/**
    * This file Copyright (c) 2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.field.factory;
  
  import info.magnolia.objectfactory.ComponentProvider;
  import info.magnolia.ui.api.i18n.I18NAuthoringSupport;
  import info.magnolia.ui.contentapp.browser.preview.PreviewProvider;
  import info.magnolia.ui.framework.component.ItemPreviewComponent;
  import info.magnolia.ui.field.LinkFieldDefinition;
  import info.magnolia.ui.field.LinkField;
  import info.magnolia.ui.framework.datasource.DatasourceSupport;
  import info.magnolia.ui.framework.datasource.components.ItemResolver;
  import info.magnolia.ui.framework.datasource.components.PropertySetFactory;
  import info.magnolia.ui.framework.overlay.ChooserController;
  import info.magnolia.ui.framework.overlay.ChooserController.ChooseResult;
  
  import java.util.Locale;
  import java.util.Optional;
  
  import javax.inject.Inject;
  
  /**
   * Creates and initializes a {@link LinkField} field based on a {@link LinkFieldDefinition}.
   *
   * @param <T> the item type we want to link to.
   * @param <DEF> the type of datasource definition.
   * @param <D> the type of link field definition.
   */
  public class LinkFieldFactory<T, DEF, D extends LinkFieldDefinition<T, DEF>> extends AbstractFieldFactory<D, T, LinkField<T>> {
  
      private final DatasourceSupport datasourceSupport;
      private final ChooserController chooserController;
  
      @Inject
      public LinkFieldFactory(D definition, ComponentProvider componentProvider, Locale locale, I18NAuthoringSupport i18nAuthoringSupport, DatasourceSupport datasourceSupport, ChooserController chooserController) {
          super(definition, componentProvider, locale, i18nAuthoringSupport);
  
          Optional.ofNullable(definition.getChooser())
                  .orElseThrow(() -> new IllegalArgumentException("Could not find a chooser dialog definition at LinkField definition " + definition.getName()));
  
          this.datasourceSupport = datasourceSupport;
          this.chooserController = chooserController;
      }
  
      @Override
      protected LinkField<T> createFieldComponent() {
          final DEF datasource = getDefinition().getDatasource();
  
          final ItemResolver<T> itemResolver = datasourceSupport.getDatasourceBundle(datasource).lookup(ItemResolver.class, datasource)
                  .orElseThrow(() -> new IllegalArgumentException("Could not resolve item resolver from definition " + getDefinition().getName()));
  
          final LinkField<T> linkField = new LinkField<>(itemResolver);
  
          Optional.ofNullable(getDefinition().getPlaceholder()).filter(p -> !isMessageKey(p))
                  .ifPresent(placeholder -> linkField.setPlaceholder(placeholder));
  
          linkField.setButtonCaptionNew(isMessageKey(getDefinition().getButtonSelectNewLabel()) ?
                  getDefinition().getButtonSelectNewDefaultLabel() : getDefinition().getButtonSelectNewLabel());
  
          linkField.setButtonCaptionOther(isMessageKey(getDefinition().getButtonSelectOtherLabel()) ?
                  getDefinition().getButtonSelectOtherDefaultLabel() : getDefinition().getButtonSelectOtherLabel());
  
          linkField.setEditable(getDefinition().isEditable());
          linkField.setDisableOnClick(true);
  
          linkField.addClickListener(event ->
                  chooserController.openChooser(getDefinition().getChooser(), linkField.getValue()).whenComplete((ChooseResult<T> result, Throwable err) -> {
  
                     linkField.setEnabled(true);
 
                     if (err != null) {
                         throw new RuntimeException(err);
                     }
 
                     result.getChoice().ifPresent(linkField::setValue);
                 }));
 
         newItemPreviewComponent().ifPresent(itemPreviewComponent -> {
             linkField.addValueChangeListener(event -> {
                 itemPreviewComponent.onValueChange((event.getValue()));
                 itemPreviewComponent.setVisible(event.getValue() != null);
             });
             linkField.setContentPreview(itemPreviewComponent);
         });
 
         return linkField;
     }
 
     protected Optional<? extends ItemPreviewComponent<T>> newItemPreviewComponent() {
         Class<? extends ItemPreviewComponent<T>> previewComponentClass = Optional.ofNullable(getDefinition().getPreview())
                 .map(def -> def.getImplementationClass()).orElse(null);
 
         return Optional.ofNullable(previewComponentClass).map(clazz -> {
             final DEF datasource = getDefinition().getDatasource();
 
             final PreviewProvider<T> previewProvider = datasourceSupport.getDatasourceBundle(datasource).lookup(PreviewProvider.class, datasource)
                     .orElse(null);
 
             final PropertySetFactory<T> propertySetFactory = datasourceSupport.getDatasourceBundle(datasource).lookup(PropertySetFactory.class, datasource)
                     .orElseThrow(() -> new IllegalArgumentException("Could not resolve PropertySetFactory for datasource " + datasource));
 
             return getComponentProvider().newInstance(clazz, propertySetFactory, previewProvider);
         });
     }
 }