let hooks, pluginModule;

/**
 * type component  组件
 *      listener   监听函数
 * mulit 是否绑定多个监听函数
 *      
 */

hooks = {
  /**
   * 第三方登录 //可参考 yapi-plugin-qsso 插件
   */
  third_login: {
    type: 'component',
    mulit: false,
    listener: null
  },
  /**
   * 导入数据
   * @param Object importDataModule
   * 
   * @info
   * 可参考 vendors/exts/yapi-plugin-import-swagger插件
   * importDataModule = {}; 
   * 
   */
  import_data: {
    type: 'listener',
    mulit: true,
    listener: []
  },
  /**
   * 导出数据
   * @param Object exportDataModule
   * @param projectId
   * @info
   * exportDataModule = {}; 
   * exportDataModule.pdf = {
   *   name: 'Pdf',
   *   route: '/api/plugin/export/pdf',
   *   desc: '导出项目接口文档为 pdf 文件'
   * }
   */
  export_data: {
    type: 'listener',
    mulit: true,
    listener: []
  },
   /**
   * 接口页面 tab 钩子
   * @param InterfaceTabs
   * 
   * @info
   * 可参考 vendors/exts/yapi-plugin-advanced-mock
   * let InterfaceTabs = {
      view: {
        component: View,
        name: '预览'
      },
      edit: {
        component: Edit,
        name: '编辑'
      },
      run: {
        component: Run,
        name: '运行'
      }
    }
   */
  interface_tab: {
    type: 'listener',
    mulit: true,
    listener: []
  }
};

function bindHook(name, listener) {
  if (!name) throw new Error('缺少hookname');
  if (name in hooks === false) {
    throw new Error('不存在的hookname');
  }
  if (hooks[name].mulit === true) {
    hooks[name].listener.push(listener);
  } else {
    hooks[name].listener = listener;
  }

}

function emitHook(name, ...args) {
  if (!hooks[name]) throw new Error('不存在的hook name');
  let hook = hooks[name];
  if (hook.mulit === true && hook.type === 'listener') {
    if (Array.isArray(hook.listener)) {
      let promiseAll = [];
      hook.listener.forEach(item => {
        if (typeof item === 'function') {
          promiseAll.push(Promise.resolve(item.call(pluginModule, ...args)))
        }
      })
      return Promise.all(promiseAll);
    }
  } else if (hook.mulit === false && hook.type === 'listener') {
    if (typeof hook.listener === 'function') {
      return Promise.resolve(hook.listener.call(pluginModule, ...args));
    }
  } else if (hook.type === 'component') {
    return hook.listener;
  }

}

pluginModule = {
  hooks: hooks,
  bindHook: bindHook,
  emitHook: emitHook
}
let pluginModuleList;
try {
  pluginModuleList = require('./plugin-module.js');
} catch (err) { pluginModuleList = {} }


Object.keys(pluginModuleList).forEach(plugin => {
  if (!pluginModuleList[plugin]) return null;
  if (pluginModuleList[plugin] && typeof pluginModuleList[plugin].module === 'function') {
    pluginModuleList[plugin].module.call(pluginModule, pluginModuleList[plugin].options)
  }
})

module.exports = pluginModule;