/* This macro will be parsed as PHP code (see http://www.php.net)

The calculateshipping function is called every time a shipping calculation request is made by Shopify.

The function must return an array of available shipping options, otherwise no shipping options will be returned to your customers.
*/
function calculateshipping($DATA) {

	/* do not edit above this line */

	$_RATES = array();

	$_RL_KEY = 'YOUR_API_KEY_HERE';

	//calculate total weight
	$w = 0;
	foreach ($DATA['items'] as $i) {
		$w += $i['quantity']*round($i['grams']/1000*2.20462,2);
	}

	//pull from UPS
	$isresidential = true;
	if ($DATA['destination']['company_name'] !== null && $DATA['destination']['company_name'] != '') $isresidential = false;

	$packages = array(
		array('weight'=>$w, 'length'=>5, 'width'=>5, 'height'=>5, 'class'=>55.0),
	);

	$RLoptions = array(
		'DestinationLiftgate' => true,
	);
	$rl = new RLCarriersAPI($_RL_KEY);
	$rl->setOrigin($DATA['origin']['city'],$DATA['origin']['province'],$DATA['origin']['postal_code'],$DATA['origin']['country']);
	$rl->setDestination($DATA['destination']['city'],$DATA['destination']['province'],$DATA['destination']['postal_code'],$DATA['destination']['country'],$isresidential);
	$rl->setOptions($RLoptions);
	$r = $rl->getRate($packages);
	if ($r) {
		foreach ($r as $_r) {
			$_RATES[] = array(
				"service_name" => $_r['name'],
				"service_code" => $_r['code'],
				"total_price" => $_r['amount']*100, //in cents
				"currency" => "USD",
			);
		}
	}

	return $_RATES;

	/* do not edit below this line */

}