import { PageQuery } from '@/lib/contracts/page-queries/PageQuery';
import { Result } from '@/lib/contracts/Result';
import { LeagueService, type LeagueDetailData } from '@/lib/services/leagues/LeagueService';
import { type PresentationError, mapToPresentationError } from '@/lib/contracts/page-queries/PresentationError';
import { LeagueDetailViewDataBuilder } from '@/lib/builders/view-data/LeagueDetailViewDataBuilder';
import { LeagueDetailViewData } from '@/lib/view-data/LeagueDetailViewData';

/**
 * LeagueDetail page query
 * Returns the raw API DTO for the league detail page
 * No DI container usage - constructs dependencies explicitly
 */
export class LeagueDetailPageQuery implements PageQuery<LeagueDetailViewData, string, PresentationError> {
  async execute(leagueId: string): Promise<Result<LeagueDetailViewData, PresentationError>> {
    const service = new LeagueService();
    const result = await service.getLeagueDetailData(leagueId);

    if (result.isErr()) {
      return Result.err(mapToPresentationError(result.getError()));
    }

    const viewData = LeagueDetailViewDataBuilder.build(result.unwrap());
    return Result.ok(viewData);
  }

  // Static method to avoid object construction in server code
  static async execute(leagueId: string): Promise<Result<LeagueDetailViewData, PresentationError>> {
    const query = new LeagueDetailPageQuery();
    return query.execute(leagueId);
  }
}