Update app.py

app.py

@@ -211,9 +211,13 @@ def chat_interface(message, history):
         return "Please enter a question about NASA space biology research."
     
     try:
+        print(f"Processing query: {message}")  # Debug print
+        
         response = generate_enhanced_response(message)
         context_results = search_context(message, top_k=8)
         
+        print(f"Generated response length: {len(response)}")  # Debug print
+        
         # Format sources
         sources_info = f"Based on {len(context_results)} NASA research papers"
         if context_results:
@@ -232,6 +236,9 @@ def chat_interface(message, history):
         return formatted_response
         
     except Exception as e:
+        print(f"Error in chat_interface: {e}")  # Debug print
+        import traceback
+        traceback.print_exc()
         return f"❌ Error: {str(e)}"
 
 # Create Gradio interface
@@ -278,12 +285,20 @@ with gr.Blocks(title="NASA Bioscience AI (Lightweight)", theme=gr.themes.Soft())
     demo.load(load_models, outputs=gr.Textbox(visible=False))
     
     # Event handlers
-    msg.submit(lambda m, h: (m, h + [[m, None]]), [msg, chatbot], [msg, chatbot]).then(
-        lambda h: (h, chat_interface(h[-1][0], h)), chatbot, [chatbot, gr.Textbox(visible=False)]
-    )
-    send_btn.click(lambda m, h: (m, h + [[m, None]]), [msg, chatbot], [msg, chatbot]).then(
-        lambda h: (h, chat_interface(h[-1][0], h)), chatbot, [chatbot, gr.Textbox(visible=False)]
-    )
+    def respond(message, history):
+        """Handle user input and generate response"""
+        if not message.strip():
+            return history, ""
+        
+        # Generate response
+        response = chat_interface(message, history)
+        
+        # Add to history
+        history.append([message, response])
+        return history, ""
+    
+    msg.submit(respond, [msg, chatbot], [chatbot, msg])
+    send_btn.click(respond, [msg, chatbot], [chatbot, msg])
 
 if __name__ == "__main__":
     demo.launch()