import os
import logging
from telegram import Update
from telegram.ext import Application, CommandHandler, ContextTypes

# --- Basic Setup ---
logging.basicConfig(
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO
)
logger = logging.getLogger(__name__)

# --- Configuration ---
# Get the Bot Token from Hugging Face Secrets. This is still the secure way.
TOKEN = os.getenv("TELEGRAM_TOKEN")

# --- IMPORTANT: Using the pre-generated proxy URL you provided ---
# This URL is now hardcoded directly into the application.
# The `/bot` at the end is required for the library to function correctly.
PREGENERATED_PROXY_URL = "https://tg.lgci.workers.dev/bot"


# --- Bot Command Handler ---
async def start_command(update: Update, context: ContextTypes.DEFAULT_TYPE):
    """Sends a confirmation message that the bot is working."""
    logger.info("Received /start command. Replying now.")
    await update.message.reply_text(
        "Hello! This bot is working using the pre-generated proxy at tg.lgci.workers.dev."
    )


# --- Main Bot Logic ---
def main() -> None:
    """The main function to set up and run the bot via the pre-generated proxy."""
    if not TOKEN:
        logger.error("FATAL: TELEGRAM_TOKEN not found in Hugging Face Secrets!")
        return

    logger.info(f"Initializing bot to use pre-generated API base: {PREGENERATED_PROXY_URL}")

    # Build the application, telling it to use the hardcoded proxy URL as the API endpoint.
    application = Application.builder().token(TOKEN).base_url(PREGENERATED_PROXY_URL).build()

    # Register the /start command handler
    application.add_handler(CommandHandler("start", start_command))

    # Start polling for updates through the proxy
    logger.info("Bot is starting, polling for updates...")
    application.run_polling()


if __name__ == "__main__":
    main()