BAB script Games Since N

var config = {
    n: { value: '1', type: 'text', label: 'Rounds since last game >= multiplier (n)'},
    t: { value: 2, type: 'multiplier', label: 'Multiplier (t)'},
    wager: { value: 0, type: 'balance', label: 'Wager'}
};

// Globals
const n = parseInt(config.n.value);
const t = config.t.value;
const wager = config.wager.value;
let m = 0;

// Ensure user input makes sense
if(isNaN(n)) {
    stop('n must be an integer');
} else if(n < 0) {
    stop('n cannot be less than 0');
} else if(n === 0) {
    log('Warning: n is 0, the script will be betting on every game');
} else if(t > 1000) {
    log('Warning: You are using a very high multiplier');
    log('Using large values can cause the script to freeze temporarily');
}

// Recursive function to find the number of games since a multiplier
function findM(m, hash) {
  return new Promise((resolve, reject) => {
    gameResultFromHash(hash).then((result) => {
      if(result >= t) {
        resolve(m);
      } else {
        SHA256(hash).then((newHash) => {
          findM(m + 1, newHash).then((m) => {
            resolve(m);
          });
        });
      }
    });
  });
}

// Place a bet with the specified options
function placeBet() {
  log('Placing bet');
  checkBalance();
  engine.bet(wager, t);
}

// Pre-check before betting
function checkBalance() {
  if(userInfo.balance < config.wager.value) {
    stop('Insufficient balance');
  }
}

// Happens after the initial "sync", and after every game ending
function checkParams(initial) {
  if(engine.history.first().bust >= t && !initial) {
    log(`Multiplier for finished game was >= ${t}x, resetting count. `);
    m = 0;
    log(`${n-m} round(s) of multipliers < ${t}x before betting remaining`);
  } else {
    if(!initial) m++;
    if(m >= n) {
      placeBet();
      m = 0;
    } else {
      log(`${n-m} round(s) of multipliers < ${t}x before betting remaining`);
    }
  }
}

findM(0, engine.history.first().hash).then((value) => {
  // m is global here
  m = value;
  log(`${m} game(s) since multiplier of or at least ${t}x`);
  checkParams(true);
  // Set up event listeners to continue the script after the initial stage
  engine.on('GAME_ENDED', () => {
    checkParams();
  });
});