Add audio list

internal/page/scrollerPage.go

@@ -36,7 +36,9 @@ type ScrollerPage struct {
 	// legacy Selected-AudioFile track, or nothing yet).
 	currentAudioFreq int
 
-	IsDownloadingAudio bool
+	audioRetryTimer float32
+	audioStarted    bool
+	dynamicAudio    bool
 
 	lines         *LineDeque
 	lineHeight    int32
@@ -277,16 +279,21 @@ func (p *ScrollerPage) Init(ctx *PageCtx) error {
 		}
 	}
 
-	// Start audio for the first proclamation in the stream. Falls back to
-	// whatever track is marked Selected in the audio_files table if the
-	// first stream has no frequency (e.g. only the default proclamation is
-	// queued) or its matching file doesn't exist on disk yet.
+	// Read DynamicAudio setting from config.
+	p.dynamicAudio = config.DynamicAudio
+	logger.Info("DynamicAudio mode: %v", p.dynamicAudio)
+
+	// Start audio for the first proclamation in the stream.
 	started := false
 	if len(p.streams) > 0 {
-		started = p.switchAudioForFrequency(p.streams[0].frequencyValue)
+		if p.dynamicAudio {
+			started = p.switchAudioForFrequency(p.streams[0].frequencyValue)
+		}
 	}
 
 	if !started {
+		// Non-dynamic mode or frequency-specific file not yet available.
+		// Play whatever track is marked Selected in the audio_files table.
 		var selectedAudio db.AudioFile
 		if err := p.Context.DbPtr.Where("Selected = ?", true).First(&selectedAudio).Error; err != nil {
 			selectedAudio = db.AudioFile{
@@ -303,6 +310,8 @@ func (p *ScrollerPage) Init(ctx *PageCtx) error {
 		}
 	}
 
+	p.audioStarted = started
+
 	currentDevice := mixer.CurrentDevice()
 	if currentDevice == "" {
 		currentDevice = "default"
@@ -501,8 +510,11 @@ func (p *ScrollerPage) nextLineWords() []string {
 			s.wordIndex = 0
 			s.colorIndex = 0 // Reset color index when proclamation restarts
 			p.streamIndex = (p.streamIndex + 1) % len(p.streams)
-			next := &p.streams[p.streamIndex]
-			p.switchAudioForFrequency(next.frequencyValue)
+			if p.dynamicAudio {
+				next := &p.streams[p.streamIndex]
+				result := p.switchAudioForFrequency(next.frequencyValue)
+				p.audioStarted = result || next.frequencyValue == 0
+			}
 		}
 	}
 
@@ -633,6 +645,20 @@ func (p *ScrollerPage) HandleEvent(event *sdl.Event) error {
 func (p *ScrollerPage) Update(dt float32) error {
 	p.updateAutoVelocity(dt)
 
+	// In dynamic mode, retry audio switch every 5 seconds until the
+	// frequency-specific file is found. In non-dynamic mode the selected
+	// file plays continuously — nothing to retry.
+	if p.dynamicAudio && !p.audioStarted {
+		p.audioRetryTimer += dt
+		if p.audioRetryTimer >= 5.0 {
+			p.audioRetryTimer = 0
+			if len(p.streams) > 0 {
+				freq := p.streams[p.streamIndex].frequencyValue
+				p.audioStarted = p.switchAudioForFrequency(freq) || freq == 0
+			}
+		}
+	}
+
 	p.scrollOffset += dt * p.velocity
 	move := int32(p.scrollOffset)
 	if move == 0 {