/**
 * 全站http配置
 *
 * axios参数说明
 * isSerialize是否开启form表单提交
 * isToken是否需要token
 */
import axios from 'axios';
import store from '@/store/';
import router from '@/router/router';
import { serialize } from '@/util/util';
import { getToken } from '@/util/auth';
import { Message } from 'element-ui';
import website from '@/config/website';
import { Base64 } from 'js-base64';
import NProgress from 'nprogress';
import 'nprogress/nprogress.css';
import { array } from 'js-md5';

//默认超时时间
axios.defaults.timeout = 1200000;
//返回其他状态码
axios.defaults.validateStatus = function (status) {
  return status >= 200 && status <= 500;
};
//跨域请求，允许保存cookie
axios.defaults.withCredentials = true;
// NProgress 配置
NProgress.configure({
  showSpinner: false
});
//http request拦截
axios.interceptors.request.use(config => {
  //开启 progress bar
  NProgress.start();
  const meta = (config.meta || {});
  const isToken = meta.isToken === false;
  config.headers['Authorization'] = `Basic ${Base64.encode(`${website.clientId}:${website.clientSecret}`)}`;
  //让每个请求携带token
  if (getToken() && !isToken) {
    config.headers[website.tokenHeader] = 'bearer ' + getToken()
  }
  //headers中配置text请求
  if (config.text === true) {
    config.headers["Content-Type"] = "text/plain";
  }
  //headers中配置serialize为true开启序列化
  if (config.method === 'post' && meta.isSerialize === true) {
    config.data = serialize(config.data);
  }
  if (config.method == 'get' && config.params) {
    let url = config.url + '?';
    for (const propName of Object.keys(config.params)) {
      const value = config.params[propName];
      if (value !== null && typeof (value) !== "undefined") {
        if (value instanceof Array) {
          for (const key of Object.keys(value)) {
            let params = propName + '[' + key + ']';
            config.params[params] = value[key]
          }
          delete config.params[propName]
        }
      }
    }
  }
  return config
}, error => {
  return Promise.reject(error)
});
//http response 拦截
axios.interceptors.response.use(res => {
  //关闭 progress bar
  NProgress.done();
  //获取状态码
  const status = res.data.code || res.status;
  const statusWhiteList = website.statusWhiteList || [];
  const message = res.data.msg || res.data.error_description || '未知错误';
  //如果在白名单里则自行catch逻辑处理
  if (statusWhiteList.includes(status)) return Promise.reject(res);
  //如果是401则跳转到登录页面
  if (status === 401) store.dispatch('FedLogOut').then(() => router.push({ path: '/login' }));
  // 如果请求为非200否者默认统一处理
  if (status !== 200) {
    Message({
      message: message,
      type: 'error'
    });
    return Promise.reject(new Error(message))
  }
  return res;
}, error => {
  NProgress.done();
  return Promise.reject(new Error(error));
});

export default axios;