/*
 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/>
 */

/**
 *
 * @author Sebastian Javier Marchano (sebasjm)
 */

import { parseTalerUri, TalerUri, TalerUriAction } from "@gnu-taler/taler-util";
import { useTranslationContext } from "@gnu-taler/web-util/browser";
import { Fragment, h, VNode } from "preact";
import { Title } from "../components/styled/index.js";
import { Button } from "../mui/Button.js";
import { platform } from "../platform/foreground.js";

export interface Props {
  url: string;
  onDismiss: () => Promise<void>;
}

function ContentByUriType({
  uri,
  onConfirm,
}: {
  uri: TalerUri;
  onConfirm: () => Promise<void>;
}) {
  const { i18n } = useTranslationContext();
  switch (uri.type) {
    case TalerUriAction.WithdrawExchange:
    case TalerUriAction.Withdraw:
      return (
        <div>
          <p>
            <i18n.Translate>This page has a withdrawal action.</i18n.Translate>
          </p>
          <Button variant="contained" color="success" onClick={onConfirm}>
            <i18n.Translate>Open withdraw page</i18n.Translate>
          </Button>
        </div>
      );

    case TalerUriAction.PayTemplate:
    case TalerUriAction.Pay:
      return (
        <div>
          <p>
            <i18n.Translate>This page has pay action.</i18n.Translate>
          </p>
          <Button variant="contained" color="success" onClick={onConfirm}>
            <i18n.Translate>Open pay page</i18n.Translate>
          </Button>
        </div>
      );

    case TalerUriAction.Refund:
      return (
        <div>
          <p>
            <i18n.Translate>This page has a refund action.</i18n.Translate>
          </p>
          <Button variant="contained" color="success" onClick={onConfirm}>
            <i18n.Translate>Open refund page</i18n.Translate>
          </Button>
        </div>
      );
    case TalerUriAction.AddExchange:
      return (
        <div>
          <p>
            <i18n.Translate>This page has a add exchange action.</i18n.Translate>
          </p>
          <Button variant="contained" color="success" onClick={onConfirm}>
            <i18n.Translate>Open add exchange page</i18n.Translate>
          </Button>
        </div>
      );

    case TalerUriAction.DevExperiment:
    case TalerUriAction.PayPull:
    case TalerUriAction.PayPush:
    case TalerUriAction.Restore:
      return null;
    default: {
      const error: never = uri;
      return null;
    }
  }
}

export function TalerActionFound({ url, onDismiss }: Props): VNode {
  const talerUri = parseTalerUri(url);
  const { i18n } = useTranslationContext();
  async function redirectToWallet(): Promise<void> {
    platform.openWalletURIFromPopup(talerUri!);
  }
  return (
    <Fragment>
      <section>
        <Title>
          <i18n.Translate>Taler Action</i18n.Translate>
        </Title>
        {!talerUri ? (
          <div>
            <p>
              <i18n.Translate>
                This page has a malformed taler uri.
              </i18n.Translate>
            </p>
          </div>
        ) : (
          <ContentByUriType uri={talerUri} onConfirm={redirectToWallet} />
        )}
      </section>
      <footer>
        <div />
        <Button variant="contained" onClick={onDismiss}>
          <i18n.Translate>Dismiss</i18n.Translate>
        </Button>
      </footer>
    </Fragment>
  );
}