import papaya.*;
import guicomponents.*;

Study aStudy;

PFont myfont, myboldfont;
PImage smallleft, smallup, smalldown, smallright;
PImage ce, hyp0, hyp1, hyp2, hyp3, test1, test2, test3;

GCombo cb1, cb6, cb7, cb4;
GTextField tf3;

JakeButton leftarrow, rightarrow, bg, bl, bd, ans;

String[] str1 = {
  "Case 1 - Known Variances", "Case 2 - Unknown Variances, n large", "Case 3 - Unknown Variances, n small"
};
String[] str6 = {
  "more than 5%", "less than 5%"
};
String[] str7 = {
  "Reject Ho", "Cannot reject Ho"
};
String[] str4 = {
  "Z formula 1", "Z formula 2", "t formula"
};

int page = 1, rel, score;
float testvalue, zvalue, tcomp, p;

boolean[] answered = {
  false, true, false, false, false, false, false, false, true
};
String[] answers = {
  "", "", "", "", "", "", "", "", ""
};

float[] graphdata;
PGraphics pg;
String feedback = "";

void setup()
{
  size(700, 500);
  smooth();
  loadData();

  aStudy = new Study();

  graphdata = new float[101];
  for (int i = 0; i < 101; i++) {
    float x = -3.0 + 0.06*i;
    graphdata[i] = exp(-x*x/2)/sqrt(2*PI);
  }
  pg = createGraphics(500, 200, P2D);

  cb1 = new GCombo(this, str1, 3, 80, 270, 250);
  tf3 = new GTextField(this, "", 200, 310, 100, 20, false);
  cb6 = new GCombo(this, str6, 2, 80, 310, 100);
  cb7 = new GCombo(this, str7, 2, 80, 250, 250);
  cb4 = new GCombo(this, str4, 3, 80, 250, 100);

  PImage[] greaterset = {loadImage("greaterthandark.jpg"),loadImage("greaterthanlight.jpg")};
  bg = new JakeButton(60,70,greaterset[1],greaterset[0],greaterset[0]);
  
  PImage[] lessset = {loadImage("lessthandark.jpg"),loadImage("lessthanlight.jpg")};
  bl = new JakeButton(60,120,lessset[1],lessset[0],lessset[0]);
  
  PImage[] differentset = {loadImage("differentfromdark.jpg"),loadImage("differentfromlight.jpg")};
  bd = new JakeButton(60,170,differentset[1],differentset[0],differentset[0]);
  
  PImage[] answerset ={loadImage("answerdark.jpg"),loadImage("answerlight.jpg")};
  ans = new JakeButton(200,430,answerset[1],answerset[0],answerset[0]); 

  PImage[] lefts = {loadImage("leftblue.jpg"), loadImage("leftpurple.jpg")};
  leftarrow = new JakeButton(30,415,lefts[1],lefts[0],lefts[0]);

  PImage[] rights = {loadImage("rightblue.jpg"), loadImage("rightpurple.jpg")};
  rightarrow = new JakeButton(615,415,rights[1],rights[0],rights[0]);
}

void draw()
{
  background(255);
  fill(0);

  generateProblem();

  switch(page) {
  case 1:
    page1();
    break;
  case 2:
    page2();
    break;
  case 3:
    page3();
    break;
  case 4:
    page4();
    break;
  case 5:
    page5();
    break;
  case 6:
    page6();
    break;
  case 7:
    page7();
    break;
  case 8:
    page8();
    break;
  case 9: 
    page9();
    break;
  }

  if (page<9) {
    fill(255, 0, 0);
    text("Score: " + score + " / 70", 450, 460);

    if (answered[7]) {
      text("Final", 405, 460);
    }
  }
  
  leftarrow.updateButton();
  leftarrow.drawButton();
  
  if(leftarrow.clicked)
  {
    feedback = "";
    cb1.setSelected(0);
    tf3.setText("");

    page--;

    if (answered[page-1])
      feedback = "You answered this question with " + answers[page-1];
  }
  
  rightarrow.updateButton();
  rightarrow.drawButton();
  
  if(rightarrow.clicked)
  {
    feedback = "";
    cb1.setSelected(0);
    tf3.setText("");

    if (answered[page-1]) {
      page++;
    }
    else {
      feedback = "You have to answer this question before continuing.";
    }
    if (page>9) {
      page = 1;
      aStudy = new Study();
      score = 0;
      answered = new boolean[] {
        false, true, false, false, false, false, false, false, true
      };
    }

    if (answered[page-1])
      feedback = "You answered this question with " + answers[page-1];
  }
  
  bg.updateButton();
  bg.drawButton();
  
  if (bg.clicked) rel=0;
  
  bl.updateButton();
  bl.drawButton();
  
  if(bl.clicked) rel = 1;
  
  bd.updateButton();
  bd.drawButton();
 
  if(bd.clicked) rel = 2; 
  
  ans.updateButton();
  ans.drawButton();
  
  if(ans.clicked)
  {
    if (!answered[page-1])
      response();
    else
      feedback = "You answered this question with " + answers[page-1];
  }

}