import { CheckinRecord, CheckinStatus, GroupMember, PersonalCheckinRecord } from '../../model/CheckinModels';
import { mockDelay } from './MockUtil';

/**
 * 打卡数据仓库契约。
 */
export abstract class CheckinRepository {
  abstract observeCheckin(): Promise<CheckinRecord>;
  abstract submitCheckin(status: string): Promise<CheckinRecord>;
}

/**
 * 本地 mock 实现：内存 seed，提交更新自身状态。
 */
export class FakeCheckinRepository extends CheckinRepository {
  private record: CheckinRecord = FakeCheckinRepository.seed();

  async observeCheckin(): Promise<CheckinRecord> {
    await mockDelay(250);
    return this.record;
  }

  async submitCheckin(status: string): Promise<CheckinRecord> {
    await mockDelay(300);
    this.record.checked = true;
    this.record.status = status;
    // 更新"我"（第一个成员）在小组成员列表里的状态
    if (this.record.groupMembers.length > 0) {
      const me = this.record.groupMembers[0];
      me.checkedIn = true;
      me.status = status;
      me.checkinTime = '今天 09:12';
    }
    return this.record;
  }

  private static seed(): CheckinRecord {
    const r = new CheckinRecord();
    r.classDate = '2026-09-06';
    r.weekday = '周日';
    r.dayNum = '06';
    r.checked = false;
    r.status = '';
    r.groupName = '进阶一组';
    r.groupMembers = [
      FakeCheckinRepository.member('u-1001', '张三', false, '', ''),
      FakeCheckinRepository.member('u-1002', '李四', true, CheckinStatus.NORMAL, '今天 09:05'),
      FakeCheckinRepository.member('u-1003', '王五', true, CheckinStatus.LATE, '今天 09:18'),
      FakeCheckinRepository.member('u-1004', '赵六', false, '', ''),
      FakeCheckinRepository.member('u-1005', '孙七', true, CheckinStatus.LEAVE, '今天 08:40')
    ];
    r.personalHistory = [
      FakeCheckinRepository.history('h-1', '2026-08-30', CheckinStatus.NORMAL, '08:52'),
      FakeCheckinRepository.history('h-2', '2026-08-23', CheckinStatus.LATE, '09:21'),
      FakeCheckinRepository.history('h-3', '2026-08-16', CheckinStatus.ABSENT, '--')
    ];
    return r;
  }

  private static member(id: string, name: string, checkedIn: boolean, status: string, checkinTime: string): GroupMember {
    const m = new GroupMember();
    m.id = id;
    m.name = name;
    m.checkedIn = checkedIn;
    m.status = status;
    m.checkinTime = checkinTime;
    return m;
  }

  private static history(id: string, date: string, status: string, time: string): PersonalCheckinRecord {
    const h = new PersonalCheckinRecord();
    h.id = id;
    h.date = date;
    h.status = status;
    h.time = time;
    return h;
  }
}