import { describe, it, expect, beforeEach, vi, Mock } from 'vitest';
import { GetRaceRegistrationsUseCase } from './GetRaceRegistrationsUseCase';
import type { IRaceRegistrationRepository } from '@core/racing/domain/repositories/IRaceRegistrationRepository';
import { RaceRegistration } from '@core/racing/domain/entities/RaceRegistration';

describe('GetRaceRegistrationsUseCase', () => {
  let useCase: GetRaceRegistrationsUseCase;
  let registrationRepository: { findByRaceId: Mock };

  beforeEach(() => {
    registrationRepository = { findByRaceId: vi.fn() };
    useCase = new GetRaceRegistrationsUseCase(
      registrationRepository as unknown as IRaceRegistrationRepository,
    );
  });

  it('should return registrations', async () => {
    const raceId = 'race-1';
    const registrations = [
      RaceRegistration.create({ raceId, driverId: 'driver-1' }),
      RaceRegistration.create({ raceId, driverId: 'driver-2' }),
    ];

    registrationRepository.findByRaceId.mockResolvedValue(registrations);

    const result = await useCase.execute({ raceId });

    expect(result.isOk()).toBe(true);
    const outputPort = result.unwrap();
    expect(outputPort.registrations).toEqual(registrations);
  });

  it('should return empty array when no registrations', async () => {
    registrationRepository.findByRaceId.mockResolvedValue([]);

    const result = await useCase.execute({ raceId: 'race-1' });

    expect(result.isOk()).toBe(true);
    const outputPort = result.unwrap();
    expect(outputPort.registrations).toEqual([]);
  });
});