import { getStorage, setStorage, removeStorage } from '@/utils/storage';
import { loginApi, registerApi, logoutApi, forgotPasswordApi, changePasswordApi, sendCodeApi } from '@/api/modules/user';
import type { LoginParams, RegisterParams, ForgotPasswordParams, ChangePasswordParams, SendCodeParams } from '@/api/types/user';
import type { UserInfo, MenuItem, PermissionItem } from '@/stores/types/user';
import { formatMenuToElMenu, type ElMenuItem } from '@/utils/menuFormat';

// 定义用户 Store
export const useUserStore = defineStore('user', () => {
  const router = useRouter();

  // ========== 状态定义（与后端返回数据对应） ==========
  // 用户/菜单和权限状态
  const userInfo = ref<UserInfo | null>(getStorage('userInfo') || null);
  const token = ref<string>(getStorage('token') || '');
  const menusInfo = ref<MenuItem[]>(getStorage('menusInfo') || []);
  const permissionsInfo = ref<PermissionItem[]>(getStorage('permissionsInfo') || []);

  // ========== 计算属性 ==========
  const isLoggedIn = computed(() => !!token.value);
  // const permissionKeys = computed(() => permissions.value.map(item => item.name));
  // 格式化后的 el-menu 数据（自动更新）
  const sideMenu = computed<ElMenuItem[]>(() => formatMenuToElMenu(menusInfo.value));
/**
 * 设置用户信息
 * 作用：根据后端返回数据设置用户状态 + 本地存储
 */
const setUserInfo = (set: any) => {
  token.value = set.user.token;
  userInfo.value = set.user;
  menusInfo.value = set.menus_info;
  permissionsInfo.value = set.permissions_info;

  // 保存到本地存储
  setStorage('token', set.user.token);
  setStorage('userInfo', set.user);
  setStorage('menusInfo', set.menus_info);
  setStorage('permissionsInfo', set.permissions_info);

  console.log('用户信息保存成功');
};

/**
 * 清空用户信息（核心复用方法）
 * 作用：重置所有用户相关状态 + 清除本地存储
 */
const clearUserInfo = () => {
  // 重置 Pinia 中的状态
  token.value = '';
  userInfo.value = null;
  menusInfo.value = [];
  permissionsInfo.value = [];

  // 清除本地存储的用户数据
  removeStorage('token');
  removeStorage('userInfo');
  removeStorage('menusInfo');
  removeStorage('permissionsInfo');

  console.log('用户信息已清空');
};

/**
 * 登录方法
 * @param params 登录参数
 */
const login = async (params: LoginParams) => {
  try {
    const res = await loginApi(params);
    if (res.isUserNotExist) {
      // 用户不存在，跳转到注册页面
      router.push('/user/register');
      return;
    }
    setUserInfo(res);
    // 跳转到首页
    router.push('/');
  } catch (error) {
    console.error('登录失败', error);

    throw error;

  }
};

/**
   * 注册方法
   * @param params 登录参数
   */
const register = async (params: RegisterParams) => {
  try {
    const res = await registerApi(params);
    //跳转登录页面
    router.push('/user/login');
  } catch (error) {
    console.error('注册失败', error);
    throw error;
  }
};

/**
 * 退出登录
 */
const logout = async () => {
  try {
    await logoutApi();
  } catch (error) {
    console.error('退出登录接口调用失败', error);
  } finally {
    clearUserInfo();

    // 跳转到登录页面
    router.push('/user/login');
  }
};

/**
 * 忘记密码
 */
const forgotPassword = async (params: ForgotPasswordParams) => {
  try {
    await forgotPasswordApi(params);
    // 跳转登录页面
    router.push('/user/login');
  } catch (error) {
    console.error('重置密码失败', error);
    throw error;
  }
};

/**
 * 修改密码
 */
const changePassword = async (params: ChangePasswordParams) => {
  try {
    await changePasswordApi(params);
    // 跳转登录页面
    clearUserInfo();
    router.push('/user/login');
  } catch (error) {
    console.error('修改密码失败', error);
    throw error;
  }
};

/**
 * 发送验证码
 */
const sendCode = async (params: SendCodeParams) => {
  try {
    const res = await sendCodeApi(params);
  } catch (error) {
    console.error('发送验证码失败', error);
    throw error;
  }
};
/**
 * 切换账户
 */
const switchAccount = async () => {
  clearUserInfo();
  router.push('/user/login');
};
return {
  // 状态
  token,
  userInfo,
  menusInfo,
  permissionsInfo,
  // 计算属性
  isLoggedIn,
  sideMenu,
  // 方法（箭头函数）
  login,
  register,
  logout,
  forgotPassword,
  changePassword,
  sendCode,
  switchAccount
};
});