package edpmg.audio.engine;
import javax.swing.text.GapContent;

import jm.JMC;
import jm.audio.Instrument;
import jm.audio.RTMixer;
import jm.music.data.*;
import jm.music.rt.RTLine;
import jm.music.rt.RTPhrase;
import jm.util.*;

public class GABassLine extends RTLine implements JMC {
    private Note n = new Note(36, 0.5);
 Phrase bassLine1 = new Phrase(0.0);
 Phrase bassLine2 = new Phrase(0.0);
 Phrase resultBassLine = new Phrase(0.0);
 int phraseGenotypeSize = 16;
 int[] availablePitches = {36, 36, 40, 43, 45, 48, 52, 55};
 private Note[] notesArray;
    private int pitch = 36;
    private double panPosition = 0.5;
 
 public GABassLine(Instrument[] instArray) {
  super(instArray);
  Part bassPart = new Part(SYNTH_BASS);
  bassPart.setTempo(132.0);
  
  //parent phrase 1
  for (int i=0;i<phraseGenotypeSize;i++) {
   int pitch = availablePitches[(int)(Math.random() * availablePitches.length)];
   bassLine1.add(new Note(pitch, 0.25));
  }
  //parent phrase 2
  for (int i=0;i<phraseGenotypeSize;i++) {
   int pitch = availablePitches[(int)(Math.random() * availablePitches.length)];
   bassLine2.add(new Note(pitch, 0.25));
  }
  for (int i=0; i<8; i++) {
   Phrase childBassLine1 = createChild();
   Phrase childBassLine2 = createChild();
   
   childBassLine1.setStartTime(8.0 * i);
   childBassLine2.setStartTime(8.0 * i + 4.0);
   bassPart.add(childBassLine1);
   bassPart.add(childBassLine2);
   
   bassLine1 = childBassLine1;
   bassLine2 = childBassLine2;
  }
  View.show(bassPart);
  //Play.midi(bassPart);

  // this is clearly wrong, in that I thought it would turn the bassPart Part into a Phrase, but it does not
  // when debugging, all elementData inside noteList inside resultBassLine shows as null (each of the 9 elements
  // in the array show null value)
  //
  // must find different way of turning the output of mutation and crossover above into RTPhrase
  resultBassLine = bassPart.createPhrase();
 }
    /**
    * Generate the next note when requested.
    */
    public synchronized Note getNote() {
     
     //traversing the resultBassLine array to get values for n, which is Note getNote wants
     //however (read comments above), this may be full of null, as I can't seem to parse bassPart into a Phrase
  for (int j1=0; j1 < resultBassLine.getSize(); j1++) {
   n.equals(resultBassLine.getNote(j1));       
  }
        n.setDynamic((int)(Math.random()* 80 + 45)); 
        n.setRhythmValue((int)(Math.random() * 2 + 1) * 0.25);
        n.setDuration(n.getRhythmValue() * 0.9);
        return n; 
    } 
 @Override
 public Note getNextNote() {
  for (int j1=0; j1 < resultBassLine.getSize(); j1++) {
   n.equals(resultBassLine.getNote(j1));       
  }
        n.setDynamic((int)(Math.random()* 80 + 45)); 
        n.setRhythmValue((int)(Math.random() * 2 + 1) * 0.25);
        n.setDuration(n.getRhythmValue() * 0.9);
        return n; 
    }
 private Phrase createChild() {
  Phrase tempPhrase = new Phrase();
  // crossover
  int crossOverPoint = (int)(Math.random() * phraseGenotypeSize);
  for (int j=0; j<crossOverPoint; j++) {
   tempPhrase.add(bassLine1.getNote(j).copy());
  }
  for (int j=crossOverPoint; j<phraseGenotypeSize; j++) {
   tempPhrase.add(bassLine2.getNote(j).copy());
  }
  // mutation
  Note n = tempPhrase.getNote((int)(Math.random() * phraseGenotypeSize));
  int pitch = availablePitches[(int)(Math.random() * availablePitches.length)];
  n.setPitch(pitch);
  
  return tempPhrase;
 }

    /** Allow other classes to set the notes pan value */
    public void setPanValue(double p) {
        this.panPosition = p;
    }
    
    public void SetPitch(int newPitch)
    {
     pitch=newPitch;
    }

}