feat: Enhance stream processing and SocketIO services with app context management

app/services/stream_processing_service.py

@@ -30,13 +30,18 @@ class StreamProcessingService:
         os.getenv("STREAM_MAX_CONCURRENT", "2")
     )
     _downloads_dir: str = "sounds/temp"
+    _app_instance = None  # Store the Flask app instance
 
     @classmethod
-    def initialize(cls) -> None:
+    def initialize(cls, app=None) -> None:
         """Initialize the stream processing service."""
         if cls._is_running:
             return
 
+        # Store the Flask app instance if provided
+        if app:
+            cls._app_instance = app
+
         # Create necessary directories
         os.makedirs(cls._downloads_dir, exist_ok=True)
         os.makedirs("sounds/stream", exist_ok=True)
@@ -83,18 +88,21 @@ class StreamProcessingService:
     @classmethod
     def _worker_thread(cls) -> None:
         """Worker thread for processing streams."""
-        from app import create_app
-
-        # Create app context for database operations
-        app = create_app()
-
         while True:
             try:
                 # Get stream ID from queue with timeout
                 stream_id = cls._processing_queue.get(timeout=1)
 
-                with app.app_context():
-                    cls._process_stream(stream_id)
+                # Use the stored app instance for database operations
+                if cls._app_instance:
+                    with cls._app_instance.app_context():
+                        cls._process_stream(stream_id)
+                else:
+                    # Fallback: import create_app if no app instance stored
+                    from app import create_app
+                    app = create_app()
+                    with app.app_context():
+                        cls._process_stream(stream_id)
 
                 cls._processing_queue.task_done()