from datetime import date, timedelta

import facet
from aiogram import Bot
from aiogram.enums import ParseMode
from apscheduler.schedulers.asyncio import AsyncIOScheduler
from apscheduler.triggers.cron import CronTrigger

from birthday_pool_bot.repositories import RepositoriesContainer
from .settings import NotificationsSettings


class NotificationsService(facet.AsyncioServiceMixin):
    def __init__(
            self,
            settings: NotificationsSettings,
            repositories_container: RepositoriesContainer,
    ):
        self._settings = settings
        self._repositories_container = repositories_container
        self._bot = Bot(token=self._settings.telegram_bot_token)

    async def start(self):
        scheduler = AsyncIOScheduler()
        scheduler.add_job(
            func=self.send_notifications,
            name="send_notifications",
            trigger=CronTrigger.from_crontab(self._settings.cron),
        )
        scheduler.start()

    async def send_notifications(self):
        birthday = date.today() + timedelta(days=2)

        users_repository = self._repositories_container.users
        subscriptions_repository = self._repositories_container.subscriptions

        async with users_repository.transaction():
            users = await users_repository.get_users_by_birthdays(
                birthday=birthday,
            )
        if not users:
            return

        async with subscriptions_repository.transaction():
            subscriptions = await subscriptions_repository.get_to_users_subscriptions(
                to_users_ids={user.id for user in users},
                with_from_user=True,
                with_to_user=True,
                with_pool=True,
            )
        if not subscriptions:
            return

        for subscription in subscriptions:
            if subscription.from_user.telegram_id is None:
                continue

            text = (
                f"У {subscription.name} скоро день рождения: *{birthday.strftime('%d %B')}*\n\n"
            )
            if subscription.pool is not None:
                if subscription.pool.owner_id == subscription.from_user.id:
                    text += "Вы собираете деньги на подарок\n\n"
                else:
                    text += (
                        "Вы подписаны на сбор денег для подарка, вы можете отправить их сюда:\n"
                        f"_Телефон_: {subscription.pool.payment_data.phone}\n"
                        f"_Банк_: {subscription.pool.payment_data.bank.value}\n\n"
                    )
            elif subscription.to_user.gift_payment_data is not None:
                text += (
                    f"Вы можете отправить именнинику свой подарок сюда:\n"
                    f"_Телефон_: {subscription.to_user.gift_payment_data.phone}\n"
                    f"_Банк_: {subscription.to_user.gift_payment_data.bank.value}\n\n"
                )

            await self._bot.send_message(
                text=text,
                parse_mode=ParseMode.MARKDOWN,
                chat_id=subscription.from_user.telegram_id,
            )