/*
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 { fireEvent, render, screen } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { RoomType, MatrixClient, MatrixError, Room } from "matrix-js-sdk/src/matrix";
import { KnownMembership } from "matrix-js-sdk/src/types";
import { sleep } from "matrix-js-sdk/src/utils";
import { mocked, Mocked } from "jest-mock";

import InviteDialog from "../../../../src/components/views/dialogs/InviteDialog";
import { InviteKind } from "../../../../src/components/views/dialogs/InviteDialogTypes";
import {
    clearAllModals,
    filterConsole,
    flushPromises,
    getMockClientWithEventEmitter,
    mkMembership,
    mkMessage,
    mkRoomCreateEvent,
} from "../../../test-utils";
import DMRoomMap from "../../../../src/utils/DMRoomMap";
import SdkConfig from "../../../../src/SdkConfig";
import { ValidatedServerConfig } from "../../../../src/utils/ValidatedServerConfig";
import { IConfigOptions } from "../../../../src/IConfigOptions";
import { SdkContextClass } from "../../../../src/contexts/SDKContext";
import { IProfileInfo } from "../../../../src/hooks/useProfileInfo";
import { DirectoryMember, startDmOnFirstMessage } from "../../../../src/utils/direct-messages";
import SettingsStore from "../../../../src/settings/SettingsStore";

const mockGetAccessToken = jest.fn().mockResolvedValue("getAccessToken");
jest.mock("../../../../src/IdentityAuthClient", () =>
    jest.fn().mockImplementation(() => ({
        getAccessToken: mockGetAccessToken,
    })),
);

jest.mock("../../../../src/utils/direct-messages", () => ({
    ...jest.requireActual("../../../../src/utils/direct-messages"),
    __esModule: true,
    startDmOnFirstMessage: jest.fn(),
}));

const getSearchField = () => screen.getByTestId("invite-dialog-input");

const enterIntoSearchField = async (value: string) => {
    const searchField = getSearchField();
    await userEvent.clear(searchField);
    await userEvent.type(searchField, value + "{enter}");
};

const pasteIntoSearchField = async (value: string) => {
    const searchField = getSearchField();
    await userEvent.clear(searchField);
    searchField.focus();
    await userEvent.paste(value);
};

const expectPill = (value: string) => {
    expect(screen.getByText(value)).toBeInTheDocument();
    expect(getSearchField()).toHaveValue("");
};

const expectNoPill = (value: string) => {
    expect(screen.queryByText(value)).not.toBeInTheDocument();
    expect(getSearchField()).toHaveValue(value);
};

const roomId = "!111111111111111111:example.org";
const aliceId = "@alice:example.org";
const aliceEmail = "foobar@email.com";
const bobId = "@bob:example.org";
const bobEmail = "bobbob@example.com"; // bob@example.com is already used as an example in the invite dialog
const carolId = "@carol:example.com";
const bobbob = "bobbob";

const aliceProfileInfo: IProfileInfo = {
    user_id: aliceId,
    display_name: "Alice",
};

const bobProfileInfo: IProfileInfo = {
    user_id: bobId,
    display_name: "Bob",
};

describe("InviteDialog", () => {
    let mockClient: Mocked<MatrixClient>;
    let room: Room;

    filterConsole(
        "Error retrieving profile for userId @carol:example.com",
        "Error retrieving profile for userId @localpart:server.tld",
        "Error retrieving profile for userId @localpart:server:tld",
        "[Invite:Recents] Excluding @alice:example.org from recents",
    );

    beforeEach(() => {
        mockClient = getMockClientWithEventEmitter({
            getUserId: jest.fn().mockReturnValue(bobId),
            getSafeUserId: jest.fn().mockReturnValue(bobId),
            isGuest: jest.fn().mockReturnValue(false),
            getVisibleRooms: jest.fn().mockReturnValue([]),
            getRoom: jest.fn(),
            getRooms: jest.fn(),
            getAccountData: jest.fn(),
            getPushActionsForEvent: jest.fn(),
            mxcUrlToHttp: jest.fn().mockReturnValue(""),
            isRoomEncrypted: jest.fn().mockReturnValue(false),
            getProfileInfo: jest.fn().mockImplementation(async (userId: string) => {
                if (userId === aliceId) return aliceProfileInfo;
                if (userId === bobId) return bobProfileInfo;

                throw new MatrixError({
                    errcode: "M_NOT_FOUND",
                    error: "Profile not found",
                });
            }),
            getIdentityServerUrl: jest.fn(),
            searchUserDirectory: jest.fn().mockResolvedValue({}),
            lookupThreePid: jest.fn(),
            registerWithIdentityServer: jest.fn().mockResolvedValue({
                access_token: "access_token",
                token: "token",
            }),
            getOpenIdToken: jest.fn().mockResolvedValue({}),
            getIdentityAccount: jest.fn().mockResolvedValue({}),
            getTerms: jest.fn().mockResolvedValue({ policies: [] }),
            supportsThreads: jest.fn().mockReturnValue(false),
            isInitialSyncComplete: jest.fn().mockReturnValue(true),
            getClientWellKnown: jest.fn().mockResolvedValue({}),
        });
        SdkConfig.put({ validated_server_config: {} as ValidatedServerConfig } as IConfigOptions);
        DMRoomMap.makeShared(mockClient);
        jest.clearAllMocks();

        room = new Room(roomId, mockClient, mockClient.getSafeUserId());
        room.addLiveEvents([
            mkMessage({
                msg: "Hello",
                relatesTo: undefined,
                event: true,
                room: roomId,
                user: mockClient.getSafeUserId(),
                ts: Date.now(),
            }),
        ]);
        room.currentState.setStateEvents([
            mkRoomCreateEvent(bobId, roomId),
            mkMembership({
                event: true,
                room: roomId,
                mship: KnownMembership.Join,
                user: aliceId,
                skey: aliceId,
            }),
        ]);
        jest.spyOn(DMRoomMap.shared(), "getUniqueRoomsWithIndividuals").mockReturnValue({
            [aliceId]: room,
        });
        mockClient.getRooms.mockReturnValue([room]);
        mockClient.getRoom.mockReturnValue(room);

        SdkContextClass.instance.client = mockClient;
    });

    afterEach(async () => {
        await clearAllModals();
        SdkContextClass.instance.onLoggedOut();
        SdkContextClass.instance.client = undefined;
    });

    afterAll(() => {
        jest.restoreAllMocks();
    });

    it("should label with space name", () => {
        room.isSpaceRoom = jest.fn().mockReturnValue(true);
        room.getType = jest.fn().mockReturnValue(RoomType.Space);
        room.name = "Space";
        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);

        expect(screen.queryByText("Invite to Space")).toBeTruthy();
    });

    it("should label with room name", () => {
        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);
        expect(screen.getByText(`Invite to ${roomId}`)).toBeInTheDocument();
    });

    it("should not suggest valid unknown MXIDs", async () => {
        render(
            <InviteDialog
                kind={InviteKind.Invite}
                roomId={roomId}
                onFinished={jest.fn()}
                initialText="@localpart:server.tld"
            />,
        );
        await flushPromises();
        expect(screen.queryByText("@localpart:server.tld")).not.toBeInTheDocument();
    });

    it("should not suggest invalid MXIDs", () => {
        render(
            <InviteDialog
                kind={InviteKind.Invite}
                roomId={roomId}
                onFinished={jest.fn()}
                initialText="@localpart:server:tld"
            />,
        );

        expect(screen.queryByText("@localpart:server:tld")).toBeFalsy();
    });

    it.each([[InviteKind.Dm], [InviteKind.Invite]] as [typeof InviteKind.Dm | typeof InviteKind.Invite][])(
        "should lookup inputs which look like email addresses (%s)",
        async (kind: typeof InviteKind.Dm | typeof InviteKind.Invite) => {
            mockClient.getIdentityServerUrl.mockReturnValue("https://identity-server");
            mockClient.lookupThreePid.mockResolvedValue({
                address: aliceEmail,
                medium: "email",
                mxid: aliceId,
            });
            mockClient.getProfileInfo.mockResolvedValue({
                displayname: "Mrs Alice",
                avatar_url: "mxc://foo/bar",
            });

            render(
                <InviteDialog
                    kind={kind}
                    roomId={kind === InviteKind.Invite ? roomId : ""}
                    onFinished={jest.fn()}
                    initialText={aliceEmail}
                />,
            );

            await screen.findByText("Mrs Alice");
            // expect the email and MXID to be visible
            await screen.findByText(aliceId);
            await screen.findByText(aliceEmail);
            expect(mockClient.lookupThreePid).toHaveBeenCalledWith("email", aliceEmail, expect.anything());
            expect(mockClient.getProfileInfo).toHaveBeenCalledWith(aliceId);
        },
    );

    it("should suggest e-mail even if lookup fails", async () => {
        mockClient.getIdentityServerUrl.mockReturnValue("https://identity-server");
        mockClient.lookupThreePid.mockResolvedValue({});

        render(
            <InviteDialog
                kind={InviteKind.Invite}
                roomId={roomId}
                onFinished={jest.fn()}
                initialText="foobar@email.com"
            />,
        );

        await screen.findByText("foobar@email.com");
        await screen.findByText("Invite by email");
    });

    it("should add pasted values", async () => {
        mockClient.getIdentityServerUrl.mockReturnValue("https://identity-server");
        mockClient.lookupThreePid.mockResolvedValue({});

        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);

        const input = screen.getByTestId("invite-dialog-input");
        input.focus();
        await userEvent.paste(`${bobId} ${aliceEmail}`);

        await screen.findAllByText(bobId);
        await screen.findByText(aliceEmail);
        expect(input).toHaveValue("");
    });
    it("should support pasting one username that is not a mx id or email", async () => {
        mockClient.getIdentityServerUrl.mockReturnValue("https://identity-server");
        mockClient.lookupThreePid.mockResolvedValue({});

        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);

        const input = screen.getByTestId("invite-dialog-input");
        input.focus();
        await userEvent.paste(`${bobbob}`);

        await screen.findAllByText(bobId);
        expect(input).toHaveValue(`${bobbob}`);
    });

    it("should allow to invite multiple emails to a room", async () => {
        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);

        await enterIntoSearchField(aliceEmail);
        expectPill(aliceEmail);

        await enterIntoSearchField(bobEmail);
        expectPill(bobEmail);
    });

    describe("when encryption by default is disabled", () => {
        beforeEach(() => {
            mockClient.getClientWellKnown.mockReturnValue({
                "io.element.e2ee": {
                    default: false,
                },
            });
        });

        it("should allow to invite more than one email to a DM", async () => {
            render(<InviteDialog kind={InviteKind.Dm} onFinished={jest.fn()} />);

            await enterIntoSearchField(aliceEmail);
            expectPill(aliceEmail);

            await enterIntoSearchField(bobEmail);
            expectPill(bobEmail);
        });
    });

    it("should not allow to invite more than one email to a DM", async () => {
        render(<InviteDialog kind={InviteKind.Dm} onFinished={jest.fn()} />);

        // Start with an email → should convert to a pill
        await enterIntoSearchField(aliceEmail);
        expect(screen.getByText("Invites by email can only be sent one at a time")).toBeInTheDocument();
        expectPill(aliceEmail);

        // Everything else from now on should not convert to a pill

        await enterIntoSearchField(bobEmail);
        expectNoPill(bobEmail);

        await enterIntoSearchField(aliceId);
        expectNoPill(aliceId);

        await pasteIntoSearchField(bobEmail);
        expectNoPill(bobEmail);
    });

    it("should not allow to invite a MXID and an email to a DM", async () => {
        render(<InviteDialog kind={InviteKind.Dm} onFinished={jest.fn()} />);

        // Start with a MXID → should convert to a pill
        await enterIntoSearchField(carolId);
        expect(screen.queryByText("Invites by email can only be sent one at a time")).not.toBeInTheDocument();
        expectPill(carolId);

        // Add an email → should not convert to a pill
        await enterIntoSearchField(bobEmail);
        expect(screen.getByText("Invites by email can only be sent one at a time")).toBeInTheDocument();
        expectNoPill(bobEmail);
    });

    it("should start a DM if the profile is available", async () => {
        render(<InviteDialog kind={InviteKind.Dm} onFinished={jest.fn()} />);
        await enterIntoSearchField(aliceId);
        await userEvent.click(screen.getByRole("button", { name: "Go" }));
        expect(startDmOnFirstMessage).toHaveBeenCalledWith(mockClient, [
            new DirectoryMember({
                user_id: aliceId,
            }),
        ]);
    });

    it("should not allow pasting the same user multiple times", async () => {
        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);

        const input = screen.getByTestId("invite-dialog-input");
        input.focus();
        await userEvent.paste(`${bobId}`);
        await userEvent.paste(`${bobId}`);
        await userEvent.paste(`${bobId}`);

        expect(input).toHaveValue("");
        await expect(screen.findAllByText(bobId, { selector: "a" })).resolves.toHaveLength(1);
    });

    it("should add to selection on click of user tile", async () => {
        render(<InviteDialog kind={InviteKind.Invite} roomId={roomId} onFinished={jest.fn()} />);

        const input = screen.getByTestId("invite-dialog-input");
        input.focus();
        await userEvent.keyboard(`${aliceId}`);

        const btn = await screen.findByText(aliceId, {
            selector: ".mx_InviteDialog_tile_nameStack_userId .mx_InviteDialog_tile--room_highlight",
        });
        fireEvent.click(btn);

        const tile = await screen.findByText(aliceId, { selector: ".mx_InviteDialog_userTile_name" });
        expect(tile).toBeInTheDocument();
    });

    describe("when inviting a user with an unknown profile", () => {
        beforeEach(async () => {
            render(<InviteDialog kind={InviteKind.Dm} onFinished={jest.fn()} />);
            await enterIntoSearchField(carolId);
            await userEvent.click(screen.getByRole("button", { name: "Go" }));
            // Wait for the »invite anyway« modal to show up
            await screen.findByText("The following users may not exist");
        });

        it("should not start the DM", () => {
            expect(startDmOnFirstMessage).not.toHaveBeenCalled();
        });

        it("should show the »invite anyway« dialog if the profile is not available", () => {
            expect(screen.getByText("The following users may not exist")).toBeInTheDocument();
            expect(screen.getByText(`${carolId}: Profile not found`)).toBeInTheDocument();
        });

        describe("when clicking »Start DM anyway«", () => {
            beforeEach(async () => {
                await userEvent.click(screen.getByRole("button", { name: "Start DM anyway" }));
            });

            it("should start the DM", () => {
                expect(startDmOnFirstMessage).toHaveBeenCalledWith(mockClient, [
                    new DirectoryMember({
                        user_id: carolId,
                    }),
                ]);
            });
        });

        describe("when clicking »Close«", () => {
            beforeEach(async () => {
                mocked(startDmOnFirstMessage).mockClear();
                await userEvent.click(screen.getByRole("button", { name: "Close" }));
            });

            it("should not start the DM", () => {
                expect(startDmOnFirstMessage).not.toHaveBeenCalled();
            });
        });
    });

    describe("when inviting a user with an unknown profile and »promptBeforeInviteUnknownUsers« setting = false", () => {
        beforeEach(async () => {
            mocked(startDmOnFirstMessage).mockClear();
            jest.spyOn(SettingsStore, "getValue").mockImplementation(
                (settingName) => settingName !== "promptBeforeInviteUnknownUsers",
            );
            render(<InviteDialog kind={InviteKind.Dm} onFinished={jest.fn()} />);
            await enterIntoSearchField(carolId);
            await userEvent.click(screen.getByRole("button", { name: "Go" }));
            // modal rendering has some weird sleeps - fake timers will mess up the entire test
            await sleep(100);
        });

        it("should not show the »invite anyway« dialog", () => {
            expect(screen.queryByText("The following users may not exist")).not.toBeInTheDocument();
        });

        it("should start the DM directly", () => {
            expect(startDmOnFirstMessage).toHaveBeenCalledWith(mockClient, [
                new DirectoryMember({
                    user_id: carolId,
                }),
            ]);
        });
    });

    it("should not suggest users from other server when room has m.federate=false", async () => {
        room.currentState.setStateEvents([mkRoomCreateEvent(bobId, roomId, { "m.federate": false })]);

        render(
            <InviteDialog
                kind={InviteKind.Invite}
                roomId={roomId}
                onFinished={jest.fn()}
                initialText="@localpart:server.tld"
            />,
        );
        await flushPromises();
        expect(screen.queryByText("@localpart:server.tld")).not.toBeInTheDocument();
    });
});