/*
  Created this script to automate betting on freebitco.in
  Open Multipy BTC game on freebitco.in
  Copy and paste code below into Chrome developer console and press Enter
 
  I accept donations :)
  1Coin5Nq5bYpst6nCie91CaSYuc9LjLKBn
 
  Thanks
*/

if (typeof observer != 'undefined') {
  observer.disconnect();
}

$('#double_your_btc_payout_multiplier').val("4.00");

var btnIdStr = 'double_your_btc_bet_hi_button';
var target = document.getElementById(btnIdStr);

var multiplier = 4;
var startBet = 3; // in satoshi, change this according to your balance
var betNumber = 1;

function nextBet() {
  return toSatoshi(getBet(betNumber++, multiplier)).toFixed(8);
}

function reset() {
  betNumber = 1;
  return nextBet();
}

function getBet(n, multiplier) {
    var base = 2 * (multiplier - 1);
    var a = Math.floor(n / (base-1));
    var m = n % (base-1);
    if(m != 0) {
        var bet = Math.pow(base, a) * m;
    } else {
        var bet = Math.pow(base, a-1) * (base-1);
    }
    return startBet * bet;
}

function toSatoshi(amount) {
  return amount / 100000000;
}

// create an observer instance
var observer = new MutationObserver(function (mutations) {
  mutations.forEach(function (mutation) {
    if (mutation.oldValue == 'disabled') {
     
      if($("#double_your_btc_bet_win").is(':visible')) {
        // win
        $('#double_your_btc_stake').val(reset());
      } else {
        // lose
        var next = nextBet();
        console.log(next)
        $('#double_your_btc_stake').val(next);
      }
     
      setTimeout(function () {
        $('#' + btnIdStr).click();
      }, 500);
    }
  });
});
// configuration of the observer:
var config = {
  attributes: true,
  childList: false,
  characterData: false,
  attributeOldValue: true
};
// pass in the target node, as well as the observer options
observer.observe(target, config);

// start the game
reset();
$('#double_your_btc_stake').val(reset());
$('#' + btnIdStr).click();