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datetimeutil.js
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datetimeutil.js
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/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
const dayjs = require('dayjs');
const utc = require('dayjs/plugin/utc');
dayjs.extend(utc);
const quarterOfYear = require('dayjs/plugin/quarterOfYear');
dayjs.extend(quarterOfYear);
const minMax = require('dayjs/plugin/minMax');
dayjs.extend(minMax);
const duration = require('dayjs/plugin/duration');
dayjs.extend(duration);
/**
* Ensures there is a proper current time
*
* @param {string} [currentTime] - the definition of 'now'
* @param {number} [utcOffset] - UTC Offset for this execution
* @returns {object} if valid, the dayjs object for the current time
*/
function setCurrentTime(currentTime, utcOffset) {
// Default UTC offset to local time
const utcOffsetResolved = typeof utcOffset === 'number' ? utcOffset : dayjs().utcOffset();
const currentTimeUTC = currentTime ? dayjs.utc(currentTime) : dayjs().utc();
if (!currentTimeUTC.isValid()) {
throw new Error(`Current time '${currentTime}' is not in standard UTC format`);
}
const currentTimeResolved = currentTimeUTC.utcOffset(utcOffsetResolved);
if (!currentTimeResolved.isValid()) {
throw new Error(`Cannot set current time to '${currentTime}' with UTC offset '${utcOffset}'`);
}
return {
currentTime: currentTimeResolved,
utcOffset: utcOffsetResolved
};
}
module.exports = { setCurrentTime };