import path from "node:path";

const audioPathPrefix = "/audio";

export function getAudioDirectory() {
  return process.env.AUDIO_DIRECTORY || path.join(/*turbopackIgnore: true*/ process.cwd(), "public", "audio");
}

export function getAudioPublicPath(fileName: string) {
  return `${audioPathPrefix}/${fileName}`;
}

export function getAudioFilePath(...segments: string[]) {
  return path.join(getAudioDirectory(), ...segments);
}

export function resolveAudioFilePath(segments: string[]) {
  const audioDirectory = path.resolve(/*turbopackIgnore: true*/ getAudioDirectory());
  const filePath = path.resolve(audioDirectory, ...segments);

  if (filePath !== audioDirectory && !filePath.startsWith(`${audioDirectory}${path.sep}`)) {
    return null;
  }

  return filePath;
}