84 lines
3.1 KiB
JavaScript
84 lines
3.1 KiB
JavaScript
// vim: set et sw=2 ts=2:
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//
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// This file is part of Moonfire NVR, a security camera network video recorder.
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// Copyright (C) 2018 The Moonfire NVR Authors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations including
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// the two.
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//
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// You must obey the GNU General Public License in all respects for all
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// of the code used other than OpenSSL. If you modify file(s) with this
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// exception, you may extend this exception to your version of the
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// file(s), but you are not obligated to do so. If you do not wish to do
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// so, delete this exception statement from your version. If you delete
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// this exception statement from all source files in the program, then
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// also delete it here.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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import TimeFormatter from './TimeFormatter';
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export const internalTimeFormat = 'YYYY-MM-DDTHH:mm:ss:FFFFFZ';
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/**
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* Specialized class similar to TimeFormatter but forcing a specific time format
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* for internal usage purposes.
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*/
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export default class TimeStamp90kFormatter {
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/**
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* Construct from just a timezone specification.
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*
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* @param {String} tz Timezone
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*/
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constructor(tz) {
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this.formatter_ = new TimeFormatter(internalTimeFormat, tz);
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}
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/**
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* Format a timestamp in 90k units using internal format.
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*
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* @param {Number} ts90k timestamp in 90,000ths of a second resolution
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* @return {String} Formatted timestamp
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*/
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formatTimeStamp90k(ts90k) {
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return this.formatter_.formatTimeStamp90k(ts90k);
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}
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/**
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* Given two timestamp return formatted versions of both, where the second
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* one may have been shortened if it falls on the same date as the first one.
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*
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* @param {Number} ts1 First timestamp in 90k units
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* @param {Number} ts2 Secodn timestamp in 90k units
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* @return {Array} Array with two elements: [ ts1Formatted, ts2Formatted ]
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*/
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formatSameDayShortened(ts1, ts2) {
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let ts1Formatted = this.formatTimeStamp90k(ts1);
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let ts2Formatted = this.formatTimeStamp90k(ts2);
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const timePos = this.formatter_.formatStr.indexOf('T');
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if (timePos != -1) {
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const datePortion = ts1Formatted.substr(0, timePos);
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ts1Formatted = datePortion + ' ' + ts1Formatted.substr(timePos + 1);
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if (ts2Formatted.startsWith(datePortion)) {
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ts2Formatted = ts2Formatted.substr(timePos + 1);
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}
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}
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return [ts1Formatted, ts2Formatted];
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}
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}
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