fix: move audio playback into another thread

src/alert.rs

@@ -1,5 +1,4 @@
-use rodio::{Decoder, Source, OutputStream};
-use std::error::Error;
+use rodio::{Decoder, OutputStream, Sink, Source};
 use std::fs::File;
 use std::io::BufReader;
 use std::path::PathBuf;
@@ -18,12 +17,23 @@ impl Alert {
         self.path = path;
     }
 
-    pub fn play(&self) -> Result<(), Box<dyn Error>> {
-        let (_, handle) = OutputStream::try_default()?;
-        let file = File::open(&self.path)?;
-        let source = Decoder::new(BufReader::new(file))?;
+    pub fn play(&self) {
+        let file = File::open(&self.path).unwrap();
 
-        handle.play_raw(source.convert_samples()).unwrap(); // use ?, blocked: https://github.com/RustAudio/rodio/pull/329
-        Ok(())
+        std::thread::spawn(move || {
+            let (_stream, handle) = OutputStream::try_default().unwrap();
+            let source = Decoder::new(BufReader::new(file)).unwrap();
+            let sink = Sink::try_new(&handle).unwrap();
+
+            sink.append(source);
+
+            loop {
+                if sink.len() == 0 {
+                    break;
+                }
+            }
+
+            println!("Exited Playback Thread.");
+        });
     }
 }

src/pomodoro.rs

@@ -132,7 +132,7 @@ impl Pomodoro {
                 };
 
                 if let Some(alert) = maybe_alert {
-                    let _ = alert.play();
+                    alert.play()
                 }
 
                 let _ = self.notify();