/*
 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 { Amounts } from "@gnu-taler/taler-util";
import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
import { expect } from "chai";
import { mountHook } from "../../test-utils.js";
import { createWalletApiMock } from "../../test-utils.js";
import { useComponentState } from "./state.js";

describe("Tip CTA states", () => {
  it("should tell the user that the URI is missing", async () => {
    const { handler, mock } = createWalletApiMock();

    const { pullLastResultOrThrow, waitForStateUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState(
          {
            talerTipUri: undefined,
            onCancel: async () => {
              null;
            },
            onSuccess: async () => {
              null;
            },
          },
          mock,
        ),
      );

    {
      const { status, error } = pullLastResultOrThrow();
      expect(status).equals("loading");
      expect(error).undefined;
    }

    expect(await waitForStateUpdate()).true;

    {
      const { status, error } = pullLastResultOrThrow();

      expect(status).equals("loading-uri");
      if (!error) expect.fail();
      if (!error.hasError) expect.fail();
      if (error.operational) expect.fail();
      expect(error.message).eq("ERROR_NO-URI-FOR-TIP");
    }

    await assertNoPendingUpdate();
    expect(handler.getCallingQueueState()).eq("empty");
  });

  it("should be ready for accepting the tip", async () => {
    const { handler, mock } = createWalletApiMock();

    handler.addWalletCallResponse(WalletApiOperation.PrepareTip, undefined, {
      accepted: false,
      exchangeBaseUrl: "exchange url",
      merchantBaseUrl: "merchant url",
      tipAmountEffective: "EUR:1",
      walletTipId: "tip_id",
      expirationTimestamp: {
        t_s: 1,
      },
      tipAmountRaw: "",
    });

    const { pullLastResultOrThrow, waitForStateUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState(
          {
            talerTipUri: "taler://tip/asd",
            onCancel: async () => {
              null;
            },
            onSuccess: async () => {
              null;
            },
          },
          mock,
        ),
      );

    {
      const { status, error } = pullLastResultOrThrow();
      expect(status).equals("loading");
      expect(error).undefined;
    }

    expect(await waitForStateUpdate()).true;

    {
      const state = pullLastResultOrThrow();

      if (state.status !== "ready") {
        expect(state).eq({ status: "ready" });
        return;
      }
      if (state.error) expect.fail();
      expect(state.amount).deep.eq(Amounts.parseOrThrow("EUR:1"));
      expect(state.merchantBaseUrl).eq("merchant url");
      expect(state.exchangeBaseUrl).eq("exchange url");
      if (state.accept.onClick === undefined) expect.fail();

      handler.addWalletCallResponse(WalletApiOperation.AcceptTip);
      state.accept.onClick();
    }

    handler.addWalletCallResponse(WalletApiOperation.PrepareTip, undefined, {
      accepted: true,
      exchangeBaseUrl: "exchange url",
      merchantBaseUrl: "merchant url",
      tipAmountEffective: "EUR:1",
      walletTipId: "tip_id",
      expirationTimestamp: {
        t_s: 1,
      },
      tipAmountRaw: "",
    });
    expect(await waitForStateUpdate()).true;

    {
      const state = pullLastResultOrThrow();

      if (state.status !== "accepted") {
        expect(state).eq({ status: "accepted" });
        return;
      }
      if (state.error) expect.fail();
      expect(state.amount).deep.eq(Amounts.parseOrThrow("EUR:1"));
      expect(state.merchantBaseUrl).eq("merchant url");
      expect(state.exchangeBaseUrl).eq("exchange url");
    }
    await assertNoPendingUpdate();
    expect(handler.getCallingQueueState()).eq("empty");
  });

  it("should be ignored after clicking the ignore button", async () => {
    const { handler, mock } = createWalletApiMock();
    handler.addWalletCallResponse(WalletApiOperation.PrepareTip, undefined, {
      exchangeBaseUrl: "exchange url",
      merchantBaseUrl: "merchant url",
      tipAmountEffective: "EUR:1",
      walletTipId: "tip_id",
      accepted: false,
      expirationTimestamp: {
        t_s: 1,
      },
      tipAmountRaw: "",
    });

    const { pullLastResultOrThrow, waitForStateUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState(
          {
            talerTipUri: "taler://tip/asd",
            onCancel: async () => {
              null;
            },
            onSuccess: async () => {
              null;
            },
          },
          mock,
        ),
      );

    {
      const { status, error } = pullLastResultOrThrow();
      expect(status).equals("loading");
      expect(error).undefined;
    }

    expect(await waitForStateUpdate()).true;

    {
      const state = pullLastResultOrThrow();

      if (state.status !== "ready") expect.fail();
      if (state.error) expect.fail();
      expect(state.amount).deep.eq(Amounts.parseOrThrow("EUR:1"));
      expect(state.merchantBaseUrl).eq("merchant url");
      expect(state.exchangeBaseUrl).eq("exchange url");
    }

    await assertNoPendingUpdate();
    expect(handler.getCallingQueueState()).eq("empty");
  });

  it("should render accepted if the tip has been used previously", async () => {
    const { handler, mock } = createWalletApiMock();

    handler.addWalletCallResponse(WalletApiOperation.PrepareTip, undefined, {
      accepted: true,
      exchangeBaseUrl: "exchange url",
      merchantBaseUrl: "merchant url",
      tipAmountEffective: "EUR:1",
      walletTipId: "tip_id",
      expirationTimestamp: {
        t_s: 1,
      },
      tipAmountRaw: "",
    });

    const { pullLastResultOrThrow, waitForStateUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState(
          {
            talerTipUri: "taler://tip/asd",
            onCancel: async () => {
              null;
            },
            onSuccess: async () => {
              null;
            },
          },
          mock,
        ),
      );

    {
      const { status, error } = pullLastResultOrThrow();
      expect(status).equals("loading");
      expect(error).undefined;
    }

    expect(await waitForStateUpdate()).true;

    {
      const state = pullLastResultOrThrow();

      if (state.status !== "accepted") expect.fail();
      if (state.error) expect.fail();
      expect(state.amount).deep.eq(Amounts.parseOrThrow("EUR:1"));
      expect(state.merchantBaseUrl).eq("merchant url");
      expect(state.exchangeBaseUrl).eq("exchange url");
    }
    await assertNoPendingUpdate();
    expect(handler.getCallingQueueState()).eq("empty");
  });
});