import asyncio
import time

from nonebot.adapters import Bot
from nonebot.matcher import Matcher
from nonebot_plugin_alconna import At
from nonebot_plugin_uninfo import Uninfo

from zhenxun.configs.config import Config
from zhenxun.models.ban_console import BanConsole
from zhenxun.models.plugin_info import PluginInfo
from zhenxun.services.cache import CacheRoot
from zhenxun.services.data_access import DataAccess
from zhenxun.services.db_context import DB_TIMEOUT_SECONDS
from zhenxun.services.log import logger
from zhenxun.utils.enum import CacheType, PluginType
from zhenxun.utils.utils import EntityIDs, get_entity_ids

from .config import LOGGER_COMMAND, WARNING_THRESHOLD
from .exception import SkipPluginException
from .utils import freq, send_message

Config.add_plugin_config(
    "hook",
    "BAN_RESULT",
    "才不会给你发消息.",
    help="对被ban用户发送的消息",
)


async def calculate_ban_time(ban_record: BanConsole | None) -> int:
    """根据ban记录计算剩余ban时间

    参数:
        ban_record: BanConsole记录

    返回:
        int: ban剩余时长，-1时为永久ban，0表示未被ban
    """
    if not ban_record:
        return 0

    if ban_record.duration == -1:
        return -1

    _time = time.time() - (ban_record.ban_time + ban_record.duration)
    if _time < 0:
        return int(abs(_time))
    await ban_record.delete()
    return 0


def check_plugin_type(matcher: Matcher) -> bool:
    """判断插件类型是否是隐藏插件

    参数:
        matcher: Matcher

    返回:
        bool: 是否为隐藏插件
    """
    if plugin := matcher.plugin:
        if metadata := plugin.metadata:
            extra = metadata.extra
            if extra.get("plugin_type") in [PluginType.HIDDEN]:
                return False
    return True


def format_time(time_val: float) -> str:
    """格式化时间

    参数:
        time_val: ban时长

    返回:
        str: 格式化时间文本
    """
    if time_val == -1:
        return "∞"
    time_val = abs(int(time_val))
    if time_val < 60:
        time_str = f"{time_val!s} 秒"
    else:
        minute = int(time_val / 60)
        if minute > 60:
            hours = minute // 60
            minute %= 60
            time_str = f"{hours} 小时 {minute}分钟"
        else:
            time_str = f"{minute} 分钟"
    return time_str


async def user_handle(
    plugin: PluginInfo, entity: EntityIDs, session: Uninfo, time_val: int
) -> None:
    """用户ban检查

    参数:
        module: 插件模块名
        entity: 实体ID信息
        session: Uninfo
        time_val: 剩余ban时间
    异常:
        SkipPluginException: 用户处于黑名单
    """
    start_time = time.time()
    try:
        ban_result = Config.get_config("hook", "BAN_RESULT")
        if not time_val:
            return
        time_str = format_time(time_val)

        if (
            plugin
            and time_val != -1
            and ban_result
            and freq.is_send_limit_message(plugin, entity.user_id, False)
        ):
            try:
                await asyncio.wait_for(
                    send_message(
                        session,
                        [
                            At(flag="user", target=entity.user_id),
                            f"{ban_result}\n在..在 {time_str} 后才会理你喔",
                        ],
                        entity.user_id,
                    ),
                    timeout=DB_TIMEOUT_SECONDS,
                )
            except asyncio.TimeoutError:
                logger.error(f"发送消息超时: {entity.user_id}", LOGGER_COMMAND)
        raise SkipPluginException("用户处于黑名单中...")
    finally:
        # 记录执行时间
        elapsed = time.time() - start_time
        if elapsed > WARNING_THRESHOLD:  # 记录耗时超过500ms的检查
            logger.warning(
                f"user_handle 耗时: {elapsed:.3f}s",
                LOGGER_COMMAND,
                session=session,
            )


async def auth_ban(
    matcher: Matcher, bot: Bot, session: Uninfo, plugin: PluginInfo
) -> None:
    """权限检查 - ban 检查

    参数:
        matcher: Matcher
        bot: Bot
        session: Uninfo
    """
    start_time = time.time()
    try:
        if not check_plugin_type(matcher):
            return
        if not matcher.plugin_name:
            return
        entity = get_entity_ids(session)
        if entity.user_id in bot.config.superusers:
            return

        cache_key = f"{entity.user_id}_{entity.group_id}"

        results = await CacheRoot.get(CacheType.BAN, cache_key)
        if not results:
            results = await BanConsole.is_ban(entity.user_id, entity.group_id)
            await CacheRoot.set(
                CacheType.BAN,
                cache_key,
                results or DataAccess._NULL_RESULT,
            )
        else:
            if results == DataAccess._NULL_RESULT:
                return
            tmp_results: list[BanConsole] = []
            for r in results:
                tmp_results.append(CacheRoot._deserialize_value(r, BanConsole))
            results = tmp_results

        for result in results:
            if not result.user_id and result.group_id:
                logger.debug(
                    f"群组{result.group_id}被ban: {result}",
                    target=f"{result.group_id}:{entity.user_id}",
                )
                raise SkipPluginException(f"群组: {result.group_id} 处于黑名单中...")
            if result.user_id:
                logger.debug(
                    f"用户{result.user_id}被ban: {result}",
                    target=f"{result.group_id}:{entity.user_id}",
                )
                await user_handle(plugin, entity, session, result.duration)

    finally:
        # 记录总执行时间
        elapsed = time.time() - start_time
        if elapsed > WARNING_THRESHOLD:  # 记录耗时超过500ms的检查
            logger.warning(
                f"auth_ban 总耗时: {elapsed:.3f}s, plugin={matcher.plugin_name}",
                LOGGER_COMMAND,
                session=session,
            )