/**
 * Application Use Case: GetSponsorsUseCase
 *
 * Retrieves all sponsors.
 */

import type { ISponsorRepository } from '../../domain/repositories/ISponsorRepository';
import type { Sponsor } from '../../domain/entities/sponsor/Sponsor';
import type { UseCaseOutputPort } from '@core/shared/application/UseCaseOutputPort';
import { Result } from '@core/shared/application/Result';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';

type GetSponsorsResult = {
  sponsors: Sponsor[];
};

export class GetSponsorsUseCase {
  constructor(
    private readonly sponsorRepository: ISponsorRepository,
    private readonly output: UseCaseOutputPort<GetSponsorsResult>,
  ) {}

  async execute(): Promise<Result<void, ApplicationErrorCode<'REPOSITORY_ERROR'>>> {
    try {
      const sponsors = await this.sponsorRepository.findAll();

      this.output.present({ sponsors });

      return Result.ok(undefined);
    } catch {
      return Result.err({ code: 'REPOSITORY_ERROR', message: 'Failed to fetch sponsors' });
    }
  }
}