fix: prevent overwriting saved queue with empty track lists in repository and music player

zyrarbot/music/music_player.py

@@ -111,14 +111,14 @@ class MusicPlayer:
         if not self._queues:
             return
         state = self.state(guild_id)
-        self._queues.save(
-            guild_id,
-            [
-                self._track_snapshot(track)
-                for track in state.queue
-                if self.plays_left(track, guild_id) > 0
-            ],
-        )
+        tracks = [
+            self._track_snapshot(track)
+            for track in state.queue
+            if self.plays_left(track, guild_id) > 0
+        ]
+        if not tracks:
+            return
+        self._queues.save(guild_id, tracks)
 
     def finish_current(self, guild_id: int) -> None:
         """Consume one play when playback ends outside the regular callback."""

zyrarbot/storage/queue_repository.py

@@ -21,6 +21,8 @@ class QueueRepository:
         return self._stores[guild_id]
 
     def save(self, guild_id: int, tracks: list[dict[str, Any]]) -> None:
+        if not tracks:
+            return
         self._store(guild_id).set("tracks", tracks)
 
     def load(self, guild_id: int) -> list[dict[str, Any]]: