/**
    * 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.ui.contentapp.configuration.ContentViewDefinition;
  import info.magnolia.ui.contentapp.configuration.ContentViewsDefinition;
  import info.magnolia.ui.contentapp.configuration.WorkbenchDefinition;
  import info.magnolia.ui.framework.UiFrameworkView;
  import info.magnolia.ui.framework.ViewDefinition;
  import info.magnolia.ui.framework.ContextProperty;
  import info.magnolia.ui.framework.ViewContext;
  
  import java.util.function.Consumer;
  
  import javax.inject.Inject;
  
  import com.vaadin.shared.ui.MarginInfo;
  import com.vaadin.ui.HorizontalLayout;
  import com.vaadin.ui.Label;
  import com.vaadin.ui.VerticalLayout;
  
  /**
   * Workbench view.
   * @param <T> item type.
   */
  public class Workbench<T> extends VerticalLayout implements UiFrameworkView {
  
      private final WorkbenchContext workbenchContext;
      private final Label title;
  
      @Inject
      public Workbench(WorkbenchDefinition<T> definition) {
  
          this.workbenchContext = bindContext(WorkbenchContext.class);
  
          final String defaultDisplayedContentView = definition.getContentViews()
                  .stream()
                  .filter(ContentViewDefinition::isActive)
                  .map(ContentViewDefinition::getName)
                  .findFirst()
                  //TODO: (notsureif)
                  .orElse(definition.getContentViews().iterator().next().getName());
  
          this.workbenchContext
                  .displayedContentViewId()
                  .set(defaultDisplayedContentView);
  
          final ContentViews<T> contentViews = getContentViews(definition);
  
          HorizontalLayout contentViewLayout = new HorizontalLayout();
          contentViewLayout.setSizeFull();
          title = new Label();
          title.setStyleName("heading-1");
          contentViewLayout.addComponent(title);
          contentViewLayout.setExpandRatio(title, 1f);
          contentViewLayout.addComponent(contentViews);
          contentViewLayout.setExpandRatio(contentViews, 0f);
  
          setSizeFull();
          addStyleName("workbench");
          setMargin(false);
          addComponent(contentViews);
      }
  
      protected ContentViews<T> getContentViews(WorkbenchDefinition<T> definition) {
          return getViewProvider()
                  .create(ContentViewsDefinition.of(definition.getContentViews()));
      }
 
     public void setTitle(String title) {
         this.title.setValue(title);
     }
 
     public void onContentViewTypeChange(Consumer<String> handler) {
         workbenchContext
                 .displayedContentViewId()
                 .observeNullable(handler::accept);
     }
 
     /**
      * {@link ViewContext} specific to a workbench.
      */
     public interface WorkbenchContext extends ViewContext {
         ContextProperty<String> displayedContentViewId();
     }
 }