import Request from "@/lib/request/index.js";
import { refreshTokenFn } from "@/api/login.js";
import storage from "@/utils/storage.js";
import { md5 } from "@/utils/md5.js";
import Foundation from "@/utils/Foundation.js";
import api from "@/config/api.js";

import uuid from "@/utils/uuid.modified.js";

function cleanStorage() {
  uni.showToast({
    title: "你的登录状态已过期，请重新登录",
    icon: "none",
    duration: 1500,
  });
  if (uni.showLoading()) {
    uni.hideLoading();
  }

  storage.setHasLogin(false);
  storage.setAccessToken("");
  storage.setRefreshToken("");
  console.log("清空token");
  storage.setUuid("");
  storage.setUserInfo({});



  // 防抖处理跳转
  // #ifdef MP-WEIXIN

  uni.navigateTo({
    url: "/pages/passport/wechatMPLogin",
  });

  // #endif

  // #ifndef MP-WEIXIN

  uni.navigateTo({
    url: "/pages/passport/login",
  });

  //  #endif
}

let http = new Request();


http.setConfig((config) => {
  // 没有uuid创建
  if (!storage.getUuid()) {
    storage.setUuid(uuid.v1());
  }

  /* 设置全局配置 */
  config.baseURL = api.buyer;
  config.header = {
    ...config.header,
  };
  config.validateStatus = (statusCode) => {
    // 不论什么状态,统一在正确中处理
    return true;
  };
  return config;
});

http.interceptors.request.use(
  (config) => {
    /* 请求之前拦截器。可以使用async await 做异步操作 */
    let accessToken = storage.getAccessToken();
    if (accessToken) {
      const nonce = Foundation.randomString(6);
      const timestamp = parseInt(new Date().getTime() / 1000);
      const sign = md5(nonce + timestamp + accessToken);
      const _params = {
        nonce,
        timestamp,
        sign,
      };
      let params = config.params || {};
      params = { ...params, ..._params };

      config.params = params;
      config.header.accessToken = accessToken;

      
    }
    config.header = {
      ...config.header,
      uuid: storage.getUuid() || uuid.v1(),
    };
    return config;
  },
  (config) => {
    return Promise.reject(config);
  }
);


// 是否正在刷新的标记
let isRefreshing = false;
//重试队列
let requests = [];
// 必须使用异步函数，注意
http.interceptors.response.use(
  async (response) => {
    /* 请求之后拦截器。可以使用async await 做异步操作  */
    // token存在并且token过期
    if (isRefreshing && response.statusCode === 403) {
      cleanStorage();
      isRefreshing = false;
    }
    
    let token = storage.getAccessToken();
    if (
      (token && response.statusCode === 403) ||
      response.data.status === 403
    ) {
      if (!isRefreshing) {
        isRefreshing = true;
        //调用刷新token的接口
        return refreshTokenFn(storage.getRefreshToken())
          .then((res) => {
            let { accessToken, refreshToken } = res.data.result;
            storage.setAccessToken(accessToken);
            storage.setRefreshToken(refreshToken);

            response.header.accessToken = `${accessToken}`;
            // token 刷新后将数组的方法重新执行
            requests.forEach((cb) => cb(accessToken));
            requests = []; // 重新请求完清空
            return http.request(response.config);
          })
          .catch((err) => {
            cleanStorage();
            return Promise.reject(err);
          })
          .finally(() => {
            isRefreshing = false;
          });
      } else {
        // 返回未执行 resolve 的 Promise
        return new Promise((resolve) => {
          // 用函数形式将 resolve 存入，等待刷新后再执行
          requests.push((token) => {
            response.header.accessToken = `${token}`;
            resolve(http.request(response.config));
          });
        });
      }

      // 如果当前返回没登录
    } else if (
      (!token && response.statusCode === 403) ||
      response.data.code === 403
    ) {
      cleanStorage();

      // 如果当前状态码为正常但是success为不正常时
    } else if (
      (response.statusCode == 200 && !response.data.success) ||
      response.statusCode == 400
    ) {
      if (response.data.message) {
        uni.showToast({
          title: response.data.message,
          icon: "none",
          duration: 1500,
        });
      }
    }
    return response;
  },
  (error) => {
    return error;
  }
);

export { http };

export const Method = {
  GET: "GET",
  POST: "POST",
  PUT: "PUT",
  DELETE: "DELETE",
};