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41 lines
1.6 KiB
TypeScript
41 lines
1.6 KiB
TypeScript
/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { getTimeFormatter } from '@superset-ui/core';
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// Cal-Heatmap provides local timestamps (UTC shifted by the browser's timezone
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// offset). We subtract that offset so the formatter displays the correct UTC
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// date regardless of the browser's timezone.
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export const getFormattedUTCTime = (
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ts: number | string,
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timeFormat?: string,
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) => {
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const date = new Date(ts);
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const offset = date.getTimezoneOffset() * 60 * 1000;
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return getTimeFormatter(timeFormat)(date.getTime() - offset);
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};
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// The vendor library interprets timestamps as local time but the backend sends UTC timestamps.
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// That's why we need to add the offset
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export const convertUTCTimestampToLocal = (utcTimestamp: number): number => {
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const date = new Date(utcTimestamp);
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const offsetMs = date.getTimezoneOffset() * 60 * 1000;
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return utcTimestamp + offsetMs;
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};
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