content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.core.metamodel.postprocessors.members;
  
  import jakarta.inject.Inject;
  
  import org.apache.causeway.core.metamodel.context.MetaModelContext;
  import org.apache.causeway.core.metamodel.facets.actions.action.invocation.ActionDomainEventFacet;
  import org.apache.causeway.core.metamodel.facets.collections.collection.modify.CollectionDomainEventFacet;
  import org.apache.causeway.core.metamodel.facets.properties.property.modify.PropertyDomainEventFacet;
  import org.apache.causeway.core.metamodel.postprocessors.MetaModelPostProcessorAbstract;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  import org.apache.causeway.core.metamodel.spec.feature.ObjectAction;
  import org.apache.causeway.core.metamodel.spec.feature.OneToManyAssociation;
  import org.apache.causeway.core.metamodel.spec.feature.OneToOneAssociation;
  import org.apache.causeway.core.metamodel.specloader.validator.ValidationFailure;
  
  /**
   * Mixed-in members use the domain-event type as specified with the mixee type,
   * <pre>@DomainObject()</pre>
   * unless overwritten by the mixin type.
   */
  public class SynthesizeDomainEventsForMixinPostProcessor
  extends MetaModelPostProcessorAbstract {
  
      @Inject
      public SynthesizeDomainEventsForMixinPostProcessor(final MetaModelContext metaModelContext) {
          super(metaModelContext);
      }
  
      @Override
      public void postProcessAction(final ObjectSpecification objectSpecification, final ObjectAction objectAction) {
          if(objectAction.isMixedIn()) {
              objectAction
                  .lookupFacet(ActionDomainEventFacet.class)
                  .ifPresentOrElse(
                          facet->facet.initWithMixee(objectSpecification),
                          ()->reportMissing(objectAction));
          }
      }
  
      @Override
      public void postProcessProperty(final ObjectSpecification objectSpecification, final OneToOneAssociation property) {
          if(property.isMixedIn()) {
              property
                  .lookupFacet(PropertyDomainEventFacet.class)
                  .ifPresentOrElse(
                          facet->facet.initWithMixee(objectSpecification),
                          ()->reportMissing(property));
          }
      }
  
      @Override
      public void postProcessCollection(final ObjectSpecification objectSpecification, final OneToManyAssociation collection) {
          if(collection.isMixedIn()) {
              collection
                  .lookupFacet(CollectionDomainEventFacet.class)
                  .ifPresentOrElse(
                          facet->facet.initWithMixee(objectSpecification),
                          ()->reportMissing(collection));
          }
      }
  
      // -- HELPER
  
      private void reportMissing(final ObjectAction act) {
          ValidationFailure.raiseFormatted(act,
                  "ActionDomainEventFacet for %s should have already been created via "
                  + "ActionAnnotationFacetFactory, yet was not. (possible causes: mixin declartion is invalid)",
                  act.getFeatureIdentifier());
      }
      private void reportMissing(final OneToOneAssociation prop) {
          ValidationFailure.raiseFormatted(prop,
                  "PropertyDomainEventFacet for %s should have already been created via "
                  + "PropertyAnnotationFacetFactory, yet was not. (possible causes: mixin declartion is invalid)",
                  prop.getFeatureIdentifier());
      }
      private void reportMissing(final OneToManyAssociation coll) {
          ValidationFailure.raiseFormatted(coll,
                  "CollectionDomainEventFacet for %s should have already been created via "
                  + "CollectionAnnotationFacetFactory, yet was not. (possible causes: mixin declartion is invalid)",
                  coll.getFeatureIdentifier());
      }
  
  }
  