current state of player

backend/player/player.go

@@ -6,13 +6,16 @@ import (
 	"os"
 	"time"
 
+	"github.com/gopxl/beep"
 	"github.com/gopxl/beep/mp3"
 	"github.com/gopxl/beep/speaker"
 )
 
 type Player struct {
-	ctx   context.Context
-	state PlayerState
+	ctx      context.Context
+	state    PlayerState
+	streamer beep.Streamer
+	format   beep.Format
 }
 
 type PlayerState int
@@ -36,23 +39,34 @@ func (p *Player) ChangeState(desiredState PlayerState) error {
 	return nil
 }
 
-func (p *Player) Play() error {
-	f, err := os.Open("test_data/music_library_test/03 anything.mp3")
+func (p *Player) Play(filePath string) error {
+	f, err := os.Open(filePath)
 	if err != nil {
-		return fmt.Errorf("Failed to open file %w", err)
+		return fmt.Errorf("failed to open file %w", err)
+	}
+
+	if p.streamer == nil || p.format == nil {
+
 	}
 
 	streamer, format, err := mp3.Decode(f)
 	if err != nil {
-		return fmt.Errorf("Failed to decode mp3 %w", err)
+		return fmt.Errorf("failed to decode mp3 %w", err)
 	}
 	defer streamer.Close()
 
+	// initialize the speaker with the sample rate from the file
 	err = speaker.Init(format.SampleRate, format.SampleRate.N(time.Second/10))
 	if err != nil {
-		return fmt.Errorf("Failed to initialize speaker %w", err)
+		return fmt.Errorf("failed to initialize speaker %w", err)
 	}
-	speaker.Play(streamer)
-	select {}
+
+	// hangs until song finishes playing
+	done := make(chan bool)
+	speaker.Play(beep.Seq(streamer, beep.Callback(func() {
+		done <- true
+	})))
+
+	<-done
 	return nil
 }