Add a test for update notifications

There's a lot of work here that sets up dependency injection traits
which will make it easier for me to keep writing tests and will make it
easier for me to separate the Core from the support infrastructure.

.gitignore

@@ -2,3 +2,10 @@ target
 .direnv/
 node_modules
 dist
+result
+*.tgz
+*.tar.gz
+*.sqlite
+*.sqlite-shm
+*.sqlite-wal
+file-service/var

.vscode/settings.json

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

Cargo.toml

@@ -1,6 +1,37 @@
 [workspace]
+resolver = "2"
 members = [
-    "kifu/kifu-core",
+    "authdb",
-    "kifu/kifu-gtk"
+    # "bike-lights/bike",
+    "bike-lights/core",
+    "bike-lights/simulator",
+    "changeset",
+    "config",
+    "config-derive",
+    "coordinates",
+    "cyberpunk",
+    "cyber-slides",
+    "cyberpunk-splash",
+    "dashboard",
+    "emseries",
+    "file-service",
+    "fitnesstrax/core",
+    "fitnesstrax/app",
+    "fluent-ergonomics",
+    "geo-types",
+    "gm-control-panel",
+    "hex-grid",
+    "icon-test",
+    "ifc",
+    "memorycache",
+    "nom-training",
+    "otg/core",
+    "otg/gtk",
+    "result-extended",
+    "screenplay",
+    "sgf",
+    "timezone-testing",
+    "tree",
+    "visions/server",
+    "gm-dash/server"
 ]
-

Makefile

@@ -1,37 +0,0 @@
-
-changeset-dev:
-	cd changeset && make dev
-
-changeset-test:
-	cd changeset && make test
-
-coordinates-dev:
-	cd coordinates && make dev
-
-coordinates-test:
-	cd coordinates && make test
-
-emseries-dev:
-	cd emseries && make dev
-
-emseries-test:
-	cd emseries && make test
-
-flow-dev:
-	cd flow && make dev
-
-flow-test:
-	cd flow && make test
-
-fluent-ergonomics-dev:
-	cd fluent-ergonomics && make dev
-
-fluent-ergonomics-test:
-	cd fluent-ergonomics && make test
-
-ifc-dev:
-	cd ifc && make dev
-
-ifc-test:
-	cd ifc && make test
-

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/migrations/20231003154201_initial_auth_db.sql

@@ -0,0 +1,11 @@
+CREATE TABLE IF NOT EXISTS users (
+    id          INTEGER PRIMARY KEY NOT NULL,
+    username    TEXT NOT NULL,
+    token       TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS sessions (
+    token       TEXT NOT NULL,
+    user_id     INTEGER,
+    FOREIGN KEY(user_id) REFERENCES users(id)
+);

authdb/src/bin/cli.rs

@@ -0,0 +1,40 @@
+use authdb::{AuthDB, Username};
+use clap::{Parser, Subcommand};
+use std::path::PathBuf;
+
+#[derive(Subcommand, Debug)]
+enum Commands {
+    AddUser { username: String },
+    DeleteUser { username: String },
+    ListUsers,
+}
+
+#[derive(Parser, Debug)]
+struct Args {
+    #[command(subcommand)]
+    command: Commands,
+}
+
+#[tokio::main]
+pub async fn main() {
+    let args = Args::parse();
+    let authdb = AuthDB::new(PathBuf::from(&std::env::var("AUTHDB").unwrap()))
+        .await
+        .expect("to be able to open the database");
+
+    match args.command {
+        Commands::AddUser { username } => {
+            match authdb.add_user(Username::from(username.clone())).await {
+                Ok(token) => {
+                    println!("User {} created. Auth token: {}", username, *token);
+                }
+                Err(err) => {
+                    println!("Could not create user {}", username);
+                    println!("\tError: {:?}", err);
+                }
+            }
+        }
+        Commands::DeleteUser { .. } => {}
+        Commands::ListUsers => {}
+    }
+}

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);
+}

changeset/Cargo.toml

@@ -3,7 +3,6 @@ name = "changeset"
 version = "0.1.0"
 edition = "2021"
 license = "GPL-3.0-only"
-license-file = "../COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

changeset/Makefile

@@ -1,9 +0,0 @@
-
-dev:
-	cargo watch -x build
-
-test:
-	cargo watch -x test
-
-test-once:
-	cargo test

changeset/src/lib.rs

@@ -26,7 +26,7 @@ pub enum Change<Key: Eq + Hash, Value> {
     NewRecord(Value),
 }
 
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Default)]
 pub struct Changeset<Key: Clone + Eq + Hash, Value> {
     delete: HashSet<Key>,
     update: HashMap<Key, Value>,
@@ -34,14 +34,6 @@ pub struct Changeset<Key: Clone + Eq + Hash, Value> {
 }
 
 impl<Key: Clone + Constructable + Eq + Hash, Value> Changeset<Key, Value> {
-    pub fn new() -> Self {
-        Self {
-            delete: HashSet::new(),
-            update: HashMap::new(),
-            new: HashMap::new(),
-        }
-    }
-
     pub fn add(&mut self, r: Value) -> Key {
         let k = Key::new();
         self.new.insert(k.clone(), r);
@@ -90,7 +82,7 @@ impl<Key: Clone + Eq + Hash, Value> From<Changeset<Key, Value>> for Vec<Change<K
                     .into_iter()
                     .map(|(k, v)| Change::UpdateRecord((k, v))),
             )
-            .chain(new.into_iter().map(|(_, v)| Change::NewRecord(v)))
+            .chain(new.into_values().map(|v| Change::NewRecord(v)))
             .collect()
     }
 }
@@ -100,7 +92,7 @@ mod tests {
     use super::*;
     use uuid::Uuid;
 
-    #[derive(Clone, PartialEq, Eq, Hash)]
+    #[derive(Clone, PartialEq, Eq, Hash, Default)]
     struct Id(Uuid);
     impl Constructable for Id {
         fn new() -> Self {
@@ -110,7 +102,7 @@ mod tests {
 
     #[test]
     fn it_generates_a_new_record() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         set.add("efgh".to_string());
         let changes = Vec::from(set.clone());
         assert_eq!(changes.len(), 1);
@@ -125,7 +117,7 @@ mod tests {
 
     #[test]
     fn it_generates_a_delete_record() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         let id1 = Id::new();
         set.delete(id1.clone());
         let changes = Vec::from(set.clone());
@@ -142,7 +134,7 @@ mod tests {
 
     #[test]
     fn update_unrelated_records() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         let id1 = Id::new();
         let id2 = Id::new();
         set.update(id1.clone(), "abcd".to_owned());
@@ -155,7 +147,7 @@ mod tests {
 
     #[test]
     fn delete_cancels_new() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         let key = set.add("efgh".to_string());
         set.delete(key);
         let changes = Vec::from(set);
@@ -164,7 +156,7 @@ mod tests {
 
     #[test]
     fn delete_cancels_update() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         let id = Id::new();
         set.update(id.clone(), "efgh".to_owned());
         set.delete(id.clone());
@@ -175,7 +167,7 @@ mod tests {
 
     #[test]
     fn update_atop_new_is_new() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         let key = set.add("efgh".to_owned());
         set.update(key, "wxyz".to_owned());
         let changes = Vec::from(set);
@@ -185,7 +177,7 @@ mod tests {
 
     #[test]
     fn updates_get_squashed() {
-        let mut set: Changeset<Id, String> = Changeset::new();
+        let mut set: Changeset<Id, String> = Changeset::default();
         let id1 = Id::new();
         let id2 = Id::new();
         set.update(id1.clone(), "efgh".to_owned());

config-derive/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "config-derive"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+proc-macro = true
+
+[dependencies]
+quote           = { version = "1" }
+syn             = { version = "1", features = [ "extra-traits" ] }
+

config-derive/src/lib.rs

@@ -0,0 +1,23 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(ConfigOption)]
+pub fn derive(input: TokenStream) -> TokenStream {
+    let DeriveInput { ident, .. } = parse_macro_input!(input as DeriveInput);
+
+    let result = quote! {
+        impl From<&Config> for Option<#ident> {
+            fn from(config: &Config) -> Self {
+                match config.values.get(&ConfigName::#ident) {
+                    Some(ConfigOption::#ident(val)) => Some(val.clone()),
+                    _ => None,
+                }
+            }
+        }
+    };
+    result.into()
+}

config/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "config"
+version = "0.1.0"
+edition = "2021"
+
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+config-derive   = { path = "../config-derive" }
+serde_json      = { version = "1" }
+serde           = { version = "1", features = [ "derive" ] }
+thiserror       = { version = "1" }
+
+[dev-dependencies]
+cool_asserts    = { version = "2" }

config/src/lib.rs

@@ -0,0 +1,160 @@
+/*
+use std::{
+    collections::HashMap,
+    fs::File,
+    hash::Hash,
+    io::{ErrorKind, Read},
+    path::PathBuf,
+};
+*/
+
+pub use config_derive::ConfigOption;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum ConfigReadError {
+    #[error("Cannot read the configuration file: {0}")]
+    CannotRead(std::io::Error),
+    #[error("Cannot open the configuration file for reading: {0}")]
+    CannotOpen(std::io::Error),
+    #[error("Invalid json data found in the configurationfile: {0}")]
+    InvalidJSON(serde_json::Error),
+}
+
+#[macro_export]
+macro_rules! define_config {
+    ($($name:ident($struct:ident),)+) => (
+        #[derive(Clone, Debug, Hash, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
+        pub enum ConfigName {
+            $($name),+
+        }
+
+        #[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
+        #[serde(untagged)]
+        pub enum ConfigOption {
+            $($name($struct)),+
+        }
+
+        #[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
+        pub struct Config {
+            values: std::collections::HashMap<ConfigName, ConfigOption>,
+        }
+
+        impl Config {
+            pub fn new() -> Self {
+                Self {
+                    values: std::collections::HashMap::new(),
+                }
+            }
+
+            pub fn from_path(config_path: std::path::PathBuf) -> Result<Self, $crate::ConfigReadError> {
+                let mut settings = config_path.clone();
+                settings.push("config");
+
+                match std::fs::File::open(settings) {
+                    Ok(mut file) => {
+                        let mut buf = String::new();
+                        std::io::Read::read_to_string(&mut file, &mut buf)
+                            .map_err(|err| $crate::ConfigReadError::CannotRead(err))?;
+                        let values = serde_json::from_str(buf.as_ref())
+                            .map_err(|err| $crate::ConfigReadError::InvalidJSON(err))?;
+                        Ok(Self {
+                            values,
+                        })
+                    }
+                    Err(io_err) => {
+                        match io_err.kind() {
+                            std::io::ErrorKind::NotFound => {
+                                /* create the path and an empty file */
+                                Ok(Self {
+                                    values: std::collections::HashMap::new(),
+                                })
+                            }
+                            _ => Err($crate::ConfigReadError::CannotOpen(io_err)),
+                        }
+                    }
+                }
+            }
+
+            pub fn set(&mut self, val: ConfigOption) {
+                let _ = match val {
+                    $(ConfigOption::$struct(_) => self.values.insert(ConfigName::$name, val)),+
+                };
+            }
+
+            pub fn get<'a, T>(&'a self) -> Option<T>
+            where
+                Option<T>: From<&'a Self>,
+            {
+                self.into()
+            }
+        }
+    )
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use cool_asserts::assert_matches;
+    use serde::{Deserialize, Serialize};
+    use std::collections::HashMap;
+    use std::path::PathBuf;
+
+    define_config! {
+        DatabasePath(DatabasePath),
+        Me(Me),
+    }
+
+    #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, ConfigOption)]
+    pub struct DatabasePath(PathBuf);
+
+    #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+    enum Rank {
+        Kyu(i8),
+        Dan(i8),
+    }
+
+    #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, ConfigOption)]
+    pub struct Me {
+        name: String,
+        rank: Option<Rank>,
+    }
+
+    #[test]
+    fn it_can_set_and_get_options() {
+        let mut config: Config = Config::new();
+        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
+            "./fixtures/five_games",
+        ))));
+
+        assert_eq!(
+            Some(DatabasePath(PathBuf::from("./fixtures/five_games"))),
+            config.get()
+        );
+    }
+
+    #[test]
+    fn it_can_serialize_and_deserialize() {
+        let mut config = Config::new();
+        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
+            "fixtures/five_games",
+        ))));
+        config.set(ConfigOption::Me(Me {
+            name: "Savanni".to_owned(),
+            rank: Some(Rank::Kyu(10)),
+        }));
+        let s = serde_json::to_string(&config.values).unwrap();
+        println!("{}", s);
+        let values: HashMap<ConfigName, ConfigOption> = serde_json::from_str(s.as_ref()).unwrap();
+        println!("options: {:?}", values);
+
+        assert_matches!(values.get(&ConfigName::DatabasePath),
+                        Some(ConfigOption::DatabasePath(ref db_path)) =>
+                        assert_eq!(Some(db_path.clone()), config.get())
+        );
+
+        assert_matches!(values.get(&ConfigName::Me), Some(ConfigOption::Me(val)) =>
+            assert_eq!(Some(val.clone()), config.get())
+        );
+    }
+}

coordinates/Cargo.toml

@@ -3,7 +3,6 @@ name = "coordinates"
 version = "0.1.0"
 edition = "2021"
 license = "GPL-3.0-only"
-license-file = "../COPYING"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

coordinates/Makefile

@@ -1,9 +0,0 @@
-
-dev:
-	cargo watch -x build
-
-test:
-	cargo watch -x test
-
-test-once:
-	cargo test

coordinates/src/bin/default_map.rs

@@ -33,12 +33,12 @@ fn main() {
 
     let filename = args
         .next()
-        .map(|p| PathBuf::from(p))
+        .map(PathBuf::from)
         .expect("A filename is required");
     let size = args
         .next()
         .and_then(|s| s.parse::<usize>().ok())
         .unwrap_or(3);
     let map: hex_map::Map<MapVal> = hex_map::Map::new_hexagonal(size);
-    hex_map::write_file(filename, map);
+    hex_map::write_file(filename, map).expect("to write file");
 }

coordinates/src/hex.rs

@@ -10,10 +10,9 @@ 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/>.
 */
 
-/// Ĉi-tiu modulo enhavas la elementojn por kub-koordinato.
+/// This module contains the elements of cube coordinates.
 ///
 /// This code is based on https://www.redblobgames.com/grids/hexagons/
-use crate::Error;
 use std::collections::HashSet;
 
 /// An address within the hex coordinate system
@@ -62,7 +61,7 @@ impl AxialAddr {
     pub fn is_adjacent(&self, dest: &AxialAddr) -> bool {
         dest.adjacencies()
             .collect::<Vec<AxialAddr>>()
-            .contains(&self)
+            .contains(self)
     }
 
     /// Measure the distance to a destination
@@ -79,7 +78,7 @@ impl AxialAddr {
 
         positions.push(item);
 
-        while positions.len() > 0 {
+        while !positions.is_empty() {
             let elem = positions.remove(0);
             for adj in elem.adjacencies() {
                 if self.distance(&adj) <= distance && !results.contains(&adj) {

coordinates/src/hex_map.rs

@@ -14,7 +14,6 @@ use crate::{hex::AxialAddr, Error};
 use nom::{
     bytes::complete::tag,
     character::complete::alphanumeric1,
-    error::ParseError,
     multi::many1,
     sequence::{delimited, separated_pair},
     Finish, IResult, Parser,
@@ -81,7 +80,7 @@ pub fn parse_data<'a, A: Default + From<String>>(
     }
 
     let cells = data
-        .map(|line| parse_line::<A>(&line).unwrap())
+        .map(|line| parse_line::<A>(line).unwrap())
         .collect::<Vec<(AxialAddr, A)>>();
     let cells = cells.into_iter().collect::<HashMap<AxialAddr, A>>();
     Map { cells }

coordinates/src/lib.rs

@@ -9,9 +9,9 @@ Lumeto is distributed in the hope that it will be useful, but WITHOUT ANY WARRAN
 
 You should have received a copy of the GNU General Public License along with Lumeto. If not, see <https://www.gnu.org/licenses/>.
 */
-use thiserror;
+use thiserror::Error;
 
-#[derive(Debug, thiserror::Error)]
+#[derive(Debug, Error)]
 pub enum Error {
     #[error("IO error on reading or writing: {0}")]
     IO(std::io::Error),

crate-hashes.json

@@ -0,0 +1,491 @@
+{
+  "registry+https://github.com/rust-lang/crates.io-index#addr2line@0.24.2": "1hd1i57zxgz08j6h5qrhsnm2fi0bcqvsh389fw400xm3arz2ggnz",
+  "registry+https://github.com/rust-lang/crates.io-index#adler2@2.0.0": "09r6drylvgy8vv8k20lnbvwq8gp09h7smfn6h1rxsy15pgh629si",
+  "registry+https://github.com/rust-lang/crates.io-index#adler32@1.2.0": "0d7jq7jsjyhsgbhnfq5fvrlh9j0i9g1fqrl2735ibv5f75yjgqda",
+  "registry+https://github.com/rust-lang/crates.io-index#adler@1.0.2": "1zim79cvzd5yrkzl3nyfx0avijwgk9fqv3yrscdy1cc79ih02qpj",
+  "registry+https://github.com/rust-lang/crates.io-index#ahash@0.8.11": "04chdfkls5xmhp1d48gnjsmglbqibizs3bpbj6rsj604m10si7g8",
+  "registry+https://github.com/rust-lang/crates.io-index#aho-corasick@1.1.3": "05mrpkvdgp5d20y2p989f187ry9diliijgwrs254fs9s1m1x6q4f",
+  "registry+https://github.com/rust-lang/crates.io-index#allocator-api2@0.2.18": "0kr6lfnxvnj164j1x38g97qjlhb7akppqzvgfs0697140ixbav2w",
+  "registry+https://github.com/rust-lang/crates.io-index#android-tzdata@0.1.1": "1w7ynjxrfs97xg3qlcdns4kgfpwcdv824g611fq32cag4cdr96g9",
+  "registry+https://github.com/rust-lang/crates.io-index#android_system_properties@0.1.5": "04b3wrz12837j7mdczqd95b732gw5q7q66cv4yn4646lvccp57l1",
+  "registry+https://github.com/rust-lang/crates.io-index#annotate-snippets@0.9.2": "07p8r6jzb7nqydq0kr5pllckqcdxlyld2g275v425axnzffpxbyc",
+  "registry+https://github.com/rust-lang/crates.io-index#anstream@0.6.15": "09nm4qj34kiwgzczdvj14x7hgsb235g4sqsay3xsz7zqn4d5rqb4",
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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.lock

@@ -20,12 +20,6 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
-[[package]]
-name = "bytes"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
-
 [[package]]
 name = "cairo-rs"
 version = "0.17.0"
@@ -53,18 +47,22 @@ dependencies = [
 
 [[package]]
 name = "cfg-expr"
-version = "0.11.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0357a6402b295ca3a86bc148e84df46c02e41f41fef186bda662557ef6328aa"
+checksum = "a35b255461940a32985c627ce82900867c61db1659764d3675ea81963f72a4c6"
 dependencies = [
  "smallvec",
 ]
 
 [[package]]
-name = "cfg-if"
+name = "cyberpunk-splash"
-version = "1.0.0"
+version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+ "cairo-rs",
+ "gio",
+ "glib",
+ "gtk4",
+]
 
 [[package]]
 name = "field-offset"
@@ -78,24 +76,24 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "164713a5a0dcc3e7b4b1ed7d3b433cabc18025386f9339346e8daf15963cf7ac"
+checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
 dependencies = [
  "futures-core",
 ]
 
 [[package]]
 name = "futures-core"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86d7a0c1aa76363dac491de0ee99faf6941128376f1cf96f07db7603b7de69dd"
+checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1997dd9df74cdac935c76252744c1ed5794fac083242ea4fe77ef3ed60ba0f83"
+checksum = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -104,32 +102,32 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89d422fa3cbe3b40dca574ab087abb5bc98258ea57eea3fd6f1fa7162c778b91"
+checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3eb14ed937631bd8b8b8977f2c198443447a8355b6e3ca599f38c975e5a963b6"
+checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.13",
 ]
 
 [[package]]
 name = "futures-task"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd65540d33b37b16542a0438c12e6aeead10d4ac5d05bd3f805b8f35ab592879"
+checksum = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65"
 
 [[package]]
 name = "futures-util"
-version = "0.3.27"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ef6b17e481503ec85211fed8f39d1970f128935ca1f814cd32ac4a6842e84ab"
+checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"
 dependencies = [
  "futures-core",
  "futures-macro",
@@ -257,9 +255,9 @@ dependencies = [
 
 [[package]]
 name = "glib-macros"
-version = "0.17.5"
+version = "0.17.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "454924cafe58d9174dc32972261fe271d6cd3c10f5e9ff505522a28dcf601a40"
+checksum = "bc4cf346122086f196260783aa58987190dbd5f43bfab01946d2bf9786e8d9ef"
 dependencies = [
  "anyhow",
  "heck",
@@ -371,9 +369,9 @@ dependencies = [
 
 [[package]]
 name = "gtk4-macros"
-version = "0.6.3"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30e21acdeb9a02b8cba83e65afbb8aa45f977785e50f1113407024c6b6256988"
+checksum = "f041a797fb098bfb06e432c61738133604bfa3af57f13f1da3b9d46271422ef0"
 dependencies = [
  "anyhow",
  "proc-macro-crate",
@@ -414,68 +412,21 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
-[[package]]
-name = "hermit-abi"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "indexmap"
-version = "1.9.2"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
+checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
  "hashbrown",
 ]
 
-[[package]]
-name = "kifu-core"
-version = "0.1.0"
-dependencies = [
- "tokio",
-]
-
-[[package]]
-name = "kifu-gtk"
-version = "0.1.0"
-dependencies = [
- "cairo-rs",
- "glib",
- "gtk4",
- "kifu-core",
- "screenplay",
- "tokio",
-]
-
 [[package]]
 name = "libc"
-version = "0.2.140"
+version = "0.2.141"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
+checksum = "3304a64d199bb964be99741b7a14d26972741915b3649639149b2479bb46f4b5"
-
-[[package]]
-name = "lock_api"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
-[[package]]
-name = "log"
-version = "0.4.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
-dependencies = [
- "cfg-if",
-]
 
 [[package]]
 name = "memchr"
@@ -492,28 +443,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "mio"
-version = "0.8.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b9d9a46eff5b4ff64b45a9e316a6d1e0bc719ef429cbec4dc630684212bfdf9"
-dependencies = [
- "libc",
- "log",
- "wasi",
- "windows-sys",
-]
-
-[[package]]
-name = "num_cpus"
-version = "1.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "once_cell"
 version = "1.17.1"
@@ -546,29 +475,6 @@ dependencies = [
  "system-deps",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
-dependencies = [
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.9.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9069cbb9f99e3a5083476ccb29ceb1de18b9118cafa53e90c9551235de2b9521"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-sys",
-]
-
 [[package]]
 name = "pin-project-lite"
 version = "0.2.9"
@@ -623,9 +529,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.52"
+version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d0e1ae9e836cc3beddd63db0df682593d7e2d3d891ae8c9083d2113e1744224"
+checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
 dependencies = [
  "unicode-ident",
 ]
@@ -639,15 +545,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.2.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "rustc_version"
 version = "0.4.0"
@@ -657,19 +554,6 @@ dependencies = [
  "semver",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
-
-[[package]]
-name = "screenplay"
-version = "0.1.0"
-dependencies = [
- "gtk4",
-]
-
 [[package]]
 name = "semver"
 version = "1.0.17"
@@ -678,17 +562,17 @@ checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
 
 [[package]]
 name = "serde"
-version = "1.0.157"
+version = "1.0.159"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "707de5fcf5df2b5788fca98dd7eab490bc2fd9b7ef1404defc462833b83f25ca"
+checksum = "3c04e8343c3daeec41f58990b9d77068df31209f2af111e059e9fe9646693065"
 
 [[package]]
-name = "signal-hook-registry"
+name = "serde_spanned"
-version = "1.4.1"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
+checksum = "0efd8caf556a6cebd3b285caf480045fcc1ac04f6bd786b09a6f11af30c4fcf4"
 dependencies = [
- "libc",
+ "serde",
 ]
 
 [[package]]
@@ -706,16 +590,6 @@ version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
 
-[[package]]
-name = "socket2"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64a4a911eed85daf18834cfaa86a79b7d266ff93ff5ba14005426219480ed662"
-dependencies = [
- "libc",
- "winapi",
-]
-
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -729,9 +603,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.2"
+version = "2.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59d3276aee1fa0c33612917969b5172b5be2db051232a6e4826f1a1a9191b045"
+checksum = "4c9da457c5285ac1f936ebd076af6dac17a61cfe7826f2076b4d015cf47bc8ec"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -740,9 +614,9 @@ dependencies = [
 
 [[package]]
 name = "system-deps"
-version = "6.0.3"
+version = "6.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2955b1fe31e1fa2fbd1976b71cc69a606d7d4da16f6de3333d0c92d51419aeff"
+checksum = "555fc8147af6256f3931a36bb83ad0023240ce9cf2b319dec8236fd1f220b05f"
 dependencies = [
  "cfg-expr",
  "heck",
@@ -768,47 +642,19 @@ checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.2",
+ "syn 2.0.13",
-]
-
-[[package]]
-name = "tokio"
-version = "1.26.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03201d01c3c27a29c8a5cee5b55a93ddae1ccf6f08f65365c2c918f8c1b76f64"
-dependencies = [
- "autocfg",
- "bytes",
- "libc",
- "memchr",
- "mio",
- "num_cpus",
- "parking_lot",
- "pin-project-lite",
- "signal-hook-registry",
- "socket2",
- "tokio-macros",
- "windows-sys",
-]
-
-[[package]]
-name = "tokio-macros"
-version = "1.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 1.0.109",
 ]
 
 [[package]]
 name = "toml"
-version = "0.5.11"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4f7f0dd8d50a853a531c426359045b1998f04219d88799810762cd4ad314234"
+checksum = "b403acf6f2bb0859c93c7f0d967cb4a75a7ac552100f9322faf64dc047669b21"
 dependencies = [
  "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit",
 ]
 
 [[package]]
@@ -816,14 +662,19 @@ name = "toml_datetime"
 version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3ab8ed2edee10b50132aed5f331333428b011c99402b5a534154ed15746f9622"
+dependencies = [
+ "serde",
+]
 
 [[package]]
 name = "toml_edit"
-version = "0.19.7"
+version = "0.19.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc18466501acd8ac6a3f615dd29a3438f8ca6bb3b19537138b3106e575621274"
+checksum = "239410c8609e8125456927e6707163a3b1fdb40561e4b803bc041f466ccfdc13"
 dependencies = [
  "indexmap",
+ "serde",
+ "serde_spanned",
  "toml_datetime",
  "winnow",
 ]
@@ -846,12 +697,6 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
-[[package]]
-name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
-
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -874,77 +719,11 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
-[[package]]
-name = "windows-sys"
-version = "0.45.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
-dependencies = [
- "windows-targets",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
-dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
-]
-
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
-
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
-
-[[package]]
-name = "windows_i686_gnu"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
-
-[[package]]
-name = "windows_i686_msvc"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
-
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
-
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
-
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
-
 [[package]]
 name = "winnow"
-version = "0.3.6"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23d020b441f92996c80d94ae9166e8501e59c7bb56121189dc9eab3bd8216966"
+checksum = "ae8970b36c66498d8ff1d66685dc86b91b29db0c7739899012f63a63814b4b28"
 dependencies = [
  "memchr",
 ]

cyberpunk-splash/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "cyberpunk-splash"
+version = "0.1.0"
+edition = "2021"
+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 = "0.18" }
+cyberpunk   = { path = "../cyberpunk" }
+gio         = { version = "0.18" }
+glib        = { version = "0.18" }
+gtk         = { version = "0.7", package = "gtk4" }

cyberpunk-splash/src/main.rs

@@ -0,0 +1,551 @@
+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::{
+    cell::RefCell,
+    rc::Rc,
+    sync::{Arc, RwLock},
+    time::{Duration, Instant},
+};
+
+const WIDTH: i32 = 1600;
+const HEIGHT: i32 = 600;
+
+#[derive(Clone, Copy, Debug)]
+pub enum State {
+    Running {
+        last_update: Instant,
+        deadline: Instant,
+        timeout: Option<TimeoutAnimation>,
+    },
+    Paused {
+        time_remaining: Duration,
+        timeout: Option<TimeoutAnimation>,
+    },
+}
+
+impl State {
+    fn new(countdown: Duration) -> Self {
+        Self::Paused {
+            time_remaining: countdown,
+            timeout: None,
+        }
+    }
+
+    fn start(&mut self) {
+        if let Self::Paused {
+            time_remaining,
+            timeout,
+        } = self
+        {
+            *self = Self::Running {
+                last_update: Instant::now(),
+                deadline: Instant::now() + *time_remaining,
+                timeout: *timeout,
+            };
+        }
+    }
+
+    fn pause(&mut self) {
+        if let Self::Running {
+            deadline, timeout, ..
+        } = self
+        {
+            *self = Self::Paused {
+                time_remaining: *deadline - Instant::now(),
+                timeout: *timeout,
+            }
+        }
+    }
+
+    fn start_pause(&mut self) {
+        match self {
+            Self::Running { .. } => self.pause(),
+            Self::Paused { .. } => self.start(),
+        }
+    }
+
+    fn run(&mut self, now: Instant) {
+        if let Self::Running {
+            last_update,
+            deadline,
+            timeout,
+        } = self
+        {
+            *last_update = now;
+            if let Some(ref mut timeout) = timeout {
+                // TODO: figure out the actual number of frames
+                timeout.tick(1);
+            }
+            if *last_update > *deadline && timeout.is_none() {
+                *timeout = Some(TimeoutAnimation {
+                    intensity: 1.,
+                    duration: 1.,
+                    ascending: false,
+                });
+            }
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug)]
+pub struct TimeoutAnimation {
+    intensity: f64,
+    duration: f64,
+    ascending: bool,
+}
+
+impl TimeoutAnimation {
+    fn tick(&mut self, frames_elapsed: u8) {
+        let step_size = 1. / (self.duration * 60.);
+        if self.ascending {
+            self.intensity += step_size * frames_elapsed as f64;
+            if self.intensity > 1. {
+                self.intensity = 1.0;
+                self.ascending = false;
+            }
+        } else {
+            self.intensity -= step_size * frames_elapsed as f64;
+            if self.intensity < 0. {
+                self.intensity = 0.0;
+                self.ascending = true;
+            }
+        }
+    }
+}
+
+pub struct SplashPrivate {
+    text: Rc<RefCell<String>>,
+    background: Rc<RefCell<Pattern>>,
+    time_extents: Rc<RefCell<Option<TextExtents>>>,
+    width: Rc<RefCell<i32>>,
+    height: Rc<RefCell<i32>>,
+
+    state: Rc<RefCell<State>>,
+}
+
+impl SplashPrivate {
+    fn set_text(&self, text: String) {
+        *self.text.borrow_mut() = text;
+    }
+
+    fn set_state(&self, state: State) {
+        *self.state.borrow_mut() = state;
+    }
+
+    fn redraw_background(&self) {
+        let pen = GlowPen::new(
+            *self.width.borrow(),
+            *self.height.borrow(),
+            2.,
+            8.,
+            (0.7, 0., 1.),
+        );
+
+        let background =
+            ImageSurface::create(Format::Rgb24, *self.width.borrow(), *self.height.borrow())
+                .unwrap();
+        let context = Context::new(background).unwrap();
+        context.push_group();
+        context.set_source_rgb(0., 0., 0.);
+        let _ = context.paint();
+
+        context.select_font_face("Alegreya Sans SC", FontSlant::Normal, FontWeight::Bold);
+
+        {
+            context.set_source_rgb(0.7, 0., 1.);
+
+            let hashtag = "#CodingTogether";
+            context.set_font_size(64.);
+            let extents = context.text_extents(hashtag).unwrap();
+
+            context.move_to(20., extents.height() + 40.);
+            let _ = context.show_text(hashtag);
+
+            AsymLine {
+                orientation: gtk::Orientation::Horizontal,
+                start_x: 10.,
+                start_y: extents.height() + 10.,
+                start_length: 0.,
+                height: extents.height() / 2.,
+                end_length: 0.,
+                invert: false,
+            }
+            .draw(&pen);
+            pen.stroke();
+
+            AsymLine {
+                orientation: gtk::Orientation::Horizontal,
+                start_x: 20.,
+                start_y: extents.height() + 60.,
+                start_length: extents.width(),
+                height: extents.height() / 2.,
+                end_length: 0.,
+                invert: false,
+            }
+            .draw(&pen);
+            pen.stroke();
+        }
+
+        {
+            context.set_font_size(128.);
+
+            let center_x = *self.width.borrow() as f64 / 2.;
+            let center_y = *self.height.borrow() as f64 / 2.;
+
+            let title_extents = context.text_extents(&self.text.borrow()).unwrap();
+            let title_width = title_extents.width();
+            let title_height = title_extents.height();
+
+            {
+                let start_length = center_x - title_width / 2. - title_height - 20.;
+
+                let title_cutout = AsymLineCutout {
+                    orientation: gtk::Orientation::Horizontal,
+                    start_x: 20.,
+                    start_y: center_y - 20. - title_height / 2.,
+                    start_length,
+                    end_length: *self.width.borrow() as f64 - 120. - start_length,
+                    cutout_length: title_width,
+                    height: title_height,
+                    invert: false,
+                };
+
+                title_cutout.draw(&pen);
+                pen.stroke();
+            }
+
+            {
+                let title_baseline_x = center_x - title_width / 2.;
+                let title_baseline_y = center_y - 20.;
+
+                let gradient = LinearGradient::new(
+                    title_baseline_x,
+                    title_baseline_y - title_height,
+                    title_baseline_x,
+                    title_baseline_y,
+                );
+                gradient.add_color_stop_rgb(0.2, 0.7, 0.0, 1.0);
+                gradient.add_color_stop_rgb(0.8, 0.2, 0.0, 1.0);
+                context.move_to(title_baseline_x, title_baseline_y);
+                let _ = context.set_source(gradient);
+                let _ = context.show_text(&self.text.borrow());
+            }
+        }
+
+        {
+            AsymLine {
+                orientation: gtk::Orientation::Horizontal,
+                start_x: 100.,
+                start_y: *self.height.borrow() as f64 / 2. + 100.,
+                start_length: 400.,
+                height: 50.,
+                end_length: 0.,
+                invert: true,
+            }
+            .draw(&pen);
+            pen.stroke();
+        }
+
+        {
+            context.set_source_rgb(0.7, 0., 1.);
+            AsymLine {
+                orientation: gtk::Orientation::Horizontal,
+                start_x: *self.width.borrow() as f64 / 2. + 100.,
+                start_y: *self.height.borrow() as f64 / 2. + 200.,
+                start_length: 600.,
+                height: 50.,
+                end_length: 0.,
+                invert: false,
+            }
+            .draw(&pen);
+            pen.stroke();
+        }
+
+        let tracery = pen.finish();
+        let _ = context.set_source(tracery);
+        let _ = context.paint();
+
+        let background = context.pop_group().unwrap();
+
+        *self.background.borrow_mut() = background;
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for SplashPrivate {
+    const NAME: &'static str = "Splash";
+    type Type = Splash;
+    type ParentType = gtk::DrawingArea;
+
+    fn new() -> SplashPrivate {
+        // Set up a default plain black background
+        let background = ImageSurface::create(Format::Rgb24, WIDTH, HEIGHT).unwrap();
+        let context = Context::new(background).unwrap();
+        context.push_group();
+        context.set_source_rgb(0., 0., 0.);
+        let _ = context.paint();
+        let background = context.pop_group().unwrap();
+
+        SplashPrivate {
+            text: Rc::new(RefCell::new(String::from(""))),
+            background: Rc::new(RefCell::new(background)),
+            time_extents: Rc::new(RefCell::new(None)),
+            width: Rc::new(RefCell::new(WIDTH)),
+            height: Rc::new(RefCell::new(HEIGHT)),
+
+            state: Rc::new(RefCell::new(State::new(Duration::ZERO))),
+        }
+    }
+}
+impl ObjectImpl for SplashPrivate {}
+impl WidgetImpl for SplashPrivate {}
+impl DrawingAreaImpl for SplashPrivate {}
+
+glib::wrapper! {
+    pub struct Splash(ObjectSubclass<SplashPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl Splash {
+    pub fn new(text: String, state: State) -> Self {
+        let s: Self = Object::builder().build();
+        s.set_width_request(WIDTH);
+        s.set_height_request(HEIGHT);
+
+        s.imp().set_text(text);
+        s.imp().set_state(state);
+        s.imp().redraw_background();
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, width, height| {
+                let background = s.imp().background.borrow();
+                let _ = context.set_source(&*background);
+                let _ = context.paint();
+
+                let state = *s.imp().state.borrow();
+
+                let time = match state {
+                    State::Running { deadline, .. } => deadline - Instant::now(),
+                    State::Paused { time_remaining, .. } => time_remaining,
+                };
+                let minutes = time.as_secs() / 60;
+                let seconds = time.as_secs() % 60;
+
+                let center_x = width as f64 / 2.;
+                let center_y = height as f64 / 2.;
+
+                {
+                    context.select_font_face(
+                        "Alegreya Sans SC",
+                        FontSlant::Normal,
+                        FontWeight::Bold,
+                    );
+                    context.set_font_size(128.);
+
+                    let time = format!("{:02}' {:02}\"", minutes, seconds);
+
+                    let time_extents = context.text_extents(&time).unwrap();
+
+                    let mut saved_extents = s.imp().time_extents.borrow_mut();
+                    if saved_extents.is_none() {
+                        *saved_extents = Some(time_extents);
+                    }
+
+                    let time_baseline_x = center_x - time_extents.width() / 2.;
+                    let time_baseline_y = center_y + 100.;
+
+                    let gradient = LinearGradient::new(
+                        time_baseline_x,
+                        time_baseline_y - time_extents.height(),
+                        time_baseline_x,
+                        time_baseline_y,
+                    );
+                    let (running, timeout_animation) = match state {
+                        State::Running { timeout, .. } => (true, timeout),
+                        State::Paused { timeout, .. } => (false, timeout),
+                    };
+                    match timeout_animation {
+                        Some(ref animation) => {
+                            gradient.add_color_stop_rgba(0.2, 0.2, 0.0, 1.0, animation.intensity);
+                            gradient.add_color_stop_rgba(0.8, 0.7, 0.0, 1.0, animation.intensity);
+                            let _ = context.set_source(gradient);
+                        }
+                        None => {
+                            if running {
+                                gradient.add_color_stop_rgb(0.2, 0.2, 0.0, 1.0);
+                                gradient.add_color_stop_rgb(0.8, 0.7, 0.0, 1.0);
+                                let _ = context.set_source(gradient);
+                            } else {
+                                context.set_source_rgb(0.3, 0.3, 0.3);
+                            }
+                        }
+                    }
+                    context.move_to(time_baseline_x, time_baseline_y);
+                    let _ = context.show_text(&time);
+                };
+
+                if let Some(extents) = *s.imp().time_extents.borrow() {
+                    context.set_source_rgb(0.7, 0.0, 1.0);
+                    let time_meter = SlashMeter {
+                        orientation: gtk::Orientation::Horizontal,
+                        start_x: center_x + extents.width() / 2. + 50.,
+                        start_y: center_y + 100.,
+                        count: 5,
+                        fill_count: minutes as u8,
+                        height: 60.,
+                        length: 100.,
+                    };
+                    time_meter.draw(context);
+                }
+            }
+        });
+
+        s.connect_resize(|s, width, height| {
+            *s.imp().width.borrow_mut() = width;
+            *s.imp().height.borrow_mut() = height;
+            s.imp().redraw_background();
+        });
+
+        s
+    }
+
+    pub fn set_state(&self, state: State) {
+        self.imp().set_state(state);
+        self.queue_draw();
+    }
+}
+
+
+fn main() {
+    let app = gtk::Application::builder()
+        .application_id("com.luminescent-dreams.cyberpunk-splash")
+        .flags(gio::ApplicationFlags::HANDLES_OPEN)
+        .build();
+
+    app.add_main_option(
+        "title",
+        glib::char::Char::from(b't'),
+        glib::OptionFlags::IN_MAIN,
+        glib::OptionArg::String,
+        "",
+        None,
+    );
+    app.add_main_option(
+        "countdown",
+        glib::char::Char::from(b'c'),
+        glib::OptionFlags::IN_MAIN,
+        glib::OptionArg::String,
+        "",
+        None,
+    );
+
+    let state = Arc::new(RwLock::new(State::new(Duration::from_secs(5 * 60))));
+    let title = Arc::new(RwLock::new("".to_owned()));
+
+    app.connect_command_line(|_, _args| {
+        println!("connect_command_line");
+        1
+    });
+    app.connect_handle_local_options({
+        let title = title.clone();
+        let state = state.clone();
+        move |_, options| {
+            println!("connect_handle_local_options");
+            *title.write().unwrap() = options.lookup::<String>("title").unwrap().unwrap();
+            let countdown = match options.lookup::<String>("countdown") {
+                Ok(Some(countdown_str)) => {
+                    let parts = countdown_str.split(':').collect::<Vec<&str>>();
+                    match parts.len() {
+                        2 => {
+                            let minutes = parts[0].parse::<u64>().unwrap();
+                            let seconds = parts[1].parse::<u64>().unwrap();
+                            Duration::from_secs(minutes * 60 + seconds)
+                        }
+                        1 => {
+                            let seconds = parts[1].parse::<u64>().unwrap();
+                            Duration::from_secs(seconds)
+                        }
+                        _ => Duration::from_secs(300),
+                    }
+                }
+                _ => Duration::from_secs(300),
+            };
+            match *state.write().unwrap() {
+                State::Running {
+                    ref mut deadline, ..
+                } => *deadline = Instant::now() + countdown,
+                State::Paused {
+                    ref mut time_remaining,
+                    ..
+                } => *time_remaining = countdown,
+            }
+            -1
+        }
+    });
+
+    app.connect_open(move |app, files, args| {
+        println!("called open");
+        println!("files: {}", files.len());
+        println!("args: {}", args);
+
+        app.activate();
+    });
+
+    app.connect_activate(move |app| {
+        let (gtk_tx, gtk_rx) =
+            gtk::glib::MainContext::channel::<State>(gtk::glib::Priority::DEFAULT);
+
+        let window = gtk::ApplicationWindow::new(app);
+        window.present();
+
+        let splash = Splash::new(title.read().unwrap().clone(), *state.read().unwrap());
+
+        window.set_child(Some(&splash));
+
+        window.connect_maximized_notify(|window| {
+            window.fullscreen();
+        });
+
+        let keyboard_events = EventControllerKey::new();
+        keyboard_events.connect_key_released({
+            let window = window.clone();
+            let state = state.clone();
+            move |_, key, _, _| {
+                let name = key
+                    .name()
+                    .map(|s| s.as_str().to_owned())
+                    .unwrap_or("".to_owned());
+                match name.as_ref() {
+                    "Escape" => window.unfullscreen(),
+                    "space" => state.write().unwrap().start_pause(),
+                    _ => {}
+                }
+            }
+        });
+        window.add_controller(keyboard_events);
+
+        gtk_rx.attach(None, move |state| {
+            splash.set_state(state);
+            glib::ControlFlow::Continue
+        });
+
+        std::thread::spawn({
+            let state = state.clone();
+            move || {
+                state.write().unwrap().start();
+                loop {
+                    std::thread::sleep(Duration::from_millis(1000 / 60));
+                    state.write().unwrap().run(Instant::now());
+                    let _ = gtk_tx.send(*state.read().unwrap());
+                }
+            }
+        });
+    });
+
+    app.run();
+}

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

@@ -0,0 +1,31 @@
+[package]
+name = "dashboard"
+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 = "0.5", package = "libadwaita", features = [ "v1_2" ] }
+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 = "0.18" }
+glib                = { version = "0.18" }
+gdk                 = { version = "0.7", package = "gdk4" }
+gtk                 = { version = "0.7", package = "gtk4" }
+lazy_static         = { version = "1.4" }
+memorycache         = { path = "../memorycache/" }
+reqwest             = { version = "0.11", features = ["json"] }
+serde_json          = { version = "1" }
+serde               = { version = "1", features = [ "derive" ] }
+tokio               = { version = "1", features = ["full"] }
+unic-langid         = { version = "0.9" }
+
+[build-dependencies]
+glib-build-tools = "0.18"
+

dashboard/build.rs

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

dashboard/dashboard.desktop

@@ -0,0 +1,6 @@
+[Desktop Entry]
+Type=Application
+Version=1.0
+Name=dashboard
+Comment=My personal system dashboard
+Exec=dashboard

dashboard/dist.sh

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

dashboard/gresources.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+    <gresource prefix="/com/luminescent-dreams/dashboard/">
+        <file>style.css</file>
+    </gresource>
+</gresources>
+

dashboard/resources/style.css

@@ -0,0 +1,9 @@
+label {
+    font-size: 200%;
+    padding: 4px;
+}
+
+.highlight {
+    color: @accent_fg_color;
+    background-color: @accent_bg_color;
+}

dashboard/src/app_window.rs

@@ -0,0 +1,77 @@
+use crate::{
+    components::{Date, Events, TransitCard, TransitClock},
+    types::State,
+};
+use adw::prelude::AdwApplicationWindowExt;
+use gio::resources_lookup_data;
+use gtk::{prelude::*, STYLE_PROVIDER_PRIORITY_USER};
+
+#[derive(Clone)]
+pub struct ApplicationWindow {
+    pub window: adw::ApplicationWindow,
+    pub date_label: Date,
+    pub events: Events,
+    pub transit_card: TransitCard,
+    pub transit_clock: TransitClock,
+}
+
+impl ApplicationWindow {
+    pub fn new(app: &adw::Application) -> Self {
+        let window = adw::ApplicationWindow::new(app);
+
+        let stylesheet = String::from_utf8(
+            resources_lookup_data(
+                "/com/luminescent-dreams/dashboard/style.css",
+                gio::ResourceLookupFlags::NONE,
+            )
+            .expect("stylesheet should just be available")
+            .to_vec(),
+        )
+        .expect("to parse stylesheet");
+
+        let provider = gtk::CssProvider::new();
+        provider.load_from_data(&stylesheet);
+        let context = window.style_context();
+        context.add_provider(&provider, STYLE_PROVIDER_PRIORITY_USER);
+
+        let layout = gtk::Box::builder()
+            .orientation(gtk::Orientation::Vertical)
+            .hexpand(true)
+            .vexpand(true)
+            .build();
+
+        let date_label = Date::default();
+        let header = adw::HeaderBar::builder()
+            .title_widget(&date_label)
+            .build();
+        layout.append(&header);
+
+        let events = Events::default();
+        layout.append(&events);
+
+        let transit_card = TransitCard::default();
+        layout.append(&transit_card);
+
+        let transit_clock = TransitClock::default();
+        layout.append(&transit_clock);
+
+        window.set_content(Some(&layout));
+
+        Self {
+            window,
+            date_label,
+            events,
+            transit_card,
+            transit_clock,
+        }
+    }
+
+    pub fn update_state(&self, state: State) {
+        self.date_label.update_date(state.date);
+        self.events.set_events(state.events, state.next_event);
+        if let Some(transit) = state.transit {
+            self.transit_card.update_transit(&transit);
+            self.transit_clock.update_transit(transit);
+        }
+    }
+}

dashboard/src/components/date.rs

@@ -0,0 +1,65 @@
+use std::{cell::RefCell, rc::Rc};
+
+use chrono::NaiveDate;
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+pub struct DatePrivate {
+    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(date)),
+            label: Rc::new(RefCell::new(gtk::Label::new(None))),
+        }
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DatePrivate {
+    const NAME: &'static str = "Date";
+    type Type = Date;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for DatePrivate {}
+impl WidgetImpl for DatePrivate {}
+impl BoxImpl for DatePrivate {}
+
+glib::wrapper! {
+    pub struct Date(ObjectSubclass<DatePrivate>) @extends gtk::Box, gtk::Widget;
+}
+
+impl Default for Date {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_margin_bottom(8);
+        s.set_margin_top(8);
+        s.set_margin_start(8);
+        s.set_margin_end(8);
+
+        s.append(&*s.imp().label.borrow());
+
+        s.redraw();
+        s
+    }
+}
+
+impl Date {
+    pub fn update_date(&self, date: NaiveDate) {
+        *self.imp().date.borrow_mut() = date;
+        self.redraw();
+    }
+
+    fn redraw(&self) {
+        let date = self.imp().date.borrow();
+        self.imp()
+            .label
+            .borrow_mut()
+            .set_text(&date.format("%Y %B %d").to_string());
+    }
+}

dashboard/src/components/events.rs

@@ -0,0 +1,95 @@
+use crate::{
+    components::Date,
+    solstices::{self, YearlyEvents},
+};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+/*
+#[derive(PartialEq)]
+pub enum UpcomingEvent {
+    SpringEquinox,
+    SummerSolstice,
+    AutumnEquinox,
+    WinterSolstice,
+}
+*/
+
+#[derive(Default)]
+pub struct EventsPrivate {
+    spring_equinox: Date,
+    summer_solstice: Date,
+    autumn_equinox: Date,
+    winter_solstice: Date,
+    // next: UpcomingEvent,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for EventsPrivate {
+    const NAME: &'static str = "Events";
+    type Type = Events;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for EventsPrivate {}
+impl WidgetImpl for EventsPrivate {}
+impl BoxImpl for EventsPrivate {}
+
+glib::wrapper! {
+    pub struct Events(ObjectSubclass<EventsPrivate>) @extends gtk::Widget, gtk::Box, @implements gtk::Orientable;
+}
+
+impl Default for Events {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Horizontal);
+        s.set_spacing(8);
+
+        s.append(&s.imp().spring_equinox);
+        s.append(&s.imp().summer_solstice);
+        s.append(&s.imp().autumn_equinox);
+        s.append(&s.imp().winter_solstice);
+
+        s
+    }
+}
+
+impl Events {
+    pub fn set_events(&self, events: YearlyEvents, next_event: solstices::Event) {
+        self.imp()
+            .spring_equinox
+            .update_date(events.spring_equinox.date_naive());
+
+        self.imp()
+            .summer_solstice
+            .update_date(events.summer_solstice.date_naive());
+
+        self.imp()
+            .autumn_equinox
+            .update_date(events.autumn_equinox.date_naive());
+
+        self.imp()
+            .winter_solstice
+            .update_date(events.winter_solstice.date_naive());
+
+        self.imp().spring_equinox.remove_css_class("highlight");
+        self.imp().summer_solstice.remove_css_class("highlight");
+        self.imp().autumn_equinox.remove_css_class("highlight");
+        self.imp().winter_solstice.remove_css_class("highlight");
+
+        match next_event {
+            solstices::Event::SpringEquinox(_) => {
+                self.imp().spring_equinox.add_css_class("highlight")
+            }
+            solstices::Event::SummerSolstice(_) => {
+                self.imp().summer_solstice.add_css_class("highlight")
+            }
+            solstices::Event::AutumnEquinox(_) => {
+                self.imp().autumn_equinox.add_css_class("highlight")
+            }
+            solstices::Event::WinterSolstice(_) => {
+                self.imp().winter_solstice.add_css_class("highlight")
+            }
+        }
+    }
+}

dashboard/src/components/label.rs

@@ -0,0 +1,57 @@
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+#[derive(Default)]
+pub struct LabelPrivate {
+    label: gtk::Label,
+    icon: gtk::Image,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for LabelPrivate {
+    const NAME: &'static str = "Label";
+    type Type = Label;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for LabelPrivate {}
+impl WidgetImpl for LabelPrivate {}
+impl BoxImpl for LabelPrivate {}
+
+glib::wrapper! {
+    pub struct Label(ObjectSubclass<LabelPrivate>) @extends gtk::Box, gtk::Widget,
+        @implements gtk::Orientable;
+}
+
+impl Label {
+    pub fn new(text: Option<&str>, icon: Option<gio::ThemedIcon>) -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Horizontal);
+        s.set_spacing(8);
+        s.set_margin_bottom(8);
+        s.set_margin_top(8);
+        s.set_margin_start(8);
+        s.set_margin_end(8);
+
+        s.append(&s.imp().icon);
+        s.append(&s.imp().label);
+
+        if let Some(text) = text {
+            s.set_text(text);
+        }
+
+        if let Some(icon) = icon {
+            s.set_icon(icon);
+        }
+
+        s
+    }
+
+    pub fn set_text(&self, text: &str) {
+        self.imp().label.set_text(text);
+    }
+
+    pub fn set_icon(&self, icon: gio::ThemedIcon) {
+        self.imp().icon.set_from_gicon(&icon);
+    }
+}

dashboard/src/components/mod.rs

@@ -0,0 +1,14 @@
+mod date;
+pub use date::Date;
+
+mod events;
+pub use events::Events;
+
+mod label;
+pub use label::Label;
+
+mod transit_card;
+pub use transit_card::TransitCard;
+
+mod transit_clock;
+pub use transit_clock::TransitClock;

dashboard/src/components/transit_card.rs

@@ -0,0 +1,74 @@
+use crate::{components::Label, soluna_client::SunMoon};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+pub struct TransitCardPrivate {
+    sunrise: Label,
+    sunset: Label,
+    moonrise: Label,
+    moonset: Label,
+}
+
+impl Default for TransitCardPrivate {
+    fn default() -> Self {
+        Self {
+            sunrise: Label::new(None, Some(gio::ThemedIcon::new("daytime-sunrise-symbolic"))),
+            sunset: Label::new(None, Some(gio::ThemedIcon::new("daytime-sunset-symbolic"))),
+            moonrise: Label::new(None, Some(gio::ThemedIcon::new("moon-outline-symbolic"))),
+            moonset: Label::new(None, Some(gio::ThemedIcon::new("moon-outline-symbolic"))),
+        }
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for TransitCardPrivate {
+    const NAME: &'static str = "TransitCard";
+    type Type = TransitCard;
+    type ParentType = gtk::Grid;
+}
+
+impl ObjectImpl for TransitCardPrivate {}
+impl WidgetImpl for TransitCardPrivate {}
+impl GridImpl for TransitCardPrivate {}
+
+glib::wrapper! {
+    pub struct TransitCard(ObjectSubclass<TransitCardPrivate>) @extends gtk::Grid, gtk::Widget;
+}
+
+impl Default for TransitCard {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.add_css_class("card");
+        s.set_column_homogeneous(true);
+
+        s.attach(&s.imp().sunrise, 0, 0, 1, 1);
+        s.attach(&s.imp().sunset, 0, 1, 1, 1);
+        s.attach(&s.imp().moonrise, 1, 0, 1, 1);
+        s.attach(&s.imp().moonset, 1, 1, 1, 1);
+
+        s
+    }
+}
+
+impl TransitCard {
+    pub fn update_transit(&self, transit_info: &SunMoon) {
+        self.imp()
+            .sunrise
+            .set_text(format!("{}", transit_info.sunrise.format("%H:%M")).as_ref());
+        self.imp()
+            .sunset
+            .set_text(format!("{}", transit_info.sunset.format("%H:%M")).as_ref());
+        self.imp().moonrise.set_text(
+            &transit_info
+                .moonrise
+                .map(|time| format!("{}", time.format("%H:%M")))
+                .unwrap_or("".to_owned()),
+        );
+        self.imp().moonset.set_text(
+            &transit_info
+                .moonset
+                .map(|time| format!("{}", time.format("%H:%M")))
+                .unwrap_or("".to_owned()),
+        );
+    }
+}

dashboard/src/components/transit_clock.rs

@@ -0,0 +1,103 @@
+use crate::{
+    drawing::{Color, PieChart, Wedge},
+    soluna_client::SunMoon,
+};
+use chrono::{Duration, NaiveTime};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, f64::consts::PI, rc::Rc};
+
+#[derive(Default)]
+pub struct TransitClockPrivate {
+    info: Rc<RefCell<Option<SunMoon>>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for TransitClockPrivate {
+    const NAME: &'static str = "TransitClock";
+    type Type = TransitClock;
+    type ParentType = gtk::DrawingArea;
+}
+
+impl ObjectImpl for TransitClockPrivate {}
+impl WidgetImpl for TransitClockPrivate {}
+impl DrawingAreaImpl for TransitClockPrivate {}
+
+glib::wrapper! {
+    pub struct TransitClock(ObjectSubclass<TransitClockPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl Default for TransitClock {
+    fn default() -> Self {
+        let s: Self = Object::builder().build();
+        s.set_width_request(500);
+        s.set_height_request(500);
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, width, height| {
+                let style_context = WidgetExt::style_context(&s);
+                let center_x = width as f64 / 2.;
+                let center_y = height as f64 / 2.;
+                let radius = width.min(height) as f64 / 2. * 0.9;
+                if let Some(ref info) = *s.imp().info.borrow() {
+                    let full_day = Duration::days(1).num_seconds() as f64;
+                    let sunrise = info.sunrise - NaiveTime::from_hms_opt(0, 0, 0).unwrap();
+                    let sunset = info.sunset - NaiveTime::from_hms_opt(0, 0, 0).unwrap();
+
+                    let night_color = style_context.lookup_color("dark_5").unwrap();
+                    let day_color = style_context.lookup_color("blue_1").unwrap();
+
+                    PieChart::new(&style_context)
+                        .center(center_x, center_y)
+                        .radius(radius)
+                        .rotation(-PI / 2.)
+                        .wedges(
+                            vec![
+                                Wedge {
+                                    start_angle: (PI * 2.) * sunset.num_seconds() as f64 / full_day,
+                                    end_angle: (PI * 2.) * sunrise.num_seconds() as f64 / full_day,
+                                    color: Color {
+                                        r: night_color.red() as f64,
+                                        g: night_color.green() as f64,
+                                        b: night_color.blue() as f64,
+                                    },
+                                },
+                                Wedge {
+                                    start_angle: (PI * 2.) * sunrise.num_seconds() as f64
+                                        / full_day,
+                                    end_angle: (PI * 2.) * sunset.num_seconds() as f64 / full_day,
+                                    color: Color {
+                                        r: day_color.red() as f64,
+                                        g: day_color.green() as f64,
+                                        b: day_color.blue() as f64,
+                                    },
+                                },
+                            ]
+                            .into_iter(),
+                        )
+                        .draw(context);
+
+                    (0..24).for_each(|tick| {
+                        context.set_source_rgb(0., 0., 0.);
+                        context.translate(center_x, center_y);
+                        context.rotate(tick as f64 * (PI / 12.));
+                        context.move_to(radius - 5., 0.);
+                        context.line_to(radius - 10., 0.);
+                        let _ = context.stroke();
+                        context.identity_matrix();
+                    });
+                }
+            }
+        });
+
+        s
+    }
+}
+
+impl TransitClock {
+    pub fn update_transit(&self, transit_info: SunMoon) {
+        *self.imp().info.borrow_mut() = Some(transit_info);
+        self.queue_draw();
+    }
+}

dashboard/src/drawing/mod.rs

@@ -0,0 +1,2 @@
+mod pie_chart;
+pub use pie_chart::{Color, PieChart, Wedge};

dashboard/src/drawing/pie_chart.rs

@@ -0,0 +1,96 @@
+use cairo::Context;
+use gtk::{gdk::RGBA, prelude::*, StyleContext};
+use std::f64::consts::PI;
+
+#[derive(Clone, Debug)]
+pub struct Color {
+    pub r: f64,
+    pub g: f64,
+    pub b: f64,
+}
+
+#[derive(Clone, Debug)]
+pub struct Wedge {
+    pub start_angle: f64,
+    pub end_angle: f64,
+    pub color: Color,
+}
+
+pub struct PieChart {
+    rotation: f64,
+    wedges: Vec<Wedge>,
+    center_x: f64,
+    center_y: f64,
+    radius: f64,
+
+    border_color: RGBA,
+}
+
+impl PieChart {
+    pub fn new(style_context: &StyleContext) -> Self {
+        Self {
+            rotation: 0.,
+            wedges: vec![],
+            center_x: 0.,
+            center_y: 0.,
+            radius: 0.,
+            border_color: style_context.lookup_color("theme_fg_color").unwrap(),
+        }
+    }
+
+    pub fn rotation(mut self, rotation: f64) -> Self {
+        self.rotation = rotation;
+        self
+    }
+
+    pub fn wedges(mut self, wedge: impl Iterator<Item = Wedge>) -> Self {
+        let mut wedges: Vec<Wedge> = wedge.collect();
+        self.wedges.append(&mut wedges);
+        self
+    }
+
+    pub fn center(mut self, center_x: f64, center_y: f64) -> Self {
+        self.center_x = center_x;
+        self.center_y = center_y;
+        self
+    }
+
+    pub fn radius(mut self, radius: f64) -> Self {
+        self.radius = radius;
+        self
+    }
+
+    pub fn draw(self, context: &Context) {
+        context.set_source_rgba(0., 0., 0., 0.);
+        let _ = context.paint();
+
+        context.set_line_width(2.);
+
+        self.wedges.iter().for_each(
+            |Wedge {
+                 start_angle,
+                 end_angle,
+                 color,
+             }| {
+                context.move_to(self.center_x, self.center_y);
+                context.set_source_rgb(color.r, color.g, color.b);
+                context.arc(
+                    self.center_x,
+                    self.center_y,
+                    self.radius,
+                    start_angle + self.rotation,
+                    end_angle + self.rotation,
+                );
+                let _ = context.fill();
+            },
+        );
+
+        context.set_source_rgb(
+            self.border_color.red() as f64,
+            self.border_color.green() as f64,
+            self.border_color.blue() as f64,
+        );
+        context.arc(self.center_x, self.center_y, self.radius, 0., 2. * PI);
+        let _ = context.stroke();
+    }
+}

dashboard/src/main.rs

@@ -0,0 +1,143 @@
+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;
+
+mod components;
+
+mod drawing;
+
+mod soluna_client;
+use soluna_client::SolunaClient;
+
+mod solstices;
+use solstices::EVENTS;
+
+mod types;
+use types::State;
+
+/*
+const EO_TEXT: &'static str = "
+day = {$day ->
+    *[Sunday] Dimanĉo
+    [Monday] Lundo
+    [Tuesday] Mardo
+    [Wednesday] Merkredo
+    [Thursday] Ĵaŭdo
+    [Friday] Vendredo
+    [Saturday] Sabato
+    [LeapDay] Leap Day
+    [YearDay] Year Day
+}
+month = {$month ->
+    *[January] Januaro
+    [February] Februaro
+    [March] Marto
+    [April] Aprilo
+    [May] Mayo
+    [June] Junio
+    [Sol] Solo
+    [July] Julio
+    [August] Aŭgusto
+    [September] Septembro
+    [October] Oktobro
+    [November] Novembro
+    [December] Decembro
+}
+spring_equinox = Printempa Ekvinokso
+summer_solstice = Somera Solstico
+autumn_equinox = Aŭtuna Ekvinokso
+winter_solstice = Vintra Solstico
+";
+*/
+
+#[derive(Clone, Debug)]
+pub enum Message {
+    Refresh(State),
+}
+
+#[derive(Clone)]
+pub struct Core {
+    tx: Arc<RwLock<Option<Sender<Message>>>>,
+}
+
+pub fn main() {
+    gio::resources_register_include!("com.luminescent-dreams.dashboard.gresource")
+        .expect("Failed to register resources");
+
+    let app = adw::Application::builder()
+        .application_id("com.luminescent-dreams.dashboard")
+        .resource_base_path("/com/luminescent-dreams/dashboard")
+        .build();
+
+    let latitude = Latitude::from(41.78);
+    let longitude = Longitude::from(-71.41);
+
+    let runtime = tokio::runtime::Builder::new_multi_thread()
+        .enable_all()
+        .build()
+        .unwrap();
+
+    let core = Core {
+        tx: Arc::new(RwLock::new(None)),
+    };
+
+    runtime.spawn({
+        let core = core.clone();
+        async move {
+            let soluna_client = SolunaClient::new();
+
+            loop {
+                let transit = soluna_client
+                    .request(latitude.clone(), longitude.clone(), Local::now())
+                    .await;
+
+                let now = Local::now();
+                let state = State {
+                    date: now.date_naive(),
+                    next_event: EVENTS.next_event(now.with_timezone(&Utc)).unwrap(),
+                    events: EVENTS.yearly_events(now.year()).unwrap(),
+                    transit: Some(transit),
+                };
+
+                let gtk_tx = core.tx.read().unwrap().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));
+                }
+            }
+        }
+    });
+
+    app.connect_activate(move |app| {
+        let (gtk_tx, gtk_rx) = async_std::channel::unbounded();
+
+        *core.tx.write().unwrap() = Some(gtk_tx);
+
+        let window = ApplicationWindow::new(app);
+        window.window.present();
+
+        glib::spawn_future_local(async move {
+            loop {
+                let Message::Refresh(state) = gtk_rx.recv().await.unwrap();
+                window.update_state(state);
+            }
+        });
+    });
+
+    let args: Vec<String> = env::args().collect();
+    ApplicationExtManual::run_with_args(&app, &args);
+    runtime.shutdown_background();
+}

dashboard/src/moon.rs

@@ -0,0 +1,14 @@
+use svg::{
+    node::element::{Circle, Image},
+    Document,
+};
+
+pub fn moon() -> Document {
+    /*
+    svg(width="100%", height="100%", xmlns="http://www.w3.org/2000/svg") {
+        circle(cx="50", cy="50", r="50", stroke="green", fill="none");
+    }
+    */
+    let img = Image::new().set("href", "/moon-small.png");
+    Document::new().add(img)
+}

dashboard/src/solstices.rs

@@ -0,0 +1,202 @@
+use std::collections::HashMap;
+
+use chrono::prelude::*;
+use lazy_static::lazy_static;
+use serde::{Deserialize, Serialize};
+
+// http://astropixels.com/ephemeris/soleq2001.html
+const SOLSTICE_TEXT: &str = "
+ 2001      Mar 20  13:31     Jun 21  07:38     Sep 22  23:05     Dec 21  19:22
+ 2002      Mar 20  19:16     Jun 21  13:25     Sep 23  04:56     Dec 22  01:15
+ 2003      Mar 21  01:00     Jun 21  19:11     Sep 23  10:47     Dec 22  07:04
+ 2004      Mar 20  06:49     Jun 21  00:57     Sep 22  16:30     Dec 21  12:42
+ 2005      Mar 20  12:34     Jun 21  06:46     Sep 22  22:23     Dec 21  18:35
+ 2006      Mar 20  18:25     Jun 21  12:26     Sep 23  04:04     Dec 22  00:22
+ 2007      Mar 21  00:07     Jun 21  18:06     Sep 23  09:51     Dec 22  06:08
+ 2008      Mar 20  05:49     Jun 21  00:00     Sep 22  15:45     Dec 21  12:04
+ 2009      Mar 20  11:44     Jun 21  05:45     Sep 22  21:18     Dec 21  17:47
+ 2010      Mar 20  17:32     Jun 21  11:28     Sep 23  03:09     Dec 21  23:38
+
+ 2011      Mar 20  23:21     Jun 21  17:16     Sep 23  09:05     Dec 22  05:30
+ 2012      Mar 20  05:15     Jun 20  23:08     Sep 22  14:49     Dec 21  11:12
+ 2013      Mar 20  11:02     Jun 21  05:04     Sep 22  20:44     Dec 21  17:11
+ 2014      Mar 20  16:57     Jun 21  10:52     Sep 23  02:30     Dec 21  23:03
+ 2015      Mar 20  22:45     Jun 21  16:38     Sep 23  08:20     Dec 22  04:48
+ 2016      Mar 20  04:31     Jun 20  22:35     Sep 22  14:21     Dec 21  10:45
+ 2017      Mar 20  10:29     Jun 21  04:25     Sep 22  20:02     Dec 21  16:29
+ 2018      Mar 20  16:15     Jun 21  10:07     Sep 23  01:54     Dec 21  22:22
+ 2019      Mar 20  21:58     Jun 21  15:54     Sep 23  07:50     Dec 22  04:19
+ 2020      Mar 20  03:50     Jun 20  21:43     Sep 22  13:31     Dec 21  10:03
+
+ 2021      Mar 20  09:37     Jun 21  03:32     Sep 22  19:21     Dec 21  15:59
+ 2022      Mar 20  15:33     Jun 21  09:14     Sep 23  01:04     Dec 21  21:48
+ 2023      Mar 20  21:25     Jun 21  14:58     Sep 23  06:50     Dec 22  03:28
+ 2024      Mar 20  03:07     Jun 20  20:51     Sep 22  12:44     Dec 21  09:20
+ 2025      Mar 20  09:02     Jun 21  02:42     Sep 22  18:20     Dec 21  15:03
+ 2026      Mar 20  14:46     Jun 21  08:25     Sep 23  00:06     Dec 21  20:50
+ 2027      Mar 20  20:25     Jun 21  14:11     Sep 23  06:02     Dec 22  02:43
+ 2028      Mar 20  02:17     Jun 20  20:02     Sep 22  11:45     Dec 21  08:20
+ 2029      Mar 20  08:01     Jun 21  01:48     Sep 22  17:37     Dec 21  14:14
+ 2030      Mar 20  13:51     Jun 21  07:31     Sep 22  23:27     Dec 21  20:09
+
+ 2031      Mar 20  19:41     Jun 21  13:17     Sep 23  05:15     Dec 22  01:56
+ 2032      Mar 20  01:23     Jun 20  19:09     Sep 22  11:11     Dec 21  07:57
+ 2033      Mar 20  07:23     Jun 21  01:01     Sep 22  16:52     Dec 21  13:45
+ 2034      Mar 20  13:18     Jun 21  06:45     Sep 22  22:41     Dec 21  19:35
+ 2035      Mar 20  19:03     Jun 21  12:33     Sep 23  04:39     Dec 22  01:31
+ 2036      Mar 20  01:02     Jun 20  18:31     Sep 22  10:23     Dec 21  07:12
+ 2037      Mar 20  06:50     Jun 21  00:22     Sep 22  16:13     Dec 21  13:08
+ 2038      Mar 20  12:40     Jun 21  06:09     Sep 22  22:02     Dec 21  19:01
+ 2039      Mar 20  18:32     Jun 21  11:58     Sep 23  03:50     Dec 22  00:41
+ 2040      Mar 20  00:11     Jun 20  17:46     Sep 22  09:44     Dec 21  06:33
+
+ 2041      Mar 20  06:07     Jun 20  23:37     Sep 22  15:27     Dec 21  12:19
+ 2042      Mar 20  11:53     Jun 21  05:16     Sep 22  21:11     Dec 21  18:04
+ 2043      Mar 20  17:29     Jun 21  10:59     Sep 23  03:07     Dec 22  00:02
+ 2044      Mar 19  23:20     Jun 20  16:50     Sep 22  08:47     Dec 21  05:43
+ 2045      Mar 20  05:08     Jun 20  22:34     Sep 22  14:33     Dec 21  11:36
+ 2046      Mar 20  10:58     Jun 21  04:15     Sep 22  20:22     Dec 21  17:28
+ 2047      Mar 20  16:52     Jun 21  10:02     Sep 23  02:07     Dec 21  23:07
+ 2048      Mar 19  22:34     Jun 20  15:54     Sep 22  08:01     Dec 21  05:02
+ 2049      Mar 20  04:28     Jun 20  21:47     Sep 22  13:42     Dec 21  10:51
+ 2050      Mar 20  10:20     Jun 21  03:33     Sep 22  19:29     Dec 21  16:39
+";
+
+#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
+pub struct YearlyEvents {
+    pub year: i32,
+    pub spring_equinox: chrono::DateTime<chrono::Utc>,
+    pub summer_solstice: chrono::DateTime<chrono::Utc>,
+    pub autumn_equinox: chrono::DateTime<chrono::Utc>,
+    pub winter_solstice: chrono::DateTime<chrono::Utc>,
+}
+
+#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
+pub enum Event {
+    SpringEquinox(chrono::DateTime<chrono::Utc>),
+    SummerSolstice(chrono::DateTime<chrono::Utc>),
+    AutumnEquinox(chrono::DateTime<chrono::Utc>),
+    WinterSolstice(chrono::DateTime<chrono::Utc>),
+}
+
+impl Event {
+    pub fn date(&self) -> chrono::DateTime<chrono::Utc> {
+        match *self {
+            Event::SpringEquinox(d) => d,
+            Event::SummerSolstice(d) => d,
+            Event::AutumnEquinox(d) => d,
+            Event::WinterSolstice(d) => d,
+        }
+    }
+}
+
+fn parse_time<'a>(
+    year: &str,
+    iter: impl Iterator<Item = &'a str>,
+) -> chrono::DateTime<chrono::Utc> {
+    let parts = iter.collect::<Vec<&str>>();
+    let p = format!("{} {} {} {}", year, parts[0], parts[1], parts[2]);
+    NaiveDateTime::parse_from_str(&p, "%Y %b %d %H:%M")
+        .unwrap()
+        .and_utc()
+}
+
+fn parse_line(year: &str, rest: &[&str]) -> YearlyEvents {
+    let spring = parse_time(year, rest.iter().take(3).cloned());
+    let summer = parse_time(year, rest.iter().skip(3).take(3).cloned());
+    let autumn = parse_time(year, rest.iter().skip(6).take(3).cloned());
+    let winter = parse_time(year, rest.iter().skip(9).take(3).cloned());
+    YearlyEvents {
+        year: year.parse::<i32>().unwrap(),
+        spring_equinox: spring,
+        summer_solstice: summer,
+        autumn_equinox: autumn,
+        winter_solstice: winter,
+    }
+}
+
+fn parse_events() -> Vec<Option<YearlyEvents>> {
+    SOLSTICE_TEXT
+        .lines()
+        .map(|line| {
+            match line
+                .split(' ')
+                .filter(|elem| !elem.is_empty())
+                .collect::<Vec<&str>>()
+                .as_slice()
+            {
+                [year, rest @ ..] => Some(parse_line(year, rest)),
+                _ => None,
+            }
+        })
+        .collect()
+}
+
+pub struct Solstices(HashMap<i32, YearlyEvents>);
+
+impl Solstices {
+    pub fn yearly_events(&self, year: i32) -> Option<YearlyEvents> {
+        self.0.get(&year).copied()
+    }
+
+    pub fn next_event(&self, date: chrono::DateTime<chrono::Utc>) -> Option<Event> {
+        let year_events = self.0.get(&date.year());
+        match year_events {
+            Some(year_events) => {
+                if date <= year_events.spring_equinox {
+                    Some(Event::SpringEquinox(year_events.spring_equinox))
+                } else if date <= year_events.summer_solstice {
+                    Some(Event::SummerSolstice(year_events.summer_solstice))
+                } else if date <= year_events.autumn_equinox {
+                    Some(Event::AutumnEquinox(year_events.autumn_equinox))
+                } else if date <= year_events.winter_solstice {
+                    Some(Event::WinterSolstice(year_events.winter_solstice))
+                } else {
+                    self.0
+                        .get(&(date.year() + 1))
+                        .map(|_| Event::SpringEquinox(year_events.spring_equinox))
+                }
+            }
+            None => None,
+        }
+    }
+}
+
+impl From<Vec<Option<YearlyEvents>>> for Solstices {
+    fn from(event_list: Vec<Option<YearlyEvents>>) -> Self {
+        Solstices(event_list.iter().fold(HashMap::new(), |mut m, record| {
+            match record {
+                Some(record) => {
+                    m.insert(record.year, *record);
+                }
+                None => (),
+            }
+            m
+        }))
+    }
+}
+
+lazy_static! {
+    pub static ref EVENTS: Solstices = Solstices::from(parse_events());
+}
+
+#[cfg(test)]
+mod test {
+    use chrono::{NaiveDate, NaiveDateTime};
+
+    #[test]
+    fn it_can_parse_a_solstice_time() {
+        let p = "2001 Mar 20 13:31".to_owned();
+        let parsed_date = NaiveDateTime::parse_from_str(&p, "%Y %b %d %H:%M")
+            .unwrap()
+            .and_utc();
+        assert_eq!(
+            parsed_date,
+            NaiveDate::from_ymd_opt(2001, 03, 20)
+                .unwrap()
+                .and_hms_opt(13, 31, 0)
+                .unwrap()
+                .and_utc()
+        );
+    }
+}

dashboard/src/soluna_client.rs

@@ -0,0 +1,154 @@
+// 41.78, -71.41
+// https://api.solunar.org/solunar/41.78,-71.41,20211029,-4
+
+use chrono::{DateTime, Duration, Local, NaiveTime, Offset, TimeZone, Timelike, Utc};
+use geo_types::{Latitude, Longitude};
+use memorycache::MemoryCache;
+use serde::Deserialize;
+
+const ENDPOINT: &str = "https://api.solunar.org/solunar";
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct SunMoon {
+    pub sunrise: NaiveTime,
+    pub sunset: NaiveTime,
+    pub moonrise: Option<NaiveTime>,
+    pub moonset: Option<NaiveTime>,
+    pub moon_phase: LunarPhase,
+}
+
+impl SunMoon {
+    fn from_js(val: SunMoonJs) -> Self {
+        fn parse_time(val: String) -> Option<NaiveTime> {
+            NaiveTime::parse_from_str(&val, "%H:%M").ok()
+        }
+
+        let sunrise = parse_time(val.sunrise).unwrap();
+        let sunset = parse_time(val.sunset).unwrap();
+        let moonrise = val.moonrise.and_then(parse_time);
+        let moonset = val.moonset.and_then(parse_time);
+
+        Self {
+            sunrise,
+            sunset,
+            moonrise,
+            moonset,
+            moon_phase: val.moon_phase,
+        }
+    }
+}
+
+#[derive(Clone, Debug, Deserialize)]
+pub(crate) struct SunMoonJs {
+    #[serde(alias = "sunRise")]
+    sunrise: String,
+    #[serde(alias = "sunSet")]
+    sunset: String,
+    #[serde(alias = "moonRise")]
+    moonrise: Option<String>,
+    #[serde(alias = "moonSet")]
+    moonset: Option<String>,
+    #[serde(alias = "moonPhase")]
+    moon_phase: LunarPhase,
+}
+
+#[derive(Clone, Debug, Deserialize, PartialEq)]
+pub enum LunarPhase {
+    #[serde(alias = "New Moon")]
+    NewMoon,
+    #[serde(alias = "Waxing Crescent")]
+    WaxingCrescent,
+    #[serde(alias = "First Quarter")]
+    FirstQuarter,
+    #[serde(alias = "Waxing Gibbous")]
+    WaxingGibbous,
+    #[serde(alias = "Full Moon")]
+    FullMoon,
+    #[serde(alias = "Waning Gibbous")]
+    WaningGibbous,
+    #[serde(alias = "Last Quarter")]
+    LastQuarter,
+    #[serde(alias = "Waning Crescent")]
+    WaningCrescent,
+}
+
+pub struct SolunaClient {
+    client: reqwest::Client,
+    memory_cache: MemoryCache<SunMoonJs>,
+}
+
+impl SolunaClient {
+    pub fn new() -> Self {
+        Self {
+            client: reqwest::Client::new(),
+            memory_cache: MemoryCache::default(),
+        }
+    }
+
+    pub async fn request<Tz: TimeZone>(
+        &self,
+        latitude: Latitude,
+        longitude: Longitude,
+        day: DateTime<Tz>,
+    ) -> SunMoon {
+        let date = day.date_naive().format("%Y%m%d");
+        let url = format!(
+            "{}/{},{},{},{}",
+            ENDPOINT,
+            latitude,
+            longitude,
+            date,
+            day.offset().fix().local_minus_utc() / 3600
+        );
+        let js = self
+            .memory_cache
+            .find(&url, async {
+                let response = self.client.get(&url).send().await.unwrap();
+                let expiration = response
+                    .headers()
+                    .get(reqwest::header::EXPIRES)
+                    .and_then(|header| header.to_str().ok())
+                    .and_then(|expiration| DateTime::parse_from_rfc2822(expiration).ok())
+                    .map(DateTime::<Utc>::from)
+                    .unwrap_or(
+                        Local::now()
+                            .with_hour(0)
+                            .and_then(|dt| dt.with_minute(0))
+                            .and_then(|dt| dt.with_second(0))
+                            .and_then(|dt| dt.with_nanosecond(0))
+                            .map(|dt| dt.with_timezone(&Utc))
+                            .unwrap()
+                            + Duration::days(1),
+                    );
+                let soluna: SunMoonJs = response.json().await.unwrap();
+                (expiration, soluna)
+            })
+            .await;
+
+        SunMoon::from_js(js)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use serde_json;
+
+    const EXAMPLE: &str = "{\"sunRise\":\"7:15\",\"sunTransit\":\"12:30\",\"sunSet\":\"17:45\",\"moonRise\":null,\"moonTransit\":\"7:30\",\"moonUnder\":\"19:54\",\"moonSet\":\"15:02\",\"moonPhase\":\"Waning Crescent\",\"moonIllumination\":0.35889454647387764,\"sunRiseDec\":7.25,\"sunTransitDec\":12.5,\"sunSetDec\":17.75,\"moonRiseDec\":null,\"moonSetDec\":15.033333333333333,\"moonTransitDec\":7.5,\"moonUnderDec\":19.9,\"minor1Start\":null,\"minor1Stop\":null,\"minor2StartDec\":14.533333333333333,\"minor2Start\":\"14:32\",\"minor2StopDec\":15.533333333333333,\"minor2Stop\":\"15:32\",\"major1StartDec\":6.5,\"major1Start\":\"06:30\",\"major1StopDec\":8.5,\"major1Stop\":\"08:30\",\"major2StartDec\":18.9,\"major2Start\":\"18:54\",\"major2StopDec\":20.9,\"major2Stop\":\"20:54\",\"dayRating\":1,\"hourlyRating\":{\"0\":20,\"1\":20,\"2\":0,\"3\":0,\"4\":0,\"5\":0,\"6\":20,\"7\":40,\"8\":40,\"9\":20,\"10\":0,\"11\":0,\"12\":0,\"13\":0,\"14\":0,\"15\":20,\"16\":20,\"17\":20,\"18\":40,\"19\":20,\"20\":20,\"21\":20,\"22\":0,\"23\":0}}";
+
+    #[test]
+    fn it_parses_a_response() {
+        let sun_moon_js: SunMoonJs = serde_json::from_str(EXAMPLE).unwrap();
+        let sun_moon = SunMoon::from_js(sun_moon_js);
+        assert_eq!(
+            sun_moon,
+            SunMoon {
+                sunrise: NaiveTime::from_hms_opt(7, 15, 0).unwrap(),
+                sunset: NaiveTime::from_hms_opt(17, 45, 0).unwrap(),
+                moonrise: None,
+                moonset: Some(NaiveTime::from_hms_opt(15, 02, 0).unwrap()),
+                moon_phase: LunarPhase::WaningCrescent,
+            }
+        );
+    }
+}

dashboard/src/types.rs

@@ -0,0 +1,13 @@
+use crate::{
+    solstices::{Event, YearlyEvents},
+    soluna_client::SunMoon,
+};
+use chrono::NaiveDate;
+
+#[derive(Clone, Debug)]
+pub struct State {
+    pub date: NaiveDate,
+    pub next_event: Event,
+    pub events: YearlyEvents,
+    pub transit: Option<SunMoon>,
+}

emseries/Cargo.lock

@@ -36,9 +36,9 @@ dependencies = [
 
 [[package]]
 name = "chrono-tz"
-version = "0.6.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58549f1842da3080ce63002102d5bc954c7bc843d4f47818e642abdc36253552"
+checksum = "cf9cc2b23599e6d7479755f3594285efb3f74a1bdca7a7374948bc831e23a552"
 dependencies = [
  "chrono",
  "chrono-tz-build",
@@ -48,9 +48,9 @@ dependencies = [
 
 [[package]]
 name = "chrono-tz-build"
-version = "0.0.2"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db058d493fb2f65f41861bfed7e3fe6335264a9f0f92710cab5bdf01fef09069"
+checksum = "d9998fb9f7e9b2111641485bf8beb32f92945f97f92a3d061f744cfef335f751"
 dependencies = [
  "parse-zoneinfo",
  "phf",
@@ -71,7 +71,7 @@ dependencies = [
 
 [[package]]
 name = "emseries"
-version = "0.5.1"
+version = "0.6.0"
 dependencies = [
  "chrono",
  "chrono-tz",
@@ -82,7 +82,6 @@ dependencies = [
  "tempfile",
  "thiserror",
  "uuid",
- "yaml-rust",
 ]
 
 [[package]]
@@ -135,12 +134,6 @@ version = "0.2.124"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "21a41fed9d98f27ab1c6d161da622a4fa35e8a54a8adc24bbf3ddd0ef70b0e50"
 
-[[package]]
-name = "linked-hash-map"
-version = "0.5.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
-
 [[package]]
 name = "num-integer"
 version = "0.1.44"
@@ -171,18 +164,18 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.10.1"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fabbf1ead8a5bcbc20f5f8b939ee3f5b0f6f281b6ad3468b84656b658b455259"
+checksum = "928c6535de93548188ef63bb7c4036bd415cd8f36ad25af44b9789b2ee72a48c"
 dependencies = [
  "phf_shared",
 ]
 
 [[package]]
 name = "phf_codegen"
-version = "0.10.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fb1c3a8bc4dd4e5cfce29b44ffc14bedd2ee294559a294e2a4d4c9e9a6a13cd"
+checksum = "a56ac890c5e3ca598bbdeaa99964edb5b0258a583a9eb6ef4e89fc85d9224770"
 dependencies = [
  "phf_generator",
  "phf_shared",
@@ -190,9 +183,9 @@ dependencies = [
 
 [[package]]
 name = "phf_generator"
-version = "0.10.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d5285893bb5eb82e6aaf5d59ee909a06a16737a8970984dd7746ba9283498d6"
+checksum = "b1181c94580fa345f50f19d738aaa39c0ed30a600d95cb2d3e23f94266f14fbf"
 dependencies = [
  "phf_shared",
  "rand",
@@ -200,20 +193,13 @@ dependencies = [
 
 [[package]]
 name = "phf_shared"
-version = "0.10.0"
+version = "0.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6796ad771acdc0123d2a88dc428b5e38ef24456743ddb1744ed628f9815c096"
+checksum = "e1fb5f6f826b772a8d4c0394209441e7d37cbbb967ae9c7e0e8134365c9ee676"
 dependencies = [
  "siphasher",
- "uncased",
 ]
 
-[[package]]
-name = "ppv-lite86"
-version = "0.2.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.37"
@@ -238,18 +224,6 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
- "libc",
- "rand_chacha",
- "rand_core",
-]
-
-[[package]]
-name = "rand_chacha"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
-dependencies = [
- "ppv-lite86",
  "rand_core",
 ]
 
@@ -258,9 +232,6 @@ name = "rand_core"
 version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7"
-dependencies = [
- "getrandom",
-]
 
 [[package]]
 name = "redox_syscall"
@@ -392,18 +363,9 @@ dependencies = [
 
 [[package]]
 name = "typenum"
-version = "1.15.0"
+version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
+checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
-
-[[package]]
-name = "uncased"
-version = "0.9.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5baeed7327e25054889b9bd4f975f32e5f4c5d434042d59ab6cd4142c0a76ed0"
-dependencies = [
- "version_check",
-]
 
 [[package]]
 name = "unicode-xid"
@@ -421,12 +383,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "version_check"
-version = "0.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
-
 [[package]]
 name = "wasi"
 version = "0.10.2+wasi-snapshot-preview1"
@@ -454,12 +410,3 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
-
-[[package]]
-name = "yaml-rust"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
-dependencies = [
- "linked-hash-map",
-]

emseries/Cargo.toml

@@ -1,10 +1,10 @@
 [package]
 name = "emseries"
-version = "0.5.1"
+version = "0.6.0"
 authors = ["Savanni D'Gerinel <savanni@luminescent-dreams.com>"]
 description = "an Embedded Time Series database"
 license = "GPL-3.0-only"
-license-file = "../COPYING"
+# license-file = "../COPYING"
 documentation = "https://docs.rs/emseries"
 homepage = "https://github.com/luminescent-dreams/emseries"
 repository = "https://github.com/luminescent-dreams/emseries"
@@ -18,14 +18,13 @@ include = [
 
 [dependencies]
 chrono = { version = "0.4", features = ["serde"] }
-chrono-tz = { version = "0.6", features = ["serde"] }
+chrono-tz = { version = "0.8", features = ["serde"] }
-dimensioned = { version = "0.7", features = ["serde"] }
 serde = "1"
 serde_derive = "1"
 serde_json = "1.0"
 thiserror = "1.0"
 uuid = { version = "0.8", features = ["v4", "serde"] }
-yaml-rust = "0.4"
 
 [dev-dependencies]
 tempfile = "3.1"
+dimensioned = { version = "0.7", features = ["serde"] }

emseries/Makefile

@@ -1,9 +0,0 @@
-
-dev:
-	cargo watch -x build
-
-test:
-	cargo watch -x test
-
-test-once:
-	cargo test

emseries/fixtures/weight.json

@@ -1,2 +0,0 @@
-{"data":{"weight":77.79109,"date":"2003-11-10T06:00:00.000000000000Z"},"id":"3330c5b0-783f-4919-b2c4-8169c38f65ff"}
-{"data":{"weight":77.56429,"date":"2003-11-11T06:00:00.000000000000Z"},"id":"54c10502-030e-43d2-9ca6-df2f9a5a5ddf"}

emseries/src/criteria.rs

@@ -10,8 +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 date_time_tz::DateTimeTz;
+use types::{Recordable, Timestamp};
-use types::Recordable;
 
 /// This trait is used for constructing queries for searching the database.
 pub trait Criteria {
@@ -45,7 +44,7 @@ pub struct Or<A: Criteria, B: Criteria> {
 /// Specify the starting time for a search. This consists of a UTC timestamp and a specifier as to
 /// whether the exact time is included in the search criteria.
 pub struct StartTime {
-    pub time: DateTimeTz,
+    pub time: Timestamp,
     pub incl: bool,
 }
 
@@ -62,7 +61,7 @@ impl Criteria for StartTime {
 /// Specify the ending time for a search. This consists of a UTC timestamp and a specifier as to
 /// whether the exact time is included in the search criteria.
 pub struct EndTime {
-    pub time: DateTimeTz,
+    pub time: Timestamp,
     pub incl: bool,
 }
 
@@ -89,7 +88,7 @@ impl Criteria for Tags {
 }
 
 /// Specify a criteria that searches for records matching an exact time.
-pub fn exact_time(time: DateTimeTz) -> And<StartTime, EndTime> {
+pub fn exact_time(time: Timestamp) -> And<StartTime, EndTime> {
     And {
         lside: StartTime {
             time: time.clone(),
@@ -101,9 +100,9 @@ pub fn exact_time(time: DateTimeTz) -> And<StartTime, EndTime> {
 
 /// Specify a criteria that searches for all records within a time range.
 pub fn time_range(
-    start: DateTimeTz,
+    start: Timestamp,
     start_incl: bool,
-    end: DateTimeTz,
+    end: Timestamp,
     end_incl: bool,
 ) -> And<StartTime, EndTime> {
     And {

emseries/src/date_time_tz.rs

@@ -1,166 +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;
-
-/// 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 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))
-    }
-
-    pub fn to_string(&self) -> String {
-        if self.0.timezone() == UTC {
-            self.0.to_rfc3339_opts(SecondsFormat::Secs, true)
-        } else {
-            format!(
-                "{} {}",
-                self.0
-                    .with_timezone(&chrono_tz::Etc::UTC)
-                    .to_rfc3339_opts(SecondsFormat::Secs, true,),
-                self.0.timezone().name()
-            )
-        }
-    }
-
-    pub fn from_str(s: &str) -> Result<DateTimeTz, chrono::ParseError> {
-        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)))
-        }
-    }
-}
-
-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(format!(
-            "string is not a parsable datetime representation"
-        ))))
-    }
-}
-
-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 chrono::TimeZone;
-    use chrono_tz::America::Phoenix;
-    use chrono_tz::Etc::UTC;
-    use chrono_tz::US::{Arizona, Central};
-    use date_time_tz::DateTimeTz;
-
-    #[test]
-    fn it_creates_timestamp_with_z() {
-        let t = DateTimeTz(UTC.ymd(2019, 5, 15).and_hms(12, 0, 0));
-        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.ymd(2019, 5, 15).and_hms(12, 0, 0)));
-    }
-
-    #[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.ymd(2019, 5, 15).and_hms(18, 0, 0)));
-    }
-
-    #[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.ymd(2019, 6, 15).and_hms(19, 0, 0)));
-        assert_eq!(t, DateTimeTz(Arizona.ymd(2019, 6, 15).and_hms(12, 0, 0)));
-        assert_eq!(t, DateTimeTz(Central.ymd(2019, 6, 15).and_hms(14, 0, 0)));
-        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.ymd(2019, 6, 15).and_hms(12, 0, 0)));
-    }
-}

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, 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>
@@ -42,12 +80,12 @@ 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)
             .create(true)
-            .open(&path)
+            .open(path)
             .map_err(EmseriesReadError::IOError)?;
 
         let records = Series::load_file(&f)?;
@@ -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::new();
+        let id = RecordId::default();
-        self.update(uuid.clone(), entry).and_then(|_| Ok(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<'s>(&'s self) -> impl Iterator<Item = (&'s UniqueId, &'s T)> + 's {
+    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).map(|v| v.clone())
+        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 +10,8 @@ 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 date_time_tz::DateTimeTz;
+use chrono::{DateTime, FixedOffset, NaiveDate};
-use serde::de::DeserializeOwned;
+use std::{cmp::Ordering, fmt, io, str};
-use serde::ser::Serialize;
-use std::{fmt, io, str};
 use thiserror::Error;
 use uuid::Uuid;
 
@@ -27,6 +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),
@@ -43,11 +44,74 @@ pub enum EmseriesWriteError {
     JSONWriteError(serde_json::error::Error),
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+/// 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(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> {
+        DateTime::parse_from_rfc3339(line)
+            .map(Timestamp::DateTime)
+            .or(NaiveDate::from_str(line).map(Timestamp::Date))
+    }
+}
+
+impl PartialOrd for Timestamp {
+    fn partial_cmp(&self, other: &Timestamp) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+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.date_naive().cmp(dt2),
+            (Timestamp::Date(dt1), Timestamp::DateTime(dt2)) => dt1.cmp(&dt2.date_naive()),
+            (Timestamp::Date(dt1), Timestamp::Date(dt2)) => dt1.cmp(dt2),
+        }
+    }
+}
+
 /// 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 {
     /// The timestamp for the record.
-    fn timestamp(&self) -> DateTimeTz;
+    fn timestamp(&self) -> Timestamp;
 
     /// A list of string tags that can be used for indexing. This list defined per-type.
     fn tags(&self) -> Vec<String>;
@@ -56,78 +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 UniqueId {
+impl Default for RecordId {
-    /// Create a new V4 UUID (this is the most common type in use these days).
+    fn default() -> Self {
-    pub fn new() -> UniqueId {
+        Self(Uuid::new_v4())
-        let id = Uuid::new_v4();
-        UniqueId(id)
     }
 }
 
-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(|err| EmseriesReadError::UUIDParseError(err))
+            .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().to_string())
+        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(|err| EmseriesReadError::JSONParseError(err))
+        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::{Record, Recordable};
+    use super::*;
     use chrono::TimeZone;
     use chrono_tz::Etc::UTC;
-    use chrono_tz::US::Central;
-    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: DateTimeTz,
+        pub date: NaiveDate,
         pub weight: Weight,
     }
 
     impl Recordable for WeightRecord {
-        fn timestamp(&self) -> DateTimeTz {
+        fn timestamp(&self) -> Timestamp {
-            self.date.clone()
+            Timestamp::Date(self.date)
         }
 
         fn tags(&self) -> Vec<String> {
@@ -135,10 +209,31 @@ mod test {
         }
     }
 
-    const WEIGHT_ENTRY: &str = "{\"data\":{\"weight\":77.79109,\"date\":\"2003-11-10T06:00:00.000000000000Z\"},\"id\":\"3330c5b0-783f-4919-b2c4-8169c38f65ff\"}";
+    #[test]
+    fn timestamp_parses_utc_time() {
+        assert_eq!(
+            "2003-11-10T06:00:00Z".parse::<Timestamp>().unwrap(),
+            Timestamp::DateTime(
+                UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0)
+                    .unwrap()
+                    .with_timezone(&FixedOffset::east_opt(0).unwrap())
+            ),
+        );
+    }
 
     #[test]
-    pub fn legacy_deserialization() {
+    fn timestamp_parses_date() {
+        assert_eq!(
+            "2023-11-10".parse::<Timestamp>().unwrap(),
+            Timestamp::Date(NaiveDate::from_ymd_opt(2023, 11, 10).unwrap())
+        );
+    }
+
+    /*
+    #[ignore]
+    fn v_alpha_serialization() {
+        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()
             .expect("should successfully parse the record");
@@ -148,31 +243,65 @@ mod test {
         );
         assert_eq!(
             rec.data,
-            Some(WeightRecord {
+            WeightRecord {
-                date: DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0)),
+                date: NaiveDate::from_ymd_opt(2003, 11, 10).unwrap(),
                 weight: Weight(77.79109 * KG),
-            })
+            }
         );
     }
+    */
 
     #[test]
-    pub fn serialization_output() {
+    fn serialization_output() {
         let rec = WeightRecord {
-            date: DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0)),
+            date: NaiveDate::from_ymd_opt(2003, 11, 10).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: DateTimeTz(Central.ymd(2003, 11, 10).and_hms(0, 0, 0)),
+            date: NaiveDate::from_ymd_opt(2003, 11, 10).unwrap(),
             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(
+            UTC.with_ymd_and_hms(2003, 11, 10, 6, 0, 0)
+                .unwrap()
+                .with_timezone(&FixedOffset::east_opt(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 = Timestamp::Date(NaiveDate::from_ymd_opt(2003, 11, 10).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(
+            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

@@ -20,9 +20,9 @@ extern crate emseries;
 
 #[cfg(test)]
 mod test {
-    use chrono::prelude::*;
+    use chrono::{prelude::*};
     use chrono_tz::Etc::UTC;
-    use dimensioned::si::{Kilogram, Meter, Second, KG, M, S};
+    use dimensioned::si::{Kilogram, Meter, Second, M, S};
 
     use emseries::*;
 
@@ -34,15 +34,15 @@ mod test {
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     struct BikeTrip {
-        datetime: DateTimeTz,
+        datetime: DateTime<FixedOffset>,
         distance: Distance,
         duration: Duration,
         comments: String,
     }
 
     impl Recordable for BikeTrip {
-        fn timestamp(&self) -> DateTimeTz {
+        fn timestamp(&self) -> Timestamp {
-            self.datetime.clone()
+            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.ymd(2011, 10, 29).and_hms(0, 0, 0)),
+                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.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                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.ymd(2011, 11, 02).and_hms(0, 0, 0)),
+                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.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                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.ymd(2011, 11, 05).and_hms(0, 0, 0)),
+                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.ymd(2011, 10, 29).and_hms(0, 0, 0))
+                        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(DateTimeTz(
+                .search(exact_time(Timestamp::DateTime(
-                    UTC.ymd(2011, 10, 31).and_hms(0, 0, 0),
+                    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.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                    Timestamp::DateTime(
+                        UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                            .unwrap()
+                            .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                    ),
                     true,
-                    DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                    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.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
-                        DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                        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.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
-                        DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                        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.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                        Timestamp::DateTime(
+                            UTC.with_ymd_and_hms(2011, 10, 31, 0, 0, 0)
+                                .unwrap()
+                                .with_timezone(&FixedOffset::east_opt(0).unwrap()),
+                        ),
                         true,
-                        DateTimeTz(UTC.ymd(2011, 11, 05).and_hms(0, 0, 0)),
+                        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.ymd(2011, 11, 02).and_hms(0, 0, 0))
+                        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(DateTimeTz(
+                    .search(exact_time(Timestamp::DateTime(
-                        UTC.ymd(2011, 11, 02).and_hms(0, 0, 0),
+                        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.ymd(2011, 11, 02).and_hms(0, 0, 0))
+                    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!"));
             }
         })
     }
@@ -356,22 +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);
             }
         })
@@ -382,13 +437,13 @@ mod test {
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     pub struct WeightRecord {
-        pub date: DateTimeTz,
+        pub date: chrono::NaiveDate,
         pub weight: Weight,
     }
 
     impl Recordable for WeightRecord {
-        fn timestamp(&self) -> DateTimeTz {
+        fn timestamp(&self) -> Timestamp {
-            self.date.clone()
+            Timestamp::Date(self.date)
         }
 
         fn tags(&self) -> Vec<String> {
@@ -396,6 +451,7 @@ mod test {
         }
     }
 
+    /*
     #[test]
     pub fn legacy_file_load() {
         let ts: Series<WeightRecord> =
@@ -410,4 +466,5 @@ mod test {
             Some(rec) => assert_eq!(rec.weight, Weight(77.79109 * KG)),
         }
     }
+    */
 }

file-service/.gitignore

@@ -0,0 +1 @@
+fixtures

file-service/.ignore

@@ -0,0 +1,2 @@
+fixtures
+var

file-service/Cargo.toml

@@ -0,0 +1,47 @@
+[package]
+name = "file-service"
+version = "0.2.0"
+authors = ["savanni@luminescent-dreams.com"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+name = "file_service"
+path = "src/lib.rs"
+
+[[bin]]
+name = "file-service"
+path = "src/main.rs"
+
+[target.auth-cli.dependencies]
+
+[dependencies]
+authdb              = { path = "../authdb/" }
+base64ct            = { version = "1", features = [ "alloc" ] }
+build_html          = { version = "2" }
+bytes               = { version = "1" }
+chrono              = { version = "0.4", features = ["serde"] }
+clap                = { version = "4", features = [ "derive" ] }
+cookie              = { version = "0.17" }
+futures-util        = { version = "0.3" }
+hex-string          = "0.1.0"
+http                = { version = "0.2" }
+image               = "0.23.5"
+logger              = "*"
+log                 = { version = "0.4" }
+mime                = "0.3.16"
+mime_guess          = "2.0.3"
+pretty_env_logger   = { version = "0.5" }
+serde_json          = "*"
+serde               = { version = "1.0", features = ["derive"] }
+sha2                = { version = "0.10" }
+thiserror           = { version = "1" }
+tokio               = { version = "1", features = [ "full" ] }
+uuid                = { version = "0.4", features = [ "serde", "v4" ] }
+warp                = { version = "0.3" }
+
+[dev-dependencies]
+cool_asserts        = { version = "2" }
+tempdir             = { version = "0.3" }
+

file-service/authdb.json

@@ -0,0 +1 @@
+[{"jti":"ac3a46c6-3fa1-4d0a-af12-e7d3fefdc878","aud":"savanni","exp":1621351436,"iss":"savanni","iat":1589729036,"sub":"https://savanni.luminescent-dreams.com/file-service/","perms":["admin"]}]

file-service/dist.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+VERSION=`cat Cargo.toml | grep "^version =" | sed -r 's/^version = "(.+)"$/\1/'`
+
+mkdir -p dist
+cp ../target/release/file-service dist
+cp ../target/release/auth-cli dist
+strip dist/file-service
+strip dist/auth-cli
+tar -czf file-service-${VERSION}.tgz dist/
+

file-service/src/handlers.rs

@@ -0,0 +1,279 @@
+use build_html::Html;
+use bytes::Buf;
+use file_service::WriteFileError;
+use futures_util::StreamExt;
+use http::{Error, StatusCode};
+use std::collections::HashMap;
+use std::io::Read;
+use warp::{filters::multipart::FormData, http::Response, multipart::Part};
+
+use crate::{pages, App, AuthToken, FileId, FileInfo, ReadFileError, SessionToken};
+
+const CSS: &str = include_str!("../templates/style.css");
+
+pub async fn handle_index(
+    app: App,
+    token: Option<SessionToken>,
+) -> Result<Response<String>, Error> {
+    match token {
+        Some(token) => match app.validate_session(token).await {
+            Ok(_) => render_gallery_page(app).await,
+            Err(err) => render_auth_page(Some(format!("session expired: {:?}", err))),
+        },
+        None => render_auth_page(None),
+    }
+}
+
+pub async fn handle_css() -> Result<Response<String>, Error> {
+    Response::builder()
+        .header("content-type", "text/css")
+        .status(StatusCode::OK)
+        .body(CSS.to_owned())
+}
+
+pub fn render_auth_page(message: Option<String>) -> Result<Response<String>, Error> {
+    Response::builder()
+        .status(StatusCode::OK)
+        .body(pages::auth(message).to_html_string())
+}
+
+pub async fn render_gallery_page(app: App) -> Result<Response<String>, Error> {
+    match app.list_files().await {
+        Ok(ids) => {
+            let mut files = vec![];
+            for id in ids.into_iter() {
+                let file = app.get_file(&id).await;
+                files.push(file);
+            }
+            Response::builder()
+                .header("content-type", "text/html")
+                .status(StatusCode::OK)
+                .body(pages::gallery(files).to_html_string())
+        }
+        Err(_) => Response::builder()
+            .header("content-type", "text/html")
+            .status(StatusCode::INTERNAL_SERVER_ERROR)
+            .body("".to_owned()),
+    }
+}
+
+pub async fn thumbnail(
+    app: App,
+    id: String,
+    old_etags: Option<String>,
+) -> Result<Response<Vec<u8>>, Error> {
+    match app.get_file(&FileId::from(id)).await {
+        Ok(file) => serve_file(file.info.clone(), || file.thumbnail(), old_etags),
+        Err(_err) => Response::builder()
+            .status(StatusCode::NOT_FOUND)
+            .body(vec![]),
+    }
+}
+
+pub async fn file(
+    app: App,
+    id: String,
+    old_etags: Option<String>,
+) -> Result<Response<Vec<u8>>, Error> {
+    match app.get_file(&FileId::from(id)).await {
+        Ok(file) => serve_file(file.info.clone(), || file.content(), old_etags),
+        Err(_err) => Response::builder()
+            .status(StatusCode::NOT_FOUND)
+            .body(vec![]),
+    }
+}
+
+pub async fn handle_auth(
+    app: App,
+    form: HashMap<String, String>,
+) -> Result<http::Response<String>, Error> {
+    match form.get("password") {
+        Some(token) => match app.authenticate(AuthToken::from(token.clone())).await {
+            Ok(Some(session_token)) => Response::builder()
+                .header("location", "/")
+                .header(
+                    "set-cookie",
+                    format!(
+                        "session={}; Secure; HttpOnly; SameSite=Strict",
+                        *session_token
+                    ),
+                )
+                .status(StatusCode::SEE_OTHER)
+                .body("".to_owned()),
+            Ok(None) => render_auth_page(Some("no user found".to_owned())),
+            Err(_) => render_auth_page(Some("invalid auth token".to_owned())),
+        },
+        None => render_auth_page(Some("no token available".to_owned())),
+    }
+}
+
+pub async fn handle_upload(
+    app: App,
+    token: SessionToken,
+    form: FormData,
+) -> Result<http::Response<String>, Error> {
+    match app.validate_session(token).await {
+        Ok(Some(_)) => match process_file_upload(app, form).await {
+            Ok(_) => Response::builder()
+                .header("location", "/")
+                .status(StatusCode::SEE_OTHER)
+                .body("".to_owned()),
+            Err(UploadError::FilenameMissing) => Response::builder()
+                .status(StatusCode::BAD_REQUEST)
+                .body("filename is required for all files".to_owned()),
+            Err(UploadError::WriteFileError(err)) => Response::builder()
+                .status(StatusCode::INTERNAL_SERVER_ERROR)
+                .body(format!("could not write to the file system: {:?}", err)),
+            Err(UploadError::WarpError(err)) => Response::builder()
+                .status(StatusCode::INTERNAL_SERVER_ERROR)
+                .body(format!("error with the app framework: {:?}", err)),
+        },
+        _ => Response::builder()
+            .status(StatusCode::UNAUTHORIZED)
+            .body("".to_owned()),
+    }
+}
+
+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,
+    old_etags: Option<String>,
+) -> http::Result<http::Response<Vec<u8>>>
+where
+    F: FnOnce() -> Result<Vec<u8>, ReadFileError>,
+{
+    match old_etags {
+        Some(old_etags) if old_etags != info.hash => Response::builder()
+            .header("content-type", info.file_type)
+            .status(StatusCode::NOT_MODIFIED)
+            .body(vec![]),
+        _ => match file() {
+            Ok(content) => Response::builder()
+                .header("content-type", info.file_type)
+                .header("etag", info.hash)
+                .status(StatusCode::OK)
+                .body(content),
+            Err(_) => Response::builder()
+                .status(StatusCode::INTERNAL_SERVER_ERROR)
+                .body(vec![]),
+        },
+    }
+}
+
+async fn collect_multipart(
+    mut stream: warp::filters::multipart::FormData,
+) -> Result<Vec<(Option<String>, Option<String>, Vec<u8>)>, warp::Error> {
+    let mut content: Vec<(Option<String>, Option<String>, Vec<u8>)> = Vec::new();
+
+    while let Some(part) = stream.next().await {
+        match part {
+            Ok(part) => content.push(collect_content(part).await.unwrap()),
+            Err(err) => return Err(err),
+        }
+    }
+
+    Ok(content)
+}
+
+async fn collect_content(
+    mut part: Part,
+) -> Result<(Option<String>, Option<String>, Vec<u8>), String> {
+    let mut content: Vec<u8> = Vec::new();
+
+    while let Some(Ok(data)) = part.data().await {
+        let mut reader = data.reader();
+        reader.read_to_end(&mut content).unwrap();
+    }
+
+    Ok((
+        part.content_type().map(|s| s.to_owned()),
+        part.filename().map(|s| s.to_owned()),
+        content,
+    ))
+}
+
+/*
+async fn handle_upload(
+    form: warp::filters::multipart::FormData,
+    app: App,
+) -> warp::http::Result<warp::http::Response<String>> {
+    let files = collect_multipart(form).await;
+    match files {
+        Ok(files) => {
+            for (_, filename, content) in files {
+                match filename {
+                    Some(filename) => {
+                        app.add_file(filename, content).unwrap();
+                    }
+                    None => {
+                        return warp::http::Response::builder()
+                            .status(StatusCode::BAD_REQUEST)
+                            .body("".to_owned())
+                    }
+                }
+            }
+        }
+        Err(_err) => {
+            return warp::http::Response::builder()
+                .status(StatusCode::BAD_REQUEST)
+                .body("".to_owned())
+        }
+    }
+
+    // println!("file length: {:?}", files.map(|f| f.len()));
+    warp::http::Response::builder()
+        .header("location", "/")
+        .status(StatusCode::SEE_OTHER)
+        .body("".to_owned())
+}
+*/
+
+enum UploadError {
+    FilenameMissing,
+    WriteFileError(WriteFileError),
+    WarpError(warp::Error),
+}
+
+impl From<WriteFileError> for UploadError {
+    fn from(err: WriteFileError) -> Self {
+        Self::WriteFileError(err)
+    }
+}
+
+impl From<warp::Error> for UploadError {
+    fn from(err: warp::Error) -> Self {
+        Self::WarpError(err)
+    }
+}
+
+async fn process_file_upload(app: App, form: FormData) -> Result<(), UploadError> {
+    let files = collect_multipart(form).await?;
+    for (_, filename, content) in files {
+        match filename {
+            Some(filename) => {
+                app.add_file(filename, content).await?;
+            }
+            None => return Err(UploadError::FilenameMissing),
+        }
+    }
+    Ok(())
+}

file-service/src/html.rs

@@ -0,0 +1,208 @@
+use build_html::{self, Html, HtmlContainer};
+
+#[derive(Clone, Debug, Default)]
+pub struct Attributes(Vec<(String, String)>);
+
+/*
+impl FromIterator<(String, String)> for Attributes {
+    fn from_iter<T>(iter: T) -> Self
+    where
+        T: IntoIterator<Item = (String, String)>,
+    {
+        Attributes(iter.collect::<Vec<(String, String)>>())
+    }
+}
+
+impl FromIterator<(&str, &str)> for Attributes {
+    fn from_iter<T>(iter: T) -> Self
+    where
+        T: IntoIterator<Item = (&str, &str)>,
+    {
+        unimplemented!()
+    }
+}
+*/
+
+impl ToString for Attributes {
+    fn to_string(&self) -> String {
+        self.0
+            .iter()
+            .map(|(key, value)| format!("{}=\"{}\"", key, value))
+            .collect::<Vec<String>>()
+            .join(" ")
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct Form {
+    path: String,
+    method: String,
+    encoding: Option<String>,
+    elements: String,
+}
+
+impl Form {
+    pub fn new() -> Self {
+        Self {
+            path: "/".to_owned(),
+            method: "get".to_owned(),
+            encoding: None,
+            elements: "".to_owned(),
+        }
+    }
+
+    pub fn with_path(mut self, path: &str) -> Self {
+        self.path = path.to_owned();
+        self
+    }
+
+    pub fn with_method(mut self, method: &str) -> Self {
+        self.method = method.to_owned();
+        self
+    }
+
+    pub fn with_encoding(mut self, encoding: &str) -> Self {
+        self.encoding = Some(encoding.to_owned());
+        self
+    }
+}
+
+impl Html for Form {
+    fn to_html_string(&self) -> String {
+        let encoding = match self.encoding {
+            Some(ref encoding) => format!("enctype=\"{encoding}\"", encoding = encoding),
+            None => "".to_owned(),
+        };
+        format!(
+            "<form action=\"{path}\" method=\"{method}\" {encoding}>\n{elements}\n</form>\n",
+            path = self.path,
+            method = self.method,
+            encoding = encoding,
+            elements = self.elements.to_html_string(),
+        )
+    }
+}
+
+impl HtmlContainer for Form {
+    fn add_html<H: Html>(&mut self, html: H) {
+        self.elements.push_str(&html.to_html_string());
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct Input {
+    ty: String,
+    name: String,
+    id: Option<String>,
+    value: Option<String>,
+    attributes: Attributes,
+}
+
+impl Html for Input {
+    fn to_html_string(&self) -> String {
+        let id = match self.id {
+            Some(ref id) => format!("id=\"{}\"", id),
+            None => "".to_owned(),
+        };
+        let value = match self.value {
+            Some(ref value) => format!("value=\"{}\"", value),
+            None => "".to_owned(),
+        };
+        let attrs = self.attributes.to_string();
+
+        format!(
+            "<input type=\"{ty}\" name=\"{name}\" {id} {value} {attrs} />\n",
+            ty = self.ty,
+            name = self.name,
+            id = id,
+            value = value,
+            attrs = attrs,
+        )
+    }
+}
+
+impl Input {
+    pub fn new(ty: &str, name: &str) -> Self {
+        Self {
+            ty: ty.to_owned(),
+            name: name.to_owned(),
+            id: None,
+            value: None,
+            attributes: Attributes::default(),
+        }
+    }
+
+    pub fn with_id(mut self, val: &str) -> Self {
+        self.id = Some(val.to_owned());
+        self
+    }
+
+    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
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct Button {
+    ty: Option<String>,
+    name: Option<String>,
+    label: String,
+    attributes: Attributes,
+}
+
+impl Button {
+    pub fn new(label: &str) -> Self {
+        Self {
+            ty: None,
+            name: None,
+            label: label.to_owned(),
+            attributes: Attributes::default(),
+        }
+    }
+
+    pub fn with_type(mut self, ty: &str) -> Self {
+        self.ty = Some(ty.to_owned());
+        self
+    }
+
+    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 Button {
+    fn to_html_string(&self) -> String {
+        let ty = match self.ty {
+            Some(ref ty) => format!("type={}", ty),
+            None => "".to_owned(),
+        };
+        let name = match self.name {
+            Some(ref name) => format!("name={}", name),
+            None => "".to_owned(),
+        };
+        format!(
+            "<button {ty} {name} {attrs}>{label}</button>",
+            name = name,
+            label = self.label,
+            attrs = self.attributes.to_string()
+        )
+    }
+}

file-service/src/lib.rs

@@ -0,0 +1,5 @@
+mod store;
+
+pub use store::{
+    DeleteFileError, FileHandle, FileId, FileInfo, ReadFileError, Store, WriteFileError,
+};

file-service/src/main.rs

@@ -0,0 +1,174 @@
+extern crate log;
+
+use cookie::Cookie;
+use handlers::{file, handle_auth, handle_css, handle_delete, handle_upload, thumbnail};
+use std::{
+    collections::{HashMap, HashSet},
+    convert::Infallible,
+    net::{IpAddr, Ipv4Addr, SocketAddr},
+    path::PathBuf,
+    sync::Arc,
+};
+use tokio::sync::RwLock;
+use warp::{Filter, Rejection};
+
+mod handlers;
+mod html;
+mod pages;
+
+const MAX_UPLOAD: u64 = 15 * 1024 * 1024;
+
+use authdb::{AuthDB, AuthError, AuthToken, SessionToken, Username};
+
+use file_service::{
+    DeleteFileError, FileHandle, FileId, FileInfo, ReadFileError, Store, WriteFileError,
+};
+pub use handlers::handle_index;
+
+#[derive(Clone)]
+pub struct App {
+    authdb: Arc<RwLock<AuthDB>>,
+    store: Arc<RwLock<Store>>,
+}
+
+impl App {
+    pub fn new(authdb: AuthDB, store: Store) -> Self {
+        Self {
+            authdb: Arc::new(RwLock::new(authdb)),
+            store: Arc::new(RwLock::new(store)),
+        }
+    }
+
+    pub async fn authenticate(&self, token: AuthToken) -> Result<Option<SessionToken>, AuthError> {
+        self.authdb.read().await.authenticate(token).await
+    }
+
+    pub async fn validate_session(
+        &self,
+        token: SessionToken,
+    ) -> Result<Option<Username>, AuthError> {
+        self.authdb.read().await.validate_session(token).await
+    }
+
+    pub async fn list_files(&self) -> Result<HashSet<FileId>, ReadFileError> {
+        self.store.read().await.list_files()
+    }
+
+    pub async fn get_file(&self, id: &FileId) -> Result<FileHandle, ReadFileError> {
+        self.store.read().await.get_file(id)
+    }
+
+    pub async fn add_file(
+        &self,
+        filename: String,
+        content: Vec<u8>,
+    ) -> 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 {
+    warp::any().map(move || app.clone())
+}
+
+fn parse_cookies(cookie_str: &str) -> Result<HashMap<String, String>, cookie::ParseError> {
+    Cookie::split_parse(cookie_str)
+        .map(|c| c.map(|c| (c.name().to_owned(), c.value().to_owned())))
+        .collect::<Result<HashMap<String, String>, cookie::ParseError>>()
+}
+
+fn get_session_token(cookies: HashMap<String, String>) -> Option<SessionToken> {
+    cookies.get("session").cloned().map(SessionToken::from)
+}
+
+fn maybe_with_session() -> impl Filter<Extract = (Option<SessionToken>,), Error = Rejection> + Copy
+{
+    warp::any()
+        .and(warp::header::optional::<String>("cookie"))
+        .map(|cookie_str: Option<String>| match cookie_str {
+            Some(cookie_str) => parse_cookies(&cookie_str).ok().and_then(get_session_token),
+            None => None,
+        })
+}
+
+fn with_session() -> impl Filter<Extract = (SessionToken,), Error = Rejection> + Copy {
+    warp::any()
+        .and(warp::header::<String>("cookie"))
+        .and_then(|cookie_str: String| async move {
+            match parse_cookies(&cookie_str).ok().and_then(get_session_token) {
+                Some(session_token) => Ok(session_token),
+                None => Err(warp::reject()),
+            }
+        })
+}
+
+#[tokio::main]
+pub async fn main() {
+    pretty_env_logger::init();
+
+    let authdb = AuthDB::new(PathBuf::from(&std::env::var("AUTHDB").unwrap()))
+        .await
+        .unwrap();
+    let store = Store::new(PathBuf::from(&std::env::var("FILE_SHARE_DIR").unwrap()));
+
+    let app = App::new(authdb, store);
+
+    let log = warp::log("file_service");
+    let root = warp::path!()
+        .and(warp::get())
+        .and(with_app(app.clone()))
+        .and(maybe_with_session())
+        .then(handle_index);
+
+    let styles = warp::path!("css").and(warp::get()).then(handle_css);
+
+    let auth = warp::path!("auth")
+        .and(warp::post())
+        .and(with_app(app.clone()))
+        .and(warp::filters::body::form())
+        .then(handle_auth);
+
+    let upload_via_form = warp::path!("upload")
+        .and(warp::post())
+        .and(with_app(app.clone()))
+        .and(with_session())
+        .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"))
+        .and(with_app(app.clone()))
+        .then(move |id, old_etags, app: App| thumbnail(app, id, old_etags));
+
+    let file = warp::path!(String)
+        .and(warp::get())
+        .and(warp::header::optional::<String>("if-none-match"))
+        .and(with_app(app.clone()))
+        .then(move |id, old_etags, app: App| file(app, id, old_etags));
+
+    let server = warp::serve(
+        root.or(styles)
+            .or(auth)
+            .or(upload_via_form)
+            .or(delete_via_form)
+            .or(thumbnail)
+            .or(file)
+            .with(log),
+    );
+
+    server
+        .run(SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 8002))
+        .await;
+}

file-service/src/pages.rs

@@ -0,0 +1,114 @@
+use crate::html::*;
+use build_html::{self, Container, ContainerType, Html, HtmlContainer};
+use file_service::{FileHandle, FileInfo, ReadFileError};
+
+pub fn auth(_message: Option<String>) -> build_html::HtmlPage {
+    build_html::HtmlPage::new()
+        .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_html(
+                            Input::new("password", "password")
+                                .with_id("for-token-input")
+                                .with_attributes([
+                                    ("size", "50"),
+                                    ("class", "authentication-form__input"),
+                                ]),
+                        )
+                        .with_html(
+                            Button::new("Sign In")
+                                .with_attributes([("class", "authentication-form__button")]),
+                        ),
+                ),
+        )
+}
+
+pub fn gallery(handles: Vec<Result<FileHandle, ReadFileError>>) -> build_html::HtmlPage {
+    let mut page = build_html::HtmlPage::new()
+        .with_title("Gallery")
+        .with_stylesheet("/css")
+        .with_container(
+            Container::new(ContainerType::Div)
+                .with_attributes([("class", "gallery-page")])
+                .with_header(1, "Gallery")
+                .with_html(upload_form()),
+        );
+
+    let mut gallery = Container::new(ContainerType::Div).with_attributes([("class", "gallery")]);
+    for handle in handles {
+        let container = match handle {
+            Ok(ref handle) => thumbnail(&handle.info),
+            Err(err) => Container::new(ContainerType::Div)
+                .with_attributes(vec![("class", "file")])
+                .with_paragraph(format!("{:?}", err)),
+        };
+        gallery.add_container(container);
+    }
+    page.add_container(gallery);
+    page
+}
+
+pub fn upload_form() -> Form {
+    Form::new()
+        .with_path("/upload")
+        .with_method("post")
+        .with_encoding("multipart/form-data")
+        .with_container(
+            Container::new(ContainerType::Div)
+                .with_attributes([("class", "card upload-form")])
+                .with_html(Input::new("file", "file").with_attributes([
+                    ("id", "for-selector-input"),
+                    ("placeholder", "select file"),
+                    ("class", "upload-form__selector"),
+                ]))
+                .with_html(
+                    Button::new("Upload file")
+                        .with_attributes([("class", "upload-form__button")])
+                        .with_type("submit"),
+                ),
+        )
+}
+
+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!("/{}", *info.id),
+                Container::default()
+                    .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

@@ -0,0 +1,299 @@
+use super::{fileinfo::FileInfo, FileId, ReadFileError, WriteFileError};
+use chrono::prelude::*;
+use hex_string::HexString;
+use image::imageops::FilterType;
+use sha2::{Digest, Sha256};
+use std::{
+    convert::TryFrom,
+    io::{Read, Write},
+    path::{Path, PathBuf},
+};
+use thiserror::Error;
+use uuid::Uuid;
+
+#[derive(Debug, Error)]
+pub enum PathError {
+    #[error("path cannot be derived from input")]
+    InvalidPath,
+}
+
+#[derive(Clone, Debug)]
+pub struct PathResolver {
+    base: PathBuf,
+    id: FileId,
+    extension: String,
+}
+
+impl PathResolver {
+    pub fn new(base: &Path, id: FileId, extension: String) -> Self {
+        Self {
+            base: base.to_owned(),
+            id,
+            extension,
+        }
+    }
+
+    pub fn metadata_path_by_id(base: &Path, id: FileId) -> PathBuf {
+        let mut path = base.to_path_buf();
+        path.push(PathBuf::from(id.clone()));
+        path.set_extension("json");
+        path
+    }
+
+    pub fn id(&self) -> FileId {
+        self.id.clone()
+    }
+
+    pub fn file_path(&self) -> PathBuf {
+        let mut path = self.base.clone();
+        path.push(PathBuf::from(self.id.clone()));
+        path.set_extension(self.extension.clone());
+        path
+    }
+
+    pub fn metadata_path(&self) -> PathBuf {
+        let mut path = self.base.clone();
+        path.push(PathBuf::from(self.id.clone()));
+        path.set_extension("json");
+        path
+    }
+
+    pub fn thumbnail_path(&self) -> PathBuf {
+        let mut path = self.base.clone();
+        path.push(PathBuf::from(self.id.clone()));
+        path.set_extension(format!("tn.{}", self.extension));
+        path
+    }
+}
+
+impl TryFrom<String> for PathResolver {
+    type Error = PathError;
+    fn try_from(s: String) -> Result<Self, Self::Error> {
+        PathResolver::try_from(s.as_str())
+    }
+}
+
+impl TryFrom<&str> for PathResolver {
+    type Error = PathError;
+    fn try_from(s: &str) -> Result<Self, Self::Error> {
+        PathResolver::try_from(Path::new(s))
+    }
+}
+
+impl TryFrom<PathBuf> for PathResolver {
+    type Error = PathError;
+    fn try_from(path: PathBuf) -> Result<Self, Self::Error> {
+        PathResolver::try_from(path.as_path())
+    }
+}
+
+impl TryFrom<&Path> for PathResolver {
+    type Error = PathError;
+    fn try_from(path: &Path) -> Result<Self, Self::Error> {
+        Ok(Self {
+            base: path
+                .parent()
+                .map(|s| s.to_owned())
+                .ok_or(PathError::InvalidPath)?,
+            id: path
+                .file_stem()
+                .and_then(|s| s.to_str().map(FileId::from))
+                .ok_or(PathError::InvalidPath)?,
+            extension: path
+                .extension()
+                .and_then(|s| s.to_str().map(|s| s.to_owned()))
+                .ok_or(PathError::InvalidPath)?,
+        })
+    }
+}
+
+/// One file in the database, complete with the path of the file and information about the
+/// thumbnail of the file.
+#[derive(Debug)]
+pub struct FileHandle {
+    pub id: FileId,
+    pub path: PathResolver,
+    pub info: FileInfo,
+}
+
+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 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)?;
+        let path = PathResolver {
+            base: root.clone(),
+            id: id.clone(),
+            extension: extension.clone(),
+        };
+
+        let file_type = mime_guess::from_ext(&extension)
+            .first_or_text_plain()
+            .essence_str()
+            .to_owned();
+
+        let info = FileInfo {
+            id: id.clone(),
+            name,
+            size: 0,
+            created: Utc::now(),
+            file_type,
+            hash: "".to_owned(),
+            extension,
+        };
+
+        let mut md_file = std::fs::File::create(path.metadata_path())?;
+        let _ = md_file.write(&serde_json::to_vec(&info)?)?;
+
+        Ok(Self { id, path, info })
+    }
+
+    pub fn load(id: &FileId, root: &Path) -> Result<Self, ReadFileError> {
+        let info = FileInfo::load(PathResolver::metadata_path_by_id(root, id.clone()))?;
+        let resolver = PathResolver::new(root, id.clone(), info.extension.clone());
+        Ok(Self {
+            id: info.id.clone(),
+            path: resolver,
+            info,
+        })
+    }
+
+    pub fn set_content(&mut self, content: Vec<u8>) -> Result<(), WriteFileError> {
+        let mut content_file = std::fs::File::create(self.path.file_path())?;
+        let byte_count = content_file.write(&content)?;
+        self.info.size = byte_count;
+        self.info.hash = self.hash_content(&content).as_string();
+
+        let mut md_file = std::fs::File::create(self.path.metadata_path())?;
+        let _ = md_file.write(&serde_json::to_vec(&self.info)?)?;
+
+        self.write_thumbnail()?;
+
+        Ok(())
+    }
+
+    pub fn content(&self) -> Result<Vec<u8>, ReadFileError> {
+        load_content(&self.path.file_path())
+    }
+
+    pub fn thumbnail(&self) -> Result<Vec<u8>, ReadFileError> {
+        load_content(&self.path.thumbnail_path())
+    }
+
+    fn hash_content(&self, data: &Vec<u8>) -> HexString {
+        HexString::from_bytes(&Sha256::digest(data).to_vec())
+    }
+
+    fn write_thumbnail(&self) -> Result<(), WriteFileError> {
+        let img = image::open(self.path.file_path())?;
+        let tn = img.resize(640, 640, FilterType::Nearest);
+        tn.save(self.path.thumbnail_path())?;
+        Ok(())
+    }
+
+    pub fn delete(self) {
+        let _ = std::fs::remove_file(self.path.thumbnail_path());
+        let _ = std::fs::remove_file(self.path.file_path());
+        let _ = std::fs::remove_file(self.path.metadata_path());
+    }
+}
+
+fn load_content(path: &Path) -> Result<Vec<u8>, ReadFileError> {
+    let mut buf = Vec::new();
+    let mut file = std::fs::File::open(path)?;
+    file.read_to_end(&mut buf)?;
+    Ok(buf)
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use std::{convert::TryFrom, path::PathBuf};
+    use tempdir::TempDir;
+
+    #[test]
+    fn paths() {
+        let resolver = PathResolver::try_from("path/82420255-d3c8-4d90-a582-f94be588c70c.png")
+            .expect("to have a valid path");
+
+        assert_eq!(
+            resolver.file_path(),
+            PathBuf::from("path/82420255-d3c8-4d90-a582-f94be588c70c.png")
+        );
+        assert_eq!(
+            resolver.metadata_path(),
+            PathBuf::from("path/82420255-d3c8-4d90-a582-f94be588c70c.json")
+        );
+        assert_eq!(
+            resolver.thumbnail_path(),
+            PathBuf::from("path/82420255-d3c8-4d90-a582-f94be588c70c.tn.png")
+        );
+    }
+
+    #[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();
+        FileHandle::new("rawr.png".to_owned(), PathBuf::from(tmp.path())).expect("to succeed");
+    }
+
+    #[test]
+    fn it_deletes_a_file() {
+        let tmp = TempDir::new("var").unwrap();
+        let f =
+            FileHandle::new("rawr.png".to_owned(), PathBuf::from(tmp.path())).expect("to succeed");
+        f.delete();
+    }
+
+    #[test]
+    fn it_can_return_a_thumbnail() {
+        let tmp = TempDir::new("var").unwrap();
+        let _ =
+            FileHandle::new("rawr.png".to_owned(), PathBuf::from(tmp.path())).expect("to succeed");
+        /*
+        assert_eq!(
+            f.thumbnail(),
+            Thumbnail {
+                id: String::from("rawr.png"),
+                root: PathBuf::from("var/"),
+            },
+        );
+        */
+    }
+
+    #[test]
+    fn it_can_return_a_file_stream() {
+        let tmp = TempDir::new("var").unwrap();
+        let _ =
+            FileHandle::new("rawr.png".to_owned(), PathBuf::from(tmp.path())).expect("to succeed");
+        // f.stream().expect("to succeed");
+    }
+
+    #[test]
+    fn it_raises_an_error_when_file_not_found() {
+        let tmp = TempDir::new("var").unwrap();
+        match FileHandle::load(&FileId::from("rawr"), tmp.path()) {
+            Err(ReadFileError::FileNotFound(_)) => assert!(true),
+            _ => assert!(false),
+        }
+    }
+}

file-service/src/store/fileinfo.rs

@@ -0,0 +1,76 @@
+use crate::FileId;
+
+use super::{ReadFileError, WriteFileError};
+use chrono::prelude::*;
+use serde::{Deserialize, Serialize};
+use std::{
+    io::{Read, Write},
+    path::PathBuf,
+};
+
+#[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,
+    pub hash: String,
+    pub extension: String,
+}
+
+impl FileInfo {
+    pub fn load(path: PathBuf) -> Result<Self, ReadFileError> {
+        let mut content: Vec<u8> = Vec::new();
+        let mut file =
+            std::fs::File::open(path.clone()).map_err(|_| ReadFileError::FileNotFound(path))?;
+        file.read_to_end(&mut content)?;
+        let js = serde_json::from_slice(&content)?;
+
+        Ok(js)
+    }
+
+    pub fn save(&self, path: PathBuf) -> Result<(), WriteFileError> {
+        let ser = serde_json::to_string(self).unwrap();
+        let mut file = std::fs::File::create(path)?;
+        let _ = file.write(ser.as_bytes())?;
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::store::FileId;
+    use tempdir::TempDir;
+
+    #[test]
+    fn it_saves_and_loads_metadata() {
+        let tmp = TempDir::new("var").unwrap();
+        let created = Utc::now();
+
+        let info = FileInfo {
+            id: FileId("temp-id".to_owned()),
+            name: "test-image".to_owned(),
+            size: 23777,
+            created,
+            file_type: "image/png".to_owned(),
+            hash: "abcdefg".to_owned(),
+            extension: "png".to_owned(),
+        };
+        let mut path = tmp.path().to_owned();
+        path.push(&PathBuf::from(info.id.clone()));
+        info.save(path.clone()).unwrap();
+
+        let info_ = FileInfo::load(path).unwrap();
+        assert_eq!(info_.size, 23777);
+        assert_eq!(info_.created, info.created);
+        assert_eq!(info_.file_type, "image/png");
+        assert_eq!(info_.hash, info.hash);
+    }
+}

file-service/src/store/mod.rs

@@ -0,0 +1,269 @@
+use serde::{Deserialize, Serialize};
+use std::{collections::HashSet, ops::Deref, path::PathBuf};
+use thiserror::Error;
+
+mod filehandle;
+mod fileinfo;
+
+pub use filehandle::FileHandle;
+pub use fileinfo::FileInfo;
+
+#[derive(Debug, Error)]
+pub enum WriteFileError {
+    #[error("root file path does not exist")]
+    RootNotFound,
+
+    #[error("permission denied")]
+    PermissionDenied,
+
+    #[error("invalid path")]
+    InvalidPath,
+
+    #[error("no metadata available")]
+    NoMetadata,
+
+    #[error("file could not be loaded")]
+    LoadError(#[from] ReadFileError),
+
+    #[error("image conversion failed")]
+    ImageError(#[from] image::ImageError),
+
+    #[error("JSON error")]
+    JSONError(#[from] serde_json::error::Error),
+
+    #[error("IO error")]
+    IOError(#[from] std::io::Error),
+}
+
+#[derive(Debug, Error)]
+pub enum ReadFileError {
+    #[error("file not found")]
+    FileNotFound(PathBuf),
+
+    #[error("path is not a file")]
+    NotAFile,
+
+    #[error("permission denied")]
+    PermissionDenied,
+
+    #[error("JSON error")]
+    JSONError(#[from] serde_json::error::Error),
+
+    #[error("IO error")]
+    IOError(#[from] std::io::Error),
+}
+
+#[derive(Debug, Error)]
+pub enum DeleteFileError {
+    #[error("file not found")]
+    FileNotFound(PathBuf),
+
+    #[error("metadata path is not a file")]
+    NotAFile,
+
+    #[error("cannot read metadata")]
+    PermissionDenied,
+
+    #[error("invalid metadata path")]
+    MetadataParseError(serde_json::error::Error),
+
+    #[error("IO error")]
+    IOError(#[from] std::io::Error),
+}
+
+impl From<ReadFileError> for DeleteFileError {
+    fn from(err: ReadFileError) -> Self {
+        match err {
+            ReadFileError::FileNotFound(path) => DeleteFileError::FileNotFound(path),
+            ReadFileError::NotAFile => DeleteFileError::NotAFile,
+            ReadFileError::PermissionDenied => DeleteFileError::PermissionDenied,
+            ReadFileError::JSONError(err) => DeleteFileError::MetadataParseError(err),
+            ReadFileError::IOError(err) => DeleteFileError::IOError(err),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Hash, PartialEq, Eq)]
+pub struct FileId(String);
+
+impl From<String> for FileId {
+    fn from(s: String) -> Self {
+        Self(s)
+    }
+}
+
+impl From<&str> for FileId {
+    fn from(s: &str) -> Self {
+        Self(s.to_owned())
+    }
+}
+
+impl From<FileId> for PathBuf {
+    fn from(s: FileId) -> Self {
+        Self::from(&s)
+    }
+}
+
+impl From<&FileId> for PathBuf {
+    fn from(s: &FileId) -> Self {
+        let FileId(s) = s;
+        Self::from(s)
+    }
+}
+
+impl Deref for FileId {
+    type Target = String;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+pub trait FileRoot {
+    fn root(&self) -> PathBuf;
+}
+
+pub struct Context(PathBuf);
+
+impl FileRoot for Context {
+    fn root(&self) -> PathBuf {
+        self.0.clone()
+    }
+}
+
+pub struct Store {
+    files_root: PathBuf,
+}
+
+impl Store {
+    pub fn new(files_root: PathBuf) -> Self {
+        Self { files_root }
+    }
+
+    pub fn list_files(&self) -> Result<HashSet<FileId>, ReadFileError> {
+        let paths = std::fs::read_dir(&self.files_root)?;
+        let info_files = paths
+            .into_iter()
+            .filter_map(|path| {
+                let path_ = path.unwrap().path();
+                if path_.extension().and_then(|s| s.to_str()) == Some("json") {
+                    let stem = path_.file_stem().and_then(|s| s.to_str()).unwrap();
+                    Some(FileId::from(stem))
+                } else {
+                    None
+                }
+            })
+            .collect::<HashSet<FileId>>();
+        Ok(info_files)
+    }
+
+    pub fn add_file(
+        &mut self,
+        filename: String,
+        content: Vec<u8>,
+    ) -> Result<FileHandle, WriteFileError> {
+        let mut file = FileHandle::new(filename, self.files_root.clone())?;
+        file.set_content(content)?;
+        Ok(file)
+    }
+
+    pub fn get_file(&self, id: &FileId) -> Result<FileHandle, ReadFileError> {
+        FileHandle::load(id, &self.files_root)
+    }
+
+    pub fn delete_file(&mut self, id: &FileId) -> Result<(), DeleteFileError> {
+        let handle = FileHandle::load(id, &self.files_root)?;
+        handle.delete();
+        Ok(())
+    }
+
+    pub fn get_metadata(&self, id: &FileId) -> Result<FileInfo, ReadFileError> {
+        let mut path = self.files_root.clone();
+        path.push(PathBuf::from(id));
+        path.set_extension("json");
+        FileInfo::load(path)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use cool_asserts::assert_matches;
+    use std::{collections::HashSet, io::Read};
+    use tempdir::TempDir;
+
+    fn with_file<F>(test_fn: F)
+    where
+        F: FnOnce(Store, FileId, TempDir),
+    {
+        let tmp = TempDir::new("var").unwrap();
+
+        let mut buf = Vec::new();
+        let mut file = std::fs::File::open("fixtures/rawr.png").unwrap();
+        file.read_to_end(&mut buf).unwrap();
+
+        let mut store = Store::new(PathBuf::from(tmp.path()));
+        let file_record = store.add_file("rawr.png".to_owned(), buf).unwrap();
+
+        test_fn(store, file_record.id, tmp);
+    }
+
+    #[test]
+    fn adds_files() {
+        with_file(|store, id, tmp| {
+            let file = store.get_file(&id).expect("to retrieve the file");
+
+            assert_eq!(file.content().map(|file| file.len()).unwrap(), 23777);
+
+            assert!(tmp.path().join(&(*id)).with_extension("png").exists());
+            assert!(tmp.path().join(&(*id)).with_extension("json").exists());
+            assert!(tmp.path().join(&(*id)).with_extension("tn.png").exists());
+        });
+    }
+
+    #[test]
+    fn sets_up_metadata_for_file() {
+        with_file(|store, id, tmp| {
+            assert!(tmp.path().join(&(*id)).with_extension("png").exists());
+            let info = store.get_metadata(&id).expect("to retrieve the metadata");
+
+            assert_matches!(info, FileInfo { size, file_type, hash, extension, .. } => {
+                assert_eq!(size, 23777);
+                assert_eq!(file_type, "image/png");
+                assert_eq!(hash, "b6cd35e113b95d62f53d9cbd27ccefef47d3e324aef01a2db6c0c6d3a43c89ee".to_owned());
+                assert_eq!(extension, "png".to_owned());
+            });
+        });
+    }
+
+    /*
+    #[test]
+    fn sets_up_thumbnail_for_file() {
+        with_file(|store, id| {
+            let (_, thumbnail) = store.get_thumbnail(&id).expect("to retrieve the thumbnail");
+            assert_eq!(thumbnail.content().map(|file| file.len()).unwrap(), 48869);
+        });
+    }
+    */
+
+    #[test]
+    fn deletes_associated_files() {
+        with_file(|mut store, id, tmp| {
+            store.delete_file(&id).expect("file to be deleted");
+
+            assert!(!tmp.path().join(&(*id)).with_extension("png").exists());
+            assert!(!tmp.path().join(&(*id)).with_extension("json").exists());
+            assert!(!tmp.path().join(&(*id)).with_extension("tn.png").exists());
+        });
+    }
+
+    #[test]
+    fn lists_files_in_the_db() {
+        with_file(|store, id, _| {
+            let resolvers = store.list_files().expect("file listing to succeed");
+            let ids = resolvers.into_iter().collect::<HashSet<FileId>>();
+
+            assert_eq!(ids.len(), 1);
+            assert!(ids.contains(&id));
+        });
+    }
+}

file-service/src/store/thumbnail.rs

@@ -0,0 +1,91 @@
+use super::{ReadFileError, WriteFileError};
+use image::imageops::FilterType;
+use std::{
+    fs::remove_file,
+    io::Read,
+    path::{Path, PathBuf},
+};
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Thumbnail {
+    pub path: PathBuf,
+}
+
+impl Thumbnail {
+    pub fn open(
+        origin_path: PathBuf,
+        thumbnail_path: PathBuf,
+    ) -> Result<Thumbnail, WriteFileError> {
+        let s = Thumbnail {
+            path: PathBuf::from(thumbnail_path),
+        };
+
+        if !s.path.exists() {
+            let img = image::open(&origin_path)?;
+            let tn = img.resize(640, 640, FilterType::Nearest);
+            tn.save(&s.path)?;
+        }
+
+        Ok(s)
+    }
+
+    pub fn load(path: PathBuf) -> Result<Thumbnail, ReadFileError> {
+        let s = Thumbnail { path: path.clone() };
+
+        if !s.path.exists() {
+            return Err(ReadFileError::FileNotFound(path));
+        }
+
+        Ok(s)
+    }
+
+    /*
+    pub fn from_path(path: &Path) -> Result<Thumbnail, ReadFileError> {
+        let id = path
+            .file_name()
+            .map(|s| String::from(s.to_string_lossy()))
+            .ok_or(ReadFileError::NotAnImage(PathBuf::from(path)))?;
+
+        let path = path
+            .parent()
+            .ok_or(ReadFileError::FileNotFound(PathBuf::from(path)))?;
+
+        Thumbnail::open(&id, root)
+    }
+    */
+
+    /*
+    pub fn stream(&self) -> Result<std::fs::File, ReadFileError> {
+        std::fs::File::open(self.path.clone()).map_err(|err| {
+            if err.kind() == std::io::ErrorKind::NotFound {
+                ReadFileError::FileNotFound
+            } else {
+                ReadFileError::from(err)
+            }
+        })
+    }
+    */
+
+    /*
+    pub fn delete(self) -> Result<(), WriteFileError> {
+        remove_file(self.path).map_err(WriteFileError::from)
+    }
+    */
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::store::utils::FileCleanup;
+
+    #[test]
+    fn it_creates_a_thumbnail_if_one_does_not_exist() {
+        let _ = FileCleanup(PathBuf::from("var/rawr.tn.png"));
+        let _ = Thumbnail::open(
+            PathBuf::from("fixtures/rawr.png"),
+            PathBuf::from("var/rawr.tn.png"),
+        )
+        .expect("thumbnail open must work");
+        assert!(Path::new("var/rawr.tn.png").is_file());
+    }
+}

file-service/templates/file.html

@@ -0,0 +1,15 @@
+<html>
+
+<head>
+    <title> {{title}} </title>
+    <link href="/css" rel="stylesheet" type="text/css" media="screen" />
+    <script src="/script"></script>
+</head>
+
+<body>
+
+    <a href="/file/{{id}}"><img src="/tn/{{id}}" /></a>
+
+</body>
+
+</html>

file-service/templates/index.html

@@ -0,0 +1,54 @@
+<html>
+
+<head>
+    <title> Admin list of files </title>
+    <link href="/css" rel="stylesheet" type="text/css" media="screen" />
+    <script src="/script"></script>
+</head>
+
+<body>
+    <h1> Admin list of files </h1>
+
+    <div class="uploadform">
+        <form action="/" method="post" enctype="multipart/form-data">
+            <div id="file-selector">
+                <input type="file" name="file" id="file-selector-input" />
+                <label for="file-selector-input" onclick="selectFile('file-selector')">Select a file</label>
+            </div>
+            <input type="submit" value="Upload file" />
+        </form>
+    </div>
+
+    <div class="files">
+        {{#files}}
+        <div class="file">
+            {{#error}}
+            <div>
+                <p> {{error}} </p>
+            </div>
+            {{/error}}
+
+            {{#file}}
+            <div class="thumbnail">
+                <a href="/file/{{id}}"><img src="/tn/{{id}}" /></a>
+            </div>
+            <div>
+                <ul>
+                    <li> {{date}} </li>
+                    <li> {{type_}} </li>
+                    <li> {{size}} </li>
+                </ul>
+                <div>
+                    <form action="/{{id}}" method="post">
+                        <input type="hidden" name="_method" value="delete" />
+                        <input type="submit" value="Delete" />
+                    </form>
+                </div>
+            </div>
+            {{/file}}
+        </div>
+        {{/files}}
+    </div>
+</body>
+
+</html>

file-service/templates/script.js

@@ -0,0 +1,10 @@
+const selectFile = (selectorId) => {
+    console.log("wide arrow functions work: " + selectorId);
+    const input = document.querySelector("#" + selectorId + " input[type='file']")
+    const label = document.querySelector("#" + selectorId + " label")
+    input.addEventListener("change", (e) => {
+        if (input.files.length > 0) {
+            label.innerHTML = input.files[0].name
+        }
+    })
+}

file-service/templates/style.css

@@ -0,0 +1,186 @@
+:root {
+    --main-bg-color: #e5f0fc;
+    --fg-color: #449dfc;
+
+    --space-small: 4px;
+    --space-medium: 8px;
+    --space-large: 12px;
+
+    --hover-low: 4px 4px 4px gray;
+}
+
+body {
+    font-family: 'Ariel', sans-serif;
+    background-color: var(--main-bg-color);
+}
+
+.card {
+    border: 1px solid black;
+    border-radius: 5px;
+    box-shadow: var(--hover-low);
+    margin: var(--space-large);
+    padding: var(--space-medium);
+
+}
+
+.authentication-page {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    align-items: center;
+    height: 200px;
+    margin: 8px;
+}
+
+.authentication-form {
+}
+
+.authentication-form__label {
+    margin: var(--space-small);
+}
+
+.authentication-form__input {
+    margin: var(--space-small);
+}
+
+.gallery-page {
+    display: flex;
+    flex-direction: column;
+}
+
+.upload-form {
+    display: flex;
+    flex-direction: column;
+}
+
+.upload-form__selector {
+    margin: var(--space-small);
+}
+
+.upload-form__button {
+    margin: var(--space-small);
+}
+
+.gallery {
+    display: flex;
+    flex-wrap: wrap;
+}
+
+.thumbnail {
+    width: 300px;
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+}
+
+.thumbnail__image {
+    max-width: 100%;
+    border: none;
+}
+
+.thumbnail__metadata {
+    list-style: none;
+}
+
+/*
+[type="submit"] {
+    border-radius: 1em;
+    margin: 1em;
+    padding: 1em;
+}
+
+.uploadform {
+}
+*/
+
+    /*
+[type="file"] {
+    border: 0;
+    clip: rect(0, 0, 0, 0);
+    height: 1px;
+    overflow: hidden;
+    padding: 0;
+    position: absolute !important;
+    white-space: nowrap;
+    width: 1px;
+}
+        
+[type="file"] + label {
+    background-color: rgb(0, 86, 112);
+    border-radius: 1em;
+    color: #fff;
+    cursor: pointer;
+    display: inline-block;
+    padding: 1em;
+    margin: 1em;
+    transition: background-color 0.3s;
+}
+                           
+[type="file"]:focus + label,
+[type="file"] + label:hover {
+    background-color: #67b0ff;
+}
+
+[type="file"]:focus + label {
+    outline: 1px dotted #000;
+    outline: -webkit-focus-ring-color auto 5px;
+}
+*/
+
+@media screen and (max-width: 1080px) { /* This is the screen width of a OnePlus 8 */
+    body {
+        font-size: xx-large;
+    }
+
+    .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 {
+        font-size: larger;
+    }
+
+    .upload-form__button {
+        font-size: larger;
+    }
+
+    .thumbnail {
+        width: 100%;
+    }
+
+    /*
+    [type="submit"] {
+        font-size: xx-large;
+        width: 100%;
+    }
+
+    .uploadform {
+        display: flex;
+    }
+
+    [type="file"] + label {
+        width: 100%;
+    }
+
+    .thumbnail {
+        max-width: 100%;
+        margin: 1em;
+    }
+
+    .file {
+        display: flex;
+        flex-direction: column;
+        width: 100%;
+    }
+    */
+}

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"
+