import router from './router'
import store from './store'
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'

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

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

const generateRoutes = async (to, from, next) => {
  const hasRoles = store.getters.roles && store.getters.roles.length > 0
  if (hasRoles) {
    next()
  } else {
    try {
      const {roles} = await store.dispatch('user/getCurrentUser')
      const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
      router.addRoutes(accessRoutes)
      next({...to, replace: true})
    } catch (error) {
      await store.dispatch('user/logout')
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
}

// 路由前置钩子，根据实际需求修改
router.beforeEach(async (to, from, next) => {
  NProgress.start()

  const isLogin = await store.dispatch('user/isLogin') // 或者user-token/isLogin

  if (isLogin) {
    if (to.path === '/login') {
      next({path: '/'})
      NProgress.done()
    } else {
      await generateRoutes(to, from, next)
    }
  } else {
    /* has not login*/
    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(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

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