app.py

import telebot
import os

# Get token from HF Secrets
TOKEN = os.environ.get('BOT_TOKEN')
bot = telebot.TeleBot(TOKEN)

# Handle the /start command
@bot.message_handler(commands=['start'])
def send_welcome(message):
    bot.reply_to(message, "Hello World! Send me a number and I'll square it.")

# Handle text messages
@bot.message_handler(func=lambda message: True)
def calculate_square(message):
    text = message.text
    
    # Check if input is a number
    if text.isdigit():
        num = int(text)
        square = num * num
        bot.reply_to(message, f"According to HF, square of {num} is {square}")
    else:
        bot.reply_to(message, "I only accept numbers! (e.g., 5)")

# Start the 'Infinity Polling'
print("Bot is starting...")
bot.infinity_polling()