Fix: Include backend/audio Django app in repository

backend/audio/serializers_lyrics.py

@@ -0,0 +1,87 @@
+"""Serializers for lyrics"""
+from rest_framework import serializers
+from audio.models_lyrics import Lyrics, LyricsCache
+
+
+class LyricsSerializer(serializers.ModelSerializer):
+    """Serializer for Lyrics model"""
+    
+    audio_id = serializers.CharField(source='audio.youtube_id', read_only=True)
+    audio_title = serializers.CharField(source='audio.title', read_only=True)
+    has_lyrics = serializers.BooleanField(read_only=True)
+    is_synced = serializers.BooleanField(read_only=True)
+    display_lyrics = serializers.CharField(source='get_display_lyrics', read_only=True)
+    
+    class Meta:
+        model = Lyrics
+        fields = [
+            'audio_id',
+            'audio_title',
+            'synced_lyrics',
+            'plain_lyrics',
+            'is_instrumental',
+            'source',
+            'language',
+            'fetched_date',
+            'fetch_attempted',
+            'fetch_attempts',
+            'last_error',
+            'has_lyrics',
+            'is_synced',
+            'display_lyrics',
+        ]
+        read_only_fields = [
+            'audio_id',
+            'audio_title',
+            'fetched_date',
+            'fetch_attempted',
+            'fetch_attempts',
+            'last_error',
+            'has_lyrics',
+            'is_synced',
+            'display_lyrics',
+        ]
+
+
+class LyricsUpdateSerializer(serializers.Serializer):
+    """Serializer for manually updating lyrics"""
+    
+    synced_lyrics = serializers.CharField(required=False, allow_blank=True)
+    plain_lyrics = serializers.CharField(required=False, allow_blank=True)
+    is_instrumental = serializers.BooleanField(required=False, default=False)
+    language = serializers.CharField(required=False, allow_blank=True, max_length=10)
+
+
+class LyricsFetchSerializer(serializers.Serializer):
+    """Serializer for fetching lyrics"""
+    
+    force = serializers.BooleanField(default=False, required=False)
+
+
+class LyricsCacheSerializer(serializers.ModelSerializer):
+    """Serializer for LyricsCache model"""
+    
+    class Meta:
+        model = LyricsCache
+        fields = [
+            'id',
+            'title',
+            'artist_name',
+            'album_name',
+            'duration',
+            'synced_lyrics',
+            'plain_lyrics',
+            'is_instrumental',
+            'language',
+            'source',
+            'cached_date',
+            'last_accessed',
+            'access_count',
+            'not_found',
+        ]
+        read_only_fields = [
+            'id',
+            'cached_date',
+            'last_accessed',
+            'access_count',
+        ]