/*
    * DavMail POP/IMAP/SMTP/CalDav/LDAP Exchange Gateway
    * Copyright (C) 2011  Mickael Guessant
    *
    * 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 2
    * 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, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   */
  package davmail.ui;
  
  import davmail.BundleMessage;
  import davmail.ui.tray.DavGatewayTray;
  
  import javax.swing.*;
  import java.awt.*;
  
  /**
   * Let user select a client certificate
   */
  public class SelectCertificateDialog extends JDialog {
      protected final JList<String> aliasListBox;
      protected final String[] aliases;
      protected String selectedAlias;
  
      /**
       * Gets user selected alias.
       *
       * @return user selected alias
       */
      public String getSelectedAlias() {
          return this.selectedAlias;
      }
  
      /**
       * Select a client certificate
       *
       * @param aliases An array of certificate aliases for the user to pick from
       */
      public SelectCertificateDialog(String[] aliases, String[] descriptions) {
          setAlwaysOnTop(true);
          this.aliases = aliases;
  
          setTitle(BundleMessage.format("UI_CERTIFICATE_ALIAS_PROMPT"));
          try {
              setIconImages(DavGatewayTray.getFrameIcons());
          } catch (NoSuchMethodError error) {
              DavGatewayTray.debug(new BundleMessage("LOG_UNABLE_TO_SET_ICON_IMAGE"));
          }
  
          JPanel questionPanel = new JPanel();
          questionPanel.setLayout(new BoxLayout(questionPanel, BoxLayout.Y_AXIS));
          JLabel imageLabel = new JLabel();
          imageLabel.setIcon(UIManager.getIcon("OptionPane.questionIcon"));
          imageLabel.setText(BundleMessage.format("UI_CERTIFICATE_ALIAS_PROMPT"));
          questionPanel.add(imageLabel);
  
          aliasListBox = new JList<>(descriptions);
          aliasListBox.setMaximumSize(aliasListBox.getPreferredSize());
  
          JPanel aliasPanel = new JPanel();
          aliasPanel.setLayout(new BoxLayout(aliasPanel, BoxLayout.Y_AXIS));
          aliasPanel.add(aliasListBox);
  
          add(questionPanel, BorderLayout.NORTH);
          add(aliasPanel, BorderLayout.CENTER);
          add(getButtonPanel(), BorderLayout.SOUTH);
          setModal(true);
  
          pack();
          // center frame
          setLocation(getToolkit().getScreenSize().width / 2 -
                  getSize().width / 2,
                  getToolkit().getScreenSize().height / 2 -
                          getSize().height / 2);
  	setAlwaysOnTop(true);
          setVisible(true);
      }
  
      protected JPanel getButtonPanel() {
          JPanel buttonPanel = new JPanel();
          JButton okButton = new JButton(BundleMessage.format("UI_BUTTON_OK"));
          JButton cancelButton = new JButton(BundleMessage.format("UI_BUTTON_CANCEL"));
          okButton.addActionListener(evt -> {
              selectedAlias = aliases[aliasListBox.getSelectedIndex()];
              setVisible(false);
          });
          cancelButton.addActionListener(evt -> {
              selectedAlias = null;
              setVisible(false);
         });
 
         buttonPanel.add(okButton);
         buttonPanel.add(cancelButton);
         return buttonPanel;
     }
 
 }