#ifndef IFSSTREAM_H__
#define IFSSTREAM_H__

#include "../../IDataStream.h"
#include "../../LString.h"
#include <assert.h>
#include <windows.h>

namespace LifeCore
{
	class IFSStream : public IDataStream
	{
	private:
		int openMode;
		size_t stmLength;
		HANDLE pFile;
	public:
		~IFSStream()
		{
			//printf("DESTRUCTING WIN FILE STREAM\n");
			Close();
		}
		void Close()
		{
			//printf("CLOSING WIN FILE STREAM\n");
			if(pFile)
				CloseHandle(pFile);
			pFile = (HANDLE)0;
		}
		IFSStream(String& path, int fileAccessMode, size_t size)
		{
			UNREFERENCED_PARAMETER(size);
			this->stmLength = 0;
			openMode = fileAccessMode;
			if (fileAccessMode == FA_READ)
			{
				pFile = CreateFileA(path.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
			}
			else
			{
				pFile = CreateFileA(path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
			}

			this->stmLength = SetFilePointer(pFile, 0, NULL, FILE_END);
			SetFilePointer(pFile, 0, NULL, FILE_BEGIN);
		}
		size_t Read(void* pBuffer, size_t countBytes)
		{
			DWORD numBytes = 0;

			ReadFile(pFile,pBuffer,countBytes, &numBytes, NULL);
			return numBytes;
		}
		size_t Write(const void* pBuffer, size_t countBytes)
		{
			DWORD numBytes = 0;
			WriteFile(pFile,pBuffer,countBytes,&numBytes, NULL);
			return numBytes;
		}
		void Seek(size_t position)
		{
			SetFilePointer(pFile, position, NULL, FILE_BEGIN);
		}
		size_t Tell()
		{
			return SetFilePointer(pFile, 0, NULL, FILE_CURRENT);
		}
		size_t Length()
		{
			int pos = Tell();
			int length = SetFilePointer(pFile, 0, NULL, SEEK_END);
			SetFilePointer(pFile, pos, NULL, SEEK_SET);
			return length;
		}
		bool CanRead()
		{
			return true;
		}
		bool CanWrite()
		{
			return true;
		}
	};
}

#endif