/*
Copyright 2024 New Vector Ltd.
Copyright 2021 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 } from "@testing-library/react";
import * as maplibregl from "maplibre-gl";
import { RoomMember, MatrixClient } from "matrix-js-sdk/src/matrix";
import { mocked } from "jest-mock";
import { logger } from "matrix-js-sdk/src/logger";

import LocationPicker from "../../../../src/components/views/location/LocationPicker";
import { LocationShareType } from "../../../../src/components/views/location/shareLocation";
import MatrixClientContext from "../../../../src/contexts/MatrixClientContext";
import { MatrixClientPeg } from "../../../../src/MatrixClientPeg";
import { getMockClientWithEventEmitter, mockPlatformPeg } from "../../../test-utils";
import { findMapStyleUrl, LocationShareError } from "../../../../src/utils/location";

jest.mock("../../../../src/utils/location/findMapStyleUrl", () => ({
    findMapStyleUrl: jest.fn().mockReturnValue("tileserver.com"),
}));

// dropdown uses this
mockPlatformPeg({ overrideBrowserShortcuts: jest.fn().mockReturnValue(false) });

describe("LocationPicker", () => {
    describe("<LocationPicker />", () => {
        const roomId = "!room:server.org";
        const userId = "@user:server.org";
        const sender = new RoomMember(roomId, userId);
        const defaultProps = {
            sender,
            shareType: LocationShareType.Own,
            onChoose: jest.fn(),
            onFinished: jest.fn(),
        };
        const mockClient = getMockClientWithEventEmitter({
            isGuest: jest.fn(),
            getClientWellKnown: jest.fn(),
        });
        const getComponent = (props = {}): RenderResult =>
            render(<LocationPicker {...defaultProps} {...props} />, {
                wrapper: ({ children }) => (
                    <MatrixClientContext.Provider value={mockClient}>{children}</MatrixClientContext.Provider>
                ),
            });

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

        const mockGeolocationPosition = {
            coords: {
                latitude: 43.2,
                longitude: 12.4,
                altitude: 12.3,
                accuracy: 21,
            },
            timestamp: 123,
        };
        const mockClickEvent = {
            lngLat: {
                lat: 43.2,
                lng: 12.4,
            },
        };

        beforeEach(() => {
            jest.spyOn(logger, "error").mockRestore();
            jest.spyOn(MatrixClientPeg, "get").mockReturnValue(mockClient as unknown as MatrixClient);
            jest.clearAllMocks();
            mocked(mockMap).addControl.mockReset();
            mocked(findMapStyleUrl).mockReturnValue("tileserver.com");
        });

        it("displays error when map emits an error", () => {
            // suppress expected error log
            jest.spyOn(logger, "error").mockImplementation(() => {});
            const { getByTestId, getByText } = getComponent();

            act(() => {
                // @ts-ignore
                mocked(mockMap).emit("error", { error: "Something went wrong" });
            });

            expect(getByTestId("map-rendering-error")).toBeInTheDocument();
            expect(
                getByText(
                    "This homeserver is not configured correctly to display maps, " +
                        "or the configured map server may be unreachable.",
                ),
            ).toBeInTheDocument();
        });

        it("displays error when map display is not configured properly", () => {
            // suppress expected error log
            jest.spyOn(logger, "error").mockImplementation(() => {});
            mocked(findMapStyleUrl).mockImplementation(() => {
                throw new Error(LocationShareError.MapStyleUrlNotConfigured);
            });

            const { getByText } = getComponent();

            expect(getByText("This homeserver is not configured to display maps.")).toBeInTheDocument();
        });

        it("displays error when WebGl is not enabled", () => {
            // suppress expected error log
            jest.spyOn(logger, "error").mockImplementation(() => {});
            mocked(findMapStyleUrl).mockImplementation(() => {
                throw new Error("Failed to initialize WebGL");
            });

            const { getByText } = getComponent();

            expect(
                getByText("WebGL is required to display maps, please enable it in your browser settings."),
            ).toBeInTheDocument();
        });

        it("displays error when map setup throws", () => {
            // suppress expected error log
            jest.spyOn(logger, "error").mockImplementation(() => {});

            // throw an error
            mocked(mockMap).addControl.mockImplementation(() => {
                throw new Error("oups");
            });

            const { getByText } = getComponent();

            expect(
                getByText(
                    "This homeserver is not configured correctly to display maps, " +
                        "or the configured map server may be unreachable.",
                ),
            ).toBeInTheDocument();
        });

        it("initiates map with geolocation", () => {
            getComponent();

            expect(mockMap.addControl).toHaveBeenCalledWith(mockGeolocate);
            act(() => {
                // @ts-ignore
                mocked(mockMap).emit("load");
            });

            expect(mockGeolocate.trigger).toHaveBeenCalled();
        });

        const testUserLocationShareTypes = (shareType: LocationShareType.Own | LocationShareType.Live) => {
            describe("user location behaviours", () => {
                it("closes and displays error when geolocation errors", () => {
                    // suppress expected error log
                    jest.spyOn(logger, "error").mockImplementation(() => {});
                    const onFinished = jest.fn();
                    getComponent({ onFinished, shareType });

                    expect(mockMap.addControl).toHaveBeenCalledWith(mockGeolocate);
                    act(() => {
                        // @ts-ignore
                        mockMap.emit("load");
                        // @ts-ignore
                        mockGeolocate.emit("error", {});
                    });

                    // dialog is closed on error
                    expect(onFinished).toHaveBeenCalled();
                });

                it("sets position on geolocate event", () => {
                    const { container, getByTestId } = getComponent({ shareType });
                    act(() => {
                        // @ts-ignore
                        mocked(mockGeolocate).emit("geolocate", mockGeolocationPosition);
                    });

                    // marker added
                    expect(maplibregl.Marker).toHaveBeenCalled();
                    expect(mockMarker.setLngLat).toHaveBeenCalledWith(new maplibregl.LngLat(12.4, 43.2));
                    // submit button is enabled when position is truthy
                    expect(getByTestId("location-picker-submit-button")).not.toBeDisabled();
                    expect(container.querySelector(".mx_BaseAvatar")).toBeInTheDocument();
                });

                it("disables submit button until geolocation completes", () => {
                    const onChoose = jest.fn();
                    const { getByTestId } = getComponent({ shareType, onChoose });

                    // button is disabled
                    expect(getByTestId("location-picker-submit-button")).toBeDisabled();
                    fireEvent.click(getByTestId("location-picker-submit-button"));
                    // nothing happens on button click
                    expect(onChoose).not.toHaveBeenCalled();

                    act(() => {
                        // @ts-ignore
                        mocked(mockGeolocate).emit("geolocate", mockGeolocationPosition);
                    });

                    // submit button is enabled when position is truthy
                    expect(getByTestId("location-picker-submit-button")).not.toBeDisabled();
                });

                it("submits location", () => {
                    const onChoose = jest.fn();
                    const { getByTestId } = getComponent({ onChoose, shareType });
                    act(() => {
                        // @ts-ignore
                        mocked(mockGeolocate).emit("geolocate", mockGeolocationPosition);
                        // make sure button is enabled
                    });

                    fireEvent.click(getByTestId("location-picker-submit-button"));
                    // content of this call is tested in LocationShareMenu-test
                    expect(onChoose).toHaveBeenCalled();
                });
            });
        };

        describe("for Own location share type", () => {
            testUserLocationShareTypes(LocationShareType.Own);
        });

        describe("for Live location share type", () => {
            const shareType = LocationShareType.Live;
            testUserLocationShareTypes(shareType);

            it("renders live duration dropdown with default option", () => {
                const { getByText } = getComponent({ shareType });
                expect(getByText("Share for 15m")).toBeInTheDocument();
            });

            it("updates selected duration", () => {
                const { getByText, getByLabelText } = getComponent({ shareType });

                // open dropdown
                fireEvent.click(getByLabelText("Share for 15m"));

                fireEvent.click(getByText("Share for 1h"));

                // value updated
                expect(getByText("Share for 1h")).toMatchSnapshot();
            });
        });

        describe("for Pin drop location share type", () => {
            const shareType = LocationShareType.Pin;
            it("initiates map with geolocation", () => {
                getComponent({ shareType });

                expect(mockMap.addControl).toHaveBeenCalledWith(mockGeolocate);
                act(() => {
                    // @ts-ignore
                    mocked(mockMap).emit("load");
                });

                expect(mockGeolocate.trigger).toHaveBeenCalled();
            });

            it("removes geolocation control on geolocation error", () => {
                // suppress expected error log
                jest.spyOn(logger, "error").mockImplementation(() => {});
                const onFinished = jest.fn();
                getComponent({ onFinished, shareType });
                act(() => {
                    // @ts-ignore
                    mockMap.emit("load");
                    // @ts-ignore
                    mockGeolocate.emit("error", {});
                });

                expect(mockMap.removeControl).toHaveBeenCalledWith(mockGeolocate);
                // dialog is not closed
                expect(onFinished).not.toHaveBeenCalled();
            });

            it("does not set position on geolocate event", () => {
                mocked(maplibregl.Marker).mockClear();
                const { container } = getComponent({ shareType });
                act(() => {
                    // @ts-ignore
                    mocked(mockGeolocate).emit("geolocate", mockGeolocationPosition);
                });

                // marker not added
                expect(container.querySelector("mx_Marker")).not.toBeInTheDocument();
            });

            it("sets position on click event", () => {
                const { container } = getComponent({ shareType });
                act(() => {
                    // @ts-ignore
                    mocked(mockMap).emit("click", mockClickEvent);
                });

                // marker added
                expect(maplibregl.Marker).toHaveBeenCalled();
                expect(mockMarker.setLngLat).toHaveBeenCalledWith(new maplibregl.LngLat(12.4, 43.2));

                // marker is set, icon not avatar
                expect(container.querySelector(".mx_Marker_icon")).toBeInTheDocument();
            });

            it("submits location", () => {
                const onChoose = jest.fn();
                const { getByTestId } = getComponent({ onChoose, shareType });
                act(() => {
                    // @ts-ignore
                    mocked(mockMap).emit("click", mockClickEvent);
                });

                fireEvent.click(getByTestId("location-picker-submit-button"));

                // content of this call is tested in LocationShareMenu-test
                expect(onChoose).toHaveBeenCalled();
            });
        });
    });
});