private function createShoppingCart()
{
$shoppingCart = new ShoppingCart();
$shoppingCart->addItem(new Product(123, 'item 1', 100, 1, 2, 15, 30));
$shoppingCart->addItem(new Product(456, 'item 2', 100, 1, 2, 15, 30));
$shoppingCart->addItem(new Product(789, 'item 3', 100, 1, 2, 15, 30));
$this->weight = 3;
$this->height = 6;
$this->width = 15;
$this->length = 30;
return $shoppingCart;
}
private function calcPackageDimensions(ShoppingCart $shoppingCart)
{
foreach ($shoppingCart as $productId => $item) {
$quantity = $shoppingCart->getItemQuantity($productId);
$this->weight += $quantity * $item->getProductWeight();
$this->height += $quantity * $item->getProductHeight();
$currentWidth = $item->getProductWidth();
$currentLength = $item->getProductLength();
if ($currentWidth > $this->width) {
$this->width = $currentWidth;
}
if ($currentLength > $this->length) {
$this->length = $currentLength;
}
}
}
