/*
 This file is part of GNU Taler
 (C) 2021-2024 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 {
  HttpStatusCode,
  OrderVersion,
  TalerError,
  TalerErrorCode,
  assertUnreachable,
} from "@gnu-taler/taler-util";
import { Loading, useTranslationContext } from "@gnu-taler/web-util/browser";
import { VNode, h } from "preact";
import { ErrorLoadingMerchant } from "../../../../components/ErrorLoadingMerchant.js";
import { CreatedSuccessfully } from "../../../../components/notifications/CreatedSuccessfully.js";
import { useOrderDetails } from "../../../../hooks/order.js";
import { NotFoundPageOrAdminCreate } from "../../../notfound/index.js";
import { Entity } from "./index.js";
import { LoginPage } from "../../../login/index.js";

const TALER_SCREEN_ID = 43;

interface Props {
  entity: Entity;
  onConfirm: () => void;
  onCreateAnother?: () => void;
}

export function OrderCreatedSuccessfully({
  entity,
  onConfirm,
  onCreateAnother,
}: Props): VNode {
  const result = useOrderDetails(entity.response.order_id);
  const { i18n } = useTranslationContext();

  if (!result) return <Loading />;
  if (result instanceof TalerError) {
    return <ErrorLoadingMerchant error={result} />;
  }

  if (
    entity.request.order.version !== undefined &&
    entity.request.order.version !== OrderVersion.V0
  ) {
    return <div>Unsupported order version {entity.request.order.version}</div>;
  }

  if (result.type === "fail") {
    switch (result.case) {
      case TalerErrorCode.MERCHANT_GENERIC_INSTANCE_UNKNOWN: {
        return <NotFoundPageOrAdminCreate />;
      }
      case TalerErrorCode.MERCHANT_GENERIC_ORDER_UNKNOWN: {
        return <i18n.Translate>Order unknown</i18n.Translate>;
      }
      case HttpStatusCode.Unauthorized: {
        return <LoginPage />;
      }
      default: {
        assertUnreachable(result);
      }
    }
  }

  const url =
    result.body.order_status === "unpaid"
      ? result.body.taler_pay_uri
      : result.body.contract_terms.fulfillment_url;

  return (
    <CreatedSuccessfully
      onConfirm={onConfirm}
      onCreateAnother={onCreateAnother}
    >
      {!entity.request.order.version ? (
        <div class="field is-horizontal">
          <div class="field-label is-normal">
            <label class="label">
              <i18n.Translate>Amount</i18n.Translate>
            </label>
          </div>
          <div class="field-body is-flex-grow-3">
            <div class="field">
              <p class="control">
                <input
                  class="input"
                  readonly
                  value={entity.request.order.amount}
                />
              </p>
            </div>
          </div>
        </div>
      ) : (
        <div class="field is-horizontal">
          <div class="field-label is-normal">
            <label class="label">
              <i18n.Translate>Choices</i18n.Translate>
            </label>
          </div>
          <div class="field-body is-flex-grow-3">
            <div class="field">
              <p class="control">
                <i18n.Translate>
                  This feature is not yet supported
                </i18n.Translate>
              </p>
            </div>
          </div>
        </div>
      )}

      <div class="field is-horizontal">
        <div class="field-label is-normal">
          <label class="label">
            <i18n.Translate>Summary</i18n.Translate>
          </label>
        </div>
        <div class="field-body is-flex-grow-3">
          <div class="field">
            <p class="control">
              <input
                class="input"
                readonly
                value={entity.request.order.summary}
              />
            </p>
          </div>
        </div>
      </div>
      <div class="field is-horizontal">
        <div class="field-label is-normal">
          <label class="label">
            <i18n.Translate>Order ID</i18n.Translate>
          </label>
        </div>
        <div class="field-body is-flex-grow-3">
          <div class="field">
            <p class="control">
              <input class="input" readonly value={entity.response.order_id} />
            </p>
          </div>
        </div>
      </div>
      <div class="field is-horizontal">
        <div class="field-label is-normal">
          <label class="label">
            <i18n.Translate>Payment URL</i18n.Translate>
          </label>
        </div>
        <div class="field-body is-flex-grow-3">
          <div class="field">
            <p class="control">
              <input class="input" readonly value={url} />
            </p>
          </div>
        </div>
      </div>
    </CreatedSuccessfully>
  );
}
