main.py

#!/usr/bin/env python

# Copyright (C) 2022-2023, Matteo Collica (Matypist)
#
# This file is part of the "Telegram Groups Indexer Bot" (TGroupsIndexerBot)
# project, the original source of which is the following GitHub repository:
# <https://github.com/sapienzastudentsnetwork/tgroupsindexerbot>.
#
# TGroupsIndexerBot is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# TGroupsIndexerBot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with TGroupsIndexerBot. If not, see <http://www.gnu.org/licenses/>.

from os import getenv as os_getenv

import pytz
from telegram import __version__ as tg_ver
from telegram.constants import ParseMode
from telegram.ext import Application, CallbackQueryHandler, Defaults, MessageHandler, filters, ChatMemberHandler

from tgib.data.database import Database, SessionTable, AccountTable, ChatTable
from tgib.global_vars import GlobalVariables
from tgib.handlers.messages import Messages
from tgib.handlers.statuschanges import StatusChanges
from tgib.handlers.commands import Commands
from tgib.handlers.queries import Queries
from tgib.i18n.locales import Locale
from tgib.logs import Logger
from tgib.urlooking.github import GitHubMonitor

try:
    from telegram import __version_info__

except ImportError:
    __version_info__ = (0, 0, 0, 0, 0)  # type: ignore[assignment]

if __version_info__ < (20, 0, 0, "alpha", 1):
    raise RuntimeError(
        f"This code is not compatible with your current PTB version {tg_ver}. It requires a version later than v20.0."
    )


def add_application_handlers(application: Application):
    application.add_handlers([
        MessageHandler(filters=filters.StatusUpdate.MIGRATE,
                       callback=StatusChanges.migrate_handler),

        MessageHandler(filters=filters.COMMAND, callback=Commands.commands_handler),

        MessageHandler(filters=filters.TEXT, callback=Messages.text_messages_handler),

        CallbackQueryHandler(callback=Queries.callback_queries_handler),

        ChatMemberHandler(callback=StatusChanges.my_chat_member_handler,
                          chat_member_types=ChatMemberHandler.MY_CHAT_MEMBER)
    ])


def main() -> None:
    Logger.init_logger(os_getenv("EXCEPTION_LOG_CHAT_ID"), os_getenv("ADMIN_ACTIONS_LOG_CHAT_ID"))

    Locale.init_locales()

    Database.init_db()

    Queries.register_fixed_queries()

    defaults = Defaults(parse_mode=ParseMode.HTML, tzinfo=pytz.timezone('Europe/Rome'), disable_web_page_preview=True)

    application = Application.builder().token(os_getenv("TOKEN")).defaults(defaults).build()
    application: Application

    application.job_queue.run_once(callback=SessionTable.expire_old_sessions, when=0)

    add_application_handlers(application)

    application.job_queue.run_once(callback=ChatTable.fetch_chats, when=0, data=application.bot)

    GitHubMonitor.init(application.bot)

    GlobalVariables.set_accounts_count(AccountTable.get_account_records_count())

    GlobalVariables.bot_owner = os_getenv("OWNER_CHAT_ID")

    GlobalVariables.bot_instance = application.bot

    GlobalVariables.job_queue = application.job_queue

    GlobalVariables.contact_username = os_getenv("CONTACT_USERNAME")

    if not GlobalVariables.contact_username:
        GlobalVariables.contact_username = "username"

    application.job_queue.run_repeating(
        callback=GitHubMonitor.look_for_updates,
        interval=GitHubMonitor.interval,
        first=1
    )

    application.run_polling()


if __name__ == "__main__":
    main()