/**
    * This file Copyright (c) 2019 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.contentapp;
  
  import info.magnolia.objectfactory.ComponentProvider;
  import info.magnolia.ui.contentapp.browser.ThumbnailPresenter;
  import info.magnolia.ui.contentapp.observation.JcrDataSourceObservation;
  import info.magnolia.ui.filter.DataFilter;
  
  import javax.inject.Inject;
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.data.provider.DataProvider;
  
  /**
   * JCR-specific implementation of {@link ThumbnailPresenter}.
   */
  public class JcrThumbnailPresenter implements ThumbnailPresenter<Node> {
  
      private static final Logger log = LoggerFactory.getLogger(JcrThumbnailPresenter.class);
  
      private JcrDataProvider dataProvider;
  
      @Inject
      public JcrThumbnailPresenter(ComponentProvider componentProvider, JcrDataSourceObservation jcrDataSourceObservation) {
          this.dataProvider = componentProvider.newInstance(JcrDataProvider.class);
          jcrDataSourceObservation.register(dataProvider::refreshAll);
      }
  
      @Override
      public DataProvider<Node, DataFilter> dataProvider() {
          return dataProvider;
      }
  
      @Override
      public String getCaption(Node node) {
          try {
              Node thumbnailNode = node.getNode("thumbnail");
              String fileName = thumbnailNode.getProperty("fileName").getString();
              String extension = thumbnailNode.getProperty("extension").getString();
              return String.format("%s.%s", fileName, extension);
          } catch (RepositoryException e) {
              log.debug("The caption for the thumbnail '{}' couldn't be built, returning the raw node name instead.", node, e);
          }
  
          try {
              return node.getName();
          } catch (RepositoryException e) {
              log.debug("The node name for '{}' couldn't be fetched either, returning an empty string.", node, e);
          }
  
          return "";
      }
  }