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.viewer.wicket.ui.components.object.icontitle;
  
  import org.apache.wicket.Component;
  import org.apache.wicket.model.IModel;
  
  import org.apache.causeway.commons.internal.exceptions._Exceptions;
  import org.apache.causeway.core.metamodel.spec.ObjectSpecification;
  import org.apache.causeway.viewer.commons.model.components.UiComponentType;
  import org.apache.causeway.viewer.wicket.model.models.ProposedValueModel;
  import org.apache.causeway.viewer.wicket.model.models.ObjectAdapterModel;
  import org.apache.causeway.viewer.wicket.model.models.UiAttributeWkt;
  import org.apache.causeway.viewer.wicket.ui.ComponentFactory;
  import org.apache.causeway.viewer.wicket.ui.ComponentFactoryAbstract;
  
  /**
   * {@link ComponentFactory} for {@link ObjectIconAndTitlePanel}.
   *
   * @implNote Knows how to deal with {@link ObjectAdapterModel}. And for
   * {@link UiAttributeWkt} we have an adapter {@link ProposedValueModel}
   * that implements {@link ObjectAdapterModel}, such that it can also deal
   * with {@link UiAttributeWkt}.
   *
   */
  public class ObjectIconAndTitlePanelFactory extends ComponentFactoryAbstract {
  
      public ObjectIconAndTitlePanelFactory(
              final UiComponentType uiComponentType,
              final Class<?> componentClass) {
          super(uiComponentType, componentClass);
      }
  
      public ObjectIconAndTitlePanelFactory(
              final UiComponentType uiComponentType,
              final String name,
              final Class<?> componentClass) {
          super(uiComponentType, name, componentClass);
      }
  
      public ObjectIconAndTitlePanelFactory() {
          this(UiComponentType.OBJECT_ICON_AND_TITLE, ObjectIconAndTitlePanel.class);
      }
  
      @Override
      protected ApplicationAdvice appliesTo(final IModel<?> model) {
  
          final ObjectSpecification spec;
  
          if (model instanceof ObjectAdapterModel) {
              spec = ((ObjectAdapterModel) model).getTypeOfSpecification();
          } else if (model instanceof UiAttributeWkt) {
              spec = ((UiAttributeWkt) model).getElementType();
          } else {
              return ApplicationAdvice.DOES_NOT_APPLY;
          }
  
          return spec.isSingular()
                  && !spec.isValue()
                          ? ApplicationAdvice.APPLIES
                          : ApplicationAdvice.DOES_NOT_APPLY;
      }
  
      @Override
      public Component createComponent(final String id, final IModel<?> model) {
  
          final ObjectAdapterModel objectAdapterModel;
  
          if (model instanceof ObjectAdapterModel) {
              objectAdapterModel = (ObjectAdapterModel) model;
          } else if (model instanceof UiAttributeWkt) {
              var attributeModel = (UiAttributeWkt) model;
              // effectively acts as an adapter from UiAttribute to ObjectAdapterModel
              objectAdapterModel = ProposedValueModel.chain(attributeModel);
          } else {
              throw _Exceptions.unexpectedCodeReach();
          }
  
          return new ObjectIconAndTitlePanel(id, objectAdapterModel);
      }
  
      /**
       * refactoring hint: go through proper ComponentFactory channels instead
       */
      public static Component entityIconAndTitlePanel(
              final String componentId,
              final ObjectAdapterModel objectAdapterModel) {
          return new ObjectIconAndTitlePanel(componentId, objectAdapterModel);
      }
  
  }
  