import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken, getStorage } 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: 5000 // request timeout
})

// 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()
    // }
    if (getStorage()) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['token'] = getStorage()
    }
    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
    const statusCode = response.status

    // if the custom code is not 20000, it is judged as an error.
    if (statusCode !== 200) {
      Message({
        message: res.msg || response.message || 'Error',
        type: 'error',
        showClose: true,
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (statusCode === 401 || res.code === '5000' || res.code === 5000 || res.code === 50012 || res.code === 50014) {
        // to re-login
        MessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('logout').then(() => {
            location.href = 'http://120.46.131.15/#/login'
            // location.reload()
          })
        })
      }
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      if (!res.success) {
        Message({
          message: res.msg || 'Error',
          type: 'error',
          showClose: true,
          duration: 5 * 1000
        })
      }
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      showClose: true,
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service