/**
 * Property-based tests for payment functions in lib/summit-requests.ts
 * Feature: paypal-payment-integration
 */
import { describe, it, expect, vi, beforeEach } from "vitest";
import * as fc from "fast-check";
import type { AdminRequestRow } from "@/types/admin-submission";

// ---------------------------------------------------------------------------
// Mocks
// ---------------------------------------------------------------------------
const mockCreate = vi.fn();
const mockFindOneAndUpdate = vi.fn();
const mockFindOne = vi.fn();

vi.mock("@/lib/mongodb", () => ({ default: vi.fn().mockResolvedValue(undefined) }));
vi.mock("@/models/SummitRequest", () => ({
  default: {
    create: (...args: unknown[]) => mockCreate(...args),
    findOneAndUpdate: (...args: unknown[]) => mockFindOneAndUpdate(...args),
    findOne: (...args: unknown[]) => mockFindOne(...args),
  },
}));

const mockRow: AdminRequestRow = {
  id: "V6-TEST",
  submittedAt: "2026-01-01",
  displayDate: "01 JAN 2026",
  fullName: "Test User",
  jobTitle: "Engineer",
  company: "Test Co",
  segment: "enterprise",
  email: "test@example.com",
  phone: "+84 123456789",
  status: "pending",
  notes: "",
  source: "registration",
};

// ---------------------------------------------------------------------------
// Property 4: PayPal Order ID được lưu với trạng thái payment_pending
// ---------------------------------------------------------------------------
describe("createRegistrationWithPayment", () => {
  beforeEach(() => {
    mockCreate.mockReset();
    mockCreate.mockResolvedValue({});
  });

  it(
    "Feature: paypal-payment-integration, Property 4: Order ID lưu với payment_pending",
    async () => {
      await fc.assert(
        fc.asyncProperty(
          fc.string({ minLength: 1, maxLength: 50 }),
          async (orderId) => {
            const { createRegistrationWithPayment } = await import("../summit-requests");
            await createRegistrationWithPayment(mockRow, orderId);

            expect(mockCreate).toHaveBeenCalledWith(
              expect.objectContaining({
                paymentStatus: "payment_pending",
                paypalOrderId: orderId,
                paymentAmount: 120,
                paymentCurrency: "USD",
              })
            );
          }
        ),
        { numRuns: 50 }
      );
    }
  );
});

// ---------------------------------------------------------------------------
// Property 5: Capture thành công chuyển trạng thái sang paid
// ---------------------------------------------------------------------------
describe("markPaymentPaid", () => {
  beforeEach(() => {
    mockFindOneAndUpdate.mockReset();
    mockFindOneAndUpdate.mockResolvedValue({ paymentStatus: "paid" });
  });

  it(
    "Feature: paypal-payment-integration, Property 5: Capture thành công chuyển sang paid",
    async () => {
      await fc.assert(
        fc.asyncProperty(
          fc.string({ minLength: 1, maxLength: 50 }),
          fc.string({ minLength: 1, maxLength: 50 }),
          async (orderId, captureId) => {
            const { markPaymentPaid } = await import("../summit-requests");
            await markPaymentPaid(orderId, captureId);

            expect(mockFindOneAndUpdate).toHaveBeenCalledWith(
              { paypalOrderId: orderId, paymentStatus: { $ne: "paid" } },
              expect.objectContaining({
                $set: expect.objectContaining({
                  paymentStatus: "paid",
                  paypalCaptureId: captureId,
                }),
              }),
              { new: true }
            );
          }
        ),
        { numRuns: 50 }
      );
    }
  );
});

// ---------------------------------------------------------------------------
// Property 7: Cancel chuyển trạng thái sang payment_cancelled
// ---------------------------------------------------------------------------
describe("markPaymentCancelled", () => {
  beforeEach(() => {
    mockFindOneAndUpdate.mockReset();
    mockFindOneAndUpdate.mockResolvedValue({ paymentStatus: "payment_cancelled" });
  });

  it(
    "Feature: paypal-payment-integration, Property 7: Cancel chuyển trạng thái sang payment_cancelled",
    async () => {
      await fc.assert(
        fc.asyncProperty(
          fc.string({ minLength: 1, maxLength: 50 }),
          async (orderId) => {
            const { markPaymentCancelled } = await import("../summit-requests");
            await markPaymentCancelled(orderId);

            expect(mockFindOneAndUpdate).toHaveBeenCalledWith(
              { paypalOrderId: orderId },
              { $set: { paymentStatus: "payment_cancelled" } },
              { new: true }
            );
          }
        ),
        { numRuns: 50 }
      );
    }
  );
});

// ---------------------------------------------------------------------------
// Property 14: paymentStatus mặc định là not_required
// ---------------------------------------------------------------------------
describe("createSummitRequest (default paymentStatus)", () => {
  beforeEach(() => {
    mockCreate.mockReset();
    mockCreate.mockResolvedValue({});
  });

  it(
    "Feature: paypal-payment-integration, Property 14: paymentStatus mặc định là not_required",
    async () => {
      // The Mongoose schema sets default: "not_required" — verify the schema field is defined
      // We test that createSummitRequest does NOT pass paymentStatus (so schema default applies)
      const { createSummitRequest } = await import("../summit-requests");
      await createSummitRequest(mockRow);

      const callArg = mockCreate.mock.calls[0][0];
      // createSummitRequest should not override paymentStatus — schema default handles it
      expect(callArg).not.toHaveProperty("paymentStatus");
    }
  );
});