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<?php
/* --------------------------------------------------------------
   SharedShoppingCartWriter.inc.php 2016-04-08 gm
   Gambio GmbH
   http://www.gambio.de
   Copyright (c) 2016 Gambio GmbH
   Released under the GNU General Public License (Version 2)
   [http://www.gnu.org/licenses/gpl-2.0.html]
   --------------------------------------------------------------
*/

/**
 * Class SharedShoppingCartWriter
 *
 * @category   System
 * @package    SharedShoppingCart
 */
class SharedShoppingCartWriter implements SharedShoppingCartWriterInterface
{
    /**
     * @var CI_DB_query_builder
     */
    protected $db;

    
    /**
     * SharedShoppingCartWriter constructor.
     *
     * @param \CI_DB_query_builder $db
     */
    public function __construct(CI_DB_query_builder $db)
    {
        $this->db = $db;
    }


    /**
     * Stores a shopping cart.
     *
     * @param StringType  $shoppingCartHash Hash of the shopping cart
     * @param StringType  $jsonShoppingCart JSON representation of the shopping cart
     * @param IdType|null $userId           Id of the user sharing the shopping cart
     *
     * @return $this|SharedShoppingCartWriter Same instance for chained method calls.
     */
    public function storeShoppingCart(StringType $shoppingCartHash, StringType $jsonShoppingCart, IdType $userId = null)
    {
        $this->db->replace('shared_shopping_carts', array(
            'hash'               => $shoppingCartHash->asString(),
            'json_shopping_cart' => $jsonShoppingCart->asString(),
            'customer_id'        => $userId->asInt()
        ));
    }
}