const mockCreateTransaction = jest.fn();
jest.mock('../../app/core/midtrans.service', () => ({
    getCoreApi: jest.fn(),
    getSnap: jest.fn().mockReturnValue({
        createTransaction: mockCreateTransaction
    })
}));

jest.mock('../../models/migration', () => ({
    Order: { findByPk: jest.fn(), findOne: jest.fn(), update: jest.fn() },
    Payment: { findOne: jest.fn(), create: jest.fn(), update: jest.fn() }
}));

const snapService = require('../../app/modules/snap/services/snap.service');

describe('SnapService', () => {
    beforeEach(() => {
        jest.clearAllMocks();
        process.env.PROJECT_ID = 'CBT';
    });

    it('should create a snap transaction successfully', async () => {
        const payload = { order_id: 'u-snap', external_id: 'INV-S-001', amount: 100000 };
        mockCreateTransaction.mockResolvedValue({ token: 't-123', redirect_url: 'http://m.com' });
        const result = await snapService.createTransaction(payload);
        expect(mockCreateTransaction).toHaveBeenCalledWith(expect.objectContaining({
            transaction_details: expect.objectContaining({
                order_id: 'INV-S-001-CBT'
            })
        }));
        expect(result.token).toBe('t-123');
    });
});