wallet-core/packages/taler-wallet-webextension/src/wallet/ReserveCreated.tsx

import {
  AmountJson,
  parsePaytoUri,
  Amounts,
  segwitMinAmount,
  generateFakeSegwitAddress,
} from "@gnu-taler/taler-util";
import { Fragment, h, VNode } from "preact";
import { BankDetailsByPaytoType } from "../components/BankDetailsByPaytoType";
import { QR } from "../components/QR";
import { ButtonDestructive, WarningBox } from "../components/styled";
import { useTranslationContext } from "../context/translation";
import { amountToString } from "../utils/index";
export interface Props {
  reservePub: string;
  payto: string;
  exchangeBaseUrl: string;
  amount: AmountJson;
  onCancel: () => void;
}

export function ReserveCreated({
  reservePub,
  payto,
  onCancel,
  exchangeBaseUrl,
  amount,
}: Props): VNode {
  const { i18n } = useTranslationContext();
  const paytoURI = parsePaytoUri(payto);
  if (!paytoURI) {
    return (
      <div>
        <i18n.Translate>
          could not parse payto uri from exchange {payto}
        </i18n.Translate>
      </div>
    );
  }
  function TransferDetails(): VNode {
    if (!paytoURI) return <Fragment />;
    if (paytoURI.targetType === "bitcoin") {
      const { segwitAddr1, segwitAddr2 } = generateFakeSegwitAddress(
        reservePub,
        paytoURI.targetPath,
      );
      const min = segwitMinAmount();
      return (
        <section>
          <p>
            <i18n.Translate>
              Bitcoin exchange need a transaction with 3 output, one output is
              the exchange account and the other two are segwit fake address for
              metadata with an minimum amount. Reserve pub : {reservePub}
            </i18n.Translate>
          </p>
          <p>
            <i18n.Translate>
              In bitcoincore wallet use 'Add Recipient' button to add two
              additional recipient and copy adresses and amounts
            </i18n.Translate>
            <ul>
              <li>
                {paytoURI.targetPath} {Amounts.stringifyValue(amount)} BTC
              </li>
              <li>
                {segwitAddr1} {Amounts.stringifyValue(min)} BTC
              </li>
              <li>
                {segwitAddr2} {Amounts.stringifyValue(min)} BTC
              </li>
            </ul>
            <i18n.Translate>
              In Electrum wallet paste the following three lines in 'Pay to'
              field :
            </i18n.Translate>
            <ul>
              <li>
                {paytoURI.targetPath},{Amounts.stringifyValue(amount)}
              </li>
              <li>
                {segwitAddr1},{Amounts.stringifyValue(min)}
              </li>
              <li>
                {segwitAddr2},{Amounts.stringifyValue(min)}
              </li>
            </ul>
            <i18n.Translate>
              Make sure the amount show{" "}
              {Amounts.stringifyValue(Amounts.sum([amount, min, min]).amount)}{" "}
              BTC, else you have to change the base unit to BTC
            </i18n.Translate>
          </p>
        </section>
      );
    }
    return (
      <section>
        <BankDetailsByPaytoType
          amount={amountToString(amount)}
          exchangeBaseUrl={exchangeBaseUrl}
          payto={paytoURI}
          subject={reservePub}
        />
        <p>
          <WarningBox>
            <i18n.Translate>
              Make sure to use the correct subject, otherwise the money will not
              arrive in this wallet.
            </i18n.Translate>
          </WarningBox>
        </p>
      </section>
    );
  }

  return (
    <Fragment>
      <section>
        <h1>
          <i18n.Translate>Exchange is ready for withdrawal</i18n.Translate>
        </h1>
        <p>
          <i18n.Translate>
            To complete the process you need to wire{` `}
            <b>{amountToString(amount)}</b> to the exchange bank account
          </i18n.Translate>
        </p>
      </section>
      <TransferDetails />
      <section>
        <p>
          <i18n.Translate>
            Alternative, you can also scan this QR code or open{" "}
            <a href={payto}>this link</a> if you have a banking app installed
            that supports RFC 8905
          </i18n.Translate>
        </p>
        <QR text={payto} />
      </section>
      <footer>
        <div />
        <ButtonDestructive onClick={onCancel}>
          <i18n.Translate>Cancel withdrawal</i18n.Translate>
        </ButtonDestructive>
      </footer>
    </Fragment>
  );
}