import gradio as gr
import random
import time

with gr.Blocks() as demo:
    chatbot = gr.Chatbot()
    btn = gr.Button(value="Submit")
    btn.visible = False
    msg = gr.Textbox()
    clear = gr.ClearButton([msg, chatbot])

    def respond(message, chat_history):
        # bot_message = random.choice(["How are you?", "I love you", "I'm very hungry"])
        bot_message = "Hello! Click the link below:<br><a href='https://www.baidu.com' target='_blank'>Visit Example.com</a>"
        chat_history.append((message, bot_message))
        time.sleep(2)
        print(chat_history)
        btn.visible = True
        gr.update(value="", interactive=True)
        return "", chat_history,btn

    msg.submit(respond, [msg, chatbot], [msg, chatbot])

if __name__ == "__main__":
    demo.launch()