/*
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 { mocked } from "jest-mock";
import { act, fireEvent, render } from "@testing-library/react";
import { Beacon, BeaconIdentifier } from "matrix-js-sdk/src/matrix";

import LeftPanelLiveShareWarning from "../../../../src/components/views/beacon/LeftPanelLiveShareWarning";
import { OwnBeaconStore, OwnBeaconStoreEvent } from "../../../../src/stores/OwnBeaconStore";
import { flushPromises, makeBeaconInfoEvent } from "../../../test-utils";
import dispatcher from "../../../../src/dispatcher/dispatcher";
import { Action } from "../../../../src/dispatcher/actions";

jest.mock("../../../../src/stores/OwnBeaconStore", () => {
    // eslint-disable-next-line @typescript-eslint/no-var-requires
    const EventEmitter = require("events");
    class MockOwnBeaconStore extends EventEmitter {
        public getLiveBeaconIdsWithLocationPublishError = jest.fn().mockReturnValue([]);
        public getBeaconById = jest.fn();
        public getLiveBeaconIds = jest.fn().mockReturnValue([]);
        public readonly beaconUpdateErrors = new Map<BeaconIdentifier, Error>();
        public readonly beacons = new Map<BeaconIdentifier, Beacon>();
    }
    return {
        // @ts-ignore
        ...jest.requireActual("../../../../src/stores/OwnBeaconStore"),
        OwnBeaconStore: {
            instance: new MockOwnBeaconStore() as unknown as OwnBeaconStore,
        },
    };
});

describe("<LeftPanelLiveShareWarning />", () => {
    const getComponent = (props = {}) => render(<LeftPanelLiveShareWarning {...props} />);

    const roomId1 = "!room1:server";
    const roomId2 = "!room2:server";
    const aliceId = "@alive:server";

    const now = 1647270879403;
    const HOUR_MS = 3600000;

    beforeEach(() => {
        jest.spyOn(global.Date, "now").mockReturnValue(now);
        jest.spyOn(dispatcher, "dispatch")
            .mockClear()
            .mockImplementation(() => {});

        OwnBeaconStore.instance.beaconUpdateErrors.clear();
    });

    afterAll(() => {
        jest.spyOn(global.Date, "now").mockRestore();

        jest.restoreAllMocks();
    });
    // 12h old, 12h left
    const beacon1 = new Beacon(
        makeBeaconInfoEvent(aliceId, roomId1, { timeout: HOUR_MS * 24, timestamp: now - 12 * HOUR_MS }, "$1"),
    );
    // 10h left
    const beacon2 = new Beacon(makeBeaconInfoEvent(aliceId, roomId2, { timeout: HOUR_MS * 10, timestamp: now }, "$2"));

    it("renders nothing when user has no live beacons", () => {
        const { container } = getComponent();
        expect(container.innerHTML).toBeFalsy();
    });

    describe("when user has live location monitor", () => {
        beforeAll(() => {
            mocked(OwnBeaconStore.instance).getBeaconById.mockImplementation((beaconId) => {
                if (beaconId === beacon1.identifier) {
                    return beacon1;
                }
                return beacon2;
            });
        });

        beforeEach(() => {
            // @ts-ignore writing to readonly variable
            mocked(OwnBeaconStore.instance).isMonitoringLiveLocation = true;
            mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([]);
            mocked(OwnBeaconStore.instance).getLiveBeaconIds.mockReturnValue([beacon2.identifier, beacon1.identifier]);
        });

        afterAll(() => {
            jest.spyOn(document, "addEventListener").mockRestore();
        });

        it("renders correctly when not minimized", () => {
            const { asFragment } = getComponent();
            expect(asFragment()).toMatchSnapshot();
        });

        it("goes to room of latest beacon when clicked", () => {
            const { container } = getComponent();
            const dispatchSpy = jest.spyOn(dispatcher, "dispatch");

            fireEvent.click(container.querySelector("[role=button]")!);

            expect(dispatchSpy).toHaveBeenCalledWith({
                action: Action.ViewRoom,
                metricsTrigger: undefined,
                // latest beacon's room
                room_id: roomId2,
                event_id: beacon2.beaconInfoId,
                highlighted: true,
                scroll_into_view: true,
            });
        });

        it("renders correctly when minimized", () => {
            const { asFragment } = getComponent({ isMinimized: true });
            expect(asFragment()).toMatchSnapshot();
        });

        it("renders location publish error", () => {
            mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([
                beacon1.identifier,
            ]);
            const { asFragment } = getComponent();
            expect(asFragment()).toMatchSnapshot();
        });

        it("goes to room of latest beacon with location publish error when clicked", () => {
            mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([
                beacon1.identifier,
            ]);
            const { container } = getComponent();
            const dispatchSpy = jest.spyOn(dispatcher, "dispatch");

            fireEvent.click(container.querySelector("[role=button]")!);

            expect(dispatchSpy).toHaveBeenCalledWith({
                action: Action.ViewRoom,
                metricsTrigger: undefined,
                // error beacon's room
                room_id: roomId1,
                event_id: beacon1.beaconInfoId,
                highlighted: true,
                scroll_into_view: true,
            });
        });

        it("goes back to default style when wire errors are cleared", () => {
            mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([
                beacon1.identifier,
            ]);
            const { container, rerender } = getComponent();
            // error mode
            expect(container.querySelector(".mx_LeftPanelLiveShareWarning")?.textContent).toEqual(
                "An error occurred whilst sharing your live location",
            );

            act(() => {
                mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([]);
                OwnBeaconStore.instance.emit(OwnBeaconStoreEvent.LocationPublishError, "abc");
            });

            rerender(<LeftPanelLiveShareWarning />);

            // default mode
            expect(container.querySelector(".mx_LeftPanelLiveShareWarning")?.textContent).toEqual(
                "You are sharing your live location",
            );
        });

        it("removes itself when user stops having live beacons", async () => {
            const { container, rerender } = getComponent({ isMinimized: true });
            // started out rendered
            expect(container.innerHTML).toBeTruthy();

            act(() => {
                // @ts-ignore writing to readonly variable
                mocked(OwnBeaconStore.instance).isMonitoringLiveLocation = false;
                OwnBeaconStore.instance.emit(OwnBeaconStoreEvent.MonitoringLivePosition);
            });

            await flushPromises();
            rerender(<LeftPanelLiveShareWarning />);

            expect(container.innerHTML).toBeFalsy();
        });

        it("refreshes beacon liveness monitors when pagevisibilty changes to visible", () => {
            OwnBeaconStore.instance.beacons.set(beacon1.identifier, beacon1);
            OwnBeaconStore.instance.beacons.set(beacon2.identifier, beacon2);
            const beacon1MonitorSpy = jest.spyOn(beacon1, "monitorLiveness");
            const beacon2MonitorSpy = jest.spyOn(beacon1, "monitorLiveness");

            jest.spyOn(document, "addEventListener").mockImplementation((_e, listener) =>
                (listener as EventListener)(new Event("")),
            );

            expect(beacon1MonitorSpy).not.toHaveBeenCalled();

            getComponent();

            expect(beacon1MonitorSpy).toHaveBeenCalled();
            expect(beacon2MonitorSpy).toHaveBeenCalled();
        });

        describe("stopping errors", () => {
            it("renders stopping error", () => {
                OwnBeaconStore.instance.beaconUpdateErrors.set(beacon2.identifier, new Error("error"));
                const { container } = getComponent();
                expect(container.textContent).toEqual("An error occurred while stopping your live location");
            });

            it("starts rendering stopping error on beaconUpdateError emit", () => {
                const { container } = getComponent();
                // no error
                expect(container.textContent).toEqual("You are sharing your live location");

                act(() => {
                    OwnBeaconStore.instance.beaconUpdateErrors.set(beacon2.identifier, new Error("error"));
                    OwnBeaconStore.instance.emit(OwnBeaconStoreEvent.BeaconUpdateError, beacon2.identifier, true);
                });

                expect(container.textContent).toEqual("An error occurred while stopping your live location");
            });

            it("renders stopping error when beacons have stopping and location errors", () => {
                mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([
                    beacon1.identifier,
                ]);
                OwnBeaconStore.instance.beaconUpdateErrors.set(beacon2.identifier, new Error("error"));
                const { container } = getComponent();
                expect(container.textContent).toEqual("An error occurred while stopping your live location");
            });

            it("goes to room of latest beacon with stopping error when clicked", () => {
                mocked(OwnBeaconStore.instance).getLiveBeaconIdsWithLocationPublishError.mockReturnValue([
                    beacon1.identifier,
                ]);
                OwnBeaconStore.instance.beaconUpdateErrors.set(beacon2.identifier, new Error("error"));
                const { container } = getComponent();
                const dispatchSpy = jest.spyOn(dispatcher, "dispatch");

                fireEvent.click(container.querySelector("[role=button]")!);

                expect(dispatchSpy).toHaveBeenCalledWith({
                    action: Action.ViewRoom,
                    metricsTrigger: undefined,
                    // stopping error beacon's room
                    room_id: beacon2.roomId,
                    event_id: beacon2.beaconInfoId,
                    highlighted: true,
                    scroll_into_view: true,
                });
            });
        });
    });
});