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52 lines
2.2 KiB
52 lines
2.2 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 = getUTCWeekYear;
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var _index = _interopRequireDefault(require("../toInteger/index.js"));
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var _index2 = _interopRequireDefault(require("../../toDate/index.js"));
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var _index3 = _interopRequireDefault(require("../startOfUTCWeek/index.js"));
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var _index4 = _interopRequireDefault(require("../requiredArgs/index.js"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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// This function will be a part of public API when UTC function will be implemented.
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// See issue: https://github.com/date-fns/date-fns/issues/376
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function getUTCWeekYear(dirtyDate, dirtyOptions) {
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(0, _index4.default)(1, arguments);
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var date = (0, _index2.default)(dirtyDate, dirtyOptions);
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var year = date.getUTCFullYear();
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var options = dirtyOptions || {};
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var locale = options.locale;
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var localeFirstWeekContainsDate = locale && locale.options && locale.options.firstWeekContainsDate;
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var defaultFirstWeekContainsDate = localeFirstWeekContainsDate == null ? 1 : (0, _index.default)(localeFirstWeekContainsDate);
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var firstWeekContainsDate = options.firstWeekContainsDate == null ? defaultFirstWeekContainsDate : (0, _index.default)(options.firstWeekContainsDate); // Test if weekStartsOn is between 1 and 7 _and_ is not NaN
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if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) {
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throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively');
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}
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var firstWeekOfNextYear = new Date(0);
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firstWeekOfNextYear.setUTCFullYear(year + 1, 0, firstWeekContainsDate);
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firstWeekOfNextYear.setUTCHours(0, 0, 0, 0);
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var startOfNextYear = (0, _index3.default)(firstWeekOfNextYear, dirtyOptions);
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var firstWeekOfThisYear = new Date(0);
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firstWeekOfThisYear.setUTCFullYear(year, 0, firstWeekContainsDate);
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firstWeekOfThisYear.setUTCHours(0, 0, 0, 0);
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var startOfThisYear = (0, _index3.default)(firstWeekOfThisYear, dirtyOptions);
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if (date.getTime() >= startOfNextYear.getTime()) {
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return year + 1;
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} else if (date.getTime() >= startOfThisYear.getTime()) {
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return year;
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} else {
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return year - 1;
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}
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}
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module.exports = exports.default; |