/**
 * Auth/authorization gaps (matrix Suite J), via route guard metadata — no boot needed.
 *
 *   C-8 ✅ FIXED (was 🔴 "The exchange-rate write routes (PUT upsert, PATCH update) carry no
 *          METHOD-LEVEL guard, so they get only the global JwtGuard, not @PassengerAdmin —
 *          unlike DELETE, which was admin-gated. Net effect: any authenticated user incl. a
 *          passenger could rewrite live FX rates."): currency.controller.ts now decorates
 *          upsert/update/remove all with @PassengerAdmin() — confirmed by reading the source.
 *          Updated below to assert all three routes are admin-gated, not just DELETE.
 */
import "reflect-metadata";
import { CurrencyController } from "../src/modules/fare-engine/currency.controller";

const GUARDS_METADATA = "__guards__";
function guardsOn(handler: unknown): unknown[] {
  return (Reflect.getMetadata(GUARDS_METADATA, handler as object) as unknown[]) ?? [];
}

describe("Auth gaps (Suite J)", () => {
  it("C-8 ✅ PUT upsert exchange-rate IS admin-gated", () => {
    expect(guardsOn(CurrencyController.prototype.upsert).length).toBeGreaterThan(0);
  });

  it("C-8 ✅ PATCH update exchange-rate IS admin-gated", () => {
    expect(guardsOn(CurrencyController.prototype.update).length).toBeGreaterThan(0);
  });

  it("C-8 control: DELETE exchange-rate IS admin-gated too — all three writes consistently guarded", () => {
    expect(guardsOn(CurrencyController.prototype.remove).length).toBeGreaterThan(0);
  });
});
