import peasy.org.apache.commons.math.*; 
import peasy.*; 
import peasy.org.apache.commons.math.geometry.*; 

import proxml.*;
import proxml.XMLElement;
PFont font;

PeasyCam cam; 
ArrayList graph = new ArrayList(); 
XMLInOut xmlIO;

String dateRange;
String siteUri;
String totalVisits;
float cScreen;
float notNumericValues; // take account of non numerical values to draw the graph correctly, starting from -elem_length/2
XMLElement[] monthlyVisits;
ArrayList numericaData = new ArrayList();
float dataMin = MAX_FLOAT;
float dataMax = MIN_FLOAT;

void setup(){
  size(900,600,P3D);
  smooth();
  cam = new PeasyCam(this, 46); 
  xmlIO = new XMLInOut(this);
  xmlIO.loadElement("imageslide-report.xml");
  textFont(loadFont("ArialRoundedMTBold-30.vlw"), 1.0);
  
}

void xmlEvent(XMLElement element){
  monthlyVisits = element.firstChild().getChild(3).getChildren();
  dateRange = element.firstChild().getChild(1).getChild(2).firstChild().getText();
  siteUri = element.firstChild().getChild(1).getChild(8).firstChild().getText();
  totalVisits = element.firstChild().getChild(4).getChild(0).firstChild().firstChild().getText();

  for(int i = 0; i < monthlyVisits.length; i++)
  {
      String dailyVisits = monthlyVisits[i].firstChild().getText();
      if(itsNumber(dailyVisits))
      {
      DataMinMax(dailyVisits);
      Float f = new Float(dailyVisits);      
      numericaData.add(f);   
      }
  }
  for(int j=0; j<numericaData.size(); j++) { 
    cScreen = numericaData.size()/2;
    float f = (Float) numericaData.get(j);
    String dailyVisits = monthlyVisits[j].firstChild().getText();
    String dayOfVisit = element.firstChild().getChild(2).getChild(10).getChild(10+(j-1)).getChild(1).firstChild().getText();
    float blockHeight = map(f, 0, dataMax, 0, 3); 
    graph.add(new Block(new PVector((-cScreen + j)*2, -1, 1),new PVector(1,blockHeight,1), 1, 1, 1, dailyVisits, dayOfVisit));
  }   
}

//void xmlEvent(XMLElement element){
//  println(element.firstChild().getChild(2).getChild(10).getChild(10).getChild(1).firstChild().getText());
//}


void draw() 
{ 
  background(#ffffff);
    rotateX(radians(-23));
    pushMatrix();
    fill(#000000);
    textSize(1.2);
    textAlign(CENTER);
    text("Page URL: "+ siteUri + "\n" + "Time Interval: " + dateRange + "\n" + "Total Visits: " + totalVisits, 0, -12, 1);
    popMatrix();
    
    for(int j=0; j<graph.size(); j++) { 
      Block b = (Block) graph.get(j); 
      b.build();      
    } 

//   mm.addFrame(); 
} 


boolean itsNumber(String in) {
    try {   
    Float.valueOf(in.trim()).floatValue();
    } 
    catch (NumberFormatException ex) {
      notNumericValues++;
      return false;
    }
    return true;
}

void DataMinMax(String v)
{
     float value = Float.parseFloat(v);
      if (value > dataMax) {
        dataMax = value;
      }
      if (value < dataMin) {
        dataMin = value;
      }    
}  

  class Block 
{ 
  PVector initPos  = new PVector(); 
  PVector scaleRatio = new PVector(1,1,1); 
  float rotX, rotY, rotZ;  
  String dailyVisits;
  String weekDay;
  //int txTure = int(random(6)); 
  float[] coords = { 
    /*+z front*/  -1, -1,  1,  1, -1,  1,  1,  1,  1, -1,  1,  1,  
    /*-z back*/    1, -1, -1, -1, -1, -1, -1,  1, -1,  1,  1, -1,  
    /*+y bottom*/ -1,  1,  1 , 1,  1,  1,  1,  1, -1 ,-1,  1, -1,  
    /*-y top*/    -1, -1, -1,  1, -1, -1,  1, -1,  1, -1, -1,  1,  
    /*+x right*/   1, -1,  1,  1, -1, -1,  1,  1, -1,  1,  1,  1,  
    /*-x left*/   -1, -1, -1, -1, -1,  1, -1,  1,  1, -1,  1, -1  
  }; 
 
  Block() 
  { 
     
  } 
   
  Block(PVector _initPos, PVector _scaleRatio, float _rotX, float _rotY, float _rotZ, String dv, String wd) 
  { 
    initPos = _initPos; 
    scaleRatio = _scaleRatio; 
    rotX = _rotX; 
    rotY = _rotY; 
    rotZ = _rotZ;
    dailyVisits = dv;
    weekDay = wd;
  } 
  
  void build() 
  {     
    for(int i = 0; i <= 60; i+=12){
      stroke(#000000);
      line(coords[i]+initPos.x, 0, coords[i+2]+initPos.z, coords[i]+initPos.x, 0, coords[i+2]+initPos.z+2); 
      float dv =  Float.parseFloat(dailyVisits);
      if(dv >= dataMax){
      fill(#24A4BC);
      }
      else fill(#ffffff);
      beginShape(QUADS);  
      vertex((coords[i]+initPos.x)*scaleRatio.x, (coords[i+1]+initPos.y)*scaleRatio.y,  (coords[i+2]+initPos.z)*scaleRatio.z); 
      vertex((coords[i+3]+initPos.x)*scaleRatio.x, (coords[i+4]+initPos.y)*scaleRatio.y,  (coords[i+5]+initPos.z)*scaleRatio.z);  
      vertex((coords[i+6]+initPos.x)*scaleRatio.x, (coords[i+7]+initPos.y)*scaleRatio.y,  (coords[i+8]+initPos.z)*scaleRatio.z);  
      vertex((coords[i+9]+initPos.x)*scaleRatio.x, (coords[i+10]+initPos.y)*scaleRatio.y,  (coords[i+11]+initPos.z)*scaleRatio.z); 
      endShape();  
  
      fill(#000000);
      textSize(0.45);
      pushMatrix();
      textAlign(CENTER);
      rotateX(HALF_PI);      
      text("Visits \n"+dailyVisits, initPos.x, 3, 0);
      pushMatrix();
      textSize(0.7);
      textAlign(RIGHT);
      rotateZ(-HALF_PI);
      text(weekDay, -5, initPos.x , 0);
      popMatrix();
      popMatrix();
    }  
    } 
}