KAWSAR_BD

import logging

from telegram import Update
from telegram.ext import (
    Application,
    MessageHandler,
    ContextTypes,
    filters,
)

BOT_TOKEN = "Bot token"
CHANNEL_ID = -1003627983357

logging.basicConfig(
    format="%(asctime)s - %(levelname)s - %(message)s",
    level=logging.INFO,
)

logger = logging.getLogger(__name__)


async def handle_channel_post(
    update: Update,
    context: ContextTypes.DEFAULT_TYPE
):
    message = update.channel_post

    if not message:
        return

    if message.chat.id != CHANNEL_ID:
        return

    if message.sender_chat is None:
        return
        
    if message.sender_chat.id != CHANNEL_ID:
        return

    if message.author_signature:
        logger.info(
            "KEEP signed post | message=%s | signature=%s",
            message.message_id,
            message.author_signature,
        )
        return

    try:
        await message.delete()

        logger.info(
            "DELETED anonymous channel post | message=%s",
            message.message_id,
        )

    except Exception as e:
        logger.error(
            "Failed to delete message %s: %s",
            message.message_id,
            e,
        )


def main():
    app = (
        Application.builder()
        .token(BOT_TOKEN)
        .build()
    )

    app.add_handler(
        MessageHandler(
            filters.UpdateType.CHANNEL_POST,
            handle_channel_post
        )
    )

    logger.info("Anonymous channel-post filter started.")

    app.run_polling(
        allowed_updates=["channel_post"]
    )


if __name__ == "__main__":
    main()