style: format code biome

src/lib/services/soundtracks.ts

@@ -21,7 +21,14 @@ import { parseBuffer } from "music-metadata";
 
 /** On-disk directory where MP3s live. Fixed (not configurable from UI to
  *  avoid any path traversal risk). */
-export const SOUNDTRACK_DIR = path.join(process.cwd(), "public", "swf", "dcr", "hof_furni", "mp3");
+export const SOUNDTRACK_DIR = path.join(
+	process.cwd(),
+	"public",
+	"swf",
+	"dcr",
+	"hof_furni",
+	"mp3",
+);
 
 /** Default public URL prefix (with trailing slash). Can be overridden via
  *  the `soundtrack_base_url` CMS setting. */
@@ -34,19 +41,19 @@ export const MAX_SOUNDTRACK_SIZE = 10 * 1024 * 1024;
 
 /** Reject codes that would escape the sounds directory or use unsafe chars. */
 export function isSafeSoundtrackCode(code: string): boolean {
-  return /^[a-zA-Z0-9_-]{1,32}$/.test(code);
+	return /^[a-zA-Z0-9_-]{1,32}$/.test(code);
 }
 
 export function getSoundtrackPath(code: string): string {
-  if (!isSafeSoundtrackCode(code)) {
-    throw new Error(`Unsafe soundtrack code: ${code}`);
-  }
-  return path.join(SOUNDTRACK_DIR, `${code}.mp3`);
+	if (!isSafeSoundtrackCode(code)) {
+		throw new Error(`Unsafe soundtrack code: ${code}`);
+	}
+	return path.join(SOUNDTRACK_DIR, `${code}.mp3`);
 }
 
 /** Ensure the sounds directory exists (mkdir -p). */
 export async function ensureSoundtrackDir(): Promise<void> {
-  await fs.mkdir(SOUNDTRACK_DIR, { recursive: true });
+	await fs.mkdir(SOUNDTRACK_DIR, { recursive: true });
 }
 
 // ── Validation ─────────────────────────────────────────────────────
@@ -62,18 +69,19 @@ export async function ensureSoundtrackDir(): Promise<void> {
  * files masquerading as .mp3 (e.g. renamed .exe).
  */
 export function validateMp3Bytes(buf: Buffer): boolean {
-  if (buf.length < 4) return false;
+	if (buf.length < 4) return false;
 
-  // ID3v2 tag header
-  if (buf[0] === 0x49 && buf[1] === 0x44 && buf[2] === 0x33) return true;
+	// ID3v2 tag header
+	if (buf[0] === 0x49 && buf[1] === 0x44 && buf[2] === 0x33) return true;
 
-  // MPEG sync: 0xFF followed by 0xFA/0xFB/0xFE/0xF3/0xF2
-  if (buf[0] === 0xff) {
-    const b = buf[1];
-    if (b === 0xfa || b === 0xfb || b === 0xfe || b === 0xf3 || b === 0xf2) return true;
-  }
+	// MPEG sync: 0xFF followed by 0xFA/0xFB/0xFE/0xF3/0xF2
+	if (buf[0] === 0xff) {
+		const b = buf[1];
+		if (b === 0xfa || b === 0xfb || b === 0xfe || b === 0xf3 || b === 0xf2)
+			return true;
+	}
 
-  return false;
+	return false;
 }
 
 /**
@@ -81,14 +89,23 @@ export function validateMp3Bytes(buf: Buffer): boolean {
  * Returns 0 if metadata cannot be parsed.
  */
 export async function extractMp3Duration(buf: Buffer): Promise<number> {
-  try {
-    const meta = await parseBuffer(buf, { mimeType: "audio/mpeg" }, { duration: true });
-    const seconds = meta.format.duration;
-    if (typeof seconds !== "number" || !Number.isFinite(seconds) || seconds <= 0) return 0;
-    return Math.round(seconds);
-  } catch {
-    return 0;
-  }
+	try {
+		const meta = await parseBuffer(
+			buf,
+			{ mimeType: "audio/mpeg" },
+			{ duration: true },
+		);
+		const seconds = meta.format.duration;
+		if (
+			typeof seconds !== "number" ||
+			!Number.isFinite(seconds) ||
+			seconds <= 0
+		)
+			return 0;
+		return Math.round(seconds);
+	} catch {
+		return 0;
+	}
 }
 
 // ── File I/O ───────────────────────────────────────────────────────
@@ -97,22 +114,25 @@ export async function extractMp3Duration(buf: Buffer): Promise<number> {
  * Write the MP3 payload to disk under the given code.
  * Creates the parent directory if missing.
  */
-export async function writeSoundtrackFile(code: string, buf: Buffer): Promise<void> {
-  await ensureSoundtrackDir();
-  await fs.writeFile(getSoundtrackPath(code), buf);
+export async function writeSoundtrackFile(
+	code: string,
+	buf: Buffer,
+): Promise<void> {
+	await ensureSoundtrackDir();
+	await fs.writeFile(getSoundtrackPath(code), buf);
 }
 
 /**
  * Remove the MP3 file for the given code. No-op if the file is already gone.
  */
 export async function deleteSoundtrackFile(code: string): Promise<void> {
-  try {
-    await fs.unlink(getSoundtrackPath(code));
-  } catch (err) {
-    const errCode = (err as NodeJS.ErrnoException).code;
-    if (errCode === "ENOENT") return;
-    throw err;
-  }
+	try {
+		await fs.unlink(getSoundtrackPath(code));
+	} catch (err) {
+		const errCode = (err as NodeJS.ErrnoException).code;
+		if (errCode === "ENOENT") return;
+		throw err;
+	}
 }
 
 export type { TraxChannel, TraxEvent } from "@/lib/trax-format";
@@ -120,8 +140,8 @@ export type { TraxChannel, TraxEvent } from "@/lib/trax-format";
 // implementation lives in `@/lib/trax-format` so it can be imported by
 // client components without pulling in Node-only deps from this file.
 export {
-  detectSoundtrackKind,
-  parseTrackSamples,
-  parseTraxChannels,
-  TRAX_TICK_SECONDS,
+	detectSoundtrackKind,
+	parseTrackSamples,
+	parseTraxChannels,
+	TRAX_TICK_SECONDS,
 } from "@/lib/trax-format";