Update app.py

app.py

@@ -63,19 +63,14 @@ def chat_completion(user_id, system_message, history, user_message, max_tokens,
 def respond(
     message, history, system_message, max_tokens, temperature, top_p, hf_token
 ):
-    user_id = "demo_user"  # Replace with actual user session ID or dynamic assignment
-
+    user_id = "demo_user"
     connected, paywall_msg = check_paywall(user_id)
     
     if not connected:
-        # Append paywall message as an assistant chat message
-        new_history = history + [{"role": "assistant", "content": paywall_msg}]
-        # Return as two identical chat histories per Gradio's expected output
-        return new_history, new_history
+        return paywall_msg  # ✅ Return just the message
     
     reply_text = chat_completion(user_id, system_message, history, message, max_tokens, temperature, top_p)
-    new_history = history + [{"role": "user", "content": message}, {"role": "assistant", "content": reply_text}]
-    return new_history, new_history
+    return reply_text  # ✅ Return just the reply
 
 # Gradio chat interface with additional inputs
 chatbot = gr.ChatInterface(