"use strict";
exports.setISODay = setISODay;
var _index = require("./addDays.js");
var _index2 = require("./getISODay.js");
var _index3 = require("./toDate.js");

/**
 * @name setISODay
 * @category Weekday Helpers
 * @summary Set the day of the ISO week to the given date.
 *
 * @description
 * Set the day of the ISO week to the given date.
 * ISO week starts with Monday.
 * 7 is the index of Sunday, 1 is the index of Monday etc.
 *
 * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
 *
 * @param date - The date to be changed
 * @param day - The day of the ISO week of the new date
 *
 * @returns The new date with the day of the ISO week set
 *
 * @example
 * // Set Sunday to 1 September 2014:
 * const result = setISODay(new Date(2014, 8, 1), 7)
 * //=> Sun Sep 07 2014 00:00:00
 */
function setISODay(date, day) {
  const _date = (0, _index3.toDate)(date);
  const currentDay = (0, _index2.getISODay)(_date);
  const diff = day - currentDay;
  return (0, _index.addDays)(_date, diff);
}