import { ref, computed } from 'vue'
import { defineStore } from 'pinia'

export const useAuthStore = defineStore('auth', () => {
  const token = ref(localStorage.getItem('user_token') || '');
  const userInfo = ref(null);

  //判断是否已登录
  const isLoggedIn = computed(() => !!token.value);

  /**
   * 登录成功保存状态
   * @param {String} newToken  用户凭证 
   * @param {*} user      用户信息
   */
  function setLoginInfo(newToken, user) {
    token.value = newToken;
    userInfo.value = user;
    localStorage.setItem('user_token', newToken);
  }

  /**
   * 退出登录
   */
  function logout() {
    token.value = '';
    userInfo.value = null;
    localStorage.removeItem('user_token');
  }

  return { token, userInfo, isLoggedIn, setLoginInfo, logout };
})