// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "CoreMinimal.h"
#include "SlateFwd.h"
#include "UObject/WeakObjectPtr.h"
#include "DerivedDataCacheInterface.h"
#include "IDDCNotifications.h"

class SNotificationItem;

/**
 * Implementation of Editor DDC performance notifications
 **/
class FDDCNotifications: public IDDCNotifications
{
public:
    FDDCNotifications();
    virtual ~FDDCNotifications();

private:
    /** DDC data put notification handler */
    void OnDDCNotificationEvent(FDerivedDataCacheInterface::EDDCNotification DDCNotification);

    /** Update DDC notification event subscriptions */
    void UpdateDDCSubscriptions(bool bSubscribe = false);

    /** Manually clear any presented DDC notifications */
    void ClearSharedDDCNotification();

    /** Whether or not to show the Shared DDC notification */
    bool bShowSharedDDCNotification;

    /** Valid when a DDC notification item is being presented */
    TSharedPtr<SNotificationItem> SharedDDCNotification;
};