commit f74c5b474c919b2a7bad55672047a192199add3c
Author: JOLIMAITRE Matthieu <matthieu@imagevo.fr>
Date:   Sat Jan 6 00:51:15 2024 +0100

    marche

diff --git a/.gitignore b/.gitignore
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diff --git a/Cargo.lock b/Cargo.lock
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+dependencies = [
+ "memchr",
+]
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..c8f63ef
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "timeurs"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+async-channel = "2.1"
+gtk = { version = "0.7", package = "gtk4", features = ["v4_12"] }
+oneshot = "0.1"
+rodio = "0.17"
+
+[profile.release]
+strip = true
+lto = true
+codegen-units = 1
diff --git a/assets/ding.ogg b/assets/ding.ogg
new file mode 100644
index 0000000..9dcb27b
Binary files /dev/null and b/assets/ding.ogg differ
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..8ad9661
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,163 @@
+use std::ops::Mul;
+use std::sync::mpsc::{self, Sender};
+use std::thread;
+use std::time::Duration;
+
+use glib::clone;
+use gtk::prelude::*;
+use gtk::{glib, Application, ApplicationWindow, Button, Entry, Label, Orientation};
+use state::{Cmd, State};
+
+fn main() -> glib::ExitCode {
+    // Create a new application
+    let app = Application::builder()
+        .application_id("org.gtk_rs.HelloWorld2")
+        .build();
+
+    let (send, rec) = mpsc::channel();
+    thread::spawn(move || {
+        State::initial().spin(rec);
+    });
+
+    app.connect_activate(move |app| build_ui(app, send.clone()));
+    app.run()
+}
+mod state;
+fn build_ui(app: &Application, cmd: Sender<Cmd>) {
+    let label = Label::builder().label("-").build();
+
+    // entry
+    let entry = Entry::builder().text("0:00:10").build();
+    let set_button = Button::builder().label("set").build();
+    let entry_container = gtk::Box::builder()
+        .orientation(Orientation::Horizontal)
+        .spacing(8)
+        .build();
+    entry_container.append(&entry);
+    entry_container.append(&set_button);
+
+    let passed = cmd.clone();
+    set_button.connect_clicked(move |_| {
+        let cmd = &passed;
+        let inputted = entry.text().to_string();
+        let inputted = parse_input_time(&inputted);
+        cmd.send(Cmd::SetInput(inputted)).unwrap();
+        cmd.send(Cmd::Reset).unwrap();
+    });
+
+    // pause & reset
+    let pause_button = Button::builder().label("start").build();
+    let reset_button = Button::builder().label("reset").build();
+    let button_container = gtk::Box::builder()
+        .orientation(Orientation::Horizontal)
+        .spacing(8)
+        .build();
+    button_container.append(&pause_button);
+    button_container.append(&reset_button);
+
+    let passed = cmd.clone();
+    pause_button.connect_clicked(move |button| {
+        let cmd = &passed;
+        cmd.send(Cmd::TogglePaused).unwrap();
+        let (send, rec) = oneshot::channel();
+        cmd.send(Cmd::GetIsPaused(send)).unwrap();
+        let is_paused = rec.recv().unwrap();
+        button.set_label(if is_paused { "start" } else { "pause" });
+    });
+
+    let passed = cmd.clone();
+    reset_button.connect_clicked(move |_| {
+        let cmd = &passed;
+        pause_button.set_label("start");
+        cmd.send(Cmd::Reset).unwrap();
+    });
+
+    // container
+    let container = gtk::Box::builder()
+        .orientation(Orientation::Vertical)
+        .spacing(8)
+        .margin_top(12)
+        .margin_bottom(12)
+        .margin_start(12)
+        .margin_end(12)
+        .build();
+    container.append(&label);
+    container.append(&entry_container);
+    container.append(&button_container);
+
+    let passed = cmd.clone();
+    glib::spawn_future_local(clone!(@weak label => async move {
+        let cmd = &passed;
+        loop {
+            glib::timeout_future(Duration::from_millis(10)).await;
+            let (send, rec) = oneshot::channel();
+            cmd.send(Cmd::GetTime(send)).unwrap();
+            let time = rec.recv().unwrap();
+            label.set_text(&format_time(time));
+        }
+    }));
+
+    let window = ApplicationWindow::builder()
+        .application(app)
+        .title("My GTK App")
+        .child(&container)
+        .build();
+    window.present();
+}
+
+fn parse_input_time(inputted: &str) -> f32 {
+    fn parse_empty_zero(input: &str) -> i32 {
+        if input.is_empty() {
+            return 0;
+        }
+        input.parse().unwrap()
+    }
+    inputted
+        .split(':')
+        .collect::<Vec<_>>()
+        .iter()
+        .rev()
+        .map(|part| parse_empty_zero(part))
+        .enumerate()
+        .map(|(index, item)| 60i32.pow(index as u32) * item)
+        .sum::<i32>() as f32
+}
+
+#[test]
+fn test_parse_input_time() {
+    assert_eq!(parse_input_time(""), 0f32);
+    assert_eq!(parse_input_time(":"), 0f32);
+    assert_eq!(parse_input_time("3"), 3f32);
+    assert_eq!(parse_input_time(":3"), 3f32);
+    assert_eq!(parse_input_time("3:"), 180f32);
+    assert_eq!(parse_input_time(":3:"), 180f32);
+    assert_eq!(parse_input_time("3::"), 10800f32);
+}
+
+fn format_time(input: f32) -> String {
+    // les maths 🧙
+    let decimal = input.rem_euclid(1.).mul(100.) as i32;
+    let rest = input.div_euclid(1.);
+    let secs = rest.rem_euclid(60.) as i32;
+    let rest = rest.div_euclid(60.);
+    let min = rest.rem_euclid(60.) as i32;
+    let hours = rest.div_euclid(60.) as i32;
+    match (hours == 0, min == 0) {
+        (true, true) => format!("{secs}.{decimal:02}"),
+        (true, _) => format!("{min}:{secs:02}.{decimal:02}"),
+        _ => format!("{hours}:{min:02}:{secs:02}.{decimal:02}"),
+    }
+}
+
+#[test]
+fn test_format_time() {
+    assert_eq!(format_time(0.), "0.00");
+    assert_eq!(format_time(0.5), "0.50");
+    assert_eq!(format_time(0.25), "0.25");
+    assert_eq!(format_time(10.), "10.00");
+    assert_eq!(format_time(60.), "1:00.00");
+    assert_eq!(format_time(600.), "10:00.00");
+    assert_eq!(format_time(3600.), "1:00:00.00");
+    assert_eq!(format_time(3600.5), "1:00:00.50");
+    assert_eq!(format_time(3660.5), "1:01:00.50");
+}
diff --git a/src/state.rs b/src/state.rs
new file mode 100644
index 0000000..b6f8b01
--- /dev/null
+++ b/src/state.rs
@@ -0,0 +1,100 @@
+use std::{io::Cursor, sync::mpsc, time::Instant};
+
+use rodio::{OutputStream, OutputStreamHandle, Sink};
+
+pub enum Cmd {
+    GetTime(oneshot::Sender<f32>),
+    GetIsPaused(oneshot::Sender<bool>),
+    SetInput(f32),
+    TogglePaused,
+    Reset,
+}
+
+pub struct State {
+    stream: OutputStream,
+    stream_handle: OutputStreamHandle,
+    last_start: Instant,
+    input_time: f32,
+    ellapsed_at_last_pause: f32,
+    is_paused: bool,
+    reached_target: bool,
+    player: Option<Sink>,
+}
+
+impl State {
+    pub fn initial() -> Self {
+        let (stream, stream_handle) = OutputStream::try_default().unwrap();
+
+        Self {
+            stream,
+            stream_handle,
+            last_start: Instant::now(),
+            input_time: 0.,
+            ellapsed_at_last_pause: 0.,
+            is_paused: true,
+            reached_target: false,
+            player: None,
+        }
+    }
+
+    pub fn spin(mut self, commands: mpsc::Receiver<Cmd>) {
+        while let Ok(cmd) = commands.recv() {
+            match cmd {
+                Cmd::GetTime(returns) => {
+                    let mut total_ellapsed = self.ellapsed_at_last_pause;
+                    if !self.is_paused {
+                        total_ellapsed += self.ellapsed_since_last_start();
+                    }
+                    let res = self.input_time - total_ellapsed;
+                    if res < 0. && !self.reached_target {
+                        self.reached_target = true;
+                        self.start_playing();
+                    }
+                    returns.send(res.max(0.)).ok(); // note : sends zero instead of negatives.
+                }
+                Cmd::GetIsPaused(returns) => {
+                    returns.send(self.is_paused).ok();
+                }
+                Cmd::SetInput(inputted) => {
+                    self.input_time = inputted;
+                }
+                Cmd::TogglePaused => {
+                    self.is_paused = !self.is_paused;
+                    if self.is_paused {
+                        self.ellapsed_at_last_pause += self.ellapsed_since_last_start();
+                    } else {
+                        self.last_start = Instant::now();
+                    }
+                }
+                Cmd::Reset => {
+                    self.is_paused = true;
+                    self.ellapsed_at_last_pause = 0.;
+                    self.reached_target = false;
+                    self.stop_playing();
+                }
+            }
+        }
+    }
+
+    pub fn ellapsed_since_last_start(&self) -> f32 {
+        Instant::now().duration_since(self.last_start).as_secs_f32()
+    }
+
+    pub fn start_playing(&mut self) {
+        println!("start");
+        let cursed = Cursor::new(DING);
+        //        let source = Decoder::new_mp3(cursed).unwrap();
+        let control = self.stream_handle.play_once(cursed).unwrap();
+        control.play();
+        self.player.replace(control);
+    }
+
+    pub fn stop_playing(&self) {
+        println!("stop");
+        if let Some(player) = &self.player {
+            player.stop();
+        }
+    }
+}
+
+const DING: &[u8] = include_bytes!("../assets/ding.ogg");