34 lines
624 B
TypeScript
34 lines
624 B
TypeScript
// Copyright 2019-2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { padStart } from 'lodash';
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export function getIncrement(length: number): number {
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if (length < 0) {
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return 1000;
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}
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return Math.ceil(length / 12);
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}
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export function getTimerBucket(
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expiration: number | undefined,
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length: number
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): string {
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if (!expiration) {
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return '60';
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}
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const delta = expiration - Date.now();
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if (delta < 0) {
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return '00';
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}
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if (delta > length) {
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return '60';
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}
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const bucket = Math.round((delta / length) * 12);
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return padStart(String(bucket * 5), 2, '0');
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}
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