import 'reflect-metadata';
import { validate } from 'class-validator';
import { CreateScheduleDto, UpdateScheduleDto } from './schedule.dto';

const createSchedule = (notes: string) =>
  Object.assign(new CreateScheduleDto(), {
    classId: 1,
    classroomId: 2,
    weekDay: 1,
    startTime: '09:00',
    endTime: '10:00',
    startDate: '2026-07-01',
    endDate: '2026-07-31',
    subject: '语文',
    notes,
  });

describe('schedule attendance window validation', () => {
  it('accepts a configurable number of minutes before class', async () => {
    const dto = createSchedule('');
    dto.attendanceAdvanceMinutes = 45;
    const errors = await validate(dto);
    expect(errors.some((error) => error.property === 'attendanceAdvanceMinutes')).toBe(false);
  });

  it('rejects values outside 0 to 1440 minutes', async () => {
    const dto = Object.assign(new UpdateScheduleDto(), { attendanceAdvanceMinutes: 1441 });
    const errors = await validate(dto);
    expect(errors.some((error) => error.property === 'attendanceAdvanceMinutes')).toBe(true);
  });
});

describe('schedule notes validation', () => {
  it('rejects notes longer than 500 characters when creating', async () => {
    const errors = await validate(createSchedule('a'.repeat(501)));
    expect(errors.some((error) => error.property === 'notes')).toBe(true);
  });

  it('rejects notes longer than 500 characters when updating', async () => {
    const dto = Object.assign(new UpdateScheduleDto(), { notes: 'a'.repeat(501) });
    const errors = await validate(dto);
    expect(errors.some((error) => error.property === 'notes')).toBe(true);
  });
});

it('removes the retired departmentId field from create requests', async () => {
  const dto = Object.assign(new CreateScheduleDto(), {
    classId: 1,
    classroomId: 2,
    weekDay: 1,
    startTime: '09:00',
    endTime: '10:00',
    startDate: '2026-07-01',
    endDate: '2026-07-31',
    subject: '语文',
    departmentId: 99,
  });

  await validate(dto, { whitelist: true });

  expect(dto).not.toHaveProperty('departmentId');
});