import { IDeckRepository } from '../../../Domain/IRepository/IDeckRepository';
import { GetDeckByIdQuery } from './GetDeckByIdQuery';
import { DetailDeckDto } from '../../DTOs/DeckDto';
import { DeckMapper } from '../../DTOs/Mappers/DeckMapper';

export class GetDeckByIdQueryHandler {
  constructor(private readonly deckRepo: IDeckRepository) {}

  async execute(query: GetDeckByIdQuery): Promise<DetailDeckDto | null> {
    const deck = await this.deckRepo.findById(query.id);
    if (!deck) return null;
    return DeckMapper.toDetailDto(deck);
  }
}