/*
 This file is part of GNU Taler
 (C) 2021 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, PrepareTipResult } from "@gnu-taler/taler-util";
import { expect } from "chai";
import { mountHook } from "../test-utils.js";
import { useComponentState } from "./Tip.jsx";

describe("Tip CTA states", () => {
  it("should tell the user that the URI is missing", async () => {
    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } = mountHook(() =>
      useComponentState(undefined, {
        prepareTip: async () => ({}),
        acceptTip: async () => ({})
      } as any),
    );

    {
      const { status, hook } = getLastResultOrThrow()
      expect(status).equals('loading')
      expect(hook).undefined;
    }

    await waitNextUpdate()

    {
      const { status, hook } = getLastResultOrThrow()

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

    await assertNoPendingUpdate()
  });

  it("should be ready for accepting the tip", async () => {
    let tipAccepted = false;

    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } = mountHook(() =>
      useComponentState("taler://tip/asd", {
        prepareTip: async () => ({
          accepted: tipAccepted,
          exchangeBaseUrl: "exchange url",
          merchantBaseUrl: "merchant url",
          tipAmountEffective: "EUR:1",
          walletTipId: "tip_id",
        } as PrepareTipResult as any),
        acceptTip: async () => {
          tipAccepted = true
        }
      } as any),
    );

    {
      const { status, hook } = getLastResultOrThrow()
      expect(status).equals('loading')
      expect(hook).undefined;
    }

    await waitNextUpdate()

    {
      const state = getLastResultOrThrow()

      if (state.status !== "ready") expect.fail()
      if (state.hook) 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();

      state.accept.onClick();
    }

    await waitNextUpdate()
    {
      const state = getLastResultOrThrow()

      if (state.status !== "accepted") expect.fail()
      if (state.hook) 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()
  });

  it("should be ignored after clicking the ignore button", async () => {
    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } = mountHook(() =>
      useComponentState("taler://tip/asd", {
        prepareTip: async () => ({
          exchangeBaseUrl: "exchange url",
          merchantBaseUrl: "merchant url",
          tipAmountEffective: "EUR:1",
          walletTipId: "tip_id",
        } as PrepareTipResult as any),
        acceptTip: async () => ({})
      } as any),
    );

    {
      const { status, hook } = getLastResultOrThrow()
      expect(status).equals('loading')
      expect(hook).undefined;
    }

    await waitNextUpdate()

    {
      const state = getLastResultOrThrow()

      if (state.status !== "ready") expect.fail()
      if (state.hook) 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.ignore.onClick === undefined) expect.fail();

      state.ignore.onClick();
    }

    await waitNextUpdate()
    {
      const state = getLastResultOrThrow()

      if (state.status !== "ignored") expect.fail()
      if (state.hook) expect.fail();

    }
    await assertNoPendingUpdate()
  });

  it("should render accepted if the tip has been used previously", async () => {

    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } = mountHook(() =>
      useComponentState("taler://tip/asd", {
        prepareTip: async () => ({
          accepted: true,
          exchangeBaseUrl: "exchange url",
          merchantBaseUrl: "merchant url",
          tipAmountEffective: "EUR:1",
          walletTipId: "tip_id",
        } as PrepareTipResult as any),
        acceptTip: async () => ({})
      } as any),
    );

    {
      const { status, hook } = getLastResultOrThrow()
      expect(status).equals('loading')
      expect(hook).undefined;
    }

    await waitNextUpdate()

    {
      const state = getLastResultOrThrow()

      if (state.status !== "accepted") expect.fail()
      if (state.hook) 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()
  });


});