Stream.ts•2.34 kB
/**
* Copyright (C) 2025 by Fonoster Inc (https://fonoster.com)
* http://github.com/fonoster/fonoster
*
* This file is part of Fonoster
*
* Licensed under the MIT License (the "License");
* you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* https://opensource.org/licenses/MIT
*
* 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 { Stream as StreamObj } from "stream";
import {
Messages,
StartStreamRequest,
StopStreamRequest,
StreamAudioFormat,
StreamDirection,
StreamPayload
} from "@fonoster/common";
import { z } from "zod";
import { Verb } from "./Verb";
class StartStream extends Verb<StartStreamRequest> {
getValidationSchema(): z.Schema {
return z.object({
direction: z
.nativeEnum(StreamDirection, { message: "Invalid stream direction" })
.optional(),
format: z
.nativeEnum(StreamAudioFormat, {
message: "Invalid stream audio direction"
})
.optional()
});
}
}
class StopStream extends Verb<StopStreamRequest> {
getValidationSchema(): z.Schema {
return z.object({
streamRef: z.string().uuid({ message: Messages.VALID_UUID })
});
}
}
class Stream {
stream: StreamObj;
constructor() {
this.stream = new StreamObj();
}
close() {
this.stream.removeAllListeners();
}
// Public API
onPayload(callback: (payload: StreamPayload) => void) {
this.stream.on("payloadOut", (payload: StreamPayload) => {
callback(payload);
});
}
write(payload: StreamPayload) {
this.stream.emit("payloadIn", payload);
}
// Private API
onPayloadIn(callback: (payload: StreamPayload) => void) {
this.stream.on("payloadIn", (payload) => {
callback(payload);
});
}
// Private API
emit(event: "payloadIn" | "payloadOut", payload: StreamPayload) {
this.stream.emit(event, payload);
}
// Private API
cleanup(callback: () => void) {
this.stream.on("close", callback);
}
}
export { StartStream, StopStream, Stream };