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