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/*
This file is part of TALER
(C) 2017 GNUnet e.V.
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.
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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* Page shown to the user to accept or ignore a tip from a merchant.
*
* @author sebasjm
*/
import {
amountFractionalBase,
AmountJson,
Amounts,
PrepareTipResult,
} from "@gnu-taler/taler-util";
import { h, VNode } from "preact";
import { useEffect, useState } from "preact/hooks";
import { Loading } from "../components/Loading.js";
import { Title } from "../components/styled/index.js";
import { useTranslationContext } from "../context/translation.js";
import * as wxApi from "../wxApi.js";
interface Props {
talerTipUri?: string;
}
export interface ViewProps {
prepareTipResult: PrepareTipResult;
onAccept: () => void;
onIgnore: () => void;
}
export function View({
prepareTipResult,
onAccept,
onIgnore,
}: ViewProps): VNode {
const { i18n } = useTranslationContext();
return (
<section class="main">
<Title>GNU Taler Wallet</Title>
<article class="fade">
{prepareTipResult.accepted ? (
<span>
<i18n.Translate>
Tip from <code>{prepareTipResult.merchantBaseUrl}</code> accepted.
Check your transactions list for more details.
</i18n.Translate>
</span>
) : (
<div>
<p>
<i18n.Translate>
The merchant <code>{prepareTipResult.merchantBaseUrl}</code> is
offering you a tip of{" "}
<strong>
<AmountView amount={prepareTipResult.tipAmountEffective} />
</strong>{" "}
via the exchange <code>{prepareTipResult.exchangeBaseUrl}</code>
</i18n.Translate>
</p>
<button onClick={onAccept}>
<i18n.Translate>Accept tip</i18n.Translate>
</button>
<button onClick={onIgnore}>
<i18n.Translate>Ignore</i18n.Translate>
</button>
</div>
)}
</article>
</section>
);
}
export function TipPage({ talerTipUri }: Props): VNode {
const { i18n } = useTranslationContext();
const [updateCounter, setUpdateCounter] = useState<number>(0);
const [prepareTipResult, setPrepareTipResult] = useState<
PrepareTipResult | undefined
>(undefined);
const [tipIgnored, setTipIgnored] = useState(false);
useEffect(() => {
if (!talerTipUri) return;
const doFetch = async (): Promise<void> => {
const p = await wxApi.prepareTip({ talerTipUri });
setPrepareTipResult(p);
};
doFetch();
}, [talerTipUri, updateCounter]);
const doAccept = async (): Promise<void> => {
if (!prepareTipResult) {
return;
}
await wxApi.acceptTip({ walletTipId: prepareTipResult?.walletTipId });
setUpdateCounter(updateCounter + 1);
};
const doIgnore = (): void => {
setTipIgnored(true);
};
if (!talerTipUri) {
return (
<span>
<i18n.Translate>missing tip uri</i18n.Translate>
</span>
);
}
if (tipIgnored) {
return (
<span>
<i18n.Translate>You've ignored the tip.</i18n.Translate>
</span>
);
}
if (!prepareTipResult) {
return <Loading />;
}
return (
<View
prepareTipResult={prepareTipResult}
onAccept={doAccept}
onIgnore={doIgnore}
/>
);
}
function renderAmount(amount: AmountJson | string): VNode {
let a;
if (typeof amount === "string") {
a = Amounts.parse(amount);
} else {
a = amount;
}
if (!a) {
return <span>(invalid amount)</span>;
}
const x = a.value + a.fraction / amountFractionalBase;
return (
<span>
{x} {a.currency}
</span>
);
}
function AmountView({ amount }: { amount: AmountJson | string }): VNode {
return renderAmount(amount);
}
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