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/*
This file is part of GNU Taler
(C) 2022-2024 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import { AbsoluteTime, Duration } from "@gnu-taler/taler-util";
import { useTranslationContext } from "@gnu-taler/web-util/browser";
import {
formatISO,
format,
formatDuration,
intervalToDuration,
} from "date-fns";
import { Fragment, h, VNode } from "preact";
/**
*
* @param timestamp time to be formatted
* @param relative duration threshold, if the difference is lower
* the timestamp will be formatted as relative time from "now"
*
* @returns
*/
export function Time({
timestamp,
relative,
format: formatString,
}: {
timestamp: AbsoluteTime | undefined;
relative?: Duration;
format: string;
}): VNode {
const { i18n, dateLocale } = useTranslationContext();
if (!timestamp) return <Fragment />;
if (timestamp.t_ms === "never") {
return <time>{i18n.str`never`}</time>;
}
const now = AbsoluteTime.now();
const diff = AbsoluteTime.difference(now, timestamp);
if (relative && now.t_ms !== "never" && Duration.cmp(diff, relative) === -1) {
const d = intervalToDuration({
start: now.t_ms,
end: timestamp.t_ms,
});
d.seconds = 0;
const duration = formatDuration(d, { locale: dateLocale });
const isFuture = AbsoluteTime.cmp(now, timestamp) < 0;
if (isFuture) {
return (
<time dateTime={formatISO(timestamp.t_ms)}>
<i18n.Translate>in {duration}</i18n.Translate>
</time>
);
} else {
return (
<time dateTime={formatISO(timestamp.t_ms)}>
<i18n.Translate>{duration} ago</i18n.Translate>
</time>
);
}
}
return (
<time dateTime={formatISO(timestamp.t_ms)}>
{format(timestamp.t_ms, formatString, { locale: dateLocale })}
</time>
);
}
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