public function calculate_shipping($package)
{
$package = WbsPackage::fromWcPackage($package);
if (!$this->weight->includes($package->getWeight()) || !$this->subtotal->includes($package->getPrice($this->subtotalWithTax))) {
return;
}
$defaultRate = new WbsBucketRate('___wbs_base_pseudo_class', $this->fee, $this->weightRate);
/** @var WbsItemBucket[] $buckets */
$buckets = array();
foreach ($package->getLines() as $line) {
$product = $line->getProduct();
$class = $product->get_shipping_class();
$rate = $this->shippingClassRates->findById($class);
if ($rate == null) {
$rate = $defaultRate;
}
$class = $rate->getId();
if (!isset($buckets[$class])) {
$buckets[$class] = new WbsItemBucket(0, $rate);
}
$buckets[$class]->add($line->getWeight());
}
$defaultClass = $defaultRate->getId();
if (!isset($buckets[$defaultClass])) {
$buckets[$defaultClass] = new WbsItemBucket(0, $defaultRate);
}
$price = 0;
foreach ($buckets as $bucket) {
$price += $bucket->calculate();
}
$price = $this->priceClamp->clamp($price);
$this->add_rate(array('id' => $this->id, 'label' => $this->title, 'cost' => $price, 'taxes' => '', 'calc_tax' => 'per_order'));
}