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

#pragma once

#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "UObject/Object.h"
#include "Factories/FbxAnimSequenceImportData.h"
#include "MeshBuild.h"
#include "FbxSceneImportOptionsSkeletalMesh.generated.h"

UCLASS(BlueprintType, config = EditorPerProjectUserSettings, HideCategories = Object, MinimalAPI)
class UFbxSceneImportOptionsSkeletalMesh: public UObject
{
    GENERATED_UCLASS_BODY()

    //////////////////////////////////////////////////////////////////////////
    // Skeletal Mesh section

    /** Enable this option to update Skeleton (of the mesh)'s reference pose. Mesh's reference pose is always updated.  */
    UPROPERTY(EditAnywhere, Category = SkeletalMesh, meta = (ToolTip = "If enabled, update the Skeleton (of the mesh being imported)'s reference pose."))
    uint32 bUpdateSkeletonReferencePose : 1;

    /** If checked, create new PhysicsAsset if it doesn't have it */
    UPROPERTY(EditAnywhere, config, Category = SkeletalMesh)
    uint32 bCreatePhysicsAsset : 1;

    /** TODO support T0AsRefPose Enable this option to use frame 0 as reference pose */
    UPROPERTY()
    uint32 bUseT0AsRefPose : 1;

    /** If checked, triangles with non-matching smoothing groups will be physically split. */
    UPROPERTY(EditAnywhere, config, Category = SkeletalMesh)
    uint32 bPreserveSmoothingGroups : 1;

    /** If checked, meshes nested in bone hierarchies will be imported instead of being converted to bones. */
    UPROPERTY(EditAnywhere, config, Category = SkeletalMesh)
    uint32 bImportMeshesInBoneHierarchy : 1;

    /** True to import morph target meshes from the FBX file */
    UPROPERTY(EditAnywhere, config, Category = SkeletalMesh, meta = (ToolTip = "If enabled, creates Unreal morph objects for the imported meshes"))
    uint32 bImportMorphTargets : 1;

    /** Threshold to compare vertex position equality. */
    UPROPERTY(EditAnywhere, config, Category = "SkeletalMesh|Thresholds", meta = (NoSpinbox = "true", ClampMin = "0.0"))
    float ThresholdPosition;

    /** Threshold to compare normal, tangent or bi-normal equality. */
    UPROPERTY(EditAnywhere, config, Category = "SkeletalMesh|Thresholds", meta = (NoSpinbox = "true", ClampMin = "0.0", ClampMax = "1.0"))
    float ThresholdTangentNormal;

    /** Threshold to compare UV equality. */
    UPROPERTY(EditAnywhere, config, Category = "SkeletalMesh|Thresholds", meta = (NoSpinbox = "true", ClampMin = "0.0", ClampMax = "1.0"))
    float ThresholdUV;

    /** Threshold to compare vertex position equality when computing morph target deltas. */
    UPROPERTY(EditAnywhere, config, Category = "SkeletalMesh|Thresholds", meta = (NoSpinbox = "true", ClampMin = "0.0"))
    float MorphThresholdPosition;

    //////////////////////////////////////////////////////////////////////////
    // Animation section

    /** True to import animations from the FBX File */
    UPROPERTY(EditAnywhere, config, Category = Animation)
    uint32 bImportAnimations : 1;

    /** Type of asset to import from the FBX file */
    UPROPERTY(EditAnywhere, Category = Animation, config, meta = (DisplayName = "Animation Length"))
    TEnumAsByte<enum EFBXAnimationLengthImportType> AnimationLength;

    /** Frame range used when Set Range is used in Animation Length */
    UPROPERTY(EditAnywhere, Category = Animation, meta = (UIMin = 0, ClampMin = 0))
    FInt32Interval FrameImportRange;

    /** Enable this option to use default sample rate for the imported animation at 30 frames per second */
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = Animation, meta = (ToolTip = "If enabled, samples all animation curves to 30 FPS"))
    bool bUseDefaultSampleRate;

    /** Use this option to specify a sample rate for the imported animation, a value of 0 use the best matching sample rate. */
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = Animation, meta = (EditCondition = "!bUseDefaultSampleRate", ToolTip = "Sample fbx animation data at the specified sample rate, 0 find automaticaly the best sample rate"))
    int32 CustomSampleRate;

    /** Import if custom attribute as a curve within the animation **/
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = Animation)
    bool bImportCustomAttribute;

    /** If true, all previous custom attribute curves will be deleted when doing a re-import. */
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = Animation)
    bool bDeleteExistingCustomAttributeCurves;

    /** If true, all previous non-curve custom attributes will be deleted when doing a re-import. */
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = ImportSettings)
    bool bDeleteExistingNonCurveCustomAttributes;

    /** Type of asset to import from the FBX file */
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = Animation)
    bool bPreserveLocalTransform;

    /** Type of asset to import from the FBX file */
    UPROPERTY(EditAnywhere, AdvancedDisplay, config, Category = Animation)
    bool bDeleteExistingMorphTargetCurves;

    void FillSkeletalMeshInmportData(class UFbxSkeletalMeshImportData* SkeletalMeshImportData, class UFbxAnimSequenceImportData* AnimSequenceImportData, class UFbxSceneImportOptions* SceneImportOptions);
};