/*
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 { SDPStreamMetadataPurpose } from "../../../src/webrtc/callEventTypes";
import { CallFeed } from "../../../src/webrtc/callFeed";
import { TestClient } from "../../TestClient";
import { MockMatrixCall, MockMediaStream, MockMediaStreamTrack } from "../../test-utils/webrtc";
import { CallEvent, CallState } from "../../../src/webrtc/call";

describe("CallFeed", () => {
    const roomId = "room1";
    let client: TestClient;
    let call: MockMatrixCall;
    let feed: CallFeed;

    beforeEach(() => {
        client = new TestClient("@alice:foo", "somedevice", "token", undefined, {});
        call = new MockMatrixCall(roomId);

        feed = new CallFeed({
            client: client.client,
            call: call.typed(),
            roomId,
            userId: "user1",
            // @ts-ignore Mock
            stream: new MockMediaStream("stream1"),
            purpose: SDPStreamMetadataPurpose.Usermedia,
            audioMuted: false,
            videoMuted: false,
        });
    });

    afterEach(() => {
        client.stop();
    });

    describe("muting", () => {
        describe("muting by default", () => {
            it("should mute audio by default", () => {
                expect(feed.isAudioMuted()).toBeTruthy();
            });

            it("should mute video by default", () => {
                expect(feed.isVideoMuted()).toBeTruthy();
            });
        });

        describe("muting after adding a track", () => {
            it("should un-mute audio", () => {
                // @ts-ignore Mock
                feed.stream.addTrack(new MockMediaStreamTrack("track", "audio", true));
                expect(feed.isAudioMuted()).toBeFalsy();
            });

            it("should un-mute video", () => {
                // @ts-ignore Mock
                feed.stream.addTrack(new MockMediaStreamTrack("track", "video", true));
                expect(feed.isVideoMuted()).toBeFalsy();
            });
        });

        describe("muting after calling setAudioVideoMuted()", () => {
            it("should mute audio by default", () => {
                // @ts-ignore Mock
                feed.stream.addTrack(new MockMediaStreamTrack("track", "audio", true));
                feed.setAudioVideoMuted(true, false);
                expect(feed.isAudioMuted()).toBeTruthy();
            });

            it("should mute video by default", () => {
                // @ts-ignore Mock
                feed.stream.addTrack(new MockMediaStreamTrack("track", "video", true));
                feed.setAudioVideoMuted(false, true);
                expect(feed.isVideoMuted()).toBeTruthy();
            });
        });
    });

    describe("connected", () => {
        it.each([true, false])("should always be connected, if isLocal()", (val: boolean) => {
            // @ts-ignore
            feed._connected = val;
            jest.spyOn(feed, "isLocal").mockReturnValue(true);

            expect(feed.connected).toBeTruthy();
        });

        it.each([
            [CallState.Connected, true],
            [CallState.Connecting, false],
        ])("should react to call state, when !isLocal()", (state: CallState, expected: boolean) => {
            call.emit(CallEvent.State, state, CallState.InviteSent, call.typed());

            expect(feed.connected).toBe(expected);
        });
    });
});