import type { FindingRecord } from '../../domain/finding';
import { policyBackupImpactKey, type PolicyWorkResult } from '../../evaluation/policy-work-results';
import { policySourceReference } from '../../profiles/group-policy/source-presentation';

/** All evidence sources of a Fail comparison, not a new per-backup verdict. */
export function policyBackupImpactSources(result: PolicyWorkResult): NonNullable<FindingRecord['policyFailingBackupSources']> {
  if (result.status !== 'Fail') return [];
  const sources = new Map<string, { id: string; label: string }>();
  for (const source of result.sources) {
    const id = policyBackupImpactKey(source);
    if (!id || sources.has(id)) continue;
    const reference = policySourceReference(source.sourceLocator?.objectPath);
    const nativeBackup = /^(\{[0-9a-f-]+\})\//i.exec(reference)?.[1];
    // Include the retained internal identity so equal names/references never hide distinct backups.
    const label = [nativeBackup, source.policyBackupInstanceId, source.importedAt].filter(Boolean).join(' · ');
    sources.set(id, { id, label });
  }
  return [...sources.values()];
}