import toDate from '../toDate/index.js'

/**
 * @name isSameMonth
 * @category Month Helpers
 * @summary Are the given dates in the same month?
 *
 * @description
 * Are the given dates in the same month?
 *
 *
 * ### v2.0.0 breaking changes:
 *
 * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
 *
 * @param {Date|String|Number} dateLeft - the first date to check
 * @param {Date|String|Number} dateRight - the second date to check
 * @param {Options} [options] - the object with options. See [Options]{@link https://date-fns.org/docs/Options}
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Boolean} the dates are in the same month
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // Are 2 September 2014 and 25 September 2014 in the same month?
 * var result = isSameMonth(new Date(2014, 8, 2), new Date(2014, 8, 25))
 * //=> true
 */
export default function isSameMonth(
  dirtyDateLeft,
  dirtyDateRight,
  dirtyOptions
) {
  if (arguments.length < 2) {
    throw new TypeError(
      '2 arguments required, but only ' + arguments.length + ' present'
    )
  }

  var dateLeft = toDate(dirtyDateLeft, dirtyOptions)
  var dateRight = toDate(dirtyDateRight, dirtyOptions)
  return (
    dateLeft.getFullYear() === dateRight.getFullYear() &&
    dateLeft.getMonth() === dateRight.getMonth()
  )
}
