import { Injectable, Inject } from '@nestjs/common';
import { AllRacesPageViewModel, RaceStatsDto, ImportRaceResultsInput, ImportRaceResultsSummaryViewModel } from './dto/RaceDto';

// Core imports
import type { Logger } from '@core/shared/application/Logger';

// Use cases
import { GetAllRacesUseCase } from '@core/racing/application/use-cases/GetAllRacesUseCase';
import { GetTotalRacesUseCase } from '@core/racing/application/use-cases/GetTotalRacesUseCase';
import { ImportRaceResultsApiUseCase } from '@core/racing/application/use-cases/ImportRaceResultsApiUseCase';

// Presenters
import { GetAllRacesPresenter } from './presenters/GetAllRacesPresenter';
import { GetTotalRacesPresenter } from './presenters/GetTotalRacesPresenter';
import { ImportRaceResultsApiPresenter } from './presenters/ImportRaceResultsApiPresenter';

// Tokens
import { LOGGER_TOKEN } from './RaceProviders';

@Injectable()
export class RaceService {
  constructor(
    private readonly getAllRacesUseCase: GetAllRacesUseCase,
    private readonly getTotalRacesUseCase: GetTotalRacesUseCase,
    private readonly importRaceResultsApiUseCase: ImportRaceResultsApiUseCase,
    @Inject(LOGGER_TOKEN) private readonly logger: Logger,
  ) {}

  async getAllRaces(): Promise<AllRacesPageViewModel> {
    this.logger.debug('[RaceService] Fetching all races.');

    const presenter = new GetAllRacesPresenter();
    await this.getAllRacesUseCase.execute({}, presenter);
    return presenter.getViewModel()!;
  }

  async getTotalRaces(): Promise<RaceStatsDto> {
    this.logger.debug('[RaceService] Fetching total races count.');
    const presenter = new GetTotalRacesPresenter();
    await this.getTotalRacesUseCase.execute({}, presenter);
    return presenter.getViewModel()!;
  }

  async importRaceResults(input: ImportRaceResultsInput): Promise<ImportRaceResultsSummaryViewModel> {
    this.logger.debug('Importing race results:', input);
    const presenter = new ImportRaceResultsApiPresenter();
    await this.importRaceResultsApiUseCase.execute({ raceId: input.raceId, resultsFileContent: input.resultsFileContent }, presenter);
    return presenter.getViewModel()!;
  }
}