import type { Logger } from '@core/shared/application';
import type { IDriverRepository } from '@core/racing/domain/repositories/IDriverRepository';
import type { ILeagueRepository } from '@core/racing/domain/repositories/ILeagueRepository';
import type { IRaceRepository } from '@core/racing/domain/repositories/IRaceRepository';
import type { IResultRepository } from '@core/racing/domain/repositories/IResultRepository';
import type { IStandingRepository } from '@core/racing/domain/repositories/IStandingRepository';
import type { ILeagueMembershipRepository } from '@core/racing/domain/repositories/ILeagueMembershipRepository';
import type { IRaceRegistrationRepository } from '@core/racing/domain/repositories/IRaceRegistrationRepository';
import type { ITeamRepository } from '@core/racing/domain/repositories/ITeamRepository';
import type { ITeamMembershipRepository } from '@core/racing/domain/repositories/ITeamMembershipRepository';
import type { ISponsorRepository } from '@core/racing/domain/repositories/ISponsorRepository';
import type { ISeasonRepository } from '@core/racing/domain/repositories/ISeasonRepository';
import type { ILeagueScoringConfigRepository } from '@core/racing/domain/repositories/ILeagueScoringConfigRepository';
import type { ISeasonSponsorshipRepository } from '@core/racing/domain/repositories/ISeasonSponsorshipRepository';
import type { ISponsorshipRequestRepository } from '@core/racing/domain/repositories/ISponsorshipRequestRepository';
import type { ILeagueWalletRepository } from '@core/racing/domain/repositories/ILeagueWalletRepository';
import type { ITransactionRepository } from '@core/racing/domain/repositories/ITransactionRepository';
import type { Season } from '@core/racing/domain/entities/season/Season';
import { getLeagueScoringPresetById } from './LeagueScoringPresets';
import type { IProtestRepository } from '@core/racing/domain/repositories/IProtestRepository';
import type { IPenaltyRepository } from '@core/racing/domain/repositories/IPenaltyRepository';
import type { IFeedRepository } from '@core/social/domain/repositories/IFeedRepository';
import type { ISocialGraphRepository } from '@core/social/domain/repositories/ISocialGraphRepository';
import { createRacingSeed } from './racing/RacingSeed';
import { seedId } from './racing/SeedIdHelper';
import { DriverStatsStore } from '@adapters/racing/services/DriverStatsStore';
import { TeamStatsStore } from '@adapters/racing/services/TeamStatsStore';

export type RacingSeedDependencies = {
  driverRepository: IDriverRepository;
  leagueRepository: ILeagueRepository;
  seasonRepository: ISeasonRepository;
  leagueScoringConfigRepository: ILeagueScoringConfigRepository;
  seasonSponsorshipRepository: ISeasonSponsorshipRepository;
  sponsorshipRequestRepository: ISponsorshipRequestRepository;
  leagueWalletRepository: ILeagueWalletRepository;
  transactionRepository: ITransactionRepository;
  protestRepository: IProtestRepository;
  penaltyRepository: IPenaltyRepository;
  raceRepository: IRaceRepository;
  resultRepository: IResultRepository;
  standingRepository: IStandingRepository;
  leagueMembershipRepository: ILeagueMembershipRepository;
  raceRegistrationRepository: IRaceRegistrationRepository;
  teamRepository: ITeamRepository;
  teamMembershipRepository: ITeamMembershipRepository;
  sponsorRepository: ISponsorRepository;
  feedRepository: IFeedRepository;
  socialGraphRepository: ISocialGraphRepository;
};

export class SeedRacingData {
  constructor(
    private readonly logger: Logger,
    private readonly seedDeps: RacingSeedDependencies,
  ) {}

  private getApiPersistence(): 'postgres' | 'inmemory' {
    const configured = process.env.GRIDPILOT_API_PERSISTENCE?.toLowerCase();
    if (configured === 'postgres' || configured === 'inmemory') {
      return configured;
    }

    if (process.env.NODE_ENV === 'test') {
      return 'inmemory';
    }

    return process.env.DATABASE_URL ? 'postgres' : 'inmemory';
  }

  async execute(): Promise<void> {
    const existingDrivers = await this.seedDeps.driverRepository.findAll();
    const persistence = this.getApiPersistence();
    
    // Check for force reseed via environment variable
    const forceReseedRaw = process.env.GRIDPILOT_API_FORCE_RESEED;
    const forceReseed = forceReseedRaw !== undefined && forceReseedRaw !== '0' && forceReseedRaw.toLowerCase() !== 'false';
    
    if (existingDrivers.length > 0 && !forceReseed) {
      this.logger.info('[Bootstrap] Racing seed skipped (drivers already exist), ensuring scoring configs');
      await this.ensureScoringConfigsForExistingData();
      return;
    }

    if (forceReseed && existingDrivers.length > 0) {
      this.logger.info('[Bootstrap] Force reseed enabled - clearing existing racing data');
      await this.clearExistingRacingData();
    }

    const seed = createRacingSeed({
      persistence,
      driverCount: 150 // Expanded from 100 to 150
    });

    // Populate the driver stats store for the InMemoryDriverStatsService
    const driverStatsStore = DriverStatsStore.getInstance();
    driverStatsStore.clear(); // Clear any existing stats
    driverStatsStore.loadStats(seed.driverStats);

    this.logger.info(`[Bootstrap] Loaded driver stats for ${seed.driverStats.size} drivers`);

    // Populate the team stats store for the AllTeamsPresenter
    const teamStatsStore = TeamStatsStore.getInstance();
    teamStatsStore.clear(); // Clear any existing stats
    teamStatsStore.loadStats(seed.teamStats);

    this.logger.info(`[Bootstrap] Loaded team stats for ${seed.teamStats.size} teams`);

    let sponsorshipRequestsSeededViaRepo = false;
    const seedableSponsorshipRequests = this.seedDeps
      .sponsorshipRequestRepository as unknown as { seed?: (input: unknown) => void };

    if (typeof seedableSponsorshipRequests.seed === 'function') {
      seedableSponsorshipRequests.seed(seed.sponsorshipRequests);
      sponsorshipRequestsSeededViaRepo = true;
    }

    for (const driver of seed.drivers) {
      try {
        await this.seedDeps.driverRepository.create(driver);
      } catch {
        // ignore duplicates
      }
    }

    for (const league of seed.leagues) {
      try {
        await this.seedDeps.leagueRepository.create(league);
      } catch {
        // ignore duplicates
      }
    }

    for (const season of seed.seasons) {
      try {
        await this.seedDeps.seasonRepository.create(season);
      } catch {
        // ignore duplicates
      }
    }

    const activeSeasons = seed.seasons.filter((season) => season.status.isActive());
    for (const season of activeSeasons) {
      const presetId = this.selectScoringPresetIdForSeason(season, persistence);
      const preset = getLeagueScoringPresetById(presetId);

      if (!preset) {
        this.logger.warn(
          `[Bootstrap] Scoring preset not found (presetId=${presetId}, seasonId=${season.id}, leagueId=${season.leagueId})`,
        );
        continue;
      }

      const scoringConfig = preset.createConfig({ seasonId: season.id });

      try {
        await this.seedDeps.leagueScoringConfigRepository.save(scoringConfig);
      } catch {
        // ignore duplicates
      }
    }

    for (const sponsorship of seed.seasonSponsorships) {
      try {
        await this.seedDeps.seasonSponsorshipRepository.create(sponsorship);
      } catch {
        // ignore duplicates
      }
    }

    if (!sponsorshipRequestsSeededViaRepo) {
      for (const request of seed.sponsorshipRequests) {
        try {
          await this.seedDeps.sponsorshipRequestRepository.create(request);
        } catch {
          // ignore duplicates
        }
      }
    }

    for (const wallet of seed.leagueWallets) {
      try {
        await this.seedDeps.leagueWalletRepository.create(wallet);
      } catch {
        // ignore duplicates
      }
    }

    for (const tx of seed.leagueWalletTransactions) {
      try {
        await this.seedDeps.transactionRepository.create(tx);
      } catch {
        // ignore duplicates
      }
    }

    for (const protest of seed.protests) {
      try {
        await this.seedDeps.protestRepository.create(protest);
      } catch {
        // ignore duplicates
      }
    }

    for (const penalty of seed.penalties) {
      try {
        await this.seedDeps.penaltyRepository.create(penalty);
      } catch {
        // ignore duplicates
      }
    }

    for (const race of seed.races) {
      try {
        await this.seedDeps.raceRepository.create(race);
      } catch {
        // ignore duplicates
      }
    }

    try {
      await this.seedDeps.resultRepository.createMany(seed.results);
    } catch {
      // ignore duplicates
    }

    for (const membership of seed.leagueMemberships) {
      try {
        await this.seedDeps.leagueMembershipRepository.saveMembership(membership);
      } catch {
        // ignore duplicates
      }
    }

    for (const request of seed.leagueJoinRequests) {
      try {
        await this.seedDeps.leagueMembershipRepository.saveJoinRequest(request);
      } catch {
        // ignore duplicates
      }
    }

    for (const team of seed.teams) {
      try {
        await this.seedDeps.teamRepository.create(team);
      } catch {
        // ignore duplicates
      }
    }

    for (const sponsor of seed.sponsors) {
      try {
        await this.seedDeps.sponsorRepository.create(sponsor);
      } catch {
        // ignore duplicates
      }
    }

    for (const membership of seed.teamMemberships) {
      try {
        await this.seedDeps.teamMembershipRepository.saveMembership(membership);
      } catch {
        // ignore duplicates
      }
    }

    for (const request of seed.teamJoinRequests) {
      try {
        await this.seedDeps.teamMembershipRepository.saveJoinRequest(request);
      } catch {
        // ignore duplicates
      }
    }

    for (const registration of seed.raceRegistrations) {
      try {
        await this.seedDeps.raceRegistrationRepository.register(registration);
      } catch {
        // ignore duplicates
      }
    }

    try {
      await this.seedDeps.standingRepository.saveMany(seed.standings);
    } catch {
      // ignore duplicates
    }

    const seedableFeed = this.seedDeps.feedRepository as unknown as { seed?: (input: unknown) => void };
    if (typeof seedableFeed.seed === 'function') {
      seedableFeed.seed({
        drivers: seed.drivers,
        friendships: seed.friendships,
        feedEvents: seed.feedEvents,
      });
    }

    const seedableSocial = this.seedDeps.socialGraphRepository as unknown as { seed?: (input: unknown) => void };
    if (typeof seedableSocial.seed === 'function') {
      seedableSocial.seed({
        drivers: seed.drivers,
        friendships: seed.friendships,
        feedEvents: seed.feedEvents,
      });
    }

    this.logger.info(
      `[Bootstrap] Seeded racing data: drivers=${seed.drivers.length}, leagues=${seed.leagues.length}, races=${seed.races.length}`,
    );
  }

  private async clearExistingRacingData(): Promise<void> {
    // Get all existing drivers
    const drivers = await this.seedDeps.driverRepository.findAll();

    // Delete drivers first (this should cascade to related data in most cases)
    for (const driver of drivers) {
      try {
        await this.seedDeps.driverRepository.delete(driver.id);
      } catch {
        // Ignore errors
      }
    }

    // Try to clean up other data if repositories support it
    try {
      const leagues = await this.seedDeps.leagueRepository.findAll();
      for (const league of leagues) {
        try {
          await this.seedDeps.leagueRepository.delete(league.id.toString());
        } catch {
          // Ignore
        }
      }
    } catch {
      // Ignore
    }

    this.logger.info('[Bootstrap] Cleared existing racing data');
  }

  private async ensureScoringConfigsForExistingData(): Promise<void> {
    const leagues = await this.seedDeps.leagueRepository.findAll();

    for (const league of leagues) {
      const seasons = await this.seedDeps.seasonRepository.findByLeagueId(league.id.toString());
      const activeSeasons = seasons.filter((season) => season.status.isActive());

      for (const season of activeSeasons) {
        const existing = await this.seedDeps.leagueScoringConfigRepository.findBySeasonId(season.id);
        if (existing) continue;

        const presetId = this.selectScoringPresetIdForSeason(season, 'postgres');
        const preset = getLeagueScoringPresetById(presetId);

        if (!preset) {
          this.logger.warn(
            `[Bootstrap] Scoring preset not found (presetId=${presetId}, seasonId=${season.id}, leagueId=${season.leagueId})`,
          );
          continue;
        }

        const scoringConfig = preset.createConfig({ seasonId: season.id });

        try {
          await this.seedDeps.leagueScoringConfigRepository.save(scoringConfig);
        } catch {
          // ignore duplicates
        }
      }
    }
  }

  private selectScoringPresetIdForSeason(season: Season, persistence: 'postgres' | 'inmemory'): string {
    const expectedLeagueId = seedId('league-5', persistence);
    const expectedSeasonId = seedId('season-1-b', persistence);
    
    if (season.leagueId === expectedLeagueId && season.status.isActive()) {
      return 'sprint-main-driver';
    }

    if (season.leagueId === seedId('league-3', persistence)) {
      return season.id === expectedSeasonId ? 'sprint-main-team' : 'club-default-nations';
    }

    const match = /^league-(\d+)$/.exec(season.leagueId);
    const leagueNumber = match ? Number(match[1]) : undefined;

    if (leagueNumber !== undefined) {
      switch (leagueNumber % 4) {
        case 0:
          return 'sprint-main-team';
        case 1:
          return 'endurance-main-trophy';
        case 2:
          return 'sprint-main-driver';
        case 3:
          return 'club-default-nations';
      }
    }

    return 'club-default';
  }
}