/**
    * This file Copyright (c) 2016-2018 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.contentapp.browser.action;
  
  import info.magnolia.ui.api.action.AbstractAction;
  import info.magnolia.ui.api.action.ActionDefinition;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.action.ActionExecutor;
  import info.magnolia.ui.api.availability.AvailabilityChecker;
  import info.magnolia.ui.api.availability.AvailabilityDefinition;
  import info.magnolia.ui.vaadin.integration.contentconnector.ContentConnector;
  import info.magnolia.ui.vaadin.integration.jcr.JcrItemAdapter;
  import org.apache.commons.lang3.StringUtils;
  
  import javax.inject.Inject;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import java.util.Arrays;
  import java.util.List;
  
  /**
   * Action which delegates to another action by node type.
   */
  public class DelegateByNodeTypeAction extends AbstractAction<DelegateByNodeTypeActionDefinition> {
  
      private final JcrItemAdapter item;
      private final ActionExecutor actionExecutor;
      private final AvailabilityChecker availabilityChecker;
      private final ContentConnector contentConnector;
  
      @Inject
      public DelegateByNodeTypeAction(DelegateByNodeTypeActionDefinition definition, ActionExecutor actionExecutor, JcrItemAdapter item, AvailabilityChecker availabilityChecker, ContentConnector contentConnector) {
          super(definition);
          this.item = item;
          this.actionExecutor = actionExecutor;
          this.availabilityChecker = availabilityChecker;
          this.contentConnector = contentConnector;
      }
  
      @Override
      public void execute() throws ActionExecutionException {
          if (item.getJcrItem().isNode()) {
              Node node = (Node) item.getJcrItem();
              try {
                  String nodeType = node.getPrimaryNodeType().getName();
                  String action = resolveActionForNodeType(nodeType);
                  if (StringUtils.isNotBlank(action)) {
                      executeAction(action);
                  }
              } catch (RepositoryException e) {
                  throw new ActionExecutionException("Failed to determine type of action for " + node + ".\n" + e.getMessage(), e);
              }
          }
      }
  
      private void executeAction(String actionName) throws ActionExecutionException {
          ActionDefinition actionDefinition = actionExecutor.getActionDefinition(actionName);
          if (actionDefinition != null) {
              AvailabilityDefinition availability = actionDefinition.getAvailability();
              List<Object> itemIdAsList = Arrays.<Object>asList(item.getItemId());
              if (availabilityChecker.isAvailable(availability, itemIdAsList)) {
                  Object[] args = new Object[]{contentConnector.getItem(item.getItemId())};
                  actionExecutor.execute(actionName, args);
              }
          }
      }
  
      private String resolveActionForNodeType(String nodeType) {
         for (DelegateByNodeTypeActionDefinition.NodeTypeToActionMapping nodeTypeToActionMapping : getDefinition().getNodeTypeToActionMappings()) {
             if (nodeType.equals(nodeTypeToActionMapping.getNodeType())) {
                 return nodeTypeToActionMapping.getAction();
             }
         }
         return null;
     }
 
 }