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<?php
use Modules\Booking\Enums\BookingStatus;
use Modules\Booking\Models\Booking;
use Modules\Payment\Data\PaymentResultData;
use Modules\Payment\Enums\PaymentMethod;
use Modules\Payment\Enums\PaymentStatus;
use Modules\Payment\Factories\PaymentGatewayFactory;
use Modules\Payment\Gateways\KbzMiniAppGateway;
use Modules\Payment\Models\Payment;
use Modules\Payment\Support\KbzSignature;
/**
* Keeps KbzMiniAppGateway's real handleWebhook() (so the inbound signature
* check in the webhook route stays genuine end-to-end) but stubs verify()
* so the double-delivery/idempotency test never hits the real KBZ API and
* can count re-verification calls.
*/
class FakeVerifyingKbzGateway extends KbzMiniAppGateway
{
public static int $verifyCallCount = 0;
public function verify(string $gatewayTransactionId): PaymentResultData
{
self::$verifyCallCount++;
return new PaymentResultData(
status: PaymentStatus::Completed,
gatewayTransactionId: $gatewayTransactionId,
gatewayPayload: ['trade_status' => 'PAY_SUCCESS'],
);
}
}
beforeEach(function () {
FakeVerifyingKbzGateway::$verifyCallCount = 0;
config(['services.kbz.merchant_key' => 'test-merchant-key']);
app(PaymentGatewayFactory::class)->register(PaymentMethod::KbzMiniApp, FakeVerifyingKbzGateway::class);
});
/**
* @return array<string, mixed>
*/
function signedKbzConfirmationBody(string $merchOrderId): array
{
$notification = [
'appid' => 'APPID123',
'notify_time' => '1576842150',
'merch_code' => 'MERCH001',
'merch_order_id' => $merchOrderId,
'mm_order_id' => '01001814070006560257',
'trans_currency' => 'MMK',
'total_amount' => '15000',
'trade_status' => 'PAY_SUCCESS',
'trans_end_time' => '1576834704',
'nonce_str' => '513ba55344ad44c8b69465aae66f7703',
'sign_type' => 'SHA256',
];
$notification['sign'] = KbzSignature::sign($notification, 'test-merchant-key');
return ['Request' => $notification];
}
test('a double-delivered kbz webhook only confirms the payment and its booking once', function () {
$booking = Booking::factory()->create(['status' => BookingStatus::PendingPayment]);
$payment = Payment::factory()->create([
'booking_id' => $booking->id,
'status' => PaymentStatus::Pending,
'gateway' => PaymentMethod::KbzMiniApp,
'gateway_transaction_id' => 'EVB-DUPTEST-1',
]);
$body = signedKbzConfirmationBody('EVB-DUPTEST-1');
$this->postJson('/api/v1/webhooks/kbz_mini_app', $body)->assertOk();
expect($payment->refresh()->status)->toBe(PaymentStatus::Completed)
->and($booking->refresh()->status)->toBe(BookingStatus::Confirmed)
->and(FakeVerifyingKbzGateway::$verifyCallCount)->toBe(1);
// KBZ redelivers the same notification — must not re-verify or re-confirm.
$this->postJson('/api/v1/webhooks/kbz_mini_app', $body)->assertOk();
expect($payment->refresh()->status)->toBe(PaymentStatus::Completed)
->and($booking->refresh()->status)->toBe(BookingStatus::Confirmed)
->and(FakeVerifyingKbzGateway::$verifyCallCount)->toBe(1);
});