fanavaran car body and third_party lookup codings applied

src/lookups/fanavaran-last-car-policy.ts

@@ -94,6 +94,52 @@ export function insuranceLineIdForProduct(
     : FANAVARAN_THIRD_PARTY_LINE_ID;
 }
 
+export function insuranceLineLabel(
+  insuranceLineId: number,
+): "CAR_BODY" | "THIRD_PARTY" | null {
+  if (insuranceLineId === FANAVARAN_CAR_BODY_LINE_ID) return "CAR_BODY";
+  if (insuranceLineId === FANAVARAN_THIRD_PARTY_LINE_ID) return "THIRD_PARTY";
+  return null;
+}
+
+export function plaqueLetterFromMiddleCode(code: unknown): string | null {
+  const id = parseFanavaranId(code);
+  if (id === null) return null;
+  const found = Object.entries(FANAVARAN_PLATE_LETTER_CODE).find(
+    ([, value]) => value === id,
+  );
+  return found?.[0] ?? null;
+}
+
+export type AppPlaque = {
+  leftTwoDigits: string;
+  serialLetter: string;
+  threeDigits: string;
+  rightTwoDigits: string;
+};
+
+export function toAppPlaque(
+  vehicle: Record<string, unknown> | null,
+): AppPlaque | null {
+  if (!vehicle) return null;
+  const leftTwoDigits = normalizePlaquePart(
+    vehicle.PlaqueLeftNo ?? vehicle.plaqueLeftNo,
+  );
+  const threeDigits = normalizePlaquePart(
+    vehicle.PlaqueRightNo ?? vehicle.plaqueRightNo,
+  );
+  const rightTwoDigits = normalizePlaquePart(
+    vehicle.PlaqueSerial ?? vehicle.plaqueSerial,
+  );
+  const serialLetter = plaqueLetterFromMiddleCode(
+    vehicle.PlaqueMiddleCodeId ?? vehicle.plaqueMiddleCodeId,
+  );
+  if (!leftTwoDigits || !serialLetter || !threeDigits || !rightTwoDigits) {
+    return null;
+  }
+  return { leftTwoDigits, serialLetter, threeDigits, rightTwoDigits };
+}
+
 export function toEnglishDigits(value: unknown): string {
   return String(value ?? "")
     .split("")