import { IContactRepository } from '../../../Domain/IRepository/IContactRepository';
import { GetContactByIdQuery } from './GetContactByIdQuery';
import { DetailContactDto } from '../../DTOs/ContactDto';
import { ContactMapper } from '../../DTOs/Mappers/ContactMapper';

export class GetContactByIdQueryHandler {
  constructor(private readonly contactRepo: IContactRepository) {}

  async execute(query: GetContactByIdQuery): Promise<DetailContactDto | null> {
    const contact = await this.contactRepo.findById(query.id);
    if (!contact) {
      return null;
    }
    return ContactMapper.toDetailDto(contact);
  }
}