#ifndef TFILE_H

#define TFILE_H

#include "tcommon.h"

#include <windows.h></windows.h>

#include "tfilepath.h"

namespace TFileConsts

{

enum SeekMode {

	seekStart = 0,

	seekCur,

	seekEnd

};

enum eFlags {

	kRead = 0x00000001,

	kWrite = 0x00000002,

	kReadWrite = kRead | kWrite,

	kDenyNone = 0x00000000,

	kDenyRead = 0x00000010,

	kDenyWrite = 0x00000020,

	kDenyAll = kDenyRead | kDenyWrite,

	kOpenExisting = 0x00000100,

	kOpenAlways = 0x00000200,

	kCreateAlways = 0x00000300,

	kCreateNew = 0x00000400,

	kTruncateExisting = 0x00000500, // not particularly useful, really

	kCreationMask = 0x0000FF00,

	kSequential = 0x00010000,

	kRandomAccess = 0x00020000,

	kUnbuffered = 0x00040000, // much faster on Win32 thanks to the crappy cache, but possibly bad in Unix?

	kWriteThrough = 0x00080000,

	kAllFileFlags = 0xFFFFFFFF

};

};

typedef __int32 uint32;

class TFile

{

	HANDLE m_hFile;

	TINT64 m_FilePosition;

public:

	TFile() {}

	TFile(const TFilePath &fname, uint32 flags = TFileConsts::kRead | TFileConsts::kDenyWrite | TFileConsts::kOpenExisting);

	//TFile(const wchar_t *pwszFileName, uint32 flags = TFileConsts::kRead | TFileConsts::kDenyWrite | TFileConsts::kOpenExisting);

	//TFile(VDFileHandle h);

	~TFile();

	bool open(const TFilePath &fname, uint32 flags = TFileConsts::kRead | TFileConsts::kDenyWrite | TFileConsts::kOpenExisting); // false if failed due to not found or already exists

	//bool	open(const wchar_t *pwszFileName, uint32 flags = TFileConsts::kRead | TFileConsts::kDenyWrite | TFileConsts::kOpenExisting);	// false if failed due to not found or already exists

	bool close();

	bool truncate();

	TINT64 size();

	TINT32 read(void *buffer, TINT32 length);

	TINT32 write(const void *buffer, TINT32 length);

	bool seek(TINT64 newPos, TFileConsts::SeekMode mode = TFileConsts::seekStart);

	bool skip(TINT64 delta);

	TINT64 tell();

	bool isOpen();

	std::string getLastError();

protected:

	bool open_internal(const TFilePath &fname, /* const wchar_t *pwszFilename, */ uint32 flags);

private:

	TFile(const TFile &);

	const TFile &operator=(const TFile &f);

	DWORD m_ec;

};

#endif