/**
 * Auth/authorization gaps (matrix Suite J), proven via route guard metadata — no boot needed.
 *   J1 🔴 The exchange-rate controller's write routes (PUT upsert, PATCH update) carry NO guard,
 *          so USD/ETB/DJF rates — which every international fare multiplies by — can be rewritten by
 *          an unauthenticated caller. Only DELETE is guarded (@PassengerAdmin). fare-engine/currency.controller.ts:25,32,42
 */
import "reflect-metadata";
import { CurrencyController } from "../src/modules/fare-engine/currency.controller";

// Nest stores @UseGuards under the "__guards__" metadata key on the route handler.
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("J1 🔴 PUT upsert exchange-rate has NO guard (unauthenticated FX write)", () => {
    expect(guardsOn(CurrencyController.prototype.upsert)).toHaveLength(0);
  });

  it("J1 🔴 PATCH update exchange-rate has NO guard (unauthenticated FX write)", () => {
    expect(guardsOn(CurrencyController.prototype.update)).toHaveLength(0);
  });

  it("J1 control: DELETE exchange-rate IS guarded — proving the omission on writes is not global", () => {
    expect(guardsOn(CurrencyController.prototype.remove).length).toBeGreaterThan(0);
  });
});