import type { IRaceRepository } from '../../domain/repositories/IRaceRepository';
import type { IGetTotalRacesPresenter, GetTotalRacesResultDTO, GetTotalRacesViewModel } from '../presenters/IGetTotalRacesPresenter';
import type { UseCase } from '@core/shared/application/UseCase';

export interface GetTotalRacesUseCaseParams {}

export interface GetTotalRacesResultDTO {
  totalRaces: number;
}

export class GetTotalRacesUseCase implements UseCase<GetTotalRacesUseCaseParams, GetTotalRacesResultDTO, GetTotalRacesViewModel, IGetTotalRacesPresenter> {
  constructor(private readonly raceRepository: IRaceRepository) {}

  async execute(params: GetTotalRacesUseCaseParams, presenter: IGetTotalRacesPresenter): Promise<void> {
    const races = await this.raceRepository.findAll();
    const dto: GetTotalRacesResultDTO = { totalRaces: races.length };
    presenter.reset();
    presenter.present(dto);
  }
}