#ifndef BAG_LAYERDESCRIPTOR_H

#define BAG_LAYERDESCRIPTOR_H

#include "bag_config.h"

#include "bag_fordec.h"

#include "bag_types.h"

#include <limits>

#include <memory>

#include <string>

#include <tuple>

#ifdef _MSC_VER

#pragma warning(push)

#pragma warning(disable: 4251)  // std classes do not have DLL-interface when exporting

#endif

namespace BAG {

//! Describe a layer.

class BAG_API LayerDescriptor : public std::enable_shared_from_this<LayerDescriptor>

{

public:

    virtual ~LayerDescriptor() = default;

    LayerDescriptor(const LayerDescriptor&) = delete;

    LayerDescriptor(LayerDescriptor&&) = delete;

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

    LayerDescriptor& operator=(LayerDescriptor&&) = delete;

    bool operator==(const LayerDescriptor &rhs) const noexcept {

        return m_id == rhs.m_id &&

               m_layerType == rhs.m_layerType &&

               m_internalPath == rhs.m_internalPath &&

               m_name == rhs.m_name &&

               m_compressionLevel == rhs.m_compressionLevel &&

               m_chunkSize == rhs.m_chunkSize &&

               m_minMax == rhs.m_minMax;

    }

    bool operator!=(const LayerDescriptor &rhs) const noexcept {

        return !(rhs == *this);

    }

    uint64_t getChunkSize() const noexcept;

    int getCompressionLevel() const noexcept;

    DataType getDataType() const noexcept;

    uint8_t getElementSize() const noexcept;

    uint32_t getId() const noexcept;

    const std::string& getInternalPath() const & noexcept;

    LayerType getLayerType() const noexcept;

    std::tuple<float, float> getMinMax() const noexcept;

    const std::string& getName() const & noexcept;

    std::tuple<uint32_t, uint32_t> getDims() const & noexcept;

    LayerDescriptor& setName(std::string inName) & noexcept;

    LayerDescriptor& setMinMax(float min, float max) & noexcept;

    LayerDescriptor& setDims(uint64_t rows, uint64_t cols) & noexcept;

protected:

    LayerDescriptor(uint32_t id, std::string internalPath, std::string name,

        LayerType type, uint64_t rows, uint64_t cols, uint64_t chunkSize,

        int compressionLevel);

    LayerDescriptor(const Dataset& dataset, LayerType type,

        uint64_t rows, uint64_t cols,

        std::string internalPath = {}, std::string name = {});

    size_t getReadBufferSize(uint64_t rows, uint64_t columns) const noexcept;

    LayerDescriptor& setInternalPath(std::string inPath) & noexcept;

private:

    virtual DataType getDataTypeProxy() const noexcept = 0;

    virtual uint8_t getElementSizeProxy() const noexcept = 0;

    //! The unique id.

    uint32_t m_id = kInvalidLayerId;

    //! The layer type.

    LayerType m_layerType = UNKNOWN_LAYER_TYPE;

    //! The path of the DataSet in the HDF5 file.

    std::string m_internalPath;

    //! The name of the layer.

    std::string m_name;

    //! The compression level of this layer (0-9).

    int m_compressionLevel = 0;

    //! The chunk size of this layer.

    uint64_t m_chunkSize = 0;

    //! The minimum and maximum value of this dataset.

    std::tuple<float, float> m_minMax{};

    //! The dimensions of the layer. These are uint64_t (rather than uint32_t like elsewhere in the API) because

    //! dimensions are initialized from HDF5 hsize_t values, which are uint64_t.

    std::tuple<uint64_t, uint64_t> m_dims{};

    friend GeorefMetadataLayer;

    friend InterleavedLegacyLayer;

    friend SurfaceCorrections;

    friend SimpleLayer;

    friend VRMetadata;

};

#ifdef _MSC_VER

#pragma warning(pop)

#endif

}  // namespace BAG

#endif  // BAG_LAYERDESCRIPTOR_H