import Vue from 'vue'
import VueRouter from 'vue-router'
import Cookies from 'js-cookie'

import pathPosix from 'path-posix'
import _get from 'lodash.get'

Vue.use(VueRouter)

const routesMaker = ({publicPath, namePrefix, req}) => {
  const win2posix = pathString => pathString.split('\\').join('/')
  return req.keys().map(req).map(page => {
    // 每个文件的路径 已经转换为 posix
    const pagePath = pathPosix.dirname(win2posix(page.default.__file))
    // 路由中使用的路径
    const path = pagePath
      .replace(win2posix(publicPath), '')
      .replace(new RegExp('/page/', 'g'), '/')
    const name = `${namePrefix}${path.split('/').join('-')}`
    const route = {
      path: `${path}${_get(page, 'router.pathSuffix', '')}`,
      name,
      ...page.router,
      meta: { requiresAuth: true },
      component: page.default
    }
    console.log(JSON.stringify({
      path: route.path,
      name: route.name
    }))
    return route
  })
}

const routes = [
  // 首页
  {
    path: '/',
    redirect: { name: 'index' },
    component: resolve => { require(['@/components/core/MainLayout/index.vue'], resolve) },
    children: [
      {
        path: 'index',
        name: 'index',
        meta: { requiresAuth: true },
        component: resolve => { require(['@/pages/core/index/index.vue'], resolve) }
      }
    ]
  },
  {
    path: '/demo/plugins',
    name: 'demo-plugins',
    meta: { requiresAuth: true },
    redirect: { name: 'demo-plugins-index' },
    component: resolve => { require(['@/components/core/MainLayout/index.vue'], resolve) },
    children: routesMaker({
      publicPath: 'src/pages/demo/plugins/',
      namePrefix: 'demo-plugins-',
      req: require.context('@/pages/demo/plugins', true, /page\.vue$/)
    })
  },
  // 登陆
  {
    path: '/login',
    name: 'login',
    component: resolve => { require(['@/pages/core/login/index.vue'], resolve) }
  }
]

console.log(routes)

let router = new VueRouter({
  routes
})

router.beforeEach((to, from, next) => {
  // 需要身份校验
  if (to.meta.requiresAuth) {
    // 这里暂时将cookie里是否存有token作为验证是否登陆的条件
    // 请根据自身业务需要修改
    if (Cookies.get('token')) {
      next()
    } else {
      // 没有登陆的时候跳转到登陆界面
      next({
        name: 'login'
      })
    }
  } else {
    // 不需要身份校验 直接通过
    next()
  }
})

export default router