import axios from 'axios'
//此处忽略了部分非必要的导入
import {MessageBox, Message} from 'element-ui'

// create an axios instance
const service = axios.create({
//baseUrl请修改为你自己的url
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})
// 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 => {
    let disposition = response.headers['content-disposition'];
    //以下部分有需要优化，如后端返回时没有携带文件后缀名,没有.时会有问题等等
    console.log(disposition);
    let filename = disposition?disposition.substring(disposition.indexOf('=')+1,disposition.indexOf('.')):"下载文件";
    let newName = decodeURI(escape(filename))
    let extName =disposition.substring(disposition.indexOf('.')+1)
    let blob = new Blob([response.data],{type: 'application/vnd.ms-excel'});
    let link = document.createElement("a");
    let evt = document.createEvent("HTMLEvents");
    evt.initEvent("click", false, false);
    link.href = URL.createObjectURL(blob);
    link.download = newName+"."+extName;
    link.style.display = "none";
    document.body.appendChild(link);
    link.click();
    window.URL.revokeObjectURL(link.href);
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service