/* 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();

	$_FIRSTMILE_USERNAME = 'YOUR_FIRST_MILE_API_USERNAME';
	$_FIRSTMILE_PASSWORD = 'YOUR_FIRST_MILE_API_PASSWORD';

    $isResidential = true;
    if ($DATA['destination']['company_name'] !== null && $DATA['destination']['company_name'] != '') $isResidential = false;

	$w = 0;
	foreach ($DATA['items'] as $i) {
		$w += $i['quantity']*round($i['grams']/1000*2.20462,2);
	}
	
	//default box size
	$packages = array(
		array('length'=>12, 'width'=>8.75, 'height'=>6, 'weight'=>$w),
	);

	$FM = new FirstMileAPI($_FIRSTMILE_USERNAME,$_FIRSTMILE_PASSWORD);
	$FM->setOrigin(trim($DATA['origin']['address1'].' '.$DATA['origin']['address2']),$DATA['origin']['city'],$DATA['origin']['province'],$DATA['origin']['postal_code'],$DATA['origin']['country']);
	$FM->setDestination(trim($DATA['destination']['address1'].' '.$DATA['destination']['address2']),$DATA['destination']['city'],$DATA['destination']['province'],$DATA['destination']['postal_code'],$DATA['destination']['country'],$isResidential);
	$r = $FM->getRate($packages,'IMPERIAL',$e,'ALL');
	if ($r) {
		foreach ($r as $_r) {
			if ($_r['amount'] == 0) continue;
			$rateName = $_r['name'];
			$eta = '';
			$_RATES[] = array(
				"service_name" => $rateName,
				"service_code" => $rateName,
				"description" => $eta,
				"total_price" => ceil($_r['amount']*100),
				"currency" => "USD",
			);
		}
	}

    return $_RATES;

	/* do not edit below this line */

}