/*
    * 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.component.explorer.control.action;
  
  import java.util.Arrays;
  import java.util.Enumeration;
  import java.util.Hashtable;
  import java.util.List;
  
  import javax.jcr.Node;
  
  import org.exoplatform.ecm.webui.component.explorer.UIJCRExplorer;
  import org.exoplatform.ecm.webui.component.explorer.control.UIActionBar;
  import org.exoplatform.ecm.webui.component.explorer.control.filter.HasMetadataTemplatesFilter;
  import org.exoplatform.ecm.webui.component.explorer.control.listener.UIActionBarActionListener;
  import org.exoplatform.ecm.webui.component.explorer.popup.info.UIViewMetadataContainer;
  import org.exoplatform.ecm.webui.component.explorer.popup.info.UIViewMetadataManager;
  import org.exoplatform.ecm.webui.component.explorer.popup.info.UIViewMetadataTemplate;
  import org.exoplatform.services.cms.impl.Utils;
  import org.exoplatform.services.wcm.utils.WCMCoreUtils;
  import org.exoplatform.webui.config.annotation.ComponentConfig;
  import org.exoplatform.webui.config.annotation.EventConfig;
  import org.exoplatform.webui.core.UIComponent;
  import org.exoplatform.webui.core.UIPopupContainer;
  import org.exoplatform.webui.event.Event;
  import org.exoplatform.webui.ext.filter.UIExtensionFilter;
  import org.exoplatform.webui.ext.filter.UIExtensionFilters;
  
  /**
   * Created by The eXo Platform SAS
   * Author : eXoPlatform
   *          nicolas.filotto@exoplatform.com
   * 6 mai 2009
   */
  @ComponentConfig(
       events = {
         @EventConfig(listeners = ViewMetadatasActionComponent.ViewMetadatasActionListener.class)
       }
   )
  public class ViewMetadatasActionComponent extends UIComponent {
  
    private static final List<UIExtensionFilter> FILTERS = Arrays.asList(new UIExtensionFilter[]{new HasMetadataTemplatesFilter()});
  
    @UIExtensionFilters
    public List<UIExtensionFilter> getFilters() {
      return FILTERS;
    }
  
    public static class ViewMetadatasActionListener extends UIActionBarActionListener<ViewMetadatasActionComponent> {
      public void processEvent(Event<ViewMetadatasActionComponent> event) throws Exception {
        UIActionBar uiActionBar = event.getSource().getAncestorOfType(UIActionBar.class);
        UIJCRExplorer uiJCRExplorer = uiActionBar.getAncestorOfType(UIJCRExplorer.class);
        Node currentNode = uiJCRExplorer.getCurrentNode() ;
        
        
        Hashtable<String, String> metaDataTemp = WCMCoreUtils.getMetadataTemplates(currentNode);
        UIPopupContainer UIPopupContainer = uiJCRExplorer.getChild(UIPopupContainer.class);
        UIPopupContainer.activate(UIViewMetadataManager.class, 700);
        UIViewMetadataManager uiMetadataManager =
          UIPopupContainer.findFirstComponentOfType(UIViewMetadataManager.class);
        UIViewMetadataContainer uiMetadataContainer = uiMetadataManager.getChild(UIViewMetadataContainer.class);
        int i = 0;
        Enumeration<String> enu = metaDataTemp.keys();
        while (enu.hasMoreElements()) {
          String key = (String) enu.nextElement();
          String template = metaDataTemp.get(key);
          if(template != null && template.length() > 0) {
            UIViewMetadataTemplate uiMetaView =
              uiMetadataContainer.createUIComponent(UIViewMetadataTemplate.class, null, Utils.cleanString(key)) ;
            uiMetaView.setTemplateType(key) ;
            uiMetadataContainer.addChild(uiMetaView) ;
            uiMetaView.setRendered(true);
            i++ ;
          }
        }
        uiMetadataContainer.setSelectedTab(1);
        uiMetadataContainer.setHasMoreOneMetaData(i > 1);
        event.getRequestContext().addUIComponentToUpdateByAjax(UIPopupContainer);
      }
    }
  }