hugoWebsite/node_modules/date-fns/esm/setWeekYear/index.js

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2022-10-29 00:20:35 +02:00
import differenceInCalendarDays from "../differenceInCalendarDays/index.js";
import startOfWeekYear from "../startOfWeekYear/index.js";
import toDate from "../toDate/index.js";
import toInteger from "../_lib/toInteger/index.js";
import requiredArgs from "../_lib/requiredArgs/index.js";
import { getDefaultOptions } from "../_lib/defaultOptions/index.js";
/**
* @name setWeekYear
* @category Week-Numbering Year Helpers
* @summary Set the local week-numbering year to the given date.
*
* @description
* Set the local week-numbering year to the given date,
* saving the week number and the weekday number.
* The exact calculation depends on the values of
* `options.weekStartsOn` (which is the index of the first day of the week)
* and `options.firstWeekContainsDate` (which is the day of January, which is always in
* the first week of the week-numbering year)
*
* Week numbering: https://en.wikipedia.org/wiki/Week#Week_numbering
*
* @param {Date|Number} date - the date to be changed
* @param {Number} weekYear - the local week-numbering year 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)
* @param {1|2|3|4|5|6|7} [options.firstWeekContainsDate=1] - the day of January, which is always in the first week of the year
* @returns {Date} the new date with the local week-numbering year set
* @throws {TypeError} 2 arguments required
* @throws {RangeError} `options.weekStartsOn` must be between 0 and 6
* @throws {RangeError} `options.firstWeekContainsDate` must be between 1 and 7
*
* @example
* // Set the local week-numbering year 2004 to 2 January 2010 with default options:
* const result = setWeekYear(new Date(2010, 0, 2), 2004)
* //=> Sat Jan 03 2004 00:00:00
*
* @example
* // Set the local week-numbering year 2004 to 2 January 2010,
* // if Monday is the first day of week
* // and 4 January is always in the first week of the year:
* const result = setWeekYear(new Date(2010, 0, 2), 2004, {
* weekStartsOn: 1,
* firstWeekContainsDate: 4
* })
* //=> Sat Jan 01 2005 00:00:00
*/
export default function setWeekYear(dirtyDate, dirtyWeekYear, options) {
var _ref, _ref2, _ref3, _options$firstWeekCon, _options$locale, _options$locale$optio, _defaultOptions$local, _defaultOptions$local2;
requiredArgs(2, arguments);
var defaultOptions = getDefaultOptions();
var firstWeekContainsDate = toInteger((_ref = (_ref2 = (_ref3 = (_options$firstWeekCon = options === null || options === void 0 ? void 0 : options.firstWeekContainsDate) !== null && _options$firstWeekCon !== void 0 ? _options$firstWeekCon : options === null || options === void 0 ? void 0 : (_options$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.firstWeekContainsDate) !== null && _ref3 !== void 0 ? _ref3 : defaultOptions.firstWeekContainsDate) !== 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.firstWeekContainsDate) !== null && _ref !== void 0 ? _ref : 1);
var date = toDate(dirtyDate);
var weekYear = toInteger(dirtyWeekYear);
var diff = differenceInCalendarDays(date, startOfWeekYear(date, options));
var firstWeek = new Date(0);
firstWeek.setFullYear(weekYear, 0, firstWeekContainsDate);
firstWeek.setHours(0, 0, 0, 0);
date = startOfWeekYear(firstWeek, options);
date.setDate(date.getDate() + diff);
return date;
}