/**
 * Use Case: GetRacePenaltiesUseCase
 *
 * Returns all penalties applied for a specific race, with driver details.
 * Orchestrates domain logic and delegates presentation to the presenter.
 */

import type { IPenaltyRepository } from '../../domain/repositories/IPenaltyRepository';
import type { IDriverRepository } from '../../domain/repositories/IDriverRepository';
import type { RacePenaltiesOutputPort } from '../ports/output/RacePenaltiesOutputPort';
import type { AsyncUseCase } from '@core/shared/application/AsyncUseCase';
import { Result } from '@core/shared/application/Result';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';

export interface GetRacePenaltiesInput {
  raceId: string;
}

export class GetRacePenaltiesUseCase implements AsyncUseCase<GetRacePenaltiesInput, RacePenaltiesOutputPort, 'NO_ERROR'> {
  constructor(
    private readonly penaltyRepository: IPenaltyRepository,
    private readonly driverRepository: IDriverRepository,
  ) {}

  async execute(input: GetRacePenaltiesInput): Promise<Result<RacePenaltiesOutputPort, ApplicationErrorCode<'NO_ERROR'>>> {
    const penalties = await this.penaltyRepository.findByRaceId(input.raceId);

    const driverIds = new Set<string>();
    penalties.forEach((penalty) => {
      driverIds.add(penalty.driverId);
      driverIds.add(penalty.issuedBy);
    });

    const drivers = await Promise.all(
      Array.from(driverIds).map((id) => this.driverRepository.findById(id)),
    );

    const validDrivers = drivers.filter((driver): driver is NonNullable<typeof driver> => driver !== null);

    const outputPort: RacePenaltiesOutputPort = {
      penalties,
      drivers: validDrivers,
    };
    return Result.ok(outputPort);
  }
}