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

#pragma once

#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Animation/AnimNodeBase.h"
#include "AnimNodes/AnimNode_BlendSpacePlayer.h"
#include "Animation/InputScaleBias.h"
#include "AnimNode_RotationOffsetBlendSpace.generated.h"

//@TODO: Comment
USTRUCT(BlueprintInternalUseOnly)
struct FAnimNode_RotationOffsetBlendSpace : public FAnimNode_BlendSpacePlayer
{
	GENERATED_USTRUCT_BODY()

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Links)
	FPoseLink BasePose;

	/*
	* Max LOD that this node is allowed to run
	* For example if you have LODThreshold to be 2, it will run until LOD 2 (based on 0 index)
	* when the component LOD becomes 3, it will stop update/evaluate
	* currently transition would be issue and that has to be re-visited
	*/
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Performance, meta = (DisplayName = "LOD Threshold"))
	int32 LODThreshold;

	// Current strength of the AimOffset
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha, meta = (PinShownByDefault))
	float Alpha;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha)
	FInputScaleBias AlphaScaleBias;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha, meta = (DisplayName = "Blend Settings"))
	FInputAlphaBoolBlend AlphaBoolBlend;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha, meta = (PinShownByDefault))
	FName AlphaCurveName;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha)
	FInputScaleBiasClamp AlphaScaleBiasClamp;

	float ActualAlpha;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha)
	EAnimAlphaInputType AlphaInputType;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Alpha, meta = (PinShownByDefault, DisplayName = "bEnabled", DisplayAfter = "AlphaScaleBias"))
	bool bAlphaBoolEnabled;

	bool bIsLODEnabled;

public:	
	ANIMGRAPHRUNTIME_API FAnimNode_RotationOffsetBlendSpace();

	// FAnimNode_Base interface
	ANIMGRAPHRUNTIME_API virtual void Initialize_AnyThread(const FAnimationInitializeContext& Context) override;
	ANIMGRAPHRUNTIME_API virtual void CacheBones_AnyThread(const FAnimationCacheBonesContext& Context) override;
	ANIMGRAPHRUNTIME_API virtual void UpdateAssetPlayer(const FAnimationUpdateContext& Context) override;
	ANIMGRAPHRUNTIME_API virtual void Evaluate_AnyThread(FPoseContext& Output) override;
	ANIMGRAPHRUNTIME_API virtual void GatherDebugData(FNodeDebugData& DebugData) override;
	virtual int32 GetLODThreshold() const override { return LODThreshold; }
	// End of FAnimNode_Base interface
};