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

#pragma once

#include "dnacalib/Command.h"
#include "dnacalib/Defs.h"
#include "dnacalib/types/Aliases.h"

#include <cstdint>

namespace dnac {

class DNACalibDNAReader;

/**
    @brief SetSkinWeightsCommand is used to set new skin weights for a vertex in a mesh.
*/
class SetSkinWeightsCommand : public Command {
    public:
        DNACAPI explicit SetSkinWeightsCommand(MemoryResource* memRes = nullptr);
        DNACAPI SetSkinWeightsCommand(std::uint16_t meshIndex,
                                      std::uint32_t vertexIndex,
                                      ConstArrayView<float> weights,
                                      ConstArrayView<std::uint16_t> jointIndices,
                                      MemoryResource* memRes = nullptr);

        DNACAPI ~SetSkinWeightsCommand();

        SetSkinWeightsCommand(const SetSkinWeightsCommand&) = delete;
        SetSkinWeightsCommand& operator=(const SetSkinWeightsCommand&) = delete;

        DNACAPI SetSkinWeightsCommand(SetSkinWeightsCommand&&);
        DNACAPI SetSkinWeightsCommand& operator=(SetSkinWeightsCommand&&);

        /**
            @brief Method for setting the index of the targeted mesh.
            @param meshIndex
                The mesh index.
        */
        DNACAPI void setMeshIndex(std::uint16_t meshIndex);

        /**
            @brief Method for setting the index of the vertex to change.
            @param vertexIndex
                The vertex index.
        */
        DNACAPI void setVertexIndex(std::uint32_t vertexIndex);

        /**
            @brief Method for setting the weights with which joints influence the vertex in question.
            @param weights
                Weights for each joint that has an influence on the vertex.
        */
        DNACAPI void setWeights(ConstArrayView<float> weights);

        /**
            @brief Method for setting the joint indices of joints that influence the vertex in question.
            @param jointIndices
                Joint indices of joints that have an influence on the vertex.
        */
        DNACAPI void setJointIndices(ConstArrayView<std::uint16_t> jointIndices);
        DNACAPI void run(DNACalibDNAReader* output) override;

    private:
        class Impl;
        ScopedPtr<Impl> pImpl;

};

}  // namespace dnac