import { beforeEach, describe, expect, it } from 'vitest';
import { LeaguesTestContext } from '../LeaguesTestContext';
import { League as RacingLeague } from '../../../../core/racing/domain/entities/League';
import { Season } from '../../../../core/racing/domain/entities/season/Season';
import { LeagueMembership } from '../../../../core/racing/domain/entities/LeagueMembership';

// Note: the current racing module does not expose explicit "open/close registration" use-cases.
// Registration is modeled via membership + registrations repository interactions.

describe('League Schedule - Race Registration', () => {
  let context: LeaguesTestContext;

  beforeEach(() => {
    context = new LeaguesTestContext();
    context.clear();
  });

  const seedRacingLeague = async (params: { leagueId: string }) => {
    const league = RacingLeague.create({
      id: params.leagueId,
      name: 'Racing League',
      description: 'League used for registration integration tests',
      ownerId: 'driver-123',
    });

    await context.racingLeagueRepository.create(league);
    return league;
  };

  const seedSeason = async (params: {
    seasonId: string;
    leagueId: string;
    startDate?: Date;
    endDate?: Date;
  }) => {
    const season = Season.create({
      id: params.seasonId,
      leagueId: params.leagueId,
      gameId: 'iracing',
      name: 'Season 1',
      status: 'active',
      startDate: params.startDate ?? new Date('2025-01-01T00:00:00Z'),
      endDate: params.endDate ?? new Date('2025-01-31T23:59:59Z'),
    });

    await context.seasonRepository.add(season);
    return season;
  };

  const seedActiveMembership = async (params: { leagueId: string; driverId: string }) => {
    const membership = LeagueMembership.create({
      leagueId: params.leagueId,
      driverId: params.driverId,
      role: 'member',
      status: 'active',
    });

    await context.leagueMembershipRepository.saveMembership(membership);
    return membership;
  };

  it('registers an active league member for a race', async () => {
    const leagueId = 'league-1';
    const seasonId = 'season-1';
    const driverId = 'driver-1';

    await seedRacingLeague({ leagueId });
    await seedSeason({ leagueId, seasonId });
    await seedActiveMembership({ leagueId, driverId });

    const createRace = await context.createLeagueSeasonScheduleRaceUseCase.execute({
      leagueId,
      seasonId,
      track: 'Monza',
      car: 'GT3',
      scheduledAt: new Date('2025-01-10T20:00:00Z'),
    });
    expect(createRace.isOk()).toBe(true);
    const { raceId } = createRace.unwrap();

    const register = await context.registerForRaceUseCase.execute({
      leagueId,
      raceId,
      driverId,
    });

    expect(register.isOk()).toBe(true);
    expect(register.unwrap()).toEqual({ raceId, driverId, status: 'registered' });

    const isRegistered = await context.raceRegistrationRepository.isRegistered(raceId, driverId);
    expect(isRegistered).toBe(true);
  });

  it('rejects registration when driver is not an active member', async () => {
    const leagueId = 'league-1';
    const seasonId = 'season-1';

    await seedRacingLeague({ leagueId });
    await seedSeason({ leagueId, seasonId });

    const createRace = await context.createLeagueSeasonScheduleRaceUseCase.execute({
      leagueId,
      seasonId,
      track: 'Monza',
      car: 'GT3',
      scheduledAt: new Date('2025-01-10T20:00:00Z'),
    });
    expect(createRace.isOk()).toBe(true);

    const { raceId } = createRace.unwrap();
    const result = await context.registerForRaceUseCase.execute({ leagueId, raceId, driverId: 'driver-missing' });

    expect(result.isErr()).toBe(true);
    expect(result.unwrapErr().code).toBe('NOT_ACTIVE_MEMBER');
  });

  it('rejects duplicate registration', async () => {
    const leagueId = 'league-1';
    const seasonId = 'season-1';
    const driverId = 'driver-1';

    await seedRacingLeague({ leagueId });
    await seedSeason({ leagueId, seasonId });
    await seedActiveMembership({ leagueId, driverId });

    const createRace = await context.createLeagueSeasonScheduleRaceUseCase.execute({
      leagueId,
      seasonId,
      track: 'Monza',
      car: 'GT3',
      scheduledAt: new Date('2025-01-10T20:00:00Z'),
    });
    expect(createRace.isOk()).toBe(true);
    const { raceId } = createRace.unwrap();

    const first = await context.registerForRaceUseCase.execute({ leagueId, raceId, driverId });
    expect(first.isOk()).toBe(true);

    const second = await context.registerForRaceUseCase.execute({ leagueId, raceId, driverId });
    expect(second.isErr()).toBe(true);
    expect(second.unwrapErr().code).toBe('ALREADY_REGISTERED');
  });

  it('withdraws an existing registration for an upcoming race', async () => {
    const leagueId = 'league-1';
    const seasonId = 'season-1';
    const driverId = 'driver-1';

    await seedRacingLeague({ leagueId });
    await seedSeason({
      leagueId,
      seasonId,
      startDate: new Date('2000-01-01T00:00:00Z'),
      endDate: new Date('2100-12-31T23:59:59Z'),
    });
    await seedActiveMembership({ leagueId, driverId });

    const createRace = await context.createLeagueSeasonScheduleRaceUseCase.execute({
      leagueId,
      seasonId,
      track: 'Monza',
      car: 'GT3',
      scheduledAt: new Date(Date.now() + 7 * 24 * 60 * 60 * 1000),
    });
    expect(createRace.isOk()).toBe(true);
    const { raceId } = createRace.unwrap();

    const register = await context.registerForRaceUseCase.execute({ leagueId, raceId, driverId });
    expect(register.isOk()).toBe(true);

    const withdraw = await context.withdrawFromRaceUseCase.execute({ raceId, driverId });
    expect(withdraw.isOk()).toBe(true);
    expect(withdraw.unwrap()).toEqual({ raceId, driverId, status: 'withdrawn' });

    const isRegistered = await context.raceRegistrationRepository.isRegistered(raceId, driverId);
    expect(isRegistered).toBe(false);
  });
});