/*
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 { mocked } from "jest-mock";
import { MatrixClient, Room, RoomMember } from "matrix-js-sdk/src/matrix";

import {
    VoiceBroadcastPlaybacksStore,
    VoiceBroadcastPreRecording,
    VoiceBroadcastPreRecordingStore,
    VoiceBroadcastRecordingsStore,
} from "../../../src/voice-broadcast";
import { stubClient } from "../../test-utils";

describe("VoiceBroadcastPreRecordingStore", () => {
    const roomId = "!room:example.com";
    let client: MatrixClient;
    let room: Room;
    let sender: RoomMember;
    let playbacksStore: VoiceBroadcastPlaybacksStore;
    let recordingsStore: VoiceBroadcastRecordingsStore;
    let store: VoiceBroadcastPreRecordingStore;
    let preRecording1: VoiceBroadcastPreRecording;

    beforeAll(() => {
        client = stubClient();
        room = new Room(roomId, client, client.getUserId() || "");
        sender = new RoomMember(roomId, client.getUserId() || "");
        recordingsStore = new VoiceBroadcastRecordingsStore();
        playbacksStore = new VoiceBroadcastPlaybacksStore(recordingsStore);
    });

    beforeEach(() => {
        store = new VoiceBroadcastPreRecordingStore();
        jest.spyOn(store, "emit");
        jest.spyOn(store, "removeAllListeners");
        preRecording1 = new VoiceBroadcastPreRecording(room, sender, client, playbacksStore, recordingsStore);
        jest.spyOn(preRecording1, "off");
    });

    it("getCurrent() should return null", () => {
        expect(store.getCurrent()).toBeNull();
    });

    it("clearCurrent() should work", () => {
        store.clearCurrent();
        expect(store.getCurrent()).toBeNull();
    });

    describe("when setting a current recording", () => {
        beforeEach(() => {
            store.setCurrent(preRecording1);
        });

        it("getCurrent() should return the recording", () => {
            expect(store.getCurrent()).toBe(preRecording1);
        });

        it("should emit a changed event with the recording", () => {
            expect(store.emit).toHaveBeenCalledWith("changed", preRecording1);
        });

        describe("and calling destroy()", () => {
            beforeEach(() => {
                store.destroy();
            });

            it("should remove all listeners", () => {
                expect(store.removeAllListeners).toHaveBeenCalled();
            });

            it("should deregister from the pre-recordings", () => {
                expect(preRecording1.off).toHaveBeenCalledWith("dismiss", expect.any(Function));
            });
        });

        describe("and cancelling the pre-recording", () => {
            beforeEach(() => {
                preRecording1.cancel();
            });

            it("should clear the current recording", () => {
                expect(store.getCurrent()).toBeNull();
            });

            it("should emit a changed event with null", () => {
                expect(store.emit).toHaveBeenCalledWith("changed", null);
            });
        });

        describe("and setting the same pre-recording again", () => {
            beforeEach(() => {
                mocked(store.emit).mockClear();
                store.setCurrent(preRecording1);
            });

            it("should not emit a changed event", () => {
                expect(store.emit).not.toHaveBeenCalled();
            });
        });

        describe("and setting another pre-recording", () => {
            let preRecording2: VoiceBroadcastPreRecording;

            beforeEach(() => {
                mocked(store.emit).mockClear();
                mocked(preRecording1.off).mockClear();
                preRecording2 = new VoiceBroadcastPreRecording(room, sender, client, playbacksStore, recordingsStore);
                store.setCurrent(preRecording2);
            });

            it("should deregister from the current pre-recording", () => {
                expect(preRecording1.off).toHaveBeenCalledWith("dismiss", expect.any(Function));
            });

            it("getCurrent() should return the new recording", () => {
                expect(store.getCurrent()).toBe(preRecording2);
            });

            it("should emit a changed event with the new recording", () => {
                expect(store.emit).toHaveBeenCalledWith("changed", preRecording2);
            });
        });
    });
});