Chunk.h

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#pragma once

#include "swCommonLib/Common/TypesDefinitions.h"
#include "swCommonLib/HierarchicalChunkedFormat/Attribute.h"
#include "swCommonLib/HierarchicalChunkedFormat/Attributes/AttributeTypes.h"

namespace sw
{

class ChunkRepr;
DEFINE_PTR_TYPE( ChunkRepr );


class Chunk
{
    FRIEND_CLASS_TESTER( HCF );
private:

    ChunkReprPtr        m_chunkPtr;

protected:
public:
    explicit        Chunk   () = default;
    explicit        Chunk   ( ChunkReprPtr chunkRepr );
    ~Chunk() = default;


    Chunk       CreateChunk     ();

    Chunk       NextChunk       ();

    Chunk       FirstChild      ();

    bool        HasChildren     ();

    Chunk       ParentChunk     ();



    bool        Fill            ( const DataPtr data, Size dataSize );

    DataUPack   StealData       ();

    DataPack    AccessData      ();



    Attribute       AddAttribute    ( AttributeType type, const DataPtr data, Size dataSize );

    template< typename AttributeStruct >
    Attribute       AddAttribute    ( AttributeType type, const AttributeStruct& content );

    template< typename AttributeStruct >
    Attribute       AddAttribute    ( const AttributeStruct& content );

    bool        IsValid         () const;

    bool        operator==      ( Chunk other ) const;
};

//====================================================================================//
//          Implementation  
//====================================================================================//


// ================================ //
//
template< typename AttributeStruct >
inline Attribute            Chunk::AddAttribute ( AttributeType type, const AttributeStruct& content )
{
    if( IsValid() )
        return m_chunkPtr->AddAttribute( type, (const DataPtr)&content, sizeof( AttributeStruct ) );
    return Attribute( nullptr );
}

// ================================ //
//
template< typename AttributeStruct >
inline Attribute            Chunk::AddAttribute ( const AttributeStruct& content )
{
    if( IsValid() )
        return AddAttribute( GetAttributeTypeID< AttributeStruct >(), content );
    return Attribute( nullptr );
}


}   // sw