Remove some old dependencies from ifc

Wish I understood what I was thinking and what my thoughts were about with respect to the API.

.gitignore

@@ -1,2 +1,5 @@
 target
 .direnv/
+node_modules
+dist
+result

COPYING

@@ -0,0 +1,674 @@
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program 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.
+
+    This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

Makefile

@@ -1,10 +1,34 @@
 
+all: test bin
+
+test: kifu-core/test-oneshot sgf/test-oneshot
+
+bin: kifu-gtk 
+
+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
 
@@ -17,3 +41,32 @@ ifc-dev:
 ifc-test:
 	cd ifc && make test
 
+kifu-core/dev:
+	cd kifu/core && make test
+
+kifu-core/test:
+	cd kifu/core && make test
+
+kifu-core/test-oneshot:
+	cd kifu/core && make test-oneshot
+
+kifu-gtk:
+	cd kifu/gtk && make release
+
+kifu-gtk/dev:
+	cd kifu/gtk && make dev
+
+kifu-pwa:
+	cd kifu/pwa && make release
+
+kifu-pwa/dev:
+	pushd kifu/pwa && make dev
+
+kifu-pwa/server:
+	pushd kifu/pwa && make server
+
+sgf/test:
+	pushd sgf && make test
+
+sgf/test-oneshot:
+	pushd sgf && make test-oneshot

changeset/Cargo.lock

@@ -0,0 +1,48 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "changeset"
+version = "0.1.0"
+dependencies = [
+ "uuid",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.139"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+
+[[package]]
+name = "uuid"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "422ee0de9031b5b948b97a8fc04e3aa35230001a722ddd27943e0be31564ce4c"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"

changeset/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+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
+
+[dependencies]
+
+[dev-dependencies]
+uuid = { version = "*", features = [ "v4" ] }

changeset/Makefile

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

changeset/src/lib.rs

@@ -0,0 +1,204 @@
+/*
+Copyright 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/>.
+*/
+
+use std::{
+    collections::{HashMap, HashSet},
+    hash::Hash,
+};
+
+pub trait Constructable {
+    fn new() -> Self;
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub enum Change<Key: Eq + Hash, Value> {
+    DeleteRecord(Key),
+    UpdateRecord((Key, Value)),
+    NewRecord(Value),
+}
+
+#[derive(Clone, Debug)]
+pub struct Changeset<Key: Clone + Eq + Hash, Value> {
+    delete: HashSet<Key>,
+    update: HashMap<Key, Value>,
+    new: HashMap<Key, 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);
+        k.clone()
+    }
+
+    pub fn update(&mut self, k: Key, v: Value) {
+        match self.new.get_mut(&k) {
+            Some(record) => *record = v,
+            None => {
+                let _ = self.update.insert(k, v);
+            }
+        }
+    }
+
+    pub fn delete(&mut self, k: Key) {
+        let new_v = self.new.remove(&k);
+        let updated_v = self.update.remove(&k);
+        match (new_v.is_some(), updated_v.is_some()) {
+            (false, false) => {
+                let _ = self.delete.insert(k);
+            }
+            (true, false) => (),
+            (false, true) => {
+                let _ = self.delete.insert(k);
+            }
+            (true, true) => {
+                panic!("state error: key exists in the new and updtade columns at once")
+            }
+        }
+    }
+}
+
+impl<Key: Clone + Eq + Hash, Value> From<Changeset<Key, Value>> for Vec<Change<Key, Value>> {
+    fn from(changes: Changeset<Key, Value>) -> Self {
+        let Changeset {
+            delete,
+            update,
+            new,
+        } = changes;
+        delete
+            .into_iter()
+            .map(|k| Change::DeleteRecord(k))
+            .chain(
+                update
+                    .into_iter()
+                    .map(|(k, v)| Change::UpdateRecord((k, v))),
+            )
+            .chain(new.into_iter().map(|(_, v)| Change::NewRecord(v)))
+            .collect()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use uuid::Uuid;
+
+    #[derive(Clone, PartialEq, Eq, Hash)]
+    struct Id(Uuid);
+    impl Constructable for Id {
+        fn new() -> Self {
+            Id(Uuid::new_v4())
+        }
+    }
+
+    #[test]
+    fn it_generates_a_new_record() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        set.add("efgh".to_string());
+        let changes = Vec::from(set.clone());
+        assert_eq!(changes.len(), 1);
+        assert!(changes.contains(&Change::NewRecord("efgh".to_string())));
+
+        set.add("wxyz".to_string());
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 2);
+        assert!(changes.contains(&Change::NewRecord("efgh".to_string())));
+        assert!(changes.contains(&Change::NewRecord("wxyz".to_string())));
+    }
+
+    #[test]
+    fn it_generates_a_delete_record() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        let id1 = Id::new();
+        set.delete(id1.clone());
+        let changes = Vec::from(set.clone());
+        assert_eq!(changes.len(), 1);
+        assert!(changes.contains(&Change::DeleteRecord(id1.clone())));
+
+        let id2 = Id::new();
+        set.delete(id2.clone());
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 2);
+        assert!(changes.contains(&Change::DeleteRecord(id1)));
+        assert!(changes.contains(&Change::DeleteRecord(id2)));
+    }
+
+    #[test]
+    fn update_unrelated_records() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        let id1 = Id::new();
+        let id2 = Id::new();
+        set.update(id1.clone(), "abcd".to_owned());
+        set.update(id2.clone(), "efgh".to_owned());
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 2);
+        assert!(changes.contains(&Change::UpdateRecord((id1, "abcd".to_owned()))));
+        assert!(changes.contains(&Change::UpdateRecord((id2, "efgh".to_owned()))));
+    }
+
+    #[test]
+    fn delete_cancels_new() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        let key = set.add("efgh".to_string());
+        set.delete(key);
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 0);
+    }
+
+    #[test]
+    fn delete_cancels_update() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        let id = Id::new();
+        set.update(id.clone(), "efgh".to_owned());
+        set.delete(id.clone());
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 1);
+        assert!(changes.contains(&Change::DeleteRecord(id)));
+    }
+
+    #[test]
+    fn update_atop_new_is_new() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        let key = set.add("efgh".to_owned());
+        set.update(key, "wxyz".to_owned());
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 1);
+        assert!(changes.contains(&Change::NewRecord("wxyz".to_string())));
+    }
+
+    #[test]
+    fn updates_get_squashed() {
+        let mut set: Changeset<Id, String> = Changeset::new();
+        let id1 = Id::new();
+        let id2 = Id::new();
+        set.update(id1.clone(), "efgh".to_owned());
+        set.update(id2.clone(), "efgh".to_owned());
+        let changes = Vec::from(set.clone());
+        assert_eq!(changes.len(), 2);
+        assert!(changes.contains(&Change::UpdateRecord((id1.clone(), "efgh".to_string()))));
+        assert!(changes.contains(&Change::UpdateRecord((id2.clone(), "efgh".to_string()))));
+
+        set.update(id1.clone(), "wxyz".to_owned());
+        let changes = Vec::from(set);
+        assert_eq!(changes.len(), 2);
+        assert!(changes.contains(&Change::UpdateRecord((id1, "wxyz".to_string()))));
+        assert!(changes.contains(&Change::UpdateRecord((id2, "efgh".to_string()))));
+    }
+}

coordinates/Cargo.lock

@@ -0,0 +1,348 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
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+
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+dependencies = [
+ "bit-vec",
+]
+
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+]
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+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
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coordinates/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+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
+
+[dependencies]
+proptest = "1.0"
+thiserror = "1.0"
+nom = { version = "7" }

coordinates/Makefile

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

coordinates/proptest-regressions/hex.txt

@@ -0,0 +1,8 @@
+# Seeds for failure cases proptest has generated in the past. It is
+# automatically read and these particular cases re-run before any
+# novel cases are generated.
+#
+# It is recommended to check this file in to source control so that
+# everyone who runs the test benefits from these saved cases.
+cc a2c4f3291703eca342388b116ee0849a96e5f977c5af22a6b5bc805edecfeb5d # shrinks to (q, r) = (0, 0), idx = 0
+cc f80f4dd28944bad3a39512535e38ca3db1870c6daefd5317856f70bb58a505df # shrinks to (x, y) = (0, 0), idx = 0

coordinates/src/bin/default_map.rs

@@ -0,0 +1,44 @@
+/*
+Copyright 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/>.
+*/
+
+use coordinates::hex_map;
+use std::path::PathBuf;
+
+#[derive(Clone)]
+struct MapVal;
+
+impl Default for MapVal {
+    fn default() -> Self {
+        Self
+    }
+}
+
+impl From<MapVal> for String {
+    fn from(_val: MapVal) -> Self {
+        ".".to_owned()
+    }
+}
+
+fn main() {
+    let mut args = std::env::args().skip(1);
+
+    let filename = args
+        .next()
+        .map(|p| PathBuf::from(p))
+        .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);
+}

coordinates/src/hex.rs

@@ -0,0 +1,177 @@
+/*
+Copyright 2022-2023, 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/>.
+*/
+
+/// Ĉi-tiu modulo enhavas la elementojn por kub-koordinato.
+///
+/// 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
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
+pub struct AxialAddr {
+    q: i32,
+    r: i32,
+}
+
+impl AxialAddr {
+    /// Create a new axial coordinate address.
+    pub fn new(q: i32, r: i32) -> Self {
+        Self { q, r }
+    }
+
+    pub fn origin() -> AxialAddr {
+        AxialAddr { q: 0, r: 0 }
+    }
+
+    pub fn q(&self) -> i32 {
+        self.q
+    }
+
+    pub fn r(&self) -> i32 {
+        self.r
+    }
+
+    pub fn s(&self) -> i32 {
+        -self.q - self.r
+    }
+
+    /// Get a list of coordinates adjacent to this one.
+    pub fn adjacencies(&self) -> impl Iterator<Item = AxialAddr> {
+        vec![
+            AxialAddr::new(self.q + 1, self.r),
+            AxialAddr::new(self.q, self.r + 1),
+            AxialAddr::new(self.q - 1, self.r + 1),
+            AxialAddr::new(self.q - 1, self.r),
+            AxialAddr::new(self.q, self.r - 1),
+            AxialAddr::new(self.q + 1, self.r - 1),
+        ]
+        .into_iter()
+    }
+
+    /// Test whether a coordinate is adjacent to this one
+    pub fn is_adjacent(&self, dest: &AxialAddr) -> bool {
+        dest.adjacencies()
+            .collect::<Vec<AxialAddr>>()
+            .contains(&self)
+    }
+
+    /// Measure the distance to a destination
+    pub fn distance(&self, dest: &AxialAddr) -> usize {
+        (((self.q() - dest.q()).abs() + (self.r() - dest.r()).abs() + (self.s() - dest.s()).abs())
+            / 2) as usize
+    }
+
+    /// Get an iteration of all of the coordinates within the specified distance of this one.
+    pub fn addresses(&self, distance: usize) -> impl Iterator<Item = AxialAddr> {
+        let item = self.clone();
+        let mut results: HashSet<AxialAddr> = HashSet::new();
+        let mut positions: Vec<AxialAddr> = Vec::new();
+
+        positions.push(item);
+
+        while positions.len() > 0 {
+            let elem = positions.remove(0);
+            for adj in elem.adjacencies() {
+                if self.distance(&adj) <= distance && !results.contains(&adj) {
+                    positions.push(adj.clone());
+                }
+            }
+            results.insert(elem);
+        }
+
+        results.into_iter()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use proptest::prelude::*;
+    use std::collections::HashSet;
+
+    #[test]
+    fn distance_0_has_the_source() {
+        let addr = AxialAddr::origin();
+        let lst: Vec<AxialAddr> = addr.addresses(0).collect();
+        assert_eq!(lst.len(), 1);
+        assert!(lst.contains(&AxialAddr::origin()));
+    }
+
+    #[test]
+    fn distance_1_has_seven_addresses() {
+        let hexaddr = AxialAddr::origin();
+        let lst: Vec<AxialAddr> = hexaddr.addresses(1).collect();
+        assert_eq!(lst.len(), 7);
+    }
+
+    #[test]
+    fn distance_2_has_19_addresses() {
+        let hexaddr = AxialAddr::origin();
+        let lst: Vec<AxialAddr> = hexaddr.addresses(2).collect();
+        assert_eq!(lst.len(), 19);
+    }
+
+    fn address() -> (std::ops::Range<i32>, std::ops::Range<i32>) {
+        (-65536_i32..65535, -65536_i32..65535)
+    }
+
+    proptest! {
+        #[test]
+        fn produces_adjacent_coordinates((x, y) in address(), idx in 0_usize..6) {
+            let coord1 = AxialAddr::new(x, y);
+            let lst1: HashSet<AxialAddr> = coord1.adjacencies().collect();
+            assert_eq!(lst1.len(), 6);
+
+            let lst1 = lst1.into_iter().collect::<Vec<_>>();
+            let coord2 = &lst1[idx];
+            let lst2: Vec<AxialAddr> = coord2.adjacencies().collect();
+            assert!(lst2.contains(&coord1));
+        }
+
+        #[test]
+        fn tests_adjacencies((q, r) in address(), idx in 0_usize..6) {
+            let coord1 = AxialAddr::new(q, r);
+            let lst1: Vec<AxialAddr> = coord1.adjacencies().collect();
+            assert_eq!(lst1.len(), 6);
+
+            let coord2 = &lst1[idx];
+            assert!(coord2.is_adjacent(&coord1));
+            assert!(coord1.is_adjacent(&coord2));
+        }
+
+        #[test]
+        fn measures_distance((q1, r1) in address(),
+                                (q2, r2) in address()) {
+            let hexaddr_1 = AxialAddr::new(q1, r1);
+            let hexaddr_2 = AxialAddr::new(q2, r2);
+
+            let s1 = -q1 - r1;
+            let s2 = -q2 - r2;
+            let expected = (((q1 - q2).abs() + (r1 - r2).abs() + (s1 - s2).abs()) / 2) as usize;
+            assert_eq!(hexaddr_1.distance(&hexaddr_2), expected);
+            assert_eq!(hexaddr_2.distance(&hexaddr_1), expected);
+        }
+
+        #[test]
+        fn calculates_distance((q, r) in address(), distance in 0_usize..6) {
+            let hexaddr = AxialAddr::new(q, r);
+            let en_distancaj_hexaddr: Vec<AxialAddr> = hexaddr.addresses(distance).collect();
+
+            let expected_cnt = ((0..distance+1).map(|v| v * 6).fold(1, |acc, val| acc + val)) as usize;
+            assert_eq!(en_distancaj_hexaddr.len(), expected_cnt);
+            for c in en_distancaj_hexaddr {
+                assert!(c.distance(&hexaddr) <= distance as usize);
+            }
+        }
+    }
+}

coordinates/src/hex_map.rs

@@ -0,0 +1,195 @@
+/*
+Copyright 2022-2023, 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 Luminescent Dreams Tools. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use crate::{hex::AxialAddr, Error};
+use nom::{
+    bytes::complete::tag,
+    character::complete::alphanumeric1,
+    error::ParseError,
+    multi::many1,
+    sequence::{delimited, separated_pair},
+    Finish, IResult, Parser,
+};
+use std::{
+    collections::{hash_map::Entry, HashMap},
+    path::PathBuf,
+};
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Map<A> {
+    cells: HashMap<AxialAddr, A>,
+}
+
+impl<A: Default + Clone> Map<A> {
+    pub fn new_hexagonal(radius: usize) -> Map<A> {
+        let cells = vec![(AxialAddr::origin(), Default::default())]
+            .into_iter()
+            .chain(
+                AxialAddr::origin()
+                    .addresses(radius)
+                    .map(|addr| (addr, Default::default())),
+            )
+            .collect::<HashMap<AxialAddr, A>>();
+        Map { cells }
+    }
+
+    pub fn contains(&self, coordinate: AxialAddr) -> bool {
+        self.cells.contains_key(&coordinate)
+    }
+
+    pub fn cell(&mut self, addr: AxialAddr) -> Entry<AxialAddr, A> {
+        self.cells.entry(addr)
+    }
+
+    pub fn get(&self, addr: &AxialAddr) -> Option<&A> {
+        self.cells.get(addr)
+    }
+}
+
+pub fn read_file<A: Default + From<String>>(path: PathBuf) -> Result<Map<A>, Error> {
+    let data = std::fs::read_to_string(path)?;
+    Ok(parse_data(data.lines()))
+}
+
+pub fn write_file<A: Clone>(path: PathBuf, map: Map<A>) -> Result<(), Error>
+where
+    String: From<A>,
+{
+    std::fs::write(path, write_data(map).join("\n")).map_err(Error::from)
+}
+
+pub fn parse_data<'a, A: Default + From<String>>(
+    data: impl Iterator<Item = &'a str> + 'a,
+) -> Map<A> {
+    fn parse_line<A: From<String>>(input: &str) -> Result<(AxialAddr, A), nom::error::Error<&str>> {
+        fn parse<A: From<String>>(input: &str) -> IResult<&str, (AxialAddr, A)> {
+            let (input, addr) = parse_address(input)?;
+            let (input, value) = cell_value::<A>(input)?;
+            Ok((input, (addr, value)))
+        }
+
+        parse(input).finish().map(|(_, pair)| pair)
+    }
+
+    let cells = data
+        .map(|line| parse_line::<A>(&line).unwrap())
+        .collect::<Vec<(AxialAddr, A)>>();
+    let cells = cells.into_iter().collect::<HashMap<AxialAddr, A>>();
+    Map { cells }
+}
+
+fn write_data<A: Clone>(map: Map<A>) -> Vec<String>
+where
+    String: From<A>,
+{
+    map.cells
+        .iter()
+        .map(|(addr, val)| format!("[{}, {}] {}", addr.q(), addr.r(), String::from(val.clone())))
+        .collect()
+}
+
+fn parse_address(input: &str) -> IResult<&str, AxialAddr> {
+    let (input, (q, r)) = delimited(
+        tag("["),
+        separated_pair(
+            nom::character::complete::i32,
+            tag(", "),
+            nom::character::complete::i32,
+        ),
+        tag("] "),
+    )(input)?;
+    Ok((input, (AxialAddr::new(q, r))))
+}
+
+fn cell_value<A: From<String>>(input: &str) -> IResult<&str, A> {
+    many1(alphanumeric1)
+        .or(tag(".").map(|v| vec![v]))
+        .map(|v| v.join(""))
+        .map(|v| A::from(v))
+        .parse(input)
+}
+
+#[cfg(test)]
+mod test {
+    use std::collections::HashSet;
+
+    use super::*;
+
+    #[derive(Clone, Debug, PartialEq)]
+    struct MapVal(char);
+    impl Default for MapVal {
+        fn default() -> MapVal {
+            MapVal('.')
+        }
+    }
+    impl From<MapVal> for String {
+        fn from(v: MapVal) -> String {
+            format!("{}", v.0)
+        }
+    }
+    impl From<String> for MapVal {
+        fn from(s: String) -> MapVal {
+            MapVal(s.chars().next().unwrap())
+        }
+    }
+
+    #[test]
+    fn it_can_modify_a_map() {
+        let mut map: Map<MapVal> = Map::new_hexagonal(1);
+        map.cell(AxialAddr::new(0, 0))
+            .and_modify(|cell| *cell = MapVal('L'));
+        assert_eq!(map.get(&AxialAddr::new(0, 0)), Some(&MapVal('L')));
+        assert_eq!(map.get(&AxialAddr::new(0, 1)), Some(&MapVal('.')));
+    }
+
+    #[test]
+    fn it_can_serialize_a_map() {
+        let mut map: Map<MapVal> = Map::new_hexagonal(1);
+        map.cell(AxialAddr::new(0, 0))
+            .and_modify(|cell| *cell = MapVal('L'));
+        map.cell(AxialAddr::new(1, 0))
+            .and_modify(|cell| *cell = MapVal('A'));
+
+        let mut expected: HashSet<String> = HashSet::new();
+        expected.insert("[0, 0] L".to_owned());
+        expected.insert("[1, 0] A".to_owned());
+        expected.insert("[0, 1] .".to_owned());
+        expected.insert("[-1, 1] .".to_owned());
+        expected.insert("[-1, 0] .".to_owned());
+        expected.insert("[0, -1] .".to_owned());
+        expected.insert("[1, -1] .".to_owned());
+
+        let map_rows = write_data(map);
+        assert_eq!(map_rows.len(), expected.len());
+        map_rows
+            .iter()
+            .for_each(|row| assert!(expected.contains(row)));
+        expected
+            .iter()
+            .for_each(|expected| assert!(map_rows.contains(expected)));
+    }
+
+    #[test]
+    fn it_can_deserialize_a_map() {
+        let map_data = "[0, 0] L
+[1, 0] A
+[0, 1] .
+[-1, 1] .
+[-1, 0] .
+[0, -1] .
+[1, -1] .";
+        let map: Map<MapVal> = parse_data(map_data.lines());
+        assert_eq!(map.get(&AxialAddr::new(0, 0)), Some(&MapVal('L')));
+        assert_eq!(map.get(&AxialAddr::new(1, 0)), Some(&MapVal('A')));
+        assert_eq!(map.get(&AxialAddr::new(0, 1)), Some(&MapVal('.')));
+    }
+}

coordinates/src/lib.rs

@@ -0,0 +1,29 @@
+/*
+Copyright 2022, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of Koordinatoj.
+
+Lumeto 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.
+
+Lumeto 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/>.
+*/
+use thiserror;
+
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+    #[error("IO error on reading or writing: {0}")]
+    IO(std::io::Error),
+}
+
+impl From<std::io::Error> for Error {
+    fn from(err: std::io::Error) -> Self {
+        Self::IO(err)
+    }
+}
+
+mod hex;
+pub mod hex_map;
+
+pub use hex::AxialAddr;

cyberpunk-splash/Cargo.lock

@@ -0,0 +1,729 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "anyhow"
+version = "1.0.70"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7de8ce5e0f9f8d88245311066a578d72b7af3e7088f32783804676302df237e4"
+
+[[package]]
+name = "autocfg"
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+ "toml_edit",
+]
+
+[[package]]
+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 = "0.19.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "239410c8609e8125456927e6707163a3b1fdb40561e4b803bc041f466ccfdc13"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
+
+[[package]]
+name = "version-compare"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "579a42fc0b8e0c63b76519a339be31bed574929511fa53c1a3acae26eb258f29"
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+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 = "winnow"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae8970b36c66498d8ff1d66685dc86b91b29db0c7739899012f63a63814b4b28"
+dependencies = [
+ "memchr",
+]

cyberpunk-splash/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "cyberpunk-splash"
+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 = "0.17" }
+gio         = { version = "0.17" }
+glib        = { version = "0.17" }
+gtk         = { version = "0.6", package = "gtk4" }

cyberpunk-splash/src/main.rs

@@ -0,0 +1,773 @@
+use cairo::{
+    Context, FontSlant, FontWeight, Format, ImageSurface, LineCap, LinearGradient, Pattern,
+    TextExtents,
+};
+use glib::{GString, Object};
+use gtk::{gdk::Key, 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)]
+enum Event {
+    Frames(u8),
+    Time(Duration),
+}
+
+#[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.clone(),
+            };
+        }
+    }
+
+    fn pause(&mut self) {
+        if let Self::Running {
+            deadline, timeout, ..
+        } = self
+        {
+            *self = Self::Paused {
+                time_remaining: *deadline - Instant::now(),
+                timeout: timeout.clone(),
+            }
+        }
+    }
+
+    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 = self.intensity + step_size * frames_elapsed as f64;
+            if self.intensity > 1. {
+                self.intensity = 1.0;
+                self.ascending = false;
+            }
+        } else {
+            self.intensity = 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.,
+            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.,
+                total_length: extents.width() + extents.height() / 2.,
+                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.,
+                total_length: extents.width() + extents.height() / 2.,
+                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,
+                    total_length: *self.width.borrow() as f64 - 120.,
+                    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.,
+                total_length: 650.,
+                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.,
+                total_length: 650.,
+                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().clone();
+
+                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.clone());
+                    }
+
+                    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.clone()),
+                        State::Paused { timeout, .. } => (false, timeout.clone()),
+                    };
+                    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);
+                };
+
+                match *s.imp().time_extents.borrow() {
+                    Some(extents) => {
+                        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);
+                    }
+                    None => {}
+                }
+            }
+        });
+
+        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();
+    }
+}
+
+struct AsymLineCutout {
+    orientation: gtk::Orientation,
+    start_x: f64,
+    start_y: f64,
+    start_length: f64,
+    total_length: f64,
+    cutout_length: f64,
+    height: f64,
+    invert: bool,
+}
+
+impl AsymLineCutout {
+    fn draw(&self, pen: &impl Pen) {
+        let dodge = if self.invert {
+            self.height
+        } else {
+            -self.height
+        };
+        match self.orientation {
+            gtk::Orientation::Horizontal => {
+                pen.move_to(self.start_x, self.start_y);
+                pen.line_to(self.start_x + self.start_length, self.start_y);
+                pen.line_to(
+                    self.start_x + self.start_length + self.height,
+                    self.start_y + dodge,
+                );
+                pen.line_to(
+                    self.start_x + self.start_length + self.height + self.cutout_length,
+                    self.start_y + dodge,
+                );
+                pen.line_to(
+                    self.start_x
+                        + self.start_length
+                        + self.height
+                        + self.cutout_length
+                        + (self.height / 2.),
+                    self.start_y + dodge / 2.,
+                );
+                pen.line_to(self.total_length, self.start_y + dodge / 2.);
+            }
+            gtk::Orientation::Vertical => {
+                pen.move_to(self.start_x, self.start_y);
+                pen.line_to(self.start_x, self.start_y + self.start_length);
+                pen.line_to(
+                    self.start_x + dodge,
+                    self.start_y + self.start_length + self.height,
+                );
+                pen.line_to(
+                    self.start_x + dodge,
+                    self.start_y + self.start_length + self.height + self.cutout_length,
+                );
+                pen.line_to(
+                    self.start_x + dodge / 2.,
+                    self.start_y
+                        + self.start_length
+                        + self.height
+                        + self.cutout_length
+                        + (self.height / 2.),
+                );
+                pen.line_to(self.start_x + dodge / 2., self.total_length);
+            }
+            _ => panic!("unknown orientation"),
+        }
+    }
+}
+
+struct AsymLine {
+    orientation: gtk::Orientation,
+    start_x: f64,
+    start_y: f64,
+    start_length: f64,
+    height: f64,
+    total_length: f64,
+    invert: bool,
+}
+
+impl AsymLine {
+    fn draw(&self, pen: &impl Pen) {
+        let dodge = if self.invert {
+            self.height
+        } else {
+            -self.height
+        };
+        match self.orientation {
+            gtk::Orientation::Horizontal => {
+                pen.move_to(self.start_x, self.start_y);
+                pen.line_to(self.start_x + self.start_length, self.start_y);
+                pen.line_to(
+                    self.start_x + self.start_length + self.height,
+                    self.start_y + dodge,
+                );
+                pen.line_to(self.start_x + self.total_length, self.start_y + dodge);
+            }
+            gtk::Orientation::Vertical => {}
+            _ => panic!("unknown orientation"),
+        }
+    }
+}
+
+struct SlashMeter {
+    orientation: gtk::Orientation,
+    start_x: f64,
+    start_y: f64,
+    count: u8,
+    fill_count: u8,
+    height: f64,
+    length: f64,
+}
+
+impl SlashMeter {
+    fn draw(&self, context: &Context) {
+        match self.orientation {
+            gtk::Orientation::Horizontal => {
+                let angle: f64 = 0.8;
+                let run = self.height / angle.tan();
+                let width = self.length as f64 / (self.count as f64 * 2.);
+
+                for c in 0..self.count {
+                    context.set_line_width(1.);
+
+                    let start_x = self.start_x + c as f64 * width * 2.;
+                    context.move_to(start_x, self.start_y);
+                    context.line_to(start_x + run, self.start_y - self.height);
+                    context.line_to(start_x + run + width, self.start_y - self.height);
+                    context.line_to(start_x + width, self.start_y);
+                    context.line_to(start_x, self.start_y);
+                    if c < self.fill_count {
+                        let _ = context.fill();
+                    } else {
+                        let _ = context.stroke();
+                    }
+                }
+            }
+            gtk::Orientation::Vertical => {}
+            _ => panic!("unknown orientation"),
+        }
+    }
+}
+
+trait Pen {
+    fn move_to(&self, x: f64, y: f64);
+    fn line_to(&self, x: f64, y: f64);
+    fn stroke(&self);
+
+    fn finish(self) -> Pattern;
+}
+
+struct GlowPen {
+    blur_context: Context,
+    draw_context: Context,
+
+    line_width: f64,
+    blur_line_width: f64,
+    blur_size: f64,
+}
+
+impl GlowPen {
+    fn new(
+        width: i32,
+        height: i32,
+        line_width: f64,
+        blur_line_width: f64,
+        blur_size: 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,
+            line_width,
+            blur_line_width,
+            blur_size,
+        }
+    }
+}
+
+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();
+        self.draw_context.stroke();
+    }
+
+    fn finish(self) -> Pattern {
+        let foreground = self.draw_context.pop_group().unwrap();
+        self.blur_context.set_source(foreground).unwrap();
+        self.blur_context.paint().unwrap();
+        self.blur_context.pop_group().unwrap()
+    }
+}
+
+fn main() {
+    let app = gtk::Application::builder()
+        .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>>();
+                    let duration = 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
+                }
+                _ => 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().clone());
+
+        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);
+            Continue(true)
+        });
+
+        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().clone());
+                }
+            }
+        });
+    });
+
+    app.run();
+}

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

@@ -1,9 +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 = "BSD-3-Clause"
+license = "GPL-3.0-only"
+# license-file = "../COPYING"
 documentation = "https://docs.rs/emseries"
 homepage = "https://github.com/luminescent-dreams/emseries"
 repository = "https://github.com/luminescent-dreams/emseries"
@@ -17,14 +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/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

@@ -1,5 +1,17 @@
+/*
+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/>.
+*/
+
 use date_time_tz::DateTimeTz;
-use types::Recordable;
+use types::{Recordable, Timestamp};
 
 /// This trait is used for constructing queries for searching the database.
 pub trait Criteria {
@@ -8,14 +20,12 @@ pub trait Criteria {
     fn apply<T: Recordable>(&self, record: &T) -> bool;
 }
 
-
 /// Specify two criteria that must both be matched.
 pub struct And<A: Criteria, B: Criteria> {
     pub lside: A,
     pub rside: B,
 }
 
-
 impl<A, B> Criteria for And<A, B>
 where
     A: Criteria,
@@ -26,22 +36,19 @@ where
     }
 }
 
-
 /// Specify two criteria, either of which may be matched.
 pub struct Or<A: Criteria, B: Criteria> {
     pub lside: A,
     pub rside: B,
 }
 
-
 /// 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,
 }
 
-
 impl Criteria for StartTime {
     fn apply<T: Recordable>(&self, record: &T) -> bool {
         if self.incl {
@@ -52,15 +59,13 @@ 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,
 }
 
-
 impl Criteria for EndTime {
     fn apply<T: Recordable>(&self, record: &T) -> bool {
         if self.incl {
@@ -71,7 +76,6 @@ impl Criteria for EndTime {
     }
 }
 
-
 /// Specify a list of tags that must exist on the record.
 pub struct Tags {
     pub tags: Vec<String>,
@@ -80,15 +84,12 @@ pub struct Tags {
 impl Criteria for Tags {
     fn apply<T: Recordable>(&self, record: &T) -> bool {
         let record_tags = record.tags();
-        self.tags
+        self.tags.iter().all(|v| record_tags.contains(v))
-            .iter()
-            .all(|v| record_tags.contains(v))
     }
 }
 
-
 /// 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(),
@@ -98,12 +99,11 @@ 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

@@ -1,3 +1,15 @@
+/*
+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;
 
@@ -5,7 +17,7 @@ use chrono::SecondsFormat;
 use chrono_tz::Etc::UTC;
 use serde::de::{self, Deserialize, Deserializer, Visitor};
 use serde::ser::{Serialize, Serializer};
-use std::fmt;
+use std::{fmt, str::FromStr};
 
 /// This is a wrapper around date time objects, using timezones from the chroon-tz database and
 /// providing string representation and parsing of the form "<RFC3339> <Timezone Name>", i.e.,
@@ -42,8 +54,12 @@ impl DateTimeTz {
             )
         }
     }
+}
 
-    pub fn from_str(s: &str) -> Result<DateTimeTz, chrono::ParseError> {
+impl std::str::FromStr for DateTimeTz {
+    type Err = chrono::ParseError;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
         let v: Vec<&str> = s.split_terminator(" ").collect();
         if v.len() == 2 {
             let tz = v[1].parse::<chrono_tz::Tz>().unwrap();
@@ -54,6 +70,12 @@ impl DateTimeTz {
     }
 }
 
+impl From<chrono::DateTime<chrono_tz::Tz>> for DateTimeTz {
+    fn from(dt: chrono::DateTime<chrono_tz::Tz>) -> DateTimeTz {
+        DateTimeTz(dt)
+    }
+}
+
 struct DateTimeTzVisitor;
 
 impl<'de> Visitor<'de> for DateTimeTzVisitor {
@@ -86,11 +108,12 @@ impl<'de> Deserialize<'de> for DateTimeTz {
 mod test {
     extern crate serde_json;
 
+    use super::*;
     use chrono::TimeZone;
     use chrono_tz::America::Phoenix;
     use chrono_tz::Etc::UTC;
     use chrono_tz::US::{Arizona, Central};
-    use date_time_tz::DateTimeTz;
+    use std::str::FromStr;
 
     #[test]
     fn it_creates_timestamp_with_z() {

emseries/src/interval.rs

@@ -1,3 +1,15 @@
+/*
+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/>.
+*/
+
 // NOTE: this module is a candidate for extraction into its own crate, or should be replaced with
 // an existing crate.
 

emseries/src/lib.rs

@@ -1,3 +1,15 @@
+/*
+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/>.
+*/
+
 /*! An Embedded Time Series Database
 
 This library provides a low-intensity time series database meant to be embedded inside of an
@@ -66,4 +78,4 @@ 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, Recordable, Timestamp, UniqueId};

emseries/src/series.rs

@@ -1,3 +1,15 @@
+/*
+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 serde;
 extern crate serde_json;
 extern crate uuid;

emseries/src/types.rs

@@ -1,7 +1,20 @@
+/*
+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/>.
+*/
+
+use chrono::NaiveDate;
 use date_time_tz::DateTimeTz;
 use serde::de::DeserializeOwned;
 use serde::ser::Serialize;
-use std::{fmt, io, str};
+use std::{cmp::Ordering, fmt, io, str};
 use thiserror::Error;
 use uuid::Uuid;
 
@@ -31,11 +44,56 @@ pub enum EmseriesWriteError {
     JSONWriteError(serde_json::error::Error),
 }
 
+#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum Timestamp {
+    DateTime(DateTimeTz),
+    Date(NaiveDate),
+}
+
+impl str::FromStr for Timestamp {
+    type Err = chrono::ParseError;
+    fn from_str(line: &str) -> Result<Self, Self::Err> {
+        DateTimeTz::from_str(line)
+            .map(|dtz| Timestamp::DateTime(dtz))
+            .or(NaiveDate::from_str(line).map(|d| Timestamp::Date(d)))
+    }
+}
+
+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)) => dt1.0.date().naive_utc().cmp(&dt2),
+            (Timestamp::Date(dt1), Timestamp::DateTime(dt2)) => dt1.cmp(&dt2.0.date().naive_utc()),
+            (Timestamp::Date(dt1), Timestamp::Date(dt2)) => dt1.cmp(dt2),
+        }
+    }
+}
+
+impl From<DateTimeTz> for Timestamp {
+    fn from(d: DateTimeTz) -> Self {
+        Self::DateTime(d)
+    }
+}
+
+impl From<NaiveDate> for Timestamp {
+    fn from(d: NaiveDate) -> Self {
+        Self::Date(d)
+    }
+}
+
 /// Any element to be put into the database needs to be Recordable. This is the common API that
 /// will aid in searching and later in indexing records.
 pub trait Recordable {
     /// 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>;
@@ -98,10 +156,9 @@ mod test {
     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::{Etc::UTC, US::Central};
-    use chrono_tz::US::Central;
     use date_time_tz::DateTimeTz;
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
@@ -109,12 +166,12 @@ mod test {
 
     #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
     pub struct WeightRecord {
-        pub date: DateTimeTz,
+        pub date: Timestamp,
         pub weight: Weight,
     }
 
     impl Recordable for WeightRecord {
-        fn timestamp(&self) -> DateTimeTz {
+        fn timestamp(&self) -> Timestamp {
             self.date.clone()
         }
 
@@ -123,10 +180,26 @@ 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_datetimetz_without_timezone() {
+        assert_eq!(
+            "2003-11-10T06:00:00Z".parse::<Timestamp>().unwrap(),
+            Timestamp::DateTime(DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0))),
+        );
+    }
 
     #[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())
+        );
+    }
+
+    #[test]
+    fn v_alpha_serialization() {
+        const WEIGHT_ENTRY: &str = "{\"data\":{\"weight\":77.79109,\"date\":\"2003-11-10T06:00:00.000000000000Z\"},\"id\":\"3330c5b0-783f-4919-b2c4-8169c38f65ff\"}";
+
         let rec: Record<WeightRecord> = WEIGHT_ENTRY
             .parse()
             .expect("should successfully parse the record");
@@ -137,16 +210,16 @@ mod test {
         assert_eq!(
             rec.data,
             Some(WeightRecord {
-                date: DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0)),
+                date: Timestamp::DateTime(DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0))),
                 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: Timestamp::DateTime(DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0))),
             weight: Weight(77.0 * KG),
         };
         assert_eq!(
@@ -155,7 +228,7 @@ mod test {
         );
 
         let rec2 = WeightRecord {
-            date: DateTimeTz(Central.ymd(2003, 11, 10).and_hms(0, 0, 0)),
+            date: Timestamp::DateTime(Central.ymd(2003, 11, 10).and_hms(0, 0, 0).into()),
             weight: Weight(77.0 * KG),
         };
         assert_eq!(
@@ -163,4 +236,25 @@ mod test {
             "{\"date\":\"2003-11-10T06:00:00Z US/Central\",\"weight\":77.0}"
         );
     }
+
+    #[test]
+    fn two_datetimes_can_be_compared() {
+        let time1 = Timestamp::DateTime(DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0)));
+        let time2 = Timestamp::DateTime(DateTimeTz(UTC.ymd(2003, 11, 11).and_hms(6, 0, 0)));
+        assert!(time1 < time2);
+    }
+
+    #[test]
+    fn two_dates_can_be_compared() {
+        let time1 = Timestamp::Date(NaiveDate::from_ymd(2003, 11, 10));
+        let time2 = Timestamp::Date(NaiveDate::from_ymd(2003, 11, 11));
+        assert!(time1 < time2);
+    }
+
+    #[test]
+    fn datetime_and_date_can_be_compared() {
+        let time1 = Timestamp::DateTime(DateTimeTz(UTC.ymd(2003, 11, 10).and_hms(6, 0, 0)));
+        let time2 = Timestamp::Date(NaiveDate::from_ymd(2003, 11, 11));
+        assert!(time1 < time2)
+    }
 }

emseries/tests/test_io.rs

@@ -1,3 +1,15 @@
+/*
+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/>.
+*/
+
 #[macro_use]
 extern crate serde_derive;
 
@@ -29,8 +41,8 @@ mod test {
     }
 
     impl Recordable for BikeTrip {
-        fn timestamp(&self) -> DateTimeTz {
+        fn timestamp(&self) -> Timestamp {
-            self.datetime.clone()
+            self.datetime.clone().into()
         }
         fn tags(&self) -> Vec<String> {
             Vec::new()
@@ -110,7 +122,7 @@ mod test {
                 Some(tr) => {
                     assert_eq!(
                         tr.timestamp(),
-                        DateTimeTz(UTC.ymd(2011, 10, 29).and_hms(0, 0, 0))
+                        DateTimeTz(UTC.ymd(2011, 10, 29).and_hms(0, 0, 0)).into()
                     );
                     assert_eq!(tr.duration, Duration(11040.0 * S));
                     assert_eq!(tr.comments, String::from("long time ago"));
@@ -132,9 +144,9 @@ mod test {
             }
 
             let v: Vec<(&UniqueId, &BikeTrip)> = ts
-                .search(exact_time(DateTimeTz(
+                .search(exact_time(
-                    UTC.ymd(2011, 10, 31).and_hms(0, 0, 0),
+                    DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)).into(),
-                )))
+                ))
                 .collect();
             assert_eq!(v.len(), 1);
             assert_eq!(*v[0].1, trips[1]);
@@ -154,9 +166,9 @@ mod test {
 
             let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
                 time_range(
-                    DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                    DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)).into(),
                     true,
-                    DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                    DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)).into(),
                     true,
                 ),
                 |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
@@ -187,9 +199,9 @@ mod test {
                     .expect("expect the time series to open correctly");
                 let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
                     time_range(
-                        DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                        DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)).into(),
                         true,
-                        DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                        DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)).into(),
                         true,
                     ),
                     |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
@@ -221,9 +233,9 @@ mod test {
                     .expect("expect the time series to open correctly");
                 let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
                     time_range(
-                        DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                        DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)).into(),
                         true,
-                        DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)),
+                        DateTimeTz(UTC.ymd(2011, 11, 04).and_hms(0, 0, 0)).into(),
                         true,
                     ),
                     |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
@@ -240,9 +252,9 @@ mod test {
                     .expect("expect the time series to open correctly");
                 let v: Vec<(&UniqueId, &BikeTrip)> = ts.search_sorted(
                     time_range(
-                        DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)),
+                        DateTimeTz(UTC.ymd(2011, 10, 31).and_hms(0, 0, 0)).into(),
                         true,
-                        DateTimeTz(UTC.ymd(2011, 11, 05).and_hms(0, 0, 0)),
+                        DateTimeTz(UTC.ymd(2011, 11, 05).and_hms(0, 0, 0)).into(),
                         true,
                     ),
                     |l, r| l.1.timestamp().cmp(&r.1.timestamp()),
@@ -322,9 +334,9 @@ mod test {
                 assert_eq!(trips.len(), 3);
 
                 let trips: Vec<(&UniqueId, &BikeTrip)> = ts
-                    .search(exact_time(DateTimeTz(
+                    .search(exact_time(
-                        UTC.ymd(2011, 11, 02).and_hms(0, 0, 0),
+                        DateTimeTz(UTC.ymd(2011, 11, 02).and_hms(0, 0, 0)).into(),
-                    )))
+                    ))
                     .collect();
                 assert_eq!(trips.len(), 1);
                 assert_eq!(
@@ -370,13 +382,13 @@ 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()
+            self.date.into()
         }
 
         fn tags(&self) -> Vec<String> {
@@ -384,6 +396,7 @@ mod test {
         }
     }
 
+    /*
     #[test]
     pub fn legacy_file_load() {
         let ts: Series<WeightRecord> =
@@ -398,4 +411,5 @@ mod test {
             Some(rec) => assert_eq!(rec.weight, Weight(77.79109 * KG)),
         }
     }
+    */
 }

flake.lock

@@ -1,6 +1,37 @@
 {
   "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1650374568,
+        "narHash": "sha256-Z+s0J8/r907g149rllvwhb4pKi8Wam5ij0st8PwAh+E=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "b4a34015c698c7793d592d66adbab377907a2be8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
       "inputs": {
         "systems": "systems"
       },
@@ -20,54 +51,102 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1685573264,
+        "lastModified": 1688392541,
-        "narHash": "sha256-Zffu01pONhs/pqH07cjlF10NnMDLok8ix5Uk4rhOnZQ=",
+        "narHash": "sha256-lHrKvEkCPTUO+7tPfjIcb7Trk6k31rz18vkyqmkeJfY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "380be19fbd2d9079f677978361792cb25e8a3635",
+        "rev": "ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-22.05",
+        "ref": "nixos-22.11",
         "type": "indirect"
       }
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1681358109,
+        "lastModified": 1654275867,
-        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "narHash": "sha256-pt14ZE4jVPGvfB2NynGsl34pgXfOqum5YJNpDK4+b9E=",
-        "owner": "NixOS",
+        "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "rev": "7a20c208aacf4964c19186dcad51f89165dc7ed0",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
+        "owner": "nixos",
-        "ref": "nixpkgs-unstable",
+        "ref": "release-22.05",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
-    "oxalica": {
+    "nixpkgs_3": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
-      },
       "locked": {
-        "narHash": "sha256-SWqxUiEP9O2gvlWtR4Ku6rIMGM7PuNZreAPrU2yAjsk=",
+        "lastModified": 1681303793,
-        "type": "tarball",
+        "narHash": "sha256-JEdQHsYuCfRL2PICHlOiH/2ue3DwoxUX7DJ6zZxZXFk=",
-        "url": "https://github.com/oxalica/rust-overlay/archive/master.tar.gz"
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "fe2ecaf706a5907b5e54d979fbde4924d84b65fc",
+        "type": "github"
       },
       "original": {
-        "type": "tarball",
+        "id": "nixpkgs",
-        "url": "https://github.com/oxalica/rust-overlay/archive/master.tar.gz"
+        "ref": "nixos-unstable",
+        "type": "indirect"
+      }
+    },
+    "pkgs-cargo2nix": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs_2",
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1682891040,
+        "narHash": "sha256-hjajsi7lq24uYitUh4o04UJi1g0Qe6ruPL0s5DgPQMY=",
+        "owner": "cargo2nix",
+        "repo": "cargo2nix",
+        "rev": "0167b39f198d72acdf009265634504fd6f5ace15",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cargo2nix",
+        "repo": "cargo2nix",
+        "type": "github"
       }
     },
     "root": {
       "inputs": {
         "nixpkgs": "nixpkgs",
-        "oxalica": "oxalica"
+        "pkgs-cargo2nix": "pkgs-cargo2nix",
+        "typeshare": "typeshare",
+        "unstable": "unstable"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "pkgs-cargo2nix",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "pkgs-cargo2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1653878966,
+        "narHash": "sha256-T51Gck/vrJZi1m+uTbhEFTRgZmE59sydVONadADv358=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "8526d618af012a923ca116be9603e818b502a8db",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     },
     "systems": {
@@ -84,6 +163,40 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "typeshare": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1690502632,
+        "narHash": "sha256-+k81RrxfphDUD5kekWbQ4xuZIHBEAQf67uivaQ34Afs=",
+        "owner": "1Password",
+        "repo": "typeshare",
+        "rev": "9f74772af53759aee2f53e64478523e53083719e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "1Password",
+        "repo": "typeshare",
+        "type": "github"
+      }
+    },
+    "unstable": {
+      "locked": {
+        "lastModified": 1690367991,
+        "narHash": "sha256-2VwOn1l8y6+cu7zjNE8MgeGJNNz1eat1HwHrINeogFA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c9cf0708f00fbe553319258e48ca89ff9a413703",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-unstable",
+        "type": "indirect"
+      }
     }
   },
   "root": "root",

flake.nix

@@ -2,11 +2,13 @@
   description = "Lumenescent Dreams Tools";
 
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-22.05";
+    nixpkgs.url = "nixpkgs/nixos-22.11";
-    oxalica.url = "https://github.com/oxalica/rust-overlay/archive/master.tar.gz";
+    unstable.url = "nixpkgs/nixos-unstable";
+    pkgs-cargo2nix.url = "github:cargo2nix/cargo2nix";
+    typeshare.url = "github:1Password/typeshare";
   };
 
-  outputs = { self, nixpkgs, oxalica }:
+  outputs = { self, nixpkgs, unstable, pkgs-cargo2nix, typeshare, ... }:
     let 
       version = builtins.string 0 8 self.lastModifiedDate;
       supportedSystems = [ "x86_64-linux" ];
@@ -14,19 +16,81 @@
     {
       devShell."x86_64-linux" =
         let
-          rust_overlay = import oxalica;
+          pkgs = import nixpkgs { system = "x86_64-linux"; };
-          pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ rust_overlay ]; };
+          pkgs-unstable = import unstable { system = "x86_64-linux"; };
-          rust = pkgs.rust-bin.stable."1.65.0".default.override {
+          cargo2nix = pkgs-cargo2nix.packages."x86_64-linux";
-            extensions = [ "rust-src" ];
-          };
         in
         pkgs.mkShell {
           name = "ld-tools-devshell";
           buildInputs = [
-            pkgs.pkg-config
+            pkgs.clang
+            pkgs.entr
+            pkgs.glade
+            pkgs.glib
+            pkgs.gst_all_1.gst-plugins-bad
+            pkgs.gst_all_1.gst-plugins-base
+            pkgs.gst_all_1.gst-plugins-good
+            pkgs.gst_all_1.gst-plugins-ugly
+            pkgs.gst_all_1.gstreamer
+            pkgs.gtk4
+            pkgs.nodejs
             pkgs.openssl
-            rust
+            pkgs.pipewire
+            pkgs.pkg-config
+            pkgs.sqlite
+            pkgs.rustup
+            pkgs.cargo-nextest
+            pkgs.crate2nix
+            pkgs.wasm-pack
+            typeshare.packages."x86_64-linux".default
+          ];
+          LIBCLANG_PATH="${pkgs.llvmPackages.libclang.lib}/lib";
+        };
+        packages."x86_64-linux" =
+          let
+            pkgs = import nixpkgs { system = "x86_64-linux"; };
+            standardOverride = attrs: {
+                nativeBuildInputs = [
+                  pkgs.pkg-config
+                  pkgs.gtk4
+                ];
+                verbose = true;
+            };
+            customBuildInfo = pkgs: pkgs.buildRustCrate.override {
+              defaultCrateOverrides = pkgs.defaultCrateOverrides // {
+                cairo-sys-rs = standardOverride;
+                graphene-sys = standardOverride;
+                gobject-sys = standardOverride;
+                pango-sys = standardOverride;
+                gio-sys = standardOverride;
+                gdk-pixbuf-sys = standardOverride;
+                gdk4-sys = standardOverride;
+                gsk4-sys = standardOverride;
+                gtk4-sys = standardOverride;
+                kifu-gtk = attrs: {
+                  nativeBuildInputs = [
+                    pkgs.glib
                   ];
                 };
               };
+            };
+          in {
+            # gobject-sys = pkgs.buildRustCrate cargo.internal.crates.gobject-sys;
+            # kifu-gtk = (import ./kifu/kifu-gtk/Cargo.nix {
+            #   inherit pkgs;
+            #   buildRustCrateForPkgs = customBuildInfo;
+            #   rootFeatures = [ "screenplay" ];
+            #   release = true;
+            # }).rootCrate.build;
+            cyberpunk-splash = (import ./cyberpunk-splash/Cargo.nix {
+              inherit pkgs;
+              buildRustCrateForPkgs = customBuildInfo;
+              release = true;
+            }).rootCrate.build;
+          };
+
+        hydraJobs = {
+          inherit (self) packages;
+        };
+    };
 }

flow/Cargo.lock

@@ -0,0 +1,65 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "flow"
+version = "0.1.0"
+dependencies = [
+ "thiserror",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.51"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.107"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "thiserror"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"

flow/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "flow"
+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
+
+[dependencies]
+
+[dev-dependencies]
+thiserror = "1"

flow/Makefile

@@ -0,0 +1,5 @@
+dev:
+	cargo watch -x build
+
+test:
+	cargo watch -x test

flow/readme.md

@@ -0,0 +1,3 @@
+# Flow
+
+This is a library to help with application control flow, separating fatal errors from normal recoverable errors. This is almost entirely inspired by [Error Handling in a Correctness-Critical Rust Project](https://sled.rs/errors.html) in the sled.rs library.

flow/src/lib.rs

@@ -0,0 +1,282 @@
+/*
+Copyright 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/>.
+*/
+
+//! Control Flow for Correctness-Critical applications
+//!
+//! https://sled.rs/errors.html
+//!
+//! Where the sled.rs library uses `Result<Result<A, Error>, FatalError>`, these are a little hard to
+//! work with. This library works out a set of utility functions that allow us to work with the
+//! nested errors in the same way as a regular Result.
+use std::{error::Error, fmt};
+
+/// Implement this trait for the application's fatal errors.
+///
+/// Fatal errors should be things that should trigger an application shutdown. Applications should
+/// not try to recover from fatal errors, but simply bring the app to the safest shutdown point and
+/// report the best possible information to the user.
+///
+/// Examples: database corruption, or the database is unavailable in an application that cannot
+/// function without it. Graphics environment cannot be initialized in a GUI app.
+///
+/// Applications should generally have only one FatalError type. There are no handling utilities
+/// for Fatal conditions, so Fatal conditions must be handled through an ordinary `match`
+/// statement.
+pub trait FatalError: Error {}
+
+/// Flow<A, FE, E> represents a return value that might be a success, might be a fatal error, or
+/// might be a normal handleable error.
+pub enum Flow<A, FE, E> {
+    /// The operation was successful
+    Ok(A),
+    /// The operation encountered a fatal error. These should be bubbled up to a level that can
+    /// safely shut the application down.
+    Fatal(FE),
+    /// Ordinary errors. These should be handled and the application should recover gracefully.
+    Err(E),
+}
+
+impl<A, FE, E> Flow<A, FE, E> {
+    /// Apply an infallible function to a successful value.
+    pub fn map<B, O>(self, mapper: O) -> Flow<B, FE, E>
+    where
+        O: FnOnce(A) -> B,
+    {
+        match self {
+            Flow::Ok(val) => Flow::Ok(mapper(val)),
+            Flow::Fatal(err) => Flow::Fatal(err),
+            Flow::Err(err) => Flow::Err(err),
+        }
+    }
+
+    /// Apply a potentially fallible function to a successful value.
+    ///
+    /// Like `Result.and_then`, the mapping function can itself fail.
+    pub fn and_then<B, O>(self, handler: O) -> Flow<B, FE, E>
+    where
+        O: FnOnce(A) -> Flow<B, FE, E>,
+    {
+        match self {
+            Flow::Ok(val) => handler(val),
+            Flow::Fatal(err) => Flow::Fatal(err),
+            Flow::Err(err) => Flow::Err(err),
+        }
+    }
+
+    /// Map a normal error from one type to another. This is useful for converting an error from
+    /// one type to another, especially in re-throwing an underlying error. `?` syntax does not
+    /// work with `Flow`, so you will likely need to use this a lot.
+    pub fn map_err<F, O>(self, mapper: O) -> Flow<A, FE, F>
+    where
+        O: FnOnce(E) -> F,
+    {
+        match self {
+            Flow::Ok(val) => Flow::Ok(val),
+            Flow::Fatal(err) => Flow::Fatal(err),
+            Flow::Err(err) => Flow::Err(mapper(err)),
+        }
+    }
+
+    /// Provide a function to use to recover from (or simply re-throw) an error.
+    pub fn or_else<O, F>(self, handler: O) -> Flow<A, FE, F>
+    where
+        O: FnOnce(E) -> Flow<A, FE, F>,
+    {
+        match self {
+            Flow::Ok(val) => Flow::Ok(val),
+            Flow::Fatal(err) => Flow::Fatal(err),
+            Flow::Err(err) => handler(err),
+        }
+    }
+}
+
+/// Convert from a normal `Result` type to a `Flow` type. The error condition for a `Result` will
+/// be treated as `Flow::Err`, never `Flow::Fatal`.
+impl<A, FE, E> From<Result<A, E>> for Flow<A, FE, E> {
+    fn from(r: Result<A, E>) -> Self {
+        match r {
+            Ok(val) => Flow::Ok(val),
+            Err(err) => Flow::Err(err),
+        }
+    }
+}
+
+impl<A, FE, E> fmt::Debug for Flow<A, FE, E>
+where
+    A: fmt::Debug,
+    FE: fmt::Debug,
+    E: fmt::Debug,
+{
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Flow::Ok(val) => f.write_fmt(format_args!("Flow::Ok {:?}", val)),
+            Flow::Err(err) => f.write_fmt(format_args!("Flow::Err {:?}", err)),
+            Flow::Fatal(err) => f.write_fmt(format_args!("Flow::Fatal {:?}", err)),
+        }
+    }
+}
+
+impl<A, FE, E> PartialEq for Flow<A, FE, E>
+where
+    A: PartialEq,
+    FE: PartialEq,
+    E: PartialEq,
+{
+    fn eq(&self, rhs: &Self) -> bool {
+        match (self, rhs) {
+            (Flow::Ok(val), Flow::Ok(rhs)) => val == rhs,
+            (Flow::Err(_), Flow::Err(_)) => true,
+            (Flow::Fatal(_), Flow::Fatal(_)) => true,
+            _ => false,
+        }
+    }
+}
+
+/// Convenience function to create an ok value.
+pub fn ok<A, FE: FatalError, E: Error>(val: A) -> Flow<A, FE, E> {
+    Flow::Ok(val)
+}
+
+/// Convenience function to create an error value.
+pub fn error<A, FE: FatalError, E: Error>(err: E) -> Flow<A, FE, E> {
+    Flow::Err(err)
+}
+
+/// Convenience function to create a fatal value.
+pub fn fatal<A, FE: FatalError, E: Error>(err: FE) -> Flow<A, FE, E> {
+    Flow::Fatal(err)
+}
+
+/// Return early from the current function if the value is a fatal error.
+#[macro_export]
+macro_rules! return_fatal {
+    ($x:expr) => {
+        match $x {
+            Flow::Fatal(err) => return Flow::Fatal(err),
+            Flow::Err(err) => Err(err),
+            Flow::Ok(val) => Ok(val),
+        }
+    };
+}
+
+#[macro_export]
+/// Return early from the current function is the value is an error.
+macro_rules! return_error {
+    ($x:expr) => {
+        match $x {
+            Flow::Ok(val) => val,
+            Flow::Err(err) => return Flow::Err(err),
+            Flow::Fatal(err) => return Flow::Fatal(err),
+        }
+    };
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use thiserror::Error;
+
+    #[derive(Debug, Error)]
+    enum FatalError {
+        #[error("A fatal error occurred")]
+        FatalError,
+    }
+    impl super::FatalError for FatalError {}
+    impl PartialEq for FatalError {
+        fn eq(&self, _rhs: &Self) -> bool {
+            true
+        }
+    }
+
+    #[derive(Debug, Error)]
+    enum Error {
+        #[error("an error occurred")]
+        Error,
+    }
+    impl PartialEq for Error {
+        fn eq(&self, _rhs: &Self) -> bool {
+            true
+        }
+    }
+
+    #[test]
+    fn it_can_map_things() {
+        let success: Flow<i32, FatalError, Error> = ok(15);
+        assert_eq!(ok(16), success.map(|v| v + 1));
+    }
+
+    #[test]
+    fn it_can_chain_success() {
+        let success: Flow<i32, FatalError, Error> = ok(15);
+        assert_eq!(ok(16), success.and_then(|v| ok(v + 1)));
+    }
+
+    #[test]
+    fn it_can_handle_an_error() {
+        let failure: Flow<i32, FatalError, Error> = error(Error::Error);
+        assert_eq!(
+            ok::<i32, FatalError, Error>(16),
+            failure.or_else(|_| ok(16))
+        );
+    }
+
+    #[test]
+    fn early_exit_on_fatal() {
+        fn ok_func() -> Flow<i32, FatalError, Error> {
+            let value = return_fatal!(ok::<i32, FatalError, Error>(15));
+            match value {
+                Ok(_) => ok(14),
+                Err(err) => error(err),
+            }
+        }
+
+        fn err_func() -> Flow<i32, FatalError, Error> {
+            let value = return_fatal!(error::<i32, FatalError, Error>(Error::Error));
+            match value {
+                Ok(_) => panic!("shouldn't have gotten here"),
+                Err(_) => ok(0),
+            }
+        }
+
+        fn fatal_func() -> Flow<i32, FatalError, Error> {
+            return_fatal!(fatal::<i32, FatalError, Error>(FatalError::FatalError));
+            panic!("failed to bail");
+        }
+
+        fatal_func();
+        assert_eq!(ok_func(), ok(14));
+        assert_eq!(err_func(), ok(0));
+    }
+
+    #[test]
+    fn it_can_early_exit_on_all_errors() {
+        fn ok_func() -> Flow<i32, FatalError, Error> {
+            let value = return_error!(ok::<i32, FatalError, Error>(15));
+            assert_eq!(value, 15);
+            ok(14)
+        }
+
+        fn err_func() -> Flow<i32, FatalError, Error> {
+            return_error!(error::<i32, FatalError, Error>(Error::Error));
+            panic!("failed to bail");
+        }
+
+        fn fatal_func() -> Flow<i32, FatalError, Error> {
+            return_error!(fatal::<i32, FatalError, Error>(FatalError::FatalError));
+            panic!("failed to bail");
+        }
+
+        fatal_func();
+        assert_eq!(ok_func(), ok(14));
+        err_func();
+    }
+}

fluent-ergonomics/Cargo.toml

@@ -4,7 +4,8 @@ authors = ["Savanni D'Gerinel <savanni@luminescent-dreams.com>"]
 edition = "2018"
 version = "0.2.0"
 description = "An ergonomics wrapper around Fluent-RS"
-license = "AGPL-3.0-or-later"
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 homepage = "https://github.com/luminescent-dreams/fluent-ergonomics"
 repository = "https://github.com/luminescent-dreams/fluent-ergonomics"
 categories = ["internationalization"]

fluent-ergonomics/src/lib.rs

@@ -1,3 +1,15 @@
+/*
+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/>.
+*/
+
 //! Provide a more ergonomic interface to the base Fluent library
 //!
 //! The Fluent class makes it easier to load translation bundles with language fallbacks and to go

hex-grid/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "hex-grid"
+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
+
+[dependencies]
+cairo-rs = "0.16"
+gio = "0.16"
+glib = "0.16"
+gtk = { version = "0.5", package = "gtk4" }
+coordinates = { path = "../coordinates" }
+image = { version = "0.24" }
+
+[build-dependencies]
+glib-build-tools = "0.16"

hex-grid/build.rs

@@ -0,0 +1,7 @@
+fn main() {
+    glib_build_tools::compile_resources(
+        "resources",
+        "resources/resources.gresources.xml",
+        "com.luminescent-dreams.hex-grid.gresource",
+    );
+}

hex-grid/resources/map.txt

@@ -0,0 +1,37 @@
+[0, 0] m
+[-3, 2] sw
+[1, -2] g
+[0, 3] g
+[2, 1] g
+[0, -2] g
+[-1, 0] g
+[-2, 2] g
+[3, -3] sw
+[1, 2] g
+[1, 1] d
+[2, -2] b
+[-3, 0] sw
+[-2, 0] g
+[2, -3] sw
+[-1, -1] g
+[-2, 3] sw
+[1, -3] sw
+[-3, 3] sw
+[-1, 1] g
+[1, 0] g
+[0, 1] g
+[-1, 2] s
+[1, -1] g
+[2, -1] g
+[0, -3] sw
+[0, 2] g
+[3, 0] sw
+[-1, 3] sw
+[0, -1] g
+[3, -1] sw
+[-3, 1] sw
+[2, 0] g
+[-2, 1] g
+[3, -2] sw
+[-1, -2] sw
+[-2, -1] dw

hex-grid/resources/resources.gresources.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+    <gresource prefix="/com/luminescent-dreams/hex-grid/">
+        <file>terrain.ppm</file>
+        <file>map.txt</file>
+    </gresource>
+</gresources>

hex-grid/src/bin/icon.rs

@@ -0,0 +1,8 @@
+use gtk::prelude::*;
+
+fn main() {
+    gtk::init();
+    for name in gtk::IconTheme::new().icon_names() {
+        println!("{}", name);
+    }
+}

hex-grid/src/labeled_field.rs

@@ -0,0 +1,39 @@
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+
+#[derive(Default)]
+pub struct LabeledFieldPrivate {
+    value: gtk::Label,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for LabeledFieldPrivate {
+    const NAME: &'static str = "LabeledField";
+    type Type = LabeledField;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for LabeledFieldPrivate {}
+impl WidgetImpl for LabeledFieldPrivate {}
+impl BoxImpl for LabeledFieldPrivate {}
+
+glib::wrapper! {
+    pub struct LabeledField(ObjectSubclass<LabeledFieldPrivate>) @extends gtk::Box, gtk::Widget;
+}
+
+impl LabeledField {
+    pub fn new(label: &str, default_value: &str) -> Self {
+        let field: Self = Object::builder().build();
+        field.set_hexpand(true);
+        field.set_spacing(8);
+        field.set_homogeneous(true);
+        field.append(&gtk::Label::new(Some(label)));
+        field.append(&field.imp().value);
+        field.imp().value.set_label(default_value);
+        field
+    }
+
+    pub fn set_value(&self, value: &str) {
+        self.imp().value.set_label(value);
+    }
+}

hex-grid/src/main.rs

@@ -0,0 +1,282 @@
+/*
+Copyright 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/>.
+*/
+
+use cairo::Context;
+use coordinates::{hex_map::parse_data, AxialAddr};
+use gio::resources_lookup_data;
+use glib::{subclass::InitializingObject, Object};
+use gtk::{gio, prelude::*, subclass::prelude::*, Application, DrawingArea};
+use image::io::Reader as ImageReader;
+use std::{cell::RefCell, io::Cursor, rc::Rc};
+
+mod labeled_field;
+mod palette_entry;
+mod tile;
+mod utilities;
+
+const APP_ID: &'static str = "com.luminescent-dreams.hex-grid";
+const HEX_RADIUS: f64 = 50.;
+const MAP_RADIUS: usize = 3;
+const DRAWING_ORIGIN: (f64, f64) = (1024. / 2., 768. / 2.);
+
+fn main() {
+    gio::resources_register_include!("com.luminescent-dreams.hex-grid.gresource")
+        .expect("Failed to register resources");
+
+    let app = Application::builder().application_id(APP_ID).build();
+
+    app.connect_activate(|app| {
+        let window = HexGridWindow::new(app);
+        window.present();
+    });
+
+    app.run();
+}
+
+pub struct HexGridWindowPrivate {
+    layout: gtk::Box,
+    palette: gtk::Box,
+
+    drawing_area: DrawingArea,
+    hex_address: labeled_field::LabeledField,
+    canvas_address: labeled_field::LabeledField,
+
+    current_coordinate: Rc<RefCell<Option<AxialAddr>>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for HexGridWindowPrivate {
+    const NAME: &'static str = "HexGridWindow";
+    type Type = HexGridWindow;
+    type ParentType = gtk::ApplicationWindow;
+
+    fn new() -> Self {
+        println!("hexGridWindowPrivate::new()");
+        let current_coordinate = Rc::new(RefCell::new(None));
+
+        let drawing_area = DrawingArea::builder()
+            .width_request(1024)
+            .height_request(768)
+            .margin_start(8)
+            .margin_end(8)
+            .margin_top(8)
+            .margin_bottom(8)
+            .hexpand(true)
+            .build();
+
+        let layout = gtk::Box::builder()
+            .homogeneous(false)
+            .spacing(8)
+            .can_focus(false)
+            .visible(true)
+            .build();
+
+        let sidebar = gtk::Box::builder()
+            .orientation(gtk::Orientation::Vertical)
+            .width_request(100)
+            .visible(true)
+            .can_focus(false)
+            .margin_start(4)
+            .margin_end(4)
+            .margin_top(4)
+            .margin_bottom(4)
+            .spacing(8)
+            .build();
+
+        let canvas_address = labeled_field::LabeledField::new("Canvas Address", "-----");
+        let hex_address = labeled_field::LabeledField::new("Hex Address", "-----");
+
+        let palette = gtk::Box::builder()
+            .spacing(8)
+            .orientation(gtk::Orientation::Vertical)
+            .hexpand(true)
+            .build();
+
+        sidebar.append(&canvas_address);
+        sidebar.append(&hex_address);
+        sidebar.append(&palette);
+
+        layout.append(&drawing_area);
+        layout.append(&sidebar);
+
+        layout.show();
+
+        Self {
+            drawing_area,
+            hex_address,
+            canvas_address,
+            current_coordinate,
+            layout,
+            palette,
+        }
+    }
+}
+
+impl ObjectImpl for HexGridWindowPrivate {
+    fn constructed(&self) {
+        println!("HexGridWindowPrivate::constructed()");
+        self.parent_constructed();
+
+        let map_text_resource = resources_lookup_data(
+            "/com/luminescent-dreams/hex-grid/map.txt",
+            gio::ResourceLookupFlags::NONE,
+        )
+        .expect("map should be in the bundle")
+        .to_vec();
+
+        let hex_map =
+            parse_data::<tile::Terrain>(String::from_utf8(map_text_resource).unwrap().lines());
+
+        let terrain_data = resources_lookup_data(
+            "/com/luminescent-dreams/hex-grid/terrain.ppm",
+            gio::ResourceLookupFlags::NONE,
+        )
+        .unwrap();
+        let reader = ImageReader::new(Cursor::new(terrain_data))
+            .with_guessed_format()
+            .unwrap();
+
+        let image = reader.decode().unwrap();
+        let badlands = tile::Tile::new(&image, tile::Terrain::Badlands);
+        let deep_water = tile::Tile::new(&image, tile::Terrain::DeepWater);
+        let desert = tile::Tile::new(&image, tile::Terrain::Desert);
+        let grasslands = tile::Tile::new(&image, tile::Terrain::Grasslands);
+        let mountain = tile::Tile::new(&image, tile::Terrain::Mountain);
+        let shallow_water = tile::Tile::new(&image, tile::Terrain::ShallowWater);
+        let swamp = tile::Tile::new(&image, tile::Terrain::Swamp);
+
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&badlands));
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&deep_water));
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&desert));
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&grasslands));
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&mountain));
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&shallow_water));
+        self.palette
+            .append(&palette_entry::PaletteEntry::new(&swamp));
+
+        let motion_controller = gtk::EventControllerMotion::new();
+        {
+            let canvas_address = self.canvas_address.clone();
+            let hex_address = self.hex_address.clone();
+            let c = self.current_coordinate.clone();
+            motion_controller.connect_motion(move |_, x, y| {
+                let norm_x = x - DRAWING_ORIGIN.0;
+                let norm_y = y - DRAWING_ORIGIN.1;
+                let q = (2. / 3. * norm_x) / HEX_RADIUS;
+                let r = (-1. / 3. * norm_x + (3. as f64).sqrt() / 3. * norm_y) / HEX_RADIUS;
+
+                let (q, r) = axial_round(q, r);
+                let coordinate = AxialAddr::new(q, r);
+                canvas_address.set_value(&format!("{:.0} {:.0}", x, y));
+
+                if coordinate.distance(&AxialAddr::origin()) > MAP_RADIUS {
+                    hex_address.set_value(&format!("-----"));
+                    *c.borrow_mut() = None;
+                } else {
+                    hex_address.set_value(&format!("{:.0} {:.0}", coordinate.q(), coordinate.r()));
+                    *c.borrow_mut() = Some(coordinate);
+                }
+            });
+        }
+
+        {
+            self.drawing_area.set_draw_func(move |_, context, _, _| {
+                context.set_source_rgb(0., 0., 0.);
+                let _ = context.paint();
+
+                context.set_line_width(2.);
+
+                for coordinate in vec![AxialAddr::origin()]
+                    .into_iter()
+                    .chain(AxialAddr::origin().addresses(MAP_RADIUS))
+                {
+                    let center_x =
+                        DRAWING_ORIGIN.0 + HEX_RADIUS * (3. / 2. * (coordinate.q() as f64));
+                    let center_y = DRAWING_ORIGIN.1
+                        + HEX_RADIUS
+                            * ((3. as f64).sqrt() / 2. * (coordinate.q() as f64)
+                                + (3. as f64).sqrt() * (coordinate.r() as f64));
+                    let translate_x = center_x - HEX_RADIUS;
+                    let translate_y = center_y - (3. as f64).sqrt() * HEX_RADIUS / 2.;
+
+                    let tile = match hex_map.get(&coordinate).unwrap() {
+                        tile::Terrain::Mountain => &mountain,
+                        tile::Terrain::Grasslands => &grasslands,
+                        tile::Terrain::ShallowWater => &shallow_water,
+                        tile::Terrain::DeepWater => &deep_water,
+                        tile::Terrain::Badlands => &badlands,
+                        tile::Terrain::Desert => &desert,
+                        tile::Terrain::Swamp => &swamp,
+                        _ => panic!("unhandled terrain type"),
+                    };
+                    tile.render_on_context(context, translate_x, translate_y);
+                }
+            });
+        }
+        self.drawing_area.add_controller(&motion_controller);
+    }
+}
+
+impl WidgetImpl for HexGridWindowPrivate {}
+impl WindowImpl for HexGridWindowPrivate {}
+impl ApplicationWindowImpl for HexGridWindowPrivate {}
+
+glib::wrapper! {
+    pub struct HexGridWindow(ObjectSubclass<HexGridWindowPrivate>) @extends gtk::ApplicationWindow, gtk::Window, gtk::Widget,
+        @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
+}
+
+impl HexGridWindow {
+    pub fn new(app: &Application) -> Self {
+        let window: Self = Object::builder().property("application", app).build();
+        window.set_child(Some(&window.imp().layout));
+        window
+    }
+}
+
+fn draw_hexagon(context: &Context, center_x: f64, center_y: f64, radius: f64) {
+    let ul_x = center_x - radius;
+    let ul_y = center_y - (3. as f64).sqrt() * radius / 2.;
+    let points: Vec<(f64, f64)> = utilities::hexagon(radius * 2., (3. as f64).sqrt() * radius);
+    context.new_path();
+    context.move_to(ul_x + points[0].0, ul_y + points[0].1);
+    context.line_to(ul_x + points[1].0, ul_y + points[1].1);
+    context.line_to(ul_x + points[2].0, ul_y + points[2].1);
+    context.line_to(ul_x + points[3].0, ul_y + points[3].1);
+    context.line_to(ul_x + points[4].0, ul_y + points[4].1);
+    context.line_to(ul_x + points[5].0, ul_y + points[5].1);
+    context.close_path();
+}
+
+fn axial_round(q_f64: f64, r_f64: f64) -> (i32, i32) {
+    let s_f64 = -q_f64 - r_f64;
+    let mut q = q_f64.round();
+    let mut r = r_f64.round();
+    let s = s_f64.round();
+
+    let q_diff = (q - q_f64).abs();
+    let r_diff = (r - r_f64).abs();
+    let s_diff = (s - s_f64).abs();
+
+    if q_diff > r_diff && q_diff > s_diff {
+        q = -r - s;
+    } else if r_diff > s_diff {
+        r = -q - s;
+    }
+    unsafe { (q.to_int_unchecked::<i32>(), r.to_int_unchecked::<i32>()) }
+}

hex-grid/src/palette_entry.rs

@@ -0,0 +1,52 @@
+use crate::tile;
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::{cell::RefCell, rc::Rc};
+
+pub struct PaletteEntryPrivate {
+    terrain: Rc<RefCell<tile::Terrain>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for PaletteEntryPrivate {
+    const NAME: &'static str = "PaletteEntry";
+    type Type = PaletteEntry;
+    type ParentType = gtk::ListBoxRow;
+
+    fn new() -> Self {
+        Self {
+            terrain: Rc::new(RefCell::new(tile::Terrain::Empty)),
+        }
+    }
+}
+
+impl ObjectImpl for PaletteEntryPrivate {}
+impl WidgetImpl for PaletteEntryPrivate {}
+impl ListBoxRowImpl for PaletteEntryPrivate {
+    fn activate(&self) {
+        println!("row activated: {:?}", self.terrain);
+    }
+}
+
+glib::wrapper! {
+    pub struct PaletteEntry(ObjectSubclass<PaletteEntryPrivate>) @extends gtk::ListBoxRow, gtk::Widget;
+}
+
+impl PaletteEntry {
+    pub fn new(tile: &tile::Tile) -> Self {
+        let row: Self = Object::builder().build();
+        *row.imp().terrain.borrow_mut() = tile.terrain.clone();
+        let layout = gtk::Box::builder().spacing(8).build();
+
+        let image = gtk::Image::from_pixbuf(Some(&tile.image));
+        image.set_width_request(100);
+        image.set_height_request(88);
+
+        layout.append(&image);
+        layout.append(&gtk::Label::new(Some(&String::from(&tile.terrain))));
+
+        row.set_child(Some(&layout));
+
+        row
+    }
+}

hex-grid/src/tile.rs

@@ -0,0 +1,108 @@
+use crate::utilities;
+use cairo::Context;
+use gtk::{gdk_pixbuf::Pixbuf, prelude::*};
+use image::DynamicImage;
+
+#[derive(Clone, Debug)]
+pub enum Terrain {
+    Badlands,
+    DeepWater,
+    Desert,
+    Empty,
+    Grasslands,
+    Mountain,
+    ShallowWater,
+    Swamp,
+}
+
+impl Default for Terrain {
+    fn default() -> Self {
+        Self::Empty
+    }
+}
+
+impl From<&str> for Terrain {
+    fn from(s: &str) -> Self {
+        match s {
+            "m" => Self::Mountain,
+            "g" => Self::Grasslands,
+            "sw" => Self::ShallowWater,
+            "dw" => Self::DeepWater,
+            "b" => Self::Badlands,
+            "d" => Self::Desert,
+            "s" => Self::Swamp,
+            _ => Self::Empty,
+        }
+    }
+}
+
+impl From<String> for Terrain {
+    fn from(s: String) -> Self {
+        Self::from(s.as_ref())
+    }
+}
+
+impl From<&Terrain> for String {
+    fn from(t: &Terrain) -> Self {
+        match t {
+            Terrain::Badlands => "Badlands",
+            Terrain::DeepWater => "Deep Water",
+            Terrain::Desert => "Desert",
+            Terrain::Empty => "Empty",
+            Terrain::Grasslands => "Grasslands",
+            Terrain::Mountain => "Mountain",
+            Terrain::ShallowWater => "Shallow Water",
+            Terrain::Swamp => "Swamp",
+        }
+        .to_owned()
+    }
+}
+
+pub struct Tile {
+    pub terrain: Terrain,
+    pub image: Pixbuf,
+}
+
+impl Tile {
+    pub fn new(source: &DynamicImage, terrain: Terrain) -> Tile {
+        let image = match terrain {
+            Terrain::DeepWater => pixbuf_from_image_tile(source.clone().crop(0, 0, 100, 88)),
+            Terrain::ShallowWater => pixbuf_from_image_tile(source.clone().crop(100, 0, 100, 88)),
+            Terrain::Grasslands => pixbuf_from_image_tile(source.clone().crop(200, 0, 100, 88)),
+            Terrain::Desert => pixbuf_from_image_tile(source.clone().crop(300, 0, 100, 88)),
+            Terrain::Mountain => pixbuf_from_image_tile(source.clone().crop(0, 88, 100, 88)),
+            Terrain::Badlands => pixbuf_from_image_tile(source.clone().crop(100, 88, 100, 88)),
+            Terrain::Swamp => pixbuf_from_image_tile(source.clone().crop(0, 176, 100, 88)),
+            Terrain::Empty => pixbuf_from_image_tile(source.clone().crop(300, 176, 100, 88)),
+        };
+
+        Tile { terrain, image }
+    }
+
+    pub fn render_on_context(&self, context: &Context, translate_x: f64, translate_y: f64) {
+        context.save().unwrap();
+        context.append_path(&utilities::hexagon_path(
+            context,
+            translate_x,
+            translate_y,
+            100.,
+            88.,
+        ));
+        context.clip();
+        context.set_source_pixbuf(&self.image, translate_x, translate_y);
+        context.paint().expect("paint should succeed");
+        context.restore().unwrap();
+    }
+}
+
+fn pixbuf_from_image_tile(image: image::DynamicImage) -> Pixbuf {
+    Pixbuf::from_bytes(
+        &glib::Bytes::from(image.as_bytes()),
+        gtk::gdk_pixbuf::Colorspace::Rgb,
+        false,
+        8,
+        image.width() as i32,
+        image.height() as i32,
+        image.to_rgb8().sample_layout().height_stride as i32,
+    )
+}

hex-grid/src/utilities.rs

@@ -0,0 +1,46 @@
+use cairo::{Context, Path};
+
+pub fn hexagon_path(
+    context: &Context,
+    translate_x: f64,
+    translate_y: f64,
+    width: f64,
+    height: f64,
+) -> Path {
+    context.new_path();
+    let points = hexagon(width, height);
+    context.move_to(translate_x + points[0].0, translate_y + points[0].1);
+    context.line_to(translate_x + points[1].0, translate_y + points[1].1);
+    context.line_to(translate_x + points[2].0, translate_y + points[2].1);
+    context.line_to(translate_x + points[3].0, translate_y + points[3].1);
+    context.line_to(translate_x + points[4].0, translate_y + points[4].1);
+    context.line_to(translate_x + points[5].0, translate_y + points[5].1);
+    context.copy_path().expect("to successfully copy a path")
+}
+
+pub fn hexagon(width: f64, height: f64) -> Vec<(f64, f64)> {
+    let center_x = width / 2.;
+    let center_y = height / 2.;
+    let radius = width / 2.;
+
+    vec![
+        (center_x + radius, center_y),
+        (
+            center_x + radius / 2.,
+            center_y + (3. as f64).sqrt() * radius / 2.,
+        ),
+        (
+            center_x - radius / 2.,
+            center_y + (3. as f64).sqrt() * radius / 2.,
+        ),
+        (center_x - radius, center_y),
+        (
+            center_x - radius / 2.,
+            center_y - (3. as f64).sqrt() * radius / 2.,
+        ),
+        (
+            center_x + radius / 2.,
+            center_y - (3. as f64).sqrt() * radius / 2.,
+        ),
+    ]
+}

ifc/Cargo.toml

@@ -6,6 +6,8 @@ authors = ["Savanni D'Gerinel <savanni@luminescent-dreams.com>"]
 edition = "2018"
 keywords = ["date", "time", "calendar"]
 categories = ["date-and-time"]
+license = "GPL-3.0-only"
+license-file = "../COPYING"
 
 [dependencies]
 chrono =        { version = "0.4" }

ifc/src/lib.rs

@@ -1,3 +1,15 @@
+/*
+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/>.
+*/
+
 use chrono::{Datelike, NaiveDate};
 use serde::{Deserialize, Serialize};
 use std::convert::TryInto;

ifc/src/today.rs

@@ -1,3 +1,15 @@
+/*
+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;
 extern crate international_fixed_calendar as IFC;

ifc/src/web.rs

@@ -1,3 +1,15 @@
+/*
+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/>.
+*/
+
 use chrono::{Datelike, Utc};
 use international_fixed_calendar as IFC;
 use iron::headers;

kifu/core-types/Makefile

@@ -0,0 +1,6 @@
+
+SOURCES = $(shell find ../core -name "*.rs")
+dist/index.ts: $(SOURCES)
+	mkdir -p dist
+	typeshare ../core --lang=typescript --output-file=dist/index.ts
+

kifu/core-types/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "core-types",
+  "version": "0.0.1",
+  "description": "",
+  "types": "dist/index.ts",
+  "main": "dist/index.ts",
+  "scripts": {
+    "build": "make",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Savanni D'Gerinel <savanni@luminescent-dreams.com>",
+  "license": "GPL-3.0-or-later"
+}

kifu/core/Cargo.lock

@@ -0,0 +1,591 @@
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kifu/core/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "kifu-core"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+chrono          = { version = "0.4" }
+sgf             = { path = "../../sgf" }
+grid            = { version = "0.9" }
+serde_json      = { version = "1" }
+serde           = { version = "1", features = [ "derive" ] }
+thiserror       = { version = "1" }
+typeshare       = { version = "1" }
+
+[dev-dependencies]
+cool_asserts    = { version = "2" }

kifu/core/Makefile

@@ -0,0 +1,6 @@
+
+test:
+	cargo watch -x 'nextest run'
+
+test-oneshot:
+	cargo nextest run

kifu/core/fixtures/five_games/2019 Masters R7 B1 -- Zhongfan Jian vs. Mark Lee.sgf

@@ -0,0 +1,432 @@
+(;FF[4]
+CA[UTF-8]
+GM[1]
+GN[2019 Masters R7 B1]
+PC[https://online-go.com/review/404377]
+PB[Zhongfan Jian]
+PW[Mark Lee]
+BR[7d]
+WR[7d]
+TM[0]OT[0 none]
+RE[B+R]
+SZ[19]
+KM[7.5]
+RU[AGA]
+C[
+
+-- chat --
+krnzmb: hi
+FrostedNuke: hi
+USGO1: Hello! As most of you know, this is the final round of the US Open Master's division at the US Go Congress between Mark Lee 7d (w) and Zhongfan Jian 7d (b)
+
+]
+
+;B[dp]
+;W[pp]
+;B[dd]
+;W[pd]
+;B[nc]
+;W[fc]
+;B[hc]C[
+
+-- chat --
+snakesss: h16
+BHydden: close
+
+]
+
+;W[cc]
+;B[dc]
+;W[cd]
+;B[de]
+;W[db]C[
+
+-- chat --
+hardstone: Mark Lee is B?
+hardstone: ok, W
+
+]
+
+;B[eb]
+;W[cb]
+;B[fb]
+;W[cf]
+;B[qf]
+;W[pf]
+;B[pg]
+;W[of]
+;B[qd]
+;W[qc]
+;B[qe]
+;W[pb]C[
+
+-- chat --
+MeiGuoTang: crosstabs 
+
+]
+
+;B[og]C[
+
+-- chat --
+MeiGuoTang: please
+
+]
+
+;W[md]
+;B[qn]
+;W[jc]C[
+
+-- chat --
+shipshape: https://www.usgo.org/tournaments/crosstab/band-matrix/187
+snakesss: lol he played the only move i just checked on my bot and saw was a bad one
+snakesss: feels good to have the same bad instinct as a pro
+
+]
+
+;B[nq]
+;W[pn]
+;B[pm]
+;W[on]
+;B[qp]
+;W[gc]C[
+
+-- chat --
+hexahedron: tenuki from the lower right is very interesting
+snakesss: "interesting" like "haylee 
+snakesss: 's interestings"?
+redreoicy: First guess is to make a ladder breaker to play r7
+Cyanriddle: h16 would be simple
+
+]
+
+;B[gd]
+;W[fd]C[
+
+-- chat --
+hexahedron: so black resists the ladder
+
+]
+
+;B[gb]
+;W[hd]C[
+
+-- chat --
+redreoicy: but, i thought white's intention was to follow up a few more moves than just g17 before playing r7
+
+]
+
+;B[id]
+;W[ge]
+;B[ic]
+;W[qm]
+;B[qo]
+;W[pl]C[
+
+-- chat --
+redreoicy: ok g15 makes a lot more sense
+USGO1: Sorry about that, table shook a bit as I placed G15
+BHydden: if you're the pedantic type, you can click onto the wrong move 40 and then click the trashcan :)
+
+]
+
+;B[hf]
+;W[om]
+;B[df]
+;W[cg]
+;B[fg]
+;W[oq]
+;B[qr]
+;W[pr]
+;B[fq]
+;W[pe]
+;B[qi]
+;W[ie]
+;B[jd]
+;W[he]
+;B[mc]C[
+
+-- chat --
+USGO1: Zhongfan put that one down with no small amount of vigor
+BHydden: this area is mine, don't at me
+
+]
+
+;W[hg]
+;B[oc]
+;W[pc]
+;B[ld]
+;W[if]
+;B[jp]C[
+
+-- chat --
+hexahedron: white upper right right not having local live has got to feel annoying for white
+BHydden: eh, he tenukid from an approach... it's to be expected, right?
+
+]
+
+;W[bp]
+;B[cp]
+;W[bo]
+;B[bq]
+;W[br]
+;B[cq]
+;W[cl]C[
+
+-- chat --
+hexahedron: it used to be okay,but black got to dig out the top area while white had to defend the center group
+
+]
+
+;B[dk]
+;W[ck]
+;B[dj]
+;W[dn]
+;B[cn]
+;W[bn]
+;B[dg]
+;W[ho]
+;B[iq]
+;W[dh]
+;B[ch]C[
+
+-- chat --
+BHydden: quiet in here
+hexahedron: friday night, not surprising :)
+BHydden: final round of USGC, who could have more important plans than this? :D
+USGO1: I agree with BHydden:)
+BHydden: ;)
+USGO1: Mark has used more than half his time, now being at 42 minutes
+xed_over: on this one move? :)
+hexahedron: maybe white didn't expect this move by black
+USGO1: I'm not sure about Zhongfan's time left, but he IS 2/3 of the way through a starbucks
+USGO1: I'm now told by our fearless recording leader that Black has an hour and ten minutes left
+
+]
+
+;W[ei]
+;B[bh]
+;W[ce]
+;B[fj]
+;W[ej]
+;B[ek]
+;W[fi]
+;B[di]
+;W[eh]
+;B[gi]
+;W[gj]
+;B[fk]
+;W[gh]
+;B[hi]
+;W[fh]C[
+
+-- chat --
+樱桃花: what's popping
+
+]
+
+;B[bj]
+;W[co]
+;B[ec]
+;W[hj]
+;B[fn]
+;W[aq]
+;B[cr]
+;W[bk]
+;B[ii]
+;W[ij]
+;B[ji]
+;W[jj]
+;B[ki]
+;W[eg]
+;B[kj]
+;W[hl]C[
+
+-- chat --
+Falchion: what did it say the % was at move 114?
+hexahedron: around 95% for black
+Falchion: wow, already that bad
+hexahedron: keep in mind not to trust all these percents too much, we've seen in plenty of games at this tournament that it can swing quite a bit
+hexahedron: bot is assuming superhuman-level tactics, in a sharp position it's very possible for one mistake to swing it all the way back to even
+
+]
+
+;B[dm]
+;W[cm]
+;B[jl]
+;W[jm]
+;B[km]
+;W[jn]
+;B[kn]
+;W[il]
+;B[jk]
+;W[kl]
+;B[kk]C[
+
+-- chat --
+Falchion: last few moves feel good for B
+hexahedron: KG says 97% for B (white lives in the middle, but black got a lot of profit
+hexahedron: )
+hexahedron: and connects his own group on the left in the process
+hexahedron: we'll see what happens though, the tactics are so complicated
+
+]
+
+;W[gn]
+;B[en]
+;W[dl]C[
+
+-- chat --
+Falchion: B would have to mess up pretty badly to throw such an advantage away though
+hexahedron: after the last 3 moves KG is thinking the white group in the middle dies now
+Falchion: ouch, that's even worse
+hexahedron: it's not entirely confident though, territory map shows it as all blackish, but not completely
+
+]
+
+;B[fm]C[
+
+-- chat --
+Zhadow: what is KG?
+
+]
+
+;W[jo]C[
+
+-- chat --
+hexahedron: bot that is around LZ-ELFv2 strength, but with score estimation and territory prediction
+
+]
+
+;B[ko]
+;W[hq]
+;B[in]C[
+
+-- chat --
+hexahedron: oooh black's going for the kill!
+Falchion: J5 here?
+
+]
+
+;W[io]
+;B[gq]C[
+
+-- chat --
+hexahedron: G3 nice
+Falchion: J4 now maybe?
+hexahedron: no, J4 makes no eyeshape
+hexahedron: all it would do is strengthen black and immediately kill any hope of black messing up
+hexahedron: (the only point that J4 could help turn into an eye is H4, but notice how G3 and J3 already make H4 false)
+hexahedron: do you see?
+hexahedron: right, and that would help black
+hexahedron: there's no ko
+hexahedron: the only bit that remains not entirely clear to my lowly amateur reading is the L4 cut aji
+hexahedron: but maybe I"m also missing some other variations
+USGO1: The clock now tells us that Mark has only 10 minutes of main time remaining
+
+]
+
+(;W[fo]C[
+
+-- chat --
+Falchion: G5 then?
+
+]
+
+)(;W[ip]
+;B[jq]
+;W[gr]
+;B[hr]
+;W[ir]
+;B[hp]
+;W[hs]C[
+
+-- chat --
+Falchion: J4 would make B play at K3 probably? 
+Falchion: maybe it sets up a ko
+
+]
+
+)(;W[gp]
+;B[fp]
+;W[kp]C[
+
+-- chat --
+Falchion: hey, he played your L4 cut
+
+]
+
+;B[lp]C[
+
+-- chat --
+hexahedron: ooh maybe white does have something
+
+]
+
+;W[kq]
+;B[lq]C[
+
+-- chat --
+Falchion: hm, not sure it works tho
+
+]
+
+;W[kr]C[
+
+-- chat --
+USGO1: Mark kept his finger on that stone for a long while before releaing and pressing the clock
+
+]
+
+;B[hr]C[
+
+-- chat --
+USGO1: Zhongfan is now down to an eighth of his coffee
+dy_baduk: hmmr
+dy_baduk: j2 might actually be reasonable
+hexahedron: ko?
+
+]
+
+;W[ir]C[
+
+-- chat --
+Falchion: nice dy
+hexahedron: I guess there might be a ko after all :)
+Falchion: I think you found it
+dy_baduk: lol
+dy_baduk: it's cause I do a shit ton of tsumego
+Falchion: wait, what about K2 next, does W still die?
+
+]
+
+(;B[jq]
+;W[ip]
+;B[hp]
+;W[fl]
+;B[go]C[B+r
+
+-- chat --
+Falchion: board is different tho
+USGO1: W resigns
+Falchion: ouch
+hexahedron: congrats to black (zhongfan)
+hexahedron: really nice play at the end
+
+]
+
+)(;B[jr]
+;W[ip]
+;B[is]
+;W[jq]
+;B[ir]
+;W[lr]
+;B[mr]
+;W[lo]C[
+
+-- chat --
+hexahedron: @Falchion - something like this. From move 0: D4 Q4 D16 Q16 O17 F17 H17 C17 D17 C16 D15 D18 E18 C18 F18 C14 R14 Q14 Q13 P14 R16 R17 R15 Q18 P13 N16 R6 K17 O3 Q6 Q7 P6 R4 G17 G16 F16 G18 H16 J16 G15 J17 R7 R5 Q8 H14 P7 D14 C13 F13 P3 R2 Q2 F3 Q15 R11 J15 K16 H15 N17 H13 P17 Q17 M16 J14 K4 B4 C4 B5 B3 B2 C3 C8 D9 C9 D10 D6 C6 B6 D13 H5 J3 D12 C12 E11 B12 C15 F10 E10 E9 F11 D11 E12 G11 G10 F9 G12 H11 F12 B10 C5 E17 H10 F6 A3 C2 B9 J11 J10 K11 K10 L11 E13 L10 H8 D7 C7 K8 K7 L7 K6 L6 J8 K9 L8 L9 G6 E6 D8 F7 K5 L5 H3 J6 J5 G3 G4 F4 L4 M4 L3 M3 L2 H2 J2 K2 J4 J1 K3 J2 M2 N2 M5 
+Falchion: yeah
+
+]
+
+)))

kifu/core/fixtures/five_games/2019 Masters R7 B2 -- Eric Lui vs. Nyu Eiko.sgf

@@ -0,0 +1,499 @@
+(;FF[4]
+CA[UTF-8]
+GM[1]
+GN[2019 Masters R7 B2]
+PC[https://online-go.com/review/404376]
+PB[Eric Lui]
+PW[Nyu Eiko]
+BR[1p]
+WR[2p]
+TM[0]OT[0 none]
+RE[W+r]
+SZ[19]
+KM[7.5]
+RU[AGA]
+C[
+
+-- chat --
+dogbert: when will the game start?
+USGO2: in approximately 15 minutes
+USGO2: After the ceremonies the game should begin any minute now
+USGO2: Putting phones into the designated bins
+USGO2: TD Josh Lee yells out "2 minutes"
+USGO2: Both players have sat, game should begin soon
+
+]
+
+;B[pd]
+;W[dd]
+;B[pq]
+;W[dp]
+;B[qk]
+;W[nc]
+;B[pf]
+;W[qc]
+;B[pc]
+;W[pb]
+;B[qd]
+;W[rb]
+;B[rc]
+;W[qb]
+;B[fq]C[
+
+-- chat --
+BHydden: wow lightning opening
+
+]
+
+;W[cn]
+;B[lp]
+;W[hq]
+;B[fo]C[
+
+-- chat --
+mark5000: This is a traditional and well-studied opening pattern, if you excuse the 2016-era joseki in the upper left.
+
+]
+
+;W[jp]C[
+
+-- chat --
+BHydden: looks at upper left... sees lonely isolated 4-4 stone... yes, such joseki o.o
+mark5000: Ha, which one is left again? ;)
+mark5000: It's been a long day.
+
+]
+
+;B[dm]C[
+
+-- chat --
+BHydden: if you hold up both your hands, the left one can make an L between index and thumb with palm facing away from you ;)
+
+]
+
+;W[dn]
+;B[em]
+;W[en]C[
+
+-- chat --
+pyv: I thought you were referring to the fact that noone went 3-3 yet
+pyv: as an old joseki
+
+]
+
+;B[fn]
+;W[fm]C[
+
+-- chat --
+BHydden: i accept that it was a standard and well known pattern... but I'm still not used to pros putting stones on the board that quickly :P
+BHydden: we had a move 8 3-3 so they can hold off a bit on the other one ;)
+USGO2: Nyu dug into her purse and got out what appeared to be a piece of gum or a breathmint
+BHydden: for herself or as a subtle insult to her opponent to throw Eric off his game?
+
+]
+
+;B[gm]
+;W[fl]C[
+
+-- chat --
+USGO2: For herself as far as i can tell
+
+]
+
+;B[kn]
+;W[hn]
+;B[gn]
+;W[jn]
+;B[km]
+;W[il]C[
+
+-- chat --
+Аlрhа - 1 5 2: Hmm, I wonder if saving f5 worth W extending f8.
+
+]
+
+;B[dr]
+;W[cq]C[
+
+-- chat --
+Аlрhа - 1 5 2: Or can B live in the lower left somehow?
+
+]
+
+;B[im]C[
+
+-- chat --
+USGO2: Eric has almost played a move a few times now but always puts the stone back in the bowl. but finally committed to this one
+USGO2: then steps out of the room
+
+]
+
+;W[hm]C[
+
+-- chat --
+BHydden: ominous
+USGO2: Nyu's focus has completely unwavered meanwhile
+USGO2: Eric has returned
+
+]
+
+;B[gl]
+;W[fk]
+;B[jm]
+;W[hl]
+;B[gk]
+;W[fj]C[
+
+-- chat --
+unholysix1: white must feel pretty confident about living along the bottom 
+
+]
+
+;B[gj]
+;W[fi]C[
+
+-- chat --
+Аlрhа - 1 5 2: B f5 is not out of the woods yet tho...
+unholysix1: pretty close to being out of them 
+
+]
+
+;B[in]
+;W[ho]C[
+
+-- chat --
+unholysix1: ohh neat
+Аlрhа - 1 5 2: W can still harras that group to help save h5 if h5 can't live at the bottom.
+
+]
+
+;B[kq]C[
+
+-- chat --
+unholysix1: hmm... I thought b had to deend the f4 cut after white's move. guess not
+
+]
+
+;W[ij]
+;B[jk]
+;W[hj]
+;B[gi]
+(;W[fh]C[
+
+-- chat --
+Аlрhа - 1 5 2: I think f4 cut douesn't work because of W's h4 aji.
+unholysix1: no i just misread it. b has a sequence to make it fail
+
+]
+
+;B[gh]C[
+
+-- chat --
+unholysix1: that one seems to work
+unholysix1: white just relentlessly takes that 6 line territory.  fun stuff
+
+]
+
+;W[ih]C[
+
+-- chat --
+USGO2: Eric has used 40 minutes so far. Deducting from the start of the game, that means Nyu has used maybe 10 or so minutes
+USGO2: Can't see Nyu's time unless Eric checks it
+
+]
+
+;B[hg]C[
+
+-- chat --
+Аlрhа - 1 5 2: Looks like B is determined to kill h5 no matter the cost.
+
+]
+
+;W[ki]C[
+
+-- chat --
+unholysix1: whites like sorry, noly need one eye and now i've got stones to connect to
+
+]
+
+;B[cf]C[
+
+-- chat --
+Аlрhа - 1 5 2: Hmm.
+
+]
+
+;W[ce]
+;B[df]C[
+
+-- chat --
+unholysix1: so cool. :-D
+
+]
+
+;W[gg]C[
+
+-- chat --
+Аlрhа - 1 5 2: B doesn't need to connect at h12 I think. He can kill f12 if he cuts.
+
+]
+
+(;B[hh]C[
+
+-- chat --
+unholysix1: c8 net. 6 libs w to 3 for b
+
+]
+
+;W[ee]C[
+
+-- chat --
+unholysix1: ok b cuts w extend im guessing you want b to e13? i play c8 net
+unholysix1: doe
+unholysix1: er done
+
+]
+
+;B[cj]C[
+
+-- chat --
+unholysix1: now hes using your plan haha
+unholysix1: only net still works
+Аlрhа - 1 5 2: He's not going for the kill tho.
+unholysix1: hes trying to live
+
+]
+
+;W[bk]C[
+
+-- chat --
+unholysix1: thats most of whites points so far. its huge if he pulls it off
+USGO2: Eric slips on his jacket. Despite it being almost 100F today its fairly ccomfortable in the strong players room
+
+]
+
+;B[bj]
+;W[di]C[
+
+-- chat --
+Аlрhа - 1 5 2: d9?
+unholysix1: And the heat is on black in this game! :-P
+
+]
+
+;B[ch]
+;W[be]
+;B[bf]C[
+
+-- chat --
+unholysix1: she still chewing that gum?
+USGO2: I never saw a chewing motion so i assume it was a mint instead of gum
+unholysix1: ooohhhh that explains a lot
+USGO2: I think this is the longest she has spent on a move so far
+unholysix1: this is exciting.  
+
+]
+
+;W[gf]C[
+
+-- chat --
+unholysix1: wow.  make a move and save those if you want. I'll just trap this string
+
+]
+
+;B[dh]
+;W[jf]C[
+
+-- chat --
+unholysix1: !
+
+]
+
+;B[jh]
+;W[ii]C[
+
+-- chat --
+Falchion: the B stick is contained and needs to find 2 eyes, right?
+
+]
+
+;B[hr]
+;W[gp]
+;B[gq]C[
+
+-- chat --
+unholysix1: thats the way it is
+
+]
+
+;W[fp]C[
+
+-- chat --
+unholysix1: he just traded the tail for the rest
+aesalon: fat tail
+unholysix1: for sure
+
+]
+
+;B[kh]
+;W[lh]C[
+
+-- chat --
+USGO2: Nyu leaves the room
+
+]
+
+;B[lg]C[
+
+-- chat --
+USGO2: and returns
+
+]
+
+;W[kg]
+;B[he]C[
+
+-- chat --
+USGO2: Eric dropped the stone onto the board but fortunately it fell into an empty area
+unholysix1: This looks like making it worse to me.
+
+]
+
+;W[jg]
+;B[hf]
+;W[id]C[
+
+-- chat --
+S_Alexander: white feels good?
+Falchion: ya, think so
+Falchion: B is going to have to make a huge territory on the right side to even it up
+
+]
+
+;B[hd]C[
+
+-- chat --
+unholysix1: I mean what black's doing, it would work on me 100%
+
+]
+
+;W[ic]
+;B[fg]
+;W[ff]
+;B[eg]
+;W[dl]
+;B[ec]
+;W[dc]
+;B[db]
+;W[cb]C[
+
+-- chat --
+Nova Luna: ko. From move 0: Q16 D16 Q3 D4 R9 O17 Q14 R17 Q17 Q18 R16 S18 S17 R18 F3 C6 M4 H3 F5 K4 D7 D6 E7 E6 F6 F7 G7 F8 L6 H6 G6 K6 L7 J8 D2 C3 J7 H7 G8 F9 K7 H8 G9 F10 G10 F11 J6 H5 L3 J10 K9 H10 G11 F12 G12 J12 H13 L11 C14 C15 D14 G13 H12 E15 C10 B9 B10 D11 C12 B15 B14 G14 D12 K14 K12 J11 H2 G4 G3 F4 L12 M12 M13 L13 H15 K13 H14 J16 H16 J17 F13 F14 E13 D8 E17 D17 D18 C18 
+Zhadow: where
+Zhadow: cant white G17 if black F18
+Zhadow: ?
+unholysix1: could he be thinking of e18 and just maing whte play a defensive move in the corner? he has a couple of forcing moves around the cut points?
+USGO2: Eric has 10 minutes main time left. Nyu has approximately 50
+mekriff 白金花: Anybody got a win rate?
+
+]
+
+;B[fe]
+;W[ge]
+;B[fd]
+;W[ef]
+;B[fb]
+;W[eh]
+;B[dg]
+;W[gd]C[
+
+-- chat --
+USGO2: Given the info that Mark Lee lost on board 1, if Nyu wins this game she will very likely be the Masters winner
+aesalon: Yeah
+
+]
+
+;B[gc]C[
+
+-- chat --
+aesalon: and it looks near impossible for W to lose
+
+]
+
+;W[bc]
+;B[hc]
+;W[bg]C[
+
+-- chat --
+USGO2: Nyu steps across the room to refill her cup of water. Theres many water coolers in this building which is great given the heat this week
+unholysix1: so at this point leela says white is winning 90% and the black group is dead
+Zhadow: which one, left side or the stick
+unholysix1: left side although there are variations where the stick dies instead
+
+]
+
+;B[ae]C[
+
+-- chat --
+unholysix1: it also expects fighting to start soon with an invasion around the Q3 stone
+
+]
+
+;W[ad]
+;B[bl]
+;W[ck]
+;B[cm]
+;W[bm]C[
+
+-- chat --
+USGO2: Eric has entered byo yomi. 5 periods of 30 seconds
+
+]
+
+;B[bn]C[
+
+-- chat --
+unholysix1: wow now it wants black to pla d15, w e16 b c16 and white take the f16 stones.  b lives on the side the string dies
+aesalon: It's difficult to parse bot variations when it's so lopsided
+
+]
+
+;W[am]
+;B[al]
+;W[cl]
+;B[an]
+;W[bm]
+;B[ak]
+;W[el]C[W+Resign
+
+-- chat --
+USGO2: 4 periods left
+USGO2: 3 periods left
+USGO2: Eric shuts off the clock. White wins the game. Thanks for watching!
+savanni.dgerinel: Thank you for transcribing!
+S_Alexander: gg
+
+]
+
+)(;B[fg]
+;W[gf]
+;B[dk]C[
+
+-- chat --
+Аlрhа - 1 5 2: ?. From move 0: Q16 D16 Q3 D4 R9 O17 Q14 R17 Q17 Q18 R16 S18 S17 R18 F3 C6 M4 H3 F5 K4 D7 D6 E7 E6 F6 F7 G7 F8 L6 H6 G6 K6 L7 J8 D2 C3 J7 H7 G8 F9 K7 H8 G9 F10 G10 F11 J6 H5 L3 J10 K9 H10 G11 F12 G12 J12 H13 L11 C14 C15 D14 G13 F13 G14 D9 
+
+]
+
+))(;W[fp]
+;B[ep]
+;W[gp]
+;B[eo]
+;W[eq]
+;B[dq]C[
+
+-- chat --
+Аlрhа - 1 5 2: this one?. From move 0: Q16 D16 Q3 D4 R9 O17 Q14 R17 Q17 Q18 R16 S18 S17 R18 F3 C6 M4 H3 F5 K4 D7 D6 E7 E6 F6 F7 G7 F8 L6 H6 G6 K6 L7 J8 D2 C3 J7 H7 G8 F9 K7 H8 G9 F10 G10 F11 J6 H5 L3 J10 K9 H10 G11 F4 E4 G4 E5 E3 D3 
+
+]
+
+))

kifu/core/fixtures/five_games/2019 Masters R7 B3 -- Alan Huang vs. Yongfei Ge.sgf

@@ -0,0 +1,395 @@
+(;FF[4]
+CA[UTF-8]
+GM[1]
+GN[2019 Masters R7 B3]
+PC[https://online-go.com/review/404375]
+PB[Alan Huang]
+PW[Yongfei Ge]
+BR[7d]
+WR[7d]
+TM[0]OT[0 none]
+RE[B+7.5]
+SZ[19]
+KM[7.5]
+RU[AGA]
+C[
+
+-- chat --
+USGO3: Welcome to Round 7 of the US Masters.  This is the last round.  This is table 3.
+
+]
+
+;B[pd]
+;W[dc]
+;B[qp]
+;W[dq]
+;B[np]
+;W[nc]
+;B[qf]
+;W[pc]
+;B[qc]
+;W[qb]
+;B[oc]
+;W[pb]
+;B[od]
+;W[ob]
+;B[nd]
+;W[mc]
+;B[ce]
+;W[dh]
+;B[co]
+;W[cl]
+;B[ep]
+;W[dp]
+;B[do]
+;W[eo]
+;B[eq]
+;W[er]
+;B[fr]
+;W[dr]
+;B[en]
+;W[fo]
+;B[gp]
+;W[dn]
+;B[cn]
+;W[dm]
+;B[gn]
+;W[fn]
+;B[fm]
+;W[em]
+;B[go]
+;W[fl]
+;B[gm]
+;W[bp]
+;B[pk]C[
+
+-- chat --
+redreoicy: Go Alan! I'm sure AI prefers black here :)
+
+]
+
+;W[lq]
+;B[lp]
+;W[kp]
+;B[lo]
+;W[nq]
+;B[oq]
+;W[mr]
+;B[or]
+;W[ko]
+;B[ln]
+;W[iq]
+;B[kn]
+;W[hr]
+;B[dd]C[
+
+-- chat --
+USGO3: The game has been underway for about 30 minutes...B has used about 19 minutes.
+
+]
+
+;W[ec]
+;B[cc]
+;W[cb]
+;B[bb]
+;W[bc]
+;B[bd]
+;W[cd]
+;B[kr]C[
+
+-- chat --
+redreoicy: Good part about that joseki in lower left is that it leaves so many easy threats
+
+]
+
+;W[kq]
+;B[cc]
+;W[qi]
+;B[qj]
+;W[oi]
+;B[mi]
+;W[qg]
+;B[pf]
+;W[rj]
+;B[rk]
+;W[rf]
+;B[rh]
+;W[pj]
+;B[qk]
+;W[rg]
+;B[rd]
+;W[ri]
+;B[ph]C[
+
+-- chat --
+USGO3: About 1 hour into the game...B has used 39 minutes of time
+
+]
+
+;W[pg]
+;B[oh]
+;W[og]
+;B[nh]
+;W[qh]
+;B[md]
+;W[re]
+;B[lc]
+;W[rc]
+;B[qd]
+;W[sd]
+;B[ac]
+;W[hc]
+;B[lb]
+;W[mb]
+;B[ma]
+;W[nb]
+;B[ke]
+;W[pi]
+;B[nk]
+;W[nj]
+;B[mj]C[
+
+-- chat --
+Falchion: B needs to play F4 at some point, no? It's forcing too
+
+]
+
+;W[gk]
+;B[cj]C[
+
+-- chat --
+USGO3: 90 minutes in...B has used 52 minutes
+
+]
+
+;W[ci]
+;B[dj]
+;W[fi]
+;B[bj]
+;W[bk]C[
+
+-- chat --
+Falchion: is that B group just going to die? jumping in like that was pretty risky
+
+]
+
+;B[bh]
+;W[gh]C[
+
+-- chat --
+Falchion: guess it lives, but low, and W wasn't reduced very much
+
+]
+
+;B[ek]
+;W[el]
+;B[hi]
+;W[gj]
+;B[ik]
+;W[hh]
+;B[ii]
+;W[ih]
+;B[ed]
+;W[fd]C[
+
+-- chat --
+Zhadow: how much time does each player have left?
+USGO3: B has 21 min
+
+]
+
+;B[ni]C[
+
+-- chat --
+USGO3: They have been playing 117 minutes
+USGO3: I will let you do the math for W
+Zhadow: thanks
+
+]
+
+;W[kg]
+;B[ic]
+;W[id]
+;B[jc]
+;W[hb]
+;B[jr]
+;W[gr]
+;B[fs]
+;W[io]
+;B[jn]
+;W[gq]
+;B[fq]
+;W[hp]
+;B[fp]
+;W[en]
+;B[jo]
+;W[jp]
+;B[ir]
+;W[gs]
+;B[ho]
+;W[in]
+;B[im]
+;W[is]
+;B[fe]
+;W[gd]
+;B[db]
+;W[eb]
+;B[ca]
+;W[jd]
+;B[kd]
+;W[jb]C[
+
+-- chat --
+USGO3: B has 10 minutes basic time left
+
+]
+
+;B[mf]
+;W[sk]
+;B[sl]
+;W[sj]
+;B[ql]
+;W[bi]
+;B[ai]
+;W[ch]
+;B[bg]
+;W[ib]
+;B[jh]
+;W[jg]
+;B[kh]
+;W[ok]
+;B[ol]
+;W[oj]
+;B[mk]
+;W[nr]
+;B[os]
+;W[lg]
+;B[ng]
+;W[lh]
+;B[li]
+;W[ge]
+;B[ff]
+;W[df]
+;B[cf]
+;W[dg]
+;B[fg]
+;W[fh]
+;B[de]
+;W[je]
+;B[ei]
+;W[eh]
+;B[rb]
+;W[sc]
+;B[se]
+;W[sf]
+;B[ra]
+;W[sb]
+;B[na]
+;W[qa]
+;B[ea]
+;W[fb]
+;B[kf]
+;W[jf]C[
+
+-- chat --
+USGO3: B in  byomi
+
+]
+
+;B[gf]
+;W[hf]
+;B[of]
+;W[kc]
+;B[hn]
+;W[ns]
+;B[mp]
+;W[ls]
+;B[ip]
+;W[io]
+;B[lr]
+;W[mq]
+;B[js]
+;W[jq]
+;B[hs]
+;W[hq]
+;B[cp]
+;W[cq]
+;B[ds]
+;W[br]
+;B[es]
+;W[cs]
+;B[kb]
+;W[jc]
+;B[hk]
+;W[hj]
+;B[ij]
+;W[gl]
+;B[hl]
+;W[ak]
+;B[aj]
+;W[qe]
+;B[ck]
+;W[bl]
+;B[gg]
+;W[pe]
+;B[oe]
+;W[lf]
+;B[le]
+;W[fa]
+;B[da]
+;W[hg]
+;B[oa]
+;W[sa]
+;B[cg]
+;W[ja]
+;B[la]
+;W[is]
+;B[in]
+;W[ks]
+;B[ip]
+;W[rm]
+;B[rl]
+;W[io]
+;B[bs]
+;W[as]
+;B[ip]
+;W[pm]
+;B[pl]
+;W[io]
+;B[ej]
+;W[dl]
+;B[ip]
+;W[op]
+;B[pq]
+;W[io]
+;B[ee]
+;W[ip]
+;B[ah]
+;W[fj]
+;B[mg]
+;W[mh]
+;B[ld]
+;W[ka]
+;B[dk]
+;W[di]
+;B[pa]
+;W[eg]
+;B[ef]
+;W[fk]
+;B[gi]
+;W[]C[
+
+-- chat --
+USGO3: Counting
+
+]
+
+;B[]
+;W[]C[B+7.5
+
+-- chat --
+USGO3: B wins
+
+]
+
+)

kifu/core/fixtures/five_games/2022.10.05.sgf

@@ -0,0 +1,224 @@
+(;FF[4]GM[1]AP[gobandroid:0]SZ[19]GN[Kat vs. Savanni]DT[2022-10-05]PB[Kat]PW[Savanni]BR[10k]WR[10k]KM[6.5]RE[W+15.5]
+;B[dp]
+;W[pd]
+;B[qp]
+;W[cd]
+;B[oq]
+;W[fd]
+;B[qf]
+;W[qh]
+(;B[pf]
+)(;B[of]
+;W[nd]
+;B[mf]
+;W[pk]
+;B[ql]
+;W[qk]
+;B[cj]
+;W[jp]
+;B[hq]
+;W[le]
+;B[jc]
+;W[lc]
+;B[gc]
+;W[fc]
+;B[qd]
+;W[qc]
+;B[rd]
+;W[rc]
+;B[pe]
+;W[od]
+;B[ri]
+;W[qi]
+;B[rh]
+;W[di]
+;B[dl]
+;W[ci]
+;B[lp]
+;W[jn]
+;B[hn]
+;W[cq]
+;B[dq]
+;W[cp]
+;B[co]
+;W[bo]
+;B[cn]
+;W[bn]
+;B[cm]
+;W[dr]
+;B[er]
+;W[cr]
+;B[fq]
+;W[ln]
+;B[nm]
+;W[nk]
+;B[ol]
+;W[ok]
+;B[lk]
+;W[ng]
+;B[nf]
+;W[mj]
+;B[ml]
+;W[pl]
+;B[qm]
+;W[om]
+;B[nn]
+;W[nl]
+;B[mm]
+;W[kl]
+;B[hk]
+;W[ho]
+;B[io]
+;W[in]
+;B[ip]
+;W[hm]
+;B[gn]
+;W[jo]
+;B[jq]
+;W[mp]
+;B[np]
+;W[mo]
+;B[no]
+;W[kq]
+;B[jr]
+;W[mq]
+;B[hf]
+;W[ff]
+;B[lf]
+;W[jd]
+;B[ic]
+;W[jf]
+;B[jk]
+;W[kk]
+;B[fk]
+;W[kr]
+;B[nr]
+;W[mr]
+;B[lj]
+;W[mi]
+;B[li]
+;W[jh]
+;B[ji]
+;W[lg]
+;B[hl]
+;W[dj]
+;B[ck]
+;W[fj]
+;B[jl]
+;W[ll]
+;B[mk]
+;W[jm]
+;B[gm]
+;W[gh]
+;B[hi]
+;W[hd]
+;B[hc]
+;W[hh]
+;B[fi]
+;W[fh]
+;B[ei]
+;W[eh]
+;B[ej]
+;W[ek]
+;B[gj]
+;W[gi]
+;B[fj]
+;W[dk]
+;B[el]
+;W[pg]
+;B[dh]
+;W[ch]
+;B[dg]
+;W[cf]
+;B[mg]
+;W[og]
+;B[kb]
+;W[lb]
+;B[fb]
+;W[eb]
+;B[gb]
+;W[ec]
+;B[ig]
+;W[ih]
+;B[kf]
+;W[kg]
+;B[je]
+;W[ie]
+;B[ke]
+;W[if]
+;B[id]
+;W[gd]
+;B[ld]
+;W[md]
+;B[me]
+;W[pm]
+;B[qn]
+;W[rj]
+;B[rg]
+;W[rl]
+;B[rm]
+;W[bj]
+;B[bk]
+;W[cg]
+;B[bi]
+;W[bh]
+;B[aj]
+;W[mh]
+;B[kc]
+;W[kj]
+;B[pn]
+;W[on]
+;B[oo]
+;W[jj]
+;B[ij]
+;W[ki]
+;B[lh]
+;W[ii]
+;B[hj]
+;W[lm]
+;B[im]
+;W[ns]
+;B[os]
+;W[ms]
+;B[bm]
+;W[bp]
+;B[la]
+;W[ma]
+;B[ka]
+;W[mb]
+;B[sk]
+;W[sl]
+;B[sj]
+;W[rk]
+;B[si]
+;W[sm]
+;B[sn]
+;W[js]
+;B[ir]
+;W[is]
+;B[hs]
+;W[ks]
+;B[ea]
+;W[da]
+;B[fa]
+;W[db]
+;B[sc]
+;W[sb]
+;B[sd]
+;W[rb]
+;B[ds]
+;W[cs]
+;B[es]
+;W[nq]
+;B[or]
+;W[am]
+;B[al]
+;W[an]
+;B[kh]
+;W[jg]
+;B[ah]
+;W[ag]
+;B[ai]
+;W[qg]
+;B[pf]
+))

kifu/core/fixtures/five_games/Steve vs savanni 2023.04.20.sgf

@@ -0,0 +1,179 @@
+(;FF[4]GM[1]AP[gobandroid:0]SZ[19]DT[2023-04-19]PB[Steve]PW[Savanni]KM[6.5]
+;B[dd]
+;W[pp]
+;B[pd]
+;W[dp]
+;B[qn]
+;W[qo]
+;B[pn]
+;W[np]
+;B[qj]
+;W[cf]
+;B[fc]
+;W[cd]
+;B[cc]
+;W[bc]
+;B[cb]
+;W[bb]
+;B[ce]
+;W[bd]
+;B[de]
+;W[be]
+;B[df]
+;W[cg]
+;B[ck]
+;W[dg]
+;B[cn]
+;W[co]
+;B[bn]
+;W[en]
+;B[ek]
+;W[ef]
+;B[ee]
+;W[db]
+;B[dc]
+;W[ca]
+;B[eb]
+;W[da]
+;B[ge]
+;W[ff]
+;B[fe]
+;W[dj]
+;B[bo]
+;W[bp]
+;B[di]
+;W[dk]
+;B[cj]
+;W[dl]
+;B[cl]
+;W[ei]
+;B[ci]
+;W[eh]
+;B[ej]
+;W[el]
+;B[fm]
+;W[gn]
+;B[do]
+;W[cp]
+;B[dn]
+;W[eo]
+;B[em]
+;W[fl]
+;B[gk]
+;W[gl]
+;B[gm]
+;W[hm]
+;B[fn]
+;W[fo]
+;B[dm]
+;W[hl]
+;B[go]
+;W[hn]
+;B[gp]
+;W[ep]
+;B[gq]
+;W[ip]
+;B[er]
+;W[dr]
+;B[iq]
+;W[jq]
+;B[ir]
+;W[jr]
+;B[hp]
+;W[jp]
+;B[eq]
+;W[dq]
+;B[fp]
+;W[br]
+;B[ds]
+;W[cs]
+;B[es]
+;W[nn]
+;B[nj]
+;W[nc]
+;B[lc]
+;W[qc]
+;B[pc]
+;W[qd]
+;B[qe]
+;W[pb]
+;B[ob]
+;W[qb]
+;B[oc]
+;W[nb]
+;B[oa]
+;W[pe]
+;B[oe]
+;W[pf]
+;B[of]
+;W[pg]
+;B[re]
+;W[sc]
+;B[nd]
+;W[kd]
+;B[kc]
+;W[jd]
+;B[ic]
+;W[md]
+;B[mc]
+;W[ne]
+;B[od]
+;W[me]
+;B[og]
+;W[oh]
+;B[ph]
+;W[qh]
+;B[pi]
+;W[rf]
+;B[qg]
+;W[qf]
+;B[rg]
+;W[rd]
+;B[sf]
+;W[mg]
+;B[nh]
+;W[om]
+;B[ql]
+;W[mh]
+;B[mi]
+;W[li]
+;B[lj]
+;W[kj]
+;B[lh]
+;W[ki]
+;B[lg]
+;W[ng]
+;B[oi]
+;W[lk]
+;B[mf]
+;W[nf]
+;B[lf]
+;W[ld]
+;B[jg]
+;W[hf]
+;B[ie]
+;W[id]
+;B[hd]
+;W[jc]
+;B[jb]
+;W[ib]
+;B[hb]
+;W[kb]
+;B[lb]
+;W[ja]
+;B[na]
+;W[hc]
+;B[gc]
+;W[he]
+;B[gd]
+;W[ic]
+;B[ha]
+;W[if]
+;B[je]
+;W[ih]
+;B[ke]
+;W[kh]
+;B[le]
+;W[kg]
+;B[ia]
+)

kifu/core/src/api.rs

@@ -0,0 +1,143 @@
+use crate::{
+    types::{AppState, GameState, Player, Rank},
+    ui::{home, playing_field, HomeView, PlayingFieldView},
+    Config, DatabasePath,
+};
+use serde::{Deserialize, Serialize};
+use std::sync::{Arc, RwLock};
+use typeshare::typeshare;
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+#[serde(tag = "type", content = "content")]
+pub enum CoreRequest {
+    CreateGame(CreateGameRequest),
+    Home,
+    PlayingField,
+    PlayStone(PlayStoneRequest),
+    StartGame,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub struct PlayStoneRequest {
+    pub column: u8,
+    pub row: u8,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub struct CreateGameRequest {
+    pub black_player: PlayerInfoRequest,
+    pub white_player: PlayerInfoRequest,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub enum PlayerInfoRequest {
+    Hotseat(HotseatPlayerRequest),
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub struct HotseatPlayerRequest {
+    pub name: String,
+    pub rank: Option<String>,
+}
+
+impl From<HotseatPlayerRequest> for Player {
+    fn from(p: HotseatPlayerRequest) -> Self {
+        Self {
+            name: p.name,
+            rank: p.rank.and_then(|r| Rank::try_from(r.as_ref()).ok()),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+#[serde(tag = "type", content = "content")]
+pub enum CoreResponse {
+    HomeView(HomeView),
+    PlayingFieldView(PlayingFieldView),
+}
+
+#[derive(Clone, Debug)]
+pub struct CoreApp {
+    config: Config,
+    state: Arc<RwLock<AppState>>,
+}
+
+impl CoreApp {
+    pub fn new(config_path: std::path::PathBuf) -> Self {
+        println!("config_path: {:?}", config_path);
+        let config = Config::from_path(config_path).expect("configuration to open");
+
+        let db_path: DatabasePath = config.get();
+        let state = Arc::new(RwLock::new(AppState::new(db_path)));
+
+        println!("config: {:?}", config);
+        println!("games database: {:?}", state.read().unwrap().database.len());
+
+        Self { config, state }
+    }
+
+    pub async fn dispatch(&self, request: CoreRequest) -> CoreResponse {
+        match request {
+            /*
+            CoreRequest::LaunchScreen => {
+                let app_state = self.state.read().unwrap();
+
+                At launch, I want to either show a list of games in progress, the current game, or the game creation screen.
+                - if a live game is in progress, immmediately go to that game. Such a game will be classified at game creation, so it should be persisted to the state.
+                - if no live games are in progress, but there are slow games in progress, show a list of the slow games and let the player choose which one to jump into.
+                - if no games are in progress, show only the game creation screen
+                - game creation menu should be present both when there are only slow games and when there are no games
+                - the UI returned here will always be available in other places, such as when the user is viewing a game and wants to return to this page
+
+                For the initial version, I want only to show the game creation screen. Then I will backtrack record application state so that the only decisions can be made.
+            }
+            */
+            CoreRequest::CreateGame(create_request) => {
+                let mut app_state = self.state.write().unwrap();
+                let white_player = {
+                    match create_request.white_player {
+                        PlayerInfoRequest::Hotseat(request) => Player::from(request),
+                    }
+                };
+                let black_player = {
+                    match create_request.black_player {
+                        PlayerInfoRequest::Hotseat(request) => Player::from(request),
+                    }
+                };
+                app_state.game = Some(GameState {
+                    white_player,
+                    black_player,
+                    ..GameState::new()
+                });
+                let game_state = app_state.game.as_ref().unwrap();
+                CoreResponse::PlayingFieldView(playing_field(game_state))
+            }
+            CoreRequest::Home => {
+                CoreResponse::HomeView(home(self.state.read().unwrap().database.all_games()))
+            }
+            CoreRequest::PlayingField => {
+                let app_state = self.state.read().unwrap();
+                let game = app_state.game.as_ref().unwrap();
+                CoreResponse::PlayingFieldView(playing_field(game))
+            }
+            CoreRequest::PlayStone(request) => {
+                let mut app_state = self.state.write().unwrap();
+                app_state.place_stone(request);
+
+                let game = app_state.game.as_ref().unwrap();
+                CoreResponse::PlayingFieldView(playing_field(game))
+            }
+            CoreRequest::StartGame => {
+                unimplemented!()
+            }
+        }
+    }
+
+    pub async fn run(&self) {}
+}

kifu/core/src/board.rs

@@ -0,0 +1,633 @@
+use crate::{BoardError, Color, Size};
+use std::collections::HashSet;
+
+#[derive(Clone, Debug)]
+pub struct Board {
+    pub size: Size,
+    pub groups: Vec<Group>,
+}
+
+impl std::fmt::Display for Board {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        write!(f, "   ")?;
+        // for c in 'A'..'U' {
+        for c in 0..19 {
+            write!(f, "{:2}", c)?;
+        }
+        writeln!(f, "")?;
+
+        for row in 0..self.size.height {
+            write!(f, " {:2}", row)?;
+            for column in 0..self.size.width {
+                match self.stone(&Coordinate { column, row }) {
+                    None => write!(f, " .")?,
+                    Some(Color::Black) => write!(f, " X")?,
+                    Some(Color::White) => write!(f, " O")?,
+                }
+            }
+            writeln!(f, "")?;
+        }
+        Ok(())
+    }
+}
+
+impl PartialEq for Board {
+    fn eq(&self, other: &Self) -> bool {
+        if self.size != other.size {
+            return false;
+        }
+
+        for group in self.groups.iter() {
+            if !other.groups.contains(&group) {
+                return false;
+            }
+        }
+        for group in other.groups.iter() {
+            if !self.groups.contains(&group) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+
+impl Board {
+    pub fn new() -> Self {
+        Self {
+            size: Size {
+                width: 19,
+                height: 19,
+            },
+            groups: Vec::new(),
+        }
+    }
+
+    pub fn from_coordinates(
+        mut coordinates: impl Iterator<Item = (Coordinate, Color)>,
+    ) -> Result<Self, BoardError> {
+        coordinates.try_fold(Self::new(), |board, (coordinate, color)| {
+            board.place_stone(coordinate, color)
+        })
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Hash, Eq)]
+pub struct Coordinate {
+    pub column: u8,
+    pub row: u8,
+}
+
+impl Board {
+    pub fn place_stone(mut self, coordinate: Coordinate, color: Color) -> Result<Self, BoardError> {
+        if let Some(_) = self.stone(&coordinate) {
+            return Err(BoardError::InvalidPosition);
+        }
+
+        let mut friendly_group = self
+            .adjacencies(&coordinate)
+            .into_iter()
+            .filter(|c| self.stone(c) == Some(color))
+            .filter_map(|c| self.group(&c).map(|g| g.coordinates.clone()))
+            .fold(HashSet::new(), |acc, set| {
+                acc.union(&set).cloned().collect()
+            });
+
+        friendly_group.insert(coordinate.clone());
+
+        self.groups
+            .retain(|g| g.coordinates.is_disjoint(&friendly_group));
+        let friendly_group = Group {
+            color,
+            coordinates: friendly_group,
+        };
+        self.groups.push(friendly_group.clone());
+
+        let adjacent_groups = self.adjacent_groups(&friendly_group);
+        for group in adjacent_groups {
+            if self.liberties(&group) == 0 {
+                self.remove_group(&group);
+            }
+        }
+
+        if self.liberties(&friendly_group) == 0 {
+            return Err(BoardError::SelfCapture);
+        }
+
+        Ok(self)
+    }
+
+    pub fn stone(&self, coordinate: &Coordinate) -> Option<Color> {
+        self.groups
+            .iter()
+            .find(|g| g.contains(coordinate))
+            .map(|g| g.color)
+    }
+
+    pub fn group(&self, coordinate: &Coordinate) -> Option<&Group> {
+        self.groups
+            .iter()
+            .find(|g| g.coordinates.contains(coordinate))
+    }
+
+    pub fn remove_group(&mut self, group: &Group) {
+        self.groups.retain(|g| g != group);
+    }
+
+    pub fn adjacent_groups(&self, group: &Group) -> Vec<Group> {
+        let adjacent_spaces = self.group_halo(group).into_iter();
+        let mut grps: Vec<Group> = Vec::new();
+
+        adjacent_spaces.for_each(|coord| match self.group(&coord) {
+            None => return,
+            Some(adj) => {
+                if group.color == adj.color {
+                    return;
+                }
+                if grps.iter().any(|g| g.coordinates.contains(&coord)) {
+                    return;
+                }
+                grps.push(adj.clone());
+            }
+        });
+
+        grps
+    }
+
+    pub fn group_halo(&self, group: &Group) -> HashSet<Coordinate> {
+        group
+            .coordinates
+            .iter()
+            .map(|c| self.adjacencies(c))
+            .flatten()
+            .collect::<HashSet<Coordinate>>()
+    }
+
+    pub fn liberties(&self, group: &Group) -> usize {
+        self.group_halo(group)
+            .into_iter()
+            .filter(|c| self.stone(&c) == None)
+            .count()
+    }
+
+    pub fn adjacencies(&self, coordinate: &Coordinate) -> Vec<Coordinate> {
+        let mut v = Vec::new();
+        if coordinate.column > 0 {
+            v.push(Coordinate {
+                column: coordinate.column - 1,
+                row: coordinate.row,
+            });
+        }
+        if coordinate.row > 0 {
+            v.push(Coordinate {
+                column: coordinate.column,
+                row: coordinate.row - 1,
+            });
+        }
+        v.push(Coordinate {
+            column: coordinate.column + 1,
+            row: coordinate.row,
+        });
+        v.push(Coordinate {
+            column: coordinate.column,
+            row: coordinate.row + 1,
+        });
+        v.into_iter().filter(|c| self.within_board(c)).collect()
+    }
+
+    pub fn within_board(&self, coordinate: &Coordinate) -> bool {
+        coordinate.column < self.size.width && coordinate.row < self.size.height
+    }
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Group {
+    color: Color,
+    coordinates: HashSet<Coordinate>,
+}
+
+impl Group {
+    fn contains(&self, coordinate: &Coordinate) -> bool {
+        self.coordinates.contains(coordinate)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    /* Two players (Black and White) take turns and Black plays first
+     * Stones are placed on the line intersections and not moved.
+     * A stone with no liberties is removed from the board.
+     * A group of stones of the same color share liberties.
+     * A stone at the edge of the board has only three liberties.
+     * A stone at the corner of the board has only two liberties.
+     * A stone may not be placed in a suicidal position.
+     * A stone placed in a suicidal position is legal if it captures other stones first.
+     */
+
+    fn with_example_board(test: impl FnOnce(Board)) {
+        let board = Board::from_coordinates(
+            vec![
+                (Coordinate { column: 3, row: 3 }, Color::White),
+                (Coordinate { column: 3, row: 4 }, Color::White),
+                /* */
+                (Coordinate { column: 8, row: 3 }, Color::Black),
+                (Coordinate { column: 9, row: 3 }, Color::Black),
+                (Coordinate { column: 9, row: 4 }, Color::Black),
+                /* */
+                (Coordinate { column: 15, row: 3 }, Color::White),
+                (Coordinate { column: 15, row: 4 }, Color::White),
+                (Coordinate { column: 15, row: 5 }, Color::White),
+                (Coordinate { column: 14, row: 4 }, Color::White),
+                /* */
+                (Coordinate { column: 3, row: 8 }, Color::White),
+                (Coordinate { column: 3, row: 9 }, Color::White),
+                (Coordinate { column: 4, row: 9 }, Color::White),
+                (Coordinate { column: 3, row: 10 }, Color::Black),
+                /* */
+                (Coordinate { column: 0, row: 0 }, Color::White),
+                (Coordinate { column: 1, row: 0 }, Color::White),
+                (Coordinate { column: 0, row: 1 }, Color::White),
+                /* */
+                (Coordinate { column: 9, row: 9 }, Color::White),
+                (Coordinate { column: 8, row: 9 }, Color::Black),
+                (Coordinate { column: 9, row: 8 }, Color::Black),
+                (Coordinate { column: 9, row: 10 }, Color::Black),
+                /* */
+                (Coordinate { column: 0, row: 17 }, Color::White),
+                (Coordinate { column: 1, row: 18 }, Color::White),
+                (Coordinate { column: 0, row: 18 }, Color::White),
+                (Coordinate { column: 0, row: 16 }, Color::Black),
+                (Coordinate { column: 1, row: 17 }, Color::Black),
+                /* */
+                (Coordinate { column: 4, row: 17 }, Color::Black),
+                (Coordinate { column: 5, row: 17 }, Color::Black),
+                (Coordinate { column: 6, row: 17 }, Color::Black),
+                (Coordinate { column: 4, row: 18 }, Color::Black),
+                (Coordinate { column: 6, row: 18 }, Color::Black),
+                (Coordinate { column: 3, row: 17 }, Color::White),
+                (Coordinate { column: 3, row: 18 }, Color::White),
+                (Coordinate { column: 4, row: 16 }, Color::White),
+                (Coordinate { column: 5, row: 16 }, Color::White),
+                (Coordinate { column: 6, row: 16 }, Color::White),
+                (Coordinate { column: 7, row: 17 }, Color::White),
+                (Coordinate { column: 7, row: 18 }, Color::White),
+                /* */
+                (Coordinate { column: 17, row: 0 }, Color::White),
+                (Coordinate { column: 17, row: 1 }, Color::White),
+                (Coordinate { column: 18, row: 1 }, Color::White),
+            ]
+            .into_iter(),
+        )
+        .unwrap();
+        test(board);
+    }
+
+    #[test]
+    fn it_gets_adjacencies_for_coordinate() {
+        let board = Board::new();
+        for column in 0..19 {
+            for row in 0..19 {
+                for coordinate in board.adjacencies(&Coordinate { column, row }) {
+                    assert!(
+                        board.within_board(&coordinate),
+                        "{} {}: {:?}",
+                        column,
+                        row,
+                        coordinate
+                    );
+                }
+            }
+        }
+    }
+
+    #[test]
+    fn it_counts_individual_liberties() {
+        let board = Board::from_coordinates(
+            vec![
+                (Coordinate { column: 3, row: 3 }, Color::White),
+                (Coordinate { column: 0, row: 3 }, Color::White),
+                (Coordinate { column: 0, row: 0 }, Color::White),
+                (Coordinate { column: 18, row: 9 }, Color::Black),
+                (
+                    Coordinate {
+                        column: 18,
+                        row: 18,
+                    },
+                    Color::Black,
+                ),
+            ]
+            .into_iter(),
+        )
+        .unwrap();
+        assert!(board.group(&Coordinate { column: 18, row: 3 }).is_none());
+        assert_eq!(
+            board
+                .group(&Coordinate { column: 3, row: 3 })
+                .map(|g| board.liberties(&g)),
+            Some(4)
+        );
+        assert_eq!(
+            board
+                .group(&Coordinate { column: 0, row: 3 })
+                .map(|g| board.liberties(&g)),
+            Some(3)
+        );
+        assert_eq!(
+            board
+                .group(&Coordinate { column: 0, row: 0 })
+                .map(|g| board.liberties(&g)),
+            Some(2)
+        );
+        assert_eq!(
+            board
+                .group(&Coordinate { column: 18, row: 9 })
+                .map(|g| board.liberties(&g)),
+            Some(3)
+        );
+        assert_eq!(
+            board
+                .group(&Coordinate {
+                    column: 18,
+                    row: 18
+                })
+                .map(|g| board.liberties(&g)),
+            Some(2)
+        );
+    }
+
+    #[test]
+    fn stones_share_liberties() {
+        with_example_board(|board: Board| {
+            let test_cases = vec![
+                (
+                    board.clone(),
+                    Coordinate { column: 0, row: 0 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 0, row: 0 },
+                            Coordinate { column: 1, row: 0 },
+                            Coordinate { column: 0, row: 1 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(3),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 1, row: 0 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 0, row: 0 },
+                            Coordinate { column: 1, row: 0 },
+                            Coordinate { column: 0, row: 1 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(3),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 9, row: 9 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![Coordinate { column: 9, row: 9 }].into_iter().collect(),
+                    }),
+                    Some(1),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 3, row: 4 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 3, row: 3 },
+                            Coordinate { column: 3, row: 4 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(6),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 9, row: 3 },
+                    Some(Group {
+                        color: Color::Black,
+                        coordinates: vec![
+                            Coordinate { column: 8, row: 3 },
+                            Coordinate { column: 9, row: 3 },
+                            Coordinate { column: 9, row: 4 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(7),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 15, row: 4 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 15, row: 3 },
+                            Coordinate { column: 15, row: 4 },
+                            Coordinate { column: 15, row: 5 },
+                            Coordinate { column: 14, row: 4 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(8),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 3, row: 9 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 3, row: 8 },
+                            Coordinate { column: 3, row: 9 },
+                            Coordinate { column: 4, row: 9 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(6),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 0, row: 18 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 0, row: 17 },
+                            Coordinate { column: 0, row: 18 },
+                            Coordinate { column: 1, row: 18 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(1),
+                ),
+                (
+                    board.clone(),
+                    Coordinate { column: 0, row: 17 },
+                    Some(Group {
+                        color: Color::White,
+                        coordinates: vec![
+                            Coordinate { column: 0, row: 17 },
+                            Coordinate { column: 0, row: 18 },
+                            Coordinate { column: 1, row: 18 },
+                        ]
+                        .into_iter()
+                        .collect(),
+                    }),
+                    Some(1),
+                ),
+            ];
+
+            println!("{}", board);
+            for (board, coordinate, group, liberties) in test_cases {
+                assert_eq!(board.group(&coordinate), group.as_ref());
+                assert_eq!(
+                    board.group(&coordinate).map(|g| board.liberties(&g)),
+                    liberties,
+                    "{:?}",
+                    coordinate
+                );
+            }
+        });
+    }
+
+    #[test]
+    fn it_finds_adjacent_groups() {
+        with_example_board(|board| {
+            let group = board
+                .group(&Coordinate { column: 0, row: 0 })
+                .cloned()
+                .unwrap();
+            assert_eq!(board.adjacent_groups(&group), Vec::new());
+
+            let group = board
+                .group(&Coordinate { column: 3, row: 10 })
+                .cloned()
+                .unwrap();
+            assert_eq!(board.adjacent_groups(&group).len(), 1);
+        });
+    }
+
+    #[test]
+    fn surrounding_a_group_removes_it() {
+        with_example_board(|board| {
+            let board = board
+                .place_stone(Coordinate { column: 10, row: 9 }, Color::Black)
+                .unwrap();
+            assert!(board.stone(&Coordinate { column: 9, row: 9 }).is_none());
+
+            let board = board
+                .place_stone(Coordinate { column: 2, row: 18 }, Color::Black)
+                .unwrap();
+            assert!(board.stone(&Coordinate { column: 0, row: 18 }).is_none());
+            assert!(board.stone(&Coordinate { column: 1, row: 18 }).is_none());
+            assert!(board.stone(&Coordinate { column: 0, row: 17 }).is_none());
+            assert!(board.group(&Coordinate { column: 0, row: 18 }).is_none());
+
+            let board = board
+                .place_stone(Coordinate { column: 5, row: 18 }, Color::White)
+                .unwrap();
+            assert!(board.stone(&Coordinate { column: 4, row: 17 }).is_none());
+            assert!(board.stone(&Coordinate { column: 5, row: 17 }).is_none());
+            assert!(board.stone(&Coordinate { column: 6, row: 17 }).is_none());
+            assert!(board.stone(&Coordinate { column: 4, row: 18 }).is_none());
+            assert!(board.stone(&Coordinate { column: 6, row: 18 }).is_none());
+        });
+    }
+
+    #[test]
+    fn self_capture_is_forbidden() {
+        with_example_board(|board| {
+            {
+                let board = board.clone();
+                let res = board.place_stone(Coordinate { column: 18, row: 0 }, Color::Black);
+                assert_eq!(res, Err(BoardError::SelfCapture));
+            }
+
+            {
+                let board = board.clone();
+                let res = board.place_stone(Coordinate { column: 5, row: 18 }, Color::Black);
+                assert_eq!(res, Err(BoardError::SelfCapture));
+            }
+        });
+    }
+
+    #[test]
+    fn validate_group_comparisons() {
+        {
+            let b1 = Board::from_coordinates(
+                vec![(Coordinate { column: 7, row: 9 }, Color::White)].into_iter(),
+            )
+            .unwrap();
+            let b2 = Board::from_coordinates(
+                vec![(Coordinate { column: 7, row: 9 }, Color::White)].into_iter(),
+            )
+            .unwrap();
+
+            assert_eq!(b1, b2);
+        }
+
+        {
+            let b1 = Board::from_coordinates(
+                vec![
+                    (Coordinate { column: 7, row: 9 }, Color::White),
+                    (Coordinate { column: 8, row: 10 }, Color::White),
+                ]
+                .into_iter(),
+            )
+            .unwrap();
+            let b2 = Board::from_coordinates(
+                vec![
+                    (Coordinate { column: 8, row: 10 }, Color::White),
+                    (Coordinate { column: 7, row: 9 }, Color::White),
+                ]
+                .into_iter(),
+            )
+            .unwrap();
+
+            assert_eq!(b1, b2);
+        }
+    }
+
+    #[test]
+    fn two_boards_can_be_compared() {
+        let board = Board::from_coordinates(
+            vec![
+                (Coordinate { column: 7, row: 9 }, Color::White),
+                (Coordinate { column: 8, row: 8 }, Color::White),
+                (Coordinate { column: 8, row: 10 }, Color::White),
+                (Coordinate { column: 9, row: 9 }, Color::White),
+                (Coordinate { column: 10, row: 9 }, Color::Black),
+                (Coordinate { column: 9, row: 8 }, Color::Black),
+                (Coordinate { column: 9, row: 10 }, Color::Black),
+            ]
+            .into_iter(),
+        )
+        .unwrap();
+
+        let b1 = board
+            .clone()
+            .place_stone(Coordinate { column: 8, row: 9 }, Color::Black)
+            .unwrap();
+
+        let b2 = b1
+            .clone()
+            .place_stone(Coordinate { column: 9, row: 9 }, Color::White)
+            .unwrap();
+
+        assert_eq!(board, b2);
+    }
+}

kifu/core/src/config.rs

@@ -0,0 +1,198 @@
+use crate::types::Player;
+use serde::{Deserialize, Serialize};
+use std::{
+    collections::HashMap,
+    fs::File,
+    io::{ErrorKind, Read},
+    path::PathBuf,
+};
+use thiserror::Error;
+
+/*
+pub trait ConfigOption {
+    type Value;
+}
+
+pub struct DatabasePath(PathBuf);
+
+impl ConfigOption for DatabasePath {
+    type Value = PathBuf;
+}
+
+impl ConfigOption for Player {
+    type Value = Player;
+}
+
+pub trait Config {
+    // fn set_option(option: ConfigOption);
+    fn get_option<N, C: ConfigOption>(name: Name) -> C<Name = Name>
+}
+*/
+
+#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
+enum OptionNames {
+    DatabasePath,
+    Me,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum ConfigOption {
+    DatabasePath(DatabasePath),
+    Me(Me),
+}
+
+#[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),
+}
+
+#[derive(Clone, Debug)]
+pub struct Config {
+    config_path: PathBuf,
+    values: HashMap<OptionNames, ConfigOption>,
+}
+
+impl Config {
+    pub fn new(config_path: PathBuf) -> Self {
+        Self {
+            config_path,
+            values: HashMap::new(),
+        }
+    }
+
+    pub fn from_path(config_path: PathBuf) -> Result<Self, ConfigReadError> {
+        let mut settings = config_path.clone();
+        settings.push("config");
+
+        match File::open(settings) {
+            Ok(mut file) => {
+                let mut buf = String::new();
+                file.read_to_string(&mut buf)
+                    .map_err(|err| ConfigReadError::CannotRead(err))?;
+                let values = serde_json::from_str(buf.as_ref())
+                    .map_err(|err| ConfigReadError::InvalidJSON(err))?;
+                Ok(Self {
+                    config_path,
+                    values,
+                })
+            }
+            Err(io_err) => {
+                match io_err.kind() {
+                    ErrorKind::NotFound => {
+                        /* create the path and an empty file */
+                        Ok(Self {
+                            config_path,
+                            values: HashMap::new(),
+                        })
+                    }
+                    _ => Err(ConfigReadError::CannotOpen(io_err)),
+                }
+            }
+        }
+    }
+
+    pub fn set(&mut self, val: ConfigOption) {
+        let _ = match val {
+            ConfigOption::DatabasePath(_) => self.values.insert(OptionNames::DatabasePath, val),
+            ConfigOption::Me(_) => self.values.insert(OptionNames::Me, val),
+        };
+    }
+
+    pub fn get<'a, T>(&'a self) -> T
+    where
+        T: From<&'a Self>,
+    {
+        self.into()
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct DatabasePath(PathBuf);
+
+impl std::ops::Deref for DatabasePath {
+    type Target = PathBuf;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl From<&Config> for DatabasePath {
+    fn from(config: &Config) -> Self {
+        match config.values.get(&OptionNames::DatabasePath) {
+            Some(ConfigOption::DatabasePath(path)) => path.clone(),
+            _ => DatabasePath(config.config_path.clone()),
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct Me(Player);
+
+impl From<&Config> for Option<Me> {
+    fn from(config: &Config) -> Self {
+        config
+            .values
+            .get(&OptionNames::Me)
+            .and_then(|val| match val {
+                ConfigOption::Me(me) => Some(me.clone()),
+                _ => None,
+            })
+    }
+}
+
+impl std::ops::Deref for Me {
+    type Target = Player;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::types::Rank;
+    use cool_asserts::assert_matches;
+
+    #[test]
+    fn it_can_set_and_get_options() {
+        let mut config = Config::new(PathBuf::from("."));
+        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
+            "fixtures/five_games",
+        ))));
+        config.set(ConfigOption::Me(Me(Player {
+            name: "Savanni".to_owned(),
+            rank: Some(Rank::Kyu(10)),
+        })));
+    }
+
+    #[test]
+    fn it_can_serialize_and_deserialize() {
+        let mut config = Config::new(PathBuf::from("."));
+        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
+            "fixtures/five_games",
+        ))));
+        config.set(ConfigOption::Me(Me(Player {
+            name: "Savanni".to_owned(),
+            rank: Some(Rank::Kyu(10)),
+        })));
+        let s = serde_json::to_string(&config.values).unwrap();
+        println!("{}", s);
+        let values: HashMap<OptionNames, ConfigOption> = serde_json::from_str(s.as_ref()).unwrap();
+        println!("options: {:?}", values);
+
+        assert_matches!(values.get(&OptionNames::DatabasePath),
+                        Some(ConfigOption::DatabasePath(db_path)) =>
+                        assert_eq!(*db_path, config.get())
+        );
+
+        assert_matches!(values.get(&OptionNames::Me), Some(ConfigOption::Me(val)) =>
+            assert_eq!(Some(val.clone()), config.get())
+        );
+    }
+}

kifu/core/src/database.rs

@@ -0,0 +1,95 @@
+use std::{ffi::OsStr, io::Read, os::unix::ffi::OsStrExt, path::PathBuf};
+
+use sgf::{go, parse_sgf, Game};
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error("Database permission denied")]
+    PermissionDenied,
+    #[error("An IO error occurred: {0}")]
+    IOError(std::io::Error),
+}
+
+impl From<std::io::Error> for Error {
+    fn from(err: std::io::Error) -> Self {
+        Error::IOError(err)
+    }
+}
+
+#[derive(Debug)]
+pub struct Database {
+    path: PathBuf,
+    games: Vec<go::Game>,
+}
+
+impl Database {
+    pub fn open_path(path: PathBuf) -> Result<Database, Error> {
+        let mut games: Vec<go::Game> = Vec::new();
+
+        let extension = PathBuf::from("sgf").into_os_string();
+
+        let path_iter = std::fs::read_dir(path.clone())?;
+        for entry in path_iter {
+            match entry {
+                Ok(entry) => {
+                    if entry.path().extension() == Some(&extension) {
+                        let mut buffer = String::new();
+                        std::fs::File::open(entry.path())
+                            .unwrap()
+                            .read_to_string(&mut buffer)
+                            .unwrap();
+                        for sgf in parse_sgf(&buffer).unwrap() {
+                            match sgf {
+                                Game::Go(game) => games.push(game),
+                                Game::Unsupported(_) => {}
+                            }
+                        }
+                    }
+                }
+                Err(err) => println!("failed entry: {:?}", err),
+            }
+        }
+
+        Ok(Database { path, games })
+    }
+
+    pub fn len(&self) -> usize {
+        self.games.len()
+    }
+
+    pub fn all_games(&self) -> impl Iterator<Item = &go::Game> {
+        self.games.iter()
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use cool_asserts::assert_matches;
+    use sgf::Date;
+
+    #[test]
+    fn it_reads_empty_database() {
+        let db = Database::open_path(PathBuf::from("fixtures/empty_database/"))
+            .expect("database to open");
+        assert_eq!(db.all_games().count(), 0);
+    }
+
+    #[test]
+    fn it_reads_five_games_from_database() {
+        let db =
+            Database::open_path(PathBuf::from("fixtures/five_games/")).expect("database to open");
+        assert_eq!(db.all_games().count(), 5);
+        for game in db.all_games() {}
+
+        assert_matches!(db.all_games().find(|g| g.info.black_player == Some("Steve".to_owned())),
+        Some(game) => {
+            assert_eq!(game.info.black_player, Some("Steve".to_owned()));
+            assert_eq!(game.info.white_player, Some("Savanni".to_owned()));
+            assert_eq!(game.info.date, vec![Date::Date(chrono::NaiveDate::from_ymd_opt(2023, 4, 19).unwrap())]);
+            assert_eq!(game.info.komi, Some(6.5));
+        }
+        );
+    }
+}

kifu/core/src/lib.rs

@@ -0,0 +1,17 @@
+mod api;
+pub use api::{
+    CoreApp, CoreRequest, CoreResponse, CreateGameRequest, HotseatPlayerRequest, PlayerInfoRequest,
+};
+
+mod board;
+pub use board::*;
+
+mod config;
+pub use config::*;
+
+mod database;
+
+mod types;
+pub use types::{BoardError, Color, Rank, Size};
+
+pub mod ui;

kifu/core/src/types.rs

@@ -0,0 +1,213 @@
+use crate::{
+    api::PlayStoneRequest,
+    board::{Board, Coordinate},
+    config::DatabasePath,
+    database::Database,
+};
+use serde::{Deserialize, Serialize};
+use std::{path::PathBuf, time::Duration};
+use thiserror::Error;
+use typeshare::typeshare;
+
+#[derive(Debug, PartialEq, Error)]
+pub enum BoardError {
+    #[error("Position is invalid")]
+    InvalidPosition,
+    #[error("Self-capture is forbidden")]
+    SelfCapture,
+    #[error("Ko")]
+    Ko,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Hash, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub enum Color {
+    Black,
+    White,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub struct Size {
+    pub width: u8,
+    pub height: u8,
+}
+
+impl Default for Size {
+    fn default() -> Self {
+        Self {
+            width: 19,
+            height: 19,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct AppState {
+    pub game: Option<GameState>,
+    pub database: Database,
+}
+
+impl AppState {
+    pub fn new(database_path: DatabasePath) -> Self {
+        Self {
+            game: Some(GameState::new()),
+            database: Database::open_path(database_path.to_path_buf()).unwrap(),
+        }
+    }
+
+    pub fn place_stone(&mut self, req: PlayStoneRequest) {
+        match self.game {
+            Some(ref mut game) => {
+                let _ = game.place_stone(Coordinate {
+                    column: req.column,
+                    row: req.row,
+                });
+            }
+            None => {}
+        }
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[typeshare]
+pub enum Rank {
+    Kyu(u8),
+    Dan(u8),
+    Pro(u8),
+}
+
+impl TryFrom<&str> for Rank {
+    type Error = String;
+
+    fn try_from(_: &str) -> Result<Rank, Self::Error> {
+        Ok(Rank::Kyu(15))
+    }
+}
+
+impl From<Rank> for String {
+    fn from(r: Rank) -> String {
+        match r {
+            Rank::Kyu(v) => format!("{} kyu", v),
+            Rank::Dan(v) => format!("{} dan", v),
+            Rank::Pro(v) => format!("{} pro", v),
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct Player {
+    pub name: String,
+    pub rank: Option<Rank>,
+}
+
+#[derive(Debug)]
+pub struct GameState {
+    pub board: Board,
+    pub past_positions: Vec<Board>,
+
+    pub conversation: Vec<String>,
+    pub current_player: Color,
+
+    pub white_player: Player,
+    pub black_player: Player,
+
+    pub white_clock: Duration,
+    pub black_clock: Duration,
+}
+
+impl GameState {
+    pub fn new() -> GameState {
+        GameState {
+            board: Board::new(),
+            past_positions: vec![],
+            conversation: vec![],
+            current_player: Color::Black,
+            white_player: Player {
+                name: "".to_owned(),
+                rank: None,
+            },
+            black_player: Player {
+                name: "".to_owned(),
+                rank: None,
+            },
+            white_clock: Duration::from_secs(600),
+            black_clock: Duration::from_secs(600),
+        }
+    }
+
+    fn place_stone(&mut self, coordinate: Coordinate) -> Result<(), BoardError> {
+        let board = self.board.clone();
+        let new_board = board.place_stone(coordinate, self.current_player)?;
+
+        if self.past_positions.contains(&new_board) {
+            return Err(BoardError::Ko);
+        }
+
+        self.past_positions.push(self.board.clone());
+        self.board = new_board;
+        match self.current_player {
+            Color::White => self.current_player = Color::Black,
+            Color::Black => self.current_player = Color::White,
+        };
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn current_player_changes_after_move() {
+        let mut state = GameState::new();
+        assert_eq!(state.current_player, Color::Black);
+        state.place_stone(Coordinate { column: 9, row: 9 }).unwrap();
+        assert_eq!(state.current_player, Color::White);
+    }
+
+    #[test]
+    fn current_player_remains_the_same_after_self_capture() {
+        let mut state = GameState::new();
+        state.board = Board::from_coordinates(
+            vec![
+                (Coordinate { column: 17, row: 0 }, Color::White),
+                (Coordinate { column: 17, row: 1 }, Color::White),
+                (Coordinate { column: 18, row: 1 }, Color::White),
+            ]
+            .into_iter(),
+        )
+        .unwrap();
+        state.current_player = Color::Black;
+
+        assert_eq!(
+            state.place_stone(Coordinate { column: 18, row: 0 }),
+            Err(BoardError::SelfCapture)
+        );
+        assert_eq!(state.current_player, Color::Black);
+    }
+
+    #[test]
+    fn ko_rules_are_enforced() {
+        let mut state = GameState::new();
+        state.board = Board::from_coordinates(
+            vec![
+                (Coordinate { column: 7, row: 9 }, Color::White),
+                (Coordinate { column: 8, row: 8 }, Color::White),
+                (Coordinate { column: 8, row: 10 }, Color::White),
+                (Coordinate { column: 9, row: 9 }, Color::White),
+                (Coordinate { column: 10, row: 9 }, Color::Black),
+                (Coordinate { column: 9, row: 8 }, Color::Black),
+                (Coordinate { column: 9, row: 10 }, Color::Black),
+            ]
+            .into_iter(),
+        )
+        .unwrap();
+
+        state.place_stone(Coordinate { column: 8, row: 9 }).unwrap();
+        assert_eq!(
+            state.place_stone(Coordinate { column: 9, row: 9 }),
+            Err(BoardError::Ko)
+        );
+    }
+}

kifu/core/src/ui/elements/action.rs

@@ -0,0 +1,10 @@
+use serde::{Deserialize, Serialize};
+use typeshare::typeshare;
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct Action<A> {
+    pub id: String,
+    pub label: String,
+    pub action: A,
+}

kifu/core/src/ui/elements/game_preview.rs

@@ -0,0 +1,36 @@
+use serde::{Deserialize, Serialize};
+use sgf::{
+    go::{Game, Rank},
+    Date,
+};
+use typeshare::typeshare;
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[typeshare]
+pub struct GamePreviewElement {
+    pub date: Vec<Date>,
+    pub black_player: String,
+    pub black_rank: Option<Rank>,
+    pub white_player: String,
+    pub white_rank: Option<Rank>,
+}
+
+impl GamePreviewElement {
+    pub fn new(game: &Game) -> GamePreviewElement {
+        GamePreviewElement {
+            date: game.info.date.clone(),
+            black_player: game
+                .info
+                .black_player
+                .clone()
+                .unwrap_or("black_player".to_owned()),
+            black_rank: game.info.black_rank.clone(),
+            white_player: game
+                .info
+                .white_player
+                .clone()
+                .unwrap_or("white_player".to_owned()),
+            white_rank: game.info.white_rank.clone(),
+        }
+    }
+}

kifu/core/src/ui/elements/menu.rs

@@ -0,0 +1,18 @@
+use serde::{Deserialize, Serialize};
+use typeshare::typeshare;
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct Menu<T: PartialEq + Eq> {
+    current: Option<T>,
+    options: Vec<T>,
+}
+
+impl<T: PartialEq + Eq> Menu<T> {
+    pub fn new(options: Vec<T>, current: Option<T>) -> Menu<T> {
+        if let Some(ref current) = current {
+            assert!(options.contains(current));
+        }
+        Menu { current, options }
+    }
+}

kifu/core/src/ui/elements/mod.rs

@@ -0,0 +1,3 @@
+pub mod action;
+pub mod game_preview;
+pub mod menu;

kifu/core/src/ui/home.rs

@@ -0,0 +1,80 @@
+use crate::ui::{Action, GamePreviewElement};
+use serde::{Deserialize, Serialize};
+use sgf::go::Game;
+use typeshare::typeshare;
+
+fn rank_strings() -> Vec<String> {
+    vec![
+        "", "30 kyu", "29 kyu", "28 kyu", "27 kyu", "26 kyu", "25 kyu", "24 kyu", "23 kyu",
+        "22 kyu", "21 kyu", "20 kyu", "19 kyu", "18 kyu", "17 kyu", "16 kyu", "15 kyu", "14 kyu",
+        "13 kyu", "12 kyu", "11 kyu", "10 kyu", "9 kyu", "8 kyu", "7 kyu", "6 kyu", "5 kyu",
+        "4 kyu", "3 kyu", "2 kyu", "1 kyu", "1 dan", "2 dan", "3 dan", "4 dan", "5 dan", "6 dan",
+        "7 dan", "8 dan", "9 dan", "1 pro", "2 pro", "3 pro", "4 pro", "5 pro", "6 pro", "7 pro",
+        "8 pro", "9 pro",
+    ]
+    .into_iter()
+    .map(|s| s.to_owned())
+    .collect()
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub enum PlayerElement {
+    Hotseat(HotseatPlayerElement),
+    // Remote(RemotePlayerElement),
+    // Bot(BotPlayerElement),
+}
+
+impl Default for PlayerElement {
+    fn default() -> PlayerElement {
+        PlayerElement::Hotseat(HotseatPlayerElement::default())
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Default)]
+#[typeshare]
+pub struct HotseatPlayerElement {
+    pub placeholder: Option<String>,
+    pub default_rank: Option<String>,
+    pub ranks: Vec<String>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct RemotePlayerElement {}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct BotPlayerElement {}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct HomeView {
+    pub black_player: PlayerElement,
+    pub white_player: PlayerElement,
+    pub games: Vec<GamePreviewElement>,
+    pub start_game: Action<()>,
+}
+
+pub fn home<'a>(games: impl Iterator<Item = &'a Game>) -> HomeView {
+    let black_player = PlayerElement::Hotseat(HotseatPlayerElement {
+        placeholder: Some("black player".to_owned()),
+        default_rank: None,
+        ranks: rank_strings(),
+    });
+    let white_player = PlayerElement::Hotseat(HotseatPlayerElement {
+        placeholder: Some("white player".to_owned()),
+        default_rank: None,
+        ranks: rank_strings(),
+    });
+    HomeView {
+        black_player,
+        white_player,
+        games: games.map(GamePreviewElement::new).collect(),
+        start_game: Action {
+            id: "start-game-action".to_owned(),
+            label: "New Game".to_owned(),
+            action: (),
+        },
+    }
+}

kifu/core/src/ui/launch_screen.rs

@@ -0,0 +1,14 @@
+use crate::{
+    ui::types;
+};
+use serde::{Deserialize, Serialize};
+use typeshare::typeshare;
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub enum LaunchScreenView {
+    CreateGame(CreateGameView)
+}
+
+// This will be called when the Kifu application starts.
+pub fn launch_screen() -> LaunchScreenView {
+}

kifu/core/src/ui/mod.rs

@@ -0,0 +1,17 @@
+mod elements;
+pub use elements::{action::Action, game_preview::GamePreviewElement, menu::Menu};
+
+mod playing_field;
+pub use playing_field::{playing_field, PlayingFieldView};
+
+// mod launch_screen;
+// pub use launch_screen::{launch_screen, LaunchScreenView};
+
+mod home;
+pub use home::{home, HomeView, HotseatPlayerElement, PlayerElement};
+
+mod types;
+pub use types::{
+    BoardElement, ChatElement, IntersectionElement, PlayerCardElement, StoneElement,
+    TextFieldElement,
+};

kifu/core/src/ui/playing_field.rs

@@ -0,0 +1,60 @@
+use crate::{
+    types::{Color, GameState},
+    ui::types,
+};
+use serde::{Deserialize, Serialize};
+use typeshare::typeshare;
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct PlayingFieldView {
+    pub board: types::BoardElement,
+    pub player_card_black: types::PlayerCardElement,
+    pub player_card_white: types::PlayerCardElement,
+    pub chat: types::ChatElement,
+    pub message: types::TextFieldElement,
+    pub current_player: Color,
+}
+
+pub fn playing_field(game: &GameState) -> PlayingFieldView {
+    let board = types::BoardElement::from(&game.board);
+
+    let player_card_black = types::PlayerCardElement {
+        color: Color::Black,
+        name: game.black_player.name.clone(),
+        rank: game
+            .black_player
+            .rank
+            .map(String::from)
+            .unwrap_or("".to_owned()),
+        clock: "".to_owned(),
+    };
+
+    let player_card_white = types::PlayerCardElement {
+        color: Color::White,
+        name: game.white_player.name.clone(),
+        rank: game
+            .black_player
+            .rank
+            .map(String::from)
+            .unwrap_or("".to_owned()),
+        clock: "".to_owned(),
+    };
+
+    let chat = types::ChatElement {
+        messages: vec![
+            "[22:05] Savanni: oops".to_owned(),
+            "[22:06] Opal: you know I'll take advantage of that, right?".to_owned(),
+        ],
+    };
+    let message = types::TextFieldElement {};
+
+    PlayingFieldView {
+        board,
+        player_card_black,
+        player_card_white,
+        chat,
+        message,
+        current_player: game.current_player,
+    }
+}

kifu/core/src/ui/types.rs

@@ -0,0 +1,133 @@
+use crate::types::{Color, Size};
+use crate::{
+    api::{CoreRequest, PlayStoneRequest},
+    Board, Coordinate,
+};
+use serde::{Deserialize, Serialize};
+use typeshare::typeshare;
+
+#[derive(Clone, Copy, Debug, PartialEq, Serialize, Deserialize)]
+#[typeshare]
+pub struct Jitter {
+    pub x: i8,
+    pub y: i8,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Serialize, Deserialize)]
+#[typeshare]
+pub struct StoneElement {
+    pub color: Color,
+    pub jitter: Jitter,
+    pub liberties: Option<u8>,
+}
+
+impl StoneElement {
+    pub fn new(color: Color, liberties: Option<u8>) -> Self {
+        Self {
+            color,
+            liberties,
+            jitter: Jitter { x: 0, y: 0 },
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[typeshare]
+#[serde(tag = "type", content = "content")]
+pub enum IntersectionElement {
+    Unplayable,
+    Empty(CoreRequest),
+    Filled(StoneElement),
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct BoardElement {
+    pub size: Size,
+    pub spaces: Vec<IntersectionElement>,
+}
+
+impl BoardElement {
+    pub fn new(size: Size) -> Self {
+        let spaces: Vec<IntersectionElement> = (0..size.height)
+            .map(|row| {
+                (0..size.width)
+                    .map(|column| {
+                        IntersectionElement::Empty(CoreRequest::PlayStone(PlayStoneRequest {
+                            column,
+                            row,
+                        }))
+                    })
+                    .collect::<Vec<IntersectionElement>>()
+            })
+            .collect::<Vec<Vec<IntersectionElement>>>()
+            .concat();
+        Self { size, spaces }
+    }
+
+    pub fn stone(&self, column: u8, row: u8) -> IntersectionElement {
+        let addr = self.addr(column, row);
+        self.spaces[addr].clone()
+    }
+
+    pub fn stone_mut(&mut self, column: u8, row: u8) -> &mut IntersectionElement {
+        let addr = self.addr(column, row);
+        &mut self.spaces[addr]
+    }
+
+    fn addr(&self, column: u8, row: u8) -> usize {
+        ((row as usize) * (self.size.width as usize) + (column as usize)) as usize
+    }
+}
+
+impl From<&Board> for BoardElement {
+    fn from(board: &Board) -> Self {
+        let spaces: Vec<IntersectionElement> =
+            (0..board.size.height)
+                .map(|row| {
+                    (0..board.size.width)
+                        .map(|column| match board.stone(&Coordinate { column, row }) {
+                            Some(color) => IntersectionElement::Filled(StoneElement {
+                                jitter: Jitter { x: 0, y: 0 },
+                                liberties: None,
+                                color,
+                            }),
+                            None => IntersectionElement::Empty(CoreRequest::PlayStone(
+                                PlayStoneRequest { column, row },
+                            )),
+                        })
+                        .collect::<Vec<IntersectionElement>>()
+                })
+                .collect::<Vec<Vec<IntersectionElement>>>()
+                .concat();
+        Self {
+            size: board.size,
+            spaces,
+        }
+    }
+}
+
+impl Default for BoardElement {
+    fn default() -> Self {
+        Self::new(Size::default())
+    }
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct PlayerCardElement {
+    pub color: Color,
+    pub name: String,
+    pub rank: String,
+    pub clock: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct ChatElement {
+    pub messages: Vec<String>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+#[typeshare]
+pub struct TextFieldElement {}

kifu/core/typeshare/core.d.ts

@@ -0,0 +1,70 @@
+/*
+ Generated by typeshare 1.5.1
+*/
+
+export interface PlayStoneRequest {
+	column: number;
+	row: number;
+}
+
+export interface Size {
+	width: number;
+	height: number;
+}
+
+export type IntersectionElement = 
+	| { type: "Unplayable", content?: undefined }
+	| { type: "Empty", content: CoreRequest }
+	| { type: "Filled", content: StoneElement };
+
+export interface BoardElement {
+	size: Size;
+	spaces: IntersectionElement[];
+}
+
+export enum Color {
+	Black = "Black",
+	White = "White",
+}
+
+export interface PlayerCardElement {
+	color: Color;
+	name: string;
+	rank: string;
+	clock: string;
+}
+
+export interface ChatElement {
+	messages: string[];
+}
+
+export interface TextFieldElement {
+}
+
+export interface PlayingFieldView {
+	board: BoardElement;
+	player_card_black: PlayerCardElement;
+	player_card_white: PlayerCardElement;
+	chat: ChatElement;
+	message: TextFieldElement;
+	current_player: Color;
+}
+
+export interface Jitter {
+	x: number;
+	y: number;
+}
+
+export interface StoneElement {
+	color: Color;
+	jitter: Jitter;
+	liberties?: number;
+}
+
+export type CoreRequest = 
+	| { type: "PlayingField", content?: undefined }
+	| { type: "PlayStoneRequest", content: PlayStoneRequest };
+
+export type CoreResponse = 
+	| { type: "PlayingFieldView", content: PlayingFieldView };
+

kifu/design/analysis.html

@@ -0,0 +1,47 @@
+<!doctype html>
+<html>
+    <meta charset="utf-8">
+    <link rel="stylesheet" type="text/css" href="styles.css" />
+
+<body>
+    <div class="menu">
+        <ul>
+            <li> <a href="index.html">Index</a> </li>
+            <li> <a href="playing.html">Game Board for playing</a> </li>
+            <li> <a href="database.html">Game database</a> </li>
+            <li> <a href="analysis.html">Game board for analysis</a> </li>
+            <li> Connection management </li>
+            <li> Challenge list </li>
+            <li> Friends list </li>
+            <li> Open challenges </li>
+        </ul>
+    </div>
+
+    <div class="widget">
+        <div> US Go Congress 2023, DDK Tournament, Round 1, Board 25 </div>
+        <div class="game-analysis">
+            <div class="game-analysis__board">
+                <img src="game-screen.jpg" />
+            </div>
+
+            <div class="game-analysis__tree">
+                <div>
+                <img src="game-tree.jpg" />
+                </div>
+                <p> Shoring up the wall. Any chance to capture that group was lost a couple of moves back and Savanni knows it. </p>
+            </div>
+        </div>
+
+        <div class="game-info">
+            <div class="player-info">
+                <div> Savanni (10k) </div>
+            </div>
+            <div class="player-info">
+                <div> Opal (10k) </div>
+            </div>
+        </div>
+    </div>
+</body>
+
+</html>
+

kifu/design/database.html

@@ -0,0 +1,118 @@
+<!doctype html>
+<html>
+    <meta charset="utf-8">
+    <link rel="stylesheet" type="text/css" href="styles.css" />
+
+<body>
+    <div class="menu">
+        <ul>
+            <li> <a href="index.html">Index</a> </li>
+            <li> <a href="playing.html">Game Board for playing</a> </li>
+            <li> <a href="database.html">Game database</a> </li>
+            <li> Game board for analysis </li>
+            <li> Connection management </li>
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kifu/ffi/wasm/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "kifu-wasm"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+kifu-core               = { path = "../../core" }
+serde                   = { version = "1.0", features = ["derive"] }
+serde-wasm-bindgen      = "0.5.0"
+wasm-bindgen            = "0.2"
+wasm-bindgen-futures    = "*"
+
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false

kifu/ffi/wasm/Makefile

@@ -0,0 +1,3 @@
+
+all:
+	wasm-pack build --target web

kifu/ffi/wasm/src/lib.rs

@@ -0,0 +1,26 @@
+use kifu_core::{CoreRequest, CoreResponse};
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen]
+extern "C" {
+    #[wasm_bindgen(js_namespace = console)]
+    pub fn log(s: &str);
+}
+
+#[wasm_bindgen]
+#[derive(Debug)]
+pub struct CoreApp(kifu_core::CoreApp);
+
+#[wasm_bindgen]
+impl CoreApp {
+    #[wasm_bindgen(constructor)]
+    pub fn new() -> Self {
+        Self(kifu_core::CoreApp::new())
+    }
+
+    #[wasm_bindgen]
+    pub async fn dispatch(&self, param: &JsValue) -> JsValue {
+        let request: CoreRequest = serde_wasm_bindgen::from_value(param.clone()).unwrap();
+        serde_wasm_bindgen::to_value(&self.0.dispatch(request).await).unwrap()
+    }
+}

kifu/gtk/Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+name = "kifu-gtk"
+version = "0.1.0"
+edition = "2021"
+
+[features]
+screenplay = []
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cairo-rs    = { version = "0.17" }
+gio         = { version = "0.17" }
+glib        = { version = "0.17" }
+gtk         = { version = "0.6", package = "gtk4" }
+image       = { version = "0.24" }
+kifu-core   = { path = "../core" }
+tokio       = { version = "1.26", features = [ "full" ] }
+screenplay  = { path = "../../screenplay" }
+
+[build-dependencies]
+glib-build-tools = "0.17"
+
+[[bin]]
+name = "kifu-gtk"
+path = "src/main.rs"
+
+[[bin]]
+name = "screenplay"
+path = "src/bin/screenplay.rs"
+required-features = [ "screenplay" ]
+

kifu/gtk/Makefile

@@ -0,0 +1,10 @@
+release:
+	cargo build --release
+
+dev:
+	export CONFIG=.
+	cargo watch -x 'run --bin kifu-gtk'
+
+screenplay:
+	cargo watch -x 'run --bin screenplay --features="screenplay"'
+

kifu/gtk/build.rs

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

kifu/gtk/config

@@ -0,0 +1 @@
+{"Me":{"name":"Savanni","rank":{"Kyu":10}},"DatabasePath":"../core/fixtures/five_games"}