"),
+    g: I8F8::lit("0.75"),
+    b: I8F8::lit("0.75"),
+};
+
+pub const OFF_DASHBOARD: DashboardPattern = [RGB_OFF; 3];
+pub const OFF_BODY: BodyPattern = [RGB_OFF; 60];
+
+pub const DEFAULT_FRAMES: U16F0 = U16F0::lit("30");
+
+pub const WATER_DASHBOARD: DashboardPattern = [WATER_1, WATER_2, WATER_3];
+
+pub const WATER_BODY: BodyPattern = [
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+
+
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+    WATER_3,
+
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+    WATER_2,
+
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+    WATER_1,
+];
+
+pub const PRIDE_DASHBOARD: DashboardPattern = [PRIDE_RED, PRIDE_GREEN, PRIDE_INDIGO];
+
+pub const PRIDE_BODY: BodyPattern = [
+    // Left Side
+    // Red
+    PRIDE_RED,
+    PRIDE_RED,
+    PRIDE_RED,
+    PRIDE_RED,
+    PRIDE_RED,
+    // Orange
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    // Yellow
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    // Green
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    // Indigo
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    // Violet
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    // Right Side
+    // Violet
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    PRIDE_VIOLET,
+    // Indigo
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    PRIDE_INDIGO,
+    // Green
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    PRIDE_GREEN,
+    // Yellow
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    PRIDE_YELLOW,
+    // Orange
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    PRIDE_ORANGE,
+    // Red
+    PRIDE_RED,
+    PRIDE_RED,
+    PRIDE_RED,
+    PRIDE_RED,
+    PRIDE_RED,
+];
+
+pub const TRANS_PRIDE_DASHBOARD: DashboardPattern = [TRANS_BLUE, RGB_WHITE, TRANS_PINK];
+
+pub const TRANS_PRIDE_BODY: BodyPattern = [
+    // Left Side
+    TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_PINK, TRANS_PINK,
+    TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK, RGB_WHITE, RGB_WHITE, RGB_WHITE, RGB_WHITE,
+    RGB_WHITE, RGB_WHITE, TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK,
+    TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE,
+    // Right side
+    TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_PINK, TRANS_PINK,
+    TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK, RGB_WHITE, RGB_WHITE, RGB_WHITE, RGB_WHITE,
+    RGB_WHITE, RGB_WHITE, TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK, TRANS_PINK,
+    TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE, TRANS_BLUE,
+];
+
+pub const BRAKES_FRAMES: U16F0 = U16F0::lit("15");
+
+pub const BRAKES_DASHBOARD: DashboardPattern = [BRAKES_RED; 3];
+
+pub const BRAKES_BODY: BodyPattern = [BRAKES_RED; 60];
+
+pub const BLINKER_FRAMES: U16F0 = U16F0::lit("10");
+
+pub const LEFT_BLINKER_DASHBOARD: DashboardPattern = [BLINKER_AMBER, RGB_OFF, RGB_OFF];
+
+pub const LEFT_BLINKER_BODY: BodyPattern = [
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+];
+
+pub const RIGHT_BLINKER_DASHBOARD: DashboardPattern = [RGB_OFF, RGB_OFF, BLINKER_AMBER];
+
+pub const RIGHT_BLINKER_BODY: BodyPattern = [
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    RGB_OFF,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+    BLINKER_AMBER,
+];

bike-lights/core/src/types.rs

@@ -0,0 +1,17 @@
+use core::default::Default;
+use fixed::types::I8F8;
+
+#[derive(Clone, Copy, Default, Debug)]
+pub struct RGB<T> {
+    pub r: T,
+    pub g: T,
+    pub b: T,
+}
+
+const DASHBOARD_LIGHT_COUNT: usize = 3;
+
+pub type DashboardPattern = [RGB<I8F8>; DASHBOARD_LIGHT_COUNT];
+
+const BODY_LIGHT_COUNT: usize = 60;
+
+pub type BodyPattern = [RGB<I8F8>; BODY_LIGHT_COUNT];

bike-lights/simulator/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "simulator"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+adw         = { version = "0.5", package = "libadwaita", features = [ "v1_2" ] }
+cairo-rs    = { version = "0.18" }
+fixed       = { version = "1" }
+gio         = { version = "0.18" }
+glib        = { version = "0.18" }
+gtk         = { version = "0.7", package = "gtk4", features = [ "v4_8" ] }
+lights-core = { path = "../core" }
+pango       = { version = "*" }

bike-lights/simulator/src/main.rs

@@ -0,0 +1,288 @@
+use adw::prelude::*;
+use fixed::types::{I8F8, U128F0};
+use glib::{Object, Sender};
+use gtk::subclass::prelude::*;
+use lights_core::{
+    App, BodyPattern, DashboardPattern, Event, Instant, FPS, OFF_BODY, OFF_DASHBOARD, RGB, UI,
+};
+use std::{
+    cell::RefCell,
+    env,
+    rc::Rc,
+    sync::mpsc::{Receiver, TryRecvError},
+};
+
+const WIDTH: i32 = 640;
+const HEIGHT: i32 = 480;
+
+pub struct Update {
+    dashboard: DashboardPattern,
+    lights: BodyPattern,
+}
+
+pub struct DashboardLightsPrivate {
+    lights: Rc<RefCell<DashboardPattern>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DashboardLightsPrivate {
+    const NAME: &'static str = "DashboardLights";
+    type Type = DashboardLights;
+    type ParentType = gtk::DrawingArea;
+
+    fn new() -> Self {
+        Self {
+            lights: Rc::new(RefCell::new(OFF_DASHBOARD)),
+        }
+    }
+}
+
+impl ObjectImpl for DashboardLightsPrivate {}
+impl WidgetImpl for DashboardLightsPrivate {}
+impl DrawingAreaImpl for DashboardLightsPrivate {}
+
+glib::wrapper! {
+    pub struct DashboardLights(ObjectSubclass<DashboardLightsPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl DashboardLights {
+    pub fn new() -> Self {
+        let s: Self = Object::builder().build();
+
+        s.set_width_request(WIDTH);
+        s.set_height_request(100);
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, width, _| {
+                let start = width as f64 / 2. - 150.;
+                let lights = s.imp().lights.borrow();
+                for i in 0..3 {
+                    context.set_source_rgb(
+                        lights[i].r.into(),
+                        lights[i].g.into(),
+                        lights[i].b.into(),
+                    );
+                    context.rectangle(start + 100. * i as f64, 10., 80., 80.);
+                    let _ = context.fill();
+                }
+            }
+        });
+
+        s
+    }
+
+    pub fn set_lights(&self, lights: DashboardPattern) {
+        *self.imp().lights.borrow_mut() = lights;
+        self.queue_draw();
+    }
+}
+
+pub struct BikeLightsPrivate {
+    lights: Rc<RefCell<BodyPattern>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for BikeLightsPrivate {
+    const NAME: &'static str = "BikeLights";
+    type Type = BikeLights;
+    type ParentType = gtk::DrawingArea;
+
+    fn new() -> Self {
+        Self {
+            lights: Rc::new(RefCell::new(OFF_BODY)),
+        }
+    }
+}
+
+impl ObjectImpl for BikeLightsPrivate {}
+impl WidgetImpl for BikeLightsPrivate {}
+impl DrawingAreaImpl for BikeLightsPrivate {}
+
+glib::wrapper! {
+    pub struct BikeLights(ObjectSubclass<BikeLightsPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl BikeLights {
+    pub fn new() -> Self {
+        let s: Self = Object::builder().build();
+
+        s.set_width_request(WIDTH);
+        s.set_height_request(640);
+
+        let center = WIDTH as f64 / 2.;
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, _, _| {
+                let lights = s.imp().lights.borrow();
+                for i in 0..30 {
+                    context.set_source_rgb(
+                        lights[i].r.into(),
+                        lights[i].g.into(),
+                        lights[i].b.into(),
+                    );
+                    context.rectangle(center - 45., 5. + 20. * i as f64, 15., 15.);
+                    let _ = context.fill();
+                }
+                for i in 0..30 {
+                    context.set_source_rgb(
+                        lights[i + 30].r.into(),
+                        lights[i + 30].g.into(),
+                        lights[i + 30].b.into(),
+                    );
+                    context.rectangle(center + 15., 5. + 20. * (30. - (i + 1) as f64), 15., 15.);
+                    let _ = context.fill();
+                }
+            }
+        });
+
+        s
+    }
+
+    pub fn set_lights(&self, lights: [RGB<I8F8>; 60]) {
+        *self.imp().lights.borrow_mut() = lights;
+        self.queue_draw();
+    }
+}
+
+struct GTKUI {
+    tx: Sender<Update>,
+    rx: Receiver<Event>,
+}
+
+impl UI for GTKUI {
+    fn check_event(&mut self, _: Instant) -> Option<Event> {
+        match self.rx.try_recv() {
+            Ok(event) => Some(event),
+            Err(TryRecvError::Empty) => None,
+            Err(TryRecvError::Disconnected) => None,
+        }
+    }
+
+    fn update_lights(&self, dashboard_lights: DashboardPattern, lights: BodyPattern) {
+        self.tx
+            .send(Update {
+                dashboard: dashboard_lights,
+                lights,
+            })
+            .unwrap();
+    }
+}
+
+fn main() {
+    let adw_app = adw::Application::builder()
+        .application_id("com.luminescent-dreams.bike-light-simulator")
+        .build();
+
+    adw_app.connect_activate(move |adw_app| {
+        let (update_tx, update_rx) =
+            gtk::glib::MainContext::channel::<Update>(gtk::glib::Priority::DEFAULT);
+        let (event_tx, event_rx) = std::sync::mpsc::channel();
+
+        std::thread::spawn(move || {
+            let mut bike_app = App::new(Box::new(GTKUI {
+                tx: update_tx,
+                rx: event_rx,
+            }));
+            loop {
+                bike_app.tick(Instant(U128F0::from(
+                    std::time::SystemTime::now()
+                        .duration_since(std::time::UNIX_EPOCH)
+                        .unwrap()
+                        .as_millis(),
+                )));
+                std::thread::sleep(std::time::Duration::from_millis(1000 / (FPS as u64)));
+            }
+        });
+
+        let window = adw::ApplicationWindow::builder()
+            .application(adw_app)
+            .default_width(WIDTH)
+            .default_height(HEIGHT)
+            .build();
+        let layout = gtk::Box::builder()
+            .orientation(gtk::Orientation::Vertical)
+            .build();
+        let controls = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+
+        let dashboard_lights = DashboardLights::new();
+        let bike_lights = BikeLights::new();
+
+        let left_button = gtk::Button::builder().label("L").build();
+        let brake_button = gtk::Button::builder().label("Brakes").build();
+        let right_button = gtk::Button::builder().label("R").build();
+
+        left_button.connect_clicked({
+            let event_tx = event_tx.clone();
+            move |_| {
+                let _ = event_tx.send(Event::LeftBlinker);
+            }
+        });
+
+        brake_button.connect_clicked({
+            let event_tx = event_tx.clone();
+            move |_| {
+                let _ = event_tx.send(Event::Brake);
+            }
+        });
+
+        right_button.connect_clicked({
+            let event_tx = event_tx.clone();
+            move |_| {
+                let _ = event_tx.send(Event::RightBlinker);
+            }
+        });
+
+        controls.append(&left_button);
+        controls.append(&brake_button);
+        controls.append(&right_button);
+        layout.append(&controls);
+
+        let pattern_controls = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+
+        let previous_pattern = gtk::Button::builder().label("Previous").build();
+        let next_pattern = gtk::Button::builder().label("Next").build();
+
+        previous_pattern.connect_clicked({
+            let event_tx = event_tx.clone();
+            move |_| {
+                let _ = event_tx.send(Event::PreviousPattern);
+            }
+        });
+
+        next_pattern.connect_clicked({
+            let event_tx = event_tx.clone();
+            move |_| {
+                let _ = event_tx.send(Event::NextPattern);
+            }
+        });
+
+        pattern_controls.append(&previous_pattern);
+        pattern_controls.append(&next_pattern);
+        layout.append(&pattern_controls);
+
+        layout.append(&dashboard_lights);
+        layout.append(&bike_lights);
+
+        update_rx.attach(None, {
+            let dashboard_lights = dashboard_lights.clone();
+            let bike_lights = bike_lights.clone();
+            move |Update { dashboard, lights }| {
+                dashboard_lights.set_lights(dashboard);
+                bike_lights.set_lights(lights);
+                glib::ControlFlow::Continue
+            }
+        });
+
+        window.set_content(Some(&layout));
+        window.present();
+    });
+
+    let args: Vec<String> = env::args().collect();
+    ApplicationExtManual::run_with_args(&adw_app, &args);
+}

build.sh

@@ -1,72 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-RUST_ALL_TARGETS=(
-    "changeset"
-    "config"
-    "config-derive"
-    "coordinates"
-    "cyberpunk-splash"
-    "dashboard"
-    "emseries"
-    "error-training"
-    "file-service"
-    "fluent-ergonomics"
-    "geo-types"
-    "gm-control-panel"
-    "hex-grid"
-    "ifc"
-    "kifu-core"
-    "kifu-gtk"
-    "memorycache"
-    "nom-training"
-    "result-extended"
-    "screenplay"
-    "sgf"
-)
-
-build_rust_targets() {
-    local CMD=$1
-    local TARGETS=${@/$CMD}
-
-    for target in $TARGETS; do
-        MODULE=$target CMD=$CMD ./builders/rust.sh
-    done
-}
-
-build_dist() {
-    local TARGETS=${@/$CMD}
-
-    for target in $TARGETS; do
-        if [ -f $target/dist.sh ]; then
-            build_rust_targets release ${TARGETS[*]}
-            cd $target && ./dist.sh
-        fi
-    done
-}
-
-export CARGO=`which cargo`
-
-if [ -z "${TARGET-}" ]; then
-    TARGET="all"
-fi
-
-if [ -z "${CMD-}" ]; then 
-    CMD="test release"
-fi
-
-if [ "${CMD}" == "clean" ]; then
-    cargo clean
-    exit 0
-fi
-
-for cmd in $CMD; do
-    if [ "${CMD}" == "dist" ]; then
-        build_dist $TARGET
-    elif [ "${TARGET}" == "all" ]; then
-        build_rust_targets $cmd ${RUST_ALL_TARGETS[*]}
-    else
-        build_rust_targets $cmd $TARGET
-    fi
-done

builders/rust.sh

@@ -1,41 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-if [ ! -z "$MODULE" ]; then
-    MODULE="-p $MODULE"
-fi
-
-if [ -z "${PARAMS-}" ]; then
-    PARAMS=""
-fi
-
-case $CMD in
-    build)
-        $CARGO build $MODULE $PARAMS
-        ;;
-    lint)
-        $CARGO clippy $MODULE $PARAMS -- -Dwarnings
-        ;;
-    test)
-        $CARGO test $MODULE $PARAMS
-        ;;
-    run)
-        $CARGO run $MODULE $PARAMS
-        ;;
-    release)
-        $CARGO clippy $MODULE $PARAMS -- -Dwarnings
-        $CARGO build --release $MODULE $PARAMS
-        $CARGO test --release $MODULE $PARAMS
-        ;;
-    clean)
-        $CARGO clean $MODULE
-        ;;
-    "")
-        echo "No command specified. Use build | lint | test | run | release | clean"
-        ;;
-    *)
-        echo "$CMD is unknown. Use build | lint | test | run | release | clean"
-        ;;
-esac
-

config/src/lib.rs

@@ -35,7 +35,7 @@ macro_rules! define_config {
             $($name($struct)),+
         }
 
-        #[derive(Clone, Debug)]
+        #[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
         pub struct Config {
             values: std::collections::HashMap<ConfigName, ConfigOption>,
         }

crate-hashes.json

@@ -0,0 +1,491 @@
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+}

cyber-slides/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "cyber-slides"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+async-std = "1.13.0"
+cairo-rs    = "0.18"
+cyberpunk   = { path = "../cyberpunk" }
+gio         = "0.18"
+glib        = "0.18"
+gtk         = { version = "0.7", package = "gtk4" }
+serde       = { version = "1.0.210", features = ["derive"] }
+serde_yml   = "0.0.12"

cyber-slides/src/main.rs

@@ -0,0 +1,416 @@
+use std::{
+    cell::RefCell,
+    collections::HashMap,
+    fs::File,
+    io::Read,
+    ops::Index,
+    path::Path,
+    rc::Rc,
+    sync::{Arc, RwLock},
+    time::{Duration, Instant},
+};
+
+use cairo::{Context, Rectangle};
+use cyberpunk::{AsymLine, AsymLineCutout, GlowPen, Pen, Text};
+use glib::{GString, Object};
+use gtk::{
+    glib::{self, Propagation},
+    prelude::*,
+    subclass::prelude::*,
+    EventControllerKey,
+};
+use serde::{Deserialize, Serialize};
+
+const FPS: u64 = 60;
+const PURPLE: (f64, f64, f64) = (0.7, 0., 1.);
+
+#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, Hash)]
+#[serde(rename_all = "lowercase")]
+enum Position {
+    Top,
+    Middle,
+    Bottom,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+struct Step {
+    text: String,
+    position: Position,
+    transition: Duration,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+struct Script(Vec<Step>);
+
+impl Script {
+    fn from_file(path: &Path) -> Result<Script, serde_yml::Error> {
+        let mut buf: Vec<u8> = Vec::new();
+        let mut f = File::open(path).unwrap();
+        f.read_to_end(&mut buf).unwrap();
+        let script = serde_yml::from_slice(&buf)?;
+        Ok(Self(script))
+    }
+
+    fn iter<'a>(&'a self) -> impl Iterator<Item = &'a Step> {
+        self.0.iter()
+    }
+
+    fn len(&self) -> usize {
+        self.0.len()
+    }
+}
+
+impl Default for Script {
+    fn default() -> Self {
+        Self(vec![])
+    }
+}
+
+impl Index<usize> for Script {
+    type Output = Step;
+
+    fn index(&self, index: usize) -> &Self::Output {
+        &self.0[index]
+    }
+}
+
+struct Fade {
+    text: String,
+    position: Position,
+    duration: Duration,
+
+    start_time: Instant,
+}
+
+trait Animation {
+    fn position(&self) -> Position;
+
+    fn tick(&self, now: Instant, context: &Context, width: f64);
+}
+
+impl Animation for Fade {
+    fn position(&self) -> Position {
+        self.position.clone()
+    }
+
+    fn tick(&self, now: Instant, context: &Context, width: f64) {
+        let total_frames = self.duration.as_secs() * FPS;
+        let alpha_rate: f64 = 1. / total_frames as f64;
+
+        let frames = (now - self.start_time).as_secs_f64() * FPS as f64;
+        let alpha = alpha_rate * frames as f64;
+
+        let text_display = Text::new(self.text.clone(), context, 64., width);
+        let _ = context.move_to(0., text_display.extents().height());
+        let _ = context.set_source_rgba(PURPLE.0, PURPLE.1, PURPLE.2, alpha);
+        text_display.draw();
+    }
+}
+
+struct CrossFade {
+    old_text: String,
+    new_text: String,
+    position: Position,
+    duration: Duration,
+
+    start_time: Instant,
+}
+
+impl Animation for CrossFade {
+    fn position(&self) -> Position {
+        self.position.clone()
+    }
+
+    fn tick(&self, now: Instant, context: &Context, width: f64) {
+        let total_frames = self.duration.as_secs() * FPS;
+        let alpha_rate: f64 = 1. / total_frames as f64;
+
+        let frames = (now - self.start_time).as_secs_f64() * FPS as f64;
+        let alpha = alpha_rate * frames as f64;
+
+        let text_display = Text::new(self.old_text.clone(), context, 64., width);
+        let _ = context.move_to(0., text_display.extents().height());
+        let _ = context.set_source_rgba(PURPLE.0, PURPLE.1, PURPLE.2, 1. - alpha);
+        text_display.draw();
+
+        let text_display = Text::new(self.new_text.clone(), context, 64., width);
+        let _ = context.move_to(0., text_display.extents().height());
+        let _ = context.set_source_rgba(PURPLE.0, PURPLE.1, PURPLE.2, alpha);
+        text_display.draw();
+    }
+}
+
+#[derive(Debug)]
+pub struct CyberScreenState {
+    script: Script,
+    idx: Option<usize>,
+    top: Option<Step>,
+    middle: Option<Step>,
+    bottom: Option<Step>,
+}
+
+impl Default for CyberScreenState {
+    fn default() -> Self {
+        Self {
+            script: Script(vec![]),
+            idx: None,
+            top: None,
+            middle: None,
+            bottom: None,
+        }
+    }
+}
+
+impl CyberScreenState {
+    fn new(script: Script) -> CyberScreenState {
+        let mut s = CyberScreenState::default();
+        s.script = script;
+        s
+    }
+
+    fn next_page(&mut self) -> Box<dyn Animation> {
+        let idx = match self.idx {
+            None => 0,
+            Some(idx) => {
+                if idx < self.script.len() {
+                    idx + 1
+                } else {
+                    idx
+                }
+            }
+        };
+        self.idx = Some(idx);
+        let step = self.script[idx].clone();
+
+        let (old, new) = match step.position {
+            Position::Top => {
+                let old = self.top.replace(step.clone());
+                (old, step)
+            }
+            Position::Middle => {
+                let old = self.middle.replace(step.clone());
+                (old, step)
+            }
+            Position::Bottom => {
+                let old = self.bottom.replace(step.clone());
+                (old, step)
+            }
+        };
+
+        match old {
+            Some(old) => Box::new(CrossFade {
+                old_text: old.text.clone(),
+                new_text: new.text.clone(),
+                position: new.position,
+                duration: new.transition,
+                start_time: Instant::now(),
+            }),
+            None => Box::new(Fade {
+                text: new.text.clone(),
+                position: new.position,
+                duration: new.transition,
+                start_time: Instant::now(),
+            }),
+        }
+    }
+}
+
+#[derive(Default)]
+pub struct CyberScreenPrivate {
+    state: Rc<RefCell<CyberScreenState>>,
+    // For crossfading to work, I have to detect that there is an old animation in a position, and
+    // replace it with the new one.
+    animations: Rc<RefCell<HashMap<Position, Box<dyn Animation>>>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for CyberScreenPrivate {
+    const NAME: &'static str = "CyberScreen";
+    type Type = CyberScreen;
+    type ParentType = gtk::DrawingArea;
+}
+
+impl ObjectImpl for CyberScreenPrivate {}
+impl WidgetImpl for CyberScreenPrivate {}
+impl DrawingAreaImpl for CyberScreenPrivate {}
+
+impl CyberScreenPrivate {
+    fn set_script(&self, script: Script) {
+        *self.state.borrow_mut() = CyberScreenState::new(script);
+    }
+
+    fn next_page(&self) {
+        let transition = self.state.borrow_mut().next_page();
+        self.animations
+            .borrow_mut()
+            .insert(transition.position(), transition);
+    }
+}
+
+glib::wrapper! {
+    pub struct CyberScreen(ObjectSubclass<CyberScreenPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl CyberScreen {
+    fn new(script: Script) -> Self {
+        let s: Self = Object::builder().build();
+        s.imp().set_script(script);
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, width, height| {
+                let now = Instant::now();
+                let _ = context.set_source_rgb(0., 0., 0.);
+                let _ = context.paint();
+
+                let pen = GlowPen::new(width, height, 2., 8., (0.7, 0., 1.));
+                AsymLineCutout {
+                    orientation: gtk::Orientation::Horizontal,
+                    start_x: 25.,
+                    start_y: height as f64 / 7.,
+                    start_length: width as f64 / 3.,
+                    cutout_length: width as f64 / 3. - 100.,
+                    height: 50.,
+                    end_length: width as f64 / 3. - 50.,
+                    invert: false,
+                }
+                .draw(&pen);
+                pen.stroke();
+
+                AsymLine {
+                    orientation: gtk::Orientation::Horizontal,
+                    start_x: width as f64 / 4.,
+                    start_y: height as f64 * 6. / 7.,
+                    start_length: width as f64 * 2. / 3. - 25.,
+                    height: 50.,
+                    end_length: 0.,
+                    invert: false,
+                }
+                .draw(&pen);
+                pen.stroke();
+
+                let tracery = pen.finish();
+                let _ = context.set_source(tracery);
+                let _ = context.paint();
+
+                let mut animations = s.imp().animations.borrow_mut();
+
+                let lr_margin = 50.;
+                let max_width = width as f64 - lr_margin * 2.;
+                let region_height = height as f64 / 5.;
+
+                if let Some(animation) = animations.get(&Position::Top) {
+                    let y = height as f64 * 1. / 5.;
+                    let surface = context
+                        .target()
+                        .create_for_rectangle(Rectangle::new(20., y, max_width, region_height))
+                        .unwrap();
+                    let ctx = Context::new(&surface).unwrap();
+                    animation.tick(now, &ctx, max_width);
+                }
+                if let Some(animation) = animations.get(&Position::Middle) {
+                    let y = height as f64 * 2. / 5.;
+                    let surface = context
+                        .target()
+                        .create_for_rectangle(Rectangle::new(20., y, max_width, region_height))
+                        .unwrap();
+                    let ctx = Context::new(&surface).unwrap();
+                    animation.tick(now, &ctx, max_width);
+                }
+                if let Some(animation) = animations.get(&Position::Bottom) {
+                    let y = height as f64 * 3. / 5.;
+                    let surface = context
+                        .target()
+                        .create_for_rectangle(Rectangle::new(20., y, max_width, region_height))
+                        .unwrap();
+                    let ctx = Context::new(&surface).unwrap();
+                    animation.tick(now, &ctx, max_width);
+                }
+            }
+        });
+
+        s
+    }
+
+    fn next_page(&self) {
+        self.imp().next_page();
+        self.queue_draw();
+    }
+}
+
+fn main() {
+    let script = Arc::new(RwLock::new(Script::default()));
+    let app = gtk::Application::builder()
+        .application_id("com.luminescent-dreams.cyberpunk-slideshow")
+        .build();
+
+    app.add_main_option(
+        "script",
+        glib::char::Char::from(b's'),
+        glib::OptionFlags::IN_MAIN,
+        glib::OptionArg::String,
+        "",
+        None,
+    );
+
+    app.connect_handle_local_options({
+        let script = script.clone();
+        move |_, options| {
+            if let Some(script_path) = options.lookup::<String>("script").unwrap() {
+                let mut script = script.write().unwrap();
+                *script = Script::from_file(Path::new(&script_path)).unwrap();
+                -1
+            } else {
+                1
+            }
+        }
+    });
+
+    app.connect_activate(move |app| {
+        let window = gtk::ApplicationWindow::new(app);
+        let screen = CyberScreen::new(script.read().unwrap().clone());
+
+        let events = EventControllerKey::new();
+
+        events.connect_key_released({
+            let app = app.clone();
+            let window = window.clone();
+            let screen = screen.clone();
+            move |_, key, _, _| {
+                let name = key
+                    .name()
+                    .map(|s| s.as_str().to_owned())
+                    .unwrap_or("".to_owned());
+                match name.as_ref() {
+                    "Right" => screen.next_page(),
+                    "q" => app.quit(),
+                    "Escape" => window.unfullscreen(),
+                    _ => {}
+                }
+            }
+        });
+
+        window.add_controller(events);
+
+        window.set_child(Some(&screen));
+        window.set_width_request(800);
+        window.set_height_request(600);
+        window.present();
+
+        window.connect_maximized_notify(|window| {
+            window.fullscreen();
+        });
+
+        let _ = glib::spawn_future_local({
+            let screen = screen.clone();
+            async move {
+                loop {
+                    screen.queue_draw();
+                    async_std::task::sleep(Duration::from_millis(1000 / FPS)).await;
+                }
+            }
+        });
+    });
+
+    app.run();
+}

cyberpunk-splash/Cargo.toml

@@ -7,7 +7,8 @@ license = "GPL-3.0-only"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-cairo-rs    = { version = "0.17" }
+cairo-rs    = { version = "0.18" }
-gio         = { version = "0.17" }
+cyberpunk   = { path = "../cyberpunk" }
-glib        = { version = "0.17" }
+gio         = { version = "0.18" }
-gtk         = { version = "0.6", package = "gtk4" }
+glib        = { version = "0.18" }
+gtk         = { version = "0.7", package = "gtk4" }

cyberpunk-splash/src/main.rs

@@ -2,6 +2,7 @@ use cairo::{
     Context, FontSlant, FontWeight, Format, ImageSurface, LineCap, LinearGradient, Pattern,
     TextExtents,
 };
+use cyberpunk::{AsymLine, AsymLineCutout, GlowPen, Pen, SlashMeter};
 use glib::Object;
 use gtk::{prelude::*, subclass::prelude::*, EventControllerKey};
 use std::{
@@ -171,7 +172,7 @@ impl SplashPrivate {
                 start_y: extents.height() + 10.,
                 start_length: 0.,
                 height: extents.height() / 2.,
-                total_length: extents.width() + extents.height() / 2.,
+                end_length: 0.,
                 invert: false,
             }
             .draw(&pen);
@@ -183,7 +184,7 @@ impl SplashPrivate {
                 start_y: extents.height() + 60.,
                 start_length: extents.width(),
                 height: extents.height() / 2.,
-                total_length: extents.width() + extents.height() / 2.,
+                end_length: 0.,
                 invert: false,
             }
             .draw(&pen);
@@ -208,7 +209,7 @@ impl SplashPrivate {
                     start_x: 20.,
                     start_y: center_y - 20. - title_height / 2.,
                     start_length,
-                    total_length: *self.width.borrow() as f64 - 120.,
+                    end_length: *self.width.borrow() as f64 - 120. - start_length,
                     cutout_length: title_width,
                     height: title_height,
                     invert: false,
@@ -243,7 +244,7 @@ impl SplashPrivate {
                 start_y: *self.height.borrow() as f64 / 2. + 100.,
                 start_length: 400.,
                 height: 50.,
-                total_length: 650.,
+                end_length: 0.,
                 invert: true,
             }
             .draw(&pen);
@@ -258,7 +259,7 @@ impl SplashPrivate {
                 start_y: *self.height.borrow() as f64 / 2. + 200.,
                 start_length: 600.,
                 height: 50.,
-                total_length: 650.,
+                end_length: 0.,
                 invert: false,
             }
             .draw(&pen);
@@ -419,212 +420,6 @@ impl Splash {
     }
 }
 
-struct AsymLineCutout {
-    orientation: gtk::Orientation,
-    start_x: f64,
-    start_y: f64,
-    start_length: f64,
-    total_length: f64,
-    cutout_length: f64,
-    height: f64,
-    invert: bool,
-}
-
-impl AsymLineCutout {
-    fn draw(&self, pen: &impl Pen) {
-        let dodge = if self.invert {
-            self.height
-        } else {
-            -self.height
-        };
-        match self.orientation {
-            gtk::Orientation::Horizontal => {
-                pen.move_to(self.start_x, self.start_y);
-                pen.line_to(self.start_x + self.start_length, self.start_y);
-                pen.line_to(
-                    self.start_x + self.start_length + self.height,
-                    self.start_y + dodge,
-                );
-                pen.line_to(
-                    self.start_x + self.start_length + self.height + self.cutout_length,
-                    self.start_y + dodge,
-                );
-                pen.line_to(
-                    self.start_x
-                        + self.start_length
-                        + self.height
-                        + self.cutout_length
-                        + (self.height / 2.),
-                    self.start_y + dodge / 2.,
-                );
-                pen.line_to(self.total_length, self.start_y + dodge / 2.);
-            }
-            gtk::Orientation::Vertical => {
-                pen.move_to(self.start_x, self.start_y);
-                pen.line_to(self.start_x, self.start_y + self.start_length);
-                pen.line_to(
-                    self.start_x + dodge,
-                    self.start_y + self.start_length + self.height,
-                );
-                pen.line_to(
-                    self.start_x + dodge,
-                    self.start_y + self.start_length + self.height + self.cutout_length,
-                );
-                pen.line_to(
-                    self.start_x + dodge / 2.,
-                    self.start_y
-                        + self.start_length
-                        + self.height
-                        + self.cutout_length
-                        + (self.height / 2.),
-                );
-                pen.line_to(self.start_x + dodge / 2., self.total_length);
-            }
-            _ => panic!("unknown orientation"),
-        }
-    }
-}
-
-struct AsymLine {
-    orientation: gtk::Orientation,
-    start_x: f64,
-    start_y: f64,
-    start_length: f64,
-    height: f64,
-    total_length: f64,
-    invert: bool,
-}
-
-impl AsymLine {
-    fn draw(&self, pen: &impl Pen) {
-        let dodge = if self.invert {
-            self.height
-        } else {
-            -self.height
-        };
-        match self.orientation {
-            gtk::Orientation::Horizontal => {
-                pen.move_to(self.start_x, self.start_y);
-                pen.line_to(self.start_x + self.start_length, self.start_y);
-                pen.line_to(
-                    self.start_x + self.start_length + self.height,
-                    self.start_y + dodge,
-                );
-                pen.line_to(self.start_x + self.total_length, self.start_y + dodge);
-            }
-            gtk::Orientation::Vertical => {}
-            _ => panic!("unknown orientation"),
-        }
-    }
-}
-
-struct SlashMeter {
-    orientation: gtk::Orientation,
-    start_x: f64,
-    start_y: f64,
-    count: u8,
-    fill_count: u8,
-    height: f64,
-    length: f64,
-}
-
-impl SlashMeter {
-    fn draw(&self, context: &Context) {
-        match self.orientation {
-            gtk::Orientation::Horizontal => {
-                let angle: f64 = 0.8;
-                let run = self.height / angle.tan();
-                let width = self.length / (self.count as f64 * 2.);
-
-                for c in 0..self.count {
-                    context.set_line_width(1.);
-
-                    let start_x = self.start_x + c as f64 * width * 2.;
-                    context.move_to(start_x, self.start_y);
-                    context.line_to(start_x + run, self.start_y - self.height);
-                    context.line_to(start_x + run + width, self.start_y - self.height);
-                    context.line_to(start_x + width, self.start_y);
-                    context.line_to(start_x, self.start_y);
-                    if c < self.fill_count {
-                        let _ = context.fill();
-                    } else {
-                        let _ = context.stroke();
-                    }
-                }
-            }
-            gtk::Orientation::Vertical => {}
-            _ => panic!("unknown orientation"),
-        }
-    }
-}
-
-trait Pen {
-    fn move_to(&self, x: f64, y: f64);
-    fn line_to(&self, x: f64, y: f64);
-    fn stroke(&self);
-
-    fn finish(self) -> Pattern;
-}
-
-struct GlowPen {
-    blur_context: Context,
-    draw_context: Context,
-}
-
-impl GlowPen {
-    fn new(
-        width: i32,
-        height: i32,
-        line_width: f64,
-        blur_line_width: f64,
-        color: (f64, f64, f64),
-    ) -> Self {
-        let blur_context =
-            Context::new(ImageSurface::create(Format::Rgb24, width, height).unwrap()).unwrap();
-        blur_context.set_line_width(blur_line_width);
-        blur_context.set_source_rgba(color.0, color.1, color.2, 0.5);
-        blur_context.push_group();
-        blur_context.set_line_cap(LineCap::Round);
-
-        let draw_context =
-            Context::new(ImageSurface::create(Format::Rgb24, width, height).unwrap()).unwrap();
-        draw_context.set_line_width(line_width);
-        draw_context.set_source_rgb(color.0, color.1, color.2);
-        draw_context.push_group();
-        draw_context.set_line_cap(LineCap::Round);
-
-        Self {
-            blur_context,
-            draw_context,
-        }
-    }
-}
-
-impl Pen for GlowPen {
-    fn move_to(&self, x: f64, y: f64) {
-        self.blur_context.move_to(x, y);
-        self.draw_context.move_to(x, y);
-    }
-
-    fn line_to(&self, x: f64, y: f64) {
-        self.blur_context.line_to(x, y);
-        self.draw_context.line_to(x, y);
-    }
-
-    fn stroke(&self) {
-        self.blur_context.stroke().expect("to draw the blur line");
-        self.draw_context
-            .stroke()
-            .expect("to draw the regular line");
-    }
-
-    fn finish(self) -> Pattern {
-        let foreground = self.draw_context.pop_group().unwrap();
-        self.blur_context.set_source(foreground).unwrap();
-        self.blur_context.paint().unwrap();
-        self.blur_context.pop_group().unwrap()
-    }
-}
 
 fn main() {
     let app = gtk::Application::builder()
@@ -703,7 +498,7 @@ fn main() {
 
     app.connect_activate(move |app| {
         let (gtk_tx, gtk_rx) =
-            gtk::glib::MainContext::channel::<State>(gtk::glib::PRIORITY_DEFAULT);
+            gtk::glib::MainContext::channel::<State>(gtk::glib::Priority::DEFAULT);
 
         let window = gtk::ApplicationWindow::new(app);
         window.present();
@@ -736,7 +531,7 @@ fn main() {
 
         gtk_rx.attach(None, move |state| {
             splash.set_state(state);
-            Continue(true)
+            glib::ControlFlow::Continue
         });
 
         std::thread::spawn({

cyberpunk/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "cyberpunk"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cairo-rs    = { version = "0.18" }
+gio         = { version = "0.18" }
+glib        = { version = "0.18" }
+gtk         = { version = "0.7", package = "gtk4" }

cyberpunk/src/lib.rs

@@ -0,0 +1,301 @@
+use cairo::{
+    Context, FontSlant, FontWeight, Format, ImageSurface, LineCap, Pattern,
+    TextExtents,
+};
+
+pub struct AsymLineCutout {
+    pub orientation: gtk::Orientation,
+    pub start_x: f64,
+    pub start_y: f64,
+    pub start_length: f64,
+    pub cutout_length: f64,
+    pub end_length: f64,
+    pub height: f64,
+    pub invert: bool,
+}
+
+impl AsymLineCutout {
+    pub fn draw(&self, pen: &impl Pen) {
+        let dodge = if self.invert {
+            self.height
+        } else {
+            -self.height
+        };
+        match self.orientation {
+            gtk::Orientation::Horizontal => {
+                pen.move_to(self.start_x, self.start_y);
+                pen.line_to(self.start_x + self.start_length, self.start_y);
+                pen.line_to(
+                    self.start_x + self.start_length + self.height,
+                    self.start_y + dodge,
+                );
+                pen.line_to(
+                    self.start_x + self.start_length + self.height + self.cutout_length,
+                    self.start_y + dodge,
+                );
+                pen.line_to(
+                    self.start_x
+                        + self.start_length
+                        + self.height
+                        + self.cutout_length
+                        + (self.height / 2.),
+                    self.start_y + dodge / 2.,
+                );
+                pen.line_to(
+                    self.start_x
+                        + self.start_length
+                        + self.height
+                        + self.cutout_length
+                        + (self.height / 2.)
+                        + self.end_length,
+                    self.start_y + dodge / 2.,
+                );
+            }
+            gtk::Orientation::Vertical => {
+                pen.move_to(self.start_x, self.start_y);
+                pen.line_to(self.start_x, self.start_y + self.start_length);
+                pen.line_to(
+                    self.start_x + dodge,
+                    self.start_y + self.start_length + self.height,
+                );
+                pen.line_to(
+                    self.start_x + dodge,
+                    self.start_y + self.start_length + self.height + self.cutout_length,
+                );
+                pen.line_to(
+                    self.start_x + dodge / 2.,
+                    self.start_y
+                        + self.start_length
+                        + self.height
+                        + self.cutout_length
+                        + (self.height / 2.),
+                );
+                pen.line_to(
+                    self.start_x + dodge / 2.,
+                    self.start_y
+                        + self.start_length
+                        + self.height
+                        + self.cutout_length
+                        + (self.height / 2.)
+                        + self.end_length,
+                );
+            }
+            _ => panic!("unknown orientation"),
+        }
+    }
+}
+
+// Represents an asymetrical line that starts at one location, then a 45-degree angle and then
+// another line afterwards.
+pub struct AsymLine {
+    // Will this be drawn left-to-right or up-to-down?
+    pub orientation: gtk::Orientation,
+
+    // Starting address
+    pub start_x: f64,
+    pub start_y: f64,
+
+    // Length of the first segment
+    pub start_length: f64,
+
+    // Height to dodge over to the next section
+    pub height: f64,
+
+    // Total length of the entire line.
+    pub end_length: f64,
+
+    // When normal, the angle dodge is upwards. When inverted, the angle dodge is downwards.
+    pub invert: bool,
+}
+
+impl AsymLine {
+    pub fn draw(&self, pen: &impl Pen) {
+        let dodge = if self.invert {
+            self.height
+        } else {
+            -self.height
+        };
+        match self.orientation {
+            gtk::Orientation::Horizontal => {
+                pen.move_to(self.start_x, self.start_y);
+                pen.line_to(self.start_x + self.start_length, self.start_y);
+                pen.line_to(
+                    self.start_x + self.start_length + self.height,
+                    self.start_y + dodge,
+                );
+                pen.line_to(
+                    self.start_x + self.start_length + self.height + self.end_length,
+                    self.start_y + dodge,
+                );
+            }
+            gtk::Orientation::Vertical => {}
+            _ => panic!("unknown orientation"),
+        }
+    }
+}
+
+pub struct SlashMeter {
+    pub orientation: gtk::Orientation,
+    pub start_x: f64,
+    pub start_y: f64,
+    pub count: u8,
+    pub fill_count: u8,
+    pub height: f64,
+    pub length: f64,
+}
+
+impl SlashMeter {
+    pub fn draw(&self, context: &Context) {
+        match self.orientation {
+            gtk::Orientation::Horizontal => {
+                let angle: f64 = 0.8;
+                let run = self.height / angle.tan();
+                let width = self.length / (self.count as f64 * 2.);
+
+                for c in 0..self.count {
+                    context.set_line_width(1.);
+
+                    let start_x = self.start_x + c as f64 * width * 2.;
+                    context.move_to(start_x, self.start_y);
+                    context.line_to(start_x + run, self.start_y - self.height);
+                    context.line_to(start_x + run + width, self.start_y - self.height);
+                    context.line_to(start_x + width, self.start_y);
+                    context.line_to(start_x, self.start_y);
+                    if c < self.fill_count {
+                        let _ = context.fill();
+                    } else {
+                        let _ = context.stroke();
+                    }
+                }
+            }
+            gtk::Orientation::Vertical => {}
+            _ => panic!("unknown orientation"),
+        }
+    }
+}
+
+/// Represents a pen for drawing a pattern. This is good for complex patterns that may require
+/// multiple identical steps.
+pub trait Pen {
+    /// Move the pen to a location.
+    fn move_to(&self, x: f64, y: f64);
+
+    /// Draw a line from the current location to the specified destination.
+    fn line_to(&self, x: f64, y: f64);
+
+    /// Instantiate the line.
+    fn stroke(&self);
+
+    /// Convert all of the drawing into a pattern that can be painted to a drawing context.
+    fn finish(self) -> Pattern;
+}
+
+pub struct GlowPen {
+    blur_context: Context,
+    draw_context: Context,
+}
+
+impl GlowPen {
+    pub fn new(
+        width: i32,
+        height: i32,
+        line_width: f64,
+        blur_line_width: f64,
+        color: (f64, f64, f64),
+    ) -> Self {
+        let blur_context =
+            Context::new(ImageSurface::create(Format::Rgb24, width, height).unwrap()).unwrap();
+        blur_context.set_line_width(blur_line_width);
+        blur_context.set_source_rgba(color.0, color.1, color.2, 0.5);
+        blur_context.push_group();
+        blur_context.set_line_cap(LineCap::Round);
+
+        let draw_context =
+            Context::new(ImageSurface::create(Format::Rgb24, width, height).unwrap()).unwrap();
+        draw_context.set_line_width(line_width);
+        draw_context.set_source_rgb(color.0, color.1, color.2);
+        draw_context.push_group();
+        draw_context.set_line_cap(LineCap::Round);
+
+        Self {
+            blur_context,
+            draw_context,
+        }
+    }
+}
+
+impl Pen for GlowPen {
+    fn move_to(&self, x: f64, y: f64) {
+        self.blur_context.move_to(x, y);
+        self.draw_context.move_to(x, y);
+    }
+
+    fn line_to(&self, x: f64, y: f64) {
+        self.blur_context.line_to(x, y);
+        self.draw_context.line_to(x, y);
+    }
+
+    fn stroke(&self) {
+        self.blur_context.stroke().expect("to draw the blur line");
+        self.draw_context
+            .stroke()
+            .expect("to draw the regular line");
+    }
+
+    fn finish(self) -> Pattern {
+        let foreground = self.draw_context.pop_group().unwrap();
+        self.blur_context.set_source(foreground).unwrap();
+        self.blur_context.paint().unwrap();
+        self.blur_context.pop_group().unwrap()
+    }
+}
+
+pub struct Text<'a> {
+    content: Vec<String>,
+    context: &'a Context,
+}
+
+impl<'a> Text<'a> {
+    pub fn new(content: String, context: &'a Context, size: f64, width: f64) -> Self {
+        context.select_font_face("Alegreya Sans SC", FontSlant::Normal, FontWeight::Bold);
+        context.set_font_size(size);
+
+        let lines = word_wrap(content, context, width);
+
+        Self { content: lines, context }
+    }
+
+    pub fn extents(&self) -> TextExtents {
+        self.context.text_extents(&self.content[0]).unwrap()
+    }
+
+    pub fn draw(&self) {
+        let mut baseline = 0.;
+        for line in self.content.iter() {
+            baseline += self.context.text_extents(line).unwrap().height() + 10.;
+            self.context.move_to(0., baseline);
+            let _ = self.context.show_text(&line);
+        }
+    }
+}
+
+fn word_wrap(content: String, context: &Context, max_width: f64) -> Vec<String> {
+    let mut lines = vec![];
+    let words: Vec<&str> = content.split_whitespace().collect();
+    let mut start: usize = 0;
+    let mut line = String::new();
+
+    for idx in 0..words.len() + 1 {
+        line = words[start..idx].join(" ");
+        let extents = context.text_extents(&line).unwrap();
+        if extents.width() > max_width {
+            let line = words[start..idx-1].join(" ");
+            start = idx-1;
+            lines.push(line.clone());
+        }
+    }
+    if line.len() > 0 {
+        lines.push(line);
+    }
+    lines
+}

dashboard/Cargo.toml

@@ -1,32 +1,31 @@
 [package]
 name = "dashboard"
-version = "0.1.1"
+version = "0.1.3"
 edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-adw                 = { version = "0.4", package = "libadwaita", features = [ "v1_2" ] }
+adw                 = { version = "0.5", package = "libadwaita", features = [ "v1_2" ] }
-cairo-rs            = { version = "0.17" }
+async-std           = { version = "1.13" }
+cairo-rs            = { version = "0.18" }
 chrono              = { version = "0.4", features = ["serde"] }
 fluent-ergonomics   = { path = "../fluent-ergonomics/" }
 fluent              = { version = "0.16" }
 futures             = { version = "0.3" }
 geo-types           = { path = "../geo-types/" }
-gio                 = { version = "0.17" }
+gio                 = { version = "0.18" }
-glib                = { version = "0.17" }
+glib                = { version = "0.18" }
-gdk                 = { version = "0.6", package = "gdk4" }
+gdk                 = { version = "0.7", package = "gdk4" }
-gtk                 = { version = "0.6", package = "gtk4" }
+gtk                 = { version = "0.7", package = "gtk4" }
-ifc                 = { path = "../ifc/" }
 lazy_static         = { version = "1.4" }
 memorycache         = { path = "../memorycache/" }
 reqwest             = { version = "0.11", features = ["json"] }
-serde_derive        = { version = "1" }
 serde_json          = { version = "1" }
-serde               = { version = "1" }
+serde               = { version = "1", features = [ "derive" ] }
 tokio               = { version = "1", features = ["full"] }
 unic-langid         = { version = "0.9" }
 
 [build-dependencies]
-glib-build-tools = "0.16"
+glib-build-tools = "0.18"
 

dashboard/build.rs

@@ -1,7 +1,7 @@
 fn main() {
     glib_build_tools::compile_resources(
-        "resources",
+        &["resources"],
-        "resources/gresources.xml",
+        "gresources.xml",
         "com.luminescent-dreams.dashboard.gresource",
     );
 }

dashboard/src/app_window.rs

@@ -41,7 +41,10 @@ impl ApplicationWindow {
             .build();
 
         let date_label = Date::default();
-        layout.append(&date_label);
+        let header = adw::HeaderBar::builder()
+            .title_widget(&date_label)
+            .build();
+        layout.append(&header);
 
         let events = Events::default();
         layout.append(&events);

dashboard/src/components/date.rs

@@ -1,20 +1,19 @@
-use chrono::Datelike;
-use glib::Object;
-use gtk::{prelude::*, subclass::prelude::*};
-use ifc::IFC;
 use std::{cell::RefCell, rc::Rc};
 
+use chrono::NaiveDate;
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
 pub struct DatePrivate {
-    date: Rc<RefCell<IFC>>,
+    date: Rc<RefCell<NaiveDate>>,
     label: Rc<RefCell<gtk::Label>>,
 }
 
 impl Default for DatePrivate {
     fn default() -> Self {
+        let date = chrono::Local::now().date_naive();
         Self {
-            date: Rc::new(RefCell::new(IFC::from(
+            date: Rc::new(RefCell::new(date)),
-                chrono::Local::now().date_naive().with_year(12023).unwrap(),
-            ))),
             label: Rc::new(RefCell::new(gtk::Label::new(None))),
         }
     }
@@ -51,19 +50,16 @@ impl Default for Date {
 }
 
 impl Date {
-    pub fn update_date(&self, date: IFC) {
+    pub fn update_date(&self, date: NaiveDate) {
         *self.imp().date.borrow_mut() = date;
         self.redraw();
     }
 
     fn redraw(&self) {
-        let date = self.imp().date.borrow().clone();
+        let date = self.imp().date.borrow();
-        self.imp().label.borrow_mut().set_text(&format!(
+        self.imp()
-            "{:?}, {:?} {}, {}",
+            .label
-            date.weekday(),
+            .borrow_mut()
-            date.month(),
+            .set_text(&date.format("%Y %B %d").to_string());
-            date.day(),
-            date.year()
-        ));
     }
 }

dashboard/src/components/events.rs

@@ -4,7 +4,6 @@ use crate::{
 };
 use glib::Object;
 use gtk::{prelude::*, subclass::prelude::*};
-use ifc::IFC;
 
 /*
 #[derive(PartialEq)]
@@ -59,19 +58,19 @@ impl Events {
     pub fn set_events(&self, events: YearlyEvents, next_event: solstices::Event) {
         self.imp()
             .spring_equinox
-            .update_date(IFC::from(events.spring_equinox.date_naive()));
+            .update_date(events.spring_equinox.date_naive());
 
         self.imp()
             .summer_solstice
-            .update_date(IFC::from(events.summer_solstice.date_naive()));
+            .update_date(events.summer_solstice.date_naive());
 
         self.imp()
             .autumn_equinox
-            .update_date(IFC::from(events.autumn_equinox.date_naive()));
+            .update_date(events.autumn_equinox.date_naive());
 
         self.imp()
             .winter_solstice
-            .update_date(IFC::from(events.winter_solstice.date_naive()));
+            .update_date(events.winter_solstice.date_naive());
 
         self.imp().spring_equinox.remove_css_class("highlight");
         self.imp().summer_solstice.remove_css_class("highlight");

dashboard/src/main.rs

@@ -1,13 +1,13 @@
-use chrono::{Datelike, Local, Utc};
-use geo_types::{Latitude, Longitude};
-use glib::Sender;
-use gtk::prelude::*;
-use ifc::IFC;
 use std::{
     env,
     sync::{Arc, RwLock},
 };
 
+use async_std::channel::Sender;
+use chrono::{Datelike, Local, Utc};
+use geo_types::{Latitude, Longitude};
+use gtk::prelude::*;
+
 mod app_window;
 use app_window::ApplicationWindow;
 
@@ -102,14 +102,17 @@ pub fn main() {
 
                 let now = Local::now();
                 let state = State {
-                    date: IFC::from(now.date_naive().with_year(12023).unwrap()),
+                    date: now.date_naive(),
                     next_event: EVENTS.next_event(now.with_timezone(&Utc)).unwrap(),
                     events: EVENTS.yearly_events(now.year()).unwrap(),
                     transit: Some(transit),
                 };
 
-                if let Some(ref gtk_tx) = *core.tx.read().unwrap() {
+                let gtk_tx = core.tx.read().unwrap().clone();
-                    let _ = gtk_tx.send(Message::Refresh(state.clone()));
+
+                if let Some(gtk_tx) = gtk_tx {
+                    let state = state.clone();
+                    let _ = gtk_tx.send(Message::Refresh(state)).await;
                     std::thread::sleep(std::time::Duration::from_secs(60));
                 } else {
                     std::thread::sleep(std::time::Duration::from_secs(1));
@@ -119,21 +122,17 @@ pub fn main() {
     });
 
     app.connect_activate(move |app| {
-        let (gtk_tx, gtk_rx) =
+        let (gtk_tx, gtk_rx) = async_std::channel::unbounded();
-            gtk::glib::MainContext::channel::<Message>(gtk::glib::PRIORITY_DEFAULT);
 
         *core.tx.write().unwrap() = Some(gtk_tx);
 
         let window = ApplicationWindow::new(app);
         window.window.present();
 
-        gtk_rx.attach(None, {
+        glib::spawn_future_local(async move {
-            let window = window.clone();
+            loop {
-            move |msg| {
+                let Message::Refresh(state) = gtk_rx.recv().await.unwrap();
-                let Message::Refresh(state) = msg;
+                window.update_state(state);
-                ApplicationWindow::update_state(&window, state);
-
-                Continue(true)
             }
         });
     });

dashboard/src/solstices.rs

@@ -1,7 +1,8 @@
+use std::collections::HashMap;
+
 use chrono::prelude::*;
 use lazy_static::lazy_static;
-use serde_derive::{Deserialize, Serialize};
+use serde::{Deserialize, Serialize};
-use std::collections::HashMap;
 
 // http://astropixels.com/ephemeris/soleq2001.html
 const SOLSTICE_TEXT: &str = "

dashboard/src/types.rs

@@ -2,11 +2,11 @@ use crate::{
     solstices::{Event, YearlyEvents},
     soluna_client::SunMoon,
 };
-use ifc::IFC;
+use chrono::NaiveDate;
 
 #[derive(Clone, Debug)]
 pub struct State {
-    pub date: IFC,
+    pub date: NaiveDate,
     pub next_event: Event,
     pub events: YearlyEvents,
     pub transit: Option<SunMoon>,

emseries/src/date_time_tz.rs

@@ -1,198 +0,0 @@
-/*
-Copyright 2020-2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
-
-This file is part of the Luminescent Dreams Tools.
-
-Luminescent Dreams Tools is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
-
-Luminescent Dreams Tools is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
-*/
-
-extern crate chrono;
-extern crate chrono_tz;
-
-use chrono::SecondsFormat;
-use chrono_tz::Etc::UTC;
-use serde::de::{self, Deserialize, Deserializer, Visitor};
-use serde::ser::{Serialize, Serializer};
-use std::{fmt, str::FromStr};
-
-/// This is a wrapper around date time objects, using timezones from the chroon-tz database and
-/// providing string representation and parsing of the form "<RFC3339> <Timezone Name>", i.e.,
-/// "2019-05-15T14:30:00Z US/Central". The to_string method, and serde serialization will
-/// produce a string of this format. The parser will accept an RFC3339-only string of the forms
-/// "2019-05-15T14:30:00Z", "2019-05-15T14:30:00+00:00", and also an "RFC3339 Timezone Name"
-/// string.
-///
-/// The function here is to generate as close to unambiguous time/date strings, (for earth's
-/// gravitational frame of reference), as possible. Clumping together the time, offset from UTC,
-/// and the named time zone allows future parsers to know the exact interpretation of the time in
-/// the frame of reference of the original recording.
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub struct DateTimeTz(pub chrono::DateTime<chrono_tz::Tz>);
-
-impl fmt::Display for DateTimeTz {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        if self.0.timezone() == UTC {
-            write!(f, "{}", self.0.to_rfc3339_opts(SecondsFormat::Secs, true))
-        } else {
-            write!(
-                f,
-                "{} {}",
-                self.0
-                    .with_timezone(&chrono_tz::Etc::UTC)
-                    .to_rfc3339_opts(SecondsFormat::Secs, true,),
-                self.0.timezone().name()
-            )
-        }
-    }
-}
-
-impl DateTimeTz {
-    pub fn map<F>(&self, f: F) -> DateTimeTz
-    where
-        F: FnOnce(chrono::DateTime<chrono_tz::Tz>) -> chrono::DateTime<chrono_tz::Tz>,
-    {
-        DateTimeTz(f(self.0))
-    }
-}
-
-impl std::str::FromStr for DateTimeTz {
-    type Err = chrono::ParseError;
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        let v: Vec<&str> = s.split_terminator(' ').collect();
-        if v.len() == 2 {
-            let tz = v[1].parse::<chrono_tz::Tz>().unwrap();
-            chrono::DateTime::parse_from_rfc3339(v[0]).map(|ts| DateTimeTz(ts.with_timezone(&tz)))
-        } else {
-            chrono::DateTime::parse_from_rfc3339(v[0]).map(|ts| DateTimeTz(ts.with_timezone(&UTC)))
-        }
-    }
-}
-
-impl From<chrono::DateTime<chrono_tz::Tz>> for DateTimeTz {
-    fn from(dt: chrono::DateTime<chrono_tz::Tz>) -> DateTimeTz {
-        DateTimeTz(dt)
-    }
-}
-
-struct DateTimeTzVisitor;
-
-impl<'de> Visitor<'de> for DateTimeTzVisitor {
-    type Value = DateTimeTz;
-
-    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter.write_str("a string date time representation that can be parsed")
-    }
-
-    fn visit_str<E: de::Error>(self, s: &str) -> Result<Self::Value, E> {
-        DateTimeTz::from_str(s).or(Err(E::custom(
-            "string is not a parsable datetime representation".to_owned(),
-        )))
-    }
-}
-
-impl Serialize for DateTimeTz {
-    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
-        serializer.serialize_str(&self.to_string())
-    }
-}
-
-impl<'de> Deserialize<'de> for DateTimeTz {
-    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
-        deserializer.deserialize_str(DateTimeTzVisitor)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    extern crate serde_json;
-
-    use super::*;
-    use chrono::TimeZone;
-    use chrono_tz::America::Phoenix;
-    use chrono_tz::Etc::UTC;
-    use chrono_tz::US::{Arizona, Central};
-    use std::str::FromStr;
-
-    #[test]
-    fn it_creates_timestamp_with_z() {
-        let t = DateTimeTz(UTC.with_ymd_and_hms(2019, 5, 15, 12, 0, 0).unwrap());
-        assert_eq!(t.to_string(), "2019-05-15T12:00:00Z");
-    }
-
-    #[test]
-    fn it_parses_utc_rfc3339_z() {
-        let t = DateTimeTz::from_str("2019-05-15T12:00:00Z").unwrap();
-        assert_eq!(
-            t,
-            DateTimeTz(UTC.with_ymd_and_hms(2019, 5, 15, 12, 0, 0).unwrap())
-        );
-    }
-
-    #[test]
-    fn it_parses_rfc3339_with_offset() {
-        let t = DateTimeTz::from_str("2019-05-15T12:00:00-06:00").unwrap();
-        assert_eq!(
-            t,
-            DateTimeTz(UTC.with_ymd_and_hms(2019, 5, 15, 18, 0, 0).unwrap())
-        );
-    }
-
-    #[test]
-    fn it_parses_rfc3339_with_tz() {
-        let t = DateTimeTz::from_str("2019-06-15T19:00:00Z US/Arizona").unwrap();
-        assert_eq!(
-            t,
-            DateTimeTz(UTC.with_ymd_and_hms(2019, 6, 15, 19, 0, 0).unwrap())
-        );
-        assert_eq!(
-            t,
-            DateTimeTz(Arizona.with_ymd_and_hms(2019, 6, 15, 12, 0, 0).unwrap())
-        );
-        assert_eq!(
-            t,
-            DateTimeTz(Central.with_ymd_and_hms(2019, 6, 15, 14, 0, 0).unwrap())
-        );
-        assert_eq!(t.to_string(), "2019-06-15T19:00:00Z US/Arizona");
-    }
-
-    #[derive(Serialize)]
-    struct DemoStruct {
-        id: String,
-        dt: DateTimeTz,
-    }
-
-    // I used Arizona here specifically because large parts of Arizona do not honor DST, and so
-    // that adds in more ambiguity of the -0700 offset with Pacific time.
-    #[test]
-    fn it_json_serializes() {
-        let t = DateTimeTz::from_str("2019-06-15T19:00:00Z America/Phoenix").unwrap();
-        assert_eq!(
-            serde_json::to_string(&t).unwrap(),
-            "\"2019-06-15T19:00:00Z America/Phoenix\""
-        );
-
-        let demo = DemoStruct {
-            id: String::from("abcdefg"),
-            dt: t,
-        };
-        assert_eq!(
-            serde_json::to_string(&demo).unwrap(),
-            "{\"id\":\"abcdefg\",\"dt\":\"2019-06-15T19:00:00Z America/Phoenix\"}"
-        );
-    }
-
-    #[test]
-    fn it_json_parses() {
-        let t =
-            serde_json::from_str::<DateTimeTz>("\"2019-06-15T19:00:00Z America/Phoenix\"").unwrap();
-        assert_eq!(
-            t,
-            DateTimeTz(Phoenix.with_ymd_and_hms(2019, 6, 15, 12, 0, 0).unwrap())
-        );
-    }
-}

emseries/src/lib.rs

@@ -71,11 +71,9 @@ extern crate thiserror;
 extern crate uuid;
 
 mod criteria;
-mod date_time_tz;
 mod series;
 mod types;
 
 pub use criteria::*;
-pub use date_time_tz::DateTimeTz;
 pub use series::Series;
-pub use types::{EmseriesReadError, EmseriesWriteError, Recordable, Timestamp, UniqueId};
+pub use types::{EmseriesReadError, EmseriesWriteError, Record, RecordId, Recordable, Timestamp};

emseries/src/series.rs

@@ -18,13 +18,51 @@ use serde::de::DeserializeOwned;
 use serde::ser::Serialize;
 use std::cmp::Ordering;
 use std::collections::HashMap;
+use std::convert::TryFrom;
 use std::fs::File;
 use std::fs::OpenOptions;
 use std::io::{BufRead, BufReader, LineWriter, Write};
 use std::iter::Iterator;
 
 use criteria::Criteria;
-use types::{EmseriesReadError, EmseriesWriteError, Record, Recordable, UniqueId};
+use types::{EmseriesReadError, EmseriesWriteError, Record, RecordId, Recordable};
+
+// A RecordOnDisk, a private data structure, is useful for handling all of the on-disk
+// representations of a record. Unlike [Record], this one can accept an empty data value to
+// represent that the data may have been deleted. This is not made public because, so far as the
+// user is concerned, any record in the system must have data associated with it.
+#[derive(Clone, Deserialize, Serialize)]
+struct RecordOnDisk<T: Clone + Recordable> {
+    id: RecordId,
+    data: Option<T>,
+}
+
+/*
+impl<T> FromStr for RecordOnDisk<T>
+where
+    T: Clone + Recordable + DeserializeOwned + Serialize,
+{
+    type Err = EmseriesReadError;
+
+    fn from_str(line: &str) -> Result<Self, Self::Err> {
+        serde_json::from_str(line).map_err(EmseriesReadError::JSONParseError)
+    }
+}
+*/
+
+impl<T: Clone + Recordable> TryFrom<RecordOnDisk<T>> for Record<T> {
+    type Error = EmseriesReadError;
+
+    fn try_from(disk_record: RecordOnDisk<T>) -> Result<Self, Self::Error> {
+        match disk_record.data {
+            Some(data) => Ok(Record {
+                id: disk_record.id,
+                data,
+            }),
+            None => Err(Self::Error::RecordDeleted(disk_record.id)),
+        }
+    }
+}
 
 /// An open time series database.
 ///
@@ -33,7 +71,7 @@ use types::{EmseriesReadError, EmseriesWriteError, Record, Recordable, UniqueId}
 pub struct Series<T: Clone + Recordable + DeserializeOwned + Serialize> {
     //path: String,
     writer: LineWriter<File>,
-    records: HashMap<UniqueId, T>,
+    records: HashMap<RecordId, Record<T>>,
 }
 
 impl<T> Series<T>
@@ -42,7 +80,7 @@ where
 {
     /// Open a time series database at the specified path. `path` is the full path and filename for
     /// the database.
-    pub fn open(path: &str) -> Result<Series<T>, EmseriesReadError> {
+    pub fn open<P: AsRef<std::path::Path>>(path: P) -> Result<Series<T>, EmseriesReadError> {
         let f = OpenOptions::new()
             .read(true)
             .append(true)
@@ -62,20 +100,18 @@ where
     }
 
     /// Load a file and return all of the records in it.
-    fn load_file(f: &File) -> Result<HashMap<UniqueId, T>, EmseriesReadError> {
+    fn load_file(f: &File) -> Result<HashMap<RecordId, Record<T>>, EmseriesReadError> {
-        let mut records: HashMap<UniqueId, T> = HashMap::new();
+        let mut records: HashMap<RecordId, Record<T>> = HashMap::new();
         let reader = BufReader::new(f);
         for line in reader.lines() {
             match line {
                 Ok(line_) => {
-                    /* Can't create a JSONParseError because I can't actually create the underlying error.
+                    match serde_json::from_str::<RecordOnDisk<T>>(line_.as_ref())
-                    fail_point!("parse-line", Err(Error::JSONParseError()))
+                        .map_err(EmseriesReadError::JSONParseError)
-                    */
+                        .and_then(Record::try_from)
-                    match line_.parse::<Record<T>>() {
+                    {
-                        Ok(record) => match record.data {
+                        Ok(record) => records.insert(record.id, record.clone()),
-                            Some(val) => records.insert(record.id.clone(), val),
+                        Err(EmseriesReadError::RecordDeleted(id)) => records.remove(&id),
-                            None => records.remove(&record.id.clone()),
-                        },
                         Err(err) => return Err(err),
                     };
                 }
@@ -87,18 +123,20 @@ where
 
     /// Put a new record into the database. A unique id will be assigned to the record and
     /// returned.
-    pub fn put(&mut self, entry: T) -> Result<UniqueId, EmseriesWriteError> {
+    pub fn put(&mut self, entry: T) -> Result<RecordId, EmseriesWriteError> {
-        let uuid = UniqueId::default();
+        let id = RecordId::default();
-        self.update(uuid.clone(), entry).map(|_| uuid)
+        let record = Record { id, data: entry };
+        self.update(record)?;
+        Ok(id)
     }
 
-    /// Update an existing record. The `UniqueId` of the record passed into this function must match
+    /// Update an existing record. The [RecordId] of the record passed into this function must match
-    /// the `UniqueId` of a record already in the database.
+    /// the [RecordId] of a record already in the database.
-    pub fn update(&mut self, uuid: UniqueId, entry: T) -> Result<(), EmseriesWriteError> {
+    pub fn update(&mut self, record: Record<T>) -> Result<(), EmseriesWriteError> {
-        self.records.insert(uuid.clone(), entry.clone());
+        self.records.insert(record.id, record.clone());
-        let write_res = match serde_json::to_string(&Record {
+        let write_res = match serde_json::to_string(&RecordOnDisk {
-            id: uuid,
+            id: record.id,
-            data: Some(entry),
+            data: Some(record.data),
         }) {
             Ok(rec_str) => self
                 .writer
@@ -118,14 +156,14 @@ where
     /// Future note: while this deletes a record from the view, it only adds an entry to the
     /// database that indicates `data: null`. If record histories ever become important, the record
     /// and its entire history (including this delete) will still be available.
-    pub fn delete(&mut self, uuid: &UniqueId) -> Result<(), EmseriesWriteError> {
+    pub fn delete(&mut self, uuid: &RecordId) -> Result<(), EmseriesWriteError> {
         if !self.records.contains_key(uuid) {
             return Ok(());
         };
         self.records.remove(uuid);
 
-        let rec: Record<T> = Record {
+        let rec: RecordOnDisk<T> = RecordOnDisk {
-            id: uuid.clone(),
+            id: *uuid,
             data: None,
         };
         match serde_json::to_string(&rec) {
@@ -138,8 +176,8 @@ where
     }
 
     /// Get all of the records in the database.
-    pub fn records(&self) -> impl Iterator<Item = (&UniqueId, &T)> {
+    pub fn records(&self) -> impl Iterator<Item = &Record<T>> {
-        self.records.iter()
+        self.records.values()
     }
 
     /*  The point of having Search is so that a lot of internal optimizations can happen once the
@@ -148,29 +186,29 @@ where
     pub fn search<'s>(
         &'s self,
         criteria: impl Criteria + 's,
-    ) -> impl Iterator<Item = (&'s UniqueId, &'s T)> + 's {
+    ) -> impl Iterator<Item = &'s Record<T>> + 's {
-        self.records().filter(move |&tr| criteria.apply(tr.1))
+        self.records().filter(move |&tr| criteria.apply(&tr.data))
     }
 
     /// Perform a search and sort the resulting records based on the comparison.
-    pub fn search_sorted<'s, C, CMP>(&'s self, criteria: C, compare: CMP) -> Vec<(&UniqueId, &T)>
+    pub fn search_sorted<'s, C, CMP>(&'s self, criteria: C, compare: CMP) -> Vec<&'s Record<T>>
     where
         C: Criteria + 's,
-        CMP: FnMut(&(&UniqueId, &T), &(&UniqueId, &T)) -> Ordering,
+        CMP: FnMut(&&Record<T>, &&Record<T>) -> Ordering,
     {
         let search_iter = self.search(criteria);
-        let mut records: Vec<(&UniqueId, &T)> = search_iter.collect();
+        let mut records: Vec<&Record<T>> = search_iter.collect();
         records.sort_by(compare);
         records
     }
 
     /// Get an exact record from the database based on unique id.
-    pub fn get(&self, uuid: &UniqueId) -> Option<T> {
+    pub fn get(&self, uuid: &RecordId) -> Option<Record<T>> {
         self.records.get(uuid).cloned()
     }
 
     /*
-    pub fn remove(&self, uuid: UniqueId) -> Result<(), EmseriesError> {
+    pub fn remove(&self, uuid: RecordId) -> Result<(), EmseriesError> {
         unimplemented!()
     }
     */

emseries/src/types.rs

@@ -10,10 +10,7 @@ Luminescent Dreams Tools is distributed in the hope that it will be useful, but
 You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
 */
 
-use chrono::NaiveDate;
+use chrono::{DateTime, FixedOffset, NaiveDate};
-use date_time_tz::DateTimeTz;
-use serde::de::DeserializeOwned;
-use serde::ser::Serialize;
 use std::{cmp::Ordering, fmt, io, str};
 use thiserror::Error;
 use uuid::Uuid;
@@ -28,6 +25,9 @@ pub enum EmseriesReadError {
     #[error("Error parsing JSON: {0}")]
     JSONParseError(serde_json::error::Error),
 
+    #[error("Record was deleted")]
+    RecordDeleted(RecordId),
+
     /// Indicates a general IO error
     #[error("IO Error: {0}")]
     IOError(io::Error),
@@ -44,17 +44,47 @@ pub enum EmseriesWriteError {
     JSONWriteError(serde_json::error::Error),
 }
 
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Eq)]
-#[serde(untagged)]
+/// A Timestamp, stored with reference to human reckoning. This could be either a Naive Date or a
+/// date and a time with a timezone. The idea of the "human reckoning" is that, no matter what
+/// timezone the record was created in, we want to group things based on the date that the human
+/// was perceiving at the time it was recorded.
 pub enum Timestamp {
-    DateTime(DateTimeTz),
+    DateTime(DateTime<FixedOffset>),
     Date(NaiveDate),
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum TimestampJS {
+    DateTime(String),
+    Date(String),
+}
+
+impl From<Timestamp> for TimestampJS {
+    fn from(s: Timestamp) -> TimestampJS {
+        match s {
+            Timestamp::DateTime(ts) => TimestampJS::DateTime(ts.to_rfc3339()),
+            Timestamp::Date(ts) => TimestampJS::Date(ts.to_string()),
+        }
+    }
+}
+
+impl From<TimestampJS> for Timestamp {
+    fn from(s: TimestampJS) -> Timestamp {
+        match s {
+            TimestampJS::DateTime(ts) => {
+                Timestamp::DateTime(DateTime::parse_from_rfc3339(&ts).unwrap())
+            }
+            TimestampJS::Date(ts) => Timestamp::Date(ts.parse::<NaiveDate>().unwrap()),
+        }
+    }
+}
+
 impl str::FromStr for Timestamp {
     type Err = chrono::ParseError;
     fn from_str(line: &str) -> Result<Self, Self::Err> {
-        DateTimeTz::from_str(line)
+        DateTime::parse_from_rfc3339(line)
             .map(Timestamp::DateTime)
             .or(NaiveDate::from_str(line).map(Timestamp::Date))
     }
@@ -70,25 +100,13 @@ impl Ord for Timestamp {
     fn cmp(&self, other: &Timestamp) -> Ordering {
         match (self, other) {
             (Timestamp::DateTime(dt1), Timestamp::DateTime(dt2)) => dt1.cmp(dt2),
-            (Timestamp::DateTime(dt1), Timestamp::Date(dt2)) => dt1.0.date_naive().cmp(dt2),
+            (Timestamp::DateTime(dt1), Timestamp::Date(dt2)) => dt1.date_naive().cmp(dt2),
-            (Timestamp::Date(dt1), Timestamp::DateTime(dt2)) => dt1.cmp(&dt2.0.date_naive()),
+            (Timestamp::Date(dt1), Timestamp::DateTime(dt2)) => dt1.cmp(&dt2.date_naive()),
             (Timestamp::Date(dt1), Timestamp::Date(dt2)) => dt1.cmp(dt2),
         }
     }
 }
 
-impl From<DateTimeTz> for Timestamp {
-    fn from(d: DateTimeTz) -> Self {
-        Self::DateTime(d)
-    }
-}
-
-impl From<NaiveDate> for Timestamp {
-    fn from(d: NaiveDate) -> Self {
-        Self::Date(d)
-    }
-}
-
 /// Any element to be put into the database needs to be Recordable. This is the common API that
 /// will aid in searching and later in indexing records.
 pub trait Recordable {
@@ -102,75 +120,88 @@ pub trait Recordable {
 /// Uniquely identifies a record.
 ///
 /// This is a wrapper around a basic uuid with some extra convenience methods.
-#[derive(Clone, Debug, Eq, Hash, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq, Deserialize, Serialize)]
-pub struct UniqueId(Uuid);
+pub struct RecordId(Uuid);
 
-impl Default for UniqueId {
+impl Default for RecordId {
     fn default() -> Self {
         Self(Uuid::new_v4())
     }
 }
 
-impl str::FromStr for UniqueId {
+impl str::FromStr for RecordId {
     type Err = EmseriesReadError;
 
-    /// Parse a UniqueId from a string. Raise UUIDParseError if the parsing fails.
+    /// Parse a RecordId from a string. Raise UUIDParseError if the parsing fails.
     fn from_str(val: &str) -> Result<Self, Self::Err> {
         Uuid::parse_str(val)
-            .map(UniqueId)
+            .map(RecordId)
             .map_err(EmseriesReadError::UUIDParseError)
     }
 }
 
-impl fmt::Display for UniqueId {
+impl fmt::Display for RecordId {
     /// Convert to a hyphenated string
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
         write!(f, "{}", self.0.to_hyphenated())
     }
 }
 
-/// Every record contains a unique ID and then the primary data, which itself must implementd the
+/// A record represents data that actually exists in the database. Users cannot make the record
-/// Recordable trait.
+/// directly, as the database will create them.
-#[derive(Clone, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
 pub struct Record<T: Clone + Recordable> {
-    pub id: UniqueId,
+    pub id: RecordId,
-    pub data: Option<T>,
+    pub data: T,
 }
 
-impl<T> str::FromStr for Record<T>
+impl<T: Clone + Recordable> Record<T> {
-where
+    pub fn date(&self) -> NaiveDate {
-    T: Clone + Recordable + DeserializeOwned + Serialize,
+        match self.data.timestamp() {
-{
+            Timestamp::DateTime(dt) => dt.date_naive(),
-    type Err = EmseriesReadError;
+            Timestamp::Date(dt) => dt,
+        }
+    }
 
-    fn from_str(line: &str) -> Result<Self, Self::Err> {
+    pub fn timestamp(&self) -> Timestamp {
-        serde_json::from_str(line).map_err(EmseriesReadError::JSONParseError)
+        self.data.timestamp()
+    }
+
+    pub fn map<Map, U>(self, map: Map) -> Record<U>
+    where
+        Map: Fn(T) -> U,
+        U: Clone + Recordable,
+    {
+        Record {
+            id: self.id,
+            data: map(self.data),
+        }
     }
 }
 
 #[cfg(test)]
 mod test {
     extern crate dimensioned;
+
     extern crate serde_json;
 
     use self::dimensioned::si::{Kilogram, KG};
     use super::*;
     use chrono::TimeZone;
-    use chrono_tz::{Etc::UTC, US::Central};
+    use chrono_tz::Etc::UTC;
-    use date_time_tz::DateTimeTz;
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     pub struct Weight(Kilogram<f64>);
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     pub struct WeightRecord {
-        pub date: Timestamp,
+        pub date: NaiveDate,
         pub weight: Weight,
     }
 
     impl Recordable for WeightRecord {
         fn timestamp(&self) -> Timestamp {
-            self.date.clone()
+            Timestamp::Date(self.date)
         }
 
         fn tags(&self) -> Vec<String> {
@@ -179,12 +210,14 @@ mod test {
     }
 
     #[test]
-    fn timestamp_parses_datetimetz_without_timezone() {
+    fn timestamp_parses_utc_time() {
         assert_eq!(
             "2003-11-10T06:00:00Z".parse::<Timestamp>().unwrap(),
-            Timestamp::DateTime(DateTimeTz(
+            Timestamp::DateTime(
-                UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0).unwrap()
+                UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0)
-            )),
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap())
+            ),
         );
     }
 
@@ -196,9 +229,10 @@ mod test {
         );
     }
 
-    #[test]
+    /*
+    #[ignore]
     fn v_alpha_serialization() {
-        const WEIGHT_ENTRY: &str = "{\"data\":{\"weight\":77.79109,\"date\":\"2003-11-10T06:00:00.000000000000Z\"},\"id\":\"3330c5b0-783f-4919-b2c4-8169c38f65ff\"}";
+        const WEIGHT_ENTRY: &str = "{\"data\":{\"weight\":77.79109},\"date\":\"2003-11-10\",\"id\":\"3330c5b0-783f-4919-b2c4-8169c38f65ff\"}";
 
         let rec: Record<WeightRecord> = WEIGHT_ENTRY
             .parse()
@@ -209,66 +243,64 @@ mod test {
         );
         assert_eq!(
             rec.data,
-            Some(WeightRecord {
+            WeightRecord {
-                date: Timestamp::DateTime(DateTimeTz(
+                date: NaiveDate::from_ymd_opt(2003, 11, 10).unwrap(),
-                    UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0).unwrap()
-                )),
                 weight: Weight(77.79109 * KG),
-            })
+            }
         );
     }
+    */
 
     #[test]
     fn serialization_output() {
         let rec = WeightRecord {
-            date: Timestamp::DateTime(DateTimeTz(
+            date: NaiveDate::from_ymd_opt(2003, 11, 10).unwrap(),
-                UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0).unwrap(),
-            )),
             weight: Weight(77.0 * KG),
         };
         assert_eq!(
             serde_json::to_string(&rec).unwrap(),
-            "{\"date\":\"2003-11-10T06:00:00Z\",\"weight\":77.0}"
+            "{\"date\":\"2003-11-10\",\"weight\":77.0}"
         );
 
         let rec2 = WeightRecord {
-            date: Timestamp::DateTime(
+            date: NaiveDate::from_ymd_opt(2003, 11, 10).unwrap(),
-                Central
-                    .with_ymd_and_hms(2003, 11, 10, 0, 0, 0)
-                    .unwrap()
-                    .into(),
-            ),
             weight: Weight(77.0 * KG),
         };
         assert_eq!(
             serde_json::to_string(&rec2).unwrap(),
-            "{\"date\":\"2003-11-10T06:00:00Z US/Central\",\"weight\":77.0}"
+            "{\"date\":\"2003-11-10\",\"weight\":77.0}"
         );
     }
 
     #[test]
     fn two_datetimes_can_be_compared() {
-        let time1 = Timestamp::DateTime(DateTimeTz(
+        let time1 = Timestamp::DateTime(
-            UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0).unwrap(),
+            UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0)
-        ));
+                .unwrap()
-        let time2 = Timestamp::DateTime(DateTimeTz(
+                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
-            UTC.with_ymd_and_hms(2003, 11, 11, 6, 0, 0).unwrap(),
+        );
-        ));
+        let time2 = Timestamp::DateTime(
+            UTC.with_ymd_and_hms(2003, 11, 11, 6, 0, 0)
+                .unwrap()
+                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+        );
         assert!(time1 < time2);
     }
 
     #[test]
     fn two_dates_can_be_compared() {
-        let time1 = Timestamp::Date(NaiveDate::from_ymd_opt(2003, 11, 10).unwrap());
+        let time1: Timestamp = Timestamp::Date(NaiveDate::from_ymd_opt(2003, 11, 10).unwrap());
-        let time2 = Timestamp::Date(NaiveDate::from_ymd_opt(2003, 11, 11).unwrap());
+        let time2: Timestamp = Timestamp::Date(NaiveDate::from_ymd_opt(2003, 11, 11).unwrap());
         assert!(time1 < time2);
     }
 
     #[test]
     fn datetime_and_date_can_be_compared() {
-        let time1 = Timestamp::DateTime(DateTimeTz(
+        let time1 = Timestamp::DateTime(
-            UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0).unwrap(),
+            UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0)
-        ));
+                .unwrap()
+                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+        );
         let time2 = Timestamp::Date(NaiveDate::from_ymd_opt(2003, 11, 11).unwrap());
         assert!(time1 < time2)
     }

emseries/tests/test_io.rs

@@ -20,7 +20,7 @@ extern crate emseries;
 
 #[cfg(test)]
 mod test {
-    use chrono::prelude::*;
+    use chrono::{prelude::*};
     use chrono_tz::Etc::UTC;
     use dimensioned::si::{Kilogram, Meter, Second, M, S};
 
@@ -34,7 +34,7 @@ mod test {
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     struct BikeTrip {
-        datetime: DateTimeTz,
+        datetime: DateTime<FixedOffset>,
         distance: Distance,
         duration: Duration,
         comments: String,
@@ -42,7 +42,7 @@ mod test {
 
     impl Recordable for BikeTrip {
         fn timestamp(&self) -> Timestamp {
-            self.datetime.clone().into()
+            Timestamp::DateTime(self.datetime)
         }
         fn tags(&self) -> Vec<String> {
             Vec::new()
@@ -52,31 +52,46 @@ mod test {
     fn mk_trips() -> [BikeTrip; 5] {
         [
             BikeTrip {
-                datetime: DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 29, 0, 0, 0).unwrap()),
+                datetime: UTC
+                    .with_ymd_and_hms(2011, 10, 29, 0, 0, 0)
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap()),
                 distance: Distance(58741.055 * M),
                 duration: Duration(11040.0 * S),
                 comments: String::from("long time ago"),
             },
             BikeTrip {
-                datetime: DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0).unwrap()),
+                datetime: UTC
+                    .with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap()),
                 distance: Distance(17702.0 * M),
                 duration: Duration(2880.0 * S),
                 comments: String::from("day 2"),
             },
             BikeTrip {
-                datetime: DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0).unwrap()),
+                datetime: UTC
+                    .with_ymd_and_hms(2011, 11, 02, 0, 0, 0)
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap()),
                 distance: Distance(41842.945 * M),
                 duration: Duration(7020.0 * S),
                 comments: String::from("Do Some Distance!"),
             },
             BikeTrip {
-                datetime: DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0).unwrap()),
+                datetime: UTC
+                    .with_ymd_and_hms(2011, 11, 04, 0, 0, 0)
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap()),
                 distance: Distance(34600.895 * M),
                 duration: Duration(5580.0 * S),
                 comments: String::from("I did a lot of distance back then"),
             },
             BikeTrip {
-                datetime: DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 05, 0, 0, 0).unwrap()),
+                datetime: UTC
+                    .with_ymd_and_hms(2011, 11, 05, 0, 0, 0)
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap()),
                 distance: Distance(6437.376 * M),
                 duration: Duration(960.0 * S),
                 comments: String::from("day 5"),
@@ -84,7 +99,7 @@ mod test {
         ]
     }
 
-    fn run_test<T>(test: T) -> ()
+    fn run_test<T>(test: T)
     where
         T: FnOnce(tempfile::TempPath),
     {
@@ -93,14 +108,14 @@ mod test {
         test(tmp_path);
     }
 
-    fn run<T>(test: T) -> ()
+    fn run<T>(test: T)
     where
         T: FnOnce(Series<BikeTrip>),
     {
         let tmp_file = tempfile::NamedTempFile::new().expect("temporary path created");
         let tmp_path = tmp_file.into_temp_path();
-        let ts: Series<BikeTrip> = Series::open(&tmp_path.to_string_lossy())
+        let ts: Series<BikeTrip> =
-            .expect("the time series should open correctly");
+            Series::open(&tmp_path).expect("the time series should open correctly");
         test(ts);
     }
 
@@ -122,11 +137,15 @@ mod test {
                 Some(tr) => {
                     assert_eq!(
                         tr.timestamp(),
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 29, 0, 0, 0).unwrap()).into()
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 29, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap())
+                        )
                     );
-                    assert_eq!(tr.duration, Duration(11040.0 * S));
+                    assert_eq!(tr.data.duration, Duration(11040.0 * S));
-                    assert_eq!(tr.comments, String::from("long time ago"));
+                    assert_eq!(tr.data.comments, String::from("long time ago"));
-                    assert_eq!(tr, trips[0]);
+                    assert_eq!(tr.data, trips[0]);
                 }
             }
         })
@@ -136,20 +155,22 @@ mod test {
     pub fn can_search_for_an_entry_with_exact_time() {
         run_test(|path| {
             let trips = mk_trips();
-            let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+            let mut ts: Series<BikeTrip> =
-                .expect("expect the time series to open correctly");
+                Series::open(&path).expect("expect the time series to open correctly");
 
             for trip in &trips[0..=4] {
                 ts.put(trip.clone()).expect("expect a successful put");
             }
 
-            let v: Vec<(&UniqueId, &BikeTrip)> = ts
+            let v: Vec<&Record<BikeTrip>> = ts
-                .search(exact_time(
+                .search(exact_time(Timestamp::DateTime(
-                    DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0).unwrap()).into(),
+                    UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
-                ))
+                        .unwrap()
+                        .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                )))
                 .collect();
             assert_eq!(v.len(), 1);
-            assert_eq!(*v[0].1, trips[1]);
+            assert_eq!(v[0].data, trips[1]);
         })
     }
 
@@ -157,26 +178,34 @@ mod test {
     pub fn can_get_entries_in_time_range() {
         run_test(|path| {
             let trips = mk_trips();
-            let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+            let mut ts: Series<BikeTrip> =
-                .expect("expect the time series to open correctly");
+                Series::open(&path).expect("expect the time series to open correctly");
 
             for trip in &trips[0..=4] {
                 ts.put(trip.clone()).expect("expect a successful put");
             }
 
-            let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
+            let v: Vec<&Record<BikeTrip>> = ts.search_sorted(
                 time_range(
-                    DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0).unwrap()).into(),
+                    Timestamp::DateTime(
+                        UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                            .unwrap()
+                            .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                    ),
                     true,
-                    DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0).unwrap()).into(),
+                    Timestamp::DateTime(
+                        UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0)
+                            .unwrap()
+                            .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                    ),
                     true,
                 ),
-                |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
+                |l, r| l.timestamp().cmp(&r.timestamp()),
             );
             assert_eq!(v.len(), 3);
-            assert_eq!(*v[0].1, trips[1]);
+            assert_eq!(v[0].data, trips[1]);
-            assert_eq!(*v[1].1, trips[2]);
+            assert_eq!(v[1].data, trips[2]);
-            assert_eq!(*v[2].1, trips[3]);
+            assert_eq!(v[2].data, trips[3]);
         })
     }
 
@@ -186,8 +215,8 @@ mod test {
             let trips = mk_trips();
 
             {
-                let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let mut ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
 
                 for trip in &trips[0..=4] {
                     ts.put(trip.clone()).expect("expect a successful put");
@@ -195,21 +224,29 @@ mod test {
             }
 
             {
-                let ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
-                let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
+                let v: Vec<&Record<BikeTrip>> = ts.search_sorted(
                     time_range(
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0).unwrap()).into(),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0).unwrap()).into(),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
                     ),
-                    |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
+                    |l, r| l.timestamp().cmp(&r.timestamp()),
                 );
                 assert_eq!(v.len(), 3);
-                assert_eq!(*v[0].1, trips[1]);
+                assert_eq!(v[0].data, trips[1]);
-                assert_eq!(*v[1].1, trips[2]);
+                assert_eq!(v[1].data, trips[2]);
-                assert_eq!(*v[2].1, trips[3]);
+                assert_eq!(v[2].data, trips[3]);
             }
         })
     }
@@ -220,8 +257,8 @@ mod test {
             let trips = mk_trips();
 
             {
-                let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let mut ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
 
                 for trip in &trips[0..=2] {
                     ts.put(trip.clone()).expect("expect a successful put");
@@ -229,41 +266,57 @@ mod test {
             }
 
             {
-                let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let mut ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
-                let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
+                let v: Vec<&Record<BikeTrip>> = ts.search_sorted(
                     time_range(
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0).unwrap()).into(),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0).unwrap()).into(),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 11, 04, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
                     ),
-                    |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
+                    |l, r| l.timestamp().cmp(&r.timestamp()),
                 );
                 assert_eq!(v.len(), 2);
-                assert_eq!(*v[0].1, trips[1]);
+                assert_eq!(v[0].data, trips[1]);
-                assert_eq!(*v[1].1, trips[2]);
+                assert_eq!(v[1].data, trips[2]);
                 ts.put(trips[3].clone()).expect("expect a successful put");
                 ts.put(trips[4].clone()).expect("expect a successful put");
             }
 
             {
-                let ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
-                let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
+                let v: Vec<&Record<BikeTrip>> = ts.search_sorted(
                     time_range(
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0).unwrap()).into(),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 05, 0, 0, 0).unwrap()).into(),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 11, 05, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
                     ),
-                    |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
+                    |l, r| l.timestamp().cmp(&r.timestamp()),
                 );
                 assert_eq!(v.len(), 4);
-                assert_eq!(*v[0].1, trips[1]);
+                assert_eq!(v[0].data, trips[1]);
-                assert_eq!(*v[1].1, trips[2]);
+                assert_eq!(v[1].data, trips[2]);
-                assert_eq!(*v[2].1, trips[3]);
+                assert_eq!(v[2].data, trips[3]);
-                assert_eq!(*v[3].1, trips[4]);
+                assert_eq!(v[3].data, trips[4]);
             }
         })
     }
@@ -273,8 +326,8 @@ mod test {
         run_test(|path| {
             let trips = mk_trips();
 
-            let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+            let mut ts: Series<BikeTrip> =
-                .expect("expect the time series to open correctly");
+                Series::open(&path).expect("expect the time series to open correctly");
 
             ts.put(trips[0].clone()).expect("expect a successful put");
             ts.put(trips[1].clone()).expect("expect a successful put");
@@ -283,9 +336,8 @@ mod test {
             match ts.get(&trip_id) {
                 None => assert!(false, "record not found"),
                 Some(mut trip) => {
-                    trip.distance = Distance(50000.0 * M);
+                    trip.data.distance = Distance(50000.0 * M);
-                    ts.update(trip_id.clone(), trip)
+                    ts.update(trip).expect("expect record to update");
-                        .expect("expect record to update");
                 }
             };
 
@@ -293,12 +345,12 @@ mod test {
                 None => assert!(false, "record not found"),
                 Some(trip) => {
                     assert_eq!(
-                        trip.datetime,
+                        trip.data.datetime,
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0).unwrap())
+                        UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0).unwrap()
                     );
-                    assert_eq!(trip.distance, Distance(50000.0 * M));
+                    assert_eq!(trip.data.distance, Distance(50000.0 * M));
-                    assert_eq!(trip.duration, Duration(7020.0 * S));
+                    assert_eq!(trip.data.duration, Duration(7020.0 * S));
-                    assert_eq!(trip.comments, String::from("Do Some Distance!"));
+                    assert_eq!(trip.data.comments, String::from("Do Some Distance!"));
                 }
             }
         })
@@ -310,8 +362,8 @@ mod test {
             let trips = mk_trips();
 
             {
-                let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let mut ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
 
                 ts.put(trips[0].clone()).expect("expect a successful put");
                 ts.put(trips[1].clone()).expect("expect a successful put");
@@ -320,32 +372,36 @@ mod test {
                 match ts.get(&trip_id) {
                     None => assert!(false, "record not found"),
                     Some(mut trip) => {
-                        trip.distance = Distance(50000.0 * M);
+                        trip.data.distance = Distance(50000.0 * M);
-                        ts.update(trip_id, trip).expect("expect record to update");
+                        ts.update(trip).expect("expect record to update");
                     }
                 };
             }
 
             {
-                let ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
 
-                let trips: Vec<(&UniqueId, &BikeTrip)> = ts.records().collect();
+                let trips: Vec<&Record<BikeTrip>> = ts.records().collect();
                 assert_eq!(trips.len(), 3);
 
-                let trips: Vec<(&UniqueId, &BikeTrip)> = ts
+                let trips: Vec<&Record<BikeTrip>> = ts
-                    .search(exact_time(
+                    .search(exact_time(Timestamp::DateTime(
-                        DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0).unwrap()).into(),
+                        UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0)
-                    ))
+                            .unwrap()
+                            .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                    )))
                     .collect();
                 assert_eq!(trips.len(), 1);
                 assert_eq!(
-                    trips[0].1.datetime,
+                    trips[0].data.datetime,
-                    DateTimeTz(UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0).unwrap())
+                    UTC.with_ymd_and_hms(2011, 11, 02, 0, 0, 0)
+                        .unwrap()
+                        .with_timezone(&FixedOffset::east_opt(0).unwrap())
                 );
-                assert_eq!(trips[0].1.distance, Distance(50000.0 * M));
+                assert_eq!(trips[0].data.distance, Distance(50000.0 * M));
-                assert_eq!(trips[0].1.duration, Duration(7020.0 * S));
+                assert_eq!(trips[0].data.duration, Duration(7020.0 * S));
-                assert_eq!(trips[0].1.comments, String::from("Do Some Distance!"));
+                assert_eq!(trips[0].data.comments, String::from("Do Some Distance!"));
             }
         })
     }
@@ -356,21 +412,21 @@ mod test {
             let trips = mk_trips();
 
             {
-                let mut ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let mut ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
                 let trip_id = ts.put(trips[0].clone()).expect("expect a successful put");
                 ts.put(trips[1].clone()).expect("expect a successful put");
                 ts.put(trips[2].clone()).expect("expect a successful put");
                 ts.delete(&trip_id).expect("successful delete");
 
-                let recs: Vec<(&UniqueId, &BikeTrip)> = ts.records().collect();
+                let recs: Vec<&Record<BikeTrip>> = ts.records().collect();
                 assert_eq!(recs.len(), 2);
             }
 
             {
-                let ts: Series<BikeTrip> = Series::open(&path.to_string_lossy())
+                let ts: Series<BikeTrip> =
-                    .expect("expect the time series to open correctly");
+                    Series::open(&path).expect("expect the time series to open correctly");
-                let recs: Vec<(&UniqueId, &BikeTrip)> = ts.records().collect();
+                let recs: Vec<&Record<BikeTrip>> = ts.records().collect();
                 assert_eq!(recs.len(), 2);
             }
         })
@@ -387,7 +443,7 @@ mod test {
 
     impl Recordable for WeightRecord {
         fn timestamp(&self) -> Timestamp {
-            self.date.into()
+            Timestamp::Date(self.date)
         }
 
         fn tags(&self) -> Vec<String> {

error-training/Cargo.toml

@@ -1,18 +0,0 @@
-[package]
-name = "error-training"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[lib]
-name = "error_training"
-path = "src/lib.rs"
-
-[[bin]]
-name = "error-training"
-path = "src/main.rs"
-
-[dependencies]
-thiserror = { version = "1" }
-result-extended = { path = "../result-extended" }

error-training/src/flow.rs

@@ -1,76 +0,0 @@
-//! Flow-style error handling is conceptually the same as sled-style, but with macros to help
-//! out with the data structures. The result of a Flow-able operation is Flow<Value,
-//! FatalError, Error>.
-
-use super::*;
-use ::result_extended::{error, fatal, ok, return_fatal, Result};
-use std::collections::HashMap;
-
-pub struct DB(HashMap<String, i8>);
-
-impl DB {
-    pub fn new(lst: Vec<(String, i8)>) -> Self {
-        Self(lst.into_iter().collect::<HashMap<String, i8>>())
-    }
-
-    /// Retrieve a value from the database. Throw a fatal error with the "fail" key, but
-    /// otherwise return either the value or DatabaseError::NotFound.
-    ///
-    /// ```rust
-    /// use error_training::{*, flow::*};
-    /// use ::result_extended::Result;
-    ///
-    /// let db = DB::new(vec![("a".to_owned(), 15), ("b".to_owned(), 0)]);
-    /// assert_eq!(db.get("fail"), Result::Fatal(FatalError::DatabaseCorruption));
-    /// assert_eq!(db.get("a"), Result::Ok(15));
-    /// assert_eq!(db.get("c"), Result::Err(DatabaseError::NotFound));
-    /// ```
-    pub fn get(&self, key: &str) -> Result<i8, DatabaseError, FatalError> {
-        if key == "fail" {
-            fatal(FatalError::DatabaseCorruption)
-        } else {
-            // Result::from(self.0.get(key).copied().ok_or(DatabaseError::NotFound))
-            self.0
-                .get(key)
-                .copied()
-                .ok_or(DatabaseError::NotFound)
-                .into()
-        }
-    }
-}
-
-fn op(val: i8) -> std::result::Result<i8, MathError> {
-    if val as i32 + 120_i32 > (i8::MAX as i32) {
-        Err(MathError::ExceedsMaxint)
-    } else {
-        Ok(val + 120)
-    }
-}
-
-/// This function exists to test several of the major cases. This is where I will figure
-/// out how to handle everything and also have clean code.
-/// ```rust
-/// use error_training::{*, flow::*};
-/// use ::result_extended::Result;
-///
-/// let db = DB::new(vec![("a".to_owned(), 15), ("b".to_owned(), 0)]);
-/// assert_eq!(run_op(&db, "a"), Result::Ok(i8::MAX));
-/// assert_eq!(run_op(&db, "b"), Result::Ok(120));
-/// assert_eq!(run_op(&db, "c"), Result::Ok(0));
-/// assert_eq!(run_op(&db, "fail"), Result::Fatal(FatalError::DatabaseCorruption));
-/// ```
-///
-/// I have defined this function such that a database miss becomes a 0 and no operation
-/// will be performed on it. Since that is the only database error that can occur, this
-/// function can only return a `MathError` or a `FatalError`.
-pub fn run_op(db: &DB, key: &str) -> Result<i8, MathError, FatalError> {
-    let res = match return_fatal!(db.get(key)) {
-        Err(DatabaseError::NotFound) => Ok(0),
-        Ok(val) => op(val),
-    };
-
-    Result::from(res).or_else(|err| match err {
-        MathError::ExceedsMaxint => ok(i8::MAX),
-        _ => error(err),
-    })
-}

error-training/src/lib.rs

@@ -1,51 +0,0 @@
-use thiserror::Error;
-
-pub mod flow;
-pub mod sled;
-
-#[derive(Clone, Debug, Error, PartialEq)]
-pub enum FatalError {
-    #[error("Database corruption detected")]
-    DatabaseCorruption,
-}
-
-impl ::result_extended::FatalError for FatalError {}
-
-#[derive(Clone, Debug, Error, PartialEq)]
-pub enum MathError {
-    #[error("divide by zero is not defined")]
-    DivideByZero,
-
-    #[error("result exceeds maxint")]
-    ExceedsMaxint,
-
-    #[error("result exceeds minint")]
-    ExceedsMinint,
-}
-
-#[derive(Clone, Debug, Error, PartialEq)]
-pub enum DatabaseError {
-    #[error("value not found")]
-    NotFound,
-}
-
-#[derive(Clone, Debug, Error, PartialEq)]
-pub enum OperationError {
-    #[error("database error occurred: {0}")]
-    DatabaseError(DatabaseError),
-
-    #[error("math error occurred: {0}")]
-    MathError(MathError),
-}
-
-impl From<DatabaseError> for OperationError {
-    fn from(err: DatabaseError) -> Self {
-        Self::DatabaseError(err)
-    }
-}
-
-impl From<MathError> for OperationError {
-    fn from(err: MathError) -> Self {
-        Self::MathError(err)
-    }
-}

error-training/src/main.rs

@@ -1,26 +0,0 @@
-//! Error handling practice.
-//!
-//! The purpose of this crate is to demonstrate error handling in a couple of different scenarios
-//! so that I have clear templates to refer when doing development, instead of hand-waving or
-//! putting error handling off into the unspecified future.
-//!
-//! I am going to demonstrate error handling in the style of [Error Handling in a
-//! Correctness-Critical Rust Project | sled-rs.github.io](https://sled.rs/errors.html) and in my
-//! reformulation of it using Flow.
-//!
-//! I will also test out additional libraries in the same scenarios:
-//!
-//! - anyhow
-//!
-//! A database exists with some numbers. Mathmatical calculations will be performed on those
-//! numbers. Some calculations are invalid and should fail. In some cases, those should be reported
-//! to the user, and in other cases those can be recovered. Sometimes a calculation needs to be
-//! performed on a value that doesn't exist, which is also a failure. However, sometimes, the
-//! database will detect corruption, wich is fatal and should terminate the "app".
-//!
-//! In these scenarios, the "app" is a top-level function which runs the scenario. This particular
-//! app should never crash, just show where crashes would happen.
-
-fn main() {
-    println!("Hello, world!");
-}

error-training/src/parser-recovery.rs

@@ -1,9 +0,0 @@
-//! Let's figure out a recovery mechanism in terms of a parser. For this example I'm going to
-//! assume an SGF parser in which a player's rank is specified in some non-standard, but still
-//! somewhat comprehensible, way.
-//!
-//! Correct: 5d
-//! Incorrect, but recoverable: 5 Dan
-//!
-//! In strict mode, the incorrect one would be rejected. In permissive mode, the incorrect one
-//! would be corrected. I don't know that this actually makes any sense in this context, though.

error-training/src/sled.rs

@@ -1,67 +0,0 @@
-//! Sled-style error handling is based on Result<Result<Value, LocalError>, FatalError>.
-//! FatalErrors do not get resolved. LocalErrors get bubbled up until they can be handled.
-
-use super::*;
-use std::collections::HashMap;
-
-pub struct DB(HashMap<String, i8>);
-
-impl DB {
-    pub fn new(lst: Vec<(String, i8)>) -> Self {
-        Self(lst.into_iter().collect::<HashMap<String, i8>>())
-    }
-
-    /// Retrieve a value from the database. Throw a fatal error with the "fail" key, but
-    /// otherwise return either the value or DatabaseError::NotFound.
-    ///
-    /// ```rust
-    /// use error_training::{*, sled::*};
-    ///
-    /// let db = DB::new(vec![("a".to_owned(), 15), ("b".to_owned(), 0)]);
-    /// assert_eq!(db.get("fail"), Err(FatalError::DatabaseCorruption));
-    /// assert_eq!(db.get("a"), Ok(Ok(15)));
-    /// assert_eq!(db.get("c"), Ok(Err(DatabaseError::NotFound)));
-    /// ```
-    pub fn get(&self, key: &str) -> Result<Result<i8, DatabaseError>, FatalError> {
-        if key == "fail" {
-            Err(FatalError::DatabaseCorruption)
-        } else {
-            Ok(self.0.get(key).copied().ok_or(DatabaseError::NotFound))
-        }
-    }
-}
-
-fn op(val: i8) -> Result<i8, MathError> {
-    if val as i32 + 120_i32 > (i8::MAX as i32) {
-        Err(MathError::ExceedsMaxint)
-    } else {
-        Ok(val + 120)
-    }
-}
-
-/// This function exists to test several of the major cases. This is where I will figure out
-/// how to handle everything and also have clean code.
-/// ```rust
-/// use error_training::{*, sled::*};
-///
-/// let db = DB::new(vec![("a".to_owned(), 15), ("b".to_owned(), 0)]);
-/// assert_eq!(run_op(&db, "a"), Ok(Ok(i8::MAX)));
-/// assert_eq!(run_op(&db, "b"), Ok(Ok(120)));
-/// assert_eq!(run_op(&db, "c"), Ok(Ok(0)));
-/// assert_eq!(run_op(&db, "fail"), Err(FatalError::DatabaseCorruption));
-/// ```
-///
-/// I have defined this function such that a database miss becomes a 0 and no operation will be
-/// performed on it. Since that is the only database error that can occur, this function can
-/// only return a `MathError` or a `FatalError`.
-pub fn run_op(db: &DB, key: &str) -> Result<Result<i8, MathError>, FatalError> {
-    let res = match db.get(key)? {
-        Err(DatabaseError::NotFound) => Ok(0),
-        Ok(val) => op(val),
-    };
-
-    Ok(res.or_else(|err| match err {
-        MathError::ExceedsMaxint => Ok(127),
-        err => Err(err),
-    }))
-}

file-service/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "file-service"
-version = "0.1.1"
+version = "0.2.0"
 authors = ["savanni@luminescent-dreams.com"]
 edition = "2018"
 
@@ -14,11 +14,10 @@ path = "src/lib.rs"
 name = "file-service"
 path = "src/main.rs"
 
-[[bin]]
+[target.auth-cli.dependencies]
-name = "auth-cli"
-path = "src/bin/cli.rs"
 
 [dependencies]
+authdb              = { path = "../authdb/" }
 base64ct            = { version = "1", features = [ "alloc" ] }
 build_html          = { version = "2" }
 bytes               = { version = "1" }
@@ -36,9 +35,8 @@ mime_guess          = "2.0.3"
 pretty_env_logger   = { version = "0.5" }
 serde_json          = "*"
 serde               = { version = "1.0", features = ["derive"] }
-sha2                = "0.10"
+sha2                = { version = "0.10" }
-sqlx                = { version = "0.7", features = [ "runtime-tokio", "sqlite" ] }
+thiserror           = { version = "1" }
-thiserror           = "1.0.20"
 tokio               = { version = "1", features = [ "full" ] }
 uuid                = { version = "0.4", features = [ "serde", "v4" ] }
 warp                = { version = "0.3" }

file-service/src/handlers.rs

@@ -87,7 +87,7 @@ pub async fn handle_auth(
     app: App,
     form: HashMap<String, String>,
 ) -> Result<http::Response<String>, Error> {
-    match form.get("token") {
+    match form.get("password") {
         Some(token) => match app.authenticate(AuthToken::from(token.clone())).await {
             Ok(Some(session_token)) => Response::builder()
                 .header("location", "/")
@@ -134,6 +134,25 @@ pub async fn handle_upload(
     }
 }
 
+pub async fn handle_delete(
+    app: App,
+    token: SessionToken,
+    id: FileId,
+) -> Result<http::Response<String>, Error> {
+    match app.validate_session(token).await {
+        Ok(Some(_)) => match app.delete_file(id).await {
+            Ok(_) => Response::builder()
+                .header("location", "/")
+                .status(StatusCode::SEE_OTHER)
+                .body("".to_owned()),
+            Err(_) => unimplemented!(),
+        },
+        _ => Response::builder()
+            .status(StatusCode::UNAUTHORIZED)
+            .body("".to_owned()),
+    }
+}
+
 fn serve_file<F>(
     info: FileInfo,
     file: F,

file-service/src/html.rs

@@ -74,7 +74,7 @@ impl Html for Form {
             None => "".to_owned(),
         };
         format!(
-            "<form action=\"{path}\" method=\"{method}\" {encoding}\n{elements}\n</form>\n",
+            "<form action=\"{path}\" method=\"{method}\" {encoding}>\n{elements}\n</form>\n",
             path = self.path,
             method = self.method,
             encoding = encoding,
@@ -137,11 +137,6 @@ impl Input {
         self
     }
 
-    pub fn with_value(mut self, val: &str) -> Self {
-        self.value = Some(val.to_owned());
-        self
-    }
-
     pub fn with_attributes<'a>(
         mut self,
         values: impl IntoIterator<Item = (&'a str, &'a str)>,
@@ -156,31 +151,6 @@ impl Input {
     }
 }
 
-#[derive(Clone, Debug)]
-pub struct Label {
-    target: String,
-    text: String,
-}
-
-impl Label {
-    pub fn new(target: &str, text: &str) -> Self {
-        Self {
-            target: target.to_owned(),
-            text: text.to_owned(),
-        }
-    }
-}
-
-impl Html for Label {
-    fn to_html_string(&self) -> String {
-        format!(
-            "<label for=\"{target}\">{text}</label>",
-            target = self.target,
-            text = self.text
-        )
-    }
-}
-
 #[derive(Clone, Debug)]
 pub struct Button {
     ty: Option<String>,
@@ -236,41 +206,3 @@ impl Html for Button {
         )
     }
 }
-
-#[derive(Clone, Debug)]
-pub struct Image {
-    path: String,
-    attributes: Attributes,
-}
-
-impl Image {
-    pub fn new(path: &str) -> Self {
-        Self {
-            path: path.to_owned(),
-            attributes: Attributes::default(),
-        }
-    }
-
-    pub fn with_attributes<'a>(
-        mut self,
-        values: impl IntoIterator<Item = (&'a str, &'a str)>,
-    ) -> Self {
-        self.attributes = Attributes(
-            values
-                .into_iter()
-                .map(|(a, b)| (a.to_owned(), b.to_owned()))
-                .collect::<Vec<(String, String)>>(),
-        );
-        self
-    }
-}
-
-impl Html for Image {
-    fn to_html_string(&self) -> String {
-        format!(
-            "<img src={path} {attrs} />",
-            path = self.path,
-            attrs = self.attributes.to_string()
-        )
-    }
-}

file-service/src/lib.rs

@@ -1,6 +1,5 @@
 mod store;
 
 pub use store::{
-    AuthDB, AuthError, AuthToken, FileHandle, FileId, FileInfo, ReadFileError, SessionToken, Store,
+    DeleteFileError, FileHandle, FileId, FileInfo, ReadFileError, Store, WriteFileError,
-    Username, WriteFileError,
 };

file-service/src/main.rs

@@ -1,7 +1,7 @@
 extern crate log;
 
 use cookie::Cookie;
-use handlers::{file, handle_auth, handle_css, handle_upload, thumbnail};
+use handlers::{file, handle_auth, handle_css, handle_delete, handle_upload, thumbnail};
 use std::{
     collections::{HashMap, HashSet},
     convert::Infallible,
@@ -18,9 +18,10 @@ mod pages;
 
 const MAX_UPLOAD: u64 = 15 * 1024 * 1024;
 
-pub use file_service::{
+use authdb::{AuthDB, AuthError, AuthToken, SessionToken, Username};
-    AuthDB, AuthError, AuthToken, FileHandle, FileId, FileInfo, ReadFileError, SessionToken, Store,
+
-    Username, WriteFileError,
+use file_service::{
+    DeleteFileError, FileHandle, FileId, FileInfo, ReadFileError, Store, WriteFileError,
 };
 pub use handlers::handle_index;
 
@@ -64,6 +65,11 @@ impl App {
     ) -> Result<FileHandle, WriteFileError> {
         self.store.write().await.add_file(filename, content)
     }
+
+    pub async fn delete_file(&self, id: FileId) -> Result<(), DeleteFileError> {
+        self.store.write().await.delete_file(&id)?;
+        Ok(())
+    }
 }
 
 fn with_app(app: App) -> impl Filter<Extract = (App,), Error = Infallible> + Clone {
@@ -134,6 +140,12 @@ pub async fn main() {
         .and(warp::multipart::form().max_length(MAX_UPLOAD))
         .then(handle_upload);
 
+    let delete_via_form = warp::path!("delete" / String)
+        .and(warp::post())
+        .and(with_app(app.clone()))
+        .and(with_session())
+        .then(|id, app, token| handle_delete(app, token, FileId::from(id)));
+
     let thumbnail = warp::path!(String / "tn")
         .and(warp::get())
         .and(warp::header::optional::<String>("if-none-match"))
@@ -150,6 +162,7 @@ pub async fn main() {
         root.or(styles)
             .or(auth)
             .or(upload_via_form)
+            .or(delete_via_form)
             .or(thumbnail)
             .or(file)
             .with(log),

file-service/src/pages.rs

@@ -1,35 +1,38 @@
 use crate::html::*;
 use build_html::{self, Container, ContainerType, Html, HtmlContainer};
-use file_service::{FileHandle, FileId, ReadFileError};
+use file_service::{FileHandle, FileInfo, ReadFileError};
 
 pub fn auth(_message: Option<String>) -> build_html::HtmlPage {
     build_html::HtmlPage::new()
-        .with_title("Authentication")
+        .with_title("Sign In")
         .with_stylesheet("/css")
         .with_container(
             Container::new(ContainerType::Div)
                 .with_attributes([("class", "authentication-page")])
+                .with_container(auth_form()),
+        )
+}
+
+fn auth_form() -> Container {
+    Container::default()
+        .with_attributes([("class", "card authentication-form")])
+        .with_html(
+            Form::new()
+                .with_path("/auth")
+                .with_method("post")
                 .with_container(
                     Container::new(ContainerType::Div)
-                        .with_attributes([("class", "card authentication-form")])
                         .with_html(
-                            Form::new()
+                            Input::new("password", "password")
-                                .with_path("/auth")
+                                .with_id("for-token-input")
-                                .with_method("post")
+                                .with_attributes([
-                                .with_container(
+                                    ("size", "50"),
-                                    Container::new(ContainerType::Div)
+                                    ("class", "authentication-form__input"),
-                                        .with_attributes([("class", "authentication-form__label")])
+                                ]),
-                                        .with_html(Label::new("for-token-input", "Authentication")),
+                        )
-                                )
+                        .with_html(
-                                .with_container(
+                            Button::new("Sign In")
-                                    Container::new(ContainerType::Div)
+                                .with_attributes([("class", "authentication-form__button")]),
-                                        .with_attributes([("class", "authentication-form__input")])
-                                        .with_html(
-                                            Input::new("token", "token")
-                                                .with_id("for-token-input")
-                                                .with_attributes([("size", "50")]),
-                                        ),
-                                ),
                         ),
                 ),
         )
@@ -49,14 +52,7 @@ pub fn gallery(handles: Vec<Result<FileHandle, ReadFileError>>) -> build_html::H
     let mut gallery = Container::new(ContainerType::Div).with_attributes([("class", "gallery")]);
     for handle in handles {
         let container = match handle {
-            Ok(ref handle) => thumbnail(&handle.id).with_html(
+            Ok(ref handle) => thumbnail(&handle.info),
-                Form::new()
-                    .with_path(&format!("/{}", *handle.id))
-                    .with_method("post")
-                    .with_html(Input::new("hidden", "_method").with_value("delete"))
-                    .with_html(Button::new("Delete")),
-            ),
-
             Err(err) => Container::new(ContainerType::Div)
                 .with_attributes(vec![("class", "file")])
                 .with_paragraph(format!("{:?}", err)),
@@ -88,15 +84,31 @@ pub fn upload_form() -> Form {
         )
 }
 
-pub fn thumbnail(id: &FileId) -> Container {
+pub fn thumbnail(info: &FileInfo) -> Container {
     Container::new(ContainerType::Div)
         .with_attributes(vec![("class", "card thumbnail")])
         .with_html(
             Container::new(ContainerType::Div).with_link(
-                format!("/{}", **id),
+                format!("/{}", *info.id),
-                Image::new(&format!("{}/tn", **id))
+                Container::default()
-                    .with_attributes([("class", "thumbnail__image")])
+                    .with_attributes([("class", "thumbnail")])
+                    .with_image(format!("{}/tn", *info.id), "test data")
                     .to_html_string(),
             ),
         )
+        .with_html(
+            Container::new(ContainerType::Div)
+                .with_html(
+                    Container::new(ContainerType::UnorderedList)
+                        .with_attributes(vec![("class", "thumbnail__metadata")])
+                        .with_html(info.name.clone())
+                        .with_html(format!("{}", info.created.format("%Y-%m-%d"))),
+                )
+                .with_html(
+                    Form::new()
+                        .with_path(&format!("/delete/{}", *info.id))
+                        .with_method("post")
+                        .with_html(Button::new("Delete")),
+                ),
+        )
 }

file-service/src/store/filehandle.rs

@@ -120,8 +120,13 @@ impl FileHandle {
     /// Create a new entry in the database
     pub fn new(filename: String, root: PathBuf) -> Result<Self, WriteFileError> {
         let id = FileId::from(Uuid::new_v4().hyphenated().to_string());
+        let path = PathBuf::from(filename);
 
-        let extension = PathBuf::from(filename)
+        let name = path
+            .file_stem()
+            .and_then(|s| s.to_str().map(|s| s.to_owned()))
+            .ok_or(WriteFileError::InvalidPath)?;
+        let extension = path
             .extension()
             .and_then(|s| s.to_str().map(|s| s.to_owned()))
             .ok_or(WriteFileError::InvalidPath)?;
@@ -138,6 +143,7 @@ impl FileHandle {
 
         let info = FileInfo {
             id: id.clone(),
+            name,
             size: 0,
             created: Utc::now(),
             file_type,
@@ -233,6 +239,17 @@ mod test {
         );
     }
 
+    #[test]
+    fn it_creates_file_info() {
+        let tmp = TempDir::new("var").unwrap();
+        let handle =
+            FileHandle::new("rawr.png".to_owned(), PathBuf::from(tmp.path())).expect("to succeed");
+        assert_eq!(handle.info.name, "rawr");
+        assert_eq!(handle.info.size, 0);
+        assert_eq!(handle.info.file_type, "image/png");
+        assert_eq!(handle.info.extension, "png");
+    }
+
     #[test]
     fn it_opens_a_file() {
         let tmp = TempDir::new("var").unwrap();

file-service/src/store/fileinfo.rs

@@ -11,6 +11,12 @@ use std::{
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct FileInfo {
     pub id: FileId,
+
+    // Early versions of the application didn't support a name field, so it is possible that
+    // metadata won't contain the name. We can just default to an empty string when loading the
+    // metadata, as all future versions will require a filename when the file gets uploaded.
+    #[serde(default)]
+    pub name: String,
     pub size: usize,
     pub created: DateTime<Utc>,
     pub file_type: String,
@@ -50,6 +56,7 @@ mod test {
 
         let info = FileInfo {
             id: FileId("temp-id".to_owned()),
+            name: "test-image".to_owned(),
             size: 23777,
             created,
             file_type: "image/png".to_owned(),

file-service/src/store/mod.rs

@@ -1,13 +1,6 @@
-use base64ct::{Base64, Encoding};
 use serde::{Deserialize, Serialize};
-use sha2::{Digest, Sha256};
-use sqlx::{
-    sqlite::{SqlitePool, SqliteRow},
-    Row,
-};
 use std::{collections::HashSet, ops::Deref, path::PathBuf};
 use thiserror::Error;
-use uuid::Uuid;
 
 mod filehandle;
 mod fileinfo;
@@ -53,9 +46,6 @@ pub enum ReadFileError {
     #[error("permission denied")]
     PermissionDenied,
 
-    #[error("invalid path")]
-    InvalidPath,
-
     #[error("JSON error")]
     JSONError(#[from] serde_json::error::Error),
 
@@ -64,132 +54,32 @@ pub enum ReadFileError {
 }
 
 #[derive(Debug, Error)]
-pub enum AuthError {
+pub enum DeleteFileError {
-    #[error("authentication token is duplicated")]
+    #[error("file not found")]
-    DuplicateAuthToken,
+    FileNotFound(PathBuf),
 
-    #[error("session token is duplicated")]
+    #[error("metadata path is not a file")]
-    DuplicateSessionToken,
+    NotAFile,
 
-    #[error("database failed")]
+    #[error("cannot read metadata")]
-    SqlError(sqlx::Error),
+    PermissionDenied,
+
+    #[error("invalid metadata path")]
+    MetadataParseError(serde_json::error::Error),
+
+    #[error("IO error")]
+    IOError(#[from] std::io::Error),
 }
 
-impl From<sqlx::Error> for AuthError {
+impl From<ReadFileError> for DeleteFileError {
-    fn from(err: sqlx::Error) -> AuthError {
+    fn from(err: ReadFileError) -> Self {
-        AuthError::SqlError(err)
+        match err {
-    }
+            ReadFileError::FileNotFound(path) => DeleteFileError::FileNotFound(path),
-}
+            ReadFileError::NotAFile => DeleteFileError::NotAFile,
-
+            ReadFileError::PermissionDenied => DeleteFileError::PermissionDenied,
-#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
+            ReadFileError::JSONError(err) => DeleteFileError::MetadataParseError(err),
-pub struct Username(String);
+            ReadFileError::IOError(err) => DeleteFileError::IOError(err),
-
+        }
-impl From<String> for Username {
-    fn from(s: String) -> Self {
-        Self(s)
-    }
-}
-
-impl From<&str> for Username {
-    fn from(s: &str) -> Self {
-        Self(s.to_owned())
-    }
-}
-
-impl From<Username> for String {
-    fn from(s: Username) -> Self {
-        Self::from(&s)
-    }
-}
-
-impl From<&Username> for String {
-    fn from(s: &Username) -> Self {
-        let Username(s) = s;
-        Self::from(s)
-    }
-}
-
-impl Deref for Username {
-    type Target = String;
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl sqlx::FromRow<'_, SqliteRow> for Username {
-    fn from_row(row: &SqliteRow) -> sqlx::Result<Self> {
-        let name: String = row.try_get("username")?;
-        Ok(Username::from(name))
-    }
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
-pub struct AuthToken(String);
-
-impl From<String> for AuthToken {
-    fn from(s: String) -> Self {
-        Self(s)
-    }
-}
-
-impl From<&str> for AuthToken {
-    fn from(s: &str) -> Self {
-        Self(s.to_owned())
-    }
-}
-
-impl From<AuthToken> for PathBuf {
-    fn from(s: AuthToken) -> Self {
-        Self::from(&s)
-    }
-}
-
-impl From<&AuthToken> for PathBuf {
-    fn from(s: &AuthToken) -> Self {
-        let AuthToken(s) = s;
-        Self::from(s)
-    }
-}
-
-impl Deref for AuthToken {
-    type Target = String;
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
-pub struct SessionToken(String);
-
-impl From<String> for SessionToken {
-    fn from(s: String) -> Self {
-        Self(s)
-    }
-}
-
-impl From<&str> for SessionToken {
-    fn from(s: &str) -> Self {
-        Self(s.to_owned())
-    }
-}
-
-impl From<SessionToken> for PathBuf {
-    fn from(s: SessionToken) -> Self {
-        Self::from(&s)
-    }
-}
-
-impl From<&SessionToken> for PathBuf {
-    fn from(s: &SessionToken) -> Self {
-        let SessionToken(s) = s;
-        Self::from(s)
-    }
-}
-
-impl Deref for SessionToken {
-    type Target = String;
-    fn deref(&self) -> &Self::Target {
-        &self.0
     }
 }
 
@@ -240,95 +130,6 @@ impl FileRoot for Context {
     }
 }
 
-#[derive(Clone)]
-pub struct AuthDB {
-    pool: SqlitePool,
-}
-
-impl AuthDB {
-    pub async fn new(path: PathBuf) -> Result<Self, sqlx::Error> {
-        let migrator = sqlx::migrate!("./migrations");
-        let pool = SqlitePool::connect(&format!("sqlite://{}", path.to_str().unwrap())).await?;
-        migrator.run(&pool).await?;
-        Ok(Self { pool })
-    }
-
-    pub async fn add_user(&self, username: Username) -> Result<AuthToken, AuthError> {
-        let mut hasher = Sha256::new();
-        hasher.update(Uuid::new_v4().hyphenated().to_string());
-        hasher.update(username.to_string());
-        let auth_token = Base64::encode_string(&hasher.finalize());
-
-        let _ = sqlx::query("INSERT INTO users (username, token) VALUES ($1, $2)")
-            .bind(username.to_string())
-            .bind(auth_token.clone())
-            .execute(&self.pool)
-            .await?;
-
-        Ok(AuthToken::from(auth_token))
-    }
-
-    pub async fn list_users(&self) -> Result<Vec<Username>, AuthError> {
-        let usernames = sqlx::query_as::<_, Username>("SELECT (username) FROM users")
-            .fetch_all(&self.pool)
-            .await?;
-
-        Ok(usernames)
-    }
-
-    pub async fn authenticate(&self, token: AuthToken) -> Result<Option<SessionToken>, AuthError> {
-        let results = sqlx::query("SELECT * FROM users WHERE token = $1")
-            .bind(token.to_string())
-            .fetch_all(&self.pool)
-            .await?;
-
-        if results.len() > 1 {
-            return Err(AuthError::DuplicateAuthToken);
-        }
-
-        if results.is_empty() {
-            return Ok(None);
-        }
-
-        let user_id: i64 = results[0].try_get("id")?;
-
-        let mut hasher = Sha256::new();
-        hasher.update(Uuid::new_v4().hyphenated().to_string());
-        hasher.update(token.to_string());
-        let session_token = Base64::encode_string(&hasher.finalize());
-
-        let _ = sqlx::query("INSERT INTO sessions (token, user_id) VALUES ($1, $2)")
-            .bind(session_token.clone())
-            .bind(user_id)
-            .execute(&self.pool)
-            .await?;
-
-        Ok(Some(SessionToken::from(session_token)))
-    }
-
-    pub async fn validate_session(
-        &self,
-        token: SessionToken,
-    ) -> Result<Option<Username>, AuthError> {
-        let rows = sqlx::query(
-            "SELECT users.username FROM sessions INNER JOIN users ON sessions.user_id = users.id WHERE sessions.token = $1",
-        )
-        .bind(token.to_string())
-        .fetch_all(&self.pool)
-        .await?;
-        if rows.len() > 1 {
-            return Err(AuthError::DuplicateSessionToken);
-        }
-
-        if rows.is_empty() {
-            return Ok(None);
-        }
-
-        let username: String = rows[0].try_get("username")?;
-        Ok(Some(Username::from(username)))
-    }
-}
-
 pub struct Store {
     files_root: PathBuf,
 }
@@ -369,7 +170,7 @@ impl Store {
         FileHandle::load(id, &self.files_root)
     }
 
-    pub fn delete_file(&mut self, id: &FileId) -> Result<(), WriteFileError> {
+    pub fn delete_file(&mut self, id: &FileId) -> Result<(), DeleteFileError> {
         let handle = FileHandle::load(id, &self.files_root)?;
         handle.delete();
         Ok(())
@@ -466,74 +267,3 @@ mod test {
         });
     }
 }
-
-#[cfg(test)]
-mod authdb_test {
-    use super::*;
-    use cool_asserts::assert_matches;
-
-    #[tokio::test]
-    async fn can_create_and_list_users() {
-        let db = AuthDB::new(PathBuf::from(":memory:"))
-            .await
-            .expect("a memory-only database will be created");
-        let _ = db
-            .add_user(Username::from("savanni"))
-            .await
-            .expect("user to be created");
-        assert_matches!(db.list_users().await, Ok(names) => {
-            let names = names.into_iter().collect::<HashSet<Username>>();
-            assert!(names.contains(&Username::from("savanni")));
-        })
-    }
-
-    #[tokio::test]
-    async fn unknown_auth_token_returns_nothing() {
-        let db = AuthDB::new(PathBuf::from(":memory:"))
-            .await
-            .expect("a memory-only database will be created");
-        let _ = db
-            .add_user(Username::from("savanni"))
-            .await
-            .expect("user to be created");
-
-        let token = AuthToken::from("0000000000");
-
-        assert_matches!(db.authenticate(token).await, Ok(None));
-    }
-
-    #[tokio::test]
-    async fn auth_token_becomes_session_token() {
-        let db = AuthDB::new(PathBuf::from(":memory:"))
-            .await
-            .expect("a memory-only database will be created");
-        let token = db
-            .add_user(Username::from("savanni"))
-            .await
-            .expect("user to be created");
-
-        assert_matches!(db.authenticate(token).await, Ok(_));
-    }
-
-    #[tokio::test]
-    async fn can_validate_session_token() {
-        let db = AuthDB::new(PathBuf::from(":memory:"))
-            .await
-            .expect("a memory-only database will be created");
-        let token = db
-            .add_user(Username::from("savanni"))
-            .await
-            .expect("user to be created");
-        let session = db
-            .authenticate(token)
-            .await
-            .expect("token authentication should succeed")
-            .expect("session token should be found");
-
-        assert_matches!(
-        db.validate_session(session).await,
-        Ok(Some(username)) => {
-            assert_eq!(username, Username::from("savanni"));
-        });
-    }
-}

file-service/templates/style.css

@@ -29,6 +29,7 @@ body {
     justify-content: center;
     align-items: center;
     height: 200px;
+    margin: 8px;
 }
 
 .authentication-form {
@@ -77,6 +78,10 @@ body {
     border: none;
 }
 
+.thumbnail__metadata {
+    list-style: none;
+}
+
 /*
 [type="submit"] {
     border-radius: 1em;
@@ -129,6 +134,16 @@ body {
 
     .authentication-form {
         width: 100%;
+        display: flex;
+        flex-direction: column;
+    }
+
+    .authentication-form__input {
+        font-size: x-large;
+    }
+
+    .authentication-form__button {
+        font-size: x-large;
     }
 
     .upload-form__selector {

fitnesstrax/app/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "fitnesstrax"
+version = "0.6.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+adw             = { version = "0.5", package = "libadwaita", features = [ "v1_4" ] }
+async-channel   = { version = "2.1" }
+async-trait     = { version = "0.1" }
+chrono          = { version = "0.4" }
+chrono-tz       = { version = "0.8" }
+dimensioned     = { version = "0.8", features = [ "serde" ] }
+emseries        = { path = "../../emseries" }
+ft-core         = { path = "../core" }
+gio             = { version = "0.18" }
+glib            = { version = "0.18" }
+gdk             = { version = "0.7", package = "gdk4" }
+gtk             = { version = "0.7", package = "gtk4", features = [ "v4_10" ] }
+thiserror       = { version = "1.0" }
+tokio           = { version = "1.34", features = [ "full" ] }
+
+[build-dependencies]
+glib-build-tools = "0.18"
+

fitnesstrax/app/build.rs

@@ -0,0 +1,7 @@
+fn main() {
+    glib_build_tools::compile_resources(
+        &["resources"],
+        "gresources.xml",
+        "com.luminescent-dreams.fitnesstrax.gresource",
+    );
+}

fitnesstrax/app/dist.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+VERSION=`cat Cargo.toml | grep "^version =" | sed -r 's/^version = "(.+)"$/\1/'`
+
+mkdir -p dist
+cp ../../target/release/fitnesstrax dist
+cp resources/com.luminescent-dreams.fitnesstrax.gschema.xml resources/fitnesstrax.desktop dist
+strip dist/fitnesstrax
+tar -czf fitnesstrax-${VERSION}.tgz dist/
+

fitnesstrax/app/gresources.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+    <gresource prefix="/com/luminescent-dreams/fitnesstrax/">
+        <file>style.css</file>
+    </gresource>
+
+    <gresource prefix="/com/luminescent-dreams/fitnesstrax/icons/scalable/actions">
+        <file preprocess="xml-stripblanks">cycling-symbolic.svg</file>
+    </gresource>
+
+    <gresource prefix="/com/luminescent-dreams/fitnesstrax/icons/scalable/actions">
+        <file preprocess="xml-stripblanks">running-symbolic.svg</file>
+    </gresource>
+
+    <gresource prefix="/com/luminescent-dreams/fitnesstrax/icons/scalable/actions/">
+        <file preprocess="xml-stripblanks">walking-symbolic.svg</file>
+    </gresource>
+</gresources>

fitnesstrax/app/override.nix

@@ -0,0 +1,14 @@
+{ gtkNativeInputs }:
+attrs: {
+    nativeBuildInputs = gtkNativeInputs;
+    postInstall = ''
+        install -Dt $out/share/applications resources/fitnesstrax.desktop
+        install -Dt $out/gsettings-schemas/${attrs.crateName}-${attrs.version}/glib-2.0/schemas resources/com.luminescent-dreams.fitnesstrax.gschema.xml
+        glib-compile-schemas $out/gsettings-schemas/${attrs.crateName}-${attrs.version}/glib-2.0/schemas
+    '';
+    preFixup = ''
+        gappsWrapperArgs+=(
+            --prefix XDG_DATA_DIRS : $out/gsettings-schemas/${attrs.crateName}-${attrs.version}
+        )
+    '';
+}

fitnesstrax/app/resources/com.luminescent-dreams.fitnesstrax.gschema.dev.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<schemalist>
+    <schema id="com.luminescent-dreams.fitnesstrax.dev" path="/com/luminescent-dreams/fitnesstrax/dev/">
+        <key name="series-path" type="s">
+            <default>""</default>
+            <summary>Path to the series</summary>
+        </key>
+    </schema>
+</schemalist>

fitnesstrax/app/resources/com.luminescent-dreams.fitnesstrax.gschema.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<schemalist>
+    <schema id="com.luminescent-dreams.fitnesstrax" path="/com/luminescent-dreams/fitnesstrax/">
+        <key name="series-path" type="s">
+            <default>""</default>
+            <summary>Path to the series</summary>
+        </key>
+    </schema>
+</schemalist>

fitnesstrax/app/resources/cycling-symbolic.svg

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="16px" viewBox="0 0 16 16" width="16px"><filter id="a" height="100%" width="100%" x="0%" y="0%"><feColorMatrix color-interpolation-filters="sRGB" values="0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0"/></filter><mask id="b"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.5"/></g></mask><clipPath id="c"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><mask id="d"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.7"/></g></mask><clipPath id="e"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><mask id="f"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.35"/></g></mask><clipPath id="g"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><path d="m 9.5 2 c -0.828125 0 -1.5 0.671875 -1.5 1.5 s 0.671875 1.5 1.5 1.5 s 1.5 -0.671875 1.5 -1.5 s -0.671875 -1.5 -1.5 -1.5 z m 0 0"/><path d="m 4.285156 13 c 0 0.703125 -0.582031 1.285156 -1.285156 1.285156 s -1.285156 -0.582031 -1.285156 -1.285156 s 0.582031 -1.285156 1.285156 -1.285156 s 1.285156 0.582031 1.285156 1.285156 z m -4.285156 0 c 0 1.675781 1.324219 3 3 3 s 3 -1.324219 3 -3 s -1.324219 -3 -3 -3 s -3 1.324219 -3 3 z m 0 0"/><path d="m 8.992188 13.007812 v -3.003906 c 0 -0.359375 -0.1875 -0.6875 -0.5 -0.867187 l -2.558594 -1.476563 l 0.363281 1.363282 l 1.671875 -2.890626 l -1.367188 0.363282 l 0.910157 0.527344 l -0.40625 -0.4375 c 0.773437 1.621093 1.96875 1.933593 1.96875 1.933593 s 0.578125 0.242188 1.9375 0.429688 c 0.546875 0.074219 1.050781 -0.304688 1.128906 -0.851563 c 0.074219 -0.550781 -0.308594 -1.054687 -0.855469 -1.128906 c -1.179687 -0.164062 -1.601562 -0.355469 -1.601562 -0.355469 s -0.425782 -0.164062 -0.769532 -0.886719 c -0.089843 -0.183593 -0.226562 -0.335937 -0.402343 -0.4375 l -0.910157 -0.523437 c -0.476562 -0.277344 -1.089843 -0.113281 -1.363281 0.367187 l -1.671875 2.890626 c -0.277344 0.480468 -0.113281 1.089843 0.367188 1.367187 l 2.558594 1.480469 l -0.5 -0.867188 v 3.003906 c 0 0.550782 0.449218 1 1 1 c 0.554687 0 1 -0.449218 1 -1 z m 0 0"/><path d="m 14.285156 13 c 0 0.703125 -0.582031 1.285156 -1.285156 1.285156 s -1.285156 -0.582031 -1.285156 -1.285156 s 0.582031 -1.285156 1.285156 -1.285156 s 1.285156 0.582031 1.285156 1.285156 z m -4.285156 0 c 0 1.675781 1.324219 3 3 3 s 3 -1.324219 3 -3 s -1.324219 -3 -3 -3 s -3 1.324219 -3 3 z m 0 0"/><g mask="url(#b)"><g clip-path="url(#c)" transform="matrix(1 0 0 1 -600 -120)"><path d="m 550 182 c -0.351562 0.003906 -0.695312 0.101562 -1 0.28125 v 3.4375 c 0.304688 0.179688 0.648438 0.277344 1 0.28125 c 1.105469 0 2 -0.894531 2 -2 s -0.894531 -2 -2 -2 z m 0 5 c -0.339844 0 -0.679688 0.058594 -1 0.175781 v 6.824219 h 4 v -4 c 0 -1.65625 -1.34375 -3 -3 -3 z m 0 0"/></g></g><g mask="url(#d)"><g clip-path="url(#e)" transform="matrix(1 0 0 1 -600 -120)"><path d="m 569 182 v 4 c 1.105469 0 2 -0.894531 2 -2 s -0.894531 -2 -2 -2 z m 0 5 v 7 h 3 v -4 c 0 -1.65625 -1.34375 -3 -3 -3 z m 0 0"/></g></g><g mask="url(#f)"><g clip-path="url(#g)" transform="matrix(1 0 0 1 -600 -120)"><path d="m 573 182.269531 v 3.449219 c 0.613281 -0.355469 0.996094 -1.007812 1 -1.71875 c 0 -0.714844 -0.382812 -1.375 -1 -1.730469 z m 0 4.90625 v 6.824219 h 2 v -4 c 0 -1.269531 -0.800781 -2.402344 -2 -2.824219 z m 0 0"/></g></g></svg>

fitnesstrax/app/resources/fitnesstrax.desktop

@@ -0,0 +1,5 @@
+[Desktop Entry]
+Version=0.2
+Type=Application
+Name=FitnessTrax
+Exec=fitnesstrax

fitnesstrax/app/resources/running-symbolic.svg

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="16px" viewBox="0 0 16 16" width="16px"><filter id="a" height="100%" width="100%" x="0%" y="0%"><feColorMatrix color-interpolation-filters="sRGB" values="0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0"/></filter><mask id="b"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.5"/></g></mask><clipPath id="c"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><mask id="d"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.7"/></g></mask><clipPath id="e"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><mask id="f"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.35"/></g></mask><clipPath id="g"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><path d="m 8.5 0 c -0.828125 0 -1.5 0.671875 -1.5 1.5 s 0.671875 1.5 1.5 1.5 s 1.5 -0.671875 1.5 -1.5 s -0.671875 -1.5 -1.5 -1.5 z m -2.5 4 c -0.117188 0 -0.230469 0.027344 -0.335938 0.082031 l -2 1 c -0.144531 0.070313 -0.261718 0.1875 -0.332031 0.332031 l -1 2 c -0.1875 0.371094 -0.039062 0.820313 0.332031 1.007813 c 0.371094 0.183594 0.820313 0.035156 1.003907 -0.335937 l 0.890625 -1.777344 l 1.5625 -0.773438 c -0.042969 0.074219 -0.726563 2.835938 -0.726563 2.835938 c -0.230469 0.949218 0.398438 1.523437 0.398438 1.523437 l 3.351562 2.703125 l 0.90625 2.71875 c 0.175781 0.523438 0.742188 0.808594 1.265625 0.632813 c 0.523438 -0.175781 0.808594 -0.742188 0.632813 -1.265625 l -1 -3 c -0.0625 -0.183594 -0.171875 -0.34375 -0.324219 -0.464844 l -2 -1.597656 l 0.679688 -2.714844 l 0.25 0.625 c 0.085937 0.222656 0.28125 0.390625 0.515624 0.449219 l 2 0.5 c 0.402344 0.097656 0.808594 -0.144531 0.910157 -0.546875 c 0.097656 -0.40625 -0.144531 -0.8125 -0.546875 -0.910156 l -1.628906 -0.40625 l -0.855469 -2.144532 c -0.117188 -0.285156 -0.390625 -0.472656 -0.699219 -0.472656 z m -1.164062 6.328125 l -0.710938 2.128906 l -1.832031 1.835938 c -0.390625 0.390625 -0.390625 1.023437 0 1.414062 s 1.023437 0.390625 1.414062 0 l 2 -2 c 0.109375 -0.109375 0.191407 -0.242187 0.242188 -0.390625 l 0.542969 -1.628906 z m 0 0"/><g mask="url(#b)"><g clip-path="url(#c)" transform="matrix(1 0 0 1 -620 -120)"><path d="m 550 182 c -0.351562 0.003906 -0.695312 0.101562 -1 0.28125 v 3.4375 c 0.304688 0.179688 0.648438 0.277344 1 0.28125 c 1.105469 0 2 -0.894531 2 -2 s -0.894531 -2 -2 -2 z m 0 5 c -0.339844 0 -0.679688 0.058594 -1 0.175781 v 6.824219 h 4 v -4 c 0 -1.65625 -1.34375 -3 -3 -3 z m 0 0"/></g></g><g mask="url(#d)"><g clip-path="url(#e)" transform="matrix(1 0 0 1 -620 -120)"><path d="m 569 182 v 4 c 1.105469 0 2 -0.894531 2 -2 s -0.894531 -2 -2 -2 z m 0 5 v 7 h 3 v -4 c 0 -1.65625 -1.34375 -3 -3 -3 z m 0 0"/></g></g><g mask="url(#f)"><g clip-path="url(#g)" transform="matrix(1 0 0 1 -620 -120)"><path d="m 573 182.269531 v 3.449219 c 0.613281 -0.355469 0.996094 -1.007812 1 -1.71875 c 0 -0.714844 -0.382812 -1.375 -1 -1.730469 z m 0 4.90625 v 6.824219 h 2 v -4 c 0 -1.269531 -0.800781 -2.402344 -2 -2.824219 z m 0 0"/></g></g></svg>

fitnesstrax/app/resources/style.css

@@ -0,0 +1,85 @@
+.welcome {
+    margin: 64px;
+}
+
+.welcome__title {
+    font-size: x-large;
+    padding: 8px;
+}
+
+.welcome__content {
+    padding: 8px;
+}
+
+.historical {
+    margin: 32px;
+    border-radius: 8px;
+}
+
+.date-range-picker {
+    margin-bottom: 16px;
+}
+
+/*
+.date-range-picker > box:not(:last-child) {
+    margin-bottom: 8px;
+}
+*/
+
+.date-range-picker__date-field {
+    margin: 8px;
+}
+
+.date-range-picker__search-button {
+    margin: 8px;
+}
+
+.date-range-picker__range-button {
+    margin: 8px;
+}
+
+.date-field__year {
+    margin: 0px 4px 0px 0px;
+}
+
+.date-field__month {
+    margin: 0px 4px 0px 4px;
+}
+
+.date-field__day {
+    margin: 0px 0px 0px 4px;
+}
+
+.day-summary {
+    padding: 8px;
+}
+
+.day-summary > *:not(:last-child) {
+    margin-bottom: 8px;
+}
+
+.day-summary__date {
+    font-size: x-large;
+}
+
+.day-summary__weight {
+    margin: 4px;
+}
+
+.weight-view {
+    padding: 8px;
+    margin: 8px;
+}
+
+.step-view {
+    padding: 8px;
+    margin: 8px;
+}
+
+.about__content {
+    padding: 32px;
+}
+
+.about label {
+    margin-bottom: 16px;
+}

fitnesstrax/app/resources/walking-symbolic.svg

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="16px" viewBox="0 0 16 16" width="16px"><filter id="a" height="100%" width="100%" x="0%" y="0%"><feColorMatrix color-interpolation-filters="sRGB" values="0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0"/></filter><mask id="b"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.5"/></g></mask><clipPath id="c"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><mask id="d"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.7"/></g></mask><clipPath id="e"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><mask id="f"><g filter="url(#a)"><path d="m -1.6 -1.6 h 19.2 v 19.2 h -19.2 z" fill-opacity="0.35"/></g></mask><clipPath id="g"><path d="m 0 0 h 1600 v 1200 h -1600 z"/></clipPath><path d="m 9.5 1.5 c 0 0.828125 -0.671875 1.5 -1.5 1.5 s -1.5 -0.671875 -1.5 -1.5 s 0.671875 -1.5 1.5 -1.5 s 1.5 0.671875 1.5 1.5 z m 0 0"/><path d="m 7 4 c -0.550781 0 -1 0.449219 -1 1 v 4 c 0 0.265625 0.105469 0.519531 0.292969 0.707031 l 0.445312 0.449219 l -2.59375 4.328125 c -0.285156 0.476563 -0.132812 1.089844 0.34375 1.375 c 0.472657 0.28125 1.085938 0.128906 1.367188 -0.34375 l 2.34375 -3.902344 l 0.925781 0.929688 l 0.925781 2.773437 c 0.082031 0.25 0.265625 0.460938 0.5 0.578125 c 0.238281 0.121094 0.515625 0.140625 0.765625 0.054688 c 0.25 -0.082031 0.460938 -0.265625 0.578125 -0.5 c 0.121094 -0.238281 0.140625 -0.515625 0.054688 -0.765625 l -1 -3 c -0.050781 -0.148438 -0.132813 -0.28125 -0.242188 -0.390625 l -1.707031 -1.707031 v -4.585938 c 0 -0.550781 -0.449219 -1 -1 -1 z m 0 0"/><path d="m 6 4 c -0.101562 0 -0.207031 0.019531 -0.300781 0.0625 c 0 0 -2.113281 0.847656 -2.199219 2.90625 v 0.03125 v 2.25 c 0 0.414062 0.335938 0.75 0.75 0.75 s 0.75 -0.335938 0.75 -0.75 v -2.21875 c 0.039062 -0.894531 1.050781 -1.449219 1.207031 -1.53125 h 2.332031 l 1.042969 2.085938 c 0.097657 0.195312 0.273438 0.339843 0.488281 0.394531 l 2 0.5 c 0.191407 0.046875 0.394532 0.015625 0.566407 -0.085938 c 0.171875 -0.101562 0.292969 -0.269531 0.34375 -0.460937 c 0.046875 -0.195313 0.015625 -0.398438 -0.085938 -0.570313 c -0.101562 -0.171875 -0.269531 -0.292969 -0.464843 -0.34375 l -1.664063 -0.414062 l -1.097656 -2.191407 c -0.125 -0.253906 -0.382813 -0.414062 -0.667969 -0.414062 z m 0 0"/><g mask="url(#b)"><g clip-path="url(#c)" transform="matrix(1 0 0 1 -620 -100)"><path d="m 550 182 c -0.351562 0.003906 -0.695312 0.101562 -1 0.28125 v 3.4375 c 0.304688 0.179688 0.648438 0.277344 1 0.28125 c 1.105469 0 2 -0.894531 2 -2 s -0.894531 -2 -2 -2 z m 0 5 c -0.339844 0 -0.679688 0.058594 -1 0.175781 v 6.824219 h 4 v -4 c 0 -1.65625 -1.34375 -3 -3 -3 z m 0 0"/></g></g><g mask="url(#d)"><g clip-path="url(#e)" transform="matrix(1 0 0 1 -620 -100)"><path d="m 569 182 v 4 c 1.105469 0 2 -0.894531 2 -2 s -0.894531 -2 -2 -2 z m 0 5 v 7 h 3 v -4 c 0 -1.65625 -1.34375 -3 -3 -3 z m 0 0"/></g></g><g mask="url(#f)"><g clip-path="url(#g)" transform="matrix(1 0 0 1 -620 -100)"><path d="m 573 182.269531 v 3.449219 c 0.613281 -0.355469 0.996094 -1.007812 1 -1.71875 c 0 -0.714844 -0.382812 -1.375 -1 -1.730469 z m 0 4.90625 v 6.824219 h 2 v -4 c 0 -1.269531 -0.800781 -2.402344 -2 -2.824219 z m 0 0"/></g></g></svg>

fitnesstrax/app/src/about.rs

@@ -0,0 +1,80 @@
+/*
+Copyright 2023 - 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+#[derive(Default)]
+pub struct AboutWindowPrivate {}
+
+#[glib::object_subclass]
+impl ObjectSubclass for AboutWindowPrivate {
+    const NAME: &'static str = "AboutWindow";
+    type Type = AboutWindow;
+    type ParentType = gtk::Window;
+}
+
+impl ObjectImpl for AboutWindowPrivate {}
+impl WidgetImpl for AboutWindowPrivate {}
+impl WindowImpl for AboutWindowPrivate {}
+
+glib::wrapper! {
+    pub struct AboutWindow(ObjectSubclass<AboutWindowPrivate>) @extends gtk::Window, gtk::Widget;
+}
+
+impl Default for AboutWindow {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_width_request(600);
+        s.set_height_request(700);
+        s.add_css_class("about");
+
+        s.set_title(Some("About Fitnesstrax"));
+        let copyright = gtk::Label::builder()
+            .label("Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>")
+            .halign(gtk::Align::Start)
+            .build();
+
+        let gtk_rs_thanks = gtk::Label::builder()
+            .label("I owe a huge debt of gratitude to the GTK-RS project (https://gtk-rs.org/), which makes it possible for me to write this application to begin with. Further, I owe a particular debt to Julian Hofer and his book, GUI development with Rust and GTK 4 (https://gtk-rs.org/gtk4-rs/stable/latest/book/). Without this book, I would have continued to stumble around writing bad user interfaces with even worse code.")
+            .halign(gtk::Align::Start).wrap(true)
+            .build();
+
+        let dependencies = gtk::Label::builder()
+            .label("This application depends on many libraries, most of which are licensed under the BSD-3 or GPL-3 licenses.")
+            .halign(gtk::Align::Start).wrap(true)
+            .build();
+
+        let content = gtk::Box::builder()
+            .orientation(gtk::Orientation::Vertical)
+            .css_classes(["about__content"])
+            .build();
+        content.append(&copyright);
+        content.append(&gtk_rs_thanks);
+        content.append(&dependencies);
+
+        let scroller = gtk::ScrolledWindow::builder()
+            .child(&content)
+            .hexpand(true)
+            .vexpand(true)
+            .hscrollbar_policy(gtk::PolicyType::Never)
+            .build();
+
+        s.set_child(Some(&scroller));
+
+        s
+    }
+}

fitnesstrax/app/src/app.rs

@@ -0,0 +1,167 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use async_trait::async_trait;
+use chrono::NaiveDate;
+use emseries::{time_range, Record, RecordId, Series, Timestamp};
+use ft_core::TraxRecord;
+use std::{
+    path::PathBuf,
+    sync::{Arc, RwLock},
+};
+use thiserror::Error;
+use tokio::runtime::Runtime;
+
+#[derive(Debug, Error)]
+pub enum AppError {
+    #[error("no database loaded")]
+    NoDatabase,
+    #[error("failed to open the database")]
+    FailedToOpenDatabase,
+    #[error("unhandled error")]
+    Unhandled,
+}
+
+#[derive(Debug, Error)]
+pub enum ReadError {
+    #[error("no database loaded")]
+    NoDatabase,
+}
+
+#[derive(Debug, Error)]
+pub enum WriteError {
+    #[error("no database loaded")]
+    NoDatabase,
+    #[error("unhandled error")]
+    Unhandled,
+}
+
+#[async_trait]
+pub trait RecordProvider: Send + Sync {
+    async fn records(
+        &self,
+        start: NaiveDate,
+        end: NaiveDate,
+    ) -> Result<Vec<Record<TraxRecord>>, ReadError>;
+    async fn put_record(&self, record: TraxRecord) -> Result<RecordId, WriteError>;
+    async fn update_record(&self, record: Record<TraxRecord>) -> Result<(), WriteError>;
+    async fn delete_record(&self, id: RecordId) -> Result<(), WriteError>;
+}
+
+/// The real, headless application. This is where all of the logic will reside.
+#[derive(Clone)]
+pub struct App {
+    runtime: Arc<Runtime>,
+    database: Arc<RwLock<Option<Series<TraxRecord>>>>,
+}
+
+impl App {
+    pub fn new(db_path: Option<PathBuf>) -> Self {
+        let database = db_path.map(|path| Series::open(path).unwrap());
+        let runtime = Arc::new(
+            tokio::runtime::Builder::new_multi_thread()
+                .enable_all()
+                .build()
+                .unwrap(),
+        );
+
+        Self {
+            runtime,
+            database: Arc::new(RwLock::new(database)),
+        }
+    }
+
+    pub async fn open_db(&self, path: PathBuf) -> Result<(), AppError> {
+        let db_ref = self.database.clone();
+        self.runtime
+            .spawn_blocking(move || {
+                let db = Series::open(path).map_err(|_| AppError::FailedToOpenDatabase)?;
+                *db_ref.write().unwrap() = Some(db);
+                Ok(())
+            })
+            .await
+            .unwrap()
+    }
+
+    pub fn database_is_open(&self) -> bool {
+        self.database.read().unwrap().is_some()
+    }
+}
+
+#[async_trait]
+impl RecordProvider for App {
+    async fn records(
+        &self,
+        start: NaiveDate,
+        end: NaiveDate,
+    ) -> Result<Vec<Record<TraxRecord>>, ReadError> {
+        let db = self.database.clone();
+        self.runtime
+            .spawn_blocking(move || {
+                if let Some(ref db) = *db.read().unwrap() {
+                    let records = db
+                        .search(time_range(
+                            Timestamp::Date(start),
+                            true,
+                            Timestamp::Date(end),
+                            true,
+                        ))
+                        .cloned()
+                        .collect::<Vec<Record<TraxRecord>>>();
+                    Ok(records)
+                } else {
+                    Err(ReadError::NoDatabase)
+                }
+            })
+            .await
+            .unwrap()
+    }
+
+    async fn put_record(&self, record: TraxRecord) -> Result<RecordId, WriteError> {
+        let db = self.database.clone();
+        self.runtime
+            .spawn_blocking(move || {
+                if let Some(ref mut db) = *db.write().unwrap() {
+                    let id = db.put(record).unwrap();
+                    Ok(id)
+                } else {
+                    Err(AppError::NoDatabase)
+                }
+            })
+            .await
+            .unwrap()
+            .map_err(|_| WriteError::Unhandled)
+    }
+
+    async fn update_record(&self, record: Record<TraxRecord>) -> Result<(), WriteError> {
+        let db = self.database.clone();
+        self.runtime
+            .spawn_blocking(move || {
+                if let Some(ref mut db) = *db.write().unwrap() {
+                    db.update(record).map_err(|_| AppError::Unhandled)
+                } else {
+                    Err(AppError::NoDatabase)
+                }
+            })
+            .await
+            .unwrap()
+            .map_err(|_| WriteError::Unhandled)
+    }
+
+    async fn delete_record(&self, _id: RecordId) -> Result<(), WriteError> {
+        unimplemented!()
+    }
+}

fitnesstrax/app/src/app_window.rs

@@ -0,0 +1,215 @@
+/*
+Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{
+    app::App,
+    types::DayInterval,
+    view_models::DayDetailViewModel,
+    views::{DayDetailView, HistoricalView, PlaceholderView, View, WelcomeView},
+};
+use adw::prelude::*;
+use chrono::{Duration, Local};
+
+use gio::resources_lookup_data;
+use gtk::STYLE_PROVIDER_PRIORITY_USER;
+use std::{cell::RefCell, path::PathBuf, rc::Rc};
+
+/// The application window, or the main window, is the main user interface for the app. Almost
+/// everything occurs here.
+#[derive(Clone)]
+pub struct AppWindow {
+    app: App,
+    layout: gtk::Box,
+    current_view: Rc<RefCell<View>>,
+    settings: gio::Settings,
+    navigation: adw::NavigationView,
+}
+
+impl AppWindow {
+    /// Construct a new App Window.
+    ///
+    /// adw_app is an Adwaita application. Application windows need to have access to this, but
+    /// otherwise we don't use this.
+    ///
+    /// app is a core [crate::app::App] object which encapsulates all of the basic logic.
+    pub fn new(
+        app_id: &str,
+        resource_path: &str,
+        adw_app: &adw::Application,
+        ft_app: App,
+    ) -> AppWindow {
+        let window = adw::ApplicationWindow::builder()
+            .application(adw_app)
+            .width_request(800)
+            .height_request(746)
+            .build();
+        window.connect_destroy(|s| {
+            let _ = gtk::prelude::WidgetExt::activate_action(s, "app.quit", None);
+        });
+
+        let stylesheet = String::from_utf8(
+            resources_lookup_data(
+                &format!("{}style.css", resource_path),
+                gio::ResourceLookupFlags::NONE,
+            )
+            .expect("stylesheet must be available in the resources")
+            .to_vec(),
+        )
+        .expect("to parse stylesheet");
+
+        let provider = gtk::CssProvider::new();
+        provider.load_from_data(&stylesheet);
+
+        #[allow(deprecated)]
+        let context = window.style_context();
+        #[allow(deprecated)]
+        context.add_provider(&provider, STYLE_PROVIDER_PRIORITY_USER);
+
+        let navigation = adw::NavigationView::new();
+
+        let layout = gtk::Box::builder()
+            .orientation(gtk::Orientation::Vertical)
+            .build();
+
+        let initial_view = View::Placeholder(PlaceholderView::default().upcast());
+
+        let header_bar = adw::HeaderBar::new();
+
+        let main_menu = gio::Menu::new();
+        main_menu.append(Some("About"), Some("app.about"));
+        main_menu.append(Some("Quit"), Some("app.quit"));
+        let main_menu_button = gtk::MenuButton::builder()
+            .icon_name("open-menu")
+            .direction(gtk::ArrowType::Down)
+            .halign(gtk::Align::End)
+            .menu_model(&main_menu)
+            .build();
+        header_bar.pack_end(&main_menu_button);
+
+        layout.append(&initial_view.widget());
+
+        let nav_layout = gtk::Box::new(gtk::Orientation::Vertical, 0);
+        nav_layout.append(&header_bar);
+        nav_layout.append(&layout);
+        navigation.push(
+            &adw::NavigationPage::builder()
+                .can_pop(false)
+                .title("FitnessTrax")
+                .child(&nav_layout)
+                .build(),
+        );
+
+        window.set_content(Some(&navigation));
+        window.present();
+
+        let s = Self {
+            app: ft_app,
+            layout,
+            current_view: Rc::new(RefCell::new(initial_view)),
+            settings: gio::Settings::new(app_id),
+            navigation,
+        };
+
+        s.load_records();
+
+        s.navigation.connect_popped({
+            let s = s.clone();
+            move |_, _| {
+                if let View::Historical(_) = *s.current_view.borrow() {
+                    s.load_records();
+                }
+            }
+        });
+
+        s
+    }
+
+    fn show_welcome_view(&self) {
+        let view = View::Welcome(WelcomeView::new({
+            let s = self.clone();
+            move |path| s.on_apply_config(path)
+        }));
+        self.swap_main(view);
+    }
+
+    fn show_historical_view(&self, interval: DayInterval) {
+        let on_select_day = {
+            let s = self.clone();
+            move |date| {
+                let s = s.clone();
+                glib::spawn_future_local(async move {
+                    let view_model = DayDetailViewModel::new(date, s.app.clone()).await.unwrap();
+                    let layout = gtk::Box::new(gtk::Orientation::Vertical, 0);
+                    layout.append(&adw::HeaderBar::new());
+                    // layout.append(&DayDetailView::new(date, records, s.app.clone()));
+                    layout.append(&DayDetailView::new(view_model));
+                    let page = &adw::NavigationPage::builder()
+                        .title(date.format("%Y-%m-%d").to_string())
+                        .child(&layout)
+                        .build();
+                    s.navigation.push(page);
+                });
+            }
+        };
+
+        let view = View::Historical(HistoricalView::new(
+            self.app.clone(),
+            interval,
+            Rc::new(on_select_day),
+        ));
+        self.swap_main(view);
+    }
+
+    fn load_records(&self) {
+        glib::spawn_future_local({
+            let s = self.clone();
+            async move {
+                if s.app.database_is_open() {
+                    let end = Local::now().date_naive();
+                    let start = end - Duration::days(7);
+                    s.show_historical_view(DayInterval { start, end });    
+                } else {
+                    s.show_welcome_view();
+                }
+            }
+        });
+    }
+
+    // Switch views.
+    //
+    // This function only replaces the old view with the one which matches the current view state.
+    // It is responsible for ensuring that the new view goes into the layout in the correct
+    // position.
+    fn swap_main(&self, view: View) {
+        let mut current_widget = self.current_view.borrow_mut();
+        self.layout.remove(&current_widget.widget());
+        *current_widget = view;
+        self.layout.append(&current_widget.widget());
+    }
+
+    #[allow(unused)]
+    fn on_apply_config(&self, path: PathBuf) {
+        glib::spawn_future_local({
+            let s = self.clone();
+            async move {
+                if s.app.open_db(path.clone()).await.is_ok() {
+                    let _ = s.settings.set("series-path", path.to_str().unwrap());
+                    s.load_records();
+                }
+            }
+        });
+    }
+}

fitnesstrax/app/src/components/action_group.rs

@@ -0,0 +1,137 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+//! ActionGroup and related structures
+
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+#[derive(Default)]
+pub struct ActionGroupPrivate;
+
+#[glib::object_subclass]
+impl ObjectSubclass for ActionGroupPrivate {
+    const NAME: &'static str = "ActionGroup";
+    type Type = ActionGroup;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for ActionGroupPrivate {}
+impl WidgetImpl for ActionGroupPrivate {}
+impl BoxImpl for ActionGroupPrivate {}
+
+glib::wrapper! {
+    pub struct ActionGroup(ObjectSubclass<ActionGroupPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl ActionGroup {
+    fn new(builder: ActionGroupBuilder) -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(builder.orientation);
+
+        let primary_button = builder.primary_action.button();
+        let secondary_button = builder.secondary_action.map(|action| action.button());
+        let tertiary_button = builder.tertiary_action.map(|action| action.button());
+
+        if let Some(button) = tertiary_button {
+            s.append(&button);
+        }
+
+        s.set_halign(gtk::Align::End);
+        if let Some(button) = secondary_button {
+            s.append(&button);
+        }
+        s.append(&primary_button);
+
+        s
+    }
+
+    pub fn builder() -> ActionGroupBuilder {
+        ActionGroupBuilder {
+            orientation: gtk::Orientation::Horizontal,
+            primary_action: Action {
+                label: "Ok".to_owned(),
+                action: Box::new(|| {}),
+            },
+            secondary_action: None,
+            tertiary_action: None,
+        }
+    }
+}
+
+struct Action {
+    label: String,
+    action: Box<dyn Fn()>,
+}
+
+impl Action {
+    fn button(self) -> gtk::Button {
+        let button = gtk::Button::builder().label(self.label).build();
+        button.connect_clicked(move |_| (self.action)());
+        button
+    }
+}
+
+pub struct ActionGroupBuilder {
+    orientation: gtk::Orientation,
+    primary_action: Action,
+    secondary_action: Option<Action>,
+    tertiary_action: Option<Action>,
+}
+
+impl ActionGroupBuilder {
+    pub fn orientation(mut self, orientation: gtk::Orientation) -> Self {
+        self.orientation = orientation;
+        self
+    }
+
+    pub fn primary_action<A>(mut self, label: &str, action: A) -> Self
+    where
+        A: Fn() + 'static,
+    {
+        self.primary_action = Action {
+            label: label.to_owned(),
+            action: Box::new(action),
+        };
+        self
+    }
+
+    pub fn secondary_action<A>(mut self, label: &str, action: A) -> Self
+    where
+        A: Fn() + 'static,
+    {
+        self.secondary_action = Some(Action {
+            label: label.to_owned(),
+            action: Box::new(action),
+        });
+        self
+    }
+
+    pub fn tertiary_action<A>(mut self, label: &str, action: A) -> Self
+    where
+        A: Fn() + 'static,
+    {
+        self.tertiary_action = Some(Action {
+            label: label.to_owned(),
+            action: Box::new(action),
+        });
+        self
+    }
+
+    pub fn build(self) -> ActionGroup {
+        ActionGroup::new(self)
+    }
+}

fitnesstrax/app/src/components/date_field.rs

@@ -0,0 +1,175 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{components::{i32_field_builder, TextEntry, month_field_builder}, types::ParseError};
+use chrono::{Datelike, Local};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, rc::Rc};
+
+pub struct DateFieldPrivate {
+    date: Rc<RefCell<chrono::NaiveDate>>,
+    year: TextEntry<i32>,
+    month: TextEntry<u32>,
+    day: TextEntry<u32>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DateFieldPrivate {
+    const NAME: &'static str = "DateField";
+    type Type = DateField;
+    type ParentType = gtk::Box;
+
+    fn new() -> Self {
+        let date = Rc::new(RefCell::new(Local::now().date_naive()));
+
+        let year = i32_field_builder()
+            .with_value(date.borrow().year())
+            .with_on_update(
+            {
+                let date = date.clone();
+                move |value| {
+                    if let Some(year) = value {
+                        let mut date = date.borrow_mut();
+                        if let Some(new_date) = date.with_year(year) {
+                            *date = new_date;
+                        }
+                    }
+                }
+            })
+            .with_length(4)
+            .with_css_classes(vec!["date-field__year".to_owned()]).build();
+
+        let month = month_field_builder()
+            .with_value(date.borrow().month())
+            .with_on_update(
+            {
+                let date = date.clone();
+                move |value| {
+                    if let Some(month) = value {
+                        let mut date = date.borrow_mut();
+                        if let Some(new_date) = date.with_month(month) {
+                            *date = new_date;
+                        }
+                    }
+                }
+            })
+            .with_css_classes(vec!["date-field__month".to_owned()])
+            .build();
+
+        /* Modify this so that it enforces the number of days per month */
+        let day = TextEntry::builder()
+            .with_placeholder("day".to_owned())
+            .with_value(date.borrow().day())
+            .with_renderer(|v| format!("{}", v))
+            .with_parser(|v| v.parse::<u32>().map_err(|_| ParseError))
+            .with_on_update({
+                let date = date.clone();
+                move |value| {
+                    if let Some(day) = value {
+                        let mut date = date.borrow_mut();
+                        if let Some(new_date) = date.with_day(day) {
+                            *date = new_date;
+                        }
+                    }
+                }
+            })
+            .with_css_classes(vec!["date-field__day".to_owned()])
+            .build();
+
+        Self {
+            date,
+            year,
+            month,
+            day,
+        }
+    }
+
+}
+
+impl ObjectImpl for DateFieldPrivate {}
+impl WidgetImpl for DateFieldPrivate {}
+impl BoxImpl for DateFieldPrivate {}
+
+glib::wrapper! {
+    pub struct DateField(ObjectSubclass<DateFieldPrivate>) @extends gtk::Box, gtk::Widget;
+}
+
+/* Render a date in the format 2006 Jan 01. The entire date is editable. When the user moves to one part of the date, it will be erased and replaced with a grey placeholder.
+ */
+impl DateField {
+    pub fn new(date: chrono::NaiveDate) -> Self {
+        let s: Self = Object::builder().build();
+        s.add_css_class("date-field");
+
+        s.append(&s.imp().year.widget());
+        s.append(&gtk::Label::new(Some("-")));
+        s.append(&s.imp().month.widget());
+        s.append(&gtk::Label::new(Some("-")));
+        s.append(&s.imp().day.widget());
+
+        s.set_date(date);
+
+        s
+    }
+
+    pub fn set_date(&self, date: chrono::NaiveDate) {
+        self.imp().year.set_value(Some(date.year()));
+        self.imp().month.set_value(Some(date.month()));
+        self.imp().day.set_value(Some(date.day()));
+
+        *self.imp().date.borrow_mut() = date;
+    }
+
+    pub fn date(&self) -> chrono::NaiveDate {
+        *self.imp().date.borrow()
+    }
+    /*
+    pub fn is_valid(&self) -> bool {
+        false
+    }
+    */
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    // use crate::gtk_init::gtk_init;
+
+    // Enabling this test pushes tests on the TextField into an infinite loop. That likely indicates a bad interaction within the TextField itself, and that is going to need to be fixed.
+    #[test]
+    #[ignore]
+    fn it_allows_valid_dates() {
+        let reference = chrono::NaiveDate::from_ymd_opt(2006, 01, 02).unwrap();
+        let field = DateField::new(reference);
+        field.imp().year.set_value(Some(2023));
+        field.imp().month.set_value(Some(10));
+        field.imp().day.set_value(Some(13));
+        // assert!(field.is_valid());
+    }
+    
+    #[test]
+    #[ignore]
+    fn it_disallows_out_of_range_months() {
+        unimplemented!()
+    }
+
+    #[test]
+    #[ignore]
+    fn it_allows_days_within_range_for_month() {
+        unimplemented!()
+    }
+}

fitnesstrax/app/src/components/date_range.rs

@@ -0,0 +1,189 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{components::DateField, types::DayInterval};
+use chrono::{Duration, Local, Months};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::cell::RefCell;
+
+type OnSearch = dyn Fn(DayInterval) + 'static;
+
+pub struct DateRangePickerPrivate {
+    start: DateField,
+    end: DateField,
+
+    on_search: RefCell<Box<OnSearch>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DateRangePickerPrivate {
+    const NAME: &'static str = "DateRangePicker";
+    type Type = DateRangePicker;
+    type ParentType = gtk::Box;
+
+    fn new() -> Self {
+        let default_date = Local::now().date_naive();
+        let start = DateField::new(default_date);
+        start.add_css_class("date-range-picker__date-field");
+        let end = DateField::new(default_date);
+        end.add_css_class("date-range-picker__date-field");
+
+        Self {
+            start,
+            end,
+            on_search: RefCell::new(Box::new(|_| {})),
+        }
+    }
+}
+
+impl ObjectImpl for DateRangePickerPrivate {}
+impl WidgetImpl for DateRangePickerPrivate {}
+impl BoxImpl for DateRangePickerPrivate {}
+
+glib::wrapper! {
+    pub struct DateRangePicker(ObjectSubclass<DateRangePickerPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl DateRangePicker {
+    pub fn connect_on_search<OnSearch>(&self, f: OnSearch)
+    where
+        OnSearch: Fn(DayInterval) + 'static,
+    {
+        *self.imp().on_search.borrow_mut() = Box::new(f);
+    }
+
+    pub fn set_interval(&self, start: chrono::NaiveDate, end: chrono::NaiveDate) {
+        self.imp().start.set_date(start);
+        self.imp().end.set_date(end);
+    }
+
+    pub fn interval(&self) -> DayInterval {
+        DayInterval {
+            start: self.imp().start.date(),
+            end: self.imp().end.date(),
+        }
+    }
+}
+
+impl Default for DateRangePicker {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.add_css_class("date-range-picker");
+
+        let search_button = gtk::Button::builder()
+            .css_classes(["date-range-picker__search-button"])
+            .label("Search")
+            .build();
+        search_button.connect_clicked({
+            let s = s.clone();
+            move |_| (s.imp().on_search.borrow())(s.interval())
+        });
+
+        let last_week_button = gtk::Button::builder()
+            .css_classes(["date-range-picker__range-button"])
+            .label("week")
+            .build();
+        last_week_button.connect_clicked({
+            let s = s.clone();
+            move |_| {
+                let end = Local::now().date_naive();
+                let start = end - Duration::days(7);
+                s.set_interval(start, end);
+                (s.imp().on_search.borrow())(s.interval());
+            }
+        });
+
+        let two_weeks_button = gtk::Button::builder()
+            .css_classes(["date-range-picker__range-button"])
+            .label("two weeks")
+            .build();
+        two_weeks_button.connect_clicked({
+            let s = s.clone();
+            move |_| {
+                let end = Local::now().date_naive();
+                let start = end - Duration::days(14);
+                s.set_interval(start, end);
+                (s.imp().on_search.borrow())(s.interval());
+            }
+        });
+
+        let last_month_button = gtk::Button::builder()
+            .css_classes(["date-range-picker__range-button"])
+            .label("month")
+            .build();
+        last_month_button.connect_clicked({
+            let s = s.clone();
+            move |_| {
+                let end = Local::now().date_naive();
+                let start = end - Months::new(1);
+                s.set_interval(start, end);
+                (s.imp().on_search.borrow())(s.interval());
+            }
+        });
+
+        let six_months_button = gtk::Button::builder()
+            .css_classes(["date-range-picker__range-button"])
+            .label("six months")
+            .build();
+        six_months_button.connect_clicked({
+            let s = s.clone();
+            move |_| {
+                let end = Local::now().date_naive();
+                let start = end - Months::new(6);
+                s.set_interval(start, end);
+                (s.imp().on_search.borrow())(s.interval());
+            }
+        });
+
+        let last_year_button = gtk::Button::builder()
+            .css_classes(["date-range-picker__range-button"])
+            .label("year")
+            .build();
+        last_year_button.connect_clicked({
+            let s = s.clone();
+            move |_| {
+                let end = Local::now().date_naive();
+                let start = end - Months::new(12);
+                s.set_interval(start, end);
+                (s.imp().on_search.borrow())(s.interval());
+            }
+        });
+
+        let date_row = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+        date_row.append(&s.imp().start);
+        date_row.append(&gtk::Label::new(Some("to")));
+        date_row.append(&s.imp().end);
+        date_row.append(&search_button);
+
+        let quick_picker = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+        quick_picker.append(&last_week_button);
+        quick_picker.append(&two_weeks_button);
+        quick_picker.append(&last_month_button);
+        quick_picker.append(&six_months_button);
+        quick_picker.append(&last_year_button);
+
+        s.append(&date_row);
+        s.append(&quick_picker);
+
+        s
+    }
+}

fitnesstrax/app/src/components/day.rs

@@ -0,0 +1,400 @@
+/*
+Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+// use chrono::NaiveDate;
+// use ft_core::TraxRecord;
+use crate::{
+    components::{
+        steps_editor, time_distance_summary, weight_field, ActionGroup, Steps, WeightLabel,
+    },
+    types::{DistanceFormatter, DurationFormatter, WeightFormatter},
+    view_models::DayDetailViewModel,
+};
+use emseries::{Record, RecordId};
+use ft_core::{TimeDistanceActivity, TraxRecord, TIME_DISTANCE_ACTIVITIES};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, rc::Rc};
+
+use super::{time_distance::TimeDistanceEdit, time_distance_detail};
+
+pub struct DaySummaryPrivate {
+    date: gtk::Label,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DaySummaryPrivate {
+    const NAME: &'static str = "DaySummary";
+    type Type = DaySummary;
+    type ParentType = gtk::Box;
+
+    fn new() -> Self {
+        let date = gtk::Label::builder()
+            .css_classes(["day-summary__date"])
+            .halign(gtk::Align::Start)
+            .build();
+        Self { date }
+    }
+}
+
+impl ObjectImpl for DaySummaryPrivate {}
+impl WidgetImpl for DaySummaryPrivate {}
+impl BoxImpl for DaySummaryPrivate {}
+
+glib::wrapper! {
+    /// The DaySummary displays one day's activities in a narrative style. This is meant to give
+    /// an overall feel of everything that happened during the day without going into details.
+    pub struct DaySummary(ObjectSubclass<DaySummaryPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl Default for DaySummary {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.set_css_classes(&["day-summary"]);
+
+        s.append(&s.imp().date);
+
+        s
+    }
+}
+
+impl DaySummary {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn set_data(&self, view_model: DayDetailViewModel) {
+        self.imp()
+            .date
+            .set_text(&view_model.date.format("%Y-%m-%d").to_string());
+
+        let row = gtk::Box::builder().build();
+
+        let weight_label = gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .css_classes(["day-summary__weight"])
+            .build();
+        if let Some(w) = view_model.weight() {
+            weight_label.set_label(&w.to_string())
+        }
+
+        let steps_label = gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .css_classes(["day-summary__steps"])
+            .build();
+        if let Some(s) = view_model.steps() {
+            steps_label.set_label(&format!("{} steps", s));
+        }
+
+        row.append(&weight_label);
+        row.append(&steps_label);
+        self.append(&row);
+
+        for activity in TIME_DISTANCE_ACTIVITIES {
+            let summary = view_model.time_distance_summary(activity);
+            if let Some(label) = time_distance_summary(
+                activity,
+                DistanceFormatter::from(summary.0),
+                DurationFormatter::from(summary.1),
+            ) {
+                self.append(&label);
+            }
+        }
+    }
+}
+
+#[derive(Default)]
+pub struct DayDetailPrivate {}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DayDetailPrivate {
+    const NAME: &'static str = "DayDetail";
+    type Type = DayDetail;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for DayDetailPrivate {}
+impl WidgetImpl for DayDetailPrivate {}
+impl BoxImpl for DayDetailPrivate {}
+
+glib::wrapper! {
+    pub struct DayDetail(ObjectSubclass<DayDetailPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl DayDetail {
+    pub fn new<OnEdit>(view_model: DayDetailViewModel, on_edit: OnEdit) -> Self
+    where
+        OnEdit: Fn() + 'static,
+    {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.set_hexpand(true);
+
+        s.append(
+            &ActionGroup::builder()
+                .primary_action("Edit", Box::new(on_edit))
+                .build(),
+        );
+
+        let top_row = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+        let weight_view = WeightLabel::new(view_model.weight().map(WeightFormatter::from));
+        top_row.append(&weight_view.widget());
+
+        let steps_view = Steps::new(view_model.steps());
+        top_row.append(&steps_view.widget());
+
+        s.append(&top_row);
+
+        let records = view_model.time_distance_records();
+        for emseries::Record { data, .. } in records {
+            s.append(&time_distance_detail(data));
+        }
+
+        s
+    }
+}
+
+pub struct DayEditPrivate {
+    on_finished: RefCell<Box<dyn Fn()>>,
+    #[allow(unused)]
+    workout_rows: RefCell<gtk::Box>,
+    view_model: RefCell<Option<DayDetailViewModel>>,
+}
+
+impl Default for DayEditPrivate {
+    fn default() -> Self {
+        Self {
+            on_finished: RefCell::new(Box::new(|| {})),
+            workout_rows: RefCell::new(
+                gtk::Box::builder()
+                    .orientation(gtk::Orientation::Vertical)
+                    .hexpand(true)
+                    .build(),
+            ),
+            view_model: RefCell::new(None),
+        }
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DayEditPrivate {
+    const NAME: &'static str = "DayEdit";
+    type Type = DayEdit;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for DayEditPrivate {}
+impl WidgetImpl for DayEditPrivate {}
+impl BoxImpl for DayEditPrivate {}
+
+glib::wrapper! {
+    pub struct DayEdit(ObjectSubclass<DayEditPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl DayEdit {
+    pub fn new<OnFinished>(view_model: DayDetailViewModel, on_finished: OnFinished) -> Self
+    where
+        OnFinished: Fn() + 'static,
+    {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.set_hexpand(true);
+        *s.imp().on_finished.borrow_mut() = Box::new(on_finished);
+        *s.imp().view_model.borrow_mut() = Some(view_model.clone());
+
+        let workout_buttons = workout_buttons(view_model.clone(), {
+            let s = s.clone();
+            move |workout| s.add_row(workout)
+        });
+
+        view_model
+            .records()
+            .into_iter()
+            .filter_map({
+                let s = s.clone();
+                move |record| match record.data {
+                    TraxRecord::TimeDistance(workout) => Some(TimeDistanceEdit::new(workout, {
+                        let s = s.clone();
+                        move |data| {
+                            s.update_workout(record.id, data);
+                        }
+                    })),
+                    _ => None,
+                }
+            })
+            .for_each(|row| s.imp().workout_rows.borrow().append(&row));
+
+        s.append(&control_buttons(&s, &view_model));
+        s.append(&weight_and_steps_row(&view_model));
+        s.append(&*s.imp().workout_rows.borrow());
+        s.append(&workout_buttons);
+
+        s
+    }
+
+    fn finish(&self) {
+        glib::spawn_future_local({
+            let s = self.clone();
+            async move {
+                let view_model = {
+                    let view_model = s.imp().view_model.borrow();
+                    view_model
+                        .as_ref()
+                        .expect("DayEdit has not been initialized with the view model")
+                        .clone()
+                };
+                let _ = view_model.async_save().await;
+                (s.imp().on_finished.borrow())()
+            }
+        });
+    }
+
+    fn add_row(&self, workout: Record<TraxRecord>) {
+        let workout_rows = self.imp().workout_rows.borrow();
+
+        #[allow(clippy::single_match)]
+        match workout.data {
+            TraxRecord::TimeDistance(r) => workout_rows.append(&TimeDistanceEdit::new(r, {
+                let s = self.clone();
+                move |data| {
+                    println!("update workout callback on workout: {:?}", workout.id);
+                    s.update_workout(workout.id, data)
+                }
+            })),
+
+            _ => {}
+        }
+    }
+
+    fn update_workout(&self, id: RecordId, data: ft_core::TimeDistance) {
+        if let Some(ref view_model) = *self.imp().view_model.borrow() {
+            let record = Record {
+                id,
+                data: TraxRecord::TimeDistance(data),
+            };
+            view_model.update_record(record);
+        }
+    }
+}
+
+fn control_buttons(s: &DayEdit, view_model: &DayDetailViewModel) -> ActionGroup {
+    ActionGroup::builder()
+        .primary_action("Save", {
+            let s = s.clone();
+            move || s.finish()
+        })
+        .secondary_action("Cancel", {
+            let s = s.clone();
+            let view_model = view_model.clone();
+            move || {
+                let s = s.clone();
+                let view_model = view_model.clone();
+                glib::spawn_future_local(async move {
+                    view_model.revert().await;
+                    s.finish();
+                });
+            }
+        })
+        .build()
+}
+
+fn weight_and_steps_row(view_model: &DayDetailViewModel) -> gtk::Box {
+    let row = gtk::Box::builder()
+        .orientation(gtk::Orientation::Horizontal)
+        .build();
+    row.append(
+        &weight_field(view_model.weight().map(WeightFormatter::from), {
+            let view_model = view_model.clone();
+            move |w| match w {
+                Some(w) => view_model.set_weight(*w),
+                None => eprintln!("have not implemented record delete"),
+            }
+        })
+        .widget(),
+    );
+
+    row.append(
+        &steps_editor(view_model.steps(), {
+            let view_model = view_model.clone();
+            move |s| match s {
+                Some(s) => view_model.set_steps(s),
+                None => eprintln!("have not implemented record delete"),
+            }
+        })
+        .widget(),
+    );
+
+    row
+}
+
+fn workout_buttons<AddRow>(view_model: DayDetailViewModel, add_row: AddRow) -> gtk::Box
+where
+    AddRow: Fn(Record<TraxRecord>) + 'static,
+{
+    let add_row = Rc::new(add_row);
+
+    let layout = gtk::Box::builder()
+        .orientation(gtk::Orientation::Horizontal)
+        .build();
+
+    for (activity, icon, label) in [
+        (
+            TimeDistanceActivity::Biking,
+            "cycling-symbolic",
+            "Bike Ride",
+        ),
+        (TimeDistanceActivity::Rowing, "rowing-symbolic", "Rowing"),
+        (TimeDistanceActivity::Running, "running-symbolic", "Run"),
+        (TimeDistanceActivity::Swimming, "swimming-symbolic", "Swim"),
+        (TimeDistanceActivity::Walking, "walking-symbolic", "Walk"),
+    ] {
+        let button = workout_button(activity, icon, label, view_model.clone(), {
+            let add_row = add_row.clone();
+            move |record| add_row(record)
+        });
+        layout.append(&button);
+    }
+
+    layout
+}
+
+fn workout_button<AddRow>(
+    activity: TimeDistanceActivity,
+    _icon: &str,
+    label: &str,
+    view_model: DayDetailViewModel,
+    add_row: AddRow,
+) -> gtk::Button
+where
+    AddRow: Fn(Record<TraxRecord>) + 'static,
+{
+    let button = gtk::Button::builder()
+        .label(label)
+        .width_request(64)
+        .height_request(64)
+        .build();
+    button.connect_clicked({
+        let view_model = view_model.clone();
+        move |_| {
+            let workout = view_model.new_time_distance(activity);
+            add_row(workout.map(TraxRecord::TimeDistance));
+        }
+    });
+    button
+}

fitnesstrax/app/src/components/mod.rs

@@ -0,0 +1,155 @@
+/*
+Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not,
+see <https://www.gnu.org/licenses/>.
+*/
+
+mod action_group;
+pub use action_group::ActionGroup;
+
+mod day;
+pub use day::{DayDetail, DayEdit, DaySummary};
+
+mod date_field;
+pub use date_field::DateField;
+
+mod date_range;
+pub use date_range::DateRangePicker;
+
+mod singleton;
+pub use singleton::{Singleton, SingletonImpl};
+
+mod steps;
+pub use steps::{steps_editor, Steps};
+
+mod text_entry;
+pub use text_entry::{distance_field, duration_field, time_field, weight_field, i32_field_builder, month_field_builder, TextEntry};
+
+mod time_distance;
+pub use time_distance::{time_distance_detail, time_distance_summary};
+
+mod weight;
+pub use weight::WeightLabel;
+
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, path::PathBuf, rc::Rc};
+
+pub struct FileChooserRowPrivate {
+    path: RefCell<Option<PathBuf>>,
+    label: gtk::Label,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for FileChooserRowPrivate {
+    const NAME: &'static str = "FileChooser";
+    type Type = FileChooserRow;
+    type ParentType = gtk::Box;
+
+    fn new() -> Self {
+        Self {
+            path: RefCell::new(None),
+            label: gtk::Label::builder().hexpand(true).build(),
+        }
+    }
+}
+
+impl ObjectImpl for FileChooserRowPrivate {}
+impl WidgetImpl for FileChooserRowPrivate {}
+impl BoxImpl for FileChooserRowPrivate {}
+
+glib::wrapper! {
+    pub struct FileChooserRow(ObjectSubclass<FileChooserRowPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl FileChooserRow {
+    pub fn new<F>(on_selected: F) -> Self
+    where
+        F: Fn(PathBuf) + 'static,
+    {
+        let s: Self = Object::builder().build();
+
+        s.set_css_classes(&["dialog-row", "card"]);
+        s.set_orientation(gtk::Orientation::Horizontal);
+        s.set_spacing(8);
+
+        // The database selection row should be a box that shows a default database path, along with a
+        // button that triggers a file chooser dialog. Once the dialog returns, the box should be
+        // updated to reflect the chosen path.
+        s.imp().label.set_text("No database selected");
+
+        let on_selected = Rc::new(Box::new(on_selected));
+
+        let import_button = gtk::Button::builder().label("Import a Database").build();
+
+        let handle_file_selection = Rc::new(Box::new({
+            let s = s.clone();
+            let on_selected = on_selected.clone();
+            move |file_id: Result<gio::File, glib::Error>| match file_id {
+                Ok(file_id) => match file_id.path() {
+                    Some(path) => {
+                        s.imp().label.set_text(path.to_str().unwrap());
+                        on_selected(path.clone());
+                        *s.imp().path.borrow_mut() = Some(path);
+                    }
+                    None => {
+                        *s.imp().path.borrow_mut() = None;
+                        s.imp().label.set_text("No database selected");
+                    }
+                },
+                Err(err) => println!("file opening failed: {}", err),
+            }
+        }));
+
+        import_button.connect_clicked({
+            let handle_file_selection = handle_file_selection.clone();
+            move |_| {
+                let no_window: Option<&gtk::Window> = None;
+                let not_cancellable: Option<&gio::Cancellable> = None;
+                let handle_file_selection = handle_file_selection.clone();
+                gtk::FileDialog::builder().build().open(
+                    no_window,
+                    not_cancellable,
+                    move |file_id| handle_file_selection(file_id),
+                );
+            }
+        });
+
+        let new_button = gtk::Button::builder().label("Create Database").build();
+        new_button.connect_clicked({
+            let handle_file_selection = handle_file_selection.clone();
+            move |_| {
+                let no_window: Option<&gtk::Window> = None;
+                let not_cancellable: Option<&gio::Cancellable> = None;
+                let handle_file_selection = handle_file_selection.clone();
+                gtk::FileDialog::builder().build().save(
+                    no_window,
+                    not_cancellable,
+                    move |file_id| handle_file_selection(file_id),
+                );
+            }
+        });
+
+        s.imp().label.set_halign(gtk::Align::Start);
+        s.append(&s.imp().label);
+        s.append(&import_button);
+        s.append(&new_button);
+
+        s
+    }
+
+    pub fn path(&self) -> Option<PathBuf> {
+        self.imp().path.borrow().clone()
+    }
+}

fitnesstrax/app/src/components/singleton.rs

@@ -0,0 +1,71 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+//! A Widget container for a single components
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::cell::RefCell;
+
+pub struct SingletonPrivate {
+    widget: RefCell<gtk::Widget>,
+}
+
+impl Default for SingletonPrivate {
+    fn default() -> Self {
+        Self {
+            widget: RefCell::new(gtk::Label::new(None).upcast()),
+        }
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for SingletonPrivate {
+    const NAME: &'static str = "Singleton";
+    type Type = Singleton;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for SingletonPrivate {}
+impl WidgetImpl for SingletonPrivate {}
+impl BoxImpl for SingletonPrivate {}
+
+glib::wrapper! {
+    /// The Singleton component contains exactly one child widget. The swap function makes it easy
+    /// to handle the job of swapping that child out for a different one.
+    pub struct Singleton(ObjectSubclass<SingletonPrivate>) @extends gtk::Box, gtk::Widget;
+}
+
+impl Default for Singleton {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+
+        s.append(&*s.imp().widget.borrow());
+
+        s
+    }
+}
+
+impl Singleton {
+    pub fn swap(&self, new_widget: &impl IsA<gtk::Widget>) {
+        let new_widget = new_widget.clone().upcast();
+        self.remove(&*self.imp().widget.borrow());
+        self.append(&new_widget);
+        *self.imp().widget.borrow_mut() = new_widget;
+    }
+}
+
+pub trait SingletonImpl: WidgetImpl + BoxImpl {}
+unsafe impl<T: SingletonImpl> IsSubclassable<T> for Singleton {}

fitnesstrax/app/src/components/steps.rs

@@ -0,0 +1,60 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{components::TextEntry, types::ParseError};
+use gtk::prelude::*;
+
+#[derive(Default)]
+pub struct Steps {
+    label: gtk::Label,
+}
+
+impl Steps {
+    pub fn new(steps: Option<u32>) -> Self {
+        let label = gtk::Label::builder()
+            .css_classes(["card", "step-view"])
+            .can_focus(true)
+            .build();
+
+        match steps {
+            Some(s) => label.set_text(&format!("{}", s)),
+            None => label.set_text("No steps recorded"),
+        }
+
+        Self { label }
+    }
+
+    pub fn widget(&self) -> gtk::Widget {
+        self.label.clone().upcast()
+    }
+}
+
+pub fn steps_editor<OnUpdate>(value: Option<u32>, on_update: OnUpdate) -> TextEntry<u32>
+where
+    OnUpdate: Fn(Option<u32>) + 'static,
+{
+    let text_entry = TextEntry::builder()
+        .with_placeholder(   "0".to_owned())
+        .with_renderer(|v| format!("{}", v))
+        .with_parser(|v| v.parse::<u32>().map_err(|_| ParseError))
+        .with_on_update(on_update);
+
+    if let Some(time) = value {
+        text_entry.with_value(time)
+    } else {
+        text_entry
+    }.build()
+}

fitnesstrax/app/src/components/text_entry.rs

@@ -0,0 +1,373 @@
+/*
+Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::types::{
+    DistanceFormatter, DurationFormatter, FormatOption, ParseError, TimeFormatter, WeightFormatter,
+};
+use gtk::prelude::*;
+use std::{cell::RefCell, rc::Rc};
+
+pub type Parser<T> = dyn Fn(&str) -> Result<T, ParseError>;
+pub type OnUpdate<T> = dyn Fn(Option<T>);
+
+// TextEntry is not a proper widget because I was never able to figure out how to do a type parameterization on a GTK widget.
+#[derive(Clone)]
+pub struct TextEntry<T: Clone + std::fmt::Debug> {
+    value: Rc<RefCell<Option<T>>>,
+
+    widget: gtk::Entry,
+    renderer: Rc<dyn Fn(&T) -> String>,
+    parser: Rc<Parser<T>>,
+    on_update: Rc<OnUpdate<T>>,
+}
+
+impl<T: Clone + std::fmt::Debug> std::fmt::Debug for TextEntry<T> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        write!(
+            f,
+            "{{ value: {:?}, widget: {:?} }}",
+            self.value, self.widget
+        )
+    }
+}
+
+// I do not understand why the data should be 'static.
+impl<T: Clone + std::fmt::Debug + 'static> TextEntry<T> {
+    fn from_builder(builder: TextEntryBuilder<T>) -> TextEntry<T> {
+        let widget = gtk::Entry::builder()
+            .placeholder_text(builder.placeholder)
+            .build();
+        if let Some(ref v) = builder.value {
+            widget.set_text(&(builder.renderer)(v))
+        }
+
+        let s = Self {
+            value: Rc::new(RefCell::new(builder.value)),
+            widget,
+            renderer: Rc::new(builder.renderer),
+            parser: Rc::new(builder.parser),
+            on_update: Rc::new(builder.on_update),
+        };
+
+        s.widget.buffer().connect_text_notify({
+            let s = s.clone();
+            move |buffer| s.handle_text_change(buffer)
+        });
+
+        if let Some(length) = builder.length {
+            s.widget.set_max_length(length.try_into().unwrap());
+        }
+
+        // let classes: Vec<&str> = builder.css_classes.iter(|v| v.as_ref()).collect();
+        let classes: Vec<&str> = builder.css_classes.iter().map(AsRef::as_ref).collect();
+        s.widget.set_css_classes(&classes);
+
+        s
+    }
+
+    pub fn builder() -> TextEntryBuilder<T> {
+        TextEntryBuilder::default()
+    }
+
+    pub fn set_value(&self, val: Option<T>) {
+        if let Some(ref v) = val {
+            self.widget.set_text(&(self.renderer)(v));
+        }
+    }
+
+    fn handle_text_change(&self, buffer: &gtk::EntryBuffer) {
+        if buffer.text().is_empty() {
+            *self.value.borrow_mut() = None;
+            self.widget.remove_css_class("error");
+            (self.on_update)(None);
+            return;
+        }
+        match (self.parser)(buffer.text().as_str()) {
+            Ok(v) => {
+                *self.value.borrow_mut() = Some(v.clone());
+                self.widget.remove_css_class("error");
+                (self.on_update)(Some(v));
+            }
+            // need to change the border to provide a visual indicator of an error
+            Err(_) => {
+                self.widget.add_css_class("error");
+            }
+        }
+    }
+
+    pub fn widget(&self) -> gtk::Widget {
+        self.widget.clone().upcast::<gtk::Widget>()
+    }
+
+    #[cfg(test)]
+    fn has_parse_error(&self) -> bool {
+        self.widget.has_css_class("error")
+    }
+}
+
+pub struct TextEntryBuilder<T: Clone + std::fmt::Debug + 'static> {
+    placeholder: String,
+    value: Option<T>,
+    length: Option<usize>,
+    css_classes: Vec<String>,
+    renderer: Box<dyn Fn(&T) -> String>,
+    parser: Box<Parser<T>>,
+    on_update: Box<OnUpdate<T>>,
+}
+
+impl<T: Clone + std::fmt::Debug + 'static> Default for TextEntryBuilder<T> {
+    fn default() -> TextEntryBuilder<T> {
+        TextEntryBuilder {
+            placeholder: "".to_owned(),
+            value: None,
+            length: None,
+            css_classes: vec![],
+            renderer: Box::new(|_| "".to_owned()),
+            parser: Box::new(|_| Err(ParseError)),
+            on_update: Box::new(|_| {}),
+        }
+    }
+}
+
+impl<T: Clone + std::fmt::Debug + 'static> TextEntryBuilder<T> {
+    pub fn build(self) -> TextEntry<T> {
+        TextEntry::from_builder(self)
+    }
+
+    pub fn with_placeholder(self, placeholder: String) -> Self {
+        Self {
+            placeholder,
+            ..self
+        }
+    }
+
+    pub fn with_value(self, value: T) -> Self {
+        Self {
+            value: Some(value),
+            ..self
+        }
+    }
+
+    pub fn with_length(self, length: usize) -> Self {
+        Self {
+            length: Some(length),
+            ..self
+        }
+    }
+
+    pub fn with_css_classes(self, classes: Vec<String>) -> Self {
+        Self {
+            css_classes: classes,
+            ..self
+        }
+    }
+
+    pub fn with_renderer(self, renderer: impl Fn(&T) -> String + 'static) -> Self {
+        Self {
+            renderer: Box::new(renderer),
+            ..self
+        }
+    }
+
+    pub fn with_parser(self, parser: impl Fn(&str) -> Result<T, ParseError> + 'static) -> Self {
+        Self {
+            parser: Box::new(parser),
+            ..self
+        }
+    }
+
+    pub fn with_on_update(self, on_update: impl Fn(Option<T>) + 'static) -> Self {
+        Self {
+            on_update: Box::new(on_update),
+            ..self
+        }
+    }
+}
+
+pub fn time_field<OnUpdate>(
+    value: Option<TimeFormatter>,
+    on_update: OnUpdate,
+) -> TextEntry<TimeFormatter>
+where
+    OnUpdate: Fn(Option<TimeFormatter>) + 'static,
+{
+    let text_entry = TextEntry::builder()
+        .with_placeholder("HH:MM".to_owned())
+        .with_renderer(|val: &TimeFormatter| val.format(FormatOption::Abbreviated))
+        .with_parser(TimeFormatter::parse)
+        .with_on_update(on_update);
+
+    if let Some(time) = value {
+        text_entry.with_value(time)
+    } else {
+        text_entry
+    }
+    .build()
+}
+
+pub fn distance_field<OnUpdate>(
+    value: Option<DistanceFormatter>,
+    on_update: OnUpdate,
+) -> TextEntry<DistanceFormatter>
+where
+    OnUpdate: Fn(Option<DistanceFormatter>) + 'static,
+{
+    let text_entry = TextEntry::builder()
+        .with_placeholder("0 km".to_owned())
+        .with_renderer(|val: &DistanceFormatter| val.format(FormatOption::Abbreviated))
+        .with_parser(DistanceFormatter::parse)
+        .with_on_update(on_update);
+
+    if let Some(distance) = value {
+        text_entry.with_value(distance)
+    } else {
+        text_entry
+    }
+    .build()
+}
+
+pub fn duration_field<OnUpdate>(
+    value: Option<DurationFormatter>,
+    on_update: OnUpdate,
+) -> TextEntry<DurationFormatter>
+where
+    OnUpdate: Fn(Option<DurationFormatter>) + 'static,
+{
+    let text_entry = TextEntry::builder()
+        .with_placeholder("0 m".to_owned())
+        .with_renderer(|val: &DurationFormatter| val.format(FormatOption::Abbreviated))
+        .with_parser(DurationFormatter::parse)
+        .with_on_update(on_update);
+
+    if let Some(duration) = value {
+        text_entry.with_value(duration)
+    } else {
+        text_entry
+    }
+    .build()
+}
+pub fn weight_field<OnUpdate>(
+    weight: Option<WeightFormatter>,
+    on_update: OnUpdate,
+) -> TextEntry<WeightFormatter>
+where
+    OnUpdate: Fn(Option<WeightFormatter>) + 'static,
+{
+    let text_entry = TextEntry::builder()
+        .with_placeholder("0 kg".to_owned())
+        .with_renderer(|val: &WeightFormatter| val.format(FormatOption::Abbreviated))
+        .with_parser(WeightFormatter::parse)
+        .with_on_update(on_update);
+    if let Some(weight) = weight {
+        text_entry.with_value(weight)
+    } else {
+        text_entry
+    }
+    .build()
+}
+
+pub fn i32_field_builder() -> TextEntryBuilder<i32>
+{
+    TextEntry::builder()
+        .with_placeholder("0".to_owned())
+        .with_renderer(|val| format!("{}", val))
+        .with_parser(|v| v.parse::<i32>().map_err(|_| ParseError))
+}
+
+pub fn month_field_builder() -> TextEntryBuilder<u32>
+{
+    TextEntry::builder()
+        .with_placeholder("0".to_owned())
+        .with_renderer(|val| format!("{}", val))
+        .with_parser(|v| {
+            let val = v.parse::<u32>().map_err(|_| ParseError)?;
+            if val == 0 || val > 12 {
+                return Err(ParseError);
+            }
+            Ok(val)
+        })
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::gtk_init::gtk_init;
+
+    fn setup_u32_entry() -> (Rc<RefCell<Option<u32>>>, TextEntry<u32>) {
+        let current_value = Rc::new(RefCell::new(None));
+
+        let entry = TextEntry::builder()
+            .with_placeholder("step count".to_owned())
+            .with_renderer(|steps| format!("{}", steps))
+            .with_parser(|v| v.parse::<u32>().map_err(|_| ParseError))
+            .with_on_update({
+                let current_value = current_value.clone();
+                move |v| *current_value.borrow_mut() = v
+            })
+            .build();
+
+        (current_value, entry)
+    }
+
+    #[test]
+    fn it_responds_to_field_changes() {
+        gtk_init();
+        let (current_value, entry) = setup_u32_entry();
+        let buffer = entry.widget.buffer();
+
+        buffer.set_text("1");
+        assert_eq!(*current_value.borrow(), Some(1));
+
+        buffer.set_text("15");
+        assert_eq!(*current_value.borrow(), Some(15));
+    }
+
+    #[test]
+    fn it_preserves_last_value_in_parse_error() {
+        crate::gtk_init::gtk_init();
+        let (current_value, entry) = setup_u32_entry();
+        let buffer = entry.widget.buffer();
+
+        buffer.set_text("1");
+        assert_eq!(*current_value.borrow(), Some(1));
+
+        buffer.set_text("a5");
+        assert_eq!(*current_value.borrow(), Some(1));
+        assert!(entry.has_parse_error());
+    }
+
+    #[test]
+    fn it_update_on_empty_strings() {
+        gtk_init();
+        let (current_value, entry) = setup_u32_entry();
+        let buffer = entry.widget.buffer();
+
+        buffer.set_text("1");
+        assert_eq!(*current_value.borrow(), Some(1));
+        buffer.set_text("");
+        assert_eq!(*current_value.borrow(), None);
+
+        buffer.set_text("1");
+        assert_eq!(*current_value.borrow(), Some(1));
+        buffer.set_text("1a");
+        assert_eq!(*current_value.borrow(), Some(1));
+        assert!(entry.has_parse_error());
+
+        buffer.set_text("");
+        assert_eq!(*current_value.borrow(), None);
+        assert!(!entry.has_parse_error());
+    }
+}

fitnesstrax/app/src/components/time_distance.rs

@@ -0,0 +1,271 @@
+/*
+Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{
+    components::{distance_field, duration_field, time_field},
+    types::{DistanceFormatter, DurationFormatter, FormatOption, TimeFormatter},
+};
+use dimensioned::si;
+use ft_core::{TimeDistance, TimeDistanceActivity, TIME_DISTANCE_ACTIVITIES};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, rc::Rc};
+
+pub fn time_distance_summary(
+    activity: TimeDistanceActivity,
+    distance: DistanceFormatter,
+    duration: DurationFormatter,
+) -> Option<gtk::Label> {
+    let text = match (*distance > si::M, *duration > si::S) {
+        (true, true) => Some(format!(
+            "{} of {:?} in {}",
+            distance.format(FormatOption::Full),
+            activity,
+            duration.format(FormatOption::Full)
+        )),
+        (true, false) => Some(format!(
+            "{} of {:?}",
+            distance.format(FormatOption::Full),
+            activity
+        )),
+        (false, true) => Some(format!(
+            "{} of {:?}",
+            duration.format(FormatOption::Full),
+            activity
+        )),
+        (false, false) => None,
+    };
+
+    text.map(|text| gtk::Label::builder().halign(gtk::Align::Start).label(&text).build())
+}
+
+pub fn time_distance_detail(record: ft_core::TimeDistance) -> gtk::Box {
+    let layout = gtk::Box::builder()
+        .orientation(gtk::Orientation::Vertical)
+        .hexpand(true)
+        .build();
+    let first_row = gtk::Box::builder().homogeneous(true).build();
+
+    first_row.append(
+        &gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .label(record.datetime.format("%H:%M").to_string())
+            .build(),
+    );
+
+    first_row.append(
+        &gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .label(format!("{:?}", record.activity))
+            .build(),
+    );
+
+    first_row.append(
+        &gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .label(
+                record
+                    .distance
+                    .map(|dist| DistanceFormatter::from(dist).format(FormatOption::Abbreviated))
+                    .unwrap_or("".to_owned()),
+            )
+            .build(),
+    );
+
+    first_row.append(
+        &gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .label(
+                record
+                    .duration
+                    .map(|duration| {
+                        DurationFormatter::from(duration).format(FormatOption::Abbreviated)
+                    })
+                    .unwrap_or("".to_owned()),
+            )
+            .build(),
+    );
+
+    layout.append(&first_row);
+
+    layout.append(
+        &gtk::Label::builder()
+            .halign(gtk::Align::Start)
+            .label(
+                record
+                    .comments
+                    .map(|comments| comments.to_string())
+                    .unwrap_or("".to_owned()),
+            )
+            .build(),
+    );
+
+    layout
+}
+
+type OnUpdate = Rc<RefCell<Box<dyn Fn(TimeDistance)>>>;
+
+pub struct TimeDistanceEditPrivate {
+    #[allow(unused)]
+    workout: RefCell<ft_core::TimeDistance>,
+    on_update: OnUpdate,
+}
+
+impl Default for TimeDistanceEditPrivate {
+    fn default() -> Self {
+        Self {
+            workout: RefCell::new(TimeDistance {
+                datetime: chrono::Utc::now().into(),
+                activity: TimeDistanceActivity::Biking,
+                duration: None,
+                distance: None,
+                comments: None,
+            }),
+            on_update: Rc::new(RefCell::new(Box::new(|_| {}))),
+        }
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for TimeDistanceEditPrivate {
+    const NAME: &'static str = "TimeDistanceEdit";
+    type Type = TimeDistanceEdit;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for TimeDistanceEditPrivate {}
+impl WidgetImpl for TimeDistanceEditPrivate {}
+impl BoxImpl for TimeDistanceEditPrivate {}
+
+glib::wrapper! {
+    pub struct TimeDistanceEdit(ObjectSubclass<TimeDistanceEditPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl Default for TimeDistanceEdit {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.set_hexpand(true);
+        s.set_css_classes(&["time-distance-edit"]);
+
+        s
+    }
+}
+
+impl TimeDistanceEdit {
+    pub fn new<OnUpdate>(workout: TimeDistance, on_update: OnUpdate) -> Self
+    where
+        OnUpdate: Fn(TimeDistance) + 'static,
+    {
+        let s = Self::default();
+
+        *s.imp().workout.borrow_mut() = workout.clone();
+        *s.imp().on_update.borrow_mut() = Box::new(on_update);
+
+        let details_row = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+
+        details_row.append(
+            &time_field(
+                Some(TimeFormatter::from(workout.datetime.naive_local().time())),
+                {
+                    let s = s.clone();
+                    move |t| s.update_time(t)
+                },
+            )
+            .widget(),
+        );
+        details_row.append(&s.activity_menu(workout.activity));
+        details_row.append(
+            &distance_field(workout.distance.map(DistanceFormatter::from), {
+                let s = s.clone();
+                move |d| s.update_distance(d)
+            })
+            .widget(),
+        );
+        details_row.append(
+            &duration_field(workout.duration.map(DurationFormatter::from), {
+                let s = s.clone();
+                move |d| s.update_duration(d)
+            })
+            .widget(),
+        );
+        s.append(&details_row);
+        s.append(&gtk::Entry::new());
+
+        s
+    }
+
+    fn update_time(&self, time: Option<TimeFormatter>) {
+        if let Some(time_formatter) = time {
+            let mut workout = self.imp().workout.borrow_mut();
+            let tz = workout.datetime.timezone();
+            let new_time = workout
+                .datetime
+                .date_naive()
+                .and_time(*time_formatter)
+                .and_local_timezone(tz)
+                .unwrap()
+                .fixed_offset();
+            workout.datetime = new_time;
+            (self.imp().on_update.borrow())(workout.clone());
+        }
+    }
+
+    fn update_workout_type(&self, type_: TimeDistanceActivity) {
+        let mut workout = self.imp().workout.borrow_mut();
+        workout.activity = type_;
+        (self.imp().on_update.borrow())(workout.clone())
+    }
+
+    fn update_distance(&self, distance: Option<DistanceFormatter>) {
+        let mut workout = self.imp().workout.borrow_mut();
+        workout.distance = distance.map(|d| *d);
+        (self.imp().on_update.borrow())(workout.clone());
+    }
+
+    fn update_duration(&self, duration: Option<DurationFormatter>) {
+        let mut workout = self.imp().workout.borrow_mut();
+        workout.duration = duration.map(|d| *d);
+        (self.imp().on_update.borrow())(workout.clone());
+    }
+
+    fn activity_menu(&self, selected: TimeDistanceActivity) -> gtk::DropDown {
+        let options = TIME_DISTANCE_ACTIVITIES
+            .iter()
+            .map(|item| format!("{:?}", item))
+            .collect::<Vec<String>>();
+
+        let options = options.iter().map(|o| o.as_ref()).collect::<Vec<&str>>();
+
+        let selected_idx = TIME_DISTANCE_ACTIVITIES
+            .iter()
+            .position(|&v| v == selected)
+            .unwrap_or(0);
+
+        let menu = gtk::DropDown::from_strings(&options);
+        menu.set_selected(selected_idx as u32);
+        menu.connect_selected_item_notify({
+            let s = self.clone();
+            move |menu| {
+                let new_item = TIME_DISTANCE_ACTIVITIES[menu.selected() as usize];
+                s.update_workout_type(new_item);
+            }
+        });
+        menu
+    }
+}

fitnesstrax/app/src/components/weight.rs

@@ -0,0 +1,42 @@
+/*
+Copyright 2023-2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::types::{FormatOption, WeightFormatter};
+use gtk::prelude::*;
+
+pub struct WeightLabel {
+    label: gtk::Label,
+}
+
+impl WeightLabel {
+    pub fn new(weight: Option<WeightFormatter>) -> Self {
+        let label = gtk::Label::builder()
+            .css_classes(["card", "weight-view"])
+            .can_focus(true)
+            .build();
+
+        match weight {
+            Some(w) => label.set_text(&w.format(FormatOption::Abbreviated)),
+            None => label.set_text("No weight recorded"),
+        }
+
+        Self { label }
+    }
+
+    pub fn widget(&self) -> gtk::Widget {
+        self.label.clone().upcast()
+    }
+}

fitnesstrax/app/src/gtk_init.rs

@@ -0,0 +1,10 @@
+use std::sync::Once;
+
+static INITIALIZED: Once = Once::new();
+
+pub fn gtk_init() {
+    INITIALIZED.call_once(|| {
+        eprintln!("initializing GTK");
+        let _ = gtk::init();
+    });
+}

fitnesstrax/app/src/main.rs

@@ -0,0 +1,101 @@
+/*
+Copyright 2023 - 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+mod about;
+mod app;
+mod app_window;
+mod components;
+#[cfg(test)]
+mod gtk_init;
+mod types;
+mod view_models;
+mod views;
+
+use adw::prelude::*;
+use app_window::AppWindow;
+use gio::ActionEntry;
+use std::{env, path::PathBuf};
+
+const APP_ID_DEV: &str = "com.luminescent-dreams.fitnesstrax.dev";
+const APP_ID_PROD: &str = "com.luminescent-dreams.fitnesstrax";
+
+const RESOURCE_BASE_PATH: &str = "/com/luminescent-dreams/fitnesstrax/";
+
+fn setup_app_about_action(app: &adw::Application) {
+    let action = ActionEntry::builder("about")
+        .activate(|_app: &adw::Application, _, _| {
+            let window = about::AboutWindow::default();
+            window.present();
+        }).build();
+    app.add_action_entries([action]);
+}
+
+/// Sets up an application-global action, `app.quit`, which will terminate the application.
+fn setup_app_close_action(app: &adw::Application) {
+    let action = ActionEntry::builder("quit")
+        .activate(|app: &adw::Application, _, _| {
+            // right now, stopping the application is dirt simple. But we could use this
+            // block to add extra code that does additional shutdown steps if we ever want
+            // some states that shouldn't be discarded.
+            app.quit();
+        })
+        .build();
+    app.add_action_entries([action]);
+    app.set_accels_for_action("app.quit", &["<Ctrl>Q"]);
+}
+
+fn main() {
+    // I still don't fully understand gio resources. resources_register_include! is convenient
+    // because I don't have to deal with filesystem locations at runtime. However, I think other
+    // GTK applications do that rather than compiling the resources directly into the app. So, I'm
+    // unclear as to how I want to handle this.
+    gio::resources_register_include!("com.luminescent-dreams.fitnesstrax.gresource")
+        .expect("to register resources");
+
+    let app_id = if std::env::var_os("ENV") == Some("dev".into()) {
+        APP_ID_DEV
+    } else {
+        APP_ID_PROD
+    };
+
+    let settings = gio::Settings::new(app_id);
+    let ft_app = app::App::new({
+        let path = settings.string("series-path");
+        if path.is_empty() {
+            None
+        } else {
+            Some(PathBuf::from(path))
+        }
+    });
+
+    let adw_app = adw::Application::builder()
+        .application_id(app_id)
+        .resource_base_path(RESOURCE_BASE_PATH)
+        .build();
+
+    adw_app.connect_activate(move |adw_app| {
+        let icon_theme = gtk::IconTheme::for_display(&gdk::Display::default().unwrap());
+        icon_theme.add_resource_path(&(RESOURCE_BASE_PATH.to_owned() + "/icons/scalable/actions"));
+
+        setup_app_about_action(adw_app);
+        setup_app_close_action(adw_app);
+
+        AppWindow::new(app_id, RESOURCE_BASE_PATH, adw_app, ft_app.clone());
+    });
+
+    let args: Vec<String> = env::args().collect();
+    ApplicationExtManual::run_with_args(&adw_app, &args);
+}

fitnesstrax/app/src/types.rs

@@ -0,0 +1,349 @@
+use chrono::{Local, NaiveDate};
+use dimensioned::si;
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct ParseError;
+
+// This interval doesn't feel right, either. The idea that I have a specific interval type for just
+// NaiveDate is odd. This should be genericized, as should the iterator. Also, it shouldn't live
+// here, but in utilities.
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct DayInterval {
+    pub start: NaiveDate,
+    pub end: NaiveDate,
+}
+
+impl Default for DayInterval {
+    fn default() -> Self {
+        Self {
+            start: (Local::now() - chrono::Duration::days(7)).date_naive(),
+            end: Local::now().date_naive(),
+        }
+    }
+}
+
+impl DayInterval {
+    pub fn days(&self) -> impl Iterator<Item = NaiveDate> {
+        DayIterator {
+            current: self.start,
+            end: self.end,
+        }
+    }
+}
+
+struct DayIterator {
+    current: NaiveDate,
+    end: NaiveDate,
+}
+
+impl Iterator for DayIterator {
+    type Item = NaiveDate;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.current <= self.end {
+            let val = self.current;
+            self.current += chrono::Duration::days(1);
+            Some(val)
+        } else {
+            None
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum FormatOption {
+    Abbreviated,
+    #[allow(unused)]
+    Full,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub struct TimeFormatter(chrono::NaiveTime);
+
+impl TimeFormatter {
+    #[allow(unused)]
+    pub fn format(&self, option: FormatOption) -> String {
+        match option {
+            FormatOption::Abbreviated => self.0.format("%H:%M"),
+            FormatOption::Full => self.0.format("%H:%M:%S"),
+        }
+        .to_string()
+    }
+
+    #[allow(unused)]
+    pub fn parse(s: &str) -> Result<TimeFormatter, ParseError> {
+        let parts = s
+            .split(':')
+            .map(|part| part.parse::<u32>().map_err(|_| ParseError))
+            .collect::<Result<Vec<u32>, ParseError>>()?;
+        match parts.len() {
+            0 => Err(ParseError),
+            1 => Err(ParseError),
+            2 => chrono::NaiveTime::from_hms_opt(parts[0], parts[1], 0)
+                .map(|v| TimeFormatter(v))
+                .ok_or(ParseError),
+            3 => chrono::NaiveTime::from_hms_opt(parts[0], parts[1], parts[2])
+                .map(|v| TimeFormatter(v))
+                .ok_or(ParseError),
+            _ => Err(ParseError),
+        }
+    }
+}
+
+impl std::ops::Deref for TimeFormatter {
+    type Target = chrono::NaiveTime;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl From<chrono::NaiveTime> for TimeFormatter {
+    fn from(value: chrono::NaiveTime) -> Self {
+        Self(value)
+    }
+}
+
+#[derive(Clone, Copy, Debug, Default, PartialEq, PartialOrd)]
+pub struct WeightFormatter(si::Kilogram<f64>);
+
+impl WeightFormatter {
+    #[allow(unused)]
+    pub fn format(&self, option: FormatOption) -> String {
+        match option {
+            FormatOption::Abbreviated => format!("{} kg", self.0.value_unsafe),
+            FormatOption::Full => format!("{} kilograms", self.0.value_unsafe),
+        }
+    }
+
+    #[allow(unused)]
+    pub fn parse(s: &str) -> Result<WeightFormatter, ParseError> {
+        s.parse::<f64>()
+            .map(|w| WeightFormatter(w * si::KG))
+            .map_err(|_| ParseError)
+    }
+}
+
+impl std::ops::Add for WeightFormatter {
+    type Output = WeightFormatter;
+    fn add(self, rside: Self) -> Self::Output {
+        Self::Output::from(self.0 + rside.0)
+    }
+}
+
+impl std::ops::Sub for WeightFormatter {
+    type Output = WeightFormatter;
+    fn sub(self, rside: Self) -> Self::Output {
+        Self::Output::from(self.0 - rside.0)
+    }
+}
+
+impl std::ops::Deref for WeightFormatter {
+    type Target = si::Kilogram<f64>;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl From<si::Kilogram<f64>> for WeightFormatter {
+    fn from(value: si::Kilogram<f64>) -> Self {
+        Self(value)
+    }
+}
+
+#[derive(Clone, Copy, Debug, Default, PartialEq, PartialOrd)]
+pub struct DistanceFormatter(si::Meter<f64>);
+
+impl DistanceFormatter {
+    #[allow(unused)]
+    pub fn format(&self, option: FormatOption) -> String {
+        match option {
+            FormatOption::Abbreviated => format!("{} km", self.0.value_unsafe / 1000.),
+            FormatOption::Full => format!("{} kilometers", self.0.value_unsafe / 1000.),
+        }
+    }
+
+    #[allow(unused)]
+    pub fn parse(s: &str) -> Result<DistanceFormatter, ParseError> {
+        let value = s.parse::<f64>().map_err(|_| ParseError)?;
+        Ok(DistanceFormatter(value * 1000. * si::M))
+    }
+}
+
+impl std::ops::Add for DistanceFormatter {
+    type Output = DistanceFormatter;
+    fn add(self, rside: Self) -> Self::Output {
+        Self::Output::from(self.0 + rside.0)
+    }
+}
+
+impl std::ops::Sub for DistanceFormatter {
+    type Output = DistanceFormatter;
+    fn sub(self, rside: Self) -> Self::Output {
+        Self::Output::from(self.0 - rside.0)
+    }
+}
+
+impl std::ops::Deref for DistanceFormatter {
+    type Target = si::Meter<f64>;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl From<si::Meter<f64>> for DistanceFormatter {
+    fn from(value: si::Meter<f64>) -> Self {
+        Self(value)
+    }
+}
+
+#[derive(Clone, Copy, Debug, Default, PartialEq, PartialOrd)]
+pub struct DurationFormatter(si::Second<f64>);
+
+impl DurationFormatter {
+    #[allow(unused)]
+    pub fn format(&self, option: FormatOption) -> String {
+        let (hours, minutes) = self.hours_and_minutes();
+        let (h, m) = match option {
+            FormatOption::Abbreviated => ("h", "m"),
+            FormatOption::Full => (" hours", " minutes"),
+        };
+        if hours > 0 {
+            format!("{}{} {}{}", hours, h, minutes, m)
+        } else {
+            format!("{}{}", minutes, m)
+        }
+    }
+
+    #[allow(unused)]
+    pub fn parse(s: &str) -> Result<DurationFormatter, ParseError> {
+        let value = s.parse::<f64>().map_err(|_| ParseError)?;
+        Ok(DurationFormatter(value * 60. * si::S))
+    }
+
+    #[allow(unused)]
+    fn hours_and_minutes(&self) -> (i64, i64) {
+        let minutes: i64 = (self.0.value_unsafe / 60.).round() as i64;
+        let hours: i64 = minutes / 60;
+        let minutes = minutes - (hours * 60);
+        (hours, minutes)
+    }
+}
+
+impl std::ops::Add for DurationFormatter {
+    type Output = DurationFormatter;
+    fn add(self, rside: Self) -> Self::Output {
+        Self::Output::from(self.0 + rside.0)
+    }
+}
+
+impl std::ops::Sub for DurationFormatter {
+    type Output = DurationFormatter;
+    fn sub(self, rside: Self) -> Self::Output {
+        Self::Output::from(self.0 - rside.0)
+    }
+}
+
+impl std::ops::Deref for DurationFormatter {
+    type Target = si::Second<f64>;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl From<si::Second<f64>> for DurationFormatter {
+    fn from(value: si::Second<f64>) -> Self {
+        Self(value)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use dimensioned::si;
+
+    #[test]
+    fn it_parses_weight_values() {
+        assert_eq!(
+            WeightFormatter::parse("15.3"),
+            Ok(WeightFormatter(15.3 * si::KG))
+        );
+        assert_eq!(WeightFormatter::parse("15.ab"), Err(ParseError));
+    }
+
+    #[test]
+    fn it_formats_weight_values() {
+        assert_eq!(
+            WeightFormatter::from(15.3 * si::KG).format(FormatOption::Abbreviated),
+            "15.3 kg"
+        );
+        assert_eq!(
+            WeightFormatter::from(15.3 * si::KG).format(FormatOption::Full),
+            "15.3 kilograms"
+        );
+    }
+
+    #[test]
+    fn it_parses_distance_values() {
+        assert_eq!(
+            DistanceFormatter::parse("70"),
+            Ok(DistanceFormatter(70000. * si::M))
+        );
+        assert_eq!(DistanceFormatter::parse("15.ab"), Err(ParseError));
+    }
+
+    #[test]
+    fn it_formats_distance_values() {
+        assert_eq!(
+            DistanceFormatter::from(70000. * si::M).format(FormatOption::Abbreviated),
+            "70 km"
+        );
+        assert_eq!(
+            DistanceFormatter::from(70000. * si::M).format(FormatOption::Full),
+            "70 kilometers"
+        );
+    }
+
+    #[test]
+    fn it_parses_duration_values() {
+        assert_eq!(
+            DurationFormatter::parse("70"),
+            Ok(DurationFormatter(4200. * si::S))
+        );
+        assert_eq!(DurationFormatter::parse("15.ab"), Err(ParseError));
+    }
+
+    #[test]
+    fn it_formats_duration_values() {
+        assert_eq!(
+            DurationFormatter::from(4200. * si::S).format(FormatOption::Abbreviated),
+            "1h 10m"
+        );
+        assert_eq!(
+            DurationFormatter::from(4200. * si::S).format(FormatOption::Full),
+            "1 hours 10 minutes"
+        );
+    }
+
+    #[test]
+    fn it_parses_time_values() {
+        assert_eq!(
+            TimeFormatter::parse("13:25"),
+            Ok(TimeFormatter::from(
+                chrono::NaiveTime::from_hms_opt(13, 25, 0).unwrap()
+            )),
+        );
+        assert_eq!(
+            TimeFormatter::parse("13:25:50"),
+            Ok(TimeFormatter::from(
+                chrono::NaiveTime::from_hms_opt(13, 25, 50).unwrap()
+            )),
+        );
+    }
+
+    #[test]
+    fn it_formats_time_values() {
+        let time = TimeFormatter::from(chrono::NaiveTime::from_hms_opt(13, 25, 50).unwrap());
+        assert_eq!(time.format(FormatOption::Abbreviated), "13:25".to_owned());
+        assert_eq!(time.format(FormatOption::Full), "13:25:50".to_owned());
+    }
+}

fitnesstrax/app/src/view_models/day_detail.rs

@@ -0,0 +1,657 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::app::{ReadError, RecordProvider};
+use dimensioned::si;
+use emseries::{Record, RecordId, Recordable};
+use ft_core::{TimeDistance, TimeDistanceActivity, TraxRecord};
+use std::{
+    collections::HashMap,
+    ops::Deref,
+    sync::{Arc, RwLock},
+};
+
+// These are actually a used imports. Clippy isn't detecting their use, probably because of complexity around the async trait macros.
+#[allow(unused_imports)]
+use crate::app::WriteError;
+#[allow(unused_imports)]
+use chrono::NaiveDate;
+
+#[derive(Clone, Debug)]
+enum RecordState<T: Clone + Recordable> {
+    Original(Record<T>),
+    New(Record<T>),
+    Updated(Record<T>),
+    Deleted(Record<T>),
+}
+
+impl<T: Clone + emseries::Recordable> RecordState<T> {
+    fn exists(&self) -> bool {
+        match self {
+            RecordState::Original(_) => true,
+            RecordState::New(_) => true,
+            RecordState::Updated(_) => true,
+            RecordState::Deleted(_) => false,
+        }
+    }
+
+    #[allow(unused)]
+    fn data(&self) -> Option<&Record<T>> {
+        match self {
+            RecordState::Original(ref r) => Some(r),
+            RecordState::New(ref r) => None,
+            RecordState::Updated(ref r) => Some(r),
+            RecordState::Deleted(ref r) => Some(r),
+        }
+    }
+
+    fn set_value(&mut self, value: T) {
+        *self = match self {
+            RecordState::Original(r) => RecordState::Updated(Record { data: value, ..*r }),
+            RecordState::New(r) => RecordState::New(Record { data: value, ..*r }),
+            RecordState::Updated(r) => RecordState::Updated(Record { data: value, ..*r }),
+            RecordState::Deleted(r) => RecordState::Updated(Record { data: value, ..*r }),
+        };
+    }
+
+    fn with_value(mut self, value: T) -> RecordState<T> {
+        self.set_value(value);
+        self
+    }
+
+    #[allow(unused)]
+    fn with_delete(self) -> Option<RecordState<T>> {
+        match self {
+            RecordState::Original(r) => Some(RecordState::Deleted(r)),
+            RecordState::New(r) => None,
+            RecordState::Updated(r) => Some(RecordState::Deleted(r)),
+            RecordState::Deleted(r) => Some(RecordState::Deleted(r)),
+        }
+    }
+}
+
+impl<T: Clone + emseries::Recordable> Deref for RecordState<T> {
+    type Target = T;
+    fn deref(&self) -> &Self::Target {
+        match self {
+            RecordState::Original(ref r) => &r.data,
+            RecordState::New(ref r) => &r.data,
+            RecordState::Updated(ref r) => &r.data,
+            RecordState::Deleted(ref r) => &r.data,
+        }
+    }
+}
+
+impl<T: Clone + emseries::Recordable> std::ops::DerefMut for RecordState<T> {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        match self {
+            RecordState::Original(ref mut r) => &mut r.data,
+            RecordState::New(ref mut r) => &mut r.data,
+            RecordState::Updated(ref mut r) => &mut r.data,
+            RecordState::Deleted(ref mut r) => &mut r.data,
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct DayDetailViewModel {
+    provider: Arc<dyn RecordProvider>,
+    pub date: chrono::NaiveDate,
+    weight: Arc<RwLock<Option<RecordState<ft_core::Weight>>>>,
+    steps: Arc<RwLock<Option<RecordState<ft_core::Steps>>>>,
+    records: Arc<RwLock<HashMap<RecordId, RecordState<TraxRecord>>>>,
+}
+
+impl DayDetailViewModel {
+    pub async fn new(
+        date: chrono::NaiveDate,
+        provider: impl RecordProvider + 'static,
+    ) -> Result<Self, ReadError> {
+        let s = Self {
+            provider: Arc::new(provider),
+            date,
+            weight: Arc::new(RwLock::new(None)),
+            steps: Arc::new(RwLock::new(None)),
+            records: Arc::new(RwLock::new(HashMap::new())),
+        };
+        s.populate_records().await;
+        Ok(s)
+    }
+
+    pub fn weight(&self) -> Option<si::Kilogram<f64>> {
+        (*self.weight.read().unwrap()).as_ref().map(|w| w.weight)
+    }
+
+    pub fn set_weight(&self, new_weight: si::Kilogram<f64>) {
+        let mut record = self.weight.write().unwrap();
+        let new_record = match *record {
+            Some(ref rstate) => rstate.clone().with_value(ft_core::Weight {
+                date: self.date,
+                weight: new_weight,
+            }),
+            None => RecordState::New(Record {
+                id: RecordId::default(),
+                data: ft_core::Weight {
+                    date: self.date,
+                    weight: new_weight,
+                },
+            }),
+        };
+        *record = Some(new_record);
+    }
+
+    pub fn steps(&self) -> Option<u32> {
+        (*self.steps.read().unwrap()).as_ref().map(|w| w.count)
+    }
+
+    pub fn set_steps(&self, new_count: u32) {
+        let mut record = self.steps.write().unwrap();
+        let new_record = match *record {
+            Some(ref rstate) => rstate.clone().with_value(ft_core::Steps {
+                date: self.date,
+                count: new_count,
+            }),
+            None => RecordState::New(Record {
+                id: RecordId::default(),
+                data: ft_core::Steps {
+                    date: self.date,
+                    count: new_count,
+                },
+            }),
+        };
+        *record = Some(new_record);
+    }
+
+    pub fn new_time_distance(&self, activity: TimeDistanceActivity) -> Record<TimeDistance> {
+        let now = chrono::Local::now();
+        let base_time = now.time();
+        let tz = now.timezone();
+        let datetime = self
+            .date
+            .clone()
+            .and_time(base_time)
+            .and_local_timezone(tz)
+            .unwrap()
+            .into();
+
+        let id = RecordId::default();
+        let workout = TimeDistance {
+            datetime,
+            activity,
+            distance: None,
+            duration: None,
+            comments: None,
+        };
+        let tr = TraxRecord::from(workout.clone());
+        self.records
+            .write()
+            .unwrap()
+            .insert(id, RecordState::New(Record { id, data: tr }));
+        Record { id, data: workout }
+    }
+
+    pub fn time_distance_records(&self) -> Vec<Record<TimeDistance>> {
+        self.records
+            .read()
+            .unwrap()
+            .iter()
+            .filter(|(_, record)| record.exists())
+            .filter_map(|(id, record_state)| match **record_state {
+                TraxRecord::TimeDistance(ref workout) => Some(Record {
+                    id: *id,
+                    data: workout.clone(),
+                }),
+                _ => None,
+            })
+            .collect()
+    }
+
+    pub fn time_distance_summary(
+        &self,
+        activity: TimeDistanceActivity,
+    ) -> (si::Meter<f64>, si::Second<f64>) {
+        self.time_distance_records()
+            .into_iter()
+            .filter(|rec| rec.data.activity == activity)
+            .fold(
+                (0. * si::M, 0. * si::S),
+                |(distance, duration), workout| match (workout.data.distance, workout.data.duration)
+                {
+                    (Some(distance_), Some(duration_)) => {
+                        (distance + distance_, duration + duration_)
+                    }
+                    (Some(distance_), None) => (distance + distance_, duration),
+                    (None, Some(duration_)) => (distance, duration + duration_),
+                    (None, None) => (distance, duration),
+                },
+            )
+    }
+
+    pub fn update_record(&self, update: Record<TraxRecord>) {
+        let mut records = self.records.write().unwrap();
+        records
+            .entry(update.id)
+            .and_modify(|record| record.set_value(update.data));
+    }
+
+    pub fn records(&self) -> Vec<Record<TraxRecord>> {
+        let read_lock = self.records.read().unwrap();
+        read_lock
+            .iter()
+            .filter_map(|(_, record_state)| record_state.data())
+            .cloned()
+            .collect::<Vec<Record<TraxRecord>>>()
+    }
+
+    #[allow(unused)]
+    fn get_record(&self, id: &RecordId) -> Option<Record<TraxRecord>> {
+        let record_set = self.records.read().unwrap();
+        record_set.get(id).map(|record| Record {
+            id: *id,
+            data: (**record).clone(),
+        })
+    }
+
+    pub fn remove_record(&self, id: RecordId) {
+        let mut record_set = self.records.write().unwrap();
+        let updated_record = match record_set.remove(&id) {
+            Some(RecordState::Original(r)) => Some(RecordState::Deleted(r)),
+            Some(RecordState::New(_)) => None,
+            Some(RecordState::Updated(r)) => Some(RecordState::Deleted(r)),
+            Some(RecordState::Deleted(r)) => Some(RecordState::Deleted(r)),
+            None => None,
+        };
+        if let Some(updated_record) = updated_record {
+            record_set.insert(id, updated_record);
+        }
+    }
+
+    pub fn save(&self) {
+        let s = self.clone();
+
+        glib::spawn_future(async move { s.async_save().await });
+    }
+
+    pub async fn async_save(&self) {
+        let weight_record = self.weight.read().unwrap().clone();
+        match weight_record {
+            Some(RecordState::New(data)) => {
+                let _ = self
+                    .provider
+                    .put_record(TraxRecord::Weight(data.data))
+                    .await;
+            }
+            Some(RecordState::Original(_)) => {}
+            Some(RecordState::Updated(weight)) => {
+                let _ = self
+                    .provider
+                    .update_record(Record {
+                        id: weight.id,
+                        data: TraxRecord::Weight(weight.data),
+                    })
+                    .await;
+            }
+            Some(RecordState::Deleted(_)) => {}
+            None => {}
+        }
+
+        let steps_record = self.steps.read().unwrap().clone();
+        match steps_record {
+            Some(RecordState::New(data)) => {
+                let _ = self.provider.put_record(TraxRecord::Steps(data.data)).await;
+            }
+            Some(RecordState::Original(_)) => {}
+            Some(RecordState::Updated(steps)) => {
+                let _ = self
+                    .provider
+                    .update_record(Record {
+                        id: steps.id,
+                        data: TraxRecord::Steps(steps.data),
+                    })
+                    .await;
+            }
+            Some(RecordState::Deleted(_)) => {}
+            None => {}
+        }
+
+        let records = self
+            .records
+            .write()
+            .unwrap()
+            .drain()
+            .map(|(_, record)| record)
+            .collect::<Vec<RecordState<TraxRecord>>>();
+
+        for record in records {
+            println!("saving record: {:?}", record);
+            match record {
+                RecordState::New(data) => {
+                    let _ = self.provider.put_record(data.data).await;
+                }
+                RecordState::Original(_) => {}
+                RecordState::Updated(r) => {
+                    let _ = self.provider.update_record(r.clone()).await;
+                }
+                RecordState::Deleted(r) => {
+                    let _ = self.provider.delete_record(r.id).await;
+                }
+            }
+        }
+        self.populate_records().await;
+    }
+
+    pub async fn revert(&self) {
+        self.populate_records().await;
+    }
+
+    async fn populate_records(&self) {
+        let records = self.provider.records(self.date, self.date).await.unwrap();
+
+        let (weight_records, records): (Vec<Record<TraxRecord>>, Vec<Record<TraxRecord>>) =
+            records.into_iter().partition(|r| r.data.is_weight());
+        let (step_records, records): (Vec<Record<TraxRecord>>, Vec<Record<TraxRecord>>) =
+            records.into_iter().partition(|r| r.data.is_steps());
+
+        *self.weight.write().unwrap() = weight_records
+            .first()
+            .and_then(|r| match r.data {
+                TraxRecord::Weight(ref w) => Some((r.id, w.clone())),
+                _ => None,
+            })
+            .map(|(id, w)| RecordState::Original(Record { id, data: w }));
+
+        *self.steps.write().unwrap() = step_records
+            .first()
+            .and_then(|r| match r.data {
+                TraxRecord::Steps(ref w) => Some((r.id, w.clone())),
+                _ => None,
+            })
+            .map(|(id, w)| RecordState::Original(Record { id, data: w }));
+
+        *self.records.write().unwrap() = records
+            .into_iter()
+            .map(|r| (r.id, RecordState::Original(r)))
+            .collect::<HashMap<RecordId, RecordState<TraxRecord>>>();
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use async_trait::async_trait;
+    use chrono::{DateTime, FixedOffset};
+    use dimensioned::si;
+    use emseries::Record;
+
+    #[derive(Clone, Debug)]
+    struct MockProvider {
+        records: Arc<RwLock<HashMap<RecordId, Record<TraxRecord>>>>,
+
+        put_records: Arc<RwLock<Vec<Record<TraxRecord>>>>,
+        updated_records: Arc<RwLock<Vec<Record<TraxRecord>>>>,
+        deleted_records: Arc<RwLock<Vec<RecordId>>>,
+    }
+
+    impl MockProvider {
+        fn new(records: Vec<Record<TraxRecord>>) -> Self {
+            let record_map = records
+                .into_iter()
+                .map(|r| (r.id, r))
+                .collect::<HashMap<RecordId, Record<TraxRecord>>>();
+            Self {
+                records: Arc::new(RwLock::new(record_map)),
+                put_records: Arc::new(RwLock::new(vec![])),
+                updated_records: Arc::new(RwLock::new(vec![])),
+                deleted_records: Arc::new(RwLock::new(vec![])),
+            }
+        }
+    }
+
+    #[async_trait]
+    impl RecordProvider for MockProvider {
+        async fn records(
+            &self,
+            start: NaiveDate,
+            end: NaiveDate,
+        ) -> Result<Vec<Record<TraxRecord>>, ReadError> {
+            let start = emseries::Timestamp::Date(start);
+            let end = emseries::Timestamp::Date(end);
+            Ok(self
+                .records
+                .read()
+                .unwrap()
+                .iter()
+                .map(|(_, r)| r)
+                .filter(|r| r.timestamp() >= start && r.timestamp() <= end)
+                .cloned()
+                .collect::<Vec<Record<TraxRecord>>>())
+        }
+
+        async fn put_record(&self, record: TraxRecord) -> Result<RecordId, WriteError> {
+            let id = RecordId::default();
+            let record = Record {
+                id: id,
+                data: record,
+            };
+            self.put_records.write().unwrap().push(record.clone());
+            self.records.write().unwrap().insert(id, record);
+            Ok(id)
+        }
+
+        async fn update_record(&self, record: Record<TraxRecord>) -> Result<(), WriteError> {
+            println!("updated record: {:?}", record);
+            self.updated_records.write().unwrap().push(record.clone());
+            self.records.write().unwrap().insert(record.id, record);
+            Ok(())
+        }
+
+        async fn delete_record(&self, id: RecordId) -> Result<(), WriteError> {
+            self.deleted_records.write().unwrap().push(id);
+            let _ = self.records.write().unwrap().remove(&id);
+            Ok(())
+        }
+    }
+
+    async fn create_empty_view_model() -> (DayDetailViewModel, MockProvider) {
+        let provider = MockProvider::new(vec![]);
+
+        let oct_13 = chrono::NaiveDate::from_ymd_opt(2023, 10, 13).unwrap();
+        let model = DayDetailViewModel::new(oct_13, provider.clone())
+            .await
+            .unwrap();
+        (model, provider)
+    }
+
+    async fn create_view_model() -> (DayDetailViewModel, MockProvider) {
+        let oct_12 = chrono::NaiveDate::from_ymd_opt(2023, 10, 12).unwrap();
+        let oct_13 = chrono::NaiveDate::from_ymd_opt(2023, 10, 13).unwrap();
+        let oct_13_am: DateTime<FixedOffset> = oct_13
+            .clone()
+            .and_hms_opt(3, 28, 0)
+            .unwrap()
+            .and_utc()
+            .with_timezone(&FixedOffset::east_opt(5 * 3600).unwrap());
+        let provider = MockProvider::new(vec![
+            Record {
+                id: RecordId::default(),
+                data: TraxRecord::Weight(ft_core::Weight {
+                    date: oct_12,
+                    weight: 93. * si::KG,
+                }),
+            },
+            Record {
+                id: RecordId::default(),
+                data: TraxRecord::Weight(ft_core::Weight {
+                    date: oct_13,
+                    weight: 95. * si::KG,
+                }),
+            },
+            Record {
+                id: RecordId::default(),
+                data: TraxRecord::Steps(ft_core::Steps {
+                    date: oct_13,
+                    count: 2500,
+                }),
+            },
+            Record {
+                id: RecordId::default(),
+                data: TraxRecord::TimeDistance(ft_core::TimeDistance {
+                    datetime: oct_13_am.clone(),
+                    activity: TimeDistanceActivity::Biking,
+                    distance: Some(15000. * si::M),
+                    duration: Some(3600. * si::S),
+                    comments: Some("somecomments present".to_owned()),
+                }),
+            },
+        ]);
+        let model = DayDetailViewModel::new(oct_13, provider.clone())
+            .await
+            .unwrap();
+        (model, provider)
+    }
+
+    #[tokio::test]
+    async fn it_honors_only_the_first_weight_and_step_record() {
+        let (view_model, _provider) = create_view_model().await;
+        assert_eq!(view_model.weight(), Some(95. * si::KG));
+        assert_eq!(view_model.steps(), Some(2500));
+    }
+
+    #[tokio::test]
+    async fn it_can_create_a_weight_and_stepcount() {
+        let (view_model, provider) = create_empty_view_model().await;
+        assert_eq!(view_model.weight(), None);
+        assert_eq!(view_model.steps(), None);
+
+        view_model.set_weight(95. * si::KG);
+        view_model.set_steps(250);
+
+        assert_eq!(view_model.weight(), Some(95. * si::KG));
+        assert_eq!(view_model.steps(), Some(250));
+
+        view_model.set_weight(93. * si::KG);
+        view_model.set_steps(255);
+
+        assert_eq!(view_model.weight(), Some(93. * si::KG));
+        assert_eq!(view_model.steps(), Some(255));
+
+        view_model.async_save().await;
+
+        println!("provider: {:?}", provider);
+        assert_eq!(provider.put_records.read().unwrap().len(), 2);
+        assert_eq!(provider.updated_records.read().unwrap().len(), 0);
+        assert_eq!(provider.deleted_records.read().unwrap().len(), 0);
+    }
+
+    #[tokio::test]
+    async fn it_can_construct_new_records() {
+        let (view_model, provider) = create_empty_view_model().await;
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Biking),
+            (0. * si::M, 0. * si::S)
+        );
+
+        let mut record = view_model.new_time_distance(TimeDistanceActivity::Biking);
+        record.data.duration = Some(60. * si::S);
+        view_model.async_save().await;
+
+        assert_eq!(provider.put_records.read().unwrap().len(), 1);
+        assert_eq!(provider.updated_records.read().unwrap().len(), 0);
+        assert_eq!(provider.deleted_records.read().unwrap().len(), 0);
+    }
+
+    #[tokio::test]
+    async fn it_can_update_a_new_record_before_saving() {
+        let (view_model, provider) = create_empty_view_model().await;
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Biking),
+            (0. * si::M, 0. * si::S)
+        );
+
+        let mut record = view_model.new_time_distance(TimeDistanceActivity::Biking);
+        record.data.duration = Some(60. * si::S);
+        let record = record.map(TraxRecord::TimeDistance);
+        view_model.update_record(record.clone());
+        assert_eq!(view_model.get_record(&record.id), Some(record));
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Biking),
+            (0. * si::M, 60. * si::S)
+        );
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Running),
+            (0. * si::M, 0. * si::S)
+        );
+        view_model.async_save().await;
+
+        assert_eq!(provider.put_records.read().unwrap().len(), 1);
+        assert_eq!(provider.updated_records.read().unwrap().len(), 0);
+        assert_eq!(provider.deleted_records.read().unwrap().len(), 0);
+    }
+
+    #[tokio::test]
+    async fn it_can_update_an_existing_record() {
+        let (view_model, provider) = create_view_model().await;
+        let mut workout = view_model.time_distance_records().first().cloned().unwrap();
+
+        workout.data.duration = Some(1800. * si::S);
+        view_model.update_record(workout.map(TraxRecord::TimeDistance));
+
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Biking),
+            (15000. * si::M, 1800. * si::S)
+        );
+
+        view_model.async_save().await;
+
+        assert_eq!(provider.put_records.read().unwrap().len(), 0);
+        assert_eq!(provider.updated_records.read().unwrap().len(), 1);
+        assert_eq!(provider.deleted_records.read().unwrap().len(), 0);
+    }
+
+    #[tokio::test]
+    async fn it_can_remove_a_new_record() {
+        let (view_model, provider) = create_empty_view_model().await;
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Biking),
+            (0. * si::M, 0. * si::S)
+        );
+
+        let record = view_model.new_time_distance(TimeDistanceActivity::Biking);
+        view_model.remove_record(record.id);
+        view_model.save();
+
+        assert_eq!(provider.put_records.read().unwrap().len(), 0);
+        assert_eq!(provider.updated_records.read().unwrap().len(), 0);
+        assert_eq!(provider.deleted_records.read().unwrap().len(), 0);
+    }
+
+    #[tokio::test]
+    async fn it_can_delete_an_existing_record() {
+        let (view_model, provider) = create_view_model().await;
+        let workout = view_model.time_distance_records().first().cloned().unwrap();
+
+        view_model.remove_record(workout.id);
+        assert_eq!(
+            view_model.time_distance_summary(TimeDistanceActivity::Biking),
+            (0. * si::M, 0. * si::S)
+        );
+        view_model.async_save().await;
+
+        assert_eq!(provider.put_records.read().unwrap().len(), 0);
+        assert_eq!(provider.updated_records.read().unwrap().len(), 0);
+        assert_eq!(provider.deleted_records.read().unwrap().len(), 1);
+    }
+}

fitnesstrax/app/src/view_models/mod.rs

@@ -0,0 +1,18 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+mod day_detail;
+pub use day_detail::DayDetailViewModel;

fitnesstrax/app/src/views/day_detail_view.rs

@@ -0,0 +1,84 @@
+/*
+Copyright 2024, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{
+    components::{DayDetail, DayEdit, Singleton, SingletonImpl},
+    view_models::DayDetailViewModel,
+};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::cell::RefCell;
+
+#[derive(Default)]
+pub struct DayDetailViewPrivate {
+    container: Singleton,
+    view_model: RefCell<Option<DayDetailViewModel>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DayDetailViewPrivate {
+    const NAME: &'static str = "DayDetailView";
+    type Type = DayDetailView;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for DayDetailViewPrivate {}
+impl WidgetImpl for DayDetailViewPrivate {}
+impl BoxImpl for DayDetailViewPrivate {}
+impl SingletonImpl for DayDetailViewPrivate {}
+
+glib::wrapper! {
+    pub struct DayDetailView(ObjectSubclass<DayDetailViewPrivate>) @extends gtk::Box, gtk::Widget;
+}
+
+impl DayDetailView {
+    pub fn new(view_model: DayDetailViewModel) -> Self {
+        let s: Self = Object::builder().build();
+        *s.imp().view_model.borrow_mut() = Some(view_model);
+
+        s.append(&s.imp().container);
+
+        s.view();
+
+        s
+    }
+
+    fn view(&self) {
+        let view_model = self.imp().view_model.borrow();
+        let view_model = view_model
+            .as_ref()
+            .expect("DayDetailView has not been initialized with a view_model")
+            .clone();
+
+        self.imp().container.swap(&DayDetail::new(view_model, {
+            let s = self.clone();
+            move || s.edit()
+        }));
+    }
+
+    fn edit(&self) {
+        let view_model = self.imp().view_model.borrow();
+        let view_model = view_model
+            .as_ref()
+            .expect("DayDetailView has not been initialized with a view_model")
+            .clone();
+
+        self.imp().container.swap(&DayEdit::new(view_model, {
+            let s = self.clone();
+            move || s.view()
+        }));
+    }
+}

fitnesstrax/app/src/views/historical_view.rs

@@ -0,0 +1,182 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{
+    app::App,
+    components::{DateRangePicker, DaySummary},
+    types::DayInterval,
+    view_models::DayDetailViewModel,
+};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, rc::Rc};
+
+/// The historical view will show a window into the main database. It will show some version of
+/// daily summaries, daily details, and will provide all functions the user may need for editing
+/// records.
+pub struct HistoricalViewPrivate {
+    app: Rc<RefCell<Option<App>>>,
+    list_view: gtk::ListView,
+    date_range_picker: DateRangePicker,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for HistoricalViewPrivate {
+    const NAME: &'static str = "HistoricalView";
+    type Type = HistoricalView;
+    type ParentType = gtk::Box;
+
+    fn new() -> Self {
+        let factory = gtk::SignalListItemFactory::new();
+        factory.connect_setup(move |_, list_item| {
+            list_item
+                .downcast_ref::<gtk::ListItem>()
+                .expect("should be a ListItem")
+                .set_child(Some(&DaySummary::new()));
+        });
+
+        let date_range_picker = DateRangePicker::default();
+
+        let s = Self {
+            app: Rc::new(RefCell::new(None)),
+            list_view: gtk::ListView::builder()
+                .factory(&factory)
+                .single_click_activate(true)
+                .show_separators(true)
+                .build(),
+            date_range_picker,
+        };
+
+        factory.connect_bind({
+            let app = s.app.clone();
+            move |_, list_item| {
+                let date = list_item
+                    .downcast_ref::<gtk::ListItem>()
+                    .expect("should be a ListItem")
+                    .item()
+                    .and_downcast::<Date>()
+                    .expect("should be a Date");
+
+                let summary = list_item
+                    .downcast_ref::<gtk::ListItem>()
+                    .expect("should be a ListItem")
+                    .child()
+                    .and_downcast::<DaySummary>()
+                    .expect("should be a DaySummary");
+
+                if let Some(app) = app.borrow().clone() {
+                    glib::spawn_future_local(async move {
+                        let view_model = DayDetailViewModel::new(date.date(), app.clone())
+                            .await
+                            .unwrap();
+                        summary.set_data(view_model);
+                    });
+                }
+            }
+        });
+
+        s
+    }
+}
+
+impl ObjectImpl for HistoricalViewPrivate {}
+impl WidgetImpl for HistoricalViewPrivate {}
+impl BoxImpl for HistoricalViewPrivate {}
+
+glib::wrapper! {
+    pub struct HistoricalView(ObjectSubclass<HistoricalViewPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl HistoricalView {
+    pub fn new<SelectFn>(app: App, interval: DayInterval, on_select_day: Rc<SelectFn>) -> Self
+    where
+        SelectFn: Fn(chrono::NaiveDate) + 'static,
+    {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.set_css_classes(&["historical"]);
+
+        *s.imp().app.borrow_mut() = Some(app);
+
+        s.imp().date_range_picker.connect_on_search({
+            let s = s.clone();
+            move |interval| s.set_interval(interval)
+        });
+        s.set_interval(interval);
+
+        s.imp().list_view.connect_activate({
+            let on_select_day = on_select_day.clone();
+            move |s, idx| {
+                // This gets triggered whenever the user clicks on an item on the list.
+                let item = s.model().unwrap().item(idx).unwrap();
+                let date = item.downcast_ref::<Date>().unwrap();
+                on_select_day(date.date());
+            }
+        });
+
+        let scroller = gtk::ScrolledWindow::builder()
+            .child(&s.imp().list_view)
+            .hexpand(true)
+            .vexpand(true)
+            .hscrollbar_policy(gtk::PolicyType::Never)
+            .build();
+
+        s.append(&s.imp().date_range_picker);
+        s.append(&scroller);
+
+        s
+    }
+
+    pub fn set_interval(&self, interval: DayInterval) {
+        let mut model = gio::ListStore::new::<Date>();
+        let mut days = interval.days().map(Date::new).collect::<Vec<Date>>();
+        days.reverse();
+        model.extend(days.into_iter());
+        self.imp()
+            .list_view
+            .set_model(Some(&gtk::NoSelection::new(Some(model))));
+        self.imp().date_range_picker.set_interval(interval.start, interval.end);
+    }
+}
+
+#[derive(Default)]
+pub struct DatePrivate {
+    date: RefCell<chrono::NaiveDate>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DatePrivate {
+    const NAME: &'static str = "Date";
+    type Type = Date;
+}
+
+impl ObjectImpl for DatePrivate {}
+
+glib::wrapper! {
+    pub struct Date(ObjectSubclass<DatePrivate>);
+}
+
+impl Date {
+    pub fn new(date: chrono::NaiveDate) -> Self {
+        let s: Self = Object::builder().build();
+        *s.imp().date.borrow_mut() = date;
+        s
+    }
+
+    pub fn date(&self) -> chrono::NaiveDate {
+        *self.imp().date.borrow()
+    }
+}

fitnesstrax/app/src/views/mod.rs

@@ -0,0 +1,45 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use gtk::prelude::*;
+
+mod day_detail_view;
+pub use day_detail_view::DayDetailView;
+
+mod historical_view;
+pub use historical_view::HistoricalView;
+
+mod placeholder_view;
+pub use placeholder_view::PlaceholderView;
+
+mod welcome_view;
+pub use welcome_view::WelcomeView;
+
+pub enum View {
+    Placeholder(PlaceholderView),
+    Welcome(WelcomeView),
+    Historical(HistoricalView),
+}
+
+impl View {
+    pub fn widget(&self) -> gtk::Widget {
+        match self {
+            View::Placeholder(widget) => widget.clone().upcast::<gtk::Widget>(),
+            View::Welcome(widget) => widget.clone().upcast::<gtk::Widget>(),
+            View::Historical(widget) => widget.clone().upcast::<gtk::Widget>(),
+        }
+    }
+}