import asyncio
from loguru import logger
from .config import global_config


class WillingManager:
    def __init__(self):
        self.group_reply_willing = {}  # 存储每个群的回复意愿
        self._decay_task = None
        self._started = False
        self.min_reply_willing = 0.01
        self.attenuation_coefficient = 0.75

    async def _decay_reply_willing(self):
        """定期衰减回复意愿"""
        while True:
            await asyncio.sleep(5)
            for group_id in self.group_reply_willing:
                self.group_reply_willing[group_id] = max(
                    self.min_reply_willing,
                    self.group_reply_willing[group_id] * self.attenuation_coefficient
                )

    def get_willing(self, group_id: int) -> float:
        """获取指定群组的回复意愿"""
        return self.group_reply_willing.get(group_id, 0)

    def set_willing(self, group_id: int, willing: float):
        """设置指定群组的回复意愿"""
        self.group_reply_willing[group_id] = willing

    def change_reply_willing_received(self, group_id: int, topic: str, is_mentioned_bot: bool, config,
                                      user_id: int = None, is_emoji: bool = False, interested_rate: float = 0) -> float:

        # 若非目标回复群组，则直接return
        if group_id not in config.talk_allowed_groups:
            reply_probability = 0
            return reply_probability

        current_willing = self.group_reply_willing.get(group_id, 0)

        logger.debug(f"[{group_id}]的初始回复意愿: {current_willing}")

        # 根据消息类型（被cue/表情包）调控
        if is_mentioned_bot:
            current_willing = min(
                3.0,
                current_willing + 0.9
            )
            logger.debug(f"被提及, 当前意愿: {current_willing}")

        if is_emoji:
            current_willing *= 0.1
            logger.debug(f"表情包, 当前意愿: {current_willing}")

        # 兴趣放大系数，若兴趣 > 0.4则增加回复概率
        interested_rate_amplifier = global_config.response_interested_rate_amplifier
        logger.debug(f"放大系数_interested_rate: {interested_rate_amplifier}")
        interested_rate *= interested_rate_amplifier

        current_willing += max(
            0.0,
            interested_rate - 0.4
        )

        # 回复意愿系数调控，独立乘区
        willing_amplifier = max(
            global_config.response_willing_amplifier,
            self.min_reply_willing
        )
        current_willing *= willing_amplifier
        logger.debug(f"放大系数_willing: {global_config.response_willing_amplifier}, 当前意愿: {current_willing}")

        # 回复概率迭代，保底0.01回复概率
        reply_probability = max(
            (current_willing - 0.45) * 2,
            self.min_reply_willing
        )

        # 降低目标低频群组回复概率
        down_frequency_rate = max(
            1.0,
            global_config.down_frequency_rate
        )
        if group_id in config.talk_frequency_down_groups:
            reply_probability = reply_probability / down_frequency_rate

        reply_probability = min(reply_probability, 1)

        self.group_reply_willing[group_id] = min(current_willing, 3.0)
        logger.debug(f"当前群组{group_id}回复概率：{reply_probability}")
        return reply_probability

    def change_reply_willing_sent(self, group_id: int):
        """开始思考后降低群组的回复意愿"""
        current_willing = self.group_reply_willing.get(group_id, 0)
        self.group_reply_willing[group_id] = max(0, current_willing - 2)

    def change_reply_willing_after_sent(self, group_id: int):
        """发送消息后提高群组的回复意愿"""
        current_willing = self.group_reply_willing.get(group_id, 0)
        if current_willing < 1:
            self.group_reply_willing[group_id] = min(1, current_willing + 0.2)

    async def ensure_started(self):
        """确保衰减任务已启动"""
        if not self._started:
            if self._decay_task is None:
                self._decay_task = asyncio.create_task(self._decay_reply_willing())
            self._started = True


# 创建全局实例
willing_manager = WillingManager()