package horstmann.ch09_animation2;
import java.awt.BorderLayout;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

/**
   This program animates a sort algorithm.
 */
public class AnimationTester
{
  public static void main(String[] args)
  {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    ArrayComponent panel = new ArrayComponent();
    frame.add(panel, BorderLayout.CENTER);

    JButton stepButton = new JButton("Step");
    final JButton runButton = new JButton("Run");

    JPanel buttons = new JPanel();
    buttons.add(stepButton);
    buttons.add(runButton);
    frame.add(buttons, BorderLayout.NORTH);
    frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
    frame.setVisible(true);

    Double[] values = new Double[VALUES_LENGTH];
    for (int i = 0; i < values.length; i++)
      values[i] = Math.random() * panel.getHeight();

    final BlockingQueue<String> queue = new LinkedBlockingQueue<String>();
    queue.add("Step");

    final Sorter sorter = new Sorter(values, panel, queue);

    stepButton.addActionListener(event -> {
      queue.add("Step");
      runButton.setEnabled(true);
    });

    runButton.addActionListener(event -> {
      runButton.setEnabled(false);
      queue.add("Run");
    });

    Thread sorterThread = new Thread(sorter);
    sorterThread.start();
  }

  private static final int FRAME_WIDTH = 300;
  private static final int FRAME_HEIGHT = 300;
  private static final int VALUES_LENGTH = 30;
}