// Robert Twomey rtwomey@u.washington.edu

import processing.serial.*;

// voice recognition variables
Sphinx listener;
String s = "";

// receipt printer variables
Serial myPort;
static int LF = 10;
static boolean doprint = true;

// behavior parameters
static int silenttime = 60000;
int lastevent = 0;
boolean waiting;
PImage scriptImg;
PFont font;

void setup() {
  size(screen.width, screen.height-100);
  //size(800, 600);
  background(0);
  font = loadFont("Serif-48.vlw");
  textFont(font);
  scriptImg = loadImage("solipsist text.png");
  
  // setup printer if necessary
  if(doprint)
    setupPrinter();

  // setup speech recognition
  // NOTE: you need to set the appropriate audio input in microphone section of the config file
  // do this with a <property="selectMixer" value="XXX"> statement with appropriate value.
  // read more here: http://cmusphinx.sourceforge.net/sphinx4/doc/Sphinx4-faq.html#microphone_selection
  listener = new Sphinx(this,"bochner.config.xml");

  // set-up intra-utterance timing
  lastevent = 0;
  waiting = true;
}

void setupPrinter() {
  // serial init
  println(Serial.list());
  // I know that the first port in the serial list on my mac
  // is always my  Keyspan adapter, so I open Serial.list()[0].
  // Open whatever port is the one you're using.
  myPort = new Serial(this, Serial.list()[0], 4800);

  //init receipt printer
//  myPort.write(ESC);
//  myPort.write("@");

  // fast feed
  myPort.write(ESC);
  myPort.write('d');
  myPort.write(8);

//  // line feed
//  myPort.write(LF);
//
//  // cut paper
//  myPort.write(ESC);
//  myPort.write('i');

//  delay(1000);
}


void dispose() {
  listener.dispose();
}

void draw() { 
  background(0);
  image(scriptImg, 0, 0, width*0.9, height*0.9);
  text(s, 0, height*0.95);//scriptImg.height+100);
  
  // check how long it has been silent
//  if(!waiting && ((millis()-lastevent) > silenttime)) {
//    // advance and cut, set state to waiting for new input
//    advanceAndCut();
//    waiting = true;
//  }
}

void advanceAndCut() {
  // fast feed paper
  myPort.write(ESC);
  myPort.write('d');
  myPort.write(8); // feed this many lines

  // cut paper
  myPort.write(ESC);
  myPort.write('i');
}

void doQuit() {

  // advance paper and cut
  if(doprint)
    advanceAndCut();

  // close and dispose
  exit();
}

void SphinxEvent(Sphinx _l) {
  int now = millis();
  waiting = false;

  s = _l.readString(); // returns the recognized string

    // echo to screen 
  //  System.out.print("["+now+"] sphinx heard: "+s);

  // intra-utterance timing

  if(s.length() > 7) {
    // send to printer if necessary
    if(doprint) {
      myPort.write(s);
      myPort.write(LF);
    }
  } 
  else {
    System.out.print(" TOO SHORT!");
    s+=" TOO SHORT!";
  }

  System.out.print("["+now+"] "+s);

  System.out.println("  ("+(now-lastevent)+" since last utterance)");
  lastevent=now;

  // check for stop command
  if((s.indexOf("quit") >= 0) || (s.indexOf("exit") >= 0) || ((s.indexOf("stop") >= 0) && (s.indexOf("dystopian") < 0))) {
    doQuit();
  }

  if(s.lastIndexOf("cut")>=0)
    advanceAndCut();
}

void keyPressed() {
  if(key==' ') 
    advanceAndCut();
  if(key=='q')
    doQuit();
    
}