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import threading
import typing

from sqlalchemy import BigInteger, Boolean, Column, String, distinct, func

from Database.sql import BASE, SESSION


class GroupLogs(BASE):
    __tablename__ = "log_channels"
    chat_id = Column(String(14), primary_key=True)
    log_channel = Column(String(14), nullable=False)

    def __init__(self, chat_id, log_channel):
        self.chat_id = str(chat_id)
        self.log_channel = str(log_channel)


class LogChannelSettings(BASE):
    __tablename__ = "log_channel_setting"
    chat_id = Column(BigInteger, primary_key=True)
    log_joins = Column(Boolean, default=True)
    log_leave = Column(Boolean, default=True)
    log_warn = Column(Boolean, default=True)
    log_action = Column(Boolean, default=True)
    # log_media = Column(Boolean)
    log_report = Column(Boolean, default=True)

    def __init__(
        self,
        chat_id: int,
        log_join: bool,
        log_leave: bool,
        log_warn: bool,
        log_action: bool,
        log_report: bool,
    ):
        self.chat_id = chat_id
        self.log_warn = log_warn
        self.log_joins = log_join
        self.log_leave = log_leave
        self.log_report = log_report
        self.log_action = log_action

    def toggle_warn(self) -> bool:
        self.log_warn = not self.log_warn
        SESSION.commit()
        return self.log_warn

    def toggle_joins(self) -> bool:
        self.log_joins = not self.log_joins
        SESSION.commit()
        return self.log_joins

    def toggle_leave(self) -> bool:
        self.log_leave = not self.log_leave
        SESSION.commit()
        return self.log_leave

    def toggle_report(self) -> bool:
        self.log_report = not self.log_report
        SESSION.commit()
        return self.log_report

    def toggle_action(self) -> bool:
        self.log_action = not self.log_action
        SESSION.commit()
        return self.log_action


GroupLogs.__table__.create(checkfirst=True)
LogChannelSettings.__table__.create(checkfirst=True)

LOGS_INSERTION_LOCK = threading.RLock()
LOG_SETTING_LOCK = threading.RLock()
CHANNELS = {}


def get_chat_setting(chat_id: int) -> typing.Optional[LogChannelSettings]:
    with LOG_SETTING_LOCK:
        return SESSION.query(LogChannelSettings).get(chat_id)


def set_chat_setting(setting: LogChannelSettings):
    with LOGS_INSERTION_LOCK:
        res: LogChannelSettings = SESSION.query(LogChannelSettings).get(setting.chat_id)
        if res:
            res.log_warn = setting.log_warn
            res.log_action = setting.log_action
            res.log_report = setting.log_report
            res.log_joins = setting.log_joins
            res.log_leave = setting.log_leave
        else:
            SESSION.add(setting)
    SESSION.commit()


def set_chat_log_channel(chat_id, log_channel):
    with LOGS_INSERTION_LOCK:
        res = SESSION.query(GroupLogs).get(str(chat_id))
        if res:
            res.log_channel = log_channel
        else:
            res = GroupLogs(chat_id, log_channel)
            SESSION.add(res)

        CHANNELS[str(chat_id)] = log_channel
        SESSION.commit()


def get_chat_log_channel(chat_id):
    return CHANNELS.get(str(chat_id))


def stop_chat_logging(chat_id):
    with LOGS_INSERTION_LOCK:
        res = SESSION.query(GroupLogs).get(str(chat_id))
        if res:
            if str(chat_id) in CHANNELS:
                del CHANNELS[str(chat_id)]

            log_channel = res.log_channel
            SESSION.delete(res)
            SESSION.commit()
            return log_channel


def num_logchannels():
    try:
        return SESSION.query(func.count(distinct(GroupLogs.chat_id))).scalar()
    finally:
        SESSION.close()


def migrate_chat(old_chat_id, new_chat_id):
    with LOGS_INSERTION_LOCK:
        chat = SESSION.query(GroupLogs).get(str(old_chat_id))
        if chat:
            chat.chat_id = str(new_chat_id)
            SESSION.add(chat)
            if str(old_chat_id) in CHANNELS:
                CHANNELS[str(new_chat_id)] = CHANNELS.get(str(old_chat_id))

        SESSION.commit()


def __load_log_channels():
    global CHANNELS
    try:
        all_chats = SESSION.query(GroupLogs).all()
        CHANNELS = {chat.chat_id: chat.log_channel for chat in all_chats}
    finally:
        SESSION.close()


__load_log_channels()