// Windows/FileFind.h

#ifndef __WINDOWS_FILEFIND_H
#define __WINDOWS_FILEFIND_H

#include "../Common/MyString.h"
#include "../Common/Types.h"
#include "FileName.h"
#include "Defs.h"

namespace NWindows {
namespace NFile {
namespace NFind {

namespace NAttributes
{
  inline bool IsReadOnly(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_READONLY) != 0; }
  inline bool IsHidden(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_HIDDEN) != 0; }
  inline bool IsSystem(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_SYSTEM) != 0; }
  inline bool IsDir(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_DIRECTORY) != 0; }
  inline bool IsArchived(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_ARCHIVE) != 0; }
  inline bool IsCompressed(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_COMPRESSED) != 0; }
  inline bool IsEncrypted(DWORD attrib) { return (attrib & FILE_ATTRIBUTE_ENCRYPTED) != 0; }
}

class CFileInfoBase
{
  bool MatchesMask(UINT32 mask) const { return ((Attrib & mask) != 0); }
public:
  UInt64 Size;
  FILETIME CTime;
  FILETIME ATime;
  FILETIME MTime;
  DWORD Attrib;
  
  #ifndef _WIN32_WCE
  UINT32 ReparseTag;
  #else
  DWORD ObjectID;
  #endif

  bool IsArchived() const { return MatchesMask(FILE_ATTRIBUTE_ARCHIVE); }
  bool IsCompressed() const { return MatchesMask(FILE_ATTRIBUTE_COMPRESSED); }
  bool IsDir() const { return MatchesMask(FILE_ATTRIBUTE_DIRECTORY); }
  bool IsEncrypted() const { return MatchesMask(FILE_ATTRIBUTE_ENCRYPTED); }
  bool IsHidden() const { return MatchesMask(FILE_ATTRIBUTE_HIDDEN); }
  bool IsNormal() const { return MatchesMask(FILE_ATTRIBUTE_NORMAL); }
  bool IsOffline() const { return MatchesMask(FILE_ATTRIBUTE_OFFLINE); }
  bool IsReadOnly() const { return MatchesMask(FILE_ATTRIBUTE_READONLY); }
  bool HasReparsePoint() const { return MatchesMask(FILE_ATTRIBUTE_REPARSE_POINT); }
  bool IsSparse() const { return MatchesMask(FILE_ATTRIBUTE_SPARSE_FILE); }
  bool IsSystem() const { return MatchesMask(FILE_ATTRIBUTE_SYSTEM); }
  bool IsTemporary() const { return MatchesMask(FILE_ATTRIBUTE_TEMPORARY); }
};

class CFileInfo: public CFileInfoBase
{
public:
  CSysString Name;
  bool IsDots() const;
};

#ifdef _UNICODE
typedef CFileInfo CFileInfoW;
#else
class CFileInfoW: public CFileInfoBase
{
public:
  UString Name;
  bool IsDots() const;
};
#endif

class CFindFile
{
  friend class CEnumerator;
  HANDLE _handle;
public:
  bool IsHandleAllocated() const { return _handle != INVALID_HANDLE_VALUE; }
  CFindFile(): _handle(INVALID_HANDLE_VALUE) {}
  ~CFindFile() {  Close(); }
  bool FindFirst(LPCTSTR wildcard, CFileInfo &fileInfo);
  bool FindNext(CFileInfo &fileInfo);
  #ifndef _UNICODE
  bool FindFirst(LPCWSTR wildcard, CFileInfoW &fileInfo);
  bool FindNext(CFileInfoW &fileInfo);
  #endif
  bool Close();
};

bool FindFile(LPCTSTR wildcard, CFileInfo &fileInfo);

bool DoesFileExist(LPCTSTR name);
#ifndef _UNICODE
bool FindFile(LPCWSTR wildcard, CFileInfoW &fileInfo);
bool DoesFileExist(LPCWSTR name);
#endif

class CEnumerator
{
  CFindFile _findFile;
  CSysString _wildcard;
  bool NextAny(CFileInfo &fileInfo);
public:
  CEnumerator(): _wildcard(NName::kAnyStringWildcard) {}
  CEnumerator(const CSysString &wildcard): _wildcard(wildcard) {}
  bool Next(CFileInfo &fileInfo);
  bool Next(CFileInfo &fileInfo, bool &found);
};

#ifdef _UNICODE
typedef CEnumerator CEnumeratorW;
#else
class CEnumeratorW
{
  CFindFile _findFile;
  UString _wildcard;
  bool NextAny(CFileInfoW &fileInfo);
public:
  CEnumeratorW(): _wildcard(NName::kAnyStringWildcard) {}
  CEnumeratorW(const UString &wildcard): _wildcard(wildcard) {}
  bool Next(CFileInfoW &fileInfo);
  bool Next(CFileInfoW &fileInfo, bool &found);
};
#endif

class CFindChangeNotification
{
  HANDLE _handle;
public:
  operator HANDLE () { return _handle; }
  bool IsHandleAllocated() const { return _handle != INVALID_HANDLE_VALUE && _handle != 0; }
  CFindChangeNotification(): _handle(INVALID_HANDLE_VALUE) {}
  ~CFindChangeNotification() { Close(); }
  bool Close();
  HANDLE FindFirst(LPCTSTR pathName, bool watchSubtree, DWORD notifyFilter);
  #ifndef _UNICODE
  HANDLE FindFirst(LPCWSTR pathName, bool watchSubtree, DWORD notifyFilter);
  #endif
  bool FindNext() { return BOOLToBool(::FindNextChangeNotification(_handle)); }
};

#ifndef _WIN32_WCE
bool MyGetLogicalDriveStrings(CSysStringVector &driveStrings);
#ifndef _UNICODE
bool MyGetLogicalDriveStrings(UStringVector &driveStrings);
#endif
#endif

}}}

#endif