import router from './router'
import $store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login','/register'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login' || to.path === '/register') {
      // if is logged in, redirect to the home page
      next()
      NProgress.done()
    } else {
      try {
        const userInfo = await $store.dispatch('user/ActionUserInfo')
        $store.dispatch('permission/GenerateRoutes', userInfo).then(() => { // 生成可访问的路由表
          router.addRoutes($store.getters.addRouters) // 动态添加可访问路由表
          router.options.routes = $store.getters.addRouters
          next({ ...to, replace: true }) // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
        })
        next()
      } catch (error) {
        // remove token and go to login page to re-login
        await $store.dispatch('user/resetToken')
        Message.error(error || 'Has Error')
        next(`/login?redirect=${to.path}`)
        NProgress.done()
      }
      // const hasGetUserInfo = $store.getters.name
      // if (hasGetUserInfo) {
      //   next()
      // } else {
      // try {
      //   // get user info
      //   // await store.dispatch('user/getInfo')
      //   await $store.dispatch('user/ActionUserInfo')

      //   next()
      // } catch (error) {
      //   // remove token and go to login page to re-login
      //   await $store.dispatch('user/resetToken')
      //   Message.error(error || 'Has Error')
      //   next(`/login?redirect=${to.path}`)
      //   NProgress.done()
      // }
      // }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next({ name: 'login' })
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
