/**
    * This file Copyright (c) 2021 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.editor;
  
  import static info.magnolia.ui.editor.JcrIndexedMultiPropertyValueProvider.TMP_REMOVED;
  
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.jcr.util.NodeUtil;
  import info.magnolia.jcr.wrapper.DelegatePropertyWrapper;
  import info.magnolia.ui.api.i18n.I18NAuthoringSupport;
  import info.magnolia.ui.field.EditorPropertyDefinition;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Locale;
  import java.util.Optional;
  
  import javax.jcr.Node;
  import javax.jcr.Property;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  import javax.jcr.Value;
  
  import com.machinezoo.noexception.Exceptions;
  
  /**
   * Resolves multi-field entries based on single value properties.
   *
   * @deprecated since 6.2.7. This class is for compatibility use only to compensate compatibility UI
   * {@link info.magnolia.ui.form.field.transformer.multi.MultiValueChildNodeTransformer} behaviour.
   */
  @Deprecated
  public class MultiValueAsMultipleProperties implements ItemProviderStrategy<Property, Node> {
  
      private final EditorPropertyDefinition relatedFieldDefinition;
      private final LocaleContext localeContext;
      private final I18NAuthoringSupport<Node> i18NAuthoringSupport;
  
      public MultiValueAsMultipleProperties(LocaleContext localeContext, I18NAuthoringSupport<Node> i18NAuthoringSupport, EditorPropertyDefinition relatedFieldDefinition) {
          this.relatedFieldDefinition = relatedFieldDefinition;
          this.localeContext = localeContext;
          this.i18NAuthoringSupport = i18NAuthoringSupport;
      }
  
      @Override
      public Optional<Property> read(Node reference) {
          return read(reference, i18NAuthoringSupport.getDefaultLocale(reference));
      }
  
      @Override
      public Optional<Property> read(Node node, Locale locale) {
          return Optional.of(node)
                  .map(Exceptions.wrap().function(parent -> getMultiFieldNode(parent, locale)))
                  .map(Wrapper::new);
      }
  
      private Node getMultiFieldNode(Node node, Locale locale) throws RepositoryException {
          return NodeUtil.createPath(node, getLocalisedParentNodeName(locale), NodeTypes.ContentNode.NAME);
      }
  
      private String getLocalisedParentNodeName(Locale locale) {
          String parentNodeName = relatedFieldDefinition.getName();
          if (!localeContext.getDefault().equals(locale)) {
              parentNodeName = i18NAuthoringSupport.deriveLocalisedPropertyName(parentNodeName, locale);
          }
          return parentNodeName;
      }
  
     /**
      * Definition of {@link MultiValueAsMultipleProperties}.
      *
      * deprecated since 6.2.7, use {@link JcrPropertyProvider.Definition} instead.
      */
     @Deprecated
     public static class Definition extends JcrPropertyProvider.Definition {
 
         public Definition() {
             setImplementationClass((Class) MultiValueAsMultipleProperties.class);
         }
     }
 
     private static class Wrapper extends DelegatePropertyWrapper {
 
         private final Node node;
 
         private Wrapper(Node node) {
             super(null);
             this.node = node;
         }
 
         @Override
         public Value[] getValues() throws RepositoryException {
             int i = 0;
             final List<Value> values = new ArrayList<>();
             while (node.hasProperty(String.valueOf(i))) {
                 values.add(node.getProperty(String.valueOf(i)).getValue());
                 i++;
             }
             return values.toArray(new Value[] {});
         }
 
         @Override
         public void setValue(Value[] values) throws RepositoryException {
             for (int i = 0; i < values.length; i++) {
                 node.setProperty(String.valueOf(i), TMP_REMOVED.equals(values[i].getString()) ? null : values[i]);
             }
         }
 
         @Override
         public Session getSession() throws RepositoryException {
             return node.getSession();
         }
 
         @Override
         public boolean isNode() {
             return false;
         }
     }
 }