from collections import defaultdict
from collections.abc import Callable
import copy
from datetime import datetime
from pathlib import Path
from typing import Any, Literal

import cattrs
from nonebot.compat import model_dump
from pydantic import BaseModel
from ruamel.yaml import YAML
from ruamel.yaml.scanner import ScannerError

from zhenxun.configs.path_config import DATA_PATH
from zhenxun.services.log import logger
from zhenxun.utils.enum import BlockType, LimitWatchType, PluginLimitType, PluginType

_yaml = YAML(pure=True)
_yaml.indent = 2
_yaml.allow_unicode = True


class Example(BaseModel):
    """
    示例
    """

    exec: str
    """执行命令"""
    description: str = ""
    """命令描述"""


class Command(BaseModel):
    """
    具体参数说明
    """

    command: str
    """命令"""
    params: list[str] = []
    """参数"""
    description: str = ""
    """描述"""
    examples: list[Example] = []
    """示例列表"""


class RegisterConfig(BaseModel):
    """
    注册配置项
    """

    key: str
    """配置项键"""
    value: Any
    """配置项值"""
    module: str | None = None
    """模块名"""
    help: str | None
    """配置注解"""
    default_value: Any | None = None
    """默认值"""
    type: Any = None
    """参数类型"""
    arg_parser: Callable | None = None
    """参数解析"""


class ConfigModel(BaseModel):
    """
    配置项
    """

    value: Any
    """配置项值"""
    help: str | None
    """配置注解"""
    default_value: Any | None = None
    """默认值"""
    type: Any = None
    """参数类型"""
    arg_parser: Callable | None = None
    """参数解析"""

    def to_dict(self, **kwargs):
        return model_dump(self, **kwargs)


class ConfigGroup(BaseModel):
    """
    配置组
    """

    module: str
    """模块名"""
    name: str | None = None
    """插件名"""
    configs: dict[str, ConfigModel] = defaultdict()
    """配置项列表"""

    def get(self, c: str, default: Any = None) -> Any:
        cfg = self.configs.get(c.upper())
        if cfg is not None:
            if cfg.value is not None:
                return cfg.value
            if cfg.default_value is not None:
                return cfg.default_value
        return default

    def to_dict(self, **kwargs):
        return model_dump(self, **kwargs)


class BaseBlock(BaseModel):
    """
    插件阻断基本类（插件阻断限制）
    """

    status: bool = True
    """限制状态"""
    check_type: BlockType = BlockType.ALL
    """检查类型"""
    watch_type: LimitWatchType = LimitWatchType.USER
    """监听对象"""
    result: str | None = None
    """阻断时回复内容"""
    _type: PluginLimitType = PluginLimitType.BLOCK
    """类型"""

    def to_dict(self, **kwargs):
        return model_dump(self, **kwargs)


class PluginCdBlock(BaseBlock):
    """
    插件cd限制
    """

    cd: int = 5
    """cd"""
    _type: PluginLimitType = PluginLimitType.CD
    """类型"""


class PluginCountBlock(BaseBlock):
    """
    插件次数限制
    """

    max_count: int
    """最大调用次数"""
    _type: PluginLimitType = PluginLimitType.COUNT
    """类型"""


class PluginSetting(BaseModel):
    """
    插件基本配置
    """

    level: int = 5
    """群权限等级"""
    default_status: bool = True
    """进群默认开关状态"""
    limit_superuser: bool = False
    """是否限制超级用户"""
    cost_gold: int = 0
    """调用插件花费金币"""


class SchedulerModel(BaseModel):
    trigger: Literal["date", "interval", "cron"]
    """trigger"""
    day: int | None = None
    """天数"""
    hour: int | None = None
    """小时"""
    minute: int | None = None
    """分钟"""
    second: int | None = None
    """秒"""
    run_date: datetime | None = None
    """运行日期"""
    id: str | None = None
    """id"""
    max_instances: int | None = None
    """最大运行实例"""
    args: list | None = None
    """参数"""
    kwargs: dict | None = None
    """参数"""


class Task(BaseBlock):
    module: str
    """被动技能模块名"""
    name: str
    """被动技能名称"""
    status: bool = True
    """全局开关状态"""
    create_status: bool = False
    """初次加载默认开关状态"""
    default_status: bool = True
    """进群时默认状态"""
    scheduler: SchedulerModel | None = None
    """定时任务配置"""
    run_func: Callable | None = None
    """运行函数"""
    check: Callable | None = None
    """检查函数"""
    check_args: list = []
    """检查函数参数"""


class PluginExtraData(BaseModel):
    """
    插件扩展信息
    """

    author: str | None = None
    """作者"""
    version: str | None = None
    """版本"""
    plugin_type: PluginType = PluginType.NORMAL
    """插件类型"""
    menu_type: str = "功能"
    """菜单类型"""
    admin_level: int | None = None
    """管理员插件所需权限等级"""
    configs: list[RegisterConfig] | None = None
    """插件配置"""
    setting: PluginSetting | None = None
    """插件基本配置"""
    limits: list[BaseBlock | PluginCdBlock | PluginCountBlock] | None = None
    """插件限制"""
    commands: list[Command] = []
    """命令列表，用于说明帮助"""
    tasks: list[Task] | None = None
    """技能被动"""
    superuser_help: str | None = None
    """超级用户帮助"""
    aliases: set[str] = set()
    """额外名称"""
    sql_list: list[str] | None = None
    """常用sql"""
    is_show: bool = True
    """是否显示在菜单中"""

    def to_dict(self, **kwargs):
        return model_dump(self, **kwargs)


class NoSuchConfig(Exception):
    pass


class ConfigsManager:
    """
    插件配置 与 资源 管理器
    """

    def __init__(self, file: Path):
        self._data: dict[str, ConfigGroup] = {}
        self._simple_data: dict = {}
        self._simple_file = DATA_PATH / "config.yaml"
        _yaml = YAML()
        if file:
            file.parent.mkdir(exist_ok=True, parents=True)
            self.file = file
            self.load_data()
        if self._simple_file.exists():
            try:
                with self._simple_file.open(encoding="utf8") as f:
                    self._simple_data = _yaml.load(f)
            except ScannerError as e:
                raise ScannerError(
                    f"{e}\n**********************************************\n"
                    f"****** 可能为config.yaml配置文件填写不规范 ******\n"
                    f"**********************************************"
                ) from e

    def set_name(self, module: str, name: str):
        """设置插件配置中文名出

        参数:
            module: 模块名
            name: 中文名称

        异常:
            ValueError: module不能为为空
        """
        if not module:
            raise ValueError("set_name: module不能为为空")
        if data := self._data.get(module):
            data.name = name

    def add_plugin_config(
        self,
        module: str,
        key: str,
        value: Any,
        *,
        help: str | None = None,
        default_value: Any = None,
        type: type | None = None,
        arg_parser: Callable | None = None,
        _override: bool = False,
    ):
        """为插件添加一个配置，不会被覆盖，只有第一个生效

        参数:
            module: 模块
            key: 键
            value: 值
            help: 配置注解.
            default_value: 默认值.
            type: 值类型.
            arg_parser: 值解析器，一般与webui配合使用.
            _override: 强制覆盖值.

        异常:
            ValueError: module和key不能为为空
            ValueError: 填写错误
        """

        if not module or not key:
            raise ValueError("add_plugin_config: module和key不能为为空")
        if module in self._data and (config := self._data[module].configs.get(key)):
            config.help = help
            config.arg_parser = arg_parser
            config.type = type
            if _override:
                config.value = value
                config.default_value = default_value
        else:
            key = key.upper()
            if not self._data.get(module):
                self._data[module] = ConfigGroup(module=module)
            self._data[module].configs[key] = ConfigModel(
                value=value,
                help=help,
                default_value=default_value,
                type=type,
            )

    def set_config(
        self,
        module: str,
        key: str,
        value: Any,
        auto_save: bool = False,
    ):
        """设置配置值

        参数:
            module: 模块名
            key: 配置名称
            value: 值
            auto_save: 自动保存.
        """
        key = key.upper()
        if module in self._data:
            if self._data[module].configs.get(key):
                self._data[module].configs[key].value = value
            else:
                self.add_plugin_config(module, key, value)
            self._simple_data[module][key] = value
            if auto_save:
                self.save(save_simple_data=True)

    def get_config(self, module: str, key: str, default: Any = None) -> Any:
        """获取指定配置值

        参数:
            module: 模块名
            key: 配置键
            default: 没有key值内容的默认返回值.

        异常:
            NoSuchConfig: 未查询到配置

        返回:
            Any: 配置值
        """
        logger.debug(
            f"尝试获取配置MODULE: [<u><y>{module}</y></u>] | KEY: [<u><y>{key}</y></u>]"
        )
        key = key.upper()
        value = None
        if module in self._data.keys():
            config = self._data[module].configs.get(key) or self._data[
                module
            ].configs.get(key)
            if not config:
                raise NoSuchConfig(
                    f"未查询到配置项 MODULE: [ {module} ] | KEY: [ {key} ]"
                )
            try:
                if config.arg_parser:
                    value = config.arg_parser(value or config.default_value)
                elif config.value is not None:
                    # try:
                    value = (
                        cattrs.structure(config.value, config.type)
                        if config.type
                        else config.value
                    )
                elif config.default_value is not None:
                    value = (
                        cattrs.structure(config.default_value, config.type)
                        if config.type
                        else config.default_value
                    )
            except Exception as e:
                logger.warning(
                    f"配置项类型转换 MODULE: [<u><y>{module}</y></u>]"
                    " | KEY: [<u><y>{key}</y></u>]",
                    e=e,
                )
                value = config.value or config.default_value
        if value is None:
            value = default
        logger.debug(
            f"获取配置 MODULE: [<u><y>{module}</y></u>] | "
            f" KEY: [<u><y>{key}</y></u>] -> [<u><c>{value}</c></u>]"
        )
        return value

    def get(self, key: str) -> ConfigGroup:
        """获取插件配置数据

        参数:
            key: 键，一般为模块名

        返回:
            ConfigGroup: ConfigGroup
        """
        return self._data.get(key) or ConfigGroup(module="")

    def save(self, path: str | Path | None = None, save_simple_data: bool = False):
        """保存数据

        参数:
            path: 路径.
            save_simple_data: 同时保存至config.yaml.
        """
        if save_simple_data:
            with open(self._simple_file, "w", encoding="utf8") as f:
                _yaml.dump(self._simple_data, f)
        path = path or self.file
        data = {}
        for module in self._data:
            data[module] = {}
            for config in self._data[module].configs:
                value = self._data[module].configs[config].dict()
                del value["type"]
                del value["arg_parser"]
                data[module][config] = value
        with open(path, "w", encoding="utf8") as f:
            _yaml.dump(data, f)

    def reload(self):
        """重新加载配置文件"""
        if self._simple_file.exists():
            with open(self._simple_file, encoding="utf8") as f:
                self._simple_data = _yaml.load(f)
        for key in self._simple_data.keys():
            for k in self._simple_data[key].keys():
                self._data[key].configs[k].value = self._simple_data[key][k]
        self.save()

    def load_data(self):
        """加载数据

        异常:
            ValueError: 配置文件为空！
        """
        if not self.file.exists():
            return
        with open(self.file, encoding="utf8") as f:
            temp_data = _yaml.load(f)
        if not temp_data:
            self.file.unlink()
            raise ValueError(
                "配置文件为空！\n"
                "***********************************************************\n"
                "****** 配置文件 plugins2config.yaml 为空，已删除，请重启 ******\n"
                "***********************************************************"
            )
        count = 0
        for module in temp_data:
            config_group = ConfigGroup(module=module)
            for config in temp_data[module]:
                config_group.configs[config] = ConfigModel(**temp_data[module][config])
                count += 1
            self._data[module] = config_group
        logger.info(
            f"加载配置完成，共加载 <u><y>{len(temp_data)}</y></u> 个配置组及对应"
            f" <u><y>{count}</y></u> 个配置项"
        )

    def get_data(self) -> dict[str, ConfigGroup]:
        return copy.deepcopy(self._data)

    def is_empty(self) -> bool:
        return not bool(self._data)

    def keys(self):
        return self._data.keys()

    def __str__(self):
        return str(self._data)

    def __setitem__(self, key, value):
        self._data[key] = value

    def __getitem__(self, key):
        return self._data[key]