import traceback

from config.tasks import mail_admins
from telegram import Update
from telegram.ext import ContextTypes

from django.conf import settings
from django.utils.translation import gettext as _


async def command_unknown(update: Update,
                          context: ContextTypes.DEFAULT_TYPE) -> None:
    if update.effective_chat:
        await context.bot.send_message(chat_id=update.effective_chat.id,
                                       text=_("Unknown command."))


async def handle_stacktrace(update: object,
                      context: ContextTypes.DEFAULT_TYPE) -> None:

    ignored_errors = [
        'httpx HTTPError: [Errno -2] Name or service not known',
        "Forbidden: bot can't initiate conversation with a user",
        'Forbidden: bot was blocked by the user',
        'Message is not modified: specified new message content and reply markup are exactly the same as a current content and reply markup of the message'
    ]

    message = f'ERROR on update: {update}'
    if context.error:
        tb_list = traceback.format_exception(
            None,
            context.error,
            context.error.__traceback__,
        )
    tb_string = ''.join(tb_list)

    message = f'{message}\n{tb_string}'[:20000]

    if not settings.DEBUG and str(context.error) not in ignored_errors:
        mail_admins(subject="Telegram bot error", message=message)