import { getStorage, setStorage, removeStorage } from "../storage";

/** SDK 登录用户信息接口 */
export interface UserInfoInterface {
  token: string;
  user_name: string;
  reg_time: string;
  uid: number;
  openid: string;
  game_id: number;
  pop_content?: string;
  pop_title?: string;
  is_first_login?: boolean;
  is_reactive_user?: boolean;
  share_ext?:string;
}

const STORAGE_KEY = "userInfo";

const DEFAULT_INFO: UserInfoInterface = {
  token: "",
  user_name: "",
  reg_time: "",
  uid: 0,
  openid: "",
  game_id: 0,
};

/**
 * SDK 登录用户信息模型
 * 单例模式，自动从缓存加载/保存
 */
class UserInfoModel {
  private static instance: UserInfoModel | null = null;
  private data: UserInfoInterface;

  private constructor() {
    // 从缓存加载数据
    this.data = getStorage<UserInfoInterface>(STORAGE_KEY, DEFAULT_INFO) ?? DEFAULT_INFO;
  }

  static getInstance(): UserInfoModel {
    if (!UserInfoModel.instance) {
      UserInfoModel.instance = new UserInfoModel();
    }
    return UserInfoModel.instance;
  }

  /** 获取用户信息 */
  get(): UserInfoInterface {
    let launchOptions = wx.getLaunchOptionsSync();
    let query = launchOptions.query;
    const share_ext = query.share_ext;
    this.data.share_ext = share_ext ? share_ext : "";
    return this.data;
  }

  /** 保存用户信息到缓存 */
  save(info: UserInfoInterface): boolean {
    this.data = info;
    return setStorage(STORAGE_KEY, info);
  }

  /** 更新部分用户信息 */
  update(partial: Partial<UserInfoInterface>): boolean {
    this.data = { ...this.data, ...partial };
    return setStorage(STORAGE_KEY, this.data);
  }

  /** 清除用户信息 */
  clear(): boolean {
    this.data = { ...DEFAULT_INFO };
    return removeStorage(STORAGE_KEY);
  }

  /** 是否已登录 */
  isLoggedIn(): boolean {
    return !!this.data.token && this.data.uid > 0;
  }

  /** 获取 token */
  getToken(): string {
    return this.data.token;
  }

  /** 获取 uid */
  getUid(): number {
    return this.data.uid;
  }
}

export default UserInfoModel;