import axios from 'axios';//引入axios依賴
import { Message } from 'element-ui';
import Cookies from 'js-cookie'; //引入cookie操作依賴
import router from '@/router/index'//引入路由對(duì)象
axios.defaults.timeout = 5000;
axios.defaults.baseURL ='';
//http request 封裝請(qǐng)求頭
axios.interceptors.request.use(
 config => {
 var token = ''
 if(typeof Cookies.get('user') === 'undefined'){
 //此時(shí)為空
 }else {
 token = JSON.parse(Cookies.get('user')).token
 }//注意使用的時(shí)候需要引入cookie方法，推薦js-cookie
 config.data = JSON.stringify(config.data);
 config.headers = {
 'Content-Type':'application/json'
 }
 if(token != ''){
 config.headers.token = token;
 }
 return config;
 },
 error => {
 return Promise.reject(err);
 }
);
//http response 封裝后臺(tái)返回
axios.interceptors.response.use(
 response => {
 //當(dāng)返回信息為未登錄或者登錄失效的時(shí)候重定向?yàn)榈卿涰?yè)面
 if(response.data.code == 'W_100004' || response.data.message == '用戶未登錄或登錄超時(shí)，請(qǐng)登錄！'){
 router.push({
 path:"/",
 querry:{redirect:router.currentRoute.fullPath}//從哪個(gè)頁(yè)面跳轉(zhuǎn)
 })
 }
 return response;
 },
 error => {
 return Promise.reject(error)
 }
)
/**
 * 封裝get方法
 * @param url
 * @param data
 * @returns {Promise}
 */
export function fetch(url,params={}){
 return new Promise((resolve,reject) => {
 axios.get(url,{
 params:params
 })
 .then(response => {
 resolve(response.data);
 })
 .catch(err => {
 reject(err)
 })
 })
}
/**
 * 封裝post請(qǐng)求
 * @param url
 * @param data
 * @returns {Promise}
 */
export function post(url,data = {}){
 return new Promise((resolve,reject) => {
 axios.post(url,data)
 .then(response => {
 resolve(response.data);
 },err => {
 reject(err)
 })
 })
}
/**
 * 封裝導(dǎo)出Excal文件請(qǐng)求
 * @param url
 * @param data
 * @returns {Promise}
 */
export function exportExcel(url,data = {}){
 return new Promise((resolve,reject) => {
 axios({
 method: 'post',
 url: url, // 請(qǐng)求地址
 data: data, // 參數(shù)
 responseType: 'blob' // 表明返回服務(wù)器返回的數(shù)據(jù)類型
 })
 .then(response => {
 resolve(response.data);
 let blob = new Blob([response.data], {type: "application/vnd.ms-excel"});
 let fileName = "訂單列表_"+Date.parse(new Date())+".xls" ;
 if (window.navigator.msSaveOrOpenBlob) {
 navigator.msSaveBlob(blob, fileName);
 } else {
 var link = document.createElement('a');
 link.href = window.URL.createObjectURL(blob);
 link.download = fileName;
 link.click();
 window.URL.revokeObjectURL(link.href);
 }
 },err => {
 reject(err)
 })
 })
}
/**
 * 封裝patch請(qǐng)求
 * @param url
 * @param data
 * @returns {Promise}
 */
export function patch(url,data = {}){
 return new Promise((resolve,reject) => {
 axios.patch(url,data)
 .then(response => {
 resolve(response.data);
 },err => {
 reject(err)
 })
 })
}
/**
 * 封裝put請(qǐng)求
 * @param url
 * @param data
 * @returns {Promise}
 */
export function put(url,data = {}){
 return new Promise((resolve,reject) => {
 axios.put(url,data)
 .then(response => {
 resolve(response.data);
 },err => {
 reject(err)
 })
 })
}