import processing.serial.*;
import gohai.glvideo.*;
import ddf.minim.*;
import ddf.minim.ugens.*;

String[] langs = {"NONE","Italian","English","Spanish","German","French","Russian"};
int langsN = langs.length;

Minim minim;
AudioOutput out;
AudioSample [] sample = new AudioSample[langsN];
GLMovie video;

Serial myPort;
String dataIn = "";
char linefeed = '\n';
int currentLang = 0;
int millis = 0;
boolean isPlaying = false;
int ms = 0;

void setup()  {
  size(1920, 1080, P2D);

  myPort = new Serial(this, "/dev/ttyUSB0", 9600);
  minim = new Minim(this);
  out   = minim.getLineOut();

  for(int i=0; i<langsN; i++) {
    sample[i] = minim.loadSample( langs[i]+".aiff" );
    sample[i].stop();
  }

  //delay(5000);
  video = new GLMovie(this, "loop.mp4");
  video.loop();
  println("Ready!");

}


void draw() {
  background(0);

  isPlaying = millis >= millis();

  if (video.available()) {
    video.read();
  }
  image(video, 0, 0, width, height);

  if(isPlaying) {
    ms = ms < 255 ? ms+1 : 255;
  } else {
    ms = ms > 0 ? ms-1 : 0;
  }
  tint(255, ms);

  printLanguage();

  if(myPort.available() > 0) {
    dataIn = myPort.readStringUntil(linefeed);
    if (dataIn != null) {
      String[] split = dataIn.split("\t");
      currentLang = split.length > 1 ? parseInt(trim(split[1])) : 0;
      for(int i=0; i<langsN; i++) {
        sample[i].stop();
      }

      millis = millis() + sample[currentLang].length();
      sample[currentLang].trigger();
      println("Speech " + langs[currentLang]);
    }
  }

  //println(sample[currentLang].length(), millis, millis());
}

void printLanguage() {
  fill(255);
  stroke(255);
  textSize(16);
  textAlign(CENTER, CENTER);
  text("Selected language:", width/2, (height/2)-50);
  textSize(22);
  text(langs[currentLang], width/2, height/2);

  if(isPlaying) {
    textAlign(LEFT, CENTER);
    text("Playing",10,10);
  }
}