refactor: Update playlist service and endpoints for global current playlist management

app/api/v1/playlists.py

@@ -62,11 +62,11 @@ async def get_main_playlist(
 
 @router.get("/current")
 async def get_current_playlist(
-    current_user: Annotated[User, Depends(get_current_active_user_flexible)],
+    current_user: Annotated[User, Depends(get_current_active_user_flexible)],  # noqa: ARG001
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
 ) -> PlaylistResponse:
-    """Get the user's current playlist (falls back to main playlist)."""
-    playlist = await playlist_service.get_current_playlist(current_user.id)
+    """Get the global current playlist (falls back to main playlist)."""
+    playlist = await playlist_service.get_current_playlist()
     return PlaylistResponse.from_playlist(playlist)
 
 
@@ -105,13 +105,19 @@ async def update_playlist(
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
 ) -> PlaylistResponse:
     """Update a playlist."""
+    if current_user.id is None:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="User ID not available",
+        )
+    
     playlist = await playlist_service.update_playlist(
         playlist_id=playlist_id,
         user_id=current_user.id,
         name=request.name,
         description=request.description,
         genre=request.genre,
-        is_current=request.is_current,
+        is_current=None,  # is_current is not handled by this endpoint
     )
     return PlaylistResponse.from_playlist(playlist)
 
@@ -212,21 +218,21 @@ async def reorder_playlist_sounds(
 @router.put("/{playlist_id}/set-current")
 async def set_current_playlist(
     playlist_id: int,
-    current_user: Annotated[User, Depends(get_current_active_user_flexible)],
+    current_user: Annotated[User, Depends(get_current_active_user_flexible)],  # noqa: ARG001
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
 ) -> PlaylistResponse:
-    """Set a playlist as the current playlist."""
-    playlist = await playlist_service.set_current_playlist(playlist_id, current_user.id)
+    """Set a playlist as the global current playlist."""
+    playlist = await playlist_service.set_current_playlist_global(playlist_id)
     return PlaylistResponse.from_playlist(playlist)
 
 
 @router.delete("/current")
 async def unset_current_playlist(
-    current_user: Annotated[User, Depends(get_current_active_user_flexible)],
+    current_user: Annotated[User, Depends(get_current_active_user_flexible)],  # noqa: ARG001  
     playlist_service: Annotated[PlaylistService, Depends(get_playlist_service)],
 ) -> MessageResponse:
-    """Unset the current playlist."""
-    await playlist_service.unset_current_playlist(current_user.id)
+    """Unset the global current playlist."""
+    await playlist_service.unset_current_playlist_global()
     return MessageResponse(message="Current playlist unset successfully")