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;
  
  import java.util.Optional;
  
  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.apache.causeway.commons.collections.Can;
  import org.apache.causeway.commons.collections.ImmutableEnumSet;
  import org.apache.causeway.commons.internal._Constants;
  import org.apache.causeway.commons.internal.base._Strings;
  import org.apache.causeway.commons.internal.exceptions._Exceptions;
  import org.apache.causeway.commons.internal.reflection._ClassCache;
  import org.apache.causeway.commons.internal.reflection._GenericResolver;
  import org.apache.causeway.commons.internal.reflection._GenericResolver.ResolvedMethod;
  import org.apache.causeway.core.metamodel.facetapi.FeatureType;
  import org.apache.causeway.core.metamodel.services.events.MetamodelEventService;
  
  import lombok.experimental.UtilityClass;
  
  @UtilityClass
  class _Utils {
  
      DomainEventHelper domainEventHelper() {
          return new DomainEventHelper(new MetamodelEventService(__->{}));
      }
  
      boolean contains(final Class<?>[] array, final Class<?> val) {
          for (final Class<?> element : array) {
              if (element == val) return true;
          }
          return false;
      }
  
      boolean contains(final ImmutableEnumSet<FeatureType> featureTypes, final FeatureType featureType) {
          if(featureTypes==null
              || featureType==null) return false;
  
          return featureTypes.contains(featureType);
      }
  
      Optional<ResolvedMethod> findMethodExact(final Class<?> type, final String methodName, final Class<?>[] parameterTypes) {
          try {
              return _GenericResolver.resolveMethod(type.getMethod(methodName, parameterTypes), type);
          } catch (NoSuchMethodException | SecurityException e) {
              return Optional.empty();
          }
      }
  
      Optional<ResolvedMethod> findMethodExact(final Class<?> type, final String methodName) {
          return findMethodExact(type, methodName, _Constants.emptyClasses);
      }
  
      ResolvedMethod findMethodExactOrFail(final Class<?> type, final String methodName, final Class<?>[] paramTypes) {
          return findMethodExact(type, methodName, paramTypes)
                  .orElseThrow(()->
                  _Exceptions.noSuchElement("method '%s' not found in %s", methodName, type));
      }
  
      ResolvedMethod findMethodExactOrFail(final Class<?> type, final String methodName) {
          return findMethodExactOrFail(type, methodName, _Constants.emptyClasses);
      }
  
      Can<ResolvedMethod> findMethodsByName(final Class<?> type, final String methodName) {
          var matchingMethods = _ClassCache.getInstance().streamResolvedMethods(type)
                  .filter(method->method.name().equals(methodName))
                  .collect(Can.toCan());
          return matchingMethods;
      }
  
      ResolvedMethod findMethodByNameOrFail(final Class<?> type, final String methodName) {
          return _ClassCache.getInstance().findMethodUniquelyByNameOrFail(type, methodName);
      }
  
      Optional<ResolvedMethod> findGetter(final Class<?> declaringClass, final String propertyName) {
          return _Utils.findMethodExact(declaringClass, "get" + _Strings.capitalize(propertyName))
                  .or(()->_Utils.findMethodExact(declaringClass, "is" + _Strings.capitalize(propertyName)))
                  .or(()->declaringClass.isRecord()
                      ? _Utils.findMethodExact(declaringClass, propertyName)
                      : Optional.empty());
      }
  
      ResolvedMethod findGetterOrFail(final Class<?> declaringClass, final String propertyName) {
          var getter = findGetter(declaringClass, propertyName)
                      .orElseThrow(()->
                          _Exceptions.noSuchElement("getter '%s' not found in %s", propertyName, declaringClass));
          return getter;
      }
  
      void assertMethodEquals(final ResolvedMethod a, final ResolvedMethod b) {
          assertEquals(a.name(), b.name());
          assertEquals(a.paramCount(), b.paramCount());
          assertArrayEquals(a.paramTypes(), b.paramTypes());
  
          var ownerA = a.method().getDeclaringClass();
          var ownerB = b.method().getDeclaringClass();
  
          assertTrue(ownerA.isAssignableFrom(ownerB)
                  || ownerB.isAssignableFrom(ownerA));
  
      }
  
  }
  