/*
 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,
  ExchangeListItem,
  GetExchangeTosResult,
} from "@gnu-taler/taler-util";
import { ExchangeWithdrawDetails } from "@gnu-taler/taler-wallet-core";
import { expect } from "chai";
import { mountHook } from "../test-utils.js";
import { useComponentState } from "./Withdraw.js";

const exchanges: ExchangeListItem[] = [
  {
    currency: "ARS",
    exchangeBaseUrl: "http://exchange.demo.taler.net",
    paytoUris: [],
    tos: {
      acceptedVersion: "",
    },
  },
];

describe("Withdraw CTA states", () => {
  it("should tell the user that the URI is missing", async () => {
    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState(undefined, {
          listExchanges: async () => ({ exchanges }),
          getWithdrawalDetailsForUri: async ({ talerWithdrawUri }: any) => ({
            amount: "ARS:2",
            possibleExchanges: exchanges,
          }),
        } as any),
      );

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

    await waitNextUpdate();

    {
      const { status, hook } = getLastResultOrThrow();

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

    await assertNoPendingUpdate();
  });

  it("should tell the user that there is not known exchange", async () => {
    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState("taler-withdraw://", {
          listExchanges: async () => ({ exchanges }),
          getWithdrawalDetailsForUri: async ({ talerWithdrawUri }: any) => ({
            amount: "EUR:2",
            possibleExchanges: [],
          }),
        } as any),
      );

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

    await waitNextUpdate();

    {
      const { status, hook } = getLastResultOrThrow();

      expect(status).equals("loading-exchange");

      expect(hook).deep.equals({
        hasError: true,
        operational: false,
        message: "ERROR_NO-DEFAULT-EXCHANGE",
      });
    }

    await assertNoPendingUpdate();
  });

  it("should be able to withdraw if tos are ok", async () => {
    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState("taler-withdraw://", {
          listExchanges: async () => ({ exchanges }),
          getWithdrawalDetailsForUri: async ({ talerWithdrawUri }: any) => ({
            amount: "ARS:2",
            possibleExchanges: exchanges,
          }),
          getExchangeWithdrawalInfo:
            async (): Promise<ExchangeWithdrawDetails> =>
            ({
              withdrawalAmountRaw: "ARS:5",
              withdrawalAmountEffective: "ARS:5",
            } as any),
          getExchangeTos: async (): Promise<GetExchangeTosResult> => ({
            contentType: "text",
            content: "just accept",
            acceptedEtag: "v1",
            currentEtag: "v1",
          }),
        } as any),
      );

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

    await waitNextUpdate();

    {
      const { status, hook } = getLastResultOrThrow();

      expect(status).equals("loading-info");

      expect(hook).undefined;
    }

    await waitNextUpdate();

    {
      const state = getLastResultOrThrow();
      expect(state.status).equals("success");
      if (state.status !== "success") return;

      expect(state.exchange.isDirty).false;
      expect(state.exchange.value).equal("http://exchange.demo.taler.net");
      expect(state.exchange.list).deep.equal({
        "http://exchange.demo.taler.net": "http://exchange.demo.taler.net",
      });
      expect(state.showExchangeSelection).false;

      expect(state.toBeReceived).deep.equal(Amounts.parseOrThrow("ARS:2"));
      expect(state.withdrawalFee).deep.equal(Amounts.parseOrThrow("ARS:0"));
      expect(state.chosenAmount).deep.equal(Amounts.parseOrThrow("ARS:2"));

      expect(state.doWithdrawal.onClick).not.undefined;
      expect(state.mustAcceptFirst).false;
    }

    await assertNoPendingUpdate();
  });

  it("should be accept the tos before withdraw", async () => {
    const { getLastResultOrThrow, waitNextUpdate, assertNoPendingUpdate } =
      mountHook(() =>
        useComponentState("taler-withdraw://", {
          listExchanges: async () => ({ exchanges }),
          getWithdrawalDetailsForUri: async ({ talerWithdrawUri }: any) => ({
            amount: "ARS:2",
            possibleExchanges: exchanges,
          }),
          getExchangeWithdrawalInfo:
            async (): Promise<ExchangeWithdrawDetails> =>
            ({
              withdrawalAmountRaw: "ARS:5",
              withdrawalAmountEffective: "ARS:5",
            } as any),
          getExchangeTos: async (): Promise<GetExchangeTosResult> => ({
            contentType: "text",
            content: "just accept",
            acceptedEtag: "v1",
            currentEtag: "v2",
          }),
          setExchangeTosAccepted: async () => ({}),
        } as any),
      );

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

    await waitNextUpdate();

    {
      const { status, hook } = getLastResultOrThrow();

      expect(status).equals("loading-info");

      expect(hook).undefined;
    }

    await waitNextUpdate();

    {
      const state = getLastResultOrThrow();
      expect(state.status).equals("success");
      if (state.status !== "success") return;

      expect(state.exchange.isDirty).false;
      expect(state.exchange.value).equal("http://exchange.demo.taler.net");
      expect(state.exchange.list).deep.equal({
        "http://exchange.demo.taler.net": "http://exchange.demo.taler.net",
      });
      expect(state.showExchangeSelection).false;

      expect(state.toBeReceived).deep.equal(Amounts.parseOrThrow("ARS:2"));
      expect(state.withdrawalFee).deep.equal(Amounts.parseOrThrow("ARS:0"));
      expect(state.chosenAmount).deep.equal(Amounts.parseOrThrow("ARS:2"));

      expect(state.doWithdrawal.onClick).undefined;
      expect(state.mustAcceptFirst).true;

      // accept TOS
      state.tosProps?.onAccept(true);
    }

    await waitNextUpdate();

    {
      const state = getLastResultOrThrow();
      expect(state.status).equals("success");
      if (state.status !== "success") return;

      expect(state.exchange.isDirty).false;
      expect(state.exchange.value).equal("http://exchange.demo.taler.net");
      expect(state.exchange.list).deep.equal({
        "http://exchange.demo.taler.net": "http://exchange.demo.taler.net",
      });
      expect(state.showExchangeSelection).false;

      expect(state.toBeReceived).deep.equal(Amounts.parseOrThrow("ARS:2"));
      expect(state.withdrawalFee).deep.equal(Amounts.parseOrThrow("ARS:0"));
      expect(state.chosenAmount).deep.equal(Amounts.parseOrThrow("ARS:2"));

      expect(state.doWithdrawal.onClick).not.undefined;
      expect(state.mustAcceptFirst).true;
    }

    await assertNoPendingUpdate();
  });
});