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+/*
+ This file is part of GNU Taler
+ (C) 2022 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 {
+ AmountJson,
+ Amounts,
+ PreparePayResult,
+ PreparePayResultType,
+} from "@gnu-taler/taler-util";
+import { Fragment, h, VNode } from "preact";
+import { useState } from "preact/hooks";
+import { Amount } from "./Amount.js";
+import { Part } from "./Part.js";
+import { QR } from "./QR.js";
+import { LinkSuccess, WarningBox } from "./styled/index.js";
+import { useTranslationContext } from "../context/translation.js";
+import { Button } from "../mui/Button.js";
+import { ButtonHandler } from "../mui/handlers.js";
+import { assertUnreachable } from "../utils/index.js";
+
+interface Props {
+ payStatus: PreparePayResult;
+ payHandler: ButtonHandler | undefined;
+ balance: AmountJson | undefined;
+ uri: string;
+ amount: AmountJson;
+ goToWalletManualWithdraw: (currency: string) => Promise<void>;
+}
+
+export function PaymentButtons({
+ payStatus,
+ uri,
+ payHandler,
+ balance,
+ amount,
+ goToWalletManualWithdraw,
+}: Props): VNode {
+ const { i18n } = useTranslationContext();
+ if (payStatus.status === PreparePayResultType.PaymentPossible) {
+ const privateUri = `${uri}&n=${payStatus.noncePriv}`;
+
+ return (
+ <Fragment>
+ <section>
+ <Button
+ variant="contained"
+ color="success"
+ onClick={payHandler?.onClick}
+ >
+ <i18n.Translate>
+ Pay &nbsp;
+ {<Amount value={amount} />}
+ </i18n.Translate>
+ </Button>
+ </section>
+ <PayWithMobile uri={privateUri} />
+ </Fragment>
+ );
+ }
+
+ if (payStatus.status === PreparePayResultType.InsufficientBalance) {
+ let BalanceMessage = "";
+ if (!balance) {
+ BalanceMessage = i18n.str`You have no balance for this currency. Withdraw digital cash first.`;
+ } else {
+ const balanceShouldBeEnough = Amounts.cmp(balance, amount) !== -1;
+ if (balanceShouldBeEnough) {
+ BalanceMessage = i18n.str`Could not find enough coins to pay. Even if you have enough ${balance.currency} some restriction may apply.`;
+ } else {
+ BalanceMessage = i18n.str`Your current balance is not enough.`;
+ }
+ }
+ const uriPrivate = `${uri}&n=${payStatus.noncePriv}`;
+
+ return (
+ <Fragment>
+ <section>
+ <WarningBox>{BalanceMessage}</WarningBox>
+ </section>
+ <section>
+ <Button
+ variant="contained"
+ color="success"
+ onClick={() => goToWalletManualWithdraw(Amounts.stringify(amount))}
+ >
+ <i18n.Translate>Get digital cash</i18n.Translate>
+ </Button>
+ </section>
+ <PayWithMobile uri={uriPrivate} />
+ </Fragment>
+ );
+ }
+ if (payStatus.status === PreparePayResultType.AlreadyConfirmed) {
+ return (
+ <Fragment>
+ <section>
+ {payStatus.paid && payStatus.contractTerms.fulfillment_message && (
+ <Part
+ title={<i18n.Translate>Merchant message</i18n.Translate>}
+ text={payStatus.contractTerms.fulfillment_message}
+ kind="neutral"
+ />
+ )}
+ </section>
+ {!payStatus.paid && <PayWithMobile uri={uri} />}
+ </Fragment>
+ );
+ }
+
+ assertUnreachable(payStatus);
+}
+
+function PayWithMobile({ uri }: { uri: string }): VNode {
+ const { i18n } = useTranslationContext();
+
+ const [showQR, setShowQR] = useState<boolean>(false);
+
+ return (
+ <section>
+ <LinkSuccess upperCased onClick={() => setShowQR((qr) => !qr)}>
+ {!showQR ? (
+ <i18n.Translate>Pay with a mobile phone</i18n.Translate>
+ ) : (
+ <i18n.Translate>Hide QR</i18n.Translate>
+ )}
+ </LinkSuccess>
+ {showQR && (
+ <div>
+ <QR text={uri} />
+ <i18n.Translate>
+ Scan the QR code or &nbsp;
+ <a href={uri}>
+ <i18n.Translate>click here</i18n.Translate>
+ </a>
+ </i18n.Translate>
+ </div>
+ )}
+ </section>
+ );
+}