Bugs are fixed in the backend, it works now

web/backend/services/splitter.py

@@ -15,7 +15,9 @@ from backend.models.response import TaskStatus
 
 def run_split_task(task_id: str, tracklist: List[TracklistEntry], options: Dict[str, Any]) -> None:
     try:
-        task_manager.update_task(task_id, progress=5, message="Initializing...")
+        task_manager.update_task_with_progress(
+            task_id, progress=5, message="Initializing..."
+        )
 
         input_path = FileManager.get_input_path(task_id)
         if not input_path or not input_path.exists():
@@ -63,24 +65,45 @@ def run_split_task(task_id: str, tracklist: List[TracklistEntry], options: Dict[
 
         from audio_splitter.core import split_audio
 
-        task_manager.update_task(task_id, progress=10, message="Starting split...")
+        # We need to track progress from the core.
+        # Since the core doesn't have a progress callback, we'll update progress
+        # based on track list size (approximate).
+        total_tracks = len(tracks)
+        progress_base = 10  # Starting progress after init
+
+        task_manager.update_task_with_progress(
+            task_id, progress=progress_base, message="Starting split..."
+        )
+
+        # Run the split
+        # The core prints progress to stdout, but we can't easily capture it.
+        # We'll update progress based on track count.
+        # For now, we'll report progress after the split completes.
+        # A more advanced implementation would capture stdout or add a callback.
 
         split_audio(str(input_path), str(output_dir), tracks, args)
 
+        # After split completes, get the output files
         output_files = FileManager.get_output_files(task_id)
 
-        task_manager.update_task(
+        task_manager.update_task_with_progress(
             task_id,
-            status=TaskStatus.DONE,
             progress=100,
             message="Split complete",
+            status=TaskStatus.DONE
+        )
+
+        # Add tracks to the task state
+        task_manager.update_task(
+            task_id,
             tracks=output_files
         )
 
     except Exception as e:
-        task_manager.update_task(
+        task_manager.update_task_with_progress(
             task_id,
+            progress=0,
+            message="Split failed",
             status=TaskStatus.ERROR,
-            error=str(e),
-            message="Split failed"
+            error=str(e)
         )