js-tts-wrapper/esm/factory.js

A JavaScript/TypeScript library that provides a unified API for working with multiple cloud-based Text-to-Speech (TTS) services

// Factory for TTS clients (browser/server compatible)
import { AzureTTSClient } from "./engines/azure.js";
import { ElevenLabsTTSClient } from "./engines/elevenlabs.js";
import { EspeakWasmTTSClient } from "./engines/espeak-wasm.js";
import { EspeakTTSClient } from "./engines/espeak.js";
import { GoogleTTSClient } from "./engines/google.js";
import { OpenAITTSClient } from "./engines/openai.js";
import { PlayHTTTSClient } from "./engines/playht.js";
import { PollyTTSClient } from "./engines/polly.js";
import { UpliftAITTSClient } from "./engines/upliftai.js";
import { SherpaOnnxWasmTTSClient } from "./engines/sherpaonnx-wasm.js";
import { SherpaOnnxTTSClient } from "./engines/sherpaonnx.js";
import { WatsonTTSClient } from "./engines/watson.js";
import { WitAITTSClient } from "./engines/witai.js";
import { SAPITTSClient } from "./engines/sapi.js";
// Import MockTTSClient for testing
let MockTTSClient;
try {
    // Dynamic import to avoid circular dependencies
    import("./__tests__/mock-tts-client.helper.js")
        .then((module) => {
        MockTTSClient = module.MockTTSClient;
    })
        .catch(() => {
        // Ignore errors
    });
}
catch (_e) {
    // Ignore errors
}
export function createTTSClient(engine, credentials) {
    const applyProperties = (client) => {
        if (!credentials || typeof client?.setProperty !== "function") {
            return client;
        }
        const rawProps = credentials.properties ??
            credentials.propertiesJson ??
            credentials.propertiesJSON;
        let parsedProps = null;
        if (typeof rawProps === "string") {
            try {
                parsedProps = JSON.parse(rawProps);
            }
            catch (error) {
                console.warn("Failed to parse properties JSON passed to factory:", error);
            }
        }
        else if (rawProps && typeof rawProps === "object") {
            parsedProps = rawProps;
        }
        if (parsedProps) {
            for (const [key, value] of Object.entries(parsedProps)) {
                try {
                    client.setProperty(key, value);
                }
                catch (error) {
                    console.warn(`Failed to apply property '${key}' in factory:`, error);
                }
            }
        }
        return client;
    };
    switch (engine) {
        case "azure":
            return applyProperties(new AzureTTSClient(credentials));
        case "google":
            return applyProperties(new GoogleTTSClient(credentials));
        case "polly":
            return applyProperties(new PollyTTSClient(credentials));
        case "elevenlabs":
            return applyProperties(new ElevenLabsTTSClient(credentials));
        case "openai":
            return applyProperties(new OpenAITTSClient(credentials));
        case "playht":
            return applyProperties(new PlayHTTTSClient(credentials));
        case "watson":
            return applyProperties(new WatsonTTSClient(credentials));
        case "witai":
            return applyProperties(new WitAITTSClient(credentials));
        case "upliftai":
            return applyProperties(new UpliftAITTSClient(credentials));
        case "sherpaonnx":
            return applyProperties(new SherpaOnnxTTSClient(credentials));
        case "sherpaonnx-wasm":
            return applyProperties(new SherpaOnnxWasmTTSClient(credentials));
        case "espeak":
            return applyProperties(new EspeakTTSClient(credentials));
        case "espeak-wasm":
            return applyProperties(new EspeakWasmTTSClient(credentials));
        case "sapi":
            return applyProperties(new SAPITTSClient(credentials));
        case "mock":
            if (MockTTSClient) {
                return applyProperties(new MockTTSClient());
            }
            throw new Error("MockTTSClient is not available. This is only available in development/testing environments.");
        default:
            throw new Error(`Engine '${engine}' is not supported in the factory.`);
    }
}