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    <?php

    /*
     * This file is part of the affilinet Product Data PHP SDK.
     *
     * For the full copyright and license information, please view the LICENSE
     * file that was distributed with this source code.
     */

    namespace Affilinet\ProductData\Requests;

    use Affilinet\ProductData\AffilinetClient;
    use GuzzleHttp\Psr7\Request;

    /**
     * Base Request Class
     */
    abstract class AbstractRequest implements RequestInterface
    {

        /**
         * @var $affilinetClient AffilinetClient
         */
        protected $affilinetClient;

        /**
         * @var $queryParams array
         */
        protected $queryParams;

        /**
         * @param \Affilinet\ProductData\AffilinetClient $affilinetClient
         */
        public function __construct(AffilinetClient $affilinetClient)
        {
            $this->affilinetClient = $affilinetClient;
        }

        /**
         * @return \Psr\Http\Message\RequestInterface
         */
        public function getPsr7Request()
        {
            return new Request('GET', $this->getEndpoint() . '?' . $this->serializeWithCredentials());
        }

        /**
         * @return string
         */
        protected function serializeWithCredentials()
        {
            $query = $this->queryParams;
            $query['PublisherId'] = $this->getAffilinetClient()->getPublisherId();
            $query['Password'] = $this->getAffilinetClient()->getProductDataWebservicePassword();

            return http_build_query($query);
        }

        /**
         * @return AffilinetClient
         */
        public function getAffilinetClient()
        {
            return $this->affilinetClient;
        }

        /**
         * @return string
         */
        public function serialize()
        {
            $query = $this->queryParams;
            if (empty($query)) return '';
            return http_build_query($query);
        }

        /**
         * @param  string $serialized
         * @return $this
         */
        public function unserialize($serialized)
        {
            $this->queryParams = [];
            parse_str($serialized, $this->queryParams);

            return $this;
        }
    }