Exeu / apai-io

     * @throws \InvalidArgumentException if $quantity is not an integer

     * @throws \OutOfRangeException      if $quantity is not in the allowed range: 0 <= $quantity <= 999

     */

    public function modifyQuantity($cartItemId, $quantity)

    {

        $this->validateModificationCount();

        $this->validateQuantity($quantity);

        $this->parameters['Item.' . $this->itemCounter . '.CartItemId'] = $cartItemId;

        $this->parameters['Item.' . $this->itemCounter . '.Quantity']   = $quantity;

        $this->itemCounter++;

        return $this;

    }

    /**

     * Changes an action of CartIteam to move between Cart and SaveForLater lists

     *

     * @throws \OutOfRangeException if more then self::ITEM_LIMIT items are to be modified

     */

    public function modifyAction($cartItemId, $action)

    {

        $this->validateModificationCount();

        $this->validateAction($action);

        $this->parameters['Item.' . $this->itemCounter . '.CartItemId'] = $cartItemId;

        $this->parameters['Item.' . $this->itemCounter . '.Action']     = $action;

        $this->itemCounter++;

        return $this;

    }

    /**

     * Counts cart modification for this operation