openclaw/dist/realtime-transcription-provider-pN7dze0m.js

Multi-channel AI gateway with extensible messaging integrations

import { c as normalizeOptionalString } from "./string-coerce-mnp54Vah.js";
import { i as asOptionalRecord } from "./record-coerce-DHZ4bFlT.js";
import { g as parseFiniteNumber } from "./number-coercion-CJQ8TR--.js";
import { u as normalizeResolvedSecretInputString } from "./types.secrets-_0JOMGE5.js";
import { n as parseBooleanValue } from "./boolean-By0bZpFH.js";
import "./string-coerce-runtime-CEGJWkQ_.js";
import "./secret-input-DVCzFGxN.js";
import { t as createRealtimeTranscriptionWebSocketSession } from "./realtime-transcription-DMdRb-KG.js";
import { n as DEFAULT_DEEPGRAM_AUDIO_MODEL } from "./audio-ClZX9DVj.js";
//#region extensions/deepgram/realtime-transcription-provider.ts
const DEEPGRAM_REALTIME_DEFAULT_SAMPLE_RATE = 8e3;
const DEEPGRAM_REALTIME_DEFAULT_ENCODING = "mulaw";
const DEEPGRAM_REALTIME_DEFAULT_ENDPOINTING_MS = 800;
const DEEPGRAM_REALTIME_CONNECT_TIMEOUT_MS = 1e4;
const DEEPGRAM_REALTIME_CLOSE_TIMEOUT_MS = 5e3;
const DEEPGRAM_REALTIME_MAX_RECONNECT_ATTEMPTS = 5;
const DEEPGRAM_REALTIME_RECONNECT_DELAY_MS = 1e3;
const DEEPGRAM_REALTIME_MAX_QUEUED_BYTES = 2 * 1024 * 1024;
function readNestedDeepgramConfig(rawConfig) {
	const raw = asOptionalRecord(rawConfig);
	return asOptionalRecord(asOptionalRecord(raw?.providers)?.deepgram ?? raw?.deepgram ?? raw) ?? {};
}
function normalizeDeepgramEncoding(value) {
	const normalized = normalizeOptionalString(value)?.toLowerCase();
	if (!normalized) return;
	if (normalized === "pcm" || normalized === "pcm_s16le" || normalized === "linear16") return "linear16";
	if (normalized === "ulaw" || normalized === "g711_ulaw" || normalized === "g711-mulaw") return "mulaw";
	if (normalized === "g711_alaw" || normalized === "g711-alaw") return "alaw";
	if (normalized === "mulaw" || normalized === "alaw") return normalized;
	throw new Error(`Invalid Deepgram realtime transcription encoding: ${normalized}`);
}
function normalizeDeepgramRealtimeBaseUrl(value) {
	return normalizeOptionalString(value ?? process.env.DEEPGRAM_BASE_URL) ?? "https://api.deepgram.com/v1";
}
function toDeepgramRealtimeWsUrl(config) {
	const url = new URL(normalizeDeepgramRealtimeBaseUrl(config.baseUrl));
	url.protocol = url.protocol === "http:" ? "ws:" : "wss:";
	url.pathname = `${url.pathname.replace(/\/+$/, "")}/listen`;
	url.searchParams.set("model", config.model);
	url.searchParams.set("encoding", config.encoding);
	url.searchParams.set("sample_rate", String(config.sampleRate));
	url.searchParams.set("channels", "1");
	url.searchParams.set("interim_results", String(config.interimResults));
	url.searchParams.set("endpointing", String(config.endpointingMs));
	if (config.language) url.searchParams.set("language", config.language);
	return url.toString();
}
function normalizeProviderConfig(config) {
	const raw = readNestedDeepgramConfig(config);
	return {
		apiKey: normalizeResolvedSecretInputString({
			value: raw.apiKey,
			path: "plugins.entries.voice-call.config.streaming.providers.deepgram.apiKey"
		}),
		baseUrl: normalizeOptionalString(raw.baseUrl),
		model: normalizeOptionalString(raw.model ?? raw.sttModel),
		language: normalizeOptionalString(raw.language),
		sampleRate: parseFiniteNumber(raw.sampleRate ?? raw.sample_rate),
		encoding: normalizeDeepgramEncoding(raw.encoding),
		interimResults: parseBooleanValue(raw.interimResults ?? raw.interim_results),
		endpointingMs: parseFiniteNumber(raw.endpointingMs ?? raw.endpointing ?? raw.silenceDurationMs)
	};
}
function readErrorDetail(value) {
	if (typeof value === "string") return value;
	const record = asOptionalRecord(value);
	const message = normalizeOptionalString(record?.message);
	const code = normalizeOptionalString(record?.code);
	return message ?? code ?? "Deepgram realtime transcription error";
}
function readTranscriptText(event) {
	return normalizeOptionalString(event.channel?.alternatives?.[0]?.transcript);
}
function createDeepgramRealtimeTranscriptionSession(config) {
	let lastTranscript;
	let speechStarted = false;
	const emitTranscript = (text) => {
		if (text === lastTranscript) return;
		lastTranscript = text;
		config.onTranscript?.(text);
	};
	const handleEvent = (event) => {
		switch (event.type) {
			case "Results": {
				const text = readTranscriptText(event);
				if (!text) return;
				if (!speechStarted) {
					speechStarted = true;
					config.onSpeechStart?.();
				}
				if (event.is_final || event.speech_final) {
					emitTranscript(text);
					if (event.speech_final) speechStarted = false;
					return;
				}
				config.onPartial?.(text);
				return;
			}
			case "SpeechStarted":
				speechStarted = true;
				config.onSpeechStart?.();
				return;
			case "Error":
			case "error": config.onError?.(new Error(readErrorDetail(event.error ?? event.message)));
			default:
		}
	};
	return createRealtimeTranscriptionWebSocketSession({
		providerId: "deepgram",
		callbacks: config,
		url: () => toDeepgramRealtimeWsUrl(config),
		headers: { Authorization: `Token ${config.apiKey}` },
		readyOnOpen: true,
		connectTimeoutMs: DEEPGRAM_REALTIME_CONNECT_TIMEOUT_MS,
		closeTimeoutMs: DEEPGRAM_REALTIME_CLOSE_TIMEOUT_MS,
		maxReconnectAttempts: DEEPGRAM_REALTIME_MAX_RECONNECT_ATTEMPTS,
		reconnectDelayMs: DEEPGRAM_REALTIME_RECONNECT_DELAY_MS,
		maxQueuedBytes: DEEPGRAM_REALTIME_MAX_QUEUED_BYTES,
		connectTimeoutMessage: "Deepgram realtime transcription connection timeout",
		connectClosedBeforeReadyMessage: "Deepgram realtime transcription connection closed before ready",
		reconnectLimitMessage: "Deepgram realtime transcription reconnect limit reached",
		sendAudio: (audio, transport) => {
			transport.sendBinary(audio);
		},
		onClose: (transport) => {
			transport.sendJson({ type: "Finalize" });
		},
		onMessage: handleEvent
	});
}
function buildDeepgramRealtimeTranscriptionProvider() {
	return {
		id: "deepgram",
		label: "Deepgram Realtime Transcription",
		aliases: ["deepgram-realtime", "nova-3-streaming"],
		defaultModel: DEFAULT_DEEPGRAM_AUDIO_MODEL,
		autoSelectOrder: 35,
		resolveConfig: ({ rawConfig }) => normalizeProviderConfig(rawConfig),
		isConfigured: ({ providerConfig }) => Boolean(normalizeProviderConfig(providerConfig).apiKey || process.env.DEEPGRAM_API_KEY),
		createSession: (req) => {
			const config = normalizeProviderConfig(req.providerConfig);
			const apiKey = config.apiKey || process.env.DEEPGRAM_API_KEY;
			if (!apiKey) throw new Error("Deepgram API key missing");
			return createDeepgramRealtimeTranscriptionSession({
				...req,
				apiKey,
				baseUrl: normalizeDeepgramRealtimeBaseUrl(config.baseUrl),
				model: config.model ?? "nova-3",
				sampleRate: config.sampleRate ?? DEEPGRAM_REALTIME_DEFAULT_SAMPLE_RATE,
				encoding: config.encoding ?? DEEPGRAM_REALTIME_DEFAULT_ENCODING,
				interimResults: config.interimResults ?? true,
				endpointingMs: config.endpointingMs ?? DEEPGRAM_REALTIME_DEFAULT_ENDPOINTING_MS,
				language: config.language
			});
		}
	};
}
const testing = {
	normalizeProviderConfig,
	toDeepgramRealtimeWsUrl
};
//#endregion
export { testing as n, buildDeepgramRealtimeTranscriptionProvider as t };