DefaultCartableItemPricingHandler

<?php
/**
 * (c) 2011-2012 Vespolina Project http://www.vespolina-project.org
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Vespolina\CartBundle\Pricing;

use Doctrine\Common\Collections\ArrayCollection;

use Vespolina\CartBundle\Model\CartableItemInterface;
use Vespolina\CartBundle\Model\CartItemInterface;
use Vespolina\CartBundle\Pricing\CartableItemPricingHandlerInterface;

/**
 * @author Daniel Kucharski <daniel@xerias.be>
 * @author Richard Shank <develop@zestic.com>
 */
class DefaultCartableItemPricingHandler implements CartableItemPricingHandlerInterface
{

    protected $metadata;
    public function __construct()
    {

        $this->loadMetadata();

    }
    public function determineCartItemPrices(CartableItemInterface $cartableItem, CartItemInterface $cartItem, $pricingContext)
    {
        $unitPrice = $cartableItem->getPricing($this->metadata['unitPrice']);

        $upcharge = 0;

        foreach($cartItem->getOptions() as $type => $value) {

          if ($productOption = $cartItem->getCartableItem()->getOptionSet(array($type => $value))) {

              $upcharge += $productOption->getUpcharge();
          }
        }
        $pricingContext['upcharge'] = $upcharge;

        $pricingContext['total']  = ($cartItem->getQuantity() * $unitPrice) + $upcharge;

    }

    protected function loadMetadata()
    {
        $this->metadata = new ArrayCollection();

        $this->metadata->set('unitPrice',  'unitPrice');    //For now we map it 1:1
        $this->metadata->set('totalPrice', 'totalPrice');

    }
    public function getMetadata()
    {
        return $this->metadata;
    }

}