Add option to allow zero total price in payment container

remp/crm#3300

src/Models/PaymentItem/PaymentItemContainer.php

@@ -11,6 +11,8 @@ class PaymentItemContainer
 
  private bool $unreliable = false;
 
+ private bool $zeroPriceAllowed = false;
+
  /**
  * Is true if container contains GenericPaymentItem, which means
  * some payment item type was not registered in PaymentItemContainerFactory
@@ -26,6 +28,16 @@ public function setUnreliable(bool $unreliable = true): void
  $this->unreliable = $unreliable;
  }
 
+ public function isZeroPriceAllowed(): bool
+ {
+ return $this->zeroPriceAllowed;
+ }
+
+ public function setZeroPriceAllowed(bool $zeroPriceAllowed = true): void
+ {
+ $this->zeroPriceAllowed = $zeroPriceAllowed;
+ }
+
  public function addItem(PaymentItemInterface $item): self
  {
  $this->items[] = $item;

src/Presenters/MethodsPresenter.php

@@ -60,6 +60,7 @@ public function renderAdd(string $paymentGatewayCode, int $recurrentPaymentId =
  $paymentItemContainer = (new PaymentItemContainer())->addItem(
  new AuthorizationPaymentItem('authorization', $gateway->getAuthorizationAmount())
  );
+ $paymentItemContainer->setZeroPriceAllowed();
 
  $countryResolution = $this->oneStopShop->resolveCountry(
  user: $userRow,

src/Repositories/PaymentsRepository.php

@@ -142,8 +142,12 @@ final public function add(
  // It's not possible to generate payment amount based on payment items as postal fees of product module were
  // not refactored yet to separate payment item. Therefore custom "$amount" is still allowed.
 
- if ($data['amount'] <= 0) {
- throw new \Exception('attempt to create payment with zero or negative amount: ' . $data['amount']);
+ if ($data['amount'] < 0) {
+ throw new \Exception('attempt to create payment with negative amount: ' . $data['amount']);
+ }
+
+ if ($data['amount'] === 0.0 && !$paymentItemContainer->isZeroPriceAllowed()) {
+ throw new \Exception('attempt to create payment with zero amount.');
  }
 
  if ($subscriptionType) {