Mdb\PayPal\Ipn\Listener

Complexity

Total Complexity

7

Size/Duplication

Total Lines	68
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	7

Importance

Changes

0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	9	1
A	listen()	0	21	3
A	onVerified()	0	4	1
A	onInvalid()	0	4	1
A	onVerificationFailure()	0	4	1

<?php

namespace Mdb\PayPal\Ipn;

use Mdb\PayPal\Ipn\Event\MessageInvalidEvent;
use Mdb\PayPal\Ipn\Event\MessageVerificationFailureEvent;
use Mdb\PayPal\Ipn\Event\MessageVerifiedEvent;
use Mdb\PayPal\Ipn\Exception\ServiceException;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;

class Listener
{
    public const IPN_VERIFIED_EVENT = 'ipn.message.verified';
    public const IPN_INVALID_EVENT = 'ipn.message.invalid';
    public const IPN_VERIFICATION_FAILURE_EVENT = 'ipn.message.verification_failure';

    /**
     * @var MessageFactory
     */
    private $messageFactory;

    /**
     * @var Verifier
     */
    private $verifier;

    /**
     * @var EventDispatcherInterface
     */
    private $eventDispatcher;

    public function __construct(
        MessageFactory $messageFactory,
        Verifier $verifier,
        EventDispatcherInterface $eventDispatcher
    ) {
        $this->messageFactory = $messageFactory;
        $this->verifier = $verifier;
        $this->eventDispatcher = $eventDispatcher;
    }

    public function listen() : void
    {
        $message = $this->messageFactory->createMessage();

        try {
            $result = $this->verifier->verify($message);

            if ($result) {
                $eventName = self::IPN_VERIFIED_EVENT;
                $event = new MessageVerifiedEvent($message);
            } else {
                $eventName = self::IPN_INVALID_EVENT;
                $event = new MessageInvalidEvent($message);
            }
        } catch (\UnexpectedValueException | ServiceException $e) {
            $eventName = self::IPN_VERIFICATION_FAILURE_EVENT;
            $event = new MessageVerificationFailureEvent($message, $e->getMessage());
        }

        $this->eventDispatcher->dispatch($event, $eventName);

$event is of type object<Mdb\PayPal\Ipn\Event\MessageInvalidEvent>|object<Mdb\PayPal\Ipn\Event\MessageVerificationFailureEvent>|object<Mdb\PayPal\Ipn\Event\MessageVerifiedEvent>, but the function expects a object<Symfony\Contracts\EventDispatcher\object>.

    }

    public function onVerified(callable $listener) : void
    {
        $this->eventDispatcher->addListener(self::IPN_VERIFIED_EVENT, $listener);
    }

    public function onInvalid(callable $listener) : void
    {
        $this->eventDispatcher->addListener(self::IPN_INVALID_EVENT, $listener);
    }

    public function onVerificationFailure(callable $listener) : void
    {
        $this->eventDispatcher->addListener(self::IPN_VERIFICATION_FAILURE_EVENT, $listener);
    }
}