Update app.py

app.py

@@ -1,16 +1,33 @@
 import gradio as gr
 
+def respond(message, chat_history):
+    bot_reply = "You said: " + message  # Replace with your chatbot logic
+    chat_history = chat_history or []
+    chat_history.append(("You", message))
+    chat_history.append(("Bot", bot_reply))
+    return "", chat_history
+
+def say_hello(chat_history):
+    chat_history = chat_history or []
+    chat_history.append(("Bot", "Hello! How can I help?"))
+    return chat_history
+
+def clear():
+    return []
+
 with gr.Blocks() as demo:
     with gr.Row():
-        with gr.Column(scale=1):  # Sidebar column (narrow)
+        with gr.Column(scale=1):
             gr.Markdown("## Sidebar")
-            btn_hello = gr.Button("Say Hello")
-            btn_clear = gr.Button("Clear Chat")
-        
-        with gr.Column(scale=4):  # Chat area column (wide)
+            hello_btn = gr.Button("Say Hello")
+            clear_btn = gr.Button("Clear Chat")
+        with gr.Column(scale=4):
             chatbot = gr.Chatbot()
-            user_input = gr.Textbox(placeholder="Type your message...")
-            send_btn = gr.Button("Send")
-
+            msg = gr.Textbox(placeholder="Type a message")
+            send = gr.Button("Send")
 
+    send.click(respond, inputs=[msg, chatbot], outputs=[msg, chatbot])
+    hello_btn.click(say_hello, inputs=chatbot, outputs=chatbot)
+    clear_btn.click(clear, outputs=chatbot)
 
+demo.launch()