/**
* @param int $newQuantity
* @param ProductOption $option
*
* @return int
*/
private function increaseStock(int $newQuantity, ProductOption $option) : int
{
/** @var StockItem[] $newStock */
$newStock = [];
$add = $newQuantity - count($option->availableStock);
for ($i = 0; $i < $add; $i++) {
$newStock[] = new StockItem();
}
$option->stockItems()->saveMany($newStock);
return count($newStock);
}
