/**
    * This file Copyright (c) 2013 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.module.delta;
  
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.module.InstallContext;
  import info.magnolia.repository.RepositoryConstants;
  
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  import javax.jcr.nodetype.NodeDefinition;
  import javax.jcr.nodetype.NodeType;
  import javax.jcr.nodetype.NodeTypeManager;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Install condition to verify that Magnolia node types don't allow same name siblings.
   * The check is performed against the {@link RepositoryConstants#WEBSITE} workspace.
   */
  public class NoSameNameSiblingsCondition extends AbstractCondition {
  
      private static final Logger log = LoggerFactory.getLogger(NoSameNameSiblingsCondition.class);
  
      public static final String[] NODETYPES = new String[] {
              NodeTypes.Content.NAME,
              NodeTypes.ContentNode.NAME,
              NodeTypes.Folder.NAME,
              NodeTypes.Page.NAME,
              NodeTypes.Area.NAME,
              NodeTypes.Component.NAME,
              NodeTypes.User.NAME,
              NodeTypes.Role.NAME,
              NodeTypes.Group.NAME,
              "mgnl:reserve"
      };
  
      public static final String[] WORKSPACES = new String[] {
              RepositoryConstants.CONFIG,
              RepositoryConstants.WEBSITE,
              RepositoryConstants.USERS,
              RepositoryConstants.USER_GROUPS,
              RepositoryConstants.USER_ROLES,
              RepositoryConstants.VERSION_STORE
      };
  
      public NoSameNameSiblingsCondition() {
          super("Same name siblings must be not allowed.", "Ensures that same name siblings are not allowed in Magnolia node types.");
      }
  
      @Override
      public boolean check(InstallContext installContext) {
  
          try {
              for (String workspace : WORKSPACES) {
                  Session session = installContext.getJCRSession(workspace);
                  NodeTypeManager ntManager = session.getWorkspace().getNodeTypeManager();
                  for (String nodetypeName : NODETYPES) {
                      NodeType nodetype = ntManager.getNodeType(nodetypeName);
                      for (NodeDefinition def : nodetype.getChildNodeDefinitions()) {
                          if (def.allowsSameNameSiblings()) {
                              log.error("Child definition of the [{}] node type in workspace [{}] allows same name siblings.", nodetypeName, workspace);
                              return false;
                          }
                      }
                  }
              }
         } catch (RepositoryException ex) {
             log.error("Cannot verify that same name siblings are not allowed.", ex);
             return false;
         }
         // everything OK
         return true;
     }
 
 }