import type { ILeagueRepository } from '../../domain/repositories/ILeagueRepository';
import type { ILeagueMembershipRepository } from '../../domain/repositories/ILeagueMembershipRepository';
import type { ISeasonRepository } from '../../domain/repositories/ISeasonRepository';
import type { ILeagueScoringConfigRepository } from '../../domain/repositories/ILeagueScoringConfigRepository';
import type { IGameRepository } from '../../domain/repositories/IGameRepository';
import type { LeagueScoringPresetProvider } from '../ports/LeagueScoringPresetProvider';
import type { IAllLeaguesWithCapacityAndScoringPresenter, LeagueEnrichedData } from '../presenters/IAllLeaguesWithCapacityAndScoringPresenter';

/**
 * Use Case for retrieving all leagues with capacity and scoring information.
 * Orchestrates domain logic and delegates presentation to the presenter.
 */
export class GetAllLeaguesWithCapacityAndScoringUseCase {
  constructor(
    private readonly leagueRepository: ILeagueRepository,
    private readonly leagueMembershipRepository: ILeagueMembershipRepository,
    private readonly seasonRepository: ISeasonRepository,
    private readonly leagueScoringConfigRepository: ILeagueScoringConfigRepository,
    private readonly gameRepository: IGameRepository,
    private readonly presetProvider: LeagueScoringPresetProvider,
    public readonly presenter: IAllLeaguesWithCapacityAndScoringPresenter,
  ) {}

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

    const enrichedLeagues: LeagueEnrichedData[] = [];

    for (const league of leagues) {
      const members = await this.leagueMembershipRepository.getLeagueMembers(league.id);

      const usedDriverSlots = members.filter(
        (m) =>
          m.status === 'active' &&
          (m.role === 'owner' ||
            m.role === 'admin' ||
            m.role === 'steward' ||
            m.role === 'member'),
      ).length;

      const seasons = await this.seasonRepository.findByLeagueId(league.id);
      const activeSeason = seasons && seasons.length > 0
        ? seasons.find((s) => s.status === 'active') ?? seasons[0]
        : undefined;

      let scoringConfig;
      let game;
      let preset;

      if (activeSeason) {
        scoringConfig = await this.leagueScoringConfigRepository.findBySeasonId(activeSeason.id);
        if (scoringConfig) {
          game = await this.gameRepository.findById(activeSeason.gameId);
          const presetId = scoringConfig.scoringPresetId;
          if (presetId) {
            preset = this.presetProvider.getPresetById(presetId);
          }
        }
      }

      enrichedLeagues.push({
        league,
        usedDriverSlots,
        season: activeSeason,
        scoringConfig,
        game,
        preset,
      });
    }

    this.presenter.present(enrichedLeagues);
  }
}