import asyncio
import re
import traceback
from typing import List, Union

from core.bots.aiogram.client import dp, bot
from core.bots.aiogram.tasks import MessageTaskManager, FinishedTasks
from core.elements import Plain, Image, MessageSession as MS, MsgInfo, Session, Voice, FetchTarget as FT, \
    ExecutionLockList, FetchedSession as FS, FinishedSession as FinS
from core.elements.message.chain import MessageChain
from core.elements.others import confirm_command
from core.logger import Logger
from database import BotDBUtil


class FinishedSession(FinS):
    def __init__(self, result: list):
        self.result = result

    async def delete(self):
        """
        用于删除这条消息。
        """
        try:
            for x in self.result:
                await x.delete()
        except Exception:
            traceback.print_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) -> FinishedSession:
        msgchain = MessageChain(msgchain)
        if not msgchain.is_safe and not disable_secret_check:
            return await self.sendMessage('https://wdf.ink/6Oup')
        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}')
            elif isinstance(x, Image):
                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__)}')
            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__)}')
            else:
                send_ = False
            if send_:
                send.append(send_)
            count += 1
        return FinishedSession(send)

    async def waitConfirm(self, msgchain=None, quote=True):
        ExecutionLockList.remove(self)
        send = None
        if msgchain is not None:
            msgchain = MessageChain(msgchain)
            msgchain.append(Plain('（发送“是”或符合确认条件的词语来确认）'))
            send = await self.sendMessage(msgchain, quote)
        flag = asyncio.Event()
        MessageTaskManager.add_task(self.session.sender, flag)
        await flag.wait()
        if msgchain is not None:
            await send.delete()
        if FinishedTasks.get()[self.session.sender].text in confirm_command:
            return True
        return False

    async def checkPermission(self):
        if self.session.message.chat.type == 'private' or self.target.senderInfo.check_TargetAdmin(
            self.target.targetId) 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 checkSuperUser(self):
        return True if self.target.senderInfo.query.isSuperUser else False

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

    async def sleep(self, s):
        ExecutionLockList.remove(self)
        await asyncio.sleep(s)

    async def delete(self):
        try:
            for x in self.session.message:
                await x.delete()
        except Exception:
            traceback.print_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='')
        self.session = Session(message=False, target=targetId, sender=targetId)
        self.parent = MessageSession(self.target, self.session)

    async def sendMessage(self, msgchain, disable_secret_check=False):
        """
        用于向获取对象发送消息。
        :param msgchain: 消息链，若传入str则自动创建一条带有Plain元素的消息链
        :param disable_secret_check: 是否禁用消息检查（默认为False）
        :return: 被发送的消息链
        """
        return await self.parent.sendMessage(msgchain, disable_secret_check=disable_secret_check, quote=False)


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):
        send_list = []
        if user_list is not None:
            for x in user_list:
                try:
                    send = await x.sendMessage(message)
                    send_list.append(send)
                except Exception:
                    traceback.print_exc()
        else:
            get_target_id = BotDBUtil.Module.get_enabled_this(module_name)
            for x in get_target_id:
                fetch = await FetchTarget.fetch_target(x)
                if fetch:
                    try:
                        send = await fetch.sendMessage(message)
                        send_list.append(send)
                    except Exception:
                        traceback.print_exc()
        return send_list