backend/src/storage/storage-keys.ts

/**
 * Parspack S3 object key layout (path-style public URLs):
 *
 *   balout/
 *     products/main/{uuid}{ext}
 *     products/gallery/{uuid}{ext}
 *     categories/{uuid}{ext}
 *     branches/{uuid}{ext}
 *     users/{uuid}{ext}
 *     temp/{uuid}{ext}
 */
const ROOT = 'balout';

export function productMainKey(fileName: string): string {
  return `${ROOT}/products/main/${fileName}`;
}

export function productGalleryKey(fileName: string): string {
  return `${ROOT}/products/gallery/${fileName}`;
}

export function categoryMediaKey(fileName: string): string {
  return `${ROOT}/categories/${fileName}`;
}

export function branchMediaKey(fileName: string): string {
  return `${ROOT}/branches/${fileName}`;
}

export function userMediaKey(fileName: string): string {
  return `${ROOT}/users/${fileName}`;
}

export function tempMediaKey(fileName: string): string {
  return `${ROOT}/temp/${fileName}`;
}