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"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = setDay;
var _index = _interopRequireDefault(require("../addDays/index.js"));
var _index2 = _interopRequireDefault(require("../toDate/index.js"));
var _index3 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
var _index5 = require("../_lib/defaultOptions/index.js");
/**
 * @name setDay
 * @category Weekday Helpers
 * @summary Set the day of the week to the given date.
 *
 * @description
 * Set the day of the week to the given date.
 *
 * @param {Date|Number} date - the date to be changed
 * @param {Number} day - the day of the week of the new date
 * @param {Object} [options] - an object with options.
 * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
 * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday)
 * @returns {Date} the new date with the day of the week set
 * @throws {TypeError} 2 arguments required
 * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6
 *
 * @example
 * // Set week day to Sunday, with the default weekStartsOn of Sunday:
 * const result = setDay(new Date(2014, 8, 1), 0)
 * //=> Sun Aug 31 2014 00:00:00
 *
 * @example
 * // Set week day to Sunday, with a weekStartsOn of Monday:
 * const result = setDay(new Date(2014, 8, 1), 0, { weekStartsOn: 1 })
 * //=> Sun Sep 07 2014 00:00:00
 */
function setDay(dirtyDate, dirtyDay, options) {
  var _ref, _ref2, _ref3, _options$weekStartsOn, _options$locale, _options$locale$optio, _defaultOptions$local, _defaultOptions$local2;
  (0, _index4.default)(2, arguments);
  var defaultOptions = (0, _index5.getDefaultOptions)();
  var weekStartsOn = (0, _index3.default)((_ref = (_ref2 = (_ref3 = (_options$weekStartsOn = options === null || options === void 0 ? void 0 : options.weekStartsOn) !== null && _options$weekStartsOn !== void 0 ? _options$weekStartsOn : options === null || options === void 0 ? void 0 : (_options$locale = options.locale) === null || _options$locale === void 0 ? void 0 : (_options$locale$optio = _options$locale.options) === null || _options$locale$optio === void 0 ? void 0 : _options$locale$optio.weekStartsOn) !== null && _ref3 !== void 0 ? _ref3 : defaultOptions.weekStartsOn) !== null && _ref2 !== void 0 ? _ref2 : (_defaultOptions$local = defaultOptions.locale) === null || _defaultOptions$local === void 0 ? void 0 : (_defaultOptions$local2 = _defaultOptions$local.options) === null || _defaultOptions$local2 === void 0 ? void 0 : _defaultOptions$local2.weekStartsOn) !== null && _ref !== void 0 ? _ref : 0);

  // Test if weekStartsOn is between 0 and 6 _and_ is not NaN
  if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) {
    throw new RangeError('weekStartsOn must be between 0 and 6 inclusively');
  }
  var date = (0, _index2.default)(dirtyDate);
  var day = (0, _index3.default)(dirtyDay);
  var currentDay = date.getDay();
  var remainder = day % 7;
  var dayIndex = (remainder + 7) % 7;
  var delta = 7 - weekStartsOn;
  var diff = day < 0 || day > 6 ? day - (currentDay + delta) % 7 : (dayIndex + delta) % 7 - (currentDay + delta) % 7;
  return (0, _index.default)(date, diff);
}
module.exports = exports.default;