package com.liquidatom.derbyscore.ui;

 import com.liquidatom.derbyscore.domain.Clock;

 import com.liquidatom.derbyscore.domain.Duration;

 import java.awt.EventQueue;

 import java.awt.event.KeyEvent;

 import java.awt.event.KeyListener;

 import java.util.concurrent.TimeUnit;

 import java.util.regex.Pattern;

 import javax.annotation.concurrent.Immutable;

 import javax.annotation.concurrent.ThreadSafe;

 import javax.swing.JTextField;

 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 /**

  *

  * @author Russell Francis (russ@metro-six.com)

  */

 @Immutable

 @ThreadSafe

 public class TimeTextFieldKeyListener implements KeyListener {

     static private final Logger log = LoggerFactory.getLogger(TimeTextFieldKeyListener.class);

     static private final Pattern colonPattern = Pattern.compile(":");

     final private JTextField timeTextField;

     final private Clock clock;

     public TimeTextFieldKeyListener(final JTextField timeTextField, final Clock clock) {

         super();

         if (timeTextField == null) {

             throw new NullPointerException("The parameter timeTextField must be non-null.");

         }

         if (clock == null) {

             throw new NullPointerException("The parameter clock must be non-null.");

         }

         this.timeTextField = timeTextField;

         this.clock = clock;

     }

     public void keyReleased(final KeyEvent e) {

     }

     public void keyTyped(final KeyEvent e) {

     }

     public void keyPressed(final KeyEvent e) {

         assertDispatchThread();

         if (KeyEvent.VK_ENTER == e.getKeyCode()) {

             final String text = timeTextField.getText();

             final String[] parts = colonPattern.split(text);

             if (parts != null && parts.length == 2) {

                 try {

                     int minutes = Integer.parseInt(parts[0]);

                     int seconds = Integer.parseInt(parts[1]);

 //                    clock.setTimeRemaining((((minutes * 60) + seconds) * 1000) + 999L);

                     clock.reset(new Duration(((minutes * 60) + seconds) * 1000, TimeUnit.MILLISECONDS));

                 }

                 catch (NumberFormatException ex) {

                     if (log.isWarnEnabled()) {

                         log.warn("Unable to convert '" + parts[0] + "' or '" + parts[1] + "' into integers.");

                     }

                 }

             }

             timeTextField.setText(clock.getDisplayTime());

         }

     }

     protected void assertDispatchThread() {

         if (!EventQueue.isDispatchThread()) {

             throw new IllegalStateException("This method must be invoked from within the AWT Event Dispatch Thread!");

         }

     }

 }