import { makeAutoObservable, runInAction } from "mobx";
import { fetchJSON, postForm } from '@/utils/request';
import { HT_HOST } from "@/config";
import { isNotEmpty, prepareUrl } from '@/utils/commons';

const KEY_LOGIN_TOKEN = 'KEY_LOGIN_TOKEN';
const KEY_TRAVEL_AGENCY_ID = 'KEY_TRAVEL_AGENCY_ID';
const KEY_USER_ID = 'KEY_USER_ID';

class Auth {

  constructor(root) {
    makeAutoObservable(this, { rootStore: false });
    this.root = root;
    this.login.token = root.getSession(KEY_LOGIN_TOKEN);
    this.login.userId = root.getSession(KEY_USER_ID);
    this.login.travelAgencyId = root.getSession(KEY_TRAVEL_AGENCY_ID);
    if (isNotEmpty(this.login.token)) {
      this.fetchUserDetail();
    }
  }

  valdateUserPassword(usr, pwd) {
    const formData = new FormData();
    formData.append('username', usr);
    formData.append('Password', pwd);
    const postUrl = HT_HOST + '/service-CooperateSOA/Login';

    return postForm(postUrl, formData)
      .then(json => {
        if (json.errcode == 0) {
          this.login.token = json.Result.token;
          this.login.timeout = false;
          this.root.putSession(KEY_LOGIN_TOKEN, json.Result.token);
          return json.Result.WU_LMI_SN;
        } else {
          throw new Error(json.errmsg + ': ' + json.errcode);
        }
      });
  }

  fetchUserDetail() {
    const fetchUrl = prepareUrl(HT_HOST + '/service-CooperateSOA/GetLinkManInfo')
      .append('token', this.login.token)
      .build();

    return fetchJSON(fetchUrl)
      .then(json => {
        if (json.errcode == 0) {
          runInAction(() => {
            this.login.userId = json.Result.LMI_SN;
            this.login.username = json.Result.LoginName;
            this.login.travelAgencyId = json.Result.LMI_VEI_SN;
            this.login.travelAgencyName = json.Result.VName;
            this.login.telephone = json.Result.LkPhone;
            this.login.emailAddress = json.Result.LMI_listmail;
            this.login.cityId = json.Result.citysn;
            this.root.putSession(KEY_TRAVEL_AGENCY_ID, this.login.travelAgencyId);
            this.root.putSession(KEY_USER_ID, this.login.userId);
          });
          this.startTokenInterval(this.login.token);
          return this.login;
        } else {
          throw new Error(json.errmsg + ': ' + json.errcode);
        }
      });
  }

  startTokenInterval(loginToken) {
    const authStore = this;
    async function fetchLastRequet() {
      const fetchUrl = prepareUrl(HT_HOST + '/service-CooperateSOA/GetLastReqDate')
        .append('token', loginToken)
        .build();
      const json = await fetchJSON(fetchUrl)
      if (json.errcode == 0 && isNotEmpty(json.result)) {
        return json.result.LastReqDate;
      } else {
        return 0;
      }
    }

    setInterval(async () => {
      const lastRequest = await fetchLastRequet();
      console.info(lastRequest);
      const lastReqDate = new Date(lastRequest);
      const now = new Date();
      const diffTime = now.getTime() - lastReqDate.getTime();
      const diffMinute = diffTime/1000/60;
      console.info(now);
      console.info(lastReqDate);
      console.info('diffTime: ' + diffTime);
      console.info('diffMinute: ' + diffMinute);
      if (diffMinute > 3) {
        console.info('timeout...');
        runInAction(() => {
          authStore.login.timeout = true;
        });
      }
    }, 1000*60*1);
  }

  changeUserPassword(password, newPassword) {
    const formData = new FormData();
    formData.append('UserID', this.login.userId);
    formData.append('Password', password);
    formData.append('NewPassword', newPassword);
    formData.append('token', this.login.token);
    const postUrl = HT_HOST + '/service-CooperateSOA/SetPassword';

    return postForm(postUrl, formData)
      .then(json => {
        if (json.errcode == 0) {
          return json;
        } else {
          throw new Error(json.errmsg + ': ' + json.errcode);
        }
      });
  }

  login = {
    token: '',
    userId: 0, // LMI_SN
    username: '0',
    travelAgencyId: 0,  // VEI_SN
    travelAgencyName: '',
    telephone: '',
    emailAddress: '',
    cityId: 0,
    timeout: false
  }
}

export default Auth;