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"use strict";
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = getUTCISOWeekYear;
var _index = _interopRequireDefault(require("../../toDate/index.js"));
var _index2 = _interopRequireDefault(require("../requiredArgs/index.js"));
var _index3 = _interopRequireDefault(require("../startOfUTCISOWeek/index.js"));
function getUTCISOWeekYear(dirtyDate) {
(0, _index2.default)(1, arguments);
var date = (0, _index.default)(dirtyDate);
var year = date.getUTCFullYear();
var fourthOfJanuaryOfNextYear = new Date(0);
fourthOfJanuaryOfNextYear.setUTCFullYear(year + 1, 0, 4);
fourthOfJanuaryOfNextYear.setUTCHours(0, 0, 0, 0);
var startOfNextYear = (0, _index3.default)(fourthOfJanuaryOfNextYear);
var fourthOfJanuaryOfThisYear = new Date(0);
fourthOfJanuaryOfThisYear.setUTCFullYear(year, 0, 4);
fourthOfJanuaryOfThisYear.setUTCHours(0, 0, 0, 0);
var startOfThisYear = (0, _index3.default)(fourthOfJanuaryOfThisYear);
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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