/**
 * 全站路由配置
 *
 * 建议:
 * 1. 代码中路由统一使用name属性跳转(不使用path属性)
 */
import Vue from 'vue'
import Router from 'vue-router'
import http from '@/utils/httpRequest'
import { isURL } from '@/utils/validate'
import { clearLoginInfo } from '@/utils'
import FULL_ROUTERS from "./full-routers";
import $api from "@/api/index.js"
import { Loading } from 'element-ui';

Vue.use(Router)

// 开发环境不使用懒加载, 因为懒加载页面太多的话会造成webpack热更新太慢, 所以只有生产环境使用懒加载
const _import = require('./import-' + process.env.NODE_ENV)

// 全局路由(无需嵌套上左右整体布局)
const globalRoutes = [
  { path: '/404', component: _import('common/404'), name: '404', meta: { title: '404未找到' } },
  { path: '/login', component: _import('common/login'), name: 'login', meta: { title: '登录' } },
  //test用，会员管理
]

// 主入口路由(需嵌套上左右整体布局)
const mainRoutes = {
  path: '/',
  component: _import('main'),
  name: 'main',
  redirect: { name: 'home' },
  meta: { title: '主入口整体布局' },
  children: [
    // 通过meta对象设置路由展示方式
    // 1. isTab: 是否通过tab展示内容, true: 是, false: 否
    // 2. iframeUrl: 是否通过iframe嵌套展示内容, '以http[s]://开头': 是, '': 否
    // 提示: 如需要通过iframe嵌套展示内容, 但不通过tab打开, 请自行创建组件使用iframe处理!
    { path: '/home', component: _import('common/home'), name: 'home', meta: { title: '首页' } },
    { path: '/theme', component: _import('common/theme'), name: 'theme', meta: { title: '主题' } },
    { path: '/demo-echarts', component: _import('demo/echarts'), name: 'demo-echarts', meta: { title: 'demo-echarts', isTab: true } }
  ],
  beforeEnter(to, from, next) {
    let token = Vue.cookie.get('token')
    if (!token || !/\S/.test(token)) {
      clearLoginInfo()
      next({ name: 'login' })
    }
    next()
  }
}

const router = new Router({
  mode: 'hash',
  // mode:"history",
  scrollBehavior: () => ({ y: 0 }),
  isAddDynamicMenuRoutes: false, // 是否已经添加动态(菜单)路由
  routes: globalRoutes.concat(mainRoutes)
})

router.beforeEach((to, from, next) => {
  console.log("beforeEach");
  // 添加动态(菜单)路由
  // 1. 已经添加 or 全局路由, 直接访问
  // 2. 获取菜单列表, 添加并保存本地存储
  if (router.options.isAddDynamicMenuRoutes || fnCurrentRouteType(to, globalRoutes) === 'global') {
    next()
  } else {
    let loadingInstance = Loading.service({
      text:"正在初始化中...",
      background:'rgba(255,255,255,0.7)'
    });
    $api.getUserInfo()
      .then(({ data }) => {
        const filterTreeData=(data, permissions) =>{
          return data;//临时性返回所有菜单方便调试
          return data.reduce((filtered, node) => {
            // 如果节点的权限在权限数组中
            if (permissions.includes(node.url)) {
              // 递归过滤子节点
              const list = filterTreeData(node.list || [], permissions);
              // 创建一个新的节点，包含过滤后的子节点
              filtered.push({
                ...node,
                list
              });
            }
            return filtered;
          }, []);
        }
        console.log(data);
        sessionStorage.setItem("userInfo", JSON.stringify(data.data));
        sessionStorage.setItem('permissions', JSON.stringify(data.data.permissions || '[]'))
        //添加全量菜单,根据权限进行过滤
        let _menu=filterTreeData(FULL_ROUTERS.menuList, data.data.permissions);
        fnAddDynamicMenuRoutes(_menu)
        sessionStorage.setItem('menuList', JSON.stringify(_menu))
        router.options.isAddDynamicMenuRoutes = true
        next({ ...to, replace: true })
      })
      .catch((e) => {
        sessionStorage.setItem('menuList', '[]')
        sessionStorage.setItem('permissions', '[]')
        console.log(`%c${e} 请求菜单列表和权限失败，跳转至登录页！！`, 'color:blue')
        router.push({ name: 'login' })
        next()
      })
      .finally(()=>{
        loadingInstance.close();
      })
    // http({
    //   url: '/sys/menu/nav',
    //   method: 'get',
    //   params: http.adornParams()
    // }).then(({ data }) => {
    //   if (data && data.code === 0) {
    //     // router.options.isAddDynamicMenuRoutes = true
    //     // sessionStorage.setItem('permissions', JSON.stringify(data.permissions || '[]'))
    //     next({ ...to, replace: true })
    //   } else {
    //     // sessionStorage.setItem('menuList', '[]')
    //     // sessionStorage.setItem('permissions', '[]')
    //     next()
    //   }
    // }).catch((e) => {
    //   console.log(`%c${e} 请求菜单列表和权限失败，跳转至登录页！！`, 'color:blue')
    //   router.push({ name: 'login' })
    // })
  }
})

/**
 * 判断当前路由类型, global: 全局路由, main: 主入口路由
 * @param {*} route 当前路由
 */
function fnCurrentRouteType(route, globalRoutes = []) {
  var temp = []
  for (var i = 0; i < globalRoutes.length; i++) {
    if (route.path === globalRoutes[i].path) {
      return 'global'
    } else if (globalRoutes[i].children && globalRoutes[i].children.length >= 1) {
      temp = temp.concat(globalRoutes[i].children)
    }
  }
  return temp.length >= 1 ? fnCurrentRouteType(route, temp) : 'main'
}

/**
 * 添加动态(菜单)路由
 * @param {*} menuList 菜单列表
 * @param {*} routes 递归创建的动态(菜单)路由
 */
function fnAddDynamicMenuRoutes(menuList = [], routes = []) {
  var temp = []
  for (var i = 0; i < menuList.length; i++) {
    if (menuList[i].list && menuList[i].list.length >= 1) {
      temp = temp.concat(menuList[i].list)
    } else if (menuList[i].url && /\S/.test(menuList[i].url)) {
      menuList[i].url = menuList[i].url.replace(/^\//, '')
      var route = {
        path: menuList[i].url.replace('/', '-'),
        component: null,
        name: menuList[i].url.replace('/', '-'),
        meta: {
          menuId: menuList[i].menuId,
          title: menuList[i].name,
          isDynamic: true,
          isTab: true,
          iframeUrl: '',
          isMicroApp:menuList[i].isMicroApp
        }
      }
      // url以http[s]://开头, 通过iframe展示,或者启用microApp框架
      if (isURL(menuList[i].url)) {
        route['path'] = `i-${menuList[i].menuId}`
        route['name'] = `i-${menuList[i].menuId}`
        route['meta']['iframeUrl'] = menuList[i].url
      } else {
        try {
          route['component'] = _import(`modules/${menuList[i].url}`) || null
        } catch (e) { }
      }
      routes.push(route)
    }
  }
  if (temp.length >= 1) {
    fnAddDynamicMenuRoutes(temp, routes)
  } else {
    mainRoutes.name = 'main-dynamic'
    mainRoutes.children = routes
    router.addRoutes([
      mainRoutes,
      { path: '*', redirect: { name: '404' } }
    ])
    sessionStorage.setItem('dynamicMenuRoutes', JSON.stringify(mainRoutes.children || '[]'))
    console.log('\n')
    console.log('%c!<-------------------- 动态(菜单)路由 s -------------------->', 'color:blue')
    console.log(mainRoutes.children)
    console.log('%c!<-------------------- 动态(菜单)路由 e -------------------->', 'color:blue')
  }
}

export default router