// import Vue from 'vue'
import axios from 'axios'
// import router from '@/router'
import qs from 'qs'
import merge from 'lodash/merge'

// 超时后重新请求
axios.defaults.retry = 2
axios.defaults.retryDelay = 1000

const http = axios.create({
  timeout: 1000 * 30,
  withCredentials: true,
  headers: {
    'Content-Type': 'application/json; charset=utf-8',
  },
})

http.cancelToken = () => {
  // var CancelToken =
  // var source = CancelToken.source();
  return axios.CancelToken
}

/**
 * 请求拦截
 */
http.interceptors.request.use(
  config => {
    // config.headers['token'] = Vue.cookie.get('token') // 请求头带上token
    config.headers['token'] = localStorage.getItem('token')
    return config
  },
  error => {
    return Promise.reject(error)
  },
)

/**
 * 响应拦截
 */
http.interceptors.response.use(
  response => {
    if (response.data && response.data.code === 401) {
      // 401, token失效
      // alert("登录失效,请重新登录！")
      // router.push({
      //   name: 'login',
      // })
    }
    return response
  },
  error => {
    // return Promise.reject(error)

    var config = error.config
    if (!config || !config.retry) return Promise.reject(error)

    config.__retryCount = config.__retryCount || 0

    if (config.__retryCount >= config.retry) {
      return Promise.reject(error)
    }

    config.__retryCount += 1

    var backoff = new Promise(function (resolve) {
      setTimeout(function () {
        resolve()
      }, config.retryDelay || 1)
    })

    // Return the promise in which recalls axios to retry the request
    return backoff.then(function () {
      return axios(config)
    })
  },
)

/**
 * 请求地址处理
 * @param {*} actionName action方法名称
 */
http.adornUrl = actionName => {
  // 非生产环境 && 开启代理, 接口前缀统一使用[/proxyApi/]前缀做代理拦截!
  return (
    (process.env.NODE_ENV !== 'production' && process.env.OPEN_PROXY
      ? '/proxyApi/'
      : window.PORRAL.baseUrl) + actionName
  )
}

/**
 * get请求参数处理
 * @param {*} params 参数对象
 * @param {*} openDefultParams 是否开启默认参数?
 */
http.adornParams = (params = {}, openDefultParams = true) => {
  var defaults = {
    t: new Date().getTime(),
  }
  return openDefultParams ? merge(defaults, params) : params
}

/**
 * post请求数据处理
 * @param {*} data 数据对象
 * @param {*} openDefultdata 是否开启默认数据?
 * @param {*} contentType 数据格式
 *  json: 'application/json; charset=utf-8'
 *  form: 'application/x-www-form-urlencoded; charset=utf-8'
 */
http.adornData = (data = {}, openDefultdata = true, contentType = 'json') => {
  var defaults = {
    t: new Date().getTime(),
  }
  data = openDefultdata ? merge(defaults, data) : data
  return contentType === 'json' ? JSON.stringify(data) : qs.stringify(data)
}

export default http