/**
    * This file Copyright (c) 2003-2010 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.cms.beans.config.ContentRepository;
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.core.ItemType;
  import info.magnolia.cms.exchange.ActivationManager;
  import info.magnolia.cms.exchange.ActivationManagerFactory;
  import info.magnolia.cms.exchange.Subscriber;
  import info.magnolia.cms.security.Permission;
  import info.magnolia.cms.security.Role;
  import info.magnolia.cms.security.Security;
  import info.magnolia.cms.util.ContentUtil;
  import info.magnolia.importexport.Bootstrapper;
  import info.magnolia.module.InstallContext;
  import info.magnolia.module.model.ModuleDefinition;
  import info.magnolia.module.model.RepositoryDefinition;
  
  import javax.jcr.RepositoryException;
  
  /**
   * Bootstrap empty repositories for the current module. (loading is already performed before install tasks)
   * 
   * @author gjoseph
   * @version $Revision: 32667 $ ($Author: gjoseph $)
   */
  public class SetupModuleRepositoriesTask extends AbstractTask {
  
      public SetupModuleRepositoriesTask() {
          super("Setup module repositories", "Bootstrap empty repositories, grant them to superuser and subscribe them so that activation can be used.");
      }
  
      // TODO finer exception handling ?
      public void execute(InstallContext ctx) throws TaskExecutionException {
          try {
              final ModuleDefinition def = ctx.getCurrentModuleDefinition();
              // register repositories
              for (RepositoryDefinition repDef : def.getRepositories()) {
                  for (final String workspace : repDef.getWorkspaces()) {
                      // bootstrap the workspace if empty
                      if (!ContentRepository.checkIfInitialized(workspace)) {
                          final String[] bootstrapDirs = Bootstrapper.getBootstrapDirs();
                          Bootstrapper.bootstrapRepository(bootstrapDirs, workspace, new Bootstrapper.BootstrapFilter() {
                              public boolean accept(String filename) {
                                  return filename.startsWith(workspace + ".");
                              }
                          });
                      }
  
                      // TODO : split these in separate tasks ?
                      grantRepositoryToSuperuser(workspace);
                      subscribeRepository(workspace);
                  }
              }
          }
          catch (Throwable e) {
              throw new TaskExecutionException("Could not bootstrap workspace: " + e.getMessage(), e);
          }
  
      }
  
      private void grantRepositoryToSuperuser(String workspace) {
          // grant repository to superuser - TODO : maybe this shouldn't use the RoleManager, as we shouldn't assume it's ready yet.
          final Role superuser = Security.getRoleManager().getRole("superuser");
          superuser.addPermission(workspace, "/*", Permission.ALL);
      }
  
     /**
      * Register the repository to get used for activation
      * TODO - use an API for this? But same remark as above, the component might not be ready yet.
      */
     private void subscribeRepository(String repository) throws TaskExecutionException {
         ActivationManager sManager = ActivationManagerFactory.getActivationManager();
         for (Subscriber subscriber : sManager.getSubscribers()) {
             if (!subscriber.isSubscribed("/", repository)) {
                 Content subscriptionsNode = ContentUtil.getContent(ContentRepository.CONFIG, sManager.getConfigPath()
                         + "/"
                         + subscriber.getName()
                         + "/subscriptions");
                 try {
                     Content newSubscription = subscriptionsNode.createContent(repository, ItemType.CONTENTNODE);
                     newSubscription.createNodeData("toURI").setValue("/");
                     newSubscription.createNodeData("repository").setValue(repository);
                     newSubscription.createNodeData("fromURI").setValue("/");
                     // subscriptionsNode.save();
                 }
                 catch (RepositoryException re) {
                     throw new TaskExecutionException("wasn't able to subscribe repository [" + repository + "]", re);
                 }
             }
         }
     }
 }