package fr.ifremer.tutti.ui.swing.content.protocol.zones;
   
   /*
    * #%L
    * Tutti :: UI
    * $Id:$
    * $HeadURL:$
    * %%
    * Copyright (C) 2012 - 2016 Ifremer
   * %%
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU 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/gpl-3.0.html>.
   * #L%
   */
  
  import fr.ifremer.tutti.ui.swing.content.protocol.EditProtocolUIModel;
  import fr.ifremer.tutti.ui.swing.content.protocol.zones.tree.node.StrataNode;
  import fr.ifremer.tutti.ui.swing.content.protocol.zones.tree.node.SubStrataNode;
  import fr.ifremer.tutti.ui.swing.content.protocol.zones.tree.node.ZoneNode;
  import fr.ifremer.tutti.ui.swing.util.AbstractTuttiUIHandler;
  import jaxx.runtime.SwingUtil;
  import jaxx.runtime.validator.swing.SwingValidator;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  import javax.swing.JComponent;
  import javax.swing.JPopupMenu;
  import javax.swing.JTree;
  import javax.swing.SwingUtilities;
  import javax.swing.event.TreeSelectionListener;
  import javax.swing.tree.TreePath;
  import java.awt.Point;
  import java.awt.event.KeyEvent;
  import java.awt.event.MouseEvent;
  
  /**
   * @author Kevin Morin (Code Lutin)
   * @since 4.5
   */
  public class ZoneEditorUIHandler extends AbstractTuttiUIHandler<EditProtocolUIModel, ZoneEditorUI> {
  
      /** Logger. */
      private static final Log log = LogFactory.getLog(ZoneEditorUIHandler.class);
  
      @Override
      public void afterInit(ZoneEditorUI zoneEditorUI) {
  
          initUI(zoneEditorUI);
  
          // init trees
  
          JTree availableStratasTree = ui.getAvailableStratasTree();
          SwingUtil.addExpandOnClickListener(availableStratasTree);
  
          JTree zonesTree = ui.getZonesTree();
          SwingUtil.addExpandOnClickListener(zonesTree);
  
          zonesTree.addTreeSelectionListener(event -> {
  
              TreePath[] selectedPaths = zonesTree.getSelectionPaths();
              boolean allStrataNode = true;
  
              if (selectedPaths != null) {
  
                  if (selectedPaths.length == 1) {
                      boolean zoneSelected = event.getPath().getLastPathComponent() instanceof ZoneNode;
                      getUI().getDeleteZoneMenuItem().setEnabled(zoneSelected);
                      getUI().getRenameZoneMenuItem().setEnabled(zoneSelected);
                  }
  
                  for (TreePath selectedPath : selectedPaths) {
                      Object lastPathComponent = selectedPath.getLastPathComponent();
                      if (!(lastPathComponent instanceof StrataNode
                              || lastPathComponent instanceof SubStrataNode)) {
                          allStrataNode = false;
                          break;
                      }
                  }
  
              }
  
              getUI().getRemoveButton().setEnabled(selectedPaths != null && allStrataNode);
  
          });
  
          TreeSelectionListener enableAddStrataListener = evt -> {
  
              boolean addButtonEnabled = zonesTree.getSelectionCount() == 1
                     && zonesTree.getSelectionPath().getLastPathComponent() instanceof ZoneNode
                     && availableStratasTree.getSelectionCount() >= 1;
             getUI().getAddButton().setEnabled(addButtonEnabled);
 
         };
         zonesTree.addTreeSelectionListener(enableAddStrataListener);
         availableStratasTree.addTreeSelectionListener(enableAddStrataListener);
 
     }
 
     @Override
     public SwingValidator<EditProtocolUIModel> getValidator() {
         return null;
     }
 
     @Override
     protected JComponent getComponentToFocus() {
         return ui.getZonesTree();
     }
 
     @Override
     public void onCloseUI() {
 //        getModel().getZone().forEach(zone -> ((ZoneUIModel) zone).removePropertyChangeListener(ZoneUIModel.PROPERTY_STRATA,
 //                                                                                stratasChangeListener));
     }
 
     public void onKeyPressedOnZones(KeyEvent e) {
 
         if (e.getKeyCode() == KeyEvent.VK_ENTER && getUI().getRemoveButton().isEnabled()) {
             getContext().getActionEngine().runAction(getUI().getRemoveButton());
         }
     }
 
     public void onKeyPressedOnAvailableStratas(KeyEvent e) {
 
         if (e.getKeyCode() == KeyEvent.VK_ENTER && getUI().getAddButton().isEnabled()) {
             getContext().getActionEngine().runAction(getUI().getAddButton());
         }
     }
 
 
     public void onMouseClickedPressedOnZones(MouseEvent e, JPopupMenu popup) {
 
         if (SwingUtilities.isRightMouseButton(e)) {
 
             // get the coordinates of the mouse click
             Point p = e.getPoint();
 
             JTree source = (JTree) e.getSource();
 
             // get the row index at this point
             int rowIndex = source.getRowForLocation(p.x, p.y);
 
             if (log.isDebugEnabled()) {
                 log.debug("At point [" + p + "] found Row " + rowIndex);
             }
 
             source.setSelectionRow(rowIndex);
 
             // on right click show popup
             popup.show(source, e.getX(), e.getY());
 
         } else if (e.getClickCount() == 2 && getUI().getRemoveButton().isEnabled()) {
             getContext().getActionEngine().runAction(getUI().getRemoveButton());
         }
     }
 
     public void onMouseClickedOnAvailableStratas(MouseEvent mouseEvent) {
 
         if (mouseEvent.getClickCount() == 2 && getUI().getAddButton().isEnabled()) {
             getContext().getActionEngine().runAction(getUI().getAddButton());
         }
     }
 
 }