andreirk/project-lvl1-s280

import readlineSync from 'readline-sync';
import getNameFromUser from '..';

const calculateGCD = (a, b) => {
  if (!b) {
    return a;
  }
  return calculateGCD(b, a % b);
};

const game = (numOfSteps) => {
  console.log('What is the result of the expression?.\n\n');
  const userName = getNameFromUser();

  for (let i = 0; i < numOfSteps; i += 1) {
    const num1 = Math.ceil(Math.random() * 100);
    const num2 = Math.ceil(Math.random() * 100);

    const userAnswer = parseInt(readlineSync.question(`Question: ${num1} ${num2} \n`), 10);
    const correctAnswer = calculateGCD(num1, num2);
    console.log(`You answer: ${userAnswer}`);
    if (userAnswer === correctAnswer) {
      console.log('Correct!');
    } else {
      console.log(`${userAnswer} is wrong answer ;(. Correct answer was ${correctAnswer}`);
      console.log(`Let's try again, ${userName}!`);
      return;
    }
  }
  console.log(`Congratulations, ${userName}!`);
};

export default game;