/******************************************************************************
 * Name:     gdalmultidim_priv.h
 * Project:  GDAL Core
 * Purpose:  GDAL private header for multidimensional support
 * Author:   Even Rouault <even.rouault at spatialys.com>
 *
 ******************************************************************************
 * Copyright (c) 2023, Even Rouault <even.rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/

#ifndef GDALMULTIDIM_PRIV_INCLUDED
#define GDALMULTIDIM_PRIV_INCLUDED

#include "gdal_priv.h"

//! @cond Doxygen_Suppress

// For C API

struct GDALExtendedDataTypeHS
{
    std::unique_ptr<GDALExtendedDataType> m_poImpl;

    explicit GDALExtendedDataTypeHS(GDALExtendedDataType *dt) : m_poImpl(dt)
    {
    }
};

struct GDALEDTComponentHS
{
    std::unique_ptr<GDALEDTComponent> m_poImpl;

    explicit GDALEDTComponentHS(const GDALEDTComponent &component)
        : m_poImpl(new GDALEDTComponent(component))
    {
    }
};

struct GDALGroupHS
{
    std::shared_ptr<GDALGroup> m_poImpl;

    explicit GDALGroupHS(const std::shared_ptr<GDALGroup> &poGroup)
        : m_poImpl(poGroup)
    {
    }
};

struct GDALMDArrayHS
{
    std::shared_ptr<GDALMDArray> m_poImpl;

    explicit GDALMDArrayHS(const std::shared_ptr<GDALMDArray> &poArray)
        : m_poImpl(poArray)
    {
    }
};

struct GDALAttributeHS
{
    std::shared_ptr<GDALAttribute> m_poImpl;

    explicit GDALAttributeHS(const std::shared_ptr<GDALAttribute> &poAttr)
        : m_poImpl(poAttr)
    {
    }
};

struct GDALDimensionHS
{
    std::shared_ptr<GDALDimension> m_poImpl;

    explicit GDALDimensionHS(const std::shared_ptr<GDALDimension> &poDim)
        : m_poImpl(poDim)
    {
    }
};

class GDALMDIAsAttribute final : public GDALAttribute
{
    std::vector<std::shared_ptr<GDALDimension>> m_dims{};
    const GDALExtendedDataType m_dt = GDALExtendedDataType::CreateString();
    std::string m_osValue;

  public:
    GDALMDIAsAttribute(const std::string &name, const std::string &value)
        : GDALAbstractMDArray(std::string(), name),
          GDALAttribute(std::string(), name), m_osValue(value)
    {
    }

    const std::vector<std::shared_ptr<GDALDimension>> &
    GetDimensions() const override;

    const GDALExtendedDataType &GetDataType() const override
    {
        return m_dt;
    }

    bool IRead(const GUInt64 *, const size_t *, const GInt64 *,
               const GPtrDiff_t *, const GDALExtendedDataType &bufferDataType,
               void *pDstBuffer) const override
    {
        const char *pszStr = m_osValue.c_str();
        GDALExtendedDataType::CopyValue(&pszStr, m_dt, pDstBuffer,
                                        bufferDataType);
        return true;
    }
};

//! @endcond

#endif  // GDALMULTIDIM_PRIV_INCLUDED