104 lines
3.3 KiB
TypeScript
104 lines
3.3 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { ISendEventResponse, MatrixClient, Room, RoomStateEvent } from "matrix-js-sdk/src/matrix";
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import { defer } from "matrix-js-sdk/src/utils";
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import {
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VoiceBroadcastInfoEventContent,
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VoiceBroadcastInfoEventType,
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VoiceBroadcastInfoState,
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VoiceBroadcastRecordingsStore,
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VoiceBroadcastRecording,
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getChunkLength,
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VoiceBroadcastPlaybacksStore,
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} from "..";
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import { checkVoiceBroadcastPreConditions } from "./checkVoiceBroadcastPreConditions";
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const startBroadcast = async (
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room: Room,
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client: MatrixClient,
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recordingsStore: VoiceBroadcastRecordingsStore,
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): Promise<VoiceBroadcastRecording> => {
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const { promise, resolve, reject } = defer<VoiceBroadcastRecording>();
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const userId = client.getUserId();
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if (!userId) {
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reject("unable to start voice broadcast if current user is unkonwn");
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return promise;
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}
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let result: ISendEventResponse | null = null;
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const onRoomStateEvents = () => {
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if (!result) return;
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const voiceBroadcastEvent = room.currentState.getStateEvents(VoiceBroadcastInfoEventType, userId);
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if (voiceBroadcastEvent?.getId() === result.event_id) {
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room.off(RoomStateEvent.Events, onRoomStateEvents);
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const recording = new VoiceBroadcastRecording(
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voiceBroadcastEvent,
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client,
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);
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recordingsStore.setCurrent(recording);
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recording.start();
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resolve(recording);
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}
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};
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room.on(RoomStateEvent.Events, onRoomStateEvents);
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// XXX Michael W: refactor to live event
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result = await client.sendStateEvent(
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room.roomId,
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VoiceBroadcastInfoEventType,
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{
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device_id: client.getDeviceId(),
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state: VoiceBroadcastInfoState.Started,
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chunk_length: getChunkLength(),
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} as VoiceBroadcastInfoEventContent,
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userId,
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);
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return promise;
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};
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/**
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* Starts a new Voice Broadcast Recording, if
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* - the user has the permissions to do so in the room
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* - the user is not already recording a voice broadcast
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* - there is no other broadcast being recorded in the room, yet
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* Sends a voice_broadcast_info state event and waits for the event to actually appear in the room state.
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*/
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export const startNewVoiceBroadcastRecording = async (
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room: Room,
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client: MatrixClient,
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playbacksStore: VoiceBroadcastPlaybacksStore,
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recordingsStore: VoiceBroadcastRecordingsStore,
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): Promise<VoiceBroadcastRecording | null> => {
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if (!checkVoiceBroadcastPreConditions(room, client, recordingsStore)) {
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return null;
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}
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// pause and clear current playback (if any)
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playbacksStore.getCurrent()?.pause();
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playbacksStore.clearCurrent();
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return startBroadcast(room, client, recordingsStore);
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};
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