Upload app.py

app.py

@@ -199,21 +199,82 @@ def create_app():
     
     # Build Gradio interface
     print("\n🌐 Building Gradio interface...")
-    interface_builder = GradioInterfaceBuilder(
-        rag_engine=components["rag_engine"],
-        question_generator=components["question_generator"],
-        knowledge_graph=components["knowledge_graph"],
-        config=components["config"],
-        user_profiling=components["user_profiling"],
-        adaptive_engine=components["adaptive_engine"],
-        proactive_engine=components["proactive_engine"]
-    )
-    
-    demo = interface_builder.create_interface()
-    return demo
+    try:
+        interface_builder = GradioInterfaceBuilder(
+            rag_engine=components["rag_engine"],
+            question_generator=components["question_generator"],
+            knowledge_graph=components["knowledge_graph"],
+            config=components["config"],
+            user_profiling=components["user_profiling"],
+            adaptive_engine=components["adaptive_engine"],
+            proactive_engine=components["proactive_engine"]
+        )
+        
+        print("📦 Creating interface components...")
+        demo = interface_builder.create_interface()
+        print("✅ Gradio interface created successfully!")
+        return demo
+    except Exception as e:
+        print(f"❌ Error building Gradio interface: {e}")
+        import traceback
+        traceback.print_exc()
+        
+        # Return error interface
+        import gradio as gr
+        error_msg = f"""
+        # ❌ Interface Building Error
+        
+        **Error:** {str(e)}
+        
+        **Possible solutions:**
+        1. Check Gradio version compatibility
+        2. Check the logs for detailed error information
+        3. Verify all dependencies are installed correctly
+        
+        **Traceback:**
+        ```
+        {traceback.format_exc()}
+        ```
+        """
+        
+        def error_display():
+            return error_msg
+        
+        error_interface = gr.Interface(
+            fn=error_display,
+            inputs=None,
+            outputs=gr.Markdown(),
+            title="CSRC Car Manual RAG System",
+            description="An error occurred while building the interface. Please check the logs."
+        )
+        return error_interface
 
 
 # Create the app for Hugging Face Spaces
 # Spaces will automatically detect Gradio and run this
-demo = create_app()
+# Use a guard to prevent multiple initializations (Spaces may import the module multiple times)
+_demo_initialized = False
+
+if not _demo_initialized:
+    try:
+        print("🔄 Initializing app...")
+        demo = create_app()
+        _demo_initialized = True
+        print("✅ App initialized successfully!")
+    except Exception as e:
+        print(f"❌ Error creating app: {e}")
+        import traceback
+        traceback.print_exc()
+        # Create a minimal error interface
+        import gradio as gr
+        demo = gr.Interface(
+            fn=lambda: f"Error: {str(e)}\n\nPlease check the logs for details.",
+            inputs=None,
+            outputs=gr.Textbox(),
+            title="CSRC Car Manual RAG System - Error",
+            description="An error occurred during initialization. Please check the logs."
+        )
+        _demo_initialized = True
+else:
+    print("ℹ️  App already initialized, reusing existing instance")