package fr.tiogars.inception.domains.domaintemplate.services;
   
   import java.util.ArrayList;
   import java.util.List;
   
   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.CreateDomainTemplateRequest;
  import fr.tiogars.inception.domains.domaintemplate.models.DomainTemplate;
  import fr.tiogars.inception.domains.domaintemplate.repositories.DomainTemplateRepository;
  
  /** Creates or updates DomainTemplates from seed data. */
  @Service
  public class DomainTemplateSeedService {
  
      private final DomainTemplateRepository repository;
  
      @Autowired
      public DomainTemplateSeedService(DomainTemplateRepository repository) {
          this.repository = repository;
      }
  
      /**
       * Creates or updates templates by immutable business code.
       *
       * @param requests business data to seed
       * @return stored templates in input order
       */
      @Transactional
      public List<DomainTemplate> seed(List<CreateDomainTemplateRequest> requests) {
          List<DomainTemplate> storedTemplates = new ArrayList<>();
          for (CreateDomainTemplateRequest request : requests) {
              DomainTemplateEntity entity = repository.findByCode(request.code())
                      .map(existing -> {
                          existing.update(request.label(), request.description());
                          return existing;
                      })
                      .orElseGet(() -> new DomainTemplateEntity(
                              request.code(), request.label(), request.description()));
              storedTemplates.add(toRecord(repository.saveAndFlush(entity)));
          }
          return storedTemplates;
      }
  
      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());
      }
  }