151 lines
3.8 KiB
TypeScript
151 lines
3.8 KiB
TypeScript
// Copyright 2021-2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { Moment } from 'moment';
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import moment from 'moment';
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import type { LocalizerType } from '../types/Util';
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import * as log from '../logging/log';
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import { DAY, HOUR, MINUTE, MONTH, WEEK } from './durations';
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const MAX_FORMAT_STRING_LENGTH = 50;
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type RawTimestamp = Readonly<number | Date | Moment>;
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export function isMoreRecentThan(timestamp: number, delta: number): boolean {
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return timestamp > Date.now() - delta;
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}
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export function isOlderThan(timestamp: number, delta: number): boolean {
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return timestamp <= Date.now() - delta;
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}
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export function isInPast(timestamp: number): boolean {
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return isOlderThan(timestamp, 0);
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}
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export function isInFuture(timestamp: number): boolean {
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return isMoreRecentThan(timestamp, 0);
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}
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export function toDayMillis(timestamp: number): number {
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return timestamp - (timestamp % DAY);
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}
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export const isSameDay = (a: RawTimestamp, b: RawTimestamp): boolean =>
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moment(a).isSame(b, 'day');
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export const isToday = (rawTimestamp: RawTimestamp): boolean =>
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isSameDay(rawTimestamp, Date.now());
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const isYesterday = (rawTimestamp: RawTimestamp): boolean =>
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isSameDay(rawTimestamp, moment().subtract(1, 'day'));
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// This sanitization is probably unnecessary, but we do it just in case someone translates
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// a super long format string and causes performance issues.
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function sanitizeFormatString(
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rawFormatString: string,
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fallback: string
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): string {
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if (rawFormatString.length > MAX_FORMAT_STRING_LENGTH) {
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log.error(
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`Format string ${JSON.stringify(
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rawFormatString
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)} is too long. Falling back to ${fallback}`
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);
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return fallback;
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}
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return rawFormatString;
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}
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export function formatDateTimeShort(
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i18n: LocalizerType,
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rawTimestamp: RawTimestamp
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): string {
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const timestamp = rawTimestamp.valueOf();
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const now = Date.now();
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const diff = now - timestamp;
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if (diff < MINUTE) {
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return i18n('justNow');
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}
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if (diff < HOUR) {
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return i18n('minutesAgo', [Math.floor(diff / MINUTE).toString()]);
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}
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const m = moment(timestamp);
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if (isToday(timestamp)) {
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return m.format('LT');
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}
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if (diff < WEEK && m.isSame(now, 'month')) {
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return m.format('ddd');
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}
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if (m.isSame(now, 'year')) {
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return m.format(i18n('timestampFormat_M') || 'MMM D');
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}
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return m.format('ll');
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}
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export function formatDateTimeLong(
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i18n: LocalizerType,
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rawTimestamp: RawTimestamp
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): string {
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let rawFormatString: string;
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if (isToday(rawTimestamp)) {
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rawFormatString = i18n('timestampFormat__long__today');
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} else if (isYesterday(rawTimestamp)) {
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rawFormatString = i18n('timestampFormat__long__yesterday');
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} else {
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rawFormatString = 'lll';
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}
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const formatString = sanitizeFormatString(rawFormatString, 'lll');
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return moment(rawTimestamp).format(formatString);
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}
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export function formatTime(
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i18n: LocalizerType,
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rawTimestamp: RawTimestamp
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): string {
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const timestamp = rawTimestamp.valueOf();
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const diff = Date.now() - timestamp;
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if (diff < MINUTE) {
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return i18n('justNow');
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}
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if (diff < HOUR) {
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return i18n('minutesAgo', [Math.floor(diff / MINUTE).toString()]);
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}
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return moment(timestamp).format('LT');
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}
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export function formatDate(
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i18n: LocalizerType,
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rawTimestamp: RawTimestamp
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): string {
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if (isToday(rawTimestamp)) {
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return i18n('today');
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}
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if (isYesterday(rawTimestamp)) {
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return i18n('yesterday');
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}
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const m = moment(rawTimestamp);
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const formatI18nKey =
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Math.abs(m.diff(Date.now())) < 6 * MONTH
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? 'TimelineDateHeader--date-in-last-6-months'
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: 'TimelineDateHeader--date-older-than-6-months';
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const rawFormatString = i18n(formatI18nKey);
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const formatString = sanitizeFormatString(rawFormatString, 'LL');
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return m.format(formatString);
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}
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