/*
Copyright 2024 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.

SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/

import React from "react";
import { jest } from "@jest/globals";
import { Room, MatrixClient } from "matrix-js-sdk/src/matrix";
import { ClientWidgetApi, IWidget, MatrixWidgetType } from "matrix-widget-api";
import { Optional } from "matrix-events-sdk";
import { act, render, RenderResult } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { SpiedFunction } from "jest-mock";
import {
    ApprovalOpts,
    WidgetInfo,
    WidgetLifecycle,
} from "@matrix-org/react-sdk-module-api/lib/lifecycles/WidgetLifecycle";

import RightPanel from "../../../../src/components/structures/RightPanel";
import { MatrixClientPeg } from "../../../../src/MatrixClientPeg";
import ResizeNotifier from "../../../../src/utils/ResizeNotifier";
import { stubClient } from "../../../test-utils";
import { Action } from "../../../../src/dispatcher/actions";
import dis from "../../../../src/dispatcher/dispatcher";
import DMRoomMap from "../../../../src/utils/DMRoomMap";
import MatrixClientContext from "../../../../src/contexts/MatrixClientContext";
import SettingsStore from "../../../../src/settings/SettingsStore";
import { RightPanelPhases } from "../../../../src/stores/right-panel/RightPanelStorePhases";
import RightPanelStore from "../../../../src/stores/right-panel/RightPanelStore";
import { UPDATE_EVENT } from "../../../../src/stores/AsyncStore";
import WidgetStore, { IApp } from "../../../../src/stores/WidgetStore";
import ActiveWidgetStore from "../../../../src/stores/ActiveWidgetStore";
import AppTile from "../../../../src/components/views/elements/AppTile";
import { Container, WidgetLayoutStore } from "../../../../src/stores/widgets/WidgetLayoutStore";
import AppsDrawer from "../../../../src/components/views/rooms/AppsDrawer";
import { ElementWidgetCapabilities } from "../../../../src/stores/widgets/ElementWidgetCapabilities";
import { ElementWidget } from "../../../../src/stores/widgets/StopGapWidget";
import { WidgetMessagingStore } from "../../../../src/stores/widgets/WidgetMessagingStore";
import { ModuleRunner } from "../../../../src/modules/ModuleRunner";
import { RoomPermalinkCreator } from "../../../../src/utils/permalinks/Permalinks";

jest.mock("../../../../src/stores/OwnProfileStore", () => ({
    OwnProfileStore: {
        instance: {
            isProfileInfoFetched: true,
            removeListener: jest.fn(),
            getHttpAvatarUrl: jest.fn().mockReturnValue("http://avatar_url"),
        },
    },
}));

describe("AppTile", () => {
    let cli: MatrixClient;
    let r1: Room;
    let r2: Room;
    const resizeNotifier = new ResizeNotifier();
    let app1: IApp;
    let app2: IApp;

    const waitForRps = (roomId: string) =>
        new Promise<void>((resolve) => {
            const update = () => {
                if (RightPanelStore.instance.currentCardForRoom(roomId).phase !== RightPanelPhases.Widget) return;
                RightPanelStore.instance.off(UPDATE_EVENT, update);
                resolve();
            };
            RightPanelStore.instance.on(UPDATE_EVENT, update);
        });

    beforeAll(async () => {
        stubClient();
        cli = MatrixClientPeg.safeGet();
        cli.hasLazyLoadMembersEnabled = () => false;

        // Init misc. startup deps
        DMRoomMap.makeShared(cli);

        r1 = new Room("r1", cli, "@name:example.com");
        r2 = new Room("r2", cli, "@name:example.com");

        jest.spyOn(cli, "getRoom").mockImplementation((roomId) => {
            if (roomId === "r1") return r1;
            if (roomId === "r2") return r2;
            return null;
        });
        jest.spyOn(cli, "getVisibleRooms").mockImplementation(() => {
            return [r1, r2];
        });

        // Adjust various widget stores to add mock apps
        app1 = {
            id: "1",
            eventId: "1",
            roomId: "r1",
            type: MatrixWidgetType.Custom,
            url: "https://example.com",
            name: "Example 1",
            creatorUserId: cli.getSafeUserId(),
            avatar_url: undefined,
        };
        app2 = {
            id: "1",
            eventId: "2",
            roomId: "r2",
            type: MatrixWidgetType.Custom,
            url: "https://example.com",
            name: "Example 2",
            creatorUserId: cli.getSafeUserId(),
            avatar_url: undefined,
        };
        jest.spyOn(WidgetStore.instance, "getApps").mockImplementation((roomId: string): Array<IApp> => {
            if (roomId === "r1") return [app1];
            if (roomId === "r2") return [app2];
            return [];
        });

        // Wake up various stores we rely on
        WidgetLayoutStore.instance.useUnitTestClient(cli);
        // @ts-ignore
        await WidgetLayoutStore.instance.onReady();
        RightPanelStore.instance.useUnitTestClient(cli);
        // @ts-ignore
        await RightPanelStore.instance.onReady();
    });

    beforeEach(() => {
        jest.spyOn(SettingsStore, "getValue").mockRestore();
    });

    it("destroys non-persisted right panel widget on room change", async () => {
        // Set up right panel state
        const realGetValue = SettingsStore.getValue;
        const mockSettings = jest.spyOn(SettingsStore, "getValue").mockImplementation((name, roomId) => {
            if (name !== "RightPanel.phases") return realGetValue(name, roomId);
            if (roomId === "r1") {
                return {
                    history: [
                        {
                            phase: RightPanelPhases.Widget,
                            state: {
                                widgetId: "1",
                            },
                        },
                    ],
                    isOpen: true,
                };
            }
            return null;
        });

        // Run initial render with room 1, and also running lifecycle methods
        const renderResult = render(
            <MatrixClientContext.Provider value={cli}>
                <RightPanel
                    room={r1}
                    resizeNotifier={resizeNotifier}
                    permalinkCreator={new RoomPermalinkCreator(r1, r1.roomId)}
                />
            </MatrixClientContext.Provider>,
        );
        // Wait for RPS room 1 updates to fire
        const rpsUpdated = waitForRps("r1");
        dis.dispatch({
            action: Action.ViewRoom,
            room_id: "r1",
        });
        await rpsUpdated;

        expect(renderResult.getByText("Example 1")).toBeInTheDocument();
        expect(ActiveWidgetStore.instance.isLive("1", "r1")).toBe(true);

        const { container, asFragment } = renderResult;
        expect(container.getElementsByClassName("mx_Spinner").length).toBeTruthy();
        expect(asFragment()).toMatchSnapshot();

        // We want to verify that as we change to room 2, we should close the
        // right panel and destroy the widget.

        // Switch to room 2
        dis.dispatch({
            action: Action.ViewRoom,
            room_id: "r2",
        });

        renderResult.rerender(
            <MatrixClientContext.Provider value={cli}>
                <RightPanel
                    room={r2}
                    resizeNotifier={resizeNotifier}
                    permalinkCreator={new RoomPermalinkCreator(r2, r2.roomId)}
                />
            </MatrixClientContext.Provider>,
        );

        expect(renderResult.queryByText("Example 1")).not.toBeInTheDocument();
        expect(ActiveWidgetStore.instance.isLive("1", "r1")).toBe(false);

        mockSettings.mockRestore();
    });

    it("distinguishes widgets with the same ID in different rooms", async () => {
        // Set up right panel state
        const realGetValue = SettingsStore.getValue;
        jest.spyOn(SettingsStore, "getValue").mockImplementation((name, roomId) => {
            if (name === "RightPanel.phases") {
                if (roomId === "r1") {
                    return {
                        history: [
                            {
                                phase: RightPanelPhases.Widget,
                                state: {
                                    widgetId: "1",
                                },
                            },
                        ],
                        isOpen: true,
                    };
                }
                return null;
            }
            return realGetValue(name, roomId);
        });

        // Run initial render with room 1, and also running lifecycle methods
        const renderResult = render(
            <MatrixClientContext.Provider value={cli}>
                <RightPanel
                    room={r1}
                    resizeNotifier={resizeNotifier}
                    permalinkCreator={new RoomPermalinkCreator(r1, r1.roomId)}
                />
            </MatrixClientContext.Provider>,
        );
        // Wait for RPS room 1 updates to fire
        const rpsUpdated1 = waitForRps("r1");
        dis.dispatch({
            action: Action.ViewRoom,
            room_id: "r1",
        });
        await rpsUpdated1;

        expect(ActiveWidgetStore.instance.isLive("1", "r1")).toBe(true);
        expect(ActiveWidgetStore.instance.isLive("1", "r2")).toBe(false);

        jest.spyOn(SettingsStore, "getValue").mockImplementation((name, roomId) => {
            if (name === "RightPanel.phases") {
                if (roomId === "r2") {
                    return {
                        history: [
                            {
                                phase: RightPanelPhases.Widget,
                                state: {
                                    widgetId: "1",
                                },
                            },
                        ],
                        isOpen: true,
                    };
                }
                return null;
            }
            return realGetValue(name, roomId);
        });
        // Wait for RPS room 2 updates to fire
        const rpsUpdated2 = waitForRps("r2");
        // Switch to room 2
        dis.dispatch({
            action: Action.ViewRoom,
            room_id: "r2",
        });
        renderResult.rerender(
            <MatrixClientContext.Provider value={cli}>
                <RightPanel
                    room={r2}
                    resizeNotifier={resizeNotifier}
                    permalinkCreator={new RoomPermalinkCreator(r2, r2.roomId)}
                />
            </MatrixClientContext.Provider>,
        );
        await rpsUpdated2;

        expect(ActiveWidgetStore.instance.isLive("1", "r1")).toBe(false);
        expect(ActiveWidgetStore.instance.isLive("1", "r2")).toBe(true);
    });

    it("preserves non-persisted widget on container move", async () => {
        // Set up widget in top container
        const realGetValue = SettingsStore.getValue;
        const mockSettings = jest.spyOn(SettingsStore, "getValue").mockImplementation((name, roomId) => {
            if (name !== "Widgets.layout") return realGetValue(name, roomId);
            if (roomId === "r1") {
                return {
                    widgets: {
                        1: {
                            container: Container.Top,
                        },
                    },
                };
            }
            return null;
        });

        act(() => {
            WidgetLayoutStore.instance.recalculateRoom(r1);
        });

        // Run initial render with room 1, and also running lifecycle methods
        const renderResult = render(
            <MatrixClientContext.Provider value={cli}>
                <AppsDrawer userId={cli.getSafeUserId()} room={r1} resizeNotifier={resizeNotifier} />
            </MatrixClientContext.Provider>,
        );

        expect(renderResult.getByText("Example 1")).toBeInTheDocument();
        expect(ActiveWidgetStore.instance.isLive("1", "r1")).toBe(true);

        const { asFragment } = renderResult;
        expect(asFragment()).toMatchSnapshot(); // Take snapshot of AppsDrawer with AppTile

        // We want to verify that as we move the widget to the center container,
        // the widget frame remains running.

        // Stop mocking settings so that the widget move can take effect
        mockSettings.mockRestore();
        act(() => {
            // Move widget to center
            WidgetLayoutStore.instance.moveToContainer(r1, app1, Container.Center);
        });

        expect(renderResult.getByText("Example 1")).toBeInTheDocument();
        expect(ActiveWidgetStore.instance.isLive("1", "r1")).toBe(true);
    });

    afterAll(async () => {
        // @ts-ignore
        await WidgetLayoutStore.instance.onNotReady();
        // @ts-ignore
        await RightPanelStore.instance.onNotReady();
        jest.restoreAllMocks();
    });

    describe("for a pinned widget", () => {
        let renderResult: RenderResult;
        let moveToContainerSpy: SpiedFunction<typeof WidgetLayoutStore.instance.moveToContainer>;

        beforeEach(() => {
            renderResult = render(
                <MatrixClientContext.Provider value={cli}>
                    <AppTile key={app1.id} app={app1} room={r1} />
                </MatrixClientContext.Provider>,
            );

            moveToContainerSpy = jest.spyOn(WidgetLayoutStore.instance, "moveToContainer");
        });

        it("should render", () => {
            const { container, asFragment } = renderResult;

            expect(container.querySelector(".mx_Spinner")).toBeFalsy(); // Assert that the spinner is gone
            expect(asFragment()).toMatchSnapshot(); // Take a snapshot of the pinned widget
        });

        it("should not display the »Popout widget« button", () => {
            expect(renderResult.queryByLabelText("Popout widget")).not.toBeInTheDocument();
        });

        it("clicking 'minimise' should send the widget to the right", async () => {
            await userEvent.click(renderResult.getByLabelText("Minimise"));
            expect(moveToContainerSpy).toHaveBeenCalledWith(r1, app1, Container.Right);
        });

        it("clicking 'maximise' should send the widget to the center", async () => {
            await userEvent.click(renderResult.getByLabelText("Maximise"));
            expect(moveToContainerSpy).toHaveBeenCalledWith(r1, app1, Container.Center);
        });

        it("should render permission request", () => {
            jest.spyOn(ModuleRunner.instance, "invoke").mockImplementation((lifecycleEvent, opts, widgetInfo) => {
                if (lifecycleEvent === WidgetLifecycle.PreLoadRequest && (widgetInfo as WidgetInfo).id === app1.id) {
                    (opts as ApprovalOpts).approved = false;
                }
            });

            // userId and creatorUserId are different
            const renderResult = render(
                <MatrixClientContext.Provider value={cli}>
                    <AppTile key={app1.id} app={app1} room={r1} userId="@user1" creatorUserId="@userAnother" />
                </MatrixClientContext.Provider>,
            );

            const { container, asFragment } = renderResult;

            expect(container.querySelector(".mx_Spinner")).toBeFalsy();
            expect(asFragment()).toMatchSnapshot();

            expect(renderResult.queryByRole("button", { name: "Continue" })).toBeInTheDocument();
        });

        it("should not display 'Continue' button on permission load", () => {
            jest.spyOn(ModuleRunner.instance, "invoke").mockImplementation((lifecycleEvent, opts, widgetInfo) => {
                if (lifecycleEvent === WidgetLifecycle.PreLoadRequest && (widgetInfo as WidgetInfo).id === app1.id) {
                    (opts as ApprovalOpts).approved = true;
                }
            });

            // userId and creatorUserId are different
            const renderResult = render(
                <MatrixClientContext.Provider value={cli}>
                    <AppTile key={app1.id} app={app1} room={r1} userId="@user1" creatorUserId="@userAnother" />
                </MatrixClientContext.Provider>,
            );

            expect(renderResult.queryByRole("button", { name: "Continue" })).not.toBeInTheDocument();
        });

        describe("for a maximised (centered) widget", () => {
            beforeEach(() => {
                jest.spyOn(WidgetLayoutStore.instance, "isInContainer").mockImplementation(
                    (room: Optional<Room>, widget: IWidget, container: Container) => {
                        return room === r1 && widget === app1 && container === Container.Center;
                    },
                );
            });

            it("clicking 'un-maximise' should send the widget to the top", async () => {
                await userEvent.click(renderResult.getByLabelText("Un-maximise"));
                expect(moveToContainerSpy).toHaveBeenCalledWith(r1, app1, Container.Top);
            });
        });

        describe("with an existing widgetApi with requiresClient = false", () => {
            beforeEach(() => {
                const api = {
                    hasCapability: (capability: ElementWidgetCapabilities): boolean => {
                        return !(capability === ElementWidgetCapabilities.RequiresClient);
                    },
                    once: () => {},
                    stop: () => {},
                } as unknown as ClientWidgetApi;

                const mockWidget = new ElementWidget(app1);
                WidgetMessagingStore.instance.storeMessaging(mockWidget, r1.roomId, api);

                renderResult = render(
                    <MatrixClientContext.Provider value={cli}>
                        <AppTile key={app1.id} app={app1} room={r1} />
                    </MatrixClientContext.Provider>,
                );
            });

            it("should display the »Popout widget« button", () => {
                expect(renderResult.getByLabelText("Popout widget")).toBeInTheDocument();
            });
        });
    });

    describe("for a persistent app", () => {
        let renderResult: RenderResult;

        beforeEach(() => {
            renderResult = render(
                <MatrixClientContext.Provider value={cli}>
                    <AppTile key={app1.id} app={app1} fullWidth={true} room={r1} miniMode={true} showMenubar={false} />
                </MatrixClientContext.Provider>,
            );
        });

        it("should render", () => {
            const { container, asFragment } = renderResult;

            expect(container.querySelector(".mx_Spinner")).toBeFalsy();
            expect(asFragment()).toMatchSnapshot();
        });
    });
});