Update app.py

app.py

@@ -85,13 +85,11 @@ def generate_response(
     messages.append({"role": "user", "content": first_msg})
 
     # Add conversation history ensuring alternating pattern (user, assistant, user, assistant...)
-    for i, (user_msg, bot_msg) in enumerate(history):
-        if i % 2 == 0:  # Even index: it's a user message
-            if user_msg:
-                messages.append({"role": "user", "content": user_msg})
-        else:  # Odd index: it's an assistant message
-            if bot_msg:
-                messages.append({"role": "assistant", "content": bot_msg})
+    for user_msg, bot_msg in history:
+        if user_msg.strip():  # Check if user message is not empty
+            messages.append({"role": "user", "content": user_msg})
+        if bot_msg.strip():  # Check if assistant message is not empty
+            messages.append({"role": "assistant", "content": bot_msg})
 
     try:
         response = ""
@@ -108,7 +106,7 @@ def generate_response(
     except Exception as e:
         print(f"Error generating response: {str(e)}")
         yield "I apologize, but I encountered an error while generating the response. Please try again."
-
+        
 @app.route('/')
 def index():
     """Serve the HTML page for the user interface"""