/*******************************************************************************
    * jArduino: Arduino C++ Code Generation From Java
    * Copyright 2020 Tony Washer
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   ******************************************************************************/
  package net.sourceforge.jarduino.gui;
  
  import java.awt.Color;
  import java.awt.Component;
  import java.awt.Dialog.ModalityType;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Properties;
  import javax.swing.BorderFactory;
  import javax.swing.Box;
  import javax.swing.BoxLayout;
  import javax.swing.JButton;
  import javax.swing.JComponent;
  import javax.swing.JDialog;
  import javax.swing.JFrame;
  import javax.swing.JLabel;
  import javax.swing.JPanel;
  import javax.swing.border.Border;
  
  import net.sourceforge.jarduino.ArduinoException;
  
  /**
   * Swing About Box.
   */
  public class ArduinoAbout {
      /**
       * The Strut size.
       */
      private static final int STRUT_SIZE = 8;
  
      /**
       * The Inset size.
       */
      private static final int INSET_SIZE = 5;
  
      /**
       * APP Key.
       */
      private static final String PFX_APP = "App.";
  
      /**
       * Name Key.
       */
      private static final String KEY_NAME = PFX_APP + "name";
  
      /**
       * Version Key.
       */
      private static final String KEY_VERSION = PFX_APP + "version";
  
      /**
       * Revision Key.
       */
      private static final String KEY_REVISION = PFX_APP + "revision";
  
      /**
       * Copyright Key.
       */
      private static final String KEY_COPYRIGHT = PFX_APP + "copyright";
  
      /**
       * TimeStamp Key.
       */
      private static final String KEY_BUILTON = PFX_APP + "timeStamp";
      /**
       * The frame.
       */
      private final JFrame theFrame;
  
      /**
       * The panel.
       */
      private final JPanel thePanel;
  
      /**
       * The dialog.
       */
      private JDialog theDialog;
  
      /**
       * Constructor.
      * @param pFrame the frame
      */
     ArduinoAbout(final JFrame pFrame) throws ArduinoException {
         /* Store parameters */
         theFrame = pFrame;
 
         /* Build the OK button */
         final JButton myOKButton = new JButton();
         myOKButton.setText("OK");
         myOKButton.addActionListener(e -> closeDialog());
 
         /* Create the components */
         final Map<String, String> myMap = loadProperties();
         final JLabel myProduct = new JLabel(myMap.get(KEY_NAME));
         final JLabel myVersion = new JLabel("Version: " + myMap.get(KEY_VERSION));
         final JLabel myRevision = new JLabel("Revision: " + myMap.get(KEY_REVISION));
         final JLabel myBuild = new JLabel("BuiltOn: " + myMap.get(KEY_BUILTON));
         final JLabel myCopyright = new JLabel(myMap.get(KEY_COPYRIGHT));
         final JLabel myImages = new JLabel("Icons by mysitemyway.com");
 
         /* Layout the panel */
         thePanel = new JPanel();
         thePanel.setLayout(new BoxLayout(thePanel, BoxLayout.Y_AXIS));
 
         /* Add the components */
         thePanel.add(createContainer(myProduct));
         thePanel.add(createContainer(myCopyright));
         thePanel.add(Box.createVerticalStrut(STRUT_SIZE));
         thePanel.add(createContainer(myVersion));
         thePanel.add(createContainer(myRevision));
         thePanel.add(createContainer(myBuild));
         thePanel.add(Box.createVerticalStrut(STRUT_SIZE));
         thePanel.add(createContainer(myImages));
         thePanel.add(Box.createVerticalStrut(STRUT_SIZE));
         thePanel.add(createContainer(myOKButton));
     }
 
     /**
      * Create container panel.
      * @param pNode the panel
      * @return the container panel
      */
     private static JPanel createContainer(final JComponent pNode) {
         final JPanel myPanel = new JPanel();
         myPanel.setLayout(new BoxLayout(myPanel, BoxLayout.Y_AXIS));
         pNode.setAlignmentX(Component.CENTER_ALIGNMENT);
         myPanel.add(pNode);
         return myPanel;
     }
 
     /**
      * load properties.
      * @return the properties map.
      * @throws ArduinoException on error
      */
     private static Map<String, String> loadProperties() throws ArduinoException {
         /* Create the maps */
         final Map<String, String> myMap = new HashMap<>();
 
         /* Protect against exceptions */
         try (InputStream myInput = ArduinoAbout.class.getResourceAsStream("jArduino.properties")) {
             /* Load the properties */
             final Properties myProperties = new Properties();
             myProperties.load(myInput);
 
             /* Load property names into map */
             for (String myName : myProperties.stringPropertyNames()) {
                myMap.put(myName, myProperties.getProperty(myName));
             }
 
             /* Return the map */
             return myMap;
 
             /* Catch Exceptions */
         } catch (IOException e) {
             throw new ArduinoException("Failed to load properties", e);
         }
     }
 
     /**
      * Show the dialog.
      */
     public void showDialog() {
         /* If we have not made the dialog yet */
         if (theDialog == null) {
             makeDialog();
         }
 
         /* Show the dialog */
         theDialog.setVisible(true);
     }
 
     /**
      * Make the dialog.
      */
     private void makeDialog() {
         /* Create the dialog */
         theDialog = new JDialog(theFrame);
         theDialog.setUndecorated(true);
         theDialog.setModalityType(ModalityType.APPLICATION_MODAL);
 
         /* Create a border */
         final Border myPadded = BorderFactory.createEmptyBorder(INSET_SIZE, INSET_SIZE, INSET_SIZE, INSET_SIZE);
         final Border myLine = BorderFactory.createLineBorder(Color.BLACK, 2);
         thePanel.setBorder(BorderFactory.createCompoundBorder(myLine, myPadded));
 
         /* Attach the node to the dialog */
         theDialog.getContentPane().add(thePanel);
         theDialog.pack();
         theDialog.setLocationRelativeTo(theFrame);
     }
 
     /**
      * Close the dialog.
      */
     private void closeDialog() {
         theDialog.setVisible(false);
     }
 }