import controlP5.*;
import java.util.*;
import java.math.*;

ControlP5 controlP5;
//controlP5.Label label;
int RainNumber =0;
int Arraysize;
int Index = 0;
float Default = 0.61;

//ControlFont ctrlfont;
ParticleSystem ps;

//constants to set gradient direction
int Y_AXIS = 1;
int X_AXIS = 2;
//Plotting constants
int unitX, unitY;
int plotX1, plotX2;
int plotY1, plotY2;
int labelX, labelY;
int dataMin, dataMax;
int XMIN, XMAX;
PFont font, font0, font1, font2;

ArrayList datapoints;
double[][] data;
Integrator[] interpolators; 

String[] CatNames = {"Europe", "Asia", "Africa", "North America", "South America", "Other"};  

void setup()
{
  //ensure a 3:2 aspect ratio
  size(1200,800);
//  background(80); 
  frameRate(60);  
  
  //define grid unit size..
  unitX = width/60;
  unitY = height/40;
  //smooth();
  
  datapoints = loadTransactions();
  
  RainNumber = ceil(100*(float)Default);
  double minDist = abs((float)data[0][0]-Default);
  for(int i = 0; i<Arraysize; i++){
    double curDist = abs((float)data[i][0]-Default);
    if(curDist>minDist){
      Index = Index;
    }
    else{
      Index = i;
    }
    minDist = curDist;
  } 
  
  //Load font library
  //font = loadFont("Helvetica-14.vlw");
  font0 = loadFont("HelveticaNeue-Light-13.vlw");
  font1 = loadFont("HelveticaNeue-Light-10.vlw");
  font2 = loadFont("HelveticaNeue-Light-22.vlw");
  
  //Set Plot dimensions
  plotX1 = 7*unitX; 
  plotX2 = width-(7*unitX); 
  plotY1 = 6*unitY; 
  plotY2 = height-6*unitY; 
  labelX = 4*unitY+ unitY/2; 
  labelY = height-(3*unitX+unitX/2); 
  
  //Define data ranges
  dataMin = 0; 
  dataMax = 400;
  XMIN = 0; 
  XMAX = 100; 
  
  //Slider Setup  
  controlP5 = new ControlP5(this);
//  controlP5.disableColorBackground();
  //s = controlP5.addSlider("slider",0,100,0,width-60,100,10,height-200);
  Slider s = controlP5.addSlider("slider",0,2.1,(float)Default,plotX2+1*unitX,plotY1,floor(1.6*unitX),plotY2-plotY1);
  silderSetup(s);
  
  //Rain Setup
  ps = new ParticleSystem(1, new PVector(width,height,0));
   
  
  
  interpolators = new Integrator[7];
  int wetness = floor(map(RainNumber, 0.0,100.0,0.0,datapoints.size()-1));
  for (int row = 0; row < 6; row++) {
    float initialValue = (float)data[wetness][row+1];
//    total = total + (int)datapoints.get(row).europe; 
    interpolators[row] = new Integrator(initialValue);
    interpolators[row].attraction = 0.15;
  }
   
}

void draw()
{
  background(15); 
  //drawGrid();
  drawPlot();
  drawTitle();
  drawAxisLabels();
 // drawXLabels(); 
  drawYLabels(); 
  ps.run();
  //controlP5.draw();

  double rain = drawData();
  
  int dropValue = ceil(map(Index,0,Arraysize,0,9));//ceil(map(RainNumber-0.1, 0, 50, 0, 9));
//  framecount = framecount % 60;
  for(int i = 0;i<floor(dropValue); i++){
    int xloc = floor(random(plotX1,plotX2));
    ps.addParticle(xloc,plotY1);
  } 
  
 // drawArrow();
 
  for(int row=0; row < 6; row++){
    interpolators[row].update();
  }
  //setCurrent();
}
  
double drawData()
{
  int barWidth = 5*unitX;
  noStroke(); 
  
  rectMode(CORNERS); 
  textAlign(CENTER); 
//  println("oh hai"+datapoints.size());
//    int wetness = floor(map(RainNumber, 0.0,100.0,0.0,datapoints.size()-1));
  float x = map(0,0,6, plotX1, plotX2)-4*unitX; 
  
  for (int cat = 0; cat < 6; cat++) {
    float yvalue = interpolators[cat].value;
 
    float x_pos = map(cat, 0, 6, plotX1+unitX, plotX2)+3*unitX;
    float volume = (float)data[Index][cat+1];
    int y = floor(map(volume, dataMin, dataMax, plotY2, plotY1));
    
    fill(200,200);
    rect(x_pos-barWidth/2, y, x_pos+barWidth/2,plotY2);
    fill(80);
    text(CatNames[cat], x_pos, y+unitY);
  }

  int lineWidth = 2;
  Arraysize = datapoints.size();
  for(int m = 0; m<Arraysize;m++){
    float p_num = (float)data[m][0];
    float xstart = plotX2+unitX;
    if(Arraysize == Index){
      fill(255,0);
    }
    else {
      fill(200,200);
    }
    
    float p = (float)data[m][0];
    float y = map(p, 0, 2.1,plotY2-2,plotY1+2);
    float total = (float)data[m][7];
    float xheight = map(floor(total),0,1000,0,unitX)+ xstart;
    rect(xstart, y+lineWidth/2, xheight,y-lineWidth/2);
  }
    
  fill(180);
  textFont(font0);
  textAlign(RIGHT);
//  text(" Current precipitation (inches) :", plotX2, height - 4.1*unitY);
////  text(" Average temperature (ºF) : ", plotX2, height - 2.5*unitY);
//  textAlign(RIGHT);
//  textFont(font2);
//  fill(255);  
  float precipitation =  (float)data[Index][0];
//  text((nf(precipitation,1,2)).toString(), plotX2+2.79*unitX, height - 4*unitY);

return precipitation;

}