/*
Copyright 2016 OpenMarket Ltd
Copyright 2022 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import React from "react";
import { fireEvent, render, screen, act } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { mocked } from "jest-mock";
import { MatrixError } from "matrix-js-sdk/src/matrix";

import InteractiveAuthDialog from "../../../../src/components/views/dialogs/InteractiveAuthDialog";
import { clearAllModals, flushPromises, getMockClientWithEventEmitter, unmockClientPeg } from "../../../test-utils";

describe("InteractiveAuthDialog", function () {
    const homeserverUrl = "https://matrix.org";
    const authUrl = "https://auth.com";
    const mockClient = getMockClientWithEventEmitter({
        generateClientSecret: jest.fn().mockReturnValue("t35tcl1Ent5ECr3T"),
        getFallbackAuthUrl: jest.fn().mockReturnValue(authUrl),
        getHomeserverUrl: jest.fn().mockReturnValue(homeserverUrl),
    });

    const defaultProps = {
        matrixClient: mockClient,
        makeRequest: jest.fn().mockResolvedValue(undefined),
        onFinished: jest.fn(),
    };

    const renderComponent = (props = {}) => render(<InteractiveAuthDialog {...defaultProps} {...props} />);
    const getPasswordField = () => screen.getByLabelText("Password");
    const getSubmitButton = () => screen.getByRole("button", { name: "Continue" });

    beforeEach(async function () {
        jest.clearAllMocks();
        mockClient.credentials = { userId: null };
        await clearAllModals();
    });

    afterAll(async () => {
        unmockClientPeg();
        await clearAllModals();
    });

    it("Should successfully complete a password flow", async () => {
        const onFinished = jest.fn();
        const makeRequest = jest.fn().mockResolvedValue({ a: 1 });

        mockClient.credentials = { userId: "@user:id" };
        const authData = {
            session: "sess",
            flows: [{ stages: ["m.login.password"] }],
        };

        renderComponent({ makeRequest, onFinished, authData });

        const passwordField = getPasswordField();
        const submitButton = getSubmitButton();

        expect(passwordField).toBeTruthy();
        expect(submitButton).toBeTruthy();

        // submit should be disabled
        expect(submitButton).toBeDisabled();

        // put something in the password box
        await userEvent.type(passwordField, "s3kr3t");

        expect(submitButton).not.toBeDisabled();

        // hit enter; that should trigger a request
        await userEvent.click(submitButton);

        // wait for auth request to resolve
        await flushPromises();

        expect(makeRequest).toHaveBeenCalledTimes(1);
        expect(makeRequest).toHaveBeenCalledWith(
            expect.objectContaining({
                session: "sess",
                type: "m.login.password",
                password: "s3kr3t",
                identifier: {
                    type: "m.id.user",
                    user: "@user:id",
                },
            }),
        );

        expect(onFinished).toHaveBeenCalledTimes(1);
        expect(onFinished).toHaveBeenCalledWith(true, { a: 1 });
    });

    describe("SSO flow", () => {
        it("should close on cancel", () => {
            const onFinished = jest.fn();
            const makeRequest = jest.fn().mockResolvedValue({ a: 1 });

            mockClient.credentials = { userId: "@user:id" };
            const authData = {
                session: "sess",
                flows: [{ stages: ["m.login.sso"] }],
            };

            renderComponent({ makeRequest, onFinished, authData });

            expect(screen.getByText("To continue, use Single Sign On to prove your identity.")).toBeInTheDocument();

            fireEvent.click(screen.getByText("Cancel"));

            expect(onFinished).toHaveBeenCalledWith(false, null);
        });

        it("should complete an sso flow", async () => {
            jest.spyOn(global.window, "addEventListener");
            // @ts-ignore
            jest.spyOn(global.window, "open").mockImplementation(() => {});
            const onFinished = jest.fn();
            const successfulResult = { test: 1 };
            const makeRequest = jest
                .fn()
                .mockRejectedValueOnce(new MatrixError({ data: { flows: [{ stages: ["m.login.sso"] }] } }, 401))
                .mockResolvedValue(successfulResult);

            mockClient.credentials = { userId: "@user:id" };
            const authData = {
                session: "sess",
                flows: [{ stages: ["m.login.sso"] }],
            };

            renderComponent({ makeRequest, onFinished, authData });

            await flushPromises();

            expect(screen.getByText("To continue, use Single Sign On to prove your identity.")).toBeInTheDocument();
            fireEvent.click(screen.getByText("Single Sign On"));

            // no we're on the sso auth screen
            expect(screen.getByText("Click the button below to confirm your identity.")).toBeInTheDocument();

            // launch sso
            fireEvent.click(screen.getByText("Confirm"));
            expect(global.window.open).toHaveBeenCalledWith(authUrl, "_blank");

            const onWindowReceiveMessageCall = mocked(window.addEventListener).mock.calls.find(
                (args) => args[0] === "message",
            );
            expect(onWindowReceiveMessageCall).toBeTruthy();
            // get the handle from SSO auth component
            // so we can pretend sso auth was completed
            const onWindowReceiveMessage = onWindowReceiveMessageCall![1];

            // complete sso successfully
            act(() => {
                // @ts-ignore
                onWindowReceiveMessage({ data: "authDone", origin: homeserverUrl });
            });

            // expect(makeRequest).toHaveBeenCalledWith({ session: authData.session })

            // spinner displayed
            expect(screen.getByRole("progressbar")).toBeInTheDocument();
            // cancel/confirm buttons hidden while request in progress
            expect(screen.queryByText("Confirm")).not.toBeInTheDocument();

            await flushPromises();
            await flushPromises();

            // nothing in progress
            expect(screen.queryByRole("progressbar")).not.toBeInTheDocument();

            // auth completed, now make the request again with auth
            fireEvent.click(screen.getByText("Confirm"));
            // loading while making request
            expect(screen.getByRole("progressbar")).toBeInTheDocument();

            expect(makeRequest).toHaveBeenCalledTimes(2);

            await flushPromises();

            expect(onFinished).toHaveBeenCalledWith(true, successfulResult);
        });
    });
});
