GLTF_IO.h

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#ifndef __GLTF_IO_h__
#define __GLTF_IO_h__

#include "GLTFZ_API.h"
#include "GLTF_CgltfWrapper.h"

#include <UT/UT_UniquePtr.h>

class GLTF_ErrorManager;

class GLTFZ_API GLTF_IO
{
public:
    enum class Mode : int
    {
        Invalid,
        Read,
        Write
    };

    explicit GLTF_IO(GLTF_IO::Mode mode);
    ~GLTF_IO() {}

    bool                    open(const char* path, GLTF_ErrorManager& errors);
    void                    close();

    bool                    isOpen() const { return myCgltfWrapper != nullptr; }

    bool                    read(GLTF_ErrorManager& errors);
    bool                    write(GLTF_ErrorManager& errors);

    UT_StringHolder         getFilename() const;
    UT_StringHolder         getFileExtension() const;

    cgltf_data*             getCgltfData()
    {
        if (!myCgltfWrapper)
            return nullptr;

        return myCgltfWrapper->getCgltfData();
    }
    const cgltf_data*       getCgltfData() const
    {
        if (!myCgltfWrapper)
            return nullptr;

        return myCgltfWrapper->getCgltfData();
    }

    cgltf_options*          getCgltfOptions()
    {
        if (!myCgltfWrapper)
            return nullptr;

        return &myCgltfWrapper->getCgltfOptions();
    }
    const cgltf_options*    getCgltfOptions() const
    {
        if (!myCgltfWrapper)
            return nullptr;

        return &myCgltfWrapper->getCgltfOptions();
    }

    GLTF_CgltfWrapper*      getCgltfWrapper() { return myCgltfWrapper.get(); }

private:

    bool                openForRead(GLTF_ErrorManager& errors);
    bool                openForWrite(GLTF_ErrorManager& errors);

private:
    Mode                            myMode          = Mode::Invalid;
    UT_UniquePtr<GLTF_CgltfWrapper> myCgltfWrapper  = nullptr;

    UT_StringHolder                 myFilePath;
};

#endif