import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// 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: 60000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    // config.headers['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8'  //此处是增加的代码，设置请求头的类型
    if (process.env.VUE_APP_BASE_API !== '/dev-api') {
      config.headers['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8'
      config.withCredentials = false
    }

    if (store.getters.token) {
      // let each request carry token
      // ['Authorization'] is a custom headers key
      // please modify it according to the actual situation
      if (process.env.VUE_APP_BASE_API === '/dev-api') {
        config.headers['X-Token'] = getToken()
      } else {
        config.headers['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

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 200) {
      Message({
        // message: res.msg + res.code,
        message: '请求超时',
        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('你已经注销登陆,你可以取消或重新登陆', '确认注销', {
          confirmButtonText: '重新登陆',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      if (res.code === 20002) {
        store.dispatch('user/resetToken').then(() => {
          location.reload()
        })
      }
      if (res.code === undefined) {
        return res
      } else {
        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)
  }
)

export default service