/*
 This file is part of GNU Taler
 (C) 2023 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/>
 */

/**
 * Imports.
 */
import {
  ConfirmPayResultType,
  MerchantApiClient,
  PreparePayResultType,
  TalerMerchantApi,
} from "@gnu-taler/taler-util";
import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
import { GlobalTestState, harnessHttpLib } from "../harness/harness.js";
import {
  useSharedTestkudosEnvironment,
  withdrawViaBankV2,
} from "../harness/helpers.js";

export async function runRepurchaseTest(t: GlobalTestState) {
  // Set up test environment

  const { walletClient, bank, exchange, merchant } =
    await useSharedTestkudosEnvironment(t);

  // Withdraw digital cash into the wallet.

  await withdrawViaBankV2(t, {
    walletClient,
    bank,
    exchange,
    amount: "TESTKUDOS:20",
  });

  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});

  const order = {
    summary: "Buy me!",
    amount: "TESTKUDOS:5",
    fulfillment_url: "taler://fulfillment-success/thx",
  } satisfies TalerMerchantApi.Order;

  const merchantClient = new MerchantApiClient(merchant.makeInstanceBaseUrl());

  const orderOneResp = await merchantClient.createOrder({
    order: {
      summary: "Buy me",
      amount: "TESTKUDOS:5",
      fulfillment_url: "https://example.com/test",
    },
  });

  let orderOneStatus = await merchantClient.queryPrivateOrderStatus({
    orderId: orderOneResp.order_id,
    sessionId: "session1",
  });

  t.assertTrue(orderOneStatus.order_status === "unpaid");

  const preparePayOneResult = await walletClient.call(
    WalletApiOperation.PreparePayForUri,
    {
      talerPayUri: orderOneStatus.taler_pay_uri,
    },
  );

  t.assertTrue(
    preparePayOneResult.status === PreparePayResultType.PaymentPossible,
  );

  const r2 = await walletClient.call(WalletApiOperation.ConfirmPay, {
    transactionId: preparePayOneResult.transactionId,
  });

  t.assertTrue(r2.type === ConfirmPayResultType.Done);

  const orderTwoResp = await merchantClient.createOrder({
    order: {
      summary: "Buy me",
      amount: "TESTKUDOS:5",
      fulfillment_url: "https://example.com/test",
    },
  });

  let orderTwoStatus = await merchantClient.queryPrivateOrderStatus({
    orderId: orderTwoResp.order_id,
    sessionId: "session2",
  });

  t.assertTrue(orderTwoStatus.order_status === "unpaid");

  const orderLongpollUrl = new URL(
    `orders/${orderTwoResp.order_id}`,
    merchant.makeInstanceBaseUrl(),
  );
  if (orderTwoResp.token) {
    orderLongpollUrl.searchParams.set("token", orderTwoResp.token);
  }
  orderLongpollUrl.searchParams.set("timeout_ms", "60000");
  orderLongpollUrl.searchParams.set("session_id", "session2");

  const longpollPromise = harnessHttpLib.fetch(orderLongpollUrl.href);

  const preparePayTwoResult = await walletClient.call(
    WalletApiOperation.PreparePayForUri,
    {
      talerPayUri: orderTwoStatus.taler_pay_uri,
    },
  );

  // Repurchase should be detected
  t.assertTrue(
    preparePayTwoResult.status === PreparePayResultType.AlreadyConfirmed,
  );

  t.logStep("start-wait-longpoll-promise");
  await longpollPromise;
  t.logStep("done-wait-longpoll-promise");

  // Order three

  const orderThreeResp = await merchantClient.createOrder({
    order: {
      summary: "Buy me",
      amount: "TESTKUDOS:5",
      fulfillment_url: "https://example.com/test",
    },
  });

  let orderThreeStatus = await merchantClient.queryPrivateOrderStatus({
    orderId: orderThreeResp.order_id,
    // Go back to session1
    sessionId: "session1",
  });

  t.assertTrue(orderThreeStatus.order_status === "unpaid");

  const preparePayThreeResult = await walletClient.call(
    WalletApiOperation.PreparePayForUri,
    {
      talerPayUri: orderThreeStatus.taler_pay_uri,
    },
  );

  // Repurchase should be detected
  t.assertTrue(
    preparePayThreeResult.status === PreparePayResultType.AlreadyConfirmed,
  );
}

runRepurchaseTest.suites = ["wallet"];