import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.effects.*;
import ddf.minim.signals.*;
import ddf.minim.spi.*;
import ddf.minim.ugens.*;

import cc.arduino.*;
import org.firmata.*;
import ddf.minim.*;
import ddf.minim.analysis.*;
import processing.serial.*;
import cc.arduino.*;

Arduino arduino;

Minim minim;
AudioPlayer song;
FFT fft;

int redPin1 = 5;
int greenPin1 =6;
int bluePin1 = 9;


int color_id = 0;


void setup() {
    size(800, 600);

    arduino = new Arduino(this, "com5", 57600);
    for (int i = 0; i <= 13; i++) arduino.pinMode(i, Arduino.OUTPUT);
    for (int i = 0; i <= 13; i++) arduino.analogWrite(i,255);

    minim = new Minim(this);
    song = minim.loadFile("song.mp3");
    song.play();
    fft = new FFT(song.bufferSize(), song.sampleRate());
}

void draw() {
    background(#FFFFFF);

    fft.forward(song.mix);

    strokeWeight(0.5);
    stroke(#8FF442);

    // frequency
    pushMatrix();
      translate(100, 0);
      for(int i = 0; i < 0+fft.specSize(); i++)
       {      
                          line(i, height*4/5, i, height*4/5 - fft.getBand(i)*4);
                          if(i%100==0) text(fft.getBand(i), i, height*4/5+20);
                          if(i==200) {
                                    if(fft.getBand(i)>2) 
                                    {
                                      setColor1(100,0,255);
                                      
                                    }
                                    else if(fft.getBand(i)>1)
                                    {
                                      setColor1(50,255,50);
                                      
                                    }
                                     else
                                   {
                                      setColor1(255,0,0);
                                      
                                    }
                          }
                          if(i==50) 
                          {
                            if(fft.getBand(i)>5) 
                            {
                              color_id = (color_id+1)%4;
                            } 
                         //   else if(fft.getBand(i)>3)
                         //  {
                         //     if(color_id==0) setColor2(0,255,0);
                         //     else if(color_id==1) setColor2(0,255,255);
                         //     else if(color_id==2) setColor2(0,0,255);
                         //     else setColor2(255,0,0);
                         //   }
                         //   else 
                         //   {
                         //     setColor2(255,255,255);
                         //   }
                          }
      }
    popMatrix();

    stroke(#FF0000);

    //waveform
    for(int i = 100; i < song.left.size() - 1; i++) 
    {
      line(i, 50 + song.left.get(i)*50, i+1, 50 + song.left.get(i+1)*50);
      line(i, 150 + song.right.get(i)*50, i+1, 150 + song.right.get(i+1)*50);
      line(i, 250 + song.mix.get(i)*50, i+1, 250 + song.mix.get(i+1)*50);
    }

    noStroke();
    fill(#FFFFFF);
    rect(0, 0, 100, height);

    textSize(16);
    fill(#046700);
    text("Left", 10, 50);
    text("Right", 10, 150);
    text("Mixed", 10, 250);
    text("Frequency", 10, height*4/5);
}

void stop()
{
    for (int i = 0; i <= 13; i++) arduino.digitalWrite(i,arduino.HIGH);
    song.close();
    minim.stop();
    super.stop();
}
void setColor1(int red, int green, int blue)
{
  arduino.analogWrite(redPin1, red);
  arduino.analogWrite(greenPin1, green);
  arduino.analogWrite(bluePin1, blue);
}