import { HomeData, HomeModule, IntroCard } from '../../model/HomeModels';
import { mockDelay } from './MockUtil';

/**
 * 首页数据仓库契约。
 */
export abstract class HomeRepository {
  abstract observeHome(): Promise<HomeData>;
  abstract observeGuestHome(): Promise<HomeData>;
}

/**
 * 本地 mock 实现：登录态与游客态两套 seed。
 */
export class FakeHomeRepository extends HomeRepository {
  async observeHome(): Promise<HomeData> {
    await mockDelay(250);
    return FakeHomeRepository.seed(true);
  }

  async observeGuestHome(): Promise<HomeData> {
    await mockDelay(250);
    return FakeHomeRepository.seed(false);
  }

  private static seed(loggedIn: boolean): HomeData {
    const data = new HomeData();
    if (loggedIn) {
      data.greeting = '晚上好';
      data.displayName = '张三';
      data.encouragement = '每日精进，持续成长';
    } else {
      data.greeting = '欢迎来到明缘云道场';
      data.displayName = '游客';
      data.encouragement = '登录后即可打卡、提交计划';
    }
    data.modules = FakeHomeRepository.buildModules();
    data.intros = FakeHomeRepository.buildIntros();
    return data;
  }

  private static buildModules(): HomeModule[] {
    const checkin = new HomeModule();
    checkin.id = 'checkin';
    checkin.emoji = '📋';
    checkin.title = '打卡介绍';
    checkin.description = '每日打卡记录';

    const plan = new HomeModule();
    plan.id = 'plan';
    plan.emoji = '📝';
    plan.title = '计划介绍';
    plan.description = '周/月/年计划';

    const about = new HomeModule();
    about.id = 'about';
    about.emoji = 'ℹ️';
    about.title = '关于我们';
    about.description = '了解明缘云道场';

    return [checkin, plan, about];
  }

  private static buildIntros(): IntroCard[] {
    const list: IntroCard[] = [];

    const learn = new IntroCard();
    learn.emoji = '📚';
    learn.heading = '学习成长工具';
    learn.body = '明缘云道场是一款专注于个人成长的效率工具，通过每周打卡与计划管理，帮助你养成良好的学习习惯。';
    list.push(learn);

    const checkin = new IntroCard();
    checkin.emoji = '✅';
    checkin.heading = '周打卡';
    checkin.body = '每周打卡，支持多种状态记录。查看小组打卡情况，与同学们互相监督、共同进步。';
    list.push(checkin);

    const plan = new IntroCard();
    plan.emoji = '📝';
    plan.heading = '计划管理';
    plan.body = '提供周计划、月计划、年计划三级管理，支持文字与图片上传，让成长有迹可循。';
    list.push(plan);

    const group = new IntroCard();
    group.emoji = '👥';
    group.heading = '小组共学';
    group.body = '加入学习小组，查看组员的打卡与计划完成情况，与志同道合的伙伴一起成长。';
    list.push(group);

    return list;
  }
}