/*
//	Casey	Burkhardt and Michael Spence
//	CSC 1052-002 -	Algorithms and	Data Structures II
//	Spring 2008	GUI Competition Entry
//	LinkedList.java
//	Classes used to manage the	underlying ADT	of	Sequence	object.
//	Comments	Revoked due	to	Prior	Use.
 */

// Imports
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.UnsupportedAudioFileException;

public class Sound extends Thread {
	// Instance Data
	private String filename;
	private Position curPosition;
	private final int EXTERNAL_BUFFER_SIZE = 524288;

	// Enum Declaration
	enum Position {
		LEFT, RIGHT, NORMAL
	};

	// Sound Constructor
	public Sound(String wavfile) {
		filename = wavfile;
		curPosition = Position.NORMAL;
	}

	// Plays a Sound object
	public void run() {
		File soundFile = new File(filename);
		if (!soundFile.exists()) {
			System.err.println("Wave file not found: " + filename);
			return;
		}

		AudioInputStream audioInputStream = null;
		try {
			audioInputStream = AudioSystem.getAudioInputStream(soundFile);
		} catch (UnsupportedAudioFileException e1) {
			e1.printStackTrace();
			return;
		} catch (IOException e1) {
			e1.printStackTrace();
			return;
		}

		AudioFormat format = audioInputStream.getFormat();
		SourceDataLine auline = null;
		DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);

		try {
			auline = (SourceDataLine) AudioSystem.getLine(info);
			auline.open(format);
		} catch (LineUnavailableException e) {
			e.printStackTrace();
			return;
		} catch (Exception e) {
			e.printStackTrace();
			return;
		}

		if (auline.isControlSupported(FloatControl.Type.PAN)) {
			FloatControl pan = (FloatControl) auline
					.getControl(FloatControl.Type.PAN);
			if (curPosition == Position.RIGHT)
				pan.setValue(1.0f);
			else if (curPosition == Position.LEFT)
				pan.setValue(-1.0f);
		}

		auline.start();
		int nBytesRead = 0;
		byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];

		try {
			while (nBytesRead != -1) {
				nBytesRead = audioInputStream.read(abData, 0, abData.length);
				if (nBytesRead >= 0)
					auline.write(abData, 0, nBytesRead);
			}
		} catch (IOException e) {
			e.printStackTrace();
			return;
		} finally {
			auline.drain();
			auline.close();
		}
	}
}