//global variables
var deck = {};
var rank = "";
var suit = "";
var deckArr = [];
var backImg = "<img class='back' src='https://s-media-cache-ak0.pinimg.com/236x/c1/59/b4/c159b4738dae9c9d8d6417228024de8d.jpg' />"

//Creates a tarot card deck 

function createDeck() {
  deckArr = [];

  function deckConst(name, displayName) {
    this.name = name;
    this.displayName = displayName;
  }

  var id = 0;
  for (var a0 = 0; a0 < 4; a0++) {

    switch (a0) {
      case 0:
        suit = "cups";
        break;
      case 1:
        suit = "pentacles";
        break;
      case 2:
        suit = "swords";
        break;
      case 3:
        suit = "wands";
        break;
    }

    for (var a1 = 1; a1 < 15; a1++) {
      var rank = a1;
      switch (a1) {
        case 1:
          rank = "ace";
          break;
        case 2:
          rank = "two"
          break;
        case 3:
          rank = "three"
          break;
        case 4:
          rank = "four"
          break;
        case 5:
          rank = "five"
          break;
        case 6:
          rank = "six"
          break;
        case 7:
          rank = "seven"
          break;
        case 8:
          rank = "eight"
          break;
        case 9:
          rank = "nine"
          break;
        case 10:
          rank = "ten"
          break;
        case 11:
          rank = "page";
          break;
        case 12:
          rank = "knight";
          break;
        case 13:
          rank = "queen";
          break;
        case 14:
          rank = "king";
          break;
        default:
          break;
      }
      id++;
      // assigns the name that jives with biddy tarot's urls
      var name = rank + "_" + suit;
      // overcomplicated way to title-case & replace '_' with ' '
      var displayName = name.replace(/_/g, " of ")
        .toLowerCase()
        .split(' ')
        .map(i => i[0].toUpperCase() + i.substring(1))
        .join(' ');

      card = new deckConst(name, displayName);
      deck[id] = card;
    }
  }

  deck[57] = new deckConst('fool');
  deck[58] = new deckConst('magician');
  deck[59] = new deckConst('high_priestess');
  deck[60] = new deckConst('empress');
  deck[61] = new deckConst('emperor');
  deck[62] = new deckConst('hierophant');
  deck[63] = new deckConst('lovers');
  deck[64] = new deckConst('chariot');
  deck[65] = new deckConst('strength');
  deck[66] = new deckConst('hermit');
  deck[67] = new deckConst('wheel_of_fortune');
  deck[68] = new deckConst('justice');
  deck[69] = new deckConst('hanged_man');
  deck[70] = new deckConst('death');
  deck[71] = new deckConst('temperance');
  deck[72] = new deckConst('devil');
  deck[73] = new deckConst('tower');
  deck[74] = new deckConst('star');
  deck[75] = new deckConst('moon');
  deck[76] = new deckConst('sun');
  deck[77] = new deckConst('judgement');
  deck[78] = new deckConst('world');

  // totally over-complicated code to capitolize, space & add a 'the' to trump cards that needed it
  for (var x = 57; x <= 78; x++) {
    var capStr = deck[x].name
      .replace(/_/g, " ")
      .toLowerCase()
      .split(' ')
      .map(i => i[0].toUpperCase() + i.substring(1))
      .join(' ');
    
      
    if (x === 65 || 
        x === 68 || 
        x === 70 || 
        x === 71 || 
        x === 77) {
      deck[x].displayName = capStr;
    } else {
      deck[x].displayName = "The " + capStr;
    }
  }



  for (var t = 0; t < 78; t++) {
    deckArr.push(t + 1);
  }

  return deckArr;
  return deck;
}

//gets image i = id from createDeck()
function riderWaite(i) {
  var img = $("<img class='front' src='https://www.biddytarot.com/cards/" +
    deck[i].name + ".jpg' alt=" + deck[i].displayName + "/>");
  return img;

}

//Selects random cards & prevents doubles
function randGen() {
  var cardsLeft = deckArr.length;
  var randInt = Math.floor((Math.random() * cardsLeft));
  var randNum = deckArr[randInt];
  deckArr.splice(randInt, 1);
  return randNum;
}

//Past, Present, Future spread
function pastPresentFuture() {
  $("img, #blurb, #card-name, #rev").remove();
  $("#pastPresentFuture").html('Another Reading?');

  for (var b = 1; b <= 3; b++) {
    var rand = randGen();
    
    var randInvert = Math.floor((Math.random() * 101));
    var randCardImg = riderWaite(rand);
    var randCardDisplayName = "<p id='card-name'>"+deck[rand].displayName+"</p>"
    
    if (randInvert >= 15) {
      $("#td-" + b).html(randCardImg);
      $("#td-display-name-" + b).append(randCardDisplayName);
    } else {
      $("#td-" + b).html(randCardImg).addClass("invert");
      $("#td-display-name-" + b).append(randCardDisplayName);
      $("#rev-" + b).html('<p id="rev"><i>Reversed</i></p>');
    }
  }
}

function autoCode() {
  createDeck();

  for (var q = 1; q <= 3; q++) {
    $("#td-" + q).html(backImg);
  }
}

//Shows all cards (used in debugging)
//function debug() {
//  createDeck();

//  for (var i = 1; i < Object.keys(deck).length; i++) {
//    console.log(deck[i].displayName);
//  }
//}