How to apply Cart Rules for an order on D7?

Question

1C-Bitrix

This code creates an order, but does not count discounts. How to calculate discounts correctly?

$order = Order::create($siteId, $currentUser["ID"]);
    $order->setPersonTypeId($request["PERSON_TYPE"]);
    $order->setField('CURRENCY', $currencyCode);
    if($request["COMMENT"])
      $order->setField('USER_DESCRIPTION', $request["COMMENT"]);

    $basket = Basket::loadItemsForFUser($fuserId, $siteId);
    $order->setBasket($basket);

    $shipmentCollection = $order->getShipmentCollection();
    $shipmentService = Delivery\Services\Manager::getById($request["DEVIVERY_TYPE"]);
    $shipment = $shipmentCollection->createItem();
    $shipment->setFields(array(
      'DELIVERY_ID' => $shipmentService['ID'],
      'DELIVERY_NAME' => $shipmentService['NAME'],
    ));
    $shipmentItemCollection = $shipment->getShipmentItemCollection();
    foreach($basket as $basketItem) {
      $shipmentItem = $shipmentItemCollection->createItem($basketItem);
      $shipmentItem->setQuantity($basketItem->getQuantity());
    }

    $paymentCollection = $order->getPaymentCollection();
    $paySystemService = PaySystem\Manager::getObjectById($request["PAY_TYPE"]);
    $payment = $paymentCollection->createItem($paySystemService);
    $payment->setField("SUM", $order->getPrice());

    $propertyCollection = $order->getPropertyCollection();
    
    $phoneProp = $propertyCollection->getPhone();
    $emailProp = $propertyCollection->getUserEmail();
    $nameProp = $propertyCollection->getPayerName();
    $addressProp = $propertyCollection->getAddress();
    
    $phoneProp->setValue($currentUser["PERSONAL_PHONE"]);
    $emailProp->setValue($currentUser["EMAIL"]);
    $nameProp->setValue($currentUser["LAST_NAME"]." ".$currentUser["NAME"]." ".$currentUser["SECOND_NAME"]);
    $addressProp->setValue($currentUser["PERSONAL_STREET"]);
    
    if($request["PERSON_TYPE"] == 10) {
      $companyProperty = $propertyCollection->getItemByOrderPropertyId(92);
      $companyAdrProperty = $propertyCollection->getItemByOrderPropertyId(93);
      $innProperty = $propertyCollection->getItemByOrderPropertyId(94);
      $kppProperty = $propertyCollection->getItemByOrderPropertyId(95);
      
      $companyProperty->setValue($request["ORDER_PROP_92"]);
      $companyAdrProperty->setValue($request["ORDER_PROP_93"]);
      $innProperty->setValue($request["ORDER_PROP_94"]);
      $kppProperty->setValue($request["ORDER_PROP_95"]);
    }
    
    if($request["bonusPay"]) {
      $applyBonusesProperty = $propertyCollection->getItemByOrderPropertyId(114);	
      $applyBonusesProperty->setValue($request["applyBonuses"]);		
    }

    $order->doFinalAction(true);
    $order->save();

Answer 1

I'll leave it here:
\Bitrix\Sale\Discount
https://dev.1c-bitrix.ru/api_d7/bitrix/sale/classe...
https://dev.1c-bitrix.ru/community/webdev/user/ 186...