/**
 * Dependency Injection Container
 *
 * Initializes all in-memory repositories and provides accessor functions.
 * Allows easy swapping to persistent repositories later.
 */

import { Driver } from '@gridpilot/racing/domain/entities/Driver';
import { League } from '@gridpilot/racing/domain/entities/League';
import { Race } from '@gridpilot/racing/domain/entities/Race';
import { Result } from '@gridpilot/racing/domain/entities/Result';
import { Standing } from '@gridpilot/racing/domain/entities/Standing';
import { Game } from '@gridpilot/racing/domain/entities/Game';
import { Season } from '@gridpilot/racing/domain/entities/Season';
import { Track } from '@gridpilot/racing/domain/entities/Track';
import { Car } from '@gridpilot/racing/domain/entities/Car';

import type { IDriverRepository } from '@gridpilot/racing/domain/repositories/IDriverRepository';
import type { ILeagueRepository } from '@gridpilot/racing/domain/repositories/ILeagueRepository';
import type { IRaceRepository } from '@gridpilot/racing/domain/repositories/IRaceRepository';
import type { IResultRepository } from '@gridpilot/racing/domain/repositories/IResultRepository';
import type { IStandingRepository } from '@gridpilot/racing/domain/repositories/IStandingRepository';
import type { IPenaltyRepository } from '@gridpilot/racing/domain/repositories/IPenaltyRepository';
import type { IGameRepository } from '@gridpilot/racing/domain/repositories/IGameRepository';
import type { ISeasonRepository } from '@gridpilot/racing/domain/repositories/ISeasonRepository';
import type { ILeagueScoringConfigRepository } from '@gridpilot/racing/domain/repositories/ILeagueScoringConfigRepository';
import type { ITrackRepository } from '@gridpilot/racing/domain/repositories/ITrackRepository';
import type { ICarRepository } from '@gridpilot/racing/domain/repositories/ICarRepository';
import type {
  ITeamRepository,
  ITeamMembershipRepository,
  IRaceRegistrationRepository,
} from '@gridpilot/racing';
import type { ILeagueMembershipRepository } from '@gridpilot/racing/domain/repositories/ILeagueMembershipRepository';
import type { LeagueMembership, JoinRequest } from '@gridpilot/racing/domain/entities/LeagueMembership';
import type { IFeedRepository } from '@gridpilot/social/domain/repositories/IFeedRepository';
import type { ISocialGraphRepository } from '@gridpilot/social/domain/repositories/ISocialGraphRepository';
import type { ImageServicePort } from '@gridpilot/media';

import { InMemoryDriverRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryDriverRepository';
import { InMemoryLeagueRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryLeagueRepository';
import { InMemoryRaceRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryRaceRepository';
import { InMemoryResultRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryResultRepository';
import { InMemoryStandingRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryStandingRepository';
import { InMemoryPenaltyRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryPenaltyRepository';
import { InMemoryTrackRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryTrackRepository';
import { InMemoryCarRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryCarRepository';
import {
  InMemoryGameRepository,
  InMemorySeasonRepository,
  InMemoryLeagueScoringConfigRepository,
  getLeagueScoringPresetById,
} from '@gridpilot/racing/infrastructure/repositories/InMemoryScoringRepositories';
import { InMemoryLeagueScoringPresetProvider } from '@gridpilot/racing/infrastructure/repositories/InMemoryLeagueScoringPresetProvider';
import { InMemoryTeamRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryTeamRepository';
import { InMemoryTeamMembershipRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryTeamMembershipRepository';
import { InMemoryRaceRegistrationRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryRaceRegistrationRepository';
import { InMemoryLeagueMembershipRepository } from '@gridpilot/racing/infrastructure/repositories/InMemoryLeagueMembershipRepository';
import {
  JoinLeagueUseCase,
  RegisterForRaceUseCase,
  WithdrawFromRaceUseCase,
  IsDriverRegisteredForRaceQuery,
  GetRaceRegistrationsQuery,
  CreateTeamUseCase,
  JoinTeamUseCase,
  LeaveTeamUseCase,
  ApproveTeamJoinRequestUseCase,
  RejectTeamJoinRequestUseCase,
  UpdateTeamUseCase,
  GetAllTeamsQuery,
  GetTeamDetailsQuery,
  GetTeamMembersQuery,
  GetTeamJoinRequestsQuery,
  GetDriverTeamQuery,
  GetLeagueStandingsQuery,
  GetLeagueDriverSeasonStatsQuery,
  GetAllLeaguesWithCapacityQuery,
  GetAllLeaguesWithCapacityAndScoringQuery,
  ListLeagueScoringPresetsQuery,
  GetLeagueScoringConfigQuery,
  CreateLeagueWithSeasonAndScoringUseCase,
  GetLeagueFullConfigQuery,
  GetRaceWithSOFQuery,
  GetLeagueStatsQuery,
} from '@gridpilot/racing/application';
import type { DriverRatingProvider } from '@gridpilot/racing/application';
import {
 createStaticRacingSeed,
 type RacingSeedData,
 getDemoLeagueArchetypeByName,
} from '@gridpilot/testing-support';
import type {
 LeagueScheduleDTO,
 LeagueSchedulePreviewDTO,
} from '@gridpilot/racing/application';
import { PreviewLeagueScheduleQuery } from '@gridpilot/racing/application';
import {
  InMemoryFeedRepository,
  InMemorySocialGraphRepository,
} from '@gridpilot/social/infrastructure/inmemory/InMemorySocialAndFeed';
import { DemoImageServiceAdapter } from '@gridpilot/demo-infrastructure';
import type { LeagueScoringPresetProvider } from '@gridpilot/racing/application/ports/LeagueScoringPresetProvider';

/**
 * Seed data for development
 */
/**
 * Driver statistics and ranking data
 */
export interface DriverStats {
  driverId: string;
  rating: number;
  totalRaces: number;
  wins: number;
  podiums: number;
  dnfs: number;
  avgFinish: number;
  bestFinish: number;
  worstFinish: number;
  consistency: number;
  overallRank: number;
  percentile: number;
}

/**
 * Mock driver stats with calculated rankings
 */
const driverStats: Record<string, DriverStats> = {};

function createSeedData(): RacingSeedData {
  const seed = createStaticRacingSeed(42);
  const { drivers } = seed;

  drivers.forEach((driver, index) => {
    const totalRaces = 40 + index * 5;
    const wins = Math.max(0, Math.floor(totalRaces * 0.2) - index);
    const podiums = Math.max(wins * 2, 0);
    const dnfs = Math.max(0, Math.floor(index / 2));
    const rating = 1500 + index * 25;

    driverStats[driver.id] = {
      driverId: driver.id,
      rating,
      totalRaces,
      wins,
      podiums,
      dnfs,
      avgFinish: 4,
      bestFinish: 1,
      worstFinish: 20,
      consistency: 80,
      overallRank: index + 1,
      percentile: Math.max(0, 100 - index),
    };
  });

  return seed;
}

/**
 * DI Container class
 */
class DIContainer {
  private static instance: DIContainer;
  
  private _driverRepository: IDriverRepository;
  private _leagueRepository: ILeagueRepository;
  private _raceRepository: IRaceRepository;
  private _resultRepository: IResultRepository;
  private _standingRepository: IStandingRepository;
  private _penaltyRepository: IPenaltyRepository;
  private _teamRepository: ITeamRepository;
  private _teamMembershipRepository: ITeamMembershipRepository;
  private _raceRegistrationRepository: IRaceRegistrationRepository;
  private _leagueMembershipRepository: ILeagueMembershipRepository;
  private _gameRepository: IGameRepository;
  private _seasonRepository: ISeasonRepository;
  private _leagueScoringConfigRepository: ILeagueScoringConfigRepository;
  private _leagueScoringPresetProvider: LeagueScoringPresetProvider;
  private _feedRepository: IFeedRepository;
  private _socialRepository: ISocialGraphRepository;
  private _imageService: ImageServicePort;
  private _trackRepository: ITrackRepository;
  private _carRepository: ICarRepository;

  // Racing application use-cases / queries
  private _joinLeagueUseCase: JoinLeagueUseCase;
  private _registerForRaceUseCase: RegisterForRaceUseCase;
  private _withdrawFromRaceUseCase: WithdrawFromRaceUseCase;
  private _isDriverRegisteredForRaceQuery: IsDriverRegisteredForRaceQuery;
  private _getRaceRegistrationsQuery: GetRaceRegistrationsQuery;
  private _getLeagueStandingsQuery: GetLeagueStandingsQuery;
  private _getLeagueDriverSeasonStatsQuery: GetLeagueDriverSeasonStatsQuery;
  private _getAllLeaguesWithCapacityQuery: GetAllLeaguesWithCapacityQuery;
  private _getAllLeaguesWithCapacityAndScoringQuery: GetAllLeaguesWithCapacityAndScoringQuery;
  private _listLeagueScoringPresetsQuery: ListLeagueScoringPresetsQuery;
  private _getLeagueScoringConfigQuery: GetLeagueScoringConfigQuery;
  private _createLeagueWithSeasonAndScoringUseCase: CreateLeagueWithSeasonAndScoringUseCase;
  private _getLeagueFullConfigQuery: GetLeagueFullConfigQuery;
  // Placeholder for future schedule preview wiring
  private _previewLeagueScheduleQuery: PreviewLeagueScheduleQuery;
  private _getRaceWithSOFQuery: GetRaceWithSOFQuery;
  private _getLeagueStatsQuery: GetLeagueStatsQuery;
  private _driverRatingProvider: DriverRatingProvider;

  private _createTeamUseCase: CreateTeamUseCase;
  private _joinTeamUseCase: JoinTeamUseCase;
  private _leaveTeamUseCase: LeaveTeamUseCase;
  private _approveTeamJoinRequestUseCase: ApproveTeamJoinRequestUseCase;
  private _rejectTeamJoinRequestUseCase: RejectTeamJoinRequestUseCase;
  private _updateTeamUseCase: UpdateTeamUseCase;
  private _getAllTeamsQuery: GetAllTeamsQuery;
  private _getTeamDetailsQuery: GetTeamDetailsQuery;
  private _getTeamMembersQuery: GetTeamMembersQuery;
  private _getTeamJoinRequestsQuery: GetTeamJoinRequestsQuery;
  private _getDriverTeamQuery: GetDriverTeamQuery;

  private constructor() {
    // Create seed data
    const seedData = createSeedData();
    const primaryDriverId = seedData.drivers[0]?.id ?? 'driver-1';

    // Initialize repositories with seed data
    this._driverRepository = new InMemoryDriverRepository(seedData.drivers);
    this._leagueRepository = new InMemoryLeagueRepository(seedData.leagues);
    this._raceRepository = new InMemoryRaceRepository(seedData.races);
    
    // Result repository needs race repository for league-based queries
    this._resultRepository = new InMemoryResultRepository(
      seedData.results,
      this._raceRepository
    );
    
    // Standing repository needs all three for recalculation
    this._standingRepository = new InMemoryStandingRepository(
      seedData.standings,
      this._resultRepository,
      this._raceRepository,
      this._leagueRepository
    );

    // Race registrations - seed from results for completed races, plus some upcoming races
    const seedRaceRegistrations: Array<{ raceId: string; driverId: string; registeredAt: Date }> = [];
    
    // For completed races, extract driver registrations from results
    for (const result of seedData.results) {
      seedRaceRegistrations.push({
        raceId: result.raceId,
        driverId: result.driverId,
        registeredAt: new Date(Date.now() - 7 * 24 * 60 * 60 * 1000), // 7 days ago
      });
    }
    
    // For some upcoming races, add random registrations
    const upcomingRaces = seedData.races.filter(r => r.status === 'scheduled').slice(0, 10);
    for (const race of upcomingRaces) {
      const participantCount = Math.floor(Math.random() * 12) + 8; // 8-20 participants
      const shuffledDrivers = [...seedData.drivers].sort(() => Math.random() - 0.5).slice(0, participantCount);
      for (const driver of shuffledDrivers) {
        seedRaceRegistrations.push({
          raceId: race.id,
          driverId: driver.id,
          registeredAt: new Date(Date.now() - Math.floor(Math.random() * 5) * 24 * 60 * 60 * 1000),
        });
      }
    }
    
    this._raceRegistrationRepository = new InMemoryRaceRegistrationRepository(seedRaceRegistrations);
 
    // Penalties (seeded in-memory adapter)
    this._penaltyRepository = new InMemoryPenaltyRepository();

    // Scoring preset provider and seeded game/season/scoring config repositories
    this._leagueScoringPresetProvider = new InMemoryLeagueScoringPresetProvider();

    const game = Game.create({ id: 'iracing', name: 'iRacing' });

    const seededSeasons: Season[] = [];
    const seededScoringConfigs = [];

    for (const league of seedData.leagues) {
      const archetype = getDemoLeagueArchetypeByName(league.name);
      if (!archetype) continue;

      const season = Season.create({
        id: `season-${league.id}-demo`,
        leagueId: league.id,
        gameId: game.id,
        name: `${league.name} Demo Season`,
        year: new Date().getFullYear(),
        order: 1,
        status: 'active',
        startDate: new Date(),
        endDate: new Date(),
      });
      seededSeasons.push(season);

      const infraPreset = getLeagueScoringPresetById(
        archetype.scoringPresetId,
      );
      if (!infraPreset) {
        // If a preset is missing, skip scoring config for this league in alpha seed.
        continue;
      }
      const config = infraPreset.createConfig({ seasonId: season.id });
      seededScoringConfigs.push(config);
    }

    this._gameRepository = new InMemoryGameRepository([game]);
    this._seasonRepository = new InMemorySeasonRepository(seededSeasons);
    this._leagueScoringConfigRepository =
      new InMemoryLeagueScoringConfigRepository(seededScoringConfigs);

    // League memberships seeded from static memberships with guaranteed owner roles
    const seededMemberships: LeagueMembership[] = seedData.memberships.map((m) => ({
      leagueId: m.leagueId,
      driverId: m.driverId,
      role: 'member',
      status: 'active',
      joinedAt: new Date(),
    }));

    // Ensure each league owner has an owner membership
    for (const league of seedData.leagues) {
      const existing = seededMemberships.find(
        (m) => m.leagueId === league.id && m.driverId === league.ownerId,
      );
      if (!existing) {
        seededMemberships.push({
          leagueId: league.id,
          driverId: league.ownerId,
          role: 'owner',
          status: 'active',
          joinedAt: new Date(),
        });
      } else {
        existing.role = 'owner';
      }
    }

    // Ensure the primary demo driver owns at least one league in memberships
    const hasPrimaryOwnerMembership = seededMemberships.some(
      (m: LeagueMembership) => m.driverId === primaryDriverId && m.role === 'owner',
    );
    if (!hasPrimaryOwnerMembership && seedData.leagues.length > 0) {
      const targetLeague =
        seedData.leagues.find((l) => l.ownerId === primaryDriverId) ??
        seedData.leagues[0];

      const existingForPrimary = seededMemberships.find(
        (m) => m.leagueId === targetLeague.id && m.driverId === primaryDriverId,
      );

      if (existingForPrimary) {
        existingForPrimary.role = 'owner';
      } else {
        seededMemberships.push({
          leagueId: targetLeague.id,
          driverId: primaryDriverId,
          role: 'owner',
          status: 'active',
          joinedAt: new Date(),
        });
      }
    }

    // Seed sample league admins for the primary driver's league (alpha demo)
    const primaryLeagueForAdmins =
      seedData.leagues.find((l) => l.ownerId === primaryDriverId) ??
      seedData.leagues[0];

    if (primaryLeagueForAdmins) {
      const adminCandidates = seedData.drivers
        .filter((d) => d.id !== primaryLeagueForAdmins.ownerId)
        .slice(0, 2);

      adminCandidates.forEach((driver) => {
        const existing = seededMemberships.find(
          (m) =>
            m.leagueId === primaryLeagueForAdmins.id && m.driverId === driver.id,
        );
        if (existing) {
          if (existing.role !== 'owner') {
            existing.role = 'admin';
          }
        } else {
          seededMemberships.push({
            leagueId: primaryLeagueForAdmins.id,
            driverId: driver.id,
            role: 'admin',
            status: 'active',
            joinedAt: new Date(),
          });
        }
      });
    }

    // Seed a few pending join requests for demo leagues
    const seededJoinRequests: JoinRequest[] = [];
    const demoLeagues = seedData.leagues.slice(0, 2);
    const extraDrivers = seedData.drivers.slice(3, 8);

    demoLeagues.forEach((league) => {
      extraDrivers.forEach((driver, index) => {
        seededJoinRequests.push({
          id: `join-${league.id}-${driver.id}`,
          leagueId: league.id,
          driverId: driver.id,
          requestedAt: new Date(Date.now() - (index + 1) * 24 * 60 * 60 * 1000),
          message:
            index % 2 === 0
              ? 'Would love to race in this series!'
              : 'Looking to join for the upcoming season.',
        });
      });
    });

    this._leagueMembershipRepository = new InMemoryLeagueMembershipRepository(
      seededMemberships,
      seededJoinRequests,
    );

    // Team repositories seeded from static memberships/teams
    this._teamRepository = new InMemoryTeamRepository(
      seedData.teams.map((t) => ({
        id: t.id,
        name: t.name,
        tag: t.tag,
        description: t.description,
        ownerId: seedData.drivers[0]?.id ?? 'driver-1',
        leagues: [t.primaryLeagueId],
        createdAt: new Date(),
      })),
    );

    this._teamMembershipRepository = new InMemoryTeamMembershipRepository(
      seedData.memberships
        .filter((m) => m.teamId)
        .map((m) => ({
          teamId: m.teamId!,
          driverId: m.driverId,
          role: 'driver',
          status: 'active',
          joinedAt: new Date(),
        })),
    );

    // Application-layer use-cases and queries wired with repositories
    this._joinLeagueUseCase = new JoinLeagueUseCase(this._leagueMembershipRepository);
    this._registerForRaceUseCase = new RegisterForRaceUseCase(
      this._raceRegistrationRepository,
      this._leagueMembershipRepository,
    );
    this._withdrawFromRaceUseCase = new WithdrawFromRaceUseCase(
      this._raceRegistrationRepository,
    );
    this._isDriverRegisteredForRaceQuery = new IsDriverRegisteredForRaceQuery(
      this._raceRegistrationRepository,
    );
    this._getRaceRegistrationsQuery = new GetRaceRegistrationsQuery(
      this._raceRegistrationRepository,
    );
    this._getLeagueStandingsQuery = new GetLeagueStandingsQuery(this._standingRepository);

    this._getLeagueDriverSeasonStatsQuery = new GetLeagueDriverSeasonStatsQuery(
      this._standingRepository,
      this._resultRepository,
      this._penaltyRepository,
      {
        getRating: (driverId: string) => {
          const stats = driverStats[driverId];
          if (!stats) {
            return { rating: null, ratingChange: null };
          }
          // For alpha we expose current rating and a mock delta
          const baseline = 1500;
          const delta = stats.rating - baseline;
          return {
            rating: stats.rating,
            ratingChange: delta !== 0 ? delta : null,
          };
        },
      },
    );

    this._getAllLeaguesWithCapacityQuery = new GetAllLeaguesWithCapacityQuery(
      this._leagueRepository,
      this._leagueMembershipRepository,
    );

    this._getAllLeaguesWithCapacityAndScoringQuery =
      new GetAllLeaguesWithCapacityAndScoringQuery(
        this._leagueRepository,
        this._leagueMembershipRepository,
        this._seasonRepository,
        this._leagueScoringConfigRepository,
        this._gameRepository,
        this._leagueScoringPresetProvider,
      );

    this._listLeagueScoringPresetsQuery = new ListLeagueScoringPresetsQuery(
      this._leagueScoringPresetProvider,
    );

    this._getLeagueScoringConfigQuery = new GetLeagueScoringConfigQuery(
      this._leagueRepository,
      this._seasonRepository,
      this._leagueScoringConfigRepository,
      this._gameRepository,
      this._leagueScoringPresetProvider,
    );

    this._getLeagueFullConfigQuery = new GetLeagueFullConfigQuery(
      this._leagueRepository,
      this._seasonRepository,
      this._leagueScoringConfigRepository,
      this._gameRepository,
    );

    this._createLeagueWithSeasonAndScoringUseCase =
      new CreateLeagueWithSeasonAndScoringUseCase(
        this._leagueRepository,
        this._seasonRepository,
        this._leagueScoringConfigRepository,
        this._leagueScoringPresetProvider,
      );

    // Schedule preview query (used by league creation wizard step 3)
    this._previewLeagueScheduleQuery = new PreviewLeagueScheduleQuery();

    // DriverRatingProvider adapter using driverStats
    this._driverRatingProvider = {
      getRating: (driverId: string): number | null => {
        const stats = driverStats[driverId];
        return stats?.rating ?? null;
      },
      getRatings: (driverIds: string[]): Map<string, number> => {
        const result = new Map<string, number>();
        for (const id of driverIds) {
          const stats = driverStats[id];
          if (stats?.rating) {
            result.set(id, stats.rating);
          }
        }
        return result;
      },
    };

    // SOF queries
    this._getRaceWithSOFQuery = new GetRaceWithSOFQuery(
      this._raceRepository,
      this._raceRegistrationRepository,
      this._resultRepository,
      this._driverRatingProvider,
    );

    this._getLeagueStatsQuery = new GetLeagueStatsQuery(
      this._leagueRepository,
      this._raceRepository,
      this._resultRepository,
      this._driverRatingProvider,
    );

    this._createTeamUseCase = new CreateTeamUseCase(
      this._teamRepository,
      this._teamMembershipRepository,
    );
    this._joinTeamUseCase = new JoinTeamUseCase(
      this._teamRepository,
      this._teamMembershipRepository,
    );
    this._leaveTeamUseCase = new LeaveTeamUseCase(this._teamMembershipRepository);
    this._approveTeamJoinRequestUseCase = new ApproveTeamJoinRequestUseCase(
      this._teamMembershipRepository,
    );
    this._rejectTeamJoinRequestUseCase = new RejectTeamJoinRequestUseCase(
      this._teamMembershipRepository,
    );
    this._updateTeamUseCase = new UpdateTeamUseCase(
      this._teamRepository,
      this._teamMembershipRepository,
    );
    this._getAllTeamsQuery = new GetAllTeamsQuery(this._teamRepository);
    this._getTeamDetailsQuery = new GetTeamDetailsQuery(
      this._teamRepository,
      this._teamMembershipRepository,
    );
    this._getTeamMembersQuery = new GetTeamMembersQuery(this._teamMembershipRepository);
    this._getTeamJoinRequestsQuery = new GetTeamJoinRequestsQuery(
      this._teamMembershipRepository,
    );
    this._getDriverTeamQuery = new GetDriverTeamQuery(
      this._teamRepository,
      this._teamMembershipRepository,
    );

    // Social and feed adapters backed by static seed
    this._feedRepository = new InMemoryFeedRepository(seedData);
    this._socialRepository = new InMemorySocialGraphRepository(seedData);

    // Image service backed by demo adapter
    this._imageService = new DemoImageServiceAdapter();

    // Seed Track and Car data for demo
    const seedTracks = [
      Track.create({
        id: 'track-spa',
        name: 'Spa-Francorchamps',
        shortName: 'SPA',
        country: 'Belgium',
        category: 'road',
        difficulty: 'advanced',
        lengthKm: 7.004,
        turns: 19,
        imageUrl: '/images/tracks/spa.jpg',
        gameId: 'iracing',
      }),
      Track.create({
        id: 'track-monza',
        name: 'Autodromo Nazionale Monza',
        shortName: 'MON',
        country: 'Italy',
        category: 'road',
        difficulty: 'intermediate',
        lengthKm: 5.793,
        turns: 11,
        imageUrl: '/images/tracks/monza.jpg',
        gameId: 'iracing',
      }),
      Track.create({
        id: 'track-nurburgring',
        name: 'Nürburgring Grand Prix',
        shortName: 'NUR',
        country: 'Germany',
        category: 'road',
        difficulty: 'advanced',
        lengthKm: 5.148,
        turns: 15,
        imageUrl: '/images/tracks/nurburgring.jpg',
        gameId: 'iracing',
      }),
      Track.create({
        id: 'track-silverstone',
        name: 'Silverstone Circuit',
        shortName: 'SIL',
        country: 'United Kingdom',
        category: 'road',
        difficulty: 'intermediate',
        lengthKm: 5.891,
        turns: 18,
        imageUrl: '/images/tracks/silverstone.jpg',
        gameId: 'iracing',
      }),
      Track.create({
        id: 'track-suzuka',
        name: 'Suzuka International Racing Course',
        shortName: 'SUZ',
        country: 'Japan',
        category: 'road',
        difficulty: 'expert',
        lengthKm: 5.807,
        turns: 18,
        imageUrl: '/images/tracks/suzuka.jpg',
        gameId: 'iracing',
      }),
      Track.create({
        id: 'track-daytona',
        name: 'Daytona International Speedway',
        shortName: 'DAY',
        country: 'United States',
        category: 'oval',
        difficulty: 'intermediate',
        lengthKm: 4.023,
        turns: 4,
        imageUrl: '/images/tracks/daytona.jpg',
        gameId: 'iracing',
      }),
      Track.create({
        id: 'track-laguna',
        name: 'WeatherTech Raceway Laguna Seca',
        shortName: 'LAG',
        country: 'United States',
        category: 'road',
        difficulty: 'advanced',
        lengthKm: 3.602,
        turns: 11,
        imageUrl: '/images/tracks/laguna.jpg',
        gameId: 'iracing',
      }),
    ];

    const seedCars = [
      Car.create({
        id: 'car-porsche-992',
        name: '911 GT3 R',
        shortName: '992 GT3R',
        manufacturer: 'Porsche',
        carClass: 'gt',
        license: 'B',
        year: 2023,
        horsepower: 565,
        weight: 1300,
        gameId: 'iracing',
      }),
      Car.create({
        id: 'car-ferrari-296',
        name: '296 GT3',
        shortName: '296 GT3',
        manufacturer: 'Ferrari',
        carClass: 'gt',
        license: 'B',
        year: 2023,
        horsepower: 600,
        weight: 1270,
        gameId: 'iracing',
      }),
      Car.create({
        id: 'car-mclaren-720s',
        name: '720S GT3 Evo',
        shortName: '720S',
        manufacturer: 'McLaren',
        carClass: 'gt',
        license: 'B',
        year: 2023,
        horsepower: 552,
        weight: 1290,
        gameId: 'iracing',
      }),
      Car.create({
        id: 'car-mercedes-gt3',
        name: 'AMG GT3 2020',
        shortName: 'AMG GT3',
        manufacturer: 'Mercedes',
        carClass: 'gt',
        license: 'B',
        year: 2020,
        horsepower: 550,
        weight: 1285,
        gameId: 'iracing',
      }),
      Car.create({
        id: 'car-lmp2',
        name: 'Dallara P217 LMP2',
        shortName: 'LMP2',
        manufacturer: 'Dallara',
        carClass: 'prototype',
        license: 'A',
        year: 2021,
        horsepower: 600,
        weight: 930,
        gameId: 'iracing',
      }),
      Car.create({
        id: 'car-f4',
        name: 'Formula 4',
        shortName: 'F4',
        manufacturer: 'Tatuus',
        carClass: 'formula',
        license: 'D',
        year: 2022,
        horsepower: 160,
        weight: 570,
        gameId: 'iracing',
      }),
      Car.create({
        id: 'car-mx5',
        name: 'MX-5 Cup',
        shortName: 'MX5',
        manufacturer: 'Mazda',
        carClass: 'sports',
        license: 'D',
        year: 2023,
        horsepower: 181,
        weight: 1128,
        gameId: 'iracing',
      }),
    ];

    this._trackRepository = new InMemoryTrackRepository(seedTracks);
    this._carRepository = new InMemoryCarRepository(seedCars);
  }

  /**
   * Get singleton instance
   */
  static getInstance(): DIContainer {
    if (!DIContainer.instance) {
      DIContainer.instance = new DIContainer();
    }
    return DIContainer.instance;
  }

  /**
   * Reset the container (useful for testing)
   */
  static reset(): void {
    DIContainer.instance = new DIContainer();
  }

  /**
   * Repository getters
   */
  get driverRepository(): IDriverRepository {
    return this._driverRepository;
  }

  get leagueRepository(): ILeagueRepository {
    return this._leagueRepository;
  }

  get raceRepository(): IRaceRepository {
    return this._raceRepository;
  }

  get resultRepository(): IResultRepository {
    return this._resultRepository;
  }

  get standingRepository(): IStandingRepository {
    return this._standingRepository;
  }

  get penaltyRepository(): IPenaltyRepository {
    return this._penaltyRepository;
  }

  get raceRegistrationRepository(): IRaceRegistrationRepository {
    return this._raceRegistrationRepository;
  }

  get leagueMembershipRepository(): ILeagueMembershipRepository {
    return this._leagueMembershipRepository;
  }

  get gameRepository(): IGameRepository {
    return this._gameRepository;
  }

  get seasonRepository(): ISeasonRepository {
    return this._seasonRepository;
  }

  get leagueScoringConfigRepository(): ILeagueScoringConfigRepository {
    return this._leagueScoringConfigRepository;
  }

  get leagueScoringPresetProvider(): LeagueScoringPresetProvider {
    return this._leagueScoringPresetProvider;
  }

  get joinLeagueUseCase(): JoinLeagueUseCase {
    return this._joinLeagueUseCase;
  }

  get registerForRaceUseCase(): RegisterForRaceUseCase {
    return this._registerForRaceUseCase;
  }

  get withdrawFromRaceUseCase(): WithdrawFromRaceUseCase {
    return this._withdrawFromRaceUseCase;
  }

  get isDriverRegisteredForRaceQuery(): IsDriverRegisteredForRaceQuery {
    return this._isDriverRegisteredForRaceQuery;
  }

  get getRaceRegistrationsQuery(): GetRaceRegistrationsQuery {
    return this._getRaceRegistrationsQuery;
  }

  get getLeagueStandingsQuery(): GetLeagueStandingsQuery {
    return this._getLeagueStandingsQuery;
  }

  get getLeagueDriverSeasonStatsQuery(): GetLeagueDriverSeasonStatsQuery {
    return this._getLeagueDriverSeasonStatsQuery;
  }

  get getAllLeaguesWithCapacityQuery(): GetAllLeaguesWithCapacityQuery {
    return this._getAllLeaguesWithCapacityQuery;
  }

  get getAllLeaguesWithCapacityAndScoringQuery(): GetAllLeaguesWithCapacityAndScoringQuery {
    return this._getAllLeaguesWithCapacityAndScoringQuery;
  }

  get listLeagueScoringPresetsQuery(): ListLeagueScoringPresetsQuery {
    return this._listLeagueScoringPresetsQuery;
  }

  get getLeagueScoringConfigQuery(): GetLeagueScoringConfigQuery {
    return this._getLeagueScoringConfigQuery;
  }

  get getLeagueFullConfigQuery(): GetLeagueFullConfigQuery {
    return this._getLeagueFullConfigQuery;
  }

  // Placeholder accessor for schedule preview; API route/UI can call this later.
  get previewLeagueScheduleQuery(): PreviewLeagueScheduleQuery {
    return this._previewLeagueScheduleQuery;
  }

  get getRaceWithSOFQuery(): GetRaceWithSOFQuery {
    return this._getRaceWithSOFQuery;
  }

  get getLeagueStatsQuery(): GetLeagueStatsQuery {
    return this._getLeagueStatsQuery;
  }

  get driverRatingProvider(): DriverRatingProvider {
    return this._driverRatingProvider;
  }

  get createLeagueWithSeasonAndScoringUseCase(): CreateLeagueWithSeasonAndScoringUseCase {
    return this._createLeagueWithSeasonAndScoringUseCase;
  }

  get createTeamUseCase(): CreateTeamUseCase {
    return this._createTeamUseCase;
  }

  get joinTeamUseCase(): JoinTeamUseCase {
    return this._joinTeamUseCase;
  }

  get leaveTeamUseCase(): LeaveTeamUseCase {
    return this._leaveTeamUseCase;
  }

  get approveTeamJoinRequestUseCase(): ApproveTeamJoinRequestUseCase {
    return this._approveTeamJoinRequestUseCase;
  }

  get rejectTeamJoinRequestUseCase(): RejectTeamJoinRequestUseCase {
    return this._rejectTeamJoinRequestUseCase;
  }

  get updateTeamUseCase(): UpdateTeamUseCase {
    return this._updateTeamUseCase;
  }

  get getAllTeamsQuery(): GetAllTeamsQuery {
    return this._getAllTeamsQuery;
  }

  get getTeamDetailsQuery(): GetTeamDetailsQuery {
    return this._getTeamDetailsQuery;
  }

  get getTeamMembersQuery(): GetTeamMembersQuery {
    return this._getTeamMembersQuery;
  }

  get getTeamJoinRequestsQuery(): GetTeamJoinRequestsQuery {
    return this._getTeamJoinRequestsQuery;
  }

  get getDriverTeamQuery(): GetDriverTeamQuery {
    return this._getDriverTeamQuery;
  }

  get teamRepository(): ITeamRepository {
    return this._teamRepository;
  }

  get teamMembershipRepository(): ITeamMembershipRepository {
    return this._teamMembershipRepository;
  }

  get feedRepository(): IFeedRepository {
    return this._feedRepository;
  }

  get socialRepository(): ISocialGraphRepository {
    return this._socialRepository;
  }

  get imageService(): ImageServicePort {
    return this._imageService;
  }

  get trackRepository(): ITrackRepository {
    return this._trackRepository;
  }

  get carRepository(): ICarRepository {
    return this._carRepository;
  }
}

/**
 * Exported accessor functions
 */
export function getDriverRepository(): IDriverRepository {
  return DIContainer.getInstance().driverRepository;
}

export function getLeagueRepository(): ILeagueRepository {
  return DIContainer.getInstance().leagueRepository;
}

export function getRaceRepository(): IRaceRepository {
  return DIContainer.getInstance().raceRepository;
}

export function getResultRepository(): IResultRepository {
  return DIContainer.getInstance().resultRepository;
}

export function getStandingRepository(): IStandingRepository {
  return DIContainer.getInstance().standingRepository;
}

export function getPenaltyRepository(): IPenaltyRepository {
  return DIContainer.getInstance().penaltyRepository;
}

export function getRaceRegistrationRepository(): IRaceRegistrationRepository {
  return DIContainer.getInstance().raceRegistrationRepository;
}

export function getLeagueMembershipRepository(): ILeagueMembershipRepository {
  return DIContainer.getInstance().leagueMembershipRepository;
}

export function getJoinLeagueUseCase(): JoinLeagueUseCase {
  return DIContainer.getInstance().joinLeagueUseCase;
}

export function getRegisterForRaceUseCase(): RegisterForRaceUseCase {
  return DIContainer.getInstance().registerForRaceUseCase;
}

export function getWithdrawFromRaceUseCase(): WithdrawFromRaceUseCase {
  return DIContainer.getInstance().withdrawFromRaceUseCase;
}

export function getIsDriverRegisteredForRaceQuery(): IsDriverRegisteredForRaceQuery {
  return DIContainer.getInstance().isDriverRegisteredForRaceQuery;
}

export function getGetRaceRegistrationsQuery(): GetRaceRegistrationsQuery {
  return DIContainer.getInstance().getRaceRegistrationsQuery;
}

export function getGetLeagueStandingsQuery(): GetLeagueStandingsQuery {
  return DIContainer.getInstance().getLeagueStandingsQuery;
}

export function getGetLeagueDriverSeasonStatsQuery(): GetLeagueDriverSeasonStatsQuery {
  return DIContainer.getInstance().getLeagueDriverSeasonStatsQuery;
}

export function getGetAllLeaguesWithCapacityQuery(): GetAllLeaguesWithCapacityQuery {
  return DIContainer.getInstance().getAllLeaguesWithCapacityQuery;
}

export function getGetAllLeaguesWithCapacityAndScoringQuery(): GetAllLeaguesWithCapacityAndScoringQuery {
  return DIContainer.getInstance().getAllLeaguesWithCapacityAndScoringQuery;
}

export function getGetLeagueScoringConfigQuery(): GetLeagueScoringConfigQuery {
  return DIContainer.getInstance().getLeagueScoringConfigQuery;
}

export function getGetLeagueFullConfigQuery(): GetLeagueFullConfigQuery {
  return DIContainer.getInstance().getLeagueFullConfigQuery;
}

// Placeholder export for future schedule preview API wiring.
export function getPreviewLeagueScheduleQuery(): PreviewLeagueScheduleQuery {
  return DIContainer.getInstance().previewLeagueScheduleQuery;
}

export function getListLeagueScoringPresetsQuery(): ListLeagueScoringPresetsQuery {
  return DIContainer.getInstance().listLeagueScoringPresetsQuery;
}

export function getCreateLeagueWithSeasonAndScoringUseCase(): CreateLeagueWithSeasonAndScoringUseCase {
  return DIContainer.getInstance().createLeagueWithSeasonAndScoringUseCase;
}

export function getGetRaceWithSOFQuery(): GetRaceWithSOFQuery {
  return DIContainer.getInstance().getRaceWithSOFQuery;
}

export function getGetLeagueStatsQuery(): GetLeagueStatsQuery {
  return DIContainer.getInstance().getLeagueStatsQuery;
}

export function getDriverRatingProvider(): DriverRatingProvider {
  return DIContainer.getInstance().driverRatingProvider;
}

export function getTeamRepository(): ITeamRepository {
  return DIContainer.getInstance().teamRepository;
}

export function getTeamMembershipRepository(): ITeamMembershipRepository {
  return DIContainer.getInstance().teamMembershipRepository;
}

export function getCreateTeamUseCase(): CreateTeamUseCase {
  return DIContainer.getInstance().createTeamUseCase;
}

export function getJoinTeamUseCase(): JoinTeamUseCase {
  return DIContainer.getInstance().joinTeamUseCase;
}

export function getLeaveTeamUseCase(): LeaveTeamUseCase {
  return DIContainer.getInstance().leaveTeamUseCase;
}

export function getApproveTeamJoinRequestUseCase(): ApproveTeamJoinRequestUseCase {
  return DIContainer.getInstance().approveTeamJoinRequestUseCase;
}

export function getRejectTeamJoinRequestUseCase(): RejectTeamJoinRequestUseCase {
  return DIContainer.getInstance().rejectTeamJoinRequestUseCase;
}

export function getUpdateTeamUseCase(): UpdateTeamUseCase {
  return DIContainer.getInstance().updateTeamUseCase;
}

export function getGetAllTeamsQuery(): GetAllTeamsQuery {
  return DIContainer.getInstance().getAllTeamsQuery;
}

export function getGetTeamDetailsQuery(): GetTeamDetailsQuery {
  return DIContainer.getInstance().getTeamDetailsQuery;
}

export function getGetTeamMembersQuery(): GetTeamMembersQuery {
  return DIContainer.getInstance().getTeamMembersQuery;
}

export function getGetTeamJoinRequestsQuery(): GetTeamJoinRequestsQuery {
  return DIContainer.getInstance().getTeamJoinRequestsQuery;
}

export function getGetDriverTeamQuery(): GetDriverTeamQuery {
  return DIContainer.getInstance().getDriverTeamQuery;
}

export function getFeedRepository(): IFeedRepository {
  return DIContainer.getInstance().feedRepository;
}

export function getSocialRepository(): ISocialGraphRepository {
  return DIContainer.getInstance().socialRepository;
}

export function getImageService(): ImageServicePort {
  return DIContainer.getInstance().imageService;
}

export function getTrackRepository(): ITrackRepository {
  return DIContainer.getInstance().trackRepository;
}

export function getCarRepository(): ICarRepository {
  return DIContainer.getInstance().carRepository;
}

/**
 * Reset function for testing
 */
export function resetContainer(): void {
  DIContainer.reset();
}

/**
 * Get driver statistics and rankings
 */
export function getDriverStats(driverId: string): DriverStats | null {
  return driverStats[driverId] || null;
}

/**
 * Get all driver rankings sorted by rating
 */
export function getAllDriverRankings(): DriverStats[] {
  return Object.values(driverStats).sort((a, b) => b.rating - a.rating);
}

/**
 * Get league-specific rankings for a driver
 */
export function getLeagueRankings(driverId: string, leagueId: string): {
  rank: number;
  totalDrivers: number;
  percentile: number;
} {
  // Mock league rankings (in production, calculate from actual league membership)
  const mockLeagueRanks: Record<string, Record<string, any>> = {
    'league-1': {
      'driver-1': { rank: 1, totalDrivers: 12, percentile: 92 },
      'driver-2': { rank: 2, totalDrivers: 12, percentile: 84 },
      'driver-3': { rank: 4, totalDrivers: 12, percentile: 67 },
      'driver-4': { rank: 5, totalDrivers: 12, percentile: 58 }
    }
  };

  return mockLeagueRanks[leagueId]?.[driverId] || { rank: 0, totalDrivers: 0, percentile: 0 };
}