/**

 * Empty the cart and add the new items in the Cart. Used by the product detail page to insure there is only the wanted item in the cart

 * 

 * @response no response

 * @param {nlobjRequest} request : the information on the request like parameters and who called the service

 * @param {nlobjResponse} response : the object that is going to contain the response which in this case is nothing

 * @Governance 20 Units

 */

function service(request, response) {

	var itemOptions = request.getParameter('options');

	if (itemOptions != null && itemOptions != '') {

		itemOptions = JSON.parse(itemOptions);

	}

	else {

		itemOptions = null;

	}

	var order = nlapiGetWebContainer().getShoppingSession().getOrder();

	order.removeAllItems();

	order.addItem({

		internalid : request.getParameter('internalid'),

		quantity : request.getParameter('quantity'),

		options : itemOptions

	});

	response.setContentType('JSON');

	response.write('{}');

}