from collections.abc import Callable
from dataclasses import dataclass
from datetime import datetime
import os
from pathlib import Path
import stat
import time
from types import TracebackType
from typing import Any, ClassVar

import httpx
from nonebot_plugin_uninfo import Uninfo
import pypinyin

from zhenxun.configs.config import Config
from zhenxun.services.log import logger

from .limiters import CountLimiter, FreqLimiter, UserBlockLimiter  # noqa: F401


@dataclass
class EntityIDs:
    user_id: str
    """用户id"""
    group_id: str | None
    """群组id"""
    channel_id: str | None
    """频道id"""


class ResourceDirManager:
    """
    临时文件管理器
    """

    temp_path: ClassVar[set[Path]] = set()

    @classmethod
    def __tree_append(cls, path: Path, deep: int = 1, current: int = 0):
        """递归添加文件夹"""
        if current >= deep and deep != -1:
            return
        path = path.resolve()  # 标准化路径
        for f in os.listdir(path):
            file = (path / f).resolve()  # 标准化子路径
            if file.is_dir():
                if file not in cls.temp_path:
                    cls.temp_path.add(file)
                    logger.debug(f"添加临时文件夹: {file}")
                cls.__tree_append(file, deep, current + 1)

    @classmethod
    def add_temp_dir(cls, path: str | Path, tree: bool = False, deep: int = 1):
        """添加临时清理文件夹，这些文件夹会被自动清理

        参数:
            path: 文件夹路径
            tree: 是否递归添加文件夹
            deep: 深度, -1 为无限深度
        """
        if isinstance(path, str):
            path = Path(path)
        if path not in cls.temp_path:
            cls.temp_path.add(path)
            logger.debug(f"添加临时文件夹: {path}")
        if tree:
            cls.__tree_append(path, deep)


def is_binary_file(file_path: str) -> bool:
    """判断是否为二进制文件

    参数:
        file_path: 文件路径

    返回:
        bool: 是否为二进制文件
    """
    # fmt: off
    # 精简但包含图片和字体的二进制文件扩展名集合
    BINARY_EXTENSIONS = frozenset({
        # 图片文件
        "jpg", "jpeg", "png", "gif", "bmp", "ico", "webp", "tiff", "tif", "svg",
        # 字体文件
        "ttf", "otf", "woff", "woff2", "eot",
        # 压缩文件
        "zip", "rar", "7z", "tar", "gz", "bz2", "xz",
        # 可执行文件和库
        "exe", "dll", "so", "dylib",
        # 文档文件
        "pdf", "doc", "docx", "xls", "xlsx", "ppt", "pptx",
        # 多媒体文件
        "mp3", "mp4", "avi", "mov", "wmv", "flv",
        # 其他常见二进制文件
        "bin", "dat", "db", "class", "pyc"
    })

    # 使用os.path.splitext高效提取扩展名
    _, ext = os.path.splitext(file_path)
    # 去除点号并转换为小写
    ext_clean = ext.lstrip(".").lower()

    return ext_clean in BINARY_EXTENSIONS


def cn2py(word: str) -> str:
    """将字符串转化为拼音

    参数:
        word: 文本
    """
    return "".join("".join(i) for i in pypinyin.pinyin(word, style=pypinyin.NORMAL))


async def get_user_avatar(uid: int | str) -> bytes | None:
    """快捷获取用户头像

    参数:
        uid: 用户id
    """
    url = f"http://q1.qlogo.cn/g?b=qq&nk={uid}&s=160"
    async with httpx.AsyncClient() as client:
        for _ in range(3):
            try:
                return (await client.get(url)).content
            except Exception:
                logger.error("获取用户头像错误", "Util", target=uid)
    return None


async def get_group_avatar(gid: int | str) -> bytes | None:
    """快捷获取用群头像

    参数:
        gid: 群号
    """
    url = f"http://p.qlogo.cn/gh/{gid}/{gid}/640/"
    async with httpx.AsyncClient() as client:
        for _ in range(3):
            try:
                return (await client.get(url)).content
            except Exception:
                logger.error("获取群头像错误", "Util", target=gid)
    return None


def change_pixiv_image_links(
    url: str, size: str | None = None, nginx_url: str | None = None
) -> str:
    """根据配置改变图片大小和反代链接

    参数:
        url: 图片原图链接
        size: 模式
        nginx_url: 反代

    返回:
        str: url
    """
    if size == "master":
        img_sp = url.rsplit(".", maxsplit=1)
        url = img_sp[0]
        img_type = img_sp[1]
        url = url.replace("original", "master") + f"_master1200.{img_type}"
    if not nginx_url:
        nginx_url = Config.get_config("pixiv", "PIXIV_NGINX_URL")
    if nginx_url:
        url = (
            url.replace("i.pximg.net", nginx_url)
            .replace("i.pixiv.cat", nginx_url)
            .replace("i.pixiv.re", nginx_url)
            .replace("_webp", "")
        )
    return url


def change_img_md5(path_file: str | Path) -> bool:
    """改变图片MD5

    参数:
        path_file: 图片路径

    返还:
        bool: 是否修改成功
    """
    try:
        with open(path_file, "a") as f:
            f.write(str(int(time.time() * 1000)))
        return True
    except Exception as e:
        logger.warning(f"改变图片MD5错误 Path：{path_file}", e=e)
    return False


def is_valid_date(date_text: str, separator: str = "-") -> bool:
    """日期是否合法

    参数:
        date_text: 日期
        separator: 分隔符

    返回:
        bool: 日期是否合法
    """
    try:
        datetime.strptime(date_text, f"%Y{separator}%m{separator}%d")
        return True
    except ValueError:
        return False


def get_entity_ids(session: Uninfo) -> EntityIDs:
    """获取用户id，群组id，频道id

    参数:
        session: Uninfo

    返回:
        EntityIDs: 用户id，群组id，频道id
    """
    user_id = session.user.id
    group_id = None
    channel_id = None
    if session.group:
        if session.group.parent:
            group_id = session.group.parent.id
            channel_id = session.group.id
        else:
            group_id = session.group.id
    return EntityIDs(user_id=user_id, group_id=group_id, channel_id=channel_id)


def is_number(text: str) -> bool:
    """是否为数字

    参数:
        text: 文本

    返回:
        bool: 是否为数字
    """
    try:
        float(text)
        return True
    except ValueError:
        return False


def win_on_rm_error(
    func: Callable[[str], Any],
    path: str,
    _exc_info: tuple[type[BaseException], BaseException, TracebackType],
) -> None:
    """Windows下删除只读文件/目录时的回调。

    去除只读属性后重试删除，避免 WinError 5。
    """
    try:
        os.chmod(path, stat.S_IWRITE)
    except Exception:
        # 即使去除权限失败也继续尝试
        pass
    try:
        func(path)
    except Exception:
        # 仍失败则记录调试日志并忽略，交由上层继续处理
        logger.debug(f"删除失败重试仍失败: {path}")