Update app.py

app.py

@@ -240,7 +240,10 @@ def chat():
             if 'message' not in request.form:
                 logger.error("Missing 'message' in POST request form data.")
                 return jsonify({'error': 'Missing message parameter'}), 400
-            user_input = request.form['message']
+            user_input = request.form['message'].strip()
+            if not user_input:
+                logger.error("Empty message received.")
+                return jsonify({'error': 'Message cannot be empty'}), 400
             logger.info(f"Received chat input: {user_input}")
             reply = get_krishna_response(user_input)
             logger.info(f"Generated reply: {reply}")
@@ -250,10 +253,11 @@ def chat():
                     logger.info("Successfully saved chat message to Firebase.")
                 except Exception as e:
                     logger.error(f"Failed to save chat message to Firebase: {str(e)}")
+                    # Continue even if Firebase fails
             return jsonify({'reply': reply})
         try:
             chat_history = get_chat_history() if firebase_enabled else []
-            logger.info(f"Retrieved chat history: {chat_history}")
+            logger.info(f"Retrieved chat history: {len(chat_history)} messages")
         except Exception as e:
             logger.error(f"Failed to retrieve chat history from Firebase: {str(e)}")
             chat_history = []