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							87 lines
						
					
					
						
							3.2 KiB
						
					
					
				"use strict";
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Object.defineProperty(exports, "__esModule", {
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  value: true
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});
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exports.default = eachWeekOfInterval;
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var _index = _interopRequireDefault(require("../addWeeks/index.js"));
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var _index2 = _interopRequireDefault(require("../startOfWeek/index.js"));
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var _index3 = _interopRequireDefault(require("../toDate/index.js"));
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var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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 * @name eachWeekOfInterval
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 * @category Interval Helpers
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 * @summary Return the array of weeks within the specified time interval.
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 *
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 * @description
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 * Return the array of weeks within the specified time interval.
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 *
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 * ### v2.0.0 breaking changes:
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 *
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 * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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 *
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 * @param {Interval} interval - the interval. See [Interval]{@link docs/types/Interval}
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 * @param {Object} [options] - an object with options.
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 * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
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 * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday)
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 * @returns {Date[]} the array with starts of weeks from the week of the interval start to the week of the interval end
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 * @throws {TypeError} 1 argument required
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 * @throws {RangeError} `options.weekStartsOn` must be 0, 1, ..., 6
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 * @throws {RangeError} The start of an interval cannot be after its end
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 * @throws {RangeError} Date in interval cannot be `Invalid Date`
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 *
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 * @example
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 * // Each week within interval 6 October 2014 - 23 November 2014:
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 * var result = eachWeekOfInterval({
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 *   start: new Date(2014, 9, 6),
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 *   end: new Date(2014, 10, 23)
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 * })
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 * //=> [
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 * //   Sun Oct 05 2014 00:00:00,
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 * //   Sun Oct 12 2014 00:00:00,
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 * //   Sun Oct 19 2014 00:00:00,
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 * //   Sun Oct 26 2014 00:00:00,
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 * //   Sun Nov 02 2014 00:00:00,
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 * //   Sun Nov 09 2014 00:00:00,
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 * //   Sun Nov 16 2014 00:00:00,
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 * //   Sun Nov 23 2014 00:00:00
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 * // ]
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 */
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function eachWeekOfInterval(dirtyInterval, options) {
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  (0, _index4.default)(1, arguments);
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  var interval = dirtyInterval || {};
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  var startDate = (0, _index3.default)(interval.start);
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  var endDate = (0, _index3.default)(interval.end);
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  var endTime = endDate.getTime(); // Throw an exception if start date is after end date or if any date is `Invalid Date`
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  if (!(startDate.getTime() <= endTime)) {
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    throw new RangeError('Invalid interval');
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  }
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  var startDateWeek = (0, _index2.default)(startDate, options);
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  var endDateWeek = (0, _index2.default)(endDate, options); // Some timezones switch DST at midnight, making start of day unreliable in these timezones, 3pm is a safe bet
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  startDateWeek.setHours(15);
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  endDateWeek.setHours(15);
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  endTime = endDateWeek.getTime();
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  var weeks = [];
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  var currentWeek = startDateWeek;
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  while (currentWeek.getTime() <= endTime) {
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    currentWeek.setHours(0);
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    weeks.push((0, _index3.default)(currentWeek));
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    currentWeek = (0, _index.default)(currentWeek, 1);
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    currentWeek.setHours(15);
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  }
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  return weeks;
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}
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module.exports = exports.default; |