init

src/app.rs

@@ -0,0 +1,69 @@
+use crossterm::event::{self, KeyCode, KeyEvent, KeyEventKind};
+use ratatui::{DefaultTerminal, Frame, buffer::Buffer, layout::Rect, widgets::Widget};
+use std::{
+    io::Result,
+    sync::mpsc::{self, Receiver},
+};
+
+pub struct App {
+    pub exit: bool,
+}
+
+pub enum Event {
+    Input(KeyEvent),
+}
+
+impl App {
+    pub fn run(&mut self, terminal: &mut DefaultTerminal, rx: Receiver<Event>) -> Result<()> {
+        while !self.exit {
+            terminal.draw(|frame: &mut Frame<'_>| self.draw(frame))?;
+
+            let event: Event = match rx.recv() {
+                Ok(ev) => ev,
+                Err(_) => break,
+            };
+            match event {
+                Event::Input(key_event) => self.handle_key_event(key_event)?,
+            }
+        }
+
+        Ok(())
+    }
+
+    fn draw(&self, frame: &mut Frame<'_>) {
+        frame.render_widget(self, frame.area());
+    }
+
+    fn handle_key_event(&mut self, key_event: KeyEvent) -> Result<()> {
+        if key_event.kind == KeyEventKind::Press && key_event.code == KeyCode::Char('q') {
+            self.exit = true;
+        }
+
+        Ok(())
+    }
+}
+
+impl Widget for &App {
+    fn render(self, area: Rect, buf: &mut Buffer)
+    where
+        Self: Sized,
+    {
+    }
+}
+
+pub fn handle_input_events(tx: mpsc::Sender<Event>) {
+    loop {
+        match event::read() {
+            Ok(ev) => {
+                if let event::Event::Key(key_event) = ev {
+                    if tx.send(Event::Input(key_event)).is_err() {
+                        break;
+                    }
+                }
+            }
+            Err(_) => {
+                continue;
+            }
+        }
+    }
+}

src/cli.rs

@@ -0,0 +1,9 @@
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(version, about = "War in Tunnels", long_about = "War in Tunnels")]
+pub struct Cli {}
+
+pub fn get_args() -> Cli {
+    Cli::parse()
+}

src/lib.rs

@@ -0,0 +1,2 @@
+pub mod app;
+// pub mod cli;

src/main.rs

@@ -1,3 +1,27 @@
-fn main() {
-    println!("Hello, world!");
+use ratatui::{Terminal, prelude::CrosstermBackend};
+use std::{
+    io::{Result, Stdout},
+    sync::mpsc::{self, Sender},
+    thread,
+};
+use war_in_tunnels::{
+    app::{App, Event, handle_input_events},
+    // cli::{Cli, get_args},
+};
+
+fn main() -> Result<()> {
+    // let args: Cli = get_args();
+    let mut terminal: Terminal<CrosstermBackend<Stdout>> = ratatui::init();
+    let mut app: App = App { exit: false };
+
+    let (event_tx, event_rx) = mpsc::channel::<Event>();
+
+    let tx_to_input_events: Sender<Event> = event_tx.clone();
+    thread::spawn(move || {
+        handle_input_events(tx_to_input_events);
+    });
+
+    let app_result: Result<()> = app.run(&mut terminal, event_rx);
+    ratatui::restore();
+    app_result
 }