"use strict";

import axios from "axios";
import store from "@/store";
import { getAllPromise } from "@/utils/tools";
import { objKeySort, dateChange } from "@/filters";
import { Toast } from "vant";
import md5 from "js-md5";
import { getCookie } from "@/utils/cookie";
// 完整配置参考:  https://github.com/axios/axios#request-config
axios.defaults.headers.post["Content-Type"] = "application/json;charset=utf-8";

let config = {
  baseURL: process.env.BASE_URL || process.env.VUE_APP_JTXT_URL || "",
  timeout: 60 * 1000,
  withCredentials: false,
  crossDomain: true
};

const _axios = axios.create(config);

// 注册all方法，执行多个并发请求
// 可传入Promise、包含Promise的数组、返回值为Promise的方法
_axios.all = (...requsets) => {
  // 获取所有Promise对象
  let promiseList = getAllPromise(requsets);
  return new Promise((resolve, reject) => {
    axios.all(promiseList)
      .then(axios.spread((...response) => {
        // 两个请求现在都执行完成
        resolve(response);
      }))
      .catch(error => {
        reject(error);
      });
  });
};

_axios.interceptors.request.use(
  config => {
    if (config.url.includes("api/sys/file")) {
      // 上传图片请求，不带请求头参数
    } else {
      let paramsNew = "";
      if (config.method === "get" && config.params) {
        paramsNew = objKeySort(config.params);
      } else if (config.method === "post" && config.data) {
        paramsNew = objKeySort(config.data);
      }
      config.headers.common["Content-Type"] = "application/json;charset=utf-8";
      config.headers.common["Access-Control-Allow-Origin"] = "*";
      config.headers.common["userSig"] = "userSig";
      config.headers.common["clientType"] = "h5";
      config.headers.common["timestamp"] = dateChange();
      config.headers.common["sign"] = md5(encodeURIComponent(paramsNew + config.headers.common.clientType + config.headers.common.timestamp + "n8R7vPaF3nJc"));
      config.headers.common["Authorization"] = getCookie("token");
    }
    return config;
  },
  error => {
    return Promise.reject(error);
  }
);

// 拦截响应
_axios.interceptors.response.use(
  response => {
    // 用来判断是否请求成功
    const success = response.status === 200;
    let message = "";
    if (!success) {
      if (typeof response.data === "string") {
        message = "服务器错误，未获取到响应数据";
      } else {
        if (response.status === 200 && response.data.code === 0) {
          return Promise.reject(response);
        }
        // 请求成功，但在业务上为失败
        message = response.data.message || response.data.errorData || "操作执行失败";
      }
      Toast(message);
      return Promise.reject(response);
    }
    return {
      data: response.data,
      success,
      message
    };
  },
  error => {
    let message = "";
    if (!navigator.onLine) {
      message = "网络连接异常，请检查网络";
      Toast(message);
      return Promise.reject(error);
    }
    if (!error.response) {
      message = "连接服务器失败";
      Toast(message);
      return Promise.reject(error);
    }
    let status = error.response.status;
    if (status === 401) {
      message = "您已在其他地方登录";
      store.dispatch("logout");
      Toast(message);
      return Promise.reject(error);
    }
    if (status < 200) {
      message = `未处理的消息响应，状态码：${status}`;
    } else if (status >= 300 && status < 400) {
      message = `未处理的重定向响应，状态码：${status}`;
    } else if (status === 406) {
      message = "已经参加过该考试";
      window.history.back();
    } else if (status >= 400 && status < 500) {
      message = `客户端错误，状态码：${status}`;
    } else if (status >= 500) {
      message = `服务器错误，状态码：${status}`;
    }
    Toast(message);
    // 系统请求失败
    return Promise.reject(error);
  }
);

export default _axios;