import axios from 'axios'
import { Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import { loginUrl } from '@/api/user.js'

// 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
})

axios.defaults.withCredentials = true

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// 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
    return res
    // if the custom code is not 20000, it is judged as an error.
    // if (res.code !== 200) {
    //   // 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
    if (error && error.response) {
      switch (error.response.status) {
        case 400:
          error.message = '错误请求'
          break
        case 401:
          error.message = '未授权，请重新登录'
          break
        case 403:
          error.message = '拒绝访问'
          break
        case 404:
          error.message = '请求错误,未找到该资源'
          break
        case 405:
          error.message = '请求方法未允许'
          break
        case 408:
          error.message = '请求超时'
          break
        case 500:
          error.message = '服务器端出错'
          break
        case 501:
          error.message = '网络未实现'
          break
        case 502:
          error.message = '网络错误'
          break
        case 503:
          error.message = '服务不可用'
          break
        case 504:
          error.message = '网络超时'
          break
        case 505:
          error.message = 'http版本不支持该请求'
          break
        default:
          error.message = `未知错误${error.response.status}`
      }
      Message({
        message: error.message,
        type: 'warning',
        duration: 5 * 1000
      })
      if (error.response.status === 401) {
        location.href = loginUrl
      }
    } else {
      error.message = 'error'
      Message({
        message: error.message,
        type: 'warning',
        duration: 5 * 1000
      })
    }
    return Promise.reject(error)
  }
)

export default service