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.ignore.annotation;
  
  import java.util.function.Predicate;
  
  import jakarta.inject.Inject;
  
  import org.apache.causeway.commons.internal.functions._Predicates;
  import org.apache.causeway.commons.internal.reflection._ClassCache.Attribute;
  import org.apache.causeway.commons.internal.reflection._GenericResolver.ResolvedMethod;
  import org.apache.causeway.core.config.progmodel.ProgrammingModelConstants;
  import org.apache.causeway.core.metamodel.context.MetaModelContext;
  import org.apache.causeway.core.metamodel.facetapi.FeatureType;
  import org.apache.causeway.core.metamodel.facets.FacetFactoryAbstract;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  
  import org.jspecify.annotations.NonNull;
  
  public class RemoveAnnotatedMethodsFacetFactory
  extends FacetFactoryAbstract {
  
      @Inject
      public RemoveAnnotatedMethodsFacetFactory(final MetaModelContext mmc) {
          super(mmc, FeatureType.OBJECTS_ONLY);
      }
  
      @Override
      public void process(final ProcessClassContext processClassContext) {
  
          var policy = getMetaModelContext().getConfiguration().getCore().getMetaModel().getIntrospector().getPolicy();
          switch (policy) {
              case ENCAPSULATION_ENABLED:
                  getClassCache()
                          .streamResolvedMethods(processClassContext.getCls())
                          /* honor exclude markers (always) */
                          .filter(method->{
                              if(ProgrammingModelConstants.MethodExcludeMarker.anyMatchOn(method)) {
                                  processClassContext.removeMethod(method);
                                  return false; // stop processing
                              }
                              return true; // continue processing
                          })
                          /* don't throw away mixin main methods,
                           * those we keep irrespective of IntrospectionPolicy */
                          .filter(_Predicates.not(isMixinMainMethod(processClassContext)))
                          .forEach(method -> {
                              if (!ProgrammingModelConstants.MethodIncludeMarker.anyMatchOn(method)) {
                                  processClassContext.removeMethod(method);
                              }
                          });
                  break;
  
              case ANNOTATION_REQUIRED:
                  // TODO: this could probably be more precise and insist on @Domain.Include for members.
  
              case ANNOTATION_OPTIONAL:
  
                  getClassCache()
                          .streamPublicMethods(processClassContext.getCls())
                          .forEach(method->{
                              if(ProgrammingModelConstants.MethodExcludeMarker.anyMatchOn(method)) {
                                  processClassContext.removeMethod(method);
                              }
                          });
  
                  break;
          }
      }
  
      // -- HELPER
  
      /**
       * We have no MixinFacet yet, so we need to revert to low level introspection tactics.
       */
      private Predicate<ResolvedMethod> isMixinMainMethod(final @NonNull ProcessClassContext processClassContext) {
  
          // shortcut, when we already know the class is not a mixin
          if(processClassContext.getFacetHolder() instanceof ObjectSpecification) {
              var spec = (ObjectSpecification) processClassContext.getFacetHolder();
              if(!spec.getBeanSort().isMixin()) {
                  return method->false;
              }
          }
          // lookup attribute from class-cache as it should have been already processed by the BeanTypeClassifier
          var cls = processClassContext.getCls();
          var mixinMainMethodName = getClassCache().head(cls).attributeMap().get(Attribute.MIXIN_MAIN_METHOD_NAME);
          return method->method.name().equals(mixinMainMethodName);
      }
  
  }
  