DomainTemplateUpdateService.java

package fr.tiogars.inception.domains.domaintemplate.services;

import java.util.Optional;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import fr.tiogars.inception.domains.domaintemplate.entities.DomainTemplateEntity;
import fr.tiogars.inception.domains.domaintemplate.models.DomainTemplate;
import fr.tiogars.inception.domains.domaintemplate.models.UpdateDomainTemplateRequest;
import fr.tiogars.inception.domains.domaintemplate.repositories.DomainTemplateRepository;

/** Updates existing DomainTemplates. */
@Service
public class DomainTemplateUpdateService {

    private final DomainTemplateRepository repository;

    @Autowired
    public DomainTemplateUpdateService(DomainTemplateRepository repository) {
        this.repository = repository;
    }

    /**
     * Updates the mutable fields of a DomainTemplate.
     *
     * @param id      persistent identifier
     * @param request replacement business data
     * @return updated template, or an empty optional when it does not exist
     */
    @Transactional
    public Optional<DomainTemplate> update(Long id, UpdateDomainTemplateRequest request) {
        return repository.findById(id)
                .map(existing -> {
                    existing.update(request.label(), request.description());
                    return toRecord(repository.saveAndFlush(existing));
                });
    }

    private static DomainTemplate toRecord(DomainTemplateEntity entity) {
        return new DomainTemplate(
                entity.getId(),
                entity.getCode(),
                entity.getLabel(),
                entity.getDescription(),
                entity.getCreatedDate(),
                entity.getLastModifiedDate(),
                entity.getCreatedBy(),
                entity.getLastModifiedBy());
    }
}