import store from '@/store'
import axios from 'axios'
import router from '@/router'
import { getTimeStamp } from '@/utils/auth'
import { Message } from 'element-ui'
// import { MessageBox, Message } from 'element-ui'
// import store from '@/store'
// import { getToken } from '@/utils/auth'
const timeout = 1 * 60 * 60 * 60

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor // axios的请求拦截器, 两个参数
service.interceptors.request.use(
  async config => {
    // 请求拦截器需要token的时候添加token
    if (store.getters.token && !config.headers.Authorization) { // 有token并且没有请求头
      // 先判断时间戳是否过期
      // 如果时间戳已经过期, 1. 退出登录 2. 跳转登录页 3. 拦截剩下的请求
      // 如果没过期, 给请求头添加token
      if (checkTimeout()) {
        await store.dispatch('user/logout')
        router.push('/login')
        // debugger
        return Promise.reject(new Error('登录已过期'))
      } else {
        config.headers.Authorization = `Bearer ${store.getters.token}` // 在请求头添加token
      }
    }
    return config
  }, err => {
    Message.error('请求失败')
    return Promise.reject(err)
  }
)

// 校验时间戳函数
const checkTimeout = () => {
  const loginTimeStamp = getTimeStamp()
  const nowTimeStamp = Date.now()
  return nowTimeStamp - loginTimeStamp > timeout
}
// response interceptor
// service.interceptors.response.use(
//   /**
//    * If you want to get http information such as headers or status
//    * Please return  response => response
//   */

//   /**
//    * Determine the request status by custom code
//    * Here is just an example
//    * You can also judge the status by HTTP Status Code
//    */
//   response => {
//     const res = response.data

//     // if the custom code is not 20000, it is judged as an error.
//     if (res.code !== 20000) {
//       Message({
//         message: res.message || 'Error',
//         type: 'error',
//         duration: 5 * 1000
//       })

//       // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
//       if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
//         // to re-login
//         MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
//           confirmButtonText: 'Re-Login',
//           cancelButtonText: 'Cancel',
//           type: 'warning'
//         }).then(() => {
//           store.dispatch('user/resetToken').then(() => {
//             location.reload()
//           })
//         })
//       }
//       return Promise.reject(new Error(res.message || 'Error'))
//     } else {
//       return res
//     }
//   },
//   error => {
//     console.log('err' + error) // for debug
//     Message({
//       message: error.message,
//       type: 'error',
//       duration: 5 * 1000
//     })
//     return Promise.reject(error)
//   }
// )

// 响应拦截器
service.interceptors.response.use(res => {
  const { message, data, success } = res.data
  if (success) {
    // 已经对res的成功与否进行处理, 直接返回data
    return data
  } else {
    Message.error(message || '系统错误') // 饿了么弹窗组件
    return Promise.reject(message) // 这里的reject是为了可以继续链式调用, 比如跳到login/index handleLogin catch
  }
}, err => {
  console.dir(err)
  // 提示错误
  Message.error(err.message)
  // reject
  return Promise.reject(err)
})

export default service