import * as path from 'path';
import botlogger from './logger.js';
import type {WSSendParam as MessageContext } from 'node-napcat-ts/dist/Interfaces.js';
// 读取配置文件
import {Botconfig as config} from './config.js'
const CMD_PREFIX = config?.cmd?.prefix??'#'; 
import { fileURLToPath } from 'node:url';
import { assert } from 'node:console';
// 参数类型枚举
export const ParamType = {
    String: "string" as const,
    Number: "number" as const,
    Boolean: "boolean" as const,
    Rest: "rest" as const
} as const;

// 从对象值中获取类型
export type ParamType = typeof ParamType[keyof typeof ParamType];

// 参数元数据接口
interface ParamMetadata {
    name: string; // 参数名称
    type: ParamType; // 参数类型
    index: number; // 参数索引
    optional: boolean; // 是否可选
}

// 存储参数元数据
export const paramMetadata = new Map<Function, ParamMetadata[]>();

// 修改参数装饰器
export function param(name: string, type: ParamType = ParamType.String, optional:boolean = false): ParameterDecorator {

return function(target: any, propertyKey: string | symbol | undefined, parameterIndex: number): void {
    const actualPropertyKey = propertyKey!;
        const fn = target[actualPropertyKey];
        let metadata = paramMetadata.get(fn);
        
        if (!metadata) {
            metadata = [];
            paramMetadata.set(fn, metadata);
        }
        
        const paramData: ParamMetadata = {
            name,
            type,
            index: parameterIndex,
            optional: optional
        };

        metadata[parameterIndex] = paramData;
    };
}
// 更新 Plugin 接口
export interface Plugin {
    id: string;
    name: string;
    commands: Command[];
    class: any;
    version?: string;
    author?: string;
    describe?: string;
}
// 修改插件装饰器配置接口
export interface PluginConfig {
    id: string;// 插件ID
    name: string;// 插件名称
    version?: string;// 插件版本
    describe?: string;// 插件描述
    author?: string;// 插件作者
    help?: {// 帮助命令配置,使用框架默认的帮助配置
        enabled?: boolean;      // 是否启用帮助命令
        command?: string[];     // 帮助命令
        description?: string;   // 帮助命令描述
    };
}

// 在 decorators.ts 中定义统一的接口
export interface Command {
    cmd: string;        // 命令名称
    desc: string;       // 命令描述
    fn: Function;       // 命令函数
    aliases?: string[]; // 命令别名
    cmdPrefix: string;  // 命令前缀
    pluginId: string;   // 插件ID
    class: new () => any;
    template?: {
        enabled: boolean;   // 是否启用模板
        sendText: boolean;  // 是否发送文本
        [key: string]: any; // 其他模板配置
    };
}



// 修改插件装饰器
export function plugins(config: PluginConfig): ClassDecorator {
    return function (target: any): void {
        // 保存插件配置
        target.prototype.plugincfg = config;
        
        // 确保插件名称正确
        const existingPlugin = commandList.find((x) => x.class === target);
        let plugin: Plugin;
        
        if (existingPlugin) {
            // 更新现有插件的配置
            existingPlugin.name = config.name;
            plugin = existingPlugin;
        } else {
            // 添加新插件
            plugin = {
                id: config.id,
                name: config.name,
                class: target,
                commands: [] as Command[]
            };
            commandList.push(plugin);
            // 添加调试日志
            botlogger.info(`发现插件: ${config.name}[${config.version}],插件类: ${target.name}`);
        }

        // 添加帮助命令
        if (config.help?.enabled !== false) {
            const helpCommand: Command = {
                cmd: 'help',
                desc: config.help?.description || "显示帮助信息",
                aliases: ['帮助', '?'],
                template: {
                    enabled: true,
                    sendText: false
                },
                cmdPrefix: CMD_PREFIX,
                pluginId: config.id,
                class: target,
                fn: async function(): Promise<object> {
                    const plugin = commandList.find(p => p.class === target);
                    if (!plugin) {
                        return {
                            message: "错误: 找不到插件信息"
                        };
                    }
                    // 过滤并格式化命令列表
                    const commands = plugin.commands
                        .filter(cmd => !cmd.cmd.endsWith('help'))
                        .map(cmd => {
                            const fullCmd = `${CMD_PREFIX}${plugin.id} ${cmd.cmd}`;
                            const aliases = cmd.aliases?.map(alias => 
                                `${CMD_PREFIX}${plugin.id} ${alias}`
                            ) || [];
                            
                            return {
                                name: cmd.cmd,
                                fullCmd,
                                desc: cmd.desc,
                                aliases
                            };
                        });
                        
                    const __dirname = path.dirname(fileURLToPath(import.meta.url));
                    // 返回支持模板的响应对象
                    return {
                        title: plugin.name,
                        version: config.version || '',
                        description: config.describe || '',
                        author: config.author || '',
                        commands,
                        pluginId: plugin.id,
                        cmdPrefix: CMD_PREFIX,
                        template: {
                            name: 'help',
                            path: path.join(__dirname, '..', 'resources', 'help', 'help.html'),
                            enabled: true,
                            sendText: false,
                            render: {
                                width: 800,
                                height: 600,
                                type: 'png',
                                quality: 100,
                                fullPage: false,
                                background: true
                            }
                        },
                        toString() {
                            const commandsText = commands.map(cmd => {
                                let text = `${cmd.fullCmd} - ${cmd.desc}`;
                                if (cmd.aliases.length > 0) {
                                    text += `\n  别名: ${cmd.aliases.join(', ')}`;
                                }
                                return text;
                            }).join('\n');

                            return [
                                `=== ${plugin.name} ===`,
                                `版本: ${config.version}`,
                                config.describe ? `描述: ${config.describe}` : '',
                                config.author ? `作者: ${config.author}` : '',
                                '',
                                '可用命令:',
                                commandsText
                            ].filter(Boolean).join('\n');
                        }
                    };
                }
            };

            plugin.commands.push(helpCommand);
            botlogger.info(`成功注册[${plugin.id}]帮助命令: ${CMD_PREFIX}${plugin.id} help`);
        }
    };
}



// 存储命令的数组
export const commandList: Plugin[] = [];

// 添加模板配置接口
interface TemplateConfig {
    enabled: boolean;
    sendText: boolean;
    [key: string]: any;
}

// 修改命令装饰器配置
interface CommandConfig {
    template?: TemplateConfig;
    [key: string]: any;
}

// 修改 runcod 装饰器
/**
 * 运行命令装饰器
 * @param cmd - 命令名称或别名数组
 * @param desc - 命令描述
 * @param config - 命令配置
 */
//权限
export function runcod(cmd: string | string[], desc: string, config: CommandConfig = {}, IsTest = false): MethodDecorator {
    return function(target: any, propertyKey: string | symbol, descriptor: PropertyDescriptor) {
        // 延迟执行命令注册
        const originalMethod = descriptor.value;
        descriptor.value = function(...args: any[]) {
            // 获取插件配置
            const pluginConfig = target.constructor.prototype.plugincfg;
            if (!pluginConfig) {
                botlogger.error(`未找到插件配置: ${target.constructor.name}`);
                return originalMethod.apply(this, args);
            }
            
            const pluginName = pluginConfig.name;
            
            // 获取或创建插件的命令列表
            let plugin = commandList.find((p: Plugin) => p.class === target.constructor);
            if (!plugin) {
                plugin = {
                    id: pluginConfig.id,
                    name: pluginName,
                    commands: [] as Command[],
                    class: target.constructor
                };
                commandList.push(plugin);
                botlogger.info(`创建新插件: ${pluginName}`);
            }

            // 如果命令还没有注册
            if (!descriptor.value.isCommand) {
                const cmdList = Array.isArray(cmd) ? cmd : [cmd];
                const allCmds = cmdList.map(c => c);

                // 第一个命令作为主命令，其他的作为别名
                const [mainCmd, ...aliases] = allCmds;
                
                // 添加命令
                const command: Command = {
                    cmd: mainCmd,
                    desc,
                    fn: descriptor.value,
                    aliases,
                    cmdPrefix: CMD_PREFIX,
                    pluginId: plugin.id,
                    class: target.constructor,
                    template: {
                        enabled: !IsTest,
                        sendText: IsTest, // 默认不发送文本,
                        ...(config.template || {})
                    }
                };
                
                plugin.commands.push(command);

                // 修改日志输出
                botlogger.info(`注册插件${plugin.id}命令: ${CMD_PREFIX}${plugin.id} ${mainCmd} 成功`);
                
                // 添加命令标记
                descriptor.value.isCommand = true;
                descriptor.value.cmd = Array.isArray(cmd) ? cmd[0] : cmd;
                descriptor.value.desc = desc;
                descriptor.value.aliases = Array.isArray(cmd) ? cmd.slice(1) : [];
            }
            
            return originalMethod.apply(this, args);
        };
        
        return descriptor;
    };
}


// 添加定时任务装饰器
export function schedule(cron: string): MethodDecorator {
    return function(target: any, propertyKey: string | symbol, descriptor: PropertyDescriptor) {
        // 保存原始方法
        const originalMethod = descriptor.value;

        // 添加定时任务标记
        descriptor.value.isScheduled = true;
        descriptor.value.cron = cron;
        descriptor.value.methodName = propertyKey;

        // 返回修改后的描述符
        return descriptor;
    };
}