/*
    * Copyright (C) 2003-2013 eXo Platform SAS.
    *
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU Affero General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
    * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with this program. If not, see <http://www.gnu.org/licenses/>.
   */
  package org.exoplatform.services.cms.jcrext.activity;
  
  import javax.jcr.Item;
  import javax.jcr.Node;
  import javax.jcr.Property;
  import javax.jcr.Session;
  
  import org.apache.commons.chain.Context;
  import org.exoplatform.services.command.action.Action;
  import org.exoplatform.services.jcr.ext.common.SessionProvider;
  import org.exoplatform.services.listener.ListenerService;
  import org.exoplatform.services.security.ConversationState;
  import org.exoplatform.services.wcm.core.NodetypeConstant;
  import org.exoplatform.services.wcm.utils.WCMCoreUtils;
  
  public class EditFilePropertyActivityAction implements Action{
    private ListenerService listenerService=null;
    private ActivityCommonService activityService = null;
    public EditFilePropertyActivityAction() {
      listenerService =  WCMCoreUtils.getService(ListenerService.class);
      activityService = WCMCoreUtils.getService(ActivityCommonService.class);
    }
    @Override
    public boolean execute(Context context) throws Exception {
      Item item = (Item) context.get("currentItem");
      Node node = (item instanceof Property) ? item.getParent() : (Node) item;
      String propertyName = item.getName();
  
      // Do not create / update activity for bellow cases
      if (!activityService.isAcceptedFileProperties(propertyName) || ConversationState.getCurrent() == null) return false;
  
      if(node.isNodeType(NodetypeConstant.NT_RESOURCE)) node = node.getParent();
      if(!node.getPrimaryNodeType().getName().equals(NodetypeConstant.NT_FILE)) return false;
      if(propertyName.equals(NodetypeConstant.JCR_DATA)) {
        SessionProvider systemSessionProvider = WCMCoreUtils.getSystemSessionProvider();
        Session systemSession = systemSessionProvider.getSession(node.getSession().getWorkspace().getName(), WCMCoreUtils.getRepository());
  
        Node parent = systemSession.itemExists(node.getPath()) ? ((Node)systemSession.getItem(node.getPath())).getParent() : node.getParent();
  
        if(parent.hasNode(NodetypeConstant.EXO_THUMBNAILS_FOLDER)) {
          Node thumnail = parent.getNode(NodetypeConstant.EXO_THUMBNAILS_FOLDER);
          if(thumnail.hasNode(node.getUUID())) thumnail.getNode(node.getUUID()).remove();
          parent.save();
        }
      }
      //Notify to update activity
      if(node.getPrimaryNodeType().getName().equals(NodetypeConstant.NT_FILE) && activityService.isBroadcastNTFileEvents(node) 
          && !activityService.isCreating(node)) {
        listenerService.broadcast(ActivityCommonService.FILE_EDIT_ACTIVITY, context, propertyName);
      }    
      return false;
    }
  
  }