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.facets.param.choices;
  
  import java.util.Optional;
  
  import org.apache.causeway.commons.collections.Can;
  import org.apache.causeway.core.metamodel.consent.InteractionInitiatedBy;
  import org.apache.causeway.core.metamodel.facetapi.FacetHolder;
  import org.apache.causeway.core.metamodel.facets.objectvalue.choices.ChoicesFacet;
  import org.apache.causeway.core.metamodel.interactions.managed.ActionInteractionHead;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  import org.apache.causeway.core.metamodel.spec.feature.ObjectActionParameter;
  
  import org.jspecify.annotations.NonNull;
  
  public class ActionParameterChoicesFacetFromElementType
  extends ActionParameterChoicesFacetAbstract {
  
      public static Optional<ActionParameterChoicesFacet> create(
              final @NonNull ObjectActionParameter param) {
  
          return param.getElementType()
                  .lookupNonFallbackFacet(ChoicesFacet.class)
                  .map(choicesFacet->
                      new ActionParameterChoicesFacetFromElementType(choicesFacet, param.getFacetHolder()));
      }
  
      private final ChoicesFacet choicesFacet;
  
      private ActionParameterChoicesFacetFromElementType(
              final ChoicesFacet choicesFacet,
              final FacetHolder holder) {
          super(holder, Precedence.INFERRED);
          this.choicesFacet = choicesFacet;
      }
  
      @Override
      public Can<ManagedObject> getChoices(
              final ObjectSpecification requiredSpec,
              final ActionInteractionHead head,
              final Can<ManagedObject> pendingArgs,
              final InteractionInitiatedBy interactionInitiatedBy) {
          return choicesFacet.getChoices(head.target(), interactionInitiatedBy);
      }
  
  }
  