RentalFeeObserver.h

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#pragma once
#include "ObserverTypes.h"
#include "catapult/model/Receipt.h"
 
namespace catapult { namespace observers {
 
    template<typename TNotification>
    NotificationObserverPointerT<TNotification> CreateRentalFeeObserver(const std::string& name, model::ReceiptType receiptType) {
        using ObserverType = FunctionalNotificationObserverT<TNotification>;
        return std::make_unique<ObserverType>(name + "RentalFeeObserver", [receiptType](
                const auto& notification,
                ObserverContext& context) {
            if (NotifyMode::Rollback == context.Mode)
                return;
 
            auto mosaicId = context.Resolvers.resolve(notification.MosaicId);
            auto recipient = context.Resolvers.resolve(notification.Recipient);
            model::BalanceTransferReceipt receipt(receiptType, notification.Sender, recipient, mosaicId, notification.Amount);
            context.StatementBuilder().addReceipt(receipt);
        });
    }
}}