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path: root/packages/server/src/helpers/convertAAGUIDToString.ts
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import { isoUint8Array } from './iso/index.ts';

/**
 * Convert the aaguid buffer in authData into a UUID string
 */
export function convertAAGUIDToString(aaguid: Uint8Array): string {
  // Raw Hex: adce000235bcc60a648b0b25f1f05503
  const hex = isoUint8Array.toHex(aaguid);

  const segments: string[] = [
    hex.slice(0, 8), // 8
    hex.slice(8, 12), // 4
    hex.slice(12, 16), // 4
    hex.slice(16, 20), // 4
    hex.slice(20, 32), // 8
  ];

  // Formatted: adce0002-35bc-c60a-648b-0b25f1f05503
  return segments.join('-');
}