// 文件 api/request.js
import axios from 'axios';
import store from '@/store'
import { Mseeage,Loading } from 'element-ui'

let reqCount = 0
let tokenFail = null
let loading;

const service = axios.create({
	baseURL:process.env.VUE_API, // VUE_API 在.env.development等文件中配置的环境变量 不同环境下的请求地址
	timeout:6000, // 请求超时时间
})

// 请求拦截器
service.interceptors.request.use(
	requset => {
		reqCount++
		loading = Loading.service({
			fullScreen:true, // 全屏loading
			background:'transparent' , // 背景色
		})
		if(store.user.token){ // 请求头添加 token与userName
			request.headers.token = store.user.token
			request.headers.userName = store.user.userName
		}
		return request
	},
	error => {
		loading.close()
		return Promise.reject(error)
	}
)

// 响应拦截器
service.interceptors.response.use(
	response => {
		reqCount--
		if(reqCount === 0) loading.close()
		if(response.data.respCode === 111){ // token失效处理
			if(!tokenFail){
				tokenFail = setTimeOut(() => {
					store.dispatch('user/logout') // 退出登陆
					Message.error(response.data.message) // 提示语
					tokenFail = null
					return new Promise.reject(new Error('token已失效'))
				},200)
			}
		}
		return response.data
	},
	error => {
		loading.close()
		reqCount--
		return Promise.reject(error)
	}
)

export default service

// 封装请求方法
import requset from '@/api/request.js'

export const getData = (data) =>　{
	return requset({
		url:'xxx/xxx',
		methods:'POST/GET',
		data
	})
}