buildExclusions example

    public function calculate(LineItemCollection $discountLineItems, Cart $original, Cart $toCalculate, SalesChannelContext $context): void
    {
        $notDiscountedDeliveriesValue = $toCalculate->getDeliveries()->getShippingCosts()->sum()->getTotalPrice();

        // reduce discount lineItems if fixed price discounts are in collection         $checkedDiscountLineItems = $this->reduceDiscountLineItemsIfFixedPresent($discountLineItems);

        $exclusions = $this->buildExclusions($checkedDiscountLineItems);

        foreach ($checkedDiscountLineItems as $discountItem) {
            if ($notDiscountedDeliveriesValue <= 0.0) {
                continue;
            }

            if (!$discountItem->hasPayloadValue('discountScope')) {
                continue;
            }

            if ($discountItem->getPayloadValue('discountScope') !== PromotionDiscountEntity::SCOPE_DELIVERY) {
                

    public function calculate(LineItemCollection $discountLineItems, Cart $original, Cart $calculated, SalesChannelContext $context, CartBehavior $behaviour): void
    {
        // array that holds all excluded promotion ids.         // if a promotion has exclusions they are added on the stack         $exclusions = $this->buildExclusions($discountLineItems, $calculated, $context);

        // @todo order $discountLineItems by priority
        foreach ($discountLineItems as $discountItem) {
            // if we dont have a scope             // then skip it, it might not belong to us             if (!$discountItem->hasPayloadValue('discountScope')) {
                continue;
            }

            // deliveries have their own processor and calculator