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

/*=============================================================================
        DeferredMessgaeLog.h: Unreal async loading log.
=============================================================================*/

#pragma once

#include "CoreMinimal.h"

class Error;
class FTokenizedMessage;

/**
 * Thread safe proxy for the FMessageLog while performing async loading.
 * Makes sure the messages does not get added to the log until async loading is
 * finished to prevent modules from being loaded outside of game thread.
 * Also makes sure the messages are added to the message queue in a thread-safe way.
 */
class COREUOBJECT_API FDeferredMessageLog
{
    FName LogCategory;

    static TMap<FName, TArray<TSharedRef<FTokenizedMessage>>*> Messages;
    static FCriticalSection MessagesCritical;

    void AddMessage(TSharedRef<FTokenizedMessage>& Message);

public:
    FDeferredMessageLog(const FName& InLogCategory);

    TSharedRef<FTokenizedMessage> Info(const FText& Message);
    TSharedRef<FTokenizedMessage> Warning(const FText& Message);
    TSharedRef<FTokenizedMessage> Error(const FText& Message);

    static void Flush();
    static void Cleanup();
};