/*
 This file is part of GNU Taler
 (C) 2020 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 {
  Duration,
  TransactionMajorState,
  TransactionType,
  j2s,
} from "@gnu-taler/taler-util";
import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
import { GlobalTestState } from "../harness/harness.js";
import {
  createSimpleTestkudosEnvironmentV2,
  withdrawViaBankV2,
} from "../harness/helpers.js";

/**
 * Basic time travel test.
 */
export async function runTimetravelWithdrawTest(t: GlobalTestState) {
  // Set up test environment

  const { walletClient, bank, exchange, merchant } =
    await createSimpleTestkudosEnvironmentV2(t);

  // Withdraw digital cash into the wallet.

  const wres1 = await withdrawViaBankV2(t, {
    walletClient,
    bank,
    exchange,
    amount: "TESTKUDOS:15",
  });
  await wres1.withdrawalFinishedCond;

  // Travel 400 days into the future,
  // as the deposit expiration is two years
  // into the future.
  const timetravelDuration: Duration = {
    d_ms: 1000 * 60 * 60 * 24 * 400,
  };

  await exchange.stop();
  exchange.setTimetravel(Duration.toMilliseconds(timetravelDuration));
  await exchange.start();
  await exchange.pingUntilAvailable();
  await exchange.keyup();

  await merchant.stop();
  merchant.setTimetravel(Duration.toMilliseconds(timetravelDuration));
  await merchant.start();
  await merchant.pingUntilAvailable();

  console.log("starting withdrawal via bank");

  // This should fail, as the wallet didn't time travel yet.
  const wres2 = await withdrawViaBankV2(t, {
    walletClient,
    bank,
    exchange,
    amount: "TESTKUDOS:20",
  });

  console.log("starting withdrawal done");

  // Check that transactions are correct for the failed withdrawal
  {
    const transactions = await walletClient.call(
      WalletApiOperation.GetTransactions,
      {
        sort: "stable-ascending",
      },
    );
    console.log(j2s(transactions));
    const types = transactions.transactions.map((x) => x.type);
    t.assertDeepEqual(types, ["withdrawal", "withdrawal"]);
    const wtrans = transactions.transactions[1];
    t.assertTrue(wtrans.type === TransactionType.Withdrawal);
    t.assertTrue(wtrans.txState.major === TransactionMajorState.Pending);
  }

  // Now we also let the wallet time travel

  walletClient.call(WalletApiOperation.TestingSetTimetravel, {
    offsetMs: Duration.toMilliseconds(timetravelDuration),
  });

  // The wallet should do denomination re-selection and succeed

  await wres2.withdrawalFinishedCond;
}

runTimetravelWithdrawTest.suites = ["wallet"];