package boondock.holdem.Sound;

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.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;


public class waveObj {

	private static final int EXTERNAL_BUFFER_SIZE = 128000;
	SourceDataLine line = null;
	private waveObjPlayer player;
	boolean wpausehit = false;
	private long position;
	private String file;
	/**
	 * Creates a new wave object.
	 */
	public waveObj() { position = 0; }
	/**
	 * Creates a new wave object from a file name.
	 *
	 * @param file the file name of the WAVE song
	 */
	public waveObj(String file) { setFile(file); }
	/**
	 * Gets the file name of the wave file.
	 *
	 * @return the file name of the wave file.
	 */
	public String getFile() { return file; }
	/**
	 * Sets the file name of the wave file.
	 *
	 * @param file the file name of the wave file.
	 */
	private void setFile(String file) { this.file = file; }
	/**
	 * Converts the song to a string. Basically, just gives the file name.
	 *
	 * @return the string representation of the song
	 */
	public String toString() {
		File f = new File(getFile());
		return f.getName();
	}
	/**
	 * Checks if a named file is a valid wave file.
	 *
	 * @param file the file name to be ckecked
	 * @return <code>true</code> if the file is a WAVE, <code>false</code>
	 * otherwise throw exception
	 */
	public static boolean isWave(String file) {
		try {
			AudioSystem.getAudioFileFormat(new File(file));
		}
		catch (Exception exception) {
			return false;
		}

		return true;
	}
	//public int getLength() { return 0; }
    /**
	 * Begins playback of the wave file object.
	 *
	 */
	private void play() {
		wpausehit = false;
		player = new waveObjPlayer();
		player.start();
	}
    /**
	 * Take in the name of the wave file object and begins playback of the wave file object.
	 *
	 */
	public void play(String file) {
		this.file = file;
		wpausehit = false;
		player = new waveObjPlayer();
		player.start();
	}
	private static void out(String strMessage) {
		System.out.println(strMessage);
	}

    /**
	 * Pauses playback of wave file object.
	 */
	public void pause() {
		if(wpausehit) {
			wpausehit = false;
			player.unpause();
		}
		else {
			wpausehit = true;
			player.pause();
		}
	}
	/**
	 * Terminates playback of wave file object.
	 */
	public void stop() {
		player.end();
		//might crash if song is not currently playing!
	}
	private class waveObjPlayer extends Thread {
		private boolean playing;
		public waveObjPlayer() { playing = false; }
		public void run() {
			playing = true;

			File	soundFile = new File(file);
			/*
			  Read in the sound file through audio input stream.
			*/
			AudioInputStream audioInputStream = null;
			try {
				audioInputStream = AudioSystem.getAudioInputStream(soundFile);
			}
			catch (Exception exception) {
				//System.out.println("You do not have a sound card, and therefore CANNOT play sound on your computer.");
				//System.exit(1);
				System.out.println("Sound exception error.");
			}
			AudioFormat	audioFormat = audioInputStream.getFormat();
			line = null;
			DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
			try {
				line = (SourceDataLine) AudioSystem.getLine(info); //get a line
				line.open(audioFormat);  //open it for audio data
			}
			catch (Exception exception) {
				//System.out.println("You do not have a sound card, and therefore CANNOT play sound on your computer.");
				//System.exit(1);
				System.out.println("Sound exception error.");
			}
			line.start();
			int	nBytesRead = 0;
			byte[]	abData = new byte[EXTERNAL_BUFFER_SIZE];
			/*
			  Loop playback
			*/
			while (nBytesRead != -1 && playing) {
				try {
					nBytesRead = audioInputStream.read(abData, 0, abData.length);
				}
				catch (IOException exception) {
					//System.out.println("You do not have a sound card, and therefore CANNOT play sound on your computer.");
					//System.exit(1);
					System.out.println("Sound exception error.");
				}
				if (nBytesRead >= 0) {
					int	nBytesWritten = line.write(abData, 0, nBytesRead);
				}
			}
			line.drain();
			line.close();
			//
		}
		public void end() {
			playing = false;
		}
		public void pause() {
			line.stop();
		}
		public void unpause() {
			line.start();
		}
	}
}