Update app.py

app.py

@@ -796,14 +796,21 @@ if __name__ == "__main__":
                                 ]
                             )
             
-            # New chat button
-            new_chat_button = gr.Button("➕ New Chat", elem_id="new-chat-button")
+            # New chat button and clear button
+            with gr.Row():
+                new_chat_button = gr.Button("➕ New Chat", elem_id="new-chat-button", scale=1)
+                # Check if variant parameter is supported for buttons
+                try:
+                    clear_button_kwargs = {"scale": 1}
+                    if 'variant' in gr.Button.__init__.__code__.co_varnames:
+                        clear_button_kwargs["variant"] = "secondary"
+                    clear_chat_button = gr.Button("🗑️ Clear Chat", **clear_button_kwargs)
+                except Exception as e:
+                    logger.warning(f"Error creating clear button with variant: {e}")
+                    clear_chat_button = gr.Button("🗑️ Clear Chat", scale=1)
         
-        # Clear functionality
-        chatbot.clear(
-            fn=clear, 
-            outputs=[current_langgraph_state, current_uuid_state]
-        )
+        # Clear functionality - implement manually since chatbot.clear() is not available in older Gradio versions
+        # We'll handle clearing through the clear chat button instead
         
         # Main chat interface - with compatibility checks
         chat_interface_kwargs = {
@@ -862,6 +869,25 @@ if __name__ == "__main__":
                 *followup_question_buttons,
             ]
         )
+        
+        # Clear chat button functionality
+        def clear_current_chat():
+            """Clear the current chat and reset state"""
+            new_state, new_uuid = clear()
+            # Clear followup buttons
+            cleared_buttons = [gr.Button(visible=False) for _ in range(FOLLOWUP_QUESTION_NUMBER)]
+            return [], new_state, new_uuid, *cleared_buttons
+        
+        clear_chat_button.click(
+            fn=clear_current_chat,
+            inputs=[],
+            outputs=[
+                chatbot,
+                current_langgraph_state,
+                current_uuid_state,
+                *followup_question_buttons
+            ]
+        )
 
         # Follow-up button functionality
         def click_followup_button(btn):