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

#pragma once

#include "raf/Defs.h"
#include "raf/types/Aliases.h"

#include <cstdint>

namespace raf {

/**
    @brief Read-only accessors for joint region affiliation.
*/
class RAFAPI JointRegionAffiliationReader {

    protected:
        virtual ~JointRegionAffiliationReader();

    public:
        virtual std::uint16_t getJointCount() const = 0;
        /**
            @brief List of region indices for specified joint.
            @param jointIndex
                A joint's position in the zero-indexed array of joints.
            @warning
                jointIndex must be less than the value returned by getJointCount.
        */
        virtual ConstArrayView<std::uint16_t> getJointRegionIndices(std::uint16_t jointIndex) const = 0;
        /**
            @brief List of joint-region affiliations (0.0f-1.0f) for specified joint.
            @param vertexIndex
                A joint's position in the zero-indexed array of joints.
            @warning
                jointIndex must be less than the value returned by getJointCount.
        */
        virtual ConstArrayView<float> getJointRegionAffiliation(std::uint16_t jointIndex) const = 0;

};

}  // namespace raf