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.object.hidden.method;
  
  import java.util.Optional;
  import java.util.function.BiConsumer;
  
  import org.jspecify.annotations.Nullable;
  
  import org.apache.causeway.commons.internal.reflection._GenericResolver.ResolvedMethod;
  import org.apache.causeway.core.metamodel.facetapi.FacetHolder;
  import org.apache.causeway.core.metamodel.facets.HasImperativeAspect;
  import org.apache.causeway.core.metamodel.facets.ImperativeAspect;
  import org.apache.causeway.core.metamodel.facets.object.hidden.HiddenObjectFacet;
  import org.apache.causeway.core.metamodel.facets.object.hidden.HiddenObjectFacetAbstract;
  import org.apache.causeway.core.metamodel.interactions.vis.VisibilityContext;
  import org.apache.causeway.core.metamodel.object.ManagedObject;
  
  import lombok.Getter;
  import org.jspecify.annotations.NonNull;
  
  public class HiddenObjectFacetViaMethod
  extends HiddenObjectFacetAbstract
  implements HasImperativeAspect {
  
      @Getter(onMethod_ = {@Override}) private final @NonNull ImperativeAspect imperativeAspect;
  
      public static Optional<HiddenObjectFacet> create(
              final @Nullable ResolvedMethod methodIfAny,
              final FacetHolder holder) {
  
          return Optional.ofNullable(methodIfAny)
          .map(method->ImperativeAspect.singleRegularMethod(method, Intent.CHECK_IF_HIDDEN))
          .map(imperativeAspect->new HiddenObjectFacetViaMethod(imperativeAspect, holder));
      }
  
      private HiddenObjectFacetViaMethod(final ImperativeAspect imperativeAspect, final FacetHolder holder) {
          super(holder);
          this.imperativeAspect = imperativeAspect;
      }
  
      @Override
      public String hides(final VisibilityContext ic) {
          final ManagedObject toValidate = ic.target();
          return toValidate != null ? hiddenReason(toValidate) : null;
      }
  
      @Override
      public String hiddenReason(final ManagedObject target) {
          final boolean isHidden = imperativeAspect.eval(target, false);
          return isHidden ? "Hidden" : null;
      }
  
      @Override
      public HiddenObjectFacetViaMethod clone(final FacetHolder holder) {
          return new HiddenObjectFacetViaMethod(imperativeAspect, holder);
      }
  
      @Override
      public void visitAttributes(final BiConsumer<String, Object> visitor) {
          super.visitAttributes(visitor);
          imperativeAspect.visitAttributes(visitor);
      }
  }
  