/* 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();

	$_NETPARCEL_USERNAME = ''; //this is your API username
	$_NETPARCEL_PASSWORD = ''; //this is your API password (not your account password)

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

	//use LB and IN
	$packages = array(
		array('weight'=>$w, 'length'=>16, 'width'=>11, 'height'=>2),
	);

	//Netparcel
	$NP = new NetParcelAPI($_NETPARCEL_USERNAME,$_NETPARCEL_PASSWORD);
	$NP->setOrigin($DATA['origin']['address1'],$DATA['origin']['address2'],$DATA['origin']['address3'],$DATA['origin']['city'],$DATA['origin']['province'],$DATA['origin']['postal_code'],$DATA['origin']['country']);
	$NP->setDestination($DATA['destination']['address1'],$DATA['destination']['address2'],$DATA['destination']['address3'],$DATA['destination']['city'],$DATA['destination']['province'],$DATA['destination']['postal_code'],$DATA['destination']['country']);
	$r = $NP->getRate($packages);
	if ($r) {
		foreach ($r as $_r) {
			$_RATES[] = array(
				"service_name" => $_r['name'],
				"service_code" => $_r['code'],
				"total_price" => ($_r['amount'])*100, //in cents
				"min_delivery_date" => $_r['min_delivery_date'],
				"max_delivery_date" => $_r['max_delivery_date'],
				"currency" => "CAD",
			);
		}
	}

	return $_RATES;

    /* do not edit below this line */

}