/*
 * Created by Nick on Jan 3, 2005
 *
 */
package jmslexamples.simple;

import java.net.MalformedURLException;
import java.net.URL;

import com.softsynth.jmsl.*;
import com.softsynth.jmsl.midi.MidiIO_JavaSound;
import com.softsynth.jmsl.midi.MidiInstrument;

/**
 * Use a MusicJob to play ten MIDI notes with random pitch, duration, vel, and
 * hold time
 * 
 * @author Nick Didkovsky, (c) 2004 All rights reserved, Email:
 *         didkovn@mail.rockefeller.edu
 *  
 */
public class TenRandomMidiNotes extends java.applet.Applet {

    JMSLMixerContainer mixer;
    Instrument midiInstrument;

    MusicJob randomMusicJob;

    public void init() {
        JMSL.setIsApplet(true);
    }

    public void start() {
        synchronized (JMSL.class) {
            initJMSL();
            initMusicDevices();
            buildMixer();
            buildInstrument();
            buildRandomMusicJob();
            launchRandomMusicJob();
        }
    }

    private void initJMSL() {
        JMSL.scheduler = new EventScheduler();
        JMSL.scheduler.start();
        JMSL.clock.setAdvance(0.1);
    }

    private void initMusicDevices() {
        JMSL.clock = new DefaultMusicClock();
        initJavaSoundMidi();
    }

    private void initJavaSoundMidi() {
        JMSL.midi = MidiIO_JavaSound.instance();
        try {
            ((MidiIO_JavaSound) JMSL.midi).setSoundbankURL(new URL(getCodeBase(), "javasound/soundbank-min.gm"));
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
        JMSL.midi.open();
    }

    private void buildMixer() {
        mixer = new JMSLMixerContainer();
        mixer.start();
    }

    private void buildInstrument() {
        midiInstrument = new MidiInstrument(1);
        mixer.addInstrument(midiInstrument);
    }

    void buildRandomMusicJob() {
        randomMusicJob = new MusicJob() {
            public double repeat(double playTime) {
                double randomDuration = JMSLRandom.choose(0.1, 5.0);
                double randomPitch = JMSLRandom.choose(127) + 1;
                double randomVel = JMSLRandom.choose(30, 90);
                double randomHold = JMSLRandom.choose(0.2, 10.0);
                double[] data = { randomDuration, randomPitch, randomVel, randomHold };
                // FYI
                JMSL.printDoubleArray(data);
                return getInstrument().play(playTime, 1, data);
            }
        };
        randomMusicJob.setRepeats(10);
        randomMusicJob.setInstrument(midiInstrument);
    }

    private void launchRandomMusicJob() {
        randomMusicJob.launch(JMSL.now());
    }

    public void stop() {
        synchronized (JMSL.class) {
            randomMusicJob.finishAll();
            try {
                randomMusicJob.waitForDone();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            JMSL.scheduler.stop();
            JMSL.closeMusicDevices();
        }
    }
}