#pragma once


namespace ECOM::Utility::IOBuffer
{
	class InBuffer;
	class OutBuffer;

	//-----------------------------------------------------------------------------
	//		BufferItem
	//-----------------------------------------------------------------------------

	class BufferItem
	{
		friend class InBuffer;
		friend class OutBuffer;

	public:
		int 	Index;
		int		BufferSize;
		BYTE *  Data;

	private:
		bool	AutoDelete;

	public:
		inline BufferItem (int Alloc)
		{
			if (Alloc > 0)
				Data = new BYTE [Alloc];
			else
				Data = nullptr;

			AutoDelete = true;
			Index = 0;
			BufferSize = Alloc;
		}

		inline BufferItem ()
		{
			Data = nullptr;
			AutoDelete = false;
			Index = 0;
			BufferSize = 0;
		}

		inline void Clear ()
		{
			if (AutoDelete)
				delete Data;
			Data = nullptr;
		}

		inline ~BufferItem ()
		{
			Clear ();
		}

		inline int  GetCount () const
		{
			return BufferSize;
		}

	public:
		static BufferItem * BorrowFrom (void * Where, int Length)
		{
			BufferItem * BS = new BufferItem;
			BS->AutoDelete = false;
			BS->Data = (BYTE *) Where;
			BS->BufferSize = Length;
			return BS;
		}

		//	all same except const
		static BufferItem * BorrowFrom (const void * Where, int Length)
		{
			BufferItem * BS = new BufferItem;
			BS->AutoDelete = false;
			BS->Data = (BYTE *) Where;
			BS->BufferSize = Length;
			return BS;
		}
	};

}