Update app.py

app.py

@@ -56,16 +56,37 @@ def chat_handler(message, history):
 
 # UI wiring for the Chat tab
 with gr.Tab("Chat"):
-    chatbot = gr.Chatbot(label="Programming Assistant")
-    chat_input = gr.Textbox(label="Ask anything about programming...", placeholder="e.g. 'generate python: http scraper'")
+    # Chatbot using new 'messages' format
+    chatbot = gr.Chatbot(label="Programming Assistant", type="messages")
+    chat_input = gr.Textbox(label="Ask anything about programming...", placeholder="e.g. 'generate python: scraper'")
     send_btn = gr.Button("Send")
     clear_btn = gr.Button("Clear")
 
-    # Note: the callback must return the updated chat history (single output mapped to chatbot)
+    # Callback for chat
+    def chat_handler(message, history):
+        history = history or []
+        msg = (message or "").strip()
+        if not msg:
+            history.append({"role": "assistant", "content": "Please type a question!"})
+            return history
+
+        # Simple AI placeholder logic
+        low = msg.lower()
+        if "generate" in low:
+            reply = "Tell me the language and a short description, e.g. 'python: web scraper'"
+        elif "fix" in low:
+            reply = "Paste your code and error message; I can suggest fixes."
+        else:
+            reply = "I can generate, explain, and fix code. Try: generate, fix, explain."
+
+        # Use 'messages' format
+        history.append({"role": "user", "content": message})
+        history.append({"role": "assistant", "content": reply})
+        return history
+
+    # Wire buttons and submit inside Blocks context
     send_btn.click(chat_handler, inputs=[chat_input, chatbot], outputs=chatbot)
-    # Allow pressing Enter in textbox to send
     chat_input.submit(chat_handler, inputs=[chat_input, chatbot], outputs=chatbot)
-    # Clear chat: set chatbot to empty list
     clear_btn.click(lambda: [], None, chatbot, queue=False)