Merge pull request 'Non Blocking Events' (#2) from wesley/non-blocking-events into development

Reviewed-on: #2

src/lib.rs

@@ -1,5 +1,5 @@
-use crossterm::event::{self, Event};
+use crossterm::event::{self, Event, KeyCode};
-use std::error::Error;
+use std::{error::Error, time::Duration};
 
 pub mod cli;
 pub mod pomodoro;
@@ -8,13 +8,35 @@ pub mod ui;
 use ui::draw_ui;
 
 pub fn run() -> Result<(), Box<dyn Error>> {
+    let mut keep_running;
     let mut terminal = ratatui::init();
     loop {
         draw_ui(&mut terminal)?;
-        if matches!(event::read().expect("failed to read event"), Event::Key(_)) {
+
+        keep_running = process_events()?;
+
+        if !keep_running {
             break;
         }
     }
     ratatui::restore();
     Ok(())
 }
+
+fn process_events() -> Result<bool, Box<dyn Error>> {
+    if !event::poll(Duration::from_secs(0))? {
+        return Ok(true);
+    }
+
+    if let Event::Key(key) = event::read()? {
+        return Ok(handle_key(key.code));
+    }
+    Ok(true)
+}
+
+fn handle_key(code: KeyCode) -> bool {
+    if let KeyCode::Char('q') = code {
+        return false;
+    }
+    true
+}