59 lines
1.9 KiB
TypeScript
59 lines
1.9 KiB
TypeScript
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// (C) Copyright 2015 Martin Dougiamas
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import { Pipe, PipeTransform } from '@angular/core';
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import { CoreLoggerProvider } from '../providers/logger';
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/**
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* Filter to format a timestamp to a locale string. Timestamp can be in seconds or milliseconds.
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*/
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@Pipe({
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name: 'coreToLocaleString',
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})
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export class CoreToLocaleStringPipe implements PipeTransform {
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protected logger;
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constructor(logger: CoreLoggerProvider) {
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this.logger = logger.getInstance('CoreToLocaleStringPipe');
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}
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/**
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* Format a timestamp to a locale string.
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*
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* @param {number|string} timestamp The timestamp (can be in seconds or milliseconds).
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* @return {string} Formatted time.
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*/
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transform(timestamp: number|string) : string {
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if (typeof timestamp == 'string') {
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// Convert the value to a number.
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const numberTimestamp = parseInt(timestamp, 10);
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if (isNaN(numberTimestamp)) {
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this.logger.error('Invalid value received', timestamp);
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return timestamp;
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}
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timestamp = numberTimestamp;
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}
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if (timestamp < 0) {
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// Date not valid.
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return '';
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}
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if (timestamp < 100000000000) {
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// Timestamp is in seconds, convert it to milliseconds.
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timestamp = timestamp * 1000;
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}
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return new Date(timestamp).toLocaleString();
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}
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}
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