Add local MeloTTS support

src/setup-tts.ts

@@ -0,0 +1,60 @@
+import process from "node:process";
+import { mkdir, rm } from "node:fs/promises";
+import path from "node:path";
+import { spawn } from "node:child_process";
+
+import { loadConfig } from "./config.js";
+import { Logger } from "./logger.js";
+import { MeloTtsService } from "./services/melo-tts.js";
+
+async function run(command: string, args: string[], cwd = process.cwd()): Promise<void> {
+  await new Promise<void>((resolve, reject) => {
+    const child = spawn(command, args, {
+      cwd,
+      stdio: "inherit",
+      windowsHide: true,
+    });
+
+    child.on("error", reject);
+    child.on("exit", (code) => {
+      if (code === 0) {
+        resolve();
+        return;
+      }
+      reject(new Error(`${command} ${args.join(" ")} exited with code ${code ?? "null"}`));
+    });
+  });
+}
+
+export async function setupTts(): Promise<void> {
+  const config = loadConfig();
+  const logger = new Logger(config.DEBUG ? config.LOG_LEVEL : "error");
+  const dockerContext = path.resolve(process.cwd(), "docker", "melotts");
+  const cacheDir = path.resolve(process.cwd(), config.TTS_CACHE_DIR);
+  const outputDir = path.resolve(process.cwd(), config.TTS_OUTPUT_DIR);
+
+  await mkdir(cacheDir, { recursive: true });
+  await mkdir(outputDir, { recursive: true });
+
+  console.log(`MeloTTS Docker 이미지 빌드: ${config.TTS_IMAGE}`);
+  await run("docker", ["build", "-t", config.TTS_IMAGE, dockerContext]);
+
+  const tts = new MeloTtsService(config, logger);
+  const warmupPath = path.join(outputDir, "warmup.wav");
+
+  console.log("MeloTTS 모델 워밍업...");
+  try {
+    await tts.synthesizeToFile("안녕하세요. 로컬 티티에스 준비 테스트입니다.", warmupPath);
+  } finally {
+    await rm(warmupPath, { force: true }).catch(() => undefined);
+  }
+
+  console.log("로컬 TTS 환경 준비 완료");
+}
+
+if (import.meta.main) {
+  void setupTts().catch((error) => {
+    console.error(error instanceof Error ? error.message : String(error));
+    process.exit(1);
+  });
+}