// FAT.h: interface for the FAT class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_FAT_H__0BC24CE0_8738_4F73_A544_AD8C04DCF350__INCLUDED_)
#define AFX_FAT_H__0BC24CE0_8738_4F73_A544_AD8C04DCF350__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "Struct.h"
 
class FAT  
{
	//Member function
public:
	FAT(LPCTSTR pVolumeLab);
	virtual ~FAT();

	BOOL	GetSpecificBPB(BPB_FAT &bpb);
	BOOL	GetDPB(DPB	&dpb);

	BOOL	ReadSector(INT SectorNum,	ABS_SEC_BUF &buffer);
	BOOL	ReadSector(INT SectorNum,	WORD_SEC_BUF	&buffer);
	BOOL	ReadFAT(INT SectorNum,	FAT_BUF	    &buffer);
	BOOL	WriteSector(INT SectorNum,	ABS_SEC_BUF &buffer);
	BOOL	WriteFAT(INT SectorNum,  FAT_BUF	&buffer);
	BOOL	WriteSector(INT SectorNum,	WORD_SEC_BUF	&buffer);

	BOOL	ReadCluster(INT ClusterNum,	CHAR   *buffer);
	BOOL	ReadCluster(INT ClusterNum,	WORD   *buffer);
	BOOL	WriteCluster(INT ClusterNum,CHAR   *buffer);
	BOOL	WriteCluster(INT ClusterNum,WORD   *buffer);

	INT		GetClusterSize();
	INT	    GetFirstSecOfClu(INT ClusterNum);

	BOOL	GetEntryAddr(CHAR *sPath, DIRINCLU &DirEnt);

    BOOL	GetEntryContent(CHAR *sPath, Directory_FAT &EntryContent);
    BOOL	SetEntryContent(CHAR *sPath, Directory_FAT EntryContent);

	INT		GetNextCluster(INT CurCluster);

private:
	BOOL	GetDevice(LPCTSTR lpRoot);

	BOOL	BreakPath(const CHAR *sPath, PATHINFO &PathInfo);
	BOOL	IsLongFileName(const CHAR *sPath);
	BOOL	CopyByteStr(CByteArray &Destination,const CHAR *Source,INT BeginIndex,INT EndIndex);
	BOOL	DeletePathInfo(PATHINFO	&PathInfo);
	BOOL	SplitFileName(const CHAR* FileName, CHAR* FilName, CHAR* ExtName);

	BOOL	GetEntryAddr(INT ClusterNum, CHAR *ClusterBuffer, CHAR *FileName, DIRINCLU &DirInClu);
    BOOL	GetEntryContent(CHAR *ClusterBuffer, INT EntryIndex, Directory_FAT &EntryContent);
	BOOL	IsFileNameEqual(CHAR *FileName, Directory_FAT EntryContent);

	//Member data
private:
	HANDLE		m_hDevice;
	LPCTSTR		pVolume;
    BPB_FAT  	BPB;
};

#endif // !defined(AFX_FAT_H__0BC24CE0_8738_4F73_A544_AD8C04DCF350__INCLUDED_)