ReservationService::getStrategy

private function getStrategy(): ?Strategy
{
	$strategy = (new OptionStrategyFactory)->create();
	if (!$strategy)
	{
		return null;
	}

	if (
		$strategy instanceof ReserveQuantityEqualProductQuantityStrategy
		|| $strategy instanceof ReservePaidProductsStrategy
	)
	{
		$strategy->defaultStoreId = $this->getDefaultStoreId();
		$strategy->defaultDateReserveEnd = $this->getDefaultDateReserveEnd();
	}

	return $strategy;
}