/**
    * This file Copyright (c) 2012 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.ui.admincentral.thumbnail.view;
  
  import info.magnolia.context.MgnlContext;
  import info.magnolia.ui.model.imageprovider.definition.ImageProvider;
  import info.magnolia.ui.model.workbench.definition.WorkbenchDefinition;
  import info.magnolia.ui.vaadin.integration.jcr.JcrNodeAdapter;
  import info.magnolia.ui.vaadin.integration.jcr.container.AbstractJcrContainer;
  import info.magnolia.ui.vaadin.layout.LazyThumbnailLayout;
  import info.magnolia.ui.vaadin.layout.LazyThumbnailLayout.ThumbnailDblClickListener;
  import info.magnolia.ui.vaadin.layout.LazyThumbnailLayout.ThumbnailSelectionListener;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.ui.Component;
  import com.vaadin.ui.CssLayout;
  
  
  /**
   * LazyThumbnailViewImpl.
   */
  public class LazyThumbnailViewImpl implements ThumbnailView {
  
      private static final Logger log = LoggerFactory.getLogger(LazyThumbnailViewImpl.class);
  
      private ThumbnailContainer container;
  
      private final WorkbenchDefinition workbenchDefinition;
  
      private Listener listener;
  
      private final LazyThumbnailLayout layout;
  
      private final CssLayout margin = new CssLayout();
  
      private final ImageProvider imageProvider;
  
      public LazyThumbnailViewImpl(final WorkbenchDefinition definition, final ThumbnailContainer container) {
          this.workbenchDefinition = definition;
          this.imageProvider = container.getImageProvider();
          this.layout = new LazyThumbnailLayout();
          this.container = container;
          layout.setSizeFull();
          layout.addStyleName("mgnl-workbench-thumbnail-view");
  
          layout.addThumbnailSelectionListener(new ThumbnailSelectionListener() {
  
              @Override
              public void onThumbnailSelected(final String thumbnailId) {
                  JcrNodeAdapter node = getThumbnailNodeAdapterByIdentifier(thumbnailId);
                  listener.onItemSelection(node);
              }
          });
  
          layout.addDoubleClickListener(new ThumbnailDblClickListener() {
  
              @Override
              public void onThumbnailDblClicked(final String thumbnailId) {
                  JcrNodeAdapter node = getThumbnailNodeAdapterByIdentifier(thumbnailId);
                  listener.onDoubleClick(node);
              }
          });
         margin.setSizeFull();
         margin.setStyleName("mgnl-content-view");
         margin.addComponent(layout);
     }
 
     @Override
     public void setListener(Listener listener) {
         this.listener = listener;
     }
 
     @Override
     public void select(String path) {
         // do something?
     }
 
     @Override
     public final void refresh() {
         this.container = new ThumbnailContainer(workbenchDefinition, imageProvider);
         container.setWorkspaceName(workbenchDefinition.getWorkspace());
         container.setThumbnailHeight(73);
         container.setThumbnailWidth(73);
         layout.setContainerDataSource(container);
         layout.setThumbnailSize(73, 73);
     }
 
     @Override
     public AbstractJcrContainer getContainer() {
         throw new UnsupportedOperationException();
     }
 
     @Override
     public Component asVaadinComponent() {
         return margin;
     }
 
     private String prepareJcrSQL2Query() {
         final String itemType = workbenchDefinition.getMainItemType().getItemType();
         return "select * from [" + itemType + "] as t order by name(t)";
 
     }
 
     private JcrNodeAdapter getThumbnailNodeAdapterByIdentifier(final String thumbnailId) {
         try {
             Session session = MgnlContext.getJCRSession(workbenchDefinition.getWorkspace());
             final Node imageNode = session.getNodeByIdentifier(thumbnailId);
             return new JcrNodeAdapter(imageNode);
         } catch (RepositoryException e) {
             log.error(e.getMessage());
         }
         return null;
     }
 
     @Override
     public ViewType getViewType() {
         return ViewType.THUMBNAIL;
     }
 }