from __future__ import annotations
from dataclasses import dataclass, field, asdict
import typing
from datetime import date
from telebot.types import ChatMember, Chat
import time
from threading import Thread

if typing.TYPE_CHECKING:
    from bot import Bot


@dataclass
class Community:
    chat_id: int  # Telegram chat id
    name: str = ''
    members: typing.List[int] = field(default_factory=list)
    pool: typing.List[typing.Tuple[int, int]] = field(default_factory=list)  # (user_id, number_of_copies)
    scheduled_meetings: typing.List[typing.Tuple[int, int, date]] = field(
        default_factory=list)  # (user_id_1, user_id_2, meeting date)
    archived_meetings: typing.List[typing.Tuple[int, int, date]] = field(default_factory=list)
    start_timestamp: int = field(default_factory=lambda: int(time.time()))

    def dict(self) -> dict:
        data = asdict(self)
        return data

    @classmethod
    def from_dict(cls, data: dict) -> Community:
        data = getattr(data, '__dict__', data)
        data_ = {key: data[key] for key in data.keys() if
                 key in ['chat_id', 'name', 'members', 'pool', 'scheduled_meetings', 'archived_meetings',
                         'start_timestamp']}
        self = cls(**data_)
        return self

    @classmethod
    def by_id(cls, chat_id: int, bot: Bot, create_if_not_exists=True) -> typing.Optional[Community]:
        data = bot.get_community_from_db({'chat_id': chat_id}, create_if_not_exists)
        if data is None:
            return None

        def upd_data():
            chat: Chat = bot.get_chat(chat_id)
            data.name = chat.title
            bot.save_community(data)

        Thread(target=upd_data).start()
        return data

    def add_member(self, user_id: int, bot: Bot) -> bool:
        chat_member_info: ChatMember = bot.get_chat_member(self.chat_id, user_id)
        if chat_member_info.is_member or chat_member_info.status in ['creator', 'administrator', 'admin']:
            self.members.append(user_id)
            bot.save_community(self)
            return True
        return False