Crontab installation support

music.go

@@ -26,13 +26,10 @@ func (s *Sonar) Watch() {
 			if err := p.cmd.Wait(); err != nil {
 				log.Error("Player.Watch: p.cmd.Wait: %s", err)
 			}
-			p.cmd = nil
 
 			// Next track?
 			log.Info("Track ended, play next")
-			if err := s.PlayNext(); err != nil {
+			s.PlayNext()
-				log.Info("EOF: %s", err)
-			}
 		}
 		time.Sleep(1 * time.Second)
 	}
@@ -56,17 +53,15 @@ func (p *Player) Stop() error {
 	}
 
 	p.cmd = nil
-	p.playlist = []string{}
 	p.index = 0
 	return nil
 }
 
 // Next returns the next song.
 func (p *Player) Next() (string, bool) {
-	if p.index < len(p.playlist) {
-		next := p.playlist[p.index]
 	p.index++
-		return next, true
+	if p.index < len(p.playlist) {
+		return p.playlist[p.index], true
 	}
 	return "", false
 }
@@ -80,18 +75,23 @@ func (p *Player) Status() string {
 		var (
 			index  = p.index
 			length = len(p.playlist)
+			pct    float64
 		)
+		if length > 0 {
+			pct = float64(index / length)
+		}
 		parts = append(parts, fmt.Sprintf(
-			"Track %d of %d",
+			"Track %d of %d (%.2f%%)",
 			index,
 			length,
+			pct,
 		))
 
 		// Append current track.
-		if index <= len(p.playlist) {
+		if index < len(p.playlist) {
 			parts = append(parts, fmt.Sprintf(
 				"Now playing: %s",
-				p.playlist[index-1],
+				p.playlist[index],
 			))
 		}
 	} else {