import { ClaimRequiredDocumentType } from "src/Types&Enums/claim-request-management/required-document-type.enum";

const REQUIRED_VALUES = new Set<string>(
  Object.values(ClaimRequiredDocumentType),
);

/**
 * Non-canonical document keys that may still appear on stored
 * `evaluation.damageExpertResend.resendDocuments` → {@link ClaimRequiredDocumentType}.
 */
const RESEND_DOCUMENT_KEY_ALIASES: Readonly<
  Record<string, ClaimRequiredDocumentType>
> = {
  nationalCertificate: ClaimRequiredDocumentType.NATIONAL_CARD,
  NationalCertificate: ClaimRequiredDocumentType.NATIONAL_CARD,
  drivingLicense: ClaimRequiredDocumentType.DAMAGED_DRIVING_LICENSE_FRONT,
  DrivingLicense: ClaimRequiredDocumentType.DAMAGED_DRIVING_LICENSE_FRONT,
  carGreenCard: ClaimRequiredDocumentType.CAR_GREEN_CARD,
  CarGreenCard: ClaimRequiredDocumentType.CAR_GREEN_CARD,
  carCertificate: ClaimRequiredDocumentType.DAMAGED_CAR_CARD_FRONT,
  CarCertificate: ClaimRequiredDocumentType.DAMAGED_CAR_CARD_FRONT,
  plate: ClaimRequiredDocumentType.DAMAGED_METAL_PLATE,
  carPlate: ClaimRequiredDocumentType.DAMAGED_METAL_PLATE,
  CarPlate: ClaimRequiredDocumentType.DAMAGED_METAL_PLATE,
};

/** Normalize a single key to a {@link ClaimRequiredDocumentType} value, or null if unknown. */
export function canonicalizeResendDocumentKey(
  raw: string,
): ClaimRequiredDocumentType | null {
  const t = String(raw || "").trim();
  if (!t) return null;
  if (REQUIRED_VALUES.has(t)) return t as ClaimRequiredDocumentType;
  return RESEND_DOCUMENT_KEY_ALIASES[t] ?? null;
}