import type { ILeagueMembershipRepository } from '../../domain/repositories/ILeagueMembershipRepository';
import type { IDriverRepository } from '../../domain/repositories/IDriverRepository';
import type { IGetLeagueJoinRequestsPresenter, GetLeagueJoinRequestsResultDTO, GetLeagueJoinRequestsViewModel } from '../presenters/IGetLeagueJoinRequestsPresenter';
import type { UseCase } from '@core/shared/application/UseCase';

export interface GetLeagueJoinRequestsUseCaseParams {
  leagueId: string;
}

export interface GetLeagueJoinRequestsResultDTO {
  joinRequests: unknown[];
  drivers: { id: string; name: string }[];
}

export class GetLeagueJoinRequestsUseCase implements UseCase<GetLeagueJoinRequestsUseCaseParams, GetLeagueJoinRequestsResultDTO, GetLeagueJoinRequestsViewModel, IGetLeagueJoinRequestsPresenter> {
  constructor(
    private readonly leagueMembershipRepository: ILeagueMembershipRepository,
    private readonly driverRepository: IDriverRepository,
  ) {}

  async execute(params: GetLeagueJoinRequestsUseCaseParams, presenter: IGetLeagueJoinRequestsPresenter): Promise<void> {
    const joinRequests = await this.leagueMembershipRepository.getJoinRequests(params.leagueId);
    const driverIds = joinRequests.map(r => r.driverId);
    const drivers = await this.driverRepository.findByIds(driverIds);
    const driverMap = new Map(drivers.map(d => [d.id, { id: d.id, name: d.name }]));
    const dto: GetLeagueJoinRequestsResultDTO = {
      joinRequests,
      drivers: Array.from(driverMap.values()),
    };
    presenter.reset();
    presenter.present(dto);
  }
}