63 lines
1.7 KiB
TypeScript
63 lines
1.7 KiB
TypeScript
import moment from 'moment';
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import { LocalizerType } from '../types/Util';
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// Only applies in the english locales, but it ensures that the format
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// is what we want.
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function replaceSuffix(time: string) {
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return time.replace(/ PM$/, 'pm').replace(/ AM$/, 'am');
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}
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const getExtendedFormats = (i18n: LocalizerType) => ({
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y: 'lll',
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M: `${i18n('timestampFormat_M') || 'MMM D'} LT`,
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d: 'ddd LT',
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});
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const getShortFormats = (i18n: LocalizerType) => ({
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y: 'll',
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M: i18n('timestampFormat_M') || 'MMM D',
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d: 'ddd',
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});
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function isToday(timestamp: moment.Moment) {
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const today = moment().format('ddd');
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const targetDay = moment(timestamp).format('ddd');
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return today === targetDay;
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}
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function isYear(timestamp: moment.Moment) {
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const year = moment().format('YYYY');
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const targetYear = moment(timestamp).format('YYYY');
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return year === targetYear;
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}
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export function formatRelativeTime(
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rawTimestamp: number | Date,
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options: { extended?: boolean; i18n: LocalizerType }
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): string {
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const { extended, i18n } = options;
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const formats = extended ? getExtendedFormats(i18n) : getShortFormats(i18n);
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const timestamp = moment(rawTimestamp);
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const now = moment();
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const diff = moment.duration(now.diff(timestamp));
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if (diff.years() >= 1 || !isYear(timestamp)) {
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return replaceSuffix(timestamp.format(formats.y));
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}
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if (diff.months() >= 1 || diff.days() > 6) {
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return replaceSuffix(timestamp.format(formats.M));
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}
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if (diff.days() >= 1 || !isToday(timestamp)) {
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return replaceSuffix(timestamp.format(formats.d));
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}
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if (diff.hours() >= 1) {
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return i18n('hoursAgo', [String(diff.hours())]);
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}
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if (diff.minutes() >= 1) {
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return i18n('minutesAgo', [String(diff.minutes())]);
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}
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return i18n('justNow');
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}
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