package com.devdaily.heidi;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import java.util.prefs.Preferences;
import javax.swing.*;
import javax.swing.event.*;
import sun.audio.*;
import ch.randelshofer.quaqua.QuaquaManager;
import com.apple.eawt.*;
import com.devdaily.logging.*;
import de.schlichtherle.util.ObfuscatedString;

/**
 * This class is shared freely under the Creative Commons Attribution 3.0 Unported License.
 * This means you can (a) use this class in commercial work,
 * and (b) modify this work, as long as (c) you attribute that this initial work
 * was created by Alvin Alexander of http://devdaily.com.
 * See http://creativecommons.org/licenses/by/3.0/ for more licensing information.
 * 
 * This is a version of my "Hyde" class with all of the code removed except
 * that which applies to the True License Java License Manager code.
 *
 * Note that it implements the "LicenseableClass", which is an interface I created
 * as I started thinking that I wanted to re-use my LicenseController class in
 * other Java/Swing applications.
 *
 * Note: With all the guts torn out of this class it will not compile, but
 *       hopefully it can help you see how to implement the True License code
 *       in your client application.
 *
 */
public class Hyde implements LicenseableClass
{
  private static final String DC_LICENSING_URL = "http://devdaily.com/hide-your-desktop";
  
  // "please license" dialog stuff
  private static final String LICENSE_DIALOG_TITLE = "devdaily.com - Hyde";
  private LicenseController licenseController;
  private LicenseReminderDialog licenseReminderDialog;
  private int numTimesUsed;
  private ApplyLicenseDialog applyLicenseDialog;
  
  private boolean licenseWasSuccessfullyApplied;
    
  // license stuff - uses the ObfuscatedString class from the True License library
  private static String keystoreFilename = new ObfuscatedString(new long[] {0x2531E65E362C302AL, 0xC6491960E7CAB920L, 0xC3BA520AAFF63939L}).toString(); /* => "dc.properties" */
  private static String alias = new ObfuscatedString(new long[] {0xDE2992A6F9C3C3A1L, 0xA08CA77A6F05791AL, 0x59E2378BA6F1BA96L}).toString(); /* => "dcpublickey" */
  private static String publicCertStorePassword = new ObfuscatedString(new long[] {0x43426A6C456239FAL, 0x98099DA1F000C879L, 0x4B8DCA266320210EL, 0xC13BE948052C1673L}).toString(); /* => "Z3N H4ND M00N 6590" */
  private static String cipherParamPassword = new ObfuscatedString(new long[] {0xCF899EE49F709ACAL, 0x954921EB531BF4BFL, 0x3D73B0811299826DL}).toString(); /* => "d0sxxb33rm3si" */

  // ftp license stuff - uses the ObfuscatedString class from the True License library
  private static String ftpAlias = new ObfuscatedString(new long[] {0xA4B0FBA523B3F63AL, 0x65D5A72B8657E00BL, 0x9E71F6D2395FF6FL}).toString(); /* => "dcftpkeyv1.x" */
  private static String ftpKeyPwd = new ObfuscatedString(new long[] {0xA2B75E0F17691BD4L, 0xEB9DB7C881078526L, 0x5ED8D7B254BC11BEL, 0x4422FAD5CD5DC734L}).toString(); /* => "J4V D3RB 88743 1411" */

  // prompt user for a license filename when they're ready to license
  private String licenseFilename;

  public static void main(String[] args)
  {
    new Hyde();
  }

  public Hyde()
  {
    // some 'init' work happened here, like hooking up to the java preferences ...
    
    // use my LicenseController class to verify and install a license
    licenseController = new LicenseController(this, logger);

    // do all the things to display the application's main frame here ...

    // the app main frame is displayed; now verify the license.
    // this makes a callback to handleVerifyLicenseFailedEvent() if the verification fails.
    // the handleVerifyLicenseFailedEvent() method in this class is called if the 
    // license verification process fails.
    licenseController.verifyLicense();
  }
  
  //----- implement the LicenseableClass interface -----//
  
  public String getApplicationName()
  {
    return APP_NAME;
  }

  public InputStream getPublicKeystoreAsInputStream() throws FileNotFoundException
  {
    final String resourceName = keystoreFilename;
    final InputStream in = getClass().getResourceAsStream(resourceName);
    if (in == null)
    {
      throw new FileNotFoundException(resourceName);
    }
    return in;
  }
  
  public String getAlias()
  {
    return alias;
  }

  public String getPublicKeystorePassword()
  {
    return publicCertStorePassword;
  }

  public String getCipherParamPassword()
  {
    return cipherParamPassword;
  }

  public Class getClassToLicense()
  {
    return this.getClass();
  }

  public String getFtpKeyPwd()
  {
    return ftpKeyPwd;
  }
  
  public String getFtpAlias()
  {
    return ftpAlias;
  }

  /**
   * This process is invoked by the system when the FTP license
   * period has expired. We need to show a slightly-modified version of
   * the ApplyLicenseDialog, and we need to shut down the application if
   * the user does not apply a valid license.
   */
  public void handleVerifyLicenseFailedEvent()
  {

    SwingUtilities.invokeLater(new Runnable()
    {
      public void run()
      {
        // create the dialog
        applyLicenseDialog = new ApplyLicenseDialog(desktopCurtainFrame);
        
        // need to add this to catch the event where the user presses the 
        // red close event on our dialog; in that case, we need to quit the app
        // if a license has not been successfully applied.
        // TODO this was another late patch, and this code can probably be consolidated
        //      with the Quit button code.
        applyLicenseDialog.addWindowListener(new WindowAdapter() 
        {
          public void windowClosed(WindowEvent e)
          {
            if (!licenseWasSuccessfullyApplied)
            {
              doQuitAction();
            }
          }
          public void windowClosing(WindowEvent e)
          {
            if (!licenseWasSuccessfullyApplied)
            {
              doQuitAction();
            }
          }
        });
        
        // change text to let user know the trial period is over
        applyLicenseDialog.getHeaderHelpText().setText("The free trial period has ended. Please install a license to continue.");
        
        // change the cancel button to say "quit"
        JButton forcedQuitButton = applyLicenseDialog.getCancelButton();
        forcedQuitButton.setText("Quit");
        forcedQuitButton.addActionListener(new ActionListener()
        {
          public void actionPerformed(ActionEvent e)
          {
            // shut down the app if the user selects this button at this time
            applyLicenseDialog.setVisible(false);
            doQuitAction();
          } 
        });

        // TODO this code is copied and pasted from the doInstallLicenseAction method
        DCJLinkLabel linkLabel = applyLicenseDialog.getNeedALicenseLabel();
        linkLabel.addMouseListener(new MouseAdapter()
        {
          public void mouseClicked(MouseEvent arg0)
          {
            // take the user to the proper url
            openUrlInBrowser(DC_LICENSING_URL);
          }
        });
        
        // add a listener to the Browser button
        JButton browseForLicenseFileButton = applyLicenseDialog.getBrowseButton();
        browseForLicenseFileButton.addActionListener(new BrowseForLicenseFileActionListener());
           
        // add a complicated listener to the Apply button
        JButton applyLicenseButton = applyLicenseDialog.getApplyLicenseButton();
        applyLicenseButton.addActionListener(new ApplyLicenseActionListener());
        
        // set the dialog visible, and leave it to the listeners to handle the action
        applyLicenseDialog.setResizable(false);
        applyLicenseDialog.pack();
        applyLicenseDialog.setModal(true);
        applyLicenseDialog.setLocationRelativeTo(desktopCurtainFrame);
        applyLicenseDialog.setVisible(true);  
        
      }
    });
  }
  
  private class ApplyLicenseActionListener implements ActionListener
  {
    /**
     * "Apply" button was clicked, so get the filename from the textfield and 
     * try to apply it as a license.
     */
    public void actionPerformed(ActionEvent e)
    {
      // get the filename
      licenseFilename = applyLicenseDialog.getFileTextField().getText();
      if (licenseFilename == null || licenseFilename.trim().equals(""))
      {
        JOptionPane.showMessageDialog(desktopCurtainFrame, 
            "Sorry, it does not look like a file was selected.",
            "No Filename",
            JOptionPane.INFORMATION_MESSAGE);
        return;
      }

      // TODO should probably do this in a thread and indeterminate dialog.
      // got a filename. try to install it with the license controller.
      boolean result = licenseController.installLicense(licenseFilename);
      
      // let the user know it went good or bad
      if (result)
      {

        // the license was applied successfully; show the user their information
        licenseWasSuccessfullyApplied = true;
        
        String message = "The devdaily.com Hyde license was installed -- thank you!\n\n"
          + "License holder information:\n\n  (" + licenseController.getLicenseContent().getHolder().getName() + ")\n"; 
        
        JTextArea textArea = new JTextArea(8, 31);
        textArea.setText(message);
        textArea.setEditable(false);
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        JScrollPane scrollPane = new JScrollPane(textArea);
        
        JOptionPane.showMessageDialog(desktopCurtainFrame,
            scrollPane,
            "License Installed",
            JOptionPane.INFORMATION_MESSAGE);
        // also close the apply dialog
        applyLicenseDialog.setVisible(false);
        applyLicenseDialog.dispose();
      }
      else
      {
        String message = "I'm sorry, there was a problem applying the license. "
          + "Please contact devdaily@gmail.com for assistance.\n\n"
          + "A system error message should be shown below here:\n\n"
          + licenseController.getErrorMessage();
        
        JTextArea textArea = new JTextArea(10, 35);
        textArea.setText(message);
        textArea.setEditable(false);
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        JScrollPane scrollPane = new JScrollPane(textArea);
        
        // display them in a message dialog
        JOptionPane.showMessageDialog(desktopCurtainFrame, 
            scrollPane,
            "Problem Installing License",
            JOptionPane.WARNING_MESSAGE);
      }

      // always need to do this after dialog calls until i find out how to do this right
      giveFocusBackToCurtain();

    } 
  }
  
  private class BrowseForLicenseFileActionListener implements ActionListener
  {
    public void actionPerformed(ActionEvent e)
    {
      // browser button was clicked, show a FileDialog to prompt for a filename
      String canonicalFilename = promptForFilenameWithFileDialog(desktopCurtainFrame, "Select Your License File", null, "*.lic");
      
      // if the name isn't null, put it in the textfield
      if (canonicalFilename != null)
      {
        applyLicenseDialog.getFileTextField().setText(canonicalFilename);
      }
    }
  }


  /**
   * Come here when the user selects the "Apply License" menu item.
   */
  public void doInstallLicenseAction()
  {
    // prompt the user for the license file
    applyLicenseDialog = new ApplyLicenseDialog(desktopCurtainFrame);

    // TODO do this much better; just added as a quick go-live fix
    // TODO modified the ApplyLicenseDialog manually to add a JLinkLabel ***
    DCJLinkLabel linkLabel = applyLicenseDialog.getNeedALicenseLabel();
    linkLabel.addMouseListener(new MouseAdapter()
    {
      public void mouseClicked(MouseEvent arg0)
      {
        // take the user to the proper url
        openUrlInBrowser(DC_LICENSING_URL);
      }
    });
    
    // add a listener to the Browser button
    JButton browseForLicenseFileButton = applyLicenseDialog.getBrowseButton();
    browseForLicenseFileButton.addActionListener(new BrowseForLicenseFileActionListener());
       
    // add a complicated listener to the Apply button
    JButton applyLicenseButton = applyLicenseDialog.getApplyLicenseButton();
    applyLicenseButton.addActionListener(new ApplyLicenseActionListener());

    // add a simple listener to the Cancel button
    JButton cancelButton = applyLicenseDialog.getCancelButton();
    cancelButton.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        applyLicenseDialog.setVisible(false);
      } 
    });
    
    // set the dialog visible, and leave it to the listeners to handle the action
    applyLicenseDialog.pack();
    applyLicenseDialog.setModal(true);
    applyLicenseDialog.setLocationRelativeTo(desktopCurtainFrame);
    applyLicenseDialog.setVisible(true);
  }

  private boolean productIsLicensed()
  {
    return licenseController.verifyLicense();
  }

  public boolean licenseWasSuccessfullyApplied()
  {
    return licenseWasSuccessfullyApplied;
  }

  public void setLicenseWasSuccessfullyApplied(boolean licenseWasSuccessfullyApplied)
  {
    this.licenseWasSuccessfullyApplied = licenseWasSuccessfullyApplied;
  }
  
}