/**
    * This file Copyright (c) 2018 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.browser;
  
  import info.magnolia.objectfactory.ComponentProvider;
  import info.magnolia.ui.availability.AvailabilityChecker;
  import info.magnolia.ui.contentapp.Datasource;
  import info.magnolia.ui.contentapp.FilterableHierarchicalDataProvider;
  import info.magnolia.ui.contentapp.configuration.GridViewDefinition;
  import info.magnolia.ui.observation.DatasourceObservation;
  
  import java.util.stream.Stream;
  
  import javax.inject.Inject;
  
  import com.vaadin.ui.TreeGrid;
  
  /**
   * Handles some datasource related presentation logic on behalf of {@link TreeView}.
   *
   * @param <T>
   *     data type tree view is working with
   */
  public abstract class TreePresenter<T> extends GridViewPresenter<T> {
  
      @Inject
      public TreePresenter(
              GridViewDefinition<T> definition,
              ComponentProvider componentProvider,
              AvailabilityChecker availabilityChecker,
              Datasource<T> datasource,
              DatasourceObservation datasourceObservation
      ) {
          super(definition, componentProvider, availabilityChecker, datasource, datasourceObservation);
      }
  
      public TreePresenter(
              GridViewDefinition<T> definition,
              ComponentProvider componentProvider,
              AvailabilityChecker availabilityChecker,
              Datasource<T> datasource
      ) {
          super(definition, componentProvider, availabilityChecker, datasource, componentProvider.getComponent(DatasourceObservation.class));
      }
  
      @Override
      protected TreeGrid<T> createGrid() {
          return new MagnoliaTreeGrid<>(
                  propertySet(),
                  this::isItemAvailable,
                  this::isPropertyEditable,
                  datasource
          );
      }
  
      public TreeGrid<T> grid() {
          return (TreeGrid<T>) super.grid();
      }
  
      public abstract Stream<T> getParents(T item);
  
      @Override
      protected FilterableHierarchicalDataProvider<T> dataProvider() {
          //noinspection unchecked
          return (FilterableHierarchicalDataProvider<T>) super.dataProvider();
      }
  
      @Override
     public abstract FilterableHierarchicalDataProvider<T> createDataProvider();
 }