/**
    * This file Copyright (c) 2017-2018 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.framework.action;
  
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.jcr.predicate.AbstractPredicate;
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.jcr.util.NodeUtil;
  import info.magnolia.ui.api.action.ActionExecutor;
  import info.magnolia.ui.api.context.UiContext;
  import info.magnolia.ui.vaadin.integration.contentconnector.ContentConnector;
  import info.magnolia.ui.vaadin.integration.contentconnector.JcrContentConnector;
  import info.magnolia.ui.vaadin.integration.contentconnector.NodeTypeDefinition;
  import info.magnolia.ui.vaadin.integration.jcr.JcrItemAdapter;
  
  import java.util.List;
  
  import javax.inject.Inject;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  
  import org.apache.commons.lang3.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.v7.data.Item;
  
  /**
   * Delete confirmation action which notifies if sub-nodes were modified.
   *
   * @param <D> {@link DeleteConfirmationActionDefinition}.
   * @deprecated since 6.0. Use info.magnolia.ui.contentapp.action.DeleteNodesConfirmationAction instead.
   */
  @Deprecated
  public class DeleteConfirmationAction<D extends DeleteConfirmationActionDefinition> extends ConfirmationAction<D> {
  
      private static final Logger log = LoggerFactory.getLogger(DeleteConfirmationAction.class);
      private static final String NL = "<br />";
  
      private ModifiedSubNodesWithNodeTypePredicate predicate = null;
  
      @Inject
      public DeleteConfirmationAction(D definition, List<? extends JcrItemAdapter> items, UiContext uiContext, ActionExecutor actionExecutor, SimpleTranslator i18n, ContentConnector contentConnector) {
          super(definition, items, uiContext, actionExecutor, i18n, contentConnector);
          if (contentConnector instanceof JcrContentConnector) {
              this.predicate = new ModifiedSubNodesWithNodeTypePredicate(((JcrContentConnector) contentConnector).getContentConnectorDefinition().getNodeTypes());
          }
      }
  
      @Override
      protected String getConfirmationMessage() throws Exception {
          if (predicate == null) {
              return super.getConfirmationMessage();
          }
          StringBuilder label = new StringBuilder();
  
          // Default message
          label.append(super.getConfirmationMessage());
  
          boolean warningAlreadySet = false;
          for (Item item : getItems()) {
              JcrItemAdapter jcrItemAdapter = (JcrItemAdapter) item;
              if (!jcrItemAdapter.isNode()) {
                  continue;
              }
              Node node = (Node) jcrItemAdapter.getJcrItem();
              String modifiedSubNodesPaths = getModifiedSubNodesMessage(node);
              if (StringUtils.isNotEmpty(modifiedSubNodesPaths)) {
                 if (!warningAlreadySet) {
                     label.append(NL).append(NL);
                     label.append(getSimpleTranslator().translate("confirmation.delete.modified.message"));
                     label.append(NL);
                     warningAlreadySet = true;
                 }
                 label.append(modifiedSubNodesPaths);
             }
         }
         return label.toString();
     }
 
     private String getModifiedSubNodesMessage(Node parent) throws RepositoryException {
         StringBuilder stringBuilder = new StringBuilder();
         Iterable<Node> nodes = NodeUtil.collectAllChildren(parent, predicate);
         for (Node node : nodes) {
             stringBuilder.append(node.getPath());
             stringBuilder.append(NL);
         }
         return stringBuilder.toString();
     }
 
     private class ModifiedSubNodesWithNodeTypePredicate extends AbstractPredicate<Node> {
 
         private final List<NodeTypeDefinition> nodeTypes;
 
         private ModifiedSubNodesWithNodeTypePredicate(List<NodeTypeDefinition> nodeTypes) {
             this.nodeTypes = nodeTypes;
         }
 
         @Override
         public boolean evaluateTyped(Node node) {
             try {
                 for (NodeTypeDefinition nodeType : nodeTypes) {
                     if (node.isNodeType(nodeType.getName())) {
                         return NodeTypes.Activatable.ACTIVATION_STATUS_MODIFIED == NodeTypes.Activatable.getActivationStatus(node);
                     }
                 }
             } catch (RepositoryException e) {
                 log.error("Unable to read nodeType for node {}", node);
             }
             return false;
         }
     }
 }