project-lvl1-s132/dist/games/balance.js

Brain Games

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _start = require('../start');

var _start2 = _interopRequireDefault(_start);

var _lib = require('../lib');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var rulesMessage = 'Balance the given number.';

var limitMaxNumber = 1000;

var balance = function balance(num) {
  var str = num.toString();

  var input = str.split('');
  var inputLength = input.length;
  var inputDigit = input.map(function (val) {
    return +val;
  });
  var sum = inputDigit.reduce(function (acc, val) {
    return acc + val;
  }, 0);
  var evenDigit = Math.floor(sum / inputLength);
  var remainder = sum % inputLength;

  var output = [];
  while (remainder > 0) {
    output.push(evenDigit + 1);
    remainder -= 1;
  }
  while (inputLength > output.length) {
    output.push(evenDigit);
  }

  return +output.reverse().join('');
};

var getQuestionAnswerPair = function getQuestionAnswerPair() {
  var question = (0, _lib.getRandomInt)(limitMaxNumber);
  var correctAnswer = balance(question).toString();

  return { question: question, correctAnswer: correctAnswer };
};

exports.default = function () {
  return (0, _start2.default)(rulesMessage, getQuestionAnswerPair);
};
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