<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Braintree\Gateway\Response;

use Magento\Payment\Gateway\Response\HandlerInterface;
use Magento\Braintree\Gateway\SubjectReader;
use Magento\Sales\Api\Data\OrderPaymentInterface;

/**
 * Class PayPalDetailsHandler
 */
class PayPalDetailsHandler implements HandlerInterface
{
    const PAYMENT_ID = 'paymentId';

    const PAYER_EMAIL = 'payerEmail';

    /**
     * @var SubjectReader
     */
    private $subjectReader;

    /**
     * Constructor
     *
     * @param SubjectReader $subjectReader
     */
    public function __construct(SubjectReader $subjectReader)
    {
        $this->subjectReader = $subjectReader;
    }

    /**
     * @inheritdoc
     */
    public function handle(array $handlingSubject, array $response)
    {
        $paymentDO = $this->subjectReader->readPayment($handlingSubject);

        /** @var \Braintree\Transaction $transaction */
        $transaction = $this->subjectReader->readTransaction($response);

        /** @var OrderPaymentInterface $payment */
        $payment = $paymentDO->getPayment();

        $payPal = $this->subjectReader->readPayPal($transaction);
        $payment->setAdditionalInformation(self::PAYMENT_ID, $payPal[self::PAYMENT_ID]);
        $payment->setAdditionalInformation(self::PAYER_EMAIL, $payPal[self::PAYER_EMAIL]);
    }
}