/***************************************************************************
 * Copyright (C) 2003-2009 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 *
 **************************************************************************/
package org.exoplatform.ecm.webui.presentation.removecomment;

import java.util.Map;

import javax.jcr.Node;
import javax.jcr.version.VersionException;

import org.exoplatform.ecm.utils.text.Text;
import org.exoplatform.ecm.webui.presentation.AbstractActionComponent;
import org.exoplatform.ecm.webui.presentation.action.UIPresentationEventListener;
import org.exoplatform.ecm.webui.utils.JCRExceptionManager;
import org.exoplatform.ecm.webui.utils.Utils;
import org.exoplatform.services.cms.comments.CommentsService;
import org.exoplatform.services.cms.link.NodeFinder;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.web.application.ApplicationMessage;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.config.annotation.EventConfig;
import org.exoplatform.webui.core.UIApplication;

/**
 * Created by The eXo Platform SARL
 * Author : Hoang Van Hung
 *          hunghvit@gmail.com
 * Sep 17, 2009
 */

@ComponentConfig(events = {
    @EventConfig(listeners = RemoveCommentComponent.RemoveCommentActionListener.class,
                 confirm = "RemoveCommentComponent.msg.confirm-deletecomment") })
public class RemoveCommentComponent extends AbstractActionComponent {

  private static final Log LOG = ExoLogger.getLogger(RemoveCommentComponent.class.getName());

  /**
   * Overide method UIComponent.loadConfirmMesssage() to get resource bundle in jar file
   */
  protected String loadConfirmMesssage(org.exoplatform.webui.config.Event event,
                                       WebuiRequestContext context,
                                       String beanId) {
    String confirmKey  = event.getConfirm();
    if(confirmKey.length() < 1) return confirmKey;
    try {
      String confirm = Utils.getResourceBundle(Utils.LOCALE_WEBUI_DMS, confirmKey, getClass().getClassLoader());
      return confirm.replaceAll("\\{0\\}", beanId);
    } catch (Exception e) {
      return confirmKey;
    }
  }

  public static void doDelete(Map<String, Object> variables) throws Exception {
    AbstractActionComponent uicomponent = (AbstractActionComponent)variables.get(UICOMPONENT);
    UIApplication uiApp = uicomponent.getAncestorOfType(UIApplication.class);
    NodeFinder nodefinder = uicomponent.getApplicationComponent(NodeFinder.class);
    String wsname = String.valueOf(variables.get(Utils.WORKSPACE_PARAM));
    String nodepath = String.valueOf(variables.get(OBJECTID));
    WebuiRequestContext requestcontext = (WebuiRequestContext)variables.get(Utils.REQUESTCONTEXT);
    try {
      Node commentNode = (Node) nodefinder.getItem(wsname, 
          Text.escapeIllegalJcrChars(nodepath));
      CommentsService commentService = uicomponent.getApplicationComponent(CommentsService.class);
      commentService.deleteComment(commentNode);
      uicomponent.updateAjax(requestcontext);
    } catch(VersionException e) {
      if (LOG.isErrorEnabled()) {
        LOG.error("Version exception");
      }
      Object[] args = { nodepath } ;
      uiApp.addMessage(new ApplicationMessage("UIPopupMenu.msg.can-not-delete-version", args,
          ApplicationMessage.WARNING));      
    } catch (Exception e) {
      if (LOG.isErrorEnabled()) {
        LOG.error("an unexpected error occurs while removing the node", e);
      }
      JCRExceptionManager.process(uiApp, e);      
    }
  }

  public static class RemoveCommentActionListener extends UIPresentationEventListener<RemoveCommentComponent> {
    protected void executeAction(Map<String, Object> variables) throws Exception {
      RemoveCommentComponent.doDelete(variables);
    }
  }
}
