import type { BackupEnv } from '@dorfteich/shared';

/**
 * The data directories that travel in a restore set's archive (ADR 0015).
 *
 * ONE list, used by the nightly archive AND by the restore — they must not
 * drift, or a backup would carry something the restore never puts back.
 * Adding a new persistent data directory is a one-line change here plus the
 * env entry and the compose mount.
 *
 * All of them must share a parent directory: `archiveBase` derives the tar
 * root from that and throws otherwise.
 */
export function dataDirs(
  env: Pick<BackupEnv, 'UPLOADS_DIR' | 'PLUGINS_DIR' | 'CUSTOM_FONTS_DIR'>,
): string[] {
  return [env.UPLOADS_DIR, env.PLUGINS_DIR, env.CUSTOM_FONTS_DIR];
}