/**
* @param PaymentInterface $payment
* @throws InvalidPaymentException
*/
protected function validatePayment(PaymentInterface $payment)
{
/** @var MathInterface $math */
$math = $this->options['math'];
$min = $this->options['min_sum'];
if ($math->lessThan($payment->getPaymentSum(), $min)) {
throw new InvalidPaymentException(sprintf('Minimal payment sum is %s%s', $min, $this->options['currency']));
}
}
/**
* @param PaymentInterface $payment
* @throws InvalidPaymentException
*/
public function check(PaymentInterface $payment)
{
if ($payment->getTransaction()) {
throw new InvalidPaymentException('Payment has already been received.');
}
$credentials = new OAuthTokenCredential($this->options['client_id'], $this->options['secret']);
$apiContext = new ApiContext($credentials);
$apiContext->setConfig(['mode' => $this->options['mode']]);
$paypalPayment = Payment::get($payment->getExtraData('paypal_payment_id'), $apiContext);
$payer = $paypalPayment->getPayer();
if (!$payer || 'verified' !== strtolower($payer->getStatus())) {
throw new InvalidPaymentException('Payer not verified.');
}
if ('created' == $paypalPayment->getState()) {
$execution = new PaymentExecution();
$execution->setPayerId($paypalPayment->getPayer()->getPayerInfo()->getPayerId());
$paypalPayment->execute($execution, $apiContext);
}
if ('approved' != $paypalPayment->getState()) {
throw new InvalidPaymentException('Invalid payment state.');
}
$math = new NativeMath();
$controlSum = 0;
foreach ($paypalPayment->getTransactions() as $transaction) {
if ($transaction->getAmount()->getCurrency() != $payment->getAccount()->getCurrency()) {
throw new InvalidPaymentException('Invalid payment currency.');
}
$controlSum = $math->sum($controlSum, $transaction->getAmount()->getTotal());
}
if (!$math->eq($payment->getPaymentSum(), $controlSum)) {
throw new InvalidPaymentException('Invalid payment sum.');
}
}