import re
from functools import partial
from typing import Optional

from vkbottle.bot import Message
from vkbottle.framework.labeler import BotLabeler
from vkbottle_types.codegen.objects import GroupsGroup

import ai_agent
import utils
from messages import *

import vk.vk_database as database
from vk.utils import get_user_name_for_ai

labeler = BotLabeler()

bot_user: Optional[GroupsGroup] = None


# Обычные сообщения (не команды и не действия)
@labeler.chat_message()
async def any_message_handler(message: Message):
    chat_id = message.peer_id
    chat = database.DB.create_chat_if_not_exists(chat_id)
    if chat['active'] == 0:
        return

    # Игнорировать ботов
    if message.from_id < 0:
        return

    # Не учитывать служебные сообщения
    if message.action is not None:
        return

    user_id = message.from_id
    database.DB.create_user_if_not_exists(chat_id, user_id)
    database.DB.user_set_last_message(chat_id, user_id, utils.posix_time())
    database.DB.user_increment_messages(chat_id, user_id)

    global bot_user
    if bot_user is None:
        bot_user = (await message.ctx_api.groups.get_by_id()).groups[0]

    ai_message = ai_agent.Message()
    ai_fwd_messages: list[ai_agent.Message] = []

    # Ответ на сообщение бота
    if message.reply_message and message.reply_message.from_id == -bot_user.id:
        ai_message.text = message.text
    else:
        # Сообщение содержит @bot_username
        bot_username_mention = '@' + bot_user.screen_name
        if message.text is not None and message.text.find(bot_username_mention) != -1:
            ai_message.text = message.text.replace(bot_username_mention, bot_user.name)
        else:
            # Сообщение содержит [club<bot_id>|<some_name>]
            pattern = r"\[club" + str(bot_user.id) + r"\|(.+)]"
            if message.text is not None and re.search(pattern, message.text) is not None:
                ai_message.text = re.sub(pattern, r'\1', message.text)
            else:
                return

        if message.reply_message and len(message.reply_message.text) > 0:
            ai_fwd_messages.append(
                ai_agent.Message(user_name=await get_user_name_for_ai(message.ctx_api, message.reply_message.from_id),
                                 text=message.reply_message.text))
        else:
            for fwd_message in message.fwd_messages:
                if len(fwd_message.text) > 0:
                    ai_fwd_messages.append(
                        ai_agent.Message(user_name=await get_user_name_for_ai(message.ctx_api, fwd_message.from_id),
                                         text=fwd_message.text))

    if len(ai_message.text) == 0:
        await message.reply(MESSAGE_NOT_TEXT)
        return

    ai_message.user_name = await get_user_name_for_ai(message.ctx_api, message.from_id)
    chat_prompt = chat['ai_prompt']

    await message.reply(
        await utils.run_with_progress(
            partial(ai_agent.agent.get_group_chat_reply, chat_id, chat_prompt, ai_message, ai_fwd_messages),
            partial(message.ctx_api.messages.set_activity, peer_id=chat_id, type='typing'),
            interval=4))