/*
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 { act, render, screen, waitFor } from "@testing-library/react";
import * as maplibregl from "maplibre-gl";
import { Beacon, Room, RoomMember, MatrixEvent, getBeaconInfoIdentifier } from "matrix-js-sdk/src/matrix";

import BeaconMarker from "../../../../src/components/views/beacon/BeaconMarker";
import MatrixClientContext from "../../../../src/contexts/MatrixClientContext";
import {
    getMockClientWithEventEmitter,
    makeBeaconEvent,
    makeBeaconInfoEvent,
    makeRoomWithStateEvents,
} from "../../../test-utils";
import { TILE_SERVER_WK_KEY } from "../../../../src/utils/WellKnownUtils";

describe("<BeaconMarker />", () => {
    // 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 aliceMember = new RoomMember(roomId, aliceId);

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

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

    // 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 }, "$alice-room1-1");
    const notLiveEvent = makeBeaconInfoEvent(aliceId, roomId, { isLive: false }, "$alice-room1-2");

    const geoUri1 = "geo:51,41";
    const location1 = makeBeaconEvent(aliceId, {
        beaconInfoId: defaultEvent.getId(),
        geoUri: geoUri1,
        timestamp: now + 1,
    });
    const geoUri2 = "geo:52,42";
    const location2 = makeBeaconEvent(aliceId, {
        beaconInfoId: defaultEvent.getId(),
        geoUri: geoUri2,
        timestamp: now + 10000,
    });

    const defaultProps = {
        map: mockMap,
        beacon: new Beacon(defaultEvent),
    };

    const renderComponent = (props = {}) => {
        const Wrapper = (wrapperProps = {}) => {
            return <MatrixClientContext.Provider value={mockClient} {...wrapperProps} />;
        };

        return render(<BeaconMarker {...defaultProps} {...props} />, {
            wrapper: Wrapper,
        });
    };

    beforeEach(() => {
        jest.clearAllMocks();
    });

    it("renders nothing when beacon is not live", () => {
        const room = setupRoom([notLiveEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(notLiveEvent));
        const { asFragment } = renderComponent({ beacon });
        expect(asFragment()).toMatchInlineSnapshot(`<DocumentFragment />`);
        expect(screen.queryByTestId("avatar-img")).not.toBeInTheDocument();
    });

    it("renders nothing when beacon has no location", () => {
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent));
        const { asFragment } = renderComponent({ beacon });
        expect(asFragment()).toMatchInlineSnapshot(`<DocumentFragment />`);
        expect(screen.queryByTestId("avatar-img")).not.toBeInTheDocument();
    });

    it("renders marker when beacon has location", async () => {
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent));
        beacon?.addLocations([location1]);
        const { asFragment } = renderComponent({ beacon });
        await waitFor(() => {
            expect(screen.getByTestId("avatar-img")).toBeInTheDocument();
        });
        expect(asFragment()).toMatchSnapshot();
    });

    it("updates with new locations", () => {
        const lonLat1 = { lon: 41, lat: 51 };
        const lonLat2 = { lon: 42, lat: 52 };
        const room = setupRoom([defaultEvent]);
        const beacon = room.currentState.beacons.get(getBeaconInfoIdentifier(defaultEvent));
        beacon?.addLocations([location1]);

        // render the component then add a new location, check mockMarker called as expected
        renderComponent({ beacon });
        expect(mockMarker.setLngLat).toHaveBeenLastCalledWith(lonLat1);
        expect(mockMarker.addTo).toHaveBeenCalledWith(mockMap);

        // add a location, check mockMarker called with new location details
        act(() => {
            beacon?.addLocations([location2]);
        });
        expect(mockMarker.setLngLat).toHaveBeenLastCalledWith(lonLat2);
        expect(mockMarker.addTo).toHaveBeenCalledWith(mockMap);
    });
});