package org.opentrafficsim.swing.gui;
   
   import java.awt.Color;
   import java.awt.Dimension;
   import java.awt.event.ActionEvent;
   import java.awt.event.ActionListener;
   import java.awt.event.FocusEvent;
   import java.awt.event.FocusListener;
   import java.util.Optional;
  
  import javax.swing.Box;
  import javax.swing.BoxLayout;
  import javax.swing.JCheckBox;
  import javax.swing.JComboBox;
  import javax.swing.JLabel;
  import javax.swing.JPanel;
  import javax.swing.JTextField;
  import javax.swing.event.DocumentEvent;
  import javax.swing.event.DocumentListener;
  
  import org.djutils.base.Identifiable;
  import org.opentrafficsim.core.gtu.Gtu;
  import org.opentrafficsim.core.network.Link;
  import org.opentrafficsim.core.network.Network;
  import org.opentrafficsim.core.network.Node;
  
  import nl.tudelft.simulation.dsol.animation.Locatable;
  
  /**
   * The OTS search panel.
   * <p>
   * Copyright (c) 2020-2024 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="https://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
   * </p>
   * @author <a href="https://github.com/averbraeck">Alexander Verbraeck</a>
   * @author <a href="https://github.com/peter-knoppers">Peter Knoppers</a>
   */
  public class OtsSearchPanel extends JPanel implements ActionListener, FocusListener, DocumentListener
  {
      /** ... */
      private static final long serialVersionUID = 20200127L;
  
      /** The animation panel. */
      private final OtsAnimationPanel otsAnimationPanel;
  
      /** The type-of-object-to-search-for selector. */
      private final JComboBox<ObjectKind<?>> typeToSearch;
  
      /** Id of the object to search for. */
      private final JTextField idTextField;
  
      /** Track object check box. */
      private final JCheckBox trackObject;
  
      /**
       * Construct a new OtsSearchPanel.
       * @param otsAnimationPanel the animation panel
       */
      public OtsSearchPanel(final OtsAnimationPanel otsAnimationPanel)
      {
          this.otsAnimationPanel = otsAnimationPanel;
          this.setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
          this.add(new JLabel(OtsControlPanel.loadIcon("/View.png").get()));
          this.add(Box.createHorizontalStrut(5));
          ObjectKind<?>[] objectKinds = new ObjectKind[] {new ObjectKind<Gtu>("GTU")
          {
              @Override
              Optional<Gtu> searchNetwork(final Network network, final String id)
              {
                  return network.getGTU(id);
              }
          }, new ObjectKind<Node>("Node")
          {
              @Override
              Optional<Node> searchNetwork(final Network network, final String id)
              {
                  return network.getNode(id);
              }
          }, new ObjectKind<Link>("Link")
          {
              @Override
              Optional<Link> searchNetwork(final Network network, final String id)
              {
                  return network.getLink(id);
              }
          }};
          this.typeToSearch = new JComboBox<ObjectKind<?>>(objectKinds);
          this.typeToSearch.setPreferredSize(new Dimension(55, 25));
          this.add(this.typeToSearch);
  
          /** Text field with appearance control. */
          this.idTextField = new AppearanceControlTextField();
          this.idTextField.setPreferredSize(new Dimension(100, 25));
          this.add(this.idTextField);
          this.trackObject = new JCheckBox("Track");
          this.add(this.trackObject);
          this.trackObject.setActionCommand("Tracking status changed");
          this.idTextField.setActionCommand("Id changed");
          this.typeToSearch.setActionCommand("Type changed");
         this.trackObject.addActionListener(this);
         this.idTextField.addActionListener(this);
         this.typeToSearch.addActionListener(this);
         this.idTextField.addFocusListener(this);
         this.idTextField.getDocument().addDocumentListener(this);
         new GhostText(this.idTextField, "Id...").setGhostColor(Color.GRAY);
     }
 
     /**
      * Update all values at once.
      * @param objectKey key of the object type to search
      * @param id id of object to search
      * @param track if true; track continuously; if false; center on it, but do not track
      */
     public void selectAndTrackObject(final String objectKey, final String id, final boolean track)
     {
         for (int index = this.typeToSearch.getItemCount(); --index >= 0;)
         {
             if (this.typeToSearch.getItemAt(index).getKey().equals(objectKey))
             {
                 this.typeToSearch.setSelectedIndex(index);
             }
         }
         this.trackObject.setSelected(track);
         this.idTextField.setText(id);
         actionPerformed(null);
     }
 
     @Override
     public void actionPerformed(final ActionEvent e)
     {
         this.otsAnimationPanel.setAutoPan(this.idTextField.getText(), (ObjectKind<?>) this.typeToSearch.getSelectedItem(),
                 this.trackObject.isSelected());
     }
 
     @Override
     public final void focusGained(final FocusEvent e)
     {
         actionPerformed(null);
     }
 
     @Override
     public final void focusLost(final FocusEvent e)
     {
         // Do nothing
     }
 
     @Override
     public final void insertUpdate(final DocumentEvent e)
     {
         actionPerformed(null);
     }
 
     @Override
     public final void removeUpdate(final DocumentEvent e)
     {
         actionPerformed(null);
     }
 
     @Override
     public final void changedUpdate(final DocumentEvent e)
     {
         actionPerformed(null);
     }
 
     /**
      * Entries in the typeToSearch JComboBox of the OTS search panel.
      * @param <T> Type of object identified by key
      */
     abstract static class ObjectKind<T extends Locatable & Identifiable>
     {
         /** The key of this ObjectKind. */
         private final String key;
 
         /**
          * Construct a new ObjectKind (entry in the combo box).
          * @param key the key of the new ObjectKind
          */
         ObjectKind(final String key)
         {
             this.key = key;
         }
 
         /**
          * Retrieve the key.
          * @return the key
          */
         public Object getKey()
         {
             return this.key;
         }
 
         /**
          * Lookup an object of type T in an OTS network.
          * @param network the OTS network
          * @param id id of the object to return
          * @return the object in the network of the correct type and matching id, empty if no matching object was found.
          */
         abstract Optional<T> searchNetwork(Network network, String id);
 
         /**
          * Produce the text that will appear in the combo box. This method should be overridden to implement localization.
          */
         @Override
         public String toString()
         {
             return this.key;
         }
     }
 }