python.py

from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
from telegram.ext import Updater, CommandHandler, CallbackQueryHandler, MessageHandler, Filters, CallbackContext
import requests

TOKEN = 'YOUR_TELEGRAM_BOT_TOKEN'

updater = Updater(token=TOKEN, use_context=True)
dispatcher = updater.dispatcher
def start(update: Update, context: CallbackContext) -> None:
    welcome_message = "Welcome to the eSim purchase bot! Please select your country or region to start."
    # Display options for countries/regions
    keyboard = [
        [InlineKeyboardButton("Country/Region 1", callback_data='region_1')],
        [InlineKeyboardButton("Country/Region 2", callback_data='region_2')],
    ]
    reply_markup = InlineKeyboardMarkup(keyboard)
    update.message.reply_text(welcome_message, reply_markup=reply_markup)

start_handler = CommandHandler('start', start)
dispatcher.add_handler(start_handler)

def region_selection(update: Update, context: CallbackContext) -> None:
    query = update.callback_query
    query.answer()
    
    # Ask for duration and GB
    keyboard = [
        [InlineKeyboardButton("1 week - 1 GB", callback_data='1_week_1_gb')],
        [InlineKeyboardButton("1 month - 5 GB", callback_data='1_month_5_gb')],
    ]
    reply_markup = InlineKeyboardMarkup(keyboard)
    query.edit_message_text(text="Please select the duration and GB:", reply_markup=reply_markup)

dispatcher.add_handler(CallbackQueryHandler(region_selection, pattern='^region_'))

def product_selection(update: Update, context: CallbackContext) -> None:
    query = update.callback_query
    query.answer()
    
    # Ask for payment method
    keyboard = [
        [InlineKeyboardButton("Pay with TON", callback_data='pay_ton')],
        [InlineKeyboardButton("Pay with Wallet", callback_data='pay_wallet')],
    ]
    reply_markup = InlineKeyboardMarkup(keyboard)
    query.edit_message_text(text="Please select your payment method:", reply_markup=reply_markup)

dispatcher.add_handler(CallbackQueryHandler(product_selection, pattern='^[0-9]+_week|month_[0-9]+_gb$'))

def payment_processing(update: Update, context: CallbackContext) -> None:
    query = update.callback_query
    query.answer()

    # Simulate payment process
    payment_method = query.data
    if payment_method == 'pay_ton':
        # Process TON payment
        pass
    elif payment_method == 'pay_wallet':
        # Process Wallet payment
        pass

    # After payment, process the order
    response = requests.post('API_ENDPOINT_FOR_ORDER_PROCESSING', json={"payment_method": payment_method})
    order_data = response.json()

    # Generate QR code
    qr = qrcode.make(order_data['qr_code'])
    qr.save('qr_code.png')
    
    with open('qr_code.png', 'rb') as qr_file:
        query.message.reply_photo(photo=qr_file, caption="Here is your QR code to install the eSim.")
    
dispatcher.add_handler(CallbackQueryHandler(payment_processing, pattern='^pay_'))

def query_order(update: Update, context: CallbackContext) -> None:
    user_id = update.message.chat_id
    response = requests.get(f'API_ENDPOINT_FOR_ORDER_STATUS?user_id={user_id}')
    order_status = response.json()

    update.message.reply_text(f"Your order status is: {order_status['status']}")

query_order_handler = CommandHandler('order_status', query_order)
dispatcher.add_handler(query_order_handler)

def top_up_order(update: Update, context: CallbackContext) -> None:
    user_id = update.message.chat_id
    response = requests.post('API_ENDPOINT_FOR_TOP_UP', json={"user_id": user_id, "amount": "additional_data"})
    top_up_status = response.json()

    update.message.reply_text(f"Your top-up was successful. New balance: {top_up_status['new_balance']}")

top_up_order_handler = CommandHandler('top_up', top_up_order)
dispatcher.add_handler(top_up_order_handler)