Update app.py

app.py

@@ -13,10 +13,6 @@ IS_SPACES = os.getenv("SPACE_ID") is not None or os.getenv("HF_SPACE") is not No
 # Add the current directory to Python path for Spaces environment
 sys.path.insert(0, str(Path(__file__).parent))
 
-# Global flag to prevent duplicate initialization
-_app_initialized = False
-_demo_created = False
-
 from openai import OpenAI
 from src.config import Config
 from src.vector_store import VectorStoreManager
@@ -241,68 +237,46 @@ def create_app():
 
 # Create the app for Hugging Face Spaces
 # Spaces will automatically detect Gradio and run this
-# Use module-level variable and flag to prevent duplicate initialization
-
-# Initialize demo variable to None
-demo = None
+# The demo variable must be exposed at module level for Spaces to detect it
 
-# Check if demo was already created (prevent duplicate initialization)
-if _demo_created and 'demo' in globals() and demo is not None:
-    print("⚠️  Demo already created, skipping duplicate initialization")
-    print(f"✅ Reusing existing demo: {type(demo)}")
-else:
-    # First time initialization
-    if not _app_initialized:
-        _app_initialized = True
-        try:
-            print("🔄 Starting app initialization (first time)...")
-            demo = create_app()
-            _demo_created = True
-            print("✅ App created successfully!")
-            print(f"✅ Demo type: {type(demo)}")
-        except Exception as e:
-            print(f"❌ Fatal error creating app: {e}")
-            import traceback
-            traceback.print_exc()
-            
-            # Create a minimal error interface
-            import gradio as gr
-            
-            def show_error():
-                return f"""
-                # ❌ Application Error
-                
-                **Fatal Error:** {str(e)}
-                
-                Please check:
-                1. OPENAI_API_KEY is set in Spaces Secrets
-                2. All required files are uploaded
-                3. Check the logs for detailed error information
-                
-                **Traceback:**
-                ```
-                {traceback.format_exc()}
-                ```
-                """
-            
-            demo = gr.Interface(
-                fn=show_error,
-                inputs=None,
-                outputs=gr.Markdown(),
-                title="CSRC Car Manual RAG System - Error",
-                description="An error occurred. Please check the logs."
-            )
-            _demo_created = True
-    else:
-        # App was initialized but demo not created (shouldn't happen)
-        print("⚠️  App initialized but demo not created, creating fallback...")
-        import gradio as gr
-        demo = gr.Interface(
-            fn=lambda: "App is initializing, please wait...",
-            inputs=None,
-            outputs="text",
-            title="CSRC Car Manual RAG System"
-        )
+try:
+    print("🔄 Starting app initialization...")
+    demo = create_app()
+    print("✅ App created successfully!")
+    print(f"✅ Demo type: {type(demo)}")
+    print(f"✅ Demo object: {demo}")
+except Exception as e:
+    print(f"❌ Fatal error creating app: {e}")
+    import traceback
+    traceback.print_exc()
+    
+    # Create a minimal error interface
+    import gradio as gr
+    
+    def show_error():
+        return f"""
+        # ❌ Application Error
+        
+        **Fatal Error:** {str(e)}
+        
+        Please check:
+        1. OPENAI_API_KEY is set in Spaces Secrets
+        2. All required files are uploaded
+        3. Check the logs for detailed error information
+        
+        **Traceback:**
+        ```
+        {traceback.format_exc()}
+        ```
+        """
+    
+    demo = gr.Interface(
+        fn=show_error,
+        inputs=None,
+        outputs=gr.Markdown(),
+        title="CSRC Car Manual RAG System - Error",
+        description="An error occurred. Please check the logs."
+    )
 
 # Note: Do NOT call demo.launch() here
 # Hugging Face Spaces will automatically detect and launch the demo