/*
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 { act, fireEvent, render, RenderResult, waitFor } from "@testing-library/react";
import { MatrixClient, MatrixEvent, Room, RoomMember, getBeaconInfoIdentifier } from "matrix-js-sdk/src/matrix";
import * as maplibregl from "maplibre-gl";
import { mocked } from "jest-mock";

import BeaconViewDialog from "../../../../src/components/views/beacon/BeaconViewDialog";
import {
    getMockClientWithEventEmitter,
    makeBeaconEvent,
    makeBeaconInfoEvent,
    makeRoomWithBeacons,
    makeRoomWithStateEvents,
} from "../../../test-utils";
import { TILE_SERVER_WK_KEY } from "../../../../src/utils/WellKnownUtils";
import { OwnBeaconStore } from "../../../../src/stores/OwnBeaconStore";

describe("<BeaconViewDialog />", () => {
    // 14.03.2022 16:15
    const now = 1647270879403;
    // stable date for snapshots
    jest.spyOn(global.Date, "now").mockReturnValue(now);
    const roomId = "!room:server";
    const aliceId = "@alice:server";
    const bobId = "@bob:server";

    const aliceMember = new RoomMember(roomId, aliceId);

    const mockClient = getMockClientWithEventEmitter({
        getClientWellKnown: jest.fn().mockReturnValue({
            [TILE_SERVER_WK_KEY.name]: { map_style_url: "maps.com" },
        }),
        getUserId: jest.fn().mockReturnValue(bobId),
        getRoom: jest.fn(),
        isGuest: jest.fn().mockReturnValue(false),
        getVisibleRooms: jest.fn().mockReturnValue([]),
    });

    const mapOptions = { container: {} as unknown as HTMLElement, style: "" };
    const mockMap = new maplibregl.Map(mapOptions);
    const mockMarker = new maplibregl.Marker();

    // make fresh rooms every time
    // as we update room state
    const setupRoom = (stateEvents: MatrixEvent[] = []): Room => {
        const room1 = makeRoomWithStateEvents(stateEvents, { roomId, mockClient });
        jest.spyOn(room1, "getMember").mockReturnValue(aliceMember);

        return room1;
    };

    const defaultEvent = makeBeaconInfoEvent(aliceId, roomId, { isLive: true }, "$alice-room1-1");

    const location1 = makeBeaconEvent(aliceId, {
        beaconInfoId: defaultEvent.getId(),
        geoUri: "geo:51,41",
        timestamp: now + 1,
    });

    const defaultProps = {
        onFinished: jest.fn(),
        roomId,
        matrixClient: mockClient as MatrixClient,
    };

    const getComponent = (props = {}): RenderResult => render(<BeaconViewDialog {...defaultProps} {...props} />);

    const openSidebar = (getByTestId: RenderResult["getByTestId"]) => {
        fireEvent.click(getByTestId("beacon-view-dialog-open-sidebar"));
    };

    beforeEach(() => {
        jest.spyOn(OwnBeaconStore.instance, "getLiveBeaconIds").mockRestore();
        jest.spyOn(OwnBeaconStore.instance, "getBeaconById").mockRestore();
        jest.spyOn(global.Date, "now").mockReturnValue(now);
        jest.clearAllMocks();
    });

    it("renders a map with markers", async () => {
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
        beacon.addLocations([location1]);
        getComponent();
        // centered on default event
        expect(mockMap.setCenter).toHaveBeenCalledWith({
            lon: 41,
            lat: 51,
        });
        // marker added
        await waitFor(() => {
            expect(mockMarker.addTo).toHaveBeenCalledWith(mockMap);
        });
    });

    it("does not render any own beacon status when user is not live sharing", () => {
        // default event belongs to alice, we are bob
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
        beacon.addLocations([location1]);
        const { queryByText } = getComponent();
        expect(queryByText("Live location enabled")).not.toBeInTheDocument();
    });

    it("renders own beacon status when user is live sharing", () => {
        // default event belongs to alice
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
        beacon.addLocations([location1]);
        // mock own beacon store to show default event as alice's live beacon
        jest.spyOn(OwnBeaconStore.instance, "getLiveBeaconIds").mockReturnValue([beacon.identifier]);
        jest.spyOn(OwnBeaconStore.instance, "getBeaconById").mockReturnValue(beacon);
        const { container } = getComponent();
        expect(container.querySelector(".mx_DialogOwnBeaconStatus")).toMatchSnapshot();
    });

    it("updates markers on changes to beacons", async () => {
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
        beacon.addLocations([location1]);
        const { container } = getComponent();

        // one marker
        expect(mockMarker.addTo).toHaveBeenCalledTimes(1);
        expect(container.getElementsByClassName("mx_Marker").length).toEqual(1);

        const anotherBeaconEvent = makeBeaconInfoEvent(bobId, roomId, { isLive: true }, "$bob-room1-1");
        act(() => {
            // emits RoomStateEvent.BeaconLiveness
            room.currentState.setStateEvents([anotherBeaconEvent]);
            const beacon2 = room.currentState.beacons.get(getBeaconInfoIdentifier(anotherBeaconEvent))!;
            beacon2.addLocations([location1]);
        });

        // two markers now!
        expect(container.getElementsByClassName("mx_Marker").length).toEqual(2);
    });

    it("does not update bounds or center on changing beacons", () => {
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
        beacon.addLocations([location1]);
        const { container } = getComponent();
        expect(container.getElementsByClassName("mx_Marker").length).toEqual(1);

        const anotherBeaconEvent = makeBeaconInfoEvent(bobId, roomId, { isLive: true }, "$bob-room1-1");
        act(() => {
            // emits RoomStateEvent.BeaconLiveness
            room.currentState.setStateEvents([anotherBeaconEvent]);
            const beacon2 = room.currentState.beacons.get(getBeaconInfoIdentifier(anotherBeaconEvent))!;
            beacon2.addLocations([location1]);
        });
        // called once on init
        expect(mockMap.setCenter).toHaveBeenCalledTimes(1);
        expect(mockMap.fitBounds).toHaveBeenCalledTimes(1);
    });

    it("renders a fallback when there are no locations", () => {
        // this is a cornercase, should not be a reachable state in UI anymore
        const onFinished = jest.fn();
        const room = setupRoom([defaultEvent]);
        room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent));
        const { getByTestId } = getComponent({ onFinished });

        // map placeholder
        expect(getByTestId("beacon-view-dialog-map-fallback")).toMatchSnapshot();

        fireEvent.click(getByTestId("beacon-view-dialog-fallback-close"));

        expect(onFinished).toHaveBeenCalled();
    });

    it("renders map without markers when no live beacons remain", () => {
        const onFinished = jest.fn();
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
        beacon.addLocations([location1]);
        const { container } = getComponent({ onFinished });
        expect(container.getElementsByClassName("mx_Marker").length).toEqual(1);

        // this will replace the defaultEvent
        // leading to no more live beacons
        const anotherBeaconEvent = makeBeaconInfoEvent(aliceId, roomId, { isLive: false }, "$alice-room1-2");

        expect(mockMap.setCenter).toHaveBeenCalledWith({ lat: 51, lon: 41 });
        // reset call counts
        mocked(mockMap.setCenter).mockClear();
        mocked(mockMap.fitBounds).mockClear();

        act(() => {
            // emits RoomStateEvent.BeaconLiveness
            room.currentState.setStateEvents([anotherBeaconEvent]);
        });

        // no more avatars
        expect(container.getElementsByClassName("mx_Marker").length).toEqual(0);
        // map still rendered
        expect(container.querySelector("#mx_Map_mx_BeaconViewDialog")).toBeInTheDocument();
        // map location unchanged
        expect(mockMap.setCenter).not.toHaveBeenCalled();
        expect(mockMap.fitBounds).not.toHaveBeenCalled();
    });

    describe("sidebar", () => {
        it("opens sidebar on view list button click", () => {
            const room = setupRoom([defaultEvent]);
            const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
            beacon.addLocations([location1]);
            const { container, getByTestId } = getComponent();

            openSidebar(getByTestId);

            expect(container.querySelector(".mx_DialogSidebar")).toBeInTheDocument();
        });

        it("closes sidebar on close button click", () => {
            const room = setupRoom([defaultEvent]);
            const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent))!;
            beacon.addLocations([location1]);
            const { container, getByTestId } = getComponent();

            // open the sidebar
            openSidebar(getByTestId);

            expect(container.querySelector(".mx_DialogSidebar")).toBeInTheDocument();

            // now close it
            fireEvent.click(getByTestId("dialog-sidebar-close"));

            expect(container.querySelector(".mx_DialogSidebar")).not.toBeInTheDocument();
        });
    });

    describe("focused beacons", () => {
        const beacon2Event = makeBeaconInfoEvent(bobId, roomId, { isLive: true }, "$bob-room1-2");

        const location2 = makeBeaconEvent(bobId, {
            beaconInfoId: beacon2Event.getId(),
            geoUri: "geo:33,22",
            timestamp: now + 1,
        });

        const fitBoundsOptions = { maxZoom: 15, padding: 100 };

        it("opens map with both beacons in view on first load without initialFocusedBeacon", () => {
            const [beacon1, beacon2] = makeRoomWithBeacons(
                roomId,
                mockClient,
                [defaultEvent, beacon2Event],
                [location1, location2],
            );

            getComponent({ beacons: [beacon1, beacon2] });

            // start centered on mid point between both beacons
            expect(mockMap.setCenter).toHaveBeenCalledWith({ lat: 42, lon: 31.5 });
            // only called once
            expect(mockMap.setCenter).toHaveBeenCalledTimes(1);
            // bounds fit both beacons, only called once
            expect(mockMap.fitBounds).toHaveBeenCalledWith(
                new maplibregl.LngLatBounds([22, 33], [41, 51]),
                fitBoundsOptions,
            );
            expect(mockMap.fitBounds).toHaveBeenCalledTimes(1);
        });

        it("opens map with both beacons in view on first load with an initially focused beacon", () => {
            const [beacon1, beacon2] = makeRoomWithBeacons(
                roomId,
                mockClient,
                [defaultEvent, beacon2Event],
                [location1, location2],
            );

            getComponent({ beacons: [beacon1, beacon2], initialFocusedBeacon: beacon1 });

            // start centered on initialFocusedBeacon
            expect(mockMap.setCenter).toHaveBeenCalledWith({ lat: 51, lon: 41 });
            // only called once
            expect(mockMap.setCenter).toHaveBeenCalledTimes(1);
            // bounds fit both beacons, only called once
            expect(mockMap.fitBounds).toHaveBeenCalledWith(
                new maplibregl.LngLatBounds([22, 33], [41, 51]),
                fitBoundsOptions,
            );
            expect(mockMap.fitBounds).toHaveBeenCalledTimes(1);
        });

        it("focuses on beacon location on sidebar list item click", () => {
            const [beacon1, beacon2] = makeRoomWithBeacons(
                roomId,
                mockClient,
                [defaultEvent, beacon2Event],
                [location1, location2],
            );

            const { container, getByTestId } = getComponent({ beacons: [beacon1, beacon2] });

            // reset call counts on map mocks after initial render
            jest.clearAllMocks();

            openSidebar(getByTestId);

            act(() => {
                const listItems = container.querySelectorAll(".mx_BeaconListItem");
                // click on the first beacon in the list
                fireEvent.click(listItems[0]!);
            });

            // centered on clicked beacon
            expect(mockMap.setCenter).toHaveBeenCalledWith({ lat: 51, lon: 41 });
            // only called once
            expect(mockMap.setCenter).toHaveBeenCalledTimes(1);
            // bounds fitted just to clicked beacon
            expect(mockMap.fitBounds).toHaveBeenCalledWith(
                new maplibregl.LngLatBounds([41, 51], [41, 51]),
                fitBoundsOptions,
            );
            expect(mockMap.fitBounds).toHaveBeenCalledTimes(1);
        });

        it("refocuses on same beacon when clicking list item again", () => {
            // test the map responds to refocusing the same beacon
            const [beacon1, beacon2] = makeRoomWithBeacons(
                roomId,
                mockClient,
                [defaultEvent, beacon2Event],
                [location1, location2],
            );

            const { container, getByTestId } = getComponent({ beacons: [beacon1, beacon2] });

            // reset call counts on map mocks after initial render
            jest.clearAllMocks();

            openSidebar(getByTestId);

            act(() => {
                // click on the second beacon in the list
                const listItems = container.querySelectorAll(".mx_BeaconListItem");
                fireEvent.click(listItems[1]!);
            });

            const expectedBounds = new maplibregl.LngLatBounds([22, 33], [22, 33]);

            // date is mocked but this relies on timestamp, manually mock a tick
            jest.spyOn(global.Date, "now").mockReturnValue(now + 1);

            act(() => {
                // click on the second beacon in the list
                const listItems = container.querySelectorAll(".mx_BeaconListItem");
                fireEvent.click(listItems[1]!);
            });

            // centered on clicked beacon
            expect(mockMap.setCenter).toHaveBeenCalledWith({ lat: 33, lon: 22 });
            // bounds fitted just to clicked beacon
            expect(mockMap.fitBounds).toHaveBeenCalledWith(expectedBounds, fitBoundsOptions);
            // each called once per click
            expect(mockMap.setCenter).toHaveBeenCalledTimes(2);
            expect(mockMap.fitBounds).toHaveBeenCalledTimes(2);
        });
    });
});