app.py

import gradio as gr
import random
import time
import threading
from questions import questions

# (Keep all the previous code for game_state, money_levels, timer_prompts, and game logic functions)

# ...

# Modify the chat function to handle empty messages
def chat(message, history):
    if message.strip() == "":
        return history, ""
    history = history or []
    bot_message = get_bot_response(message)
    history.append((message, bot_message))
    return history, ""

# Create the Gradio interface
with gr.Blocks() as demo:
    chatbot = gr.Chatbot()
    
    with gr.Row():
        msg = gr.Textbox(label="Type your message here", placeholder="Enter your message...")
        submit = gr.Button("Submit")
    
    clear = gr.Button("Clear")
    
    timer = gr.Number(value=60, label="Time Remaining", every=1)

    # Set up event handlers
    submit_click = submit.click(chat, inputs=[msg, chatbot], outputs=[chatbot, msg], queue=False)
    msg.submit(chat, inputs=[msg, chatbot], outputs=[chatbot, msg], queue=False)
    
    clear.click(lambda: None, None, chatbot, queue=False)
    
    timer.change(timer_update, inputs=[chatbot], outputs=[chatbot])
    demo.load(lambda: game_state["timer"], None, timer, every=1)

demo.launch()