/**
    * This file Copyright (c) 2013-2018 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.module.delta;
  
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.module.InstallContext;
  import info.magnolia.repository.RepositoryConstants;
  import info.magnolia.repository.RepositoryManager;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  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 List<String> WORKSPACES = Arrays.asList(
              RepositoryConstants.CONFIG,
              RepositoryConstants.WEBSITE,
              RepositoryConstants.USERS,
              RepositoryConstants.USER_GROUPS,
              RepositoryConstants.USER_ROLES
      );
  
      private final RepositoryManager repositoryManager;
  
      public NoSameNameSiblingsCondition(RepositoryManager repositoryManager) {
          super("Same name siblings must be not allowed.", "Ensures that same name siblings are not allowed in Magnolia node types.");
          this.repositoryManager = repositoryManager;
      }
  
      @Override
      public boolean check(InstallContext installContext) {
          try {
              List<String> workspaces = new ArrayList<>();
              for (String workspaceName : repositoryManager.getWorkspaceNames()) {
                  if (workspaceName.contains(RepositoryConstants.VERSION_STORE)) {
                      workspaces.add(workspaceName);
                  }
              }
              workspaces.addAll(WORKSPACES);
             for (String workspaceName : workspaces) {
                 Session session = installContext.getJCRSession(workspaceName);
                 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, workspaceName);
                             return false;
                         }
                     }
                 }
             }
         } catch (RepositoryException ex) {
             log.error("Cannot verify that same name siblings are not allowed.", ex);
             return false;
         }
         // everything OK
         return true;
     }
 
 }