import ptext.*;
import pitaru.sonia_v2_9.*;

// Section 1 - Declare Variables ====================================
int SAMPLE_LENGTH_MILLIS = 3250;

PFont font;
int mode = 5;
int timeStamp;
int[] alphas = {255,200,150,100,50,15};
PText[] ptexts = new PText[6];
Sample[] samples = new Sample[6];

// Section 2 - Code to run once =====================================

void setup() 
{
  // Set the sketch size (in pixels)
  size(750,250);
  
  // Load the font from your sketches data directory
  font = loadFont("AbadiMT-CondensedExtraBold-32.vlw");

  // Set the current font and font-size
  textFont(font, 32);

  Sonia.start(this);
  for (int i = 0;i < stanzas.length; i++) {
      for (int j = 0;j < samples.length; j++) {
        String sFile = i+"_"+j+".wav";
        stanzas[i].samples[j] = new Sample(sFile);
      }
  }
  
  nextLine();
}

void stop() {
  Sonia.stop();
}

// Section 3 - Code to run each frame ===============================

void draw() 
{
  background(0);
  PText.drawAll(PText.LEFT);
  if (millis() - SAMPLE_LENGTH_MILLIS  > timeStamp) {
    nextLine();
  }
}

void setAlphas() 
{
  if (mode == 0) {
    alphas[0] = 255;
    alphas[1] = 100;
    alphas[2] = 75;
    alphas[3] = 50;
    alphas[4] = 25;
    alphas[5] = 15;
  }
  else if (mode == 1) {
    alphas[0] = 50;
    alphas[1] = 255;
    alphas[2] = 100;
    alphas[3] = 75;
    alphas[4] = 50;
    alphas[5] = 25;

  }
  else if (mode == 2) {
    alphas[0] = 25;
    alphas[1] = 50;
    alphas[2] = 255;
    alphas[3] = 100;
    alphas[4] = 75;
    alphas[5] = 50;
  }
  else if (mode == 3) {
    alphas[0] = 15;
    alphas[1] = 25;
    alphas[2] = 50;
    alphas[3] = 255;
    alphas[4] = 100;
    alphas[5] = 75;
  }
  else if (mode == 4) {
    alphas[0] = 10;
    alphas[1] = 15;
    alphas[2] = 25;
    alphas[3] = 50;
    alphas[4] = 255;
    alphas[5] = 100;
  }
  else if (mode == 5) {
    alphas[0] = 7;
    alphas[1] = 10;
    alphas[2] = 15;
    alphas[3] = 25;
    alphas[4] = 50;
    alphas[5] = 255;
  }
  
  // set the fill color for each ptext
  for (int i = 0;i < ptexts.length; i++) {
      ptexts[i].fadeTo(255,255,255,alphas[i], 2.0);
  }
}

void nextStanza() 
{
  mode = 0;
  AudibleLine[] lines = getUniqueEndingsStanza();  
  for (int i = 0;i < lines.length; i++) {
    if (ptexts[i]==null) ptexts[i] = new PText(this);
    ptexts[i].setPosition(25, 50+(i*30));
    ptexts[i].setText(lines[i].text);
    if (samples[i] != null) 
      samples[i].stop();
    samples[i] = lines[i].sample;
    samples[i].setVolume(0);
  }
  samples[mode].setVolume(1);
  samples[mode].play();
  println("new stanza @ "+timeStamp/1000f+"s");
}

void nextLine() 
{
  mode++;
  if (mode == 6) nextStanza();

  // start the correct sample
  for (int i = 0;i < samples.length; i++) {
    samples[i].setVolume(0);
    samples[i].play();
  }
  samples[mode].setVolume(1);
  timeStamp = millis();
  if (mode == 5)
    timeStamp += SAMPLE_LENGTH_MILLIS/3;
  setAlphas();
}

// This is a container for one Stanza
class Stanza 
{
  int id;
  String[] lines = new String[6];
  Sample[] samples = new Sample[6];

  Stanza(int id, String ln1, String ln2, String ln3, String ln4, String ln5, String ln6) {
    this.id = id;
    lines[0] = ln1;
    lines[1] = ln2;
    lines[2] = ln3;
    lines[3] = ln4;
    lines[4] = ln5;
    lines[5] = ln6;
  }
}

// This is a container for 1 line + 1 sample
class AudibleLine {
  String text;
  Sample sample;
  AudibleLine(String t, Sample s) {
    text = t;
    sample = s;
  }
}

AudibleLine[] getUniqueEndingsStanza()
{
  int successes = 0;
  AudibleLine[] result = new AudibleLine[6];
  int[] choices = { 0,1,2,3,4,5,6,7,8 };
  while (successes < 6)
  {
    int num = choices[(int)random(0, choices.length)];   
    if (num < 0) continue;   
    Stanza currentStanza = stanzas[num];
    result[successes] = randomFromStanza(currentStanza);
    choices[num] = -1;
    successes++;
  }
  return result;
}

AudibleLine randomFromStanza(Stanza chosenStanza)
{
  // Pick a random line # from stanza
  int lineNo = (int)random(chosenStanza.lines.length);
  return new AudibleLine(chosenStanza.lines[lineNo],chosenStanza.samples[lineNo]);
}