import re
import traceback
from typing import List, Union

from bots.aiogram.client import dp, bot
from config import Config
from core.builtins.message import MessageSession as MS
from core.elements import Plain, Image, MsgInfo, Session, Voice, FetchTarget as FT, FetchedSession as FS, \
    FinishedSession as FinS
from core.elements.message.chain import MessageChain
from core.logger import Logger
from core.utils import image_split
from database import BotDBUtil

enable_analytics = Config('enable_analytics')


class FinishedSession(FinS):
    async def delete(self):
        """
        用于删除这条消息。
        """
        try:
            for x in self.result:
                await x.delete()
        except Exception:
            Logger.error(traceback.format_exc())


class MessageSession(MS):
    class Feature:
        image = True
        voice = True
        embed = False
        forward = False
        delete = True
        quote = True
        wait = True

    async def sendMessage(self, msgchain, quote=True, disable_secret_check=False,
                          allow_split_image=True) -> FinishedSession:
        msgchain = MessageChain(msgchain)
        if not msgchain.is_safe and not disable_secret_check:
            return await self.sendMessage('https://wdf.ink/6Oup')
        self.sent.append(msgchain)
        count = 0
        send = []
        for x in msgchain.asSendable(embed=False):
            if isinstance(x, Plain):
                send_ = await bot.send_message(self.session.target, x.text,
                                               reply_to_message_id=self.session.message.message_id if quote
                                                                                                      and count == 0 and self.session.message else None)
                Logger.info(f'[Bot] -> [{self.target.targetId}]: {x.text}')
                send.append(send_)
                count += 1
            elif isinstance(x, Image):
                if allow_split_image:
                    split = await image_split(x)
                    for xs in split:
                        with open(await xs.get(), 'rb') as image:
                            send_ = await bot.send_photo(self.session.target, image,
                                                         reply_to_message_id=self.session.message.message_id
                                                         if quote
                                                            and count == 0
                                                            and self.session.message else None)
                            Logger.info(f'[Bot] -> [{self.target.targetId}]: Image: {str(xs.__dict__)}')
                            send.append(send_)
                            count += 1
                else:
                    with open(await x.get(), 'rb') as image:
                        send_ = await bot.send_photo(self.session.target, image,
                                                     reply_to_message_id=self.session.message.message_id
                                                     if quote
                                                        and count == 0
                                                        and self.session.message else None)
                        Logger.info(f'[Bot] -> [{self.target.targetId}]: Image: {str(x.__dict__)}')
                        send.append(send_)
                        count += 1
            elif isinstance(x, Voice):
                with open(x.path, 'rb') as voice:
                    send_ = await bot.send_audio(self.session.target, voice,
                                                 reply_to_message_id=self.session.message.message_id if quote
                                                                                                        and count == 0 and self.session.message else None)
                    Logger.info(f'[Bot] -> [{self.target.targetId}]: Voice: {str(x.__dict__)}')
                    send.append(send_)
                    count += 1

        msgIds = []
        for x in send:
            msgIds.append(x.message_id)
        return FinishedSession(msgIds, send)

    async def checkPermission(self):
        if self.session.message.chat.type == 'private' or self.target.senderId in self.custom_admins \
            or self.target.senderInfo.query.isSuperUser:
            return True
        admins = [member.user.id for member in await dp.bot.get_chat_administrators(self.session.message.chat.id)]
        if self.session.sender in admins:
            return True
        return False

    async def checkNativePermission(self):
        if self.session.message.chat.type == 'private':
            return True
        admins = [member.user.id for member in await dp.bot.get_chat_administrators(self.session.message.chat.id)]
        if self.session.sender in admins:
            return True
        return False

    def asDisplay(self):
        return self.session.message.text

    async def delete(self):
        try:
            for x in self.session.message:
                await x.delete()
        except Exception:
            Logger.error(traceback.format_exc())

    class Typing:
        def __init__(self, msg: MS):
            self.msg = msg

        async def __aenter__(self):
            # await bot.answer_chat_action(self.msg.session.target, 'typing')
            pass

        async def __aexit__(self, exc_type, exc_val, exc_tb):
            pass


class FetchedSession(FS):
    def __init__(self, targetFrom, targetId):
        self.target = MsgInfo(targetId=f'{targetFrom}|{targetId}',
                              senderId=f'{targetFrom}|{targetId}',
                              targetFrom=targetFrom,
                              senderFrom=targetFrom,
                              senderName='',
                              clientName='Telegram', messageId=0, replyId=None)
        self.session = Session(message=False, target=targetId, sender=targetId)
        self.parent = MessageSession(self.target, self.session)


class FetchTarget(FT):
    name = 'Telegram'

    @staticmethod
    async def fetch_target(targetId) -> Union[FetchedSession, bool]:
        matchChannel = re.match(r'^(Telegram\|.*?)\|(.*)', targetId)
        if matchChannel:
            return FetchedSession(matchChannel.group(1), matchChannel.group(2))
        else:
            return False

    @staticmethod
    async def fetch_target_list(targetList: list) -> List[FetchedSession]:
        lst = []
        for x in targetList:
            fet = await FetchTarget.fetch_target(x)
            if fet:
                lst.append(fet)
        return lst

    @staticmethod
    async def post_message(module_name, message, user_list: List[FetchedSession] = None):
        if user_list is not None:
            for x in user_list:
                try:
                    await x.sendDirectMessage(message)
                    if enable_analytics:
                        BotDBUtil.Analytics(x).add('', module_name, 'schedule')
                except Exception:
                    Logger.error(traceback.format_exc())
        else:
            get_target_id = BotDBUtil.TargetInfo.get_enabled_this(module_name, "Telegram")
            for x in get_target_id:
                fetch = await FetchTarget.fetch_target(x.targetId)
                if fetch:
                    try:
                        await fetch.sendDirectMessage(message)
                        if enable_analytics:
                            BotDBUtil.Analytics(fetch).add('', module_name, 'schedule')
                    except Exception:
                        Logger.error(traceback.format_exc())