/*===========================================================================
 *
 * File:	Genfind.H
 * Author:	Dave Humphrey (uesp@m0use.net)
 * Created On:	Wednesday, June 06, 2001
 *
 * Implements a system portable class CFileFind used for iterating 
 * through files in the current directory.
 *
 *=========================================================================*/
#ifndef __GENFIND_H
#define __GENFIND_H


/*===========================================================================
 *
 * Begin Required Include Files
 *
 *=========================================================================*/
  #include "dl_file.h"

  #if defined(__MSDOS__)
    #include "dos.h"
    #include "dir.h"
    #include "time.h"
    #include "io.h"
  #elif defined(_WIN32)
    #include "io.h"
  #endif

/*===========================================================================
 *		End of Required Include Files
 *=========================================================================*/


/*=========================================================================
 *
 * Begin Defines
 *
 *=======================================================================*/

	/* Used to indicate an invalid find handle */
  #define NULL_FIND_HANDLE (-1l)

	/* Platform specific defines */
  #if defined(_WIN32)

		/* Define the base file block type */
    typedef struct _finddata_t fileblock_t;

		/* Redefine attribute values */
    #define FA_ARCH	_A_ARCH
    #define FA_DIREC	_A_SUBDIR
    #define FA_RDONLY	_A_RDONLY
    #define FA_HIDDEN	_A_HIDDEN
    #define FA_SYSTEM	_A_SYSTEM
    #define FA_NORMAL	_A_NORMAL

  #elif defined(__MSDOS__)

		/* Define the base file block type */
    typedef struct ffblk fileblock_t;

  #endif

/*=========================================================================
 *		End of Defines
 *=======================================================================*/


/*=========================================================================
 *
 * Class CFileBlock Definition
 *
 * A class to handle the different variations of the fileblock structure
 * under the various operating systems.
 *
 *=======================================================================*/
class CFileBlock {

	/* Begin protected class members */
protected:
  fileblock_t BlockData;

	/* Begin public class methods */
public:

	/* Class Constructor */
  CFileBlock (void) { Destroy(); }

	/* Class Destructor */
  virtual void Destroy (void);

	/* Return various members of the file block data */
  fileblock_t& GetBlock	   (void) { return (BlockData); }
  fileblock_t* GetBlockPtr (void) { return (&BlockData); }

	/* Define the get methods depending on the platform */
  #if defined (_WIN32)
    char*  GetName		(void)	     { return (&BlockData.name[0]); }
    int	   GetAttribute		(void) const { return (BlockData.attrib); }
    time_t GetCreationTime	(void) const { return (BlockData.time_create); }
    time_t GetAccessTime	(void) const { return (BlockData.time_access); }
    time_t GetWriteTime		(void) const { return (BlockData.time_write); }
    ulong  GetSize		(void) const { return (BlockData.size); }
  #elif defined(__MSDOS__)
    char*  GetName		(void) const { return (char*)(&BlockData.ff_name[0]); }
    int	   GetAttribute		(void) const { return (BlockData.ff_attrib); }
    time_t GetCreationTime	(void) const { return (-1l); }
    time_t GetAccessTime	(void) const { return (-1l); }
    time_t GetWriteTime		(void) const;
    ulong  GetSize		(void) const { return (BlockData.ff_fsize); }
  #endif

 };
/*=========================================================================
 *		End of Class CFileBlock Definition
 *=======================================================================*/



/*=========================================================================
 *
 * Begin Class CFindFile Definition
 *
 * Main class used for searching files under many operating systems.
 *
 *=======================================================================*/
class CFindFile {

	/* Begin protected class members */
protected:
  long       FindHandle;	/* Handle for the current find */
  CFileBlock FileBlock;		/* Block for holding file info */


	/* Begin public class methods */
public:

	/* Class Constructor */
  CFindFile (void);

	/* Class Destructors */
  ~CFindFile (void) { Destroy(); }
  void Destroy (void);

	/* Closes the file find */
  boolean Close (void);

	/* Find the first occurence of a given file spec */
  boolean FindFirst (const char* pFileSpec, const int Attributes = FA_NORMAL);

	/* Find the next occurence of the previous file spec */
  boolean FindNext (void);

	/* Used to get information on a found file */
  char*  GetName	(void) { return (FileBlock.GetName()); }
  int	 GetAttribute	(void) { return (FileBlock.GetAttribute()); }
  time_t GetCreationTime(void) { return (FileBlock.GetCreationTime()); }
  time_t GetAccessTime	(void) { return (FileBlock.GetAccessTime()); }
  time_t GetWriteTime	(void) { return (FileBlock.GetWriteTime()); }
  ulong  GetSize	(void) { return (FileBlock.GetSize()); }

	/* Check the type of the current file */
  boolean IsDirectory (void) { return (boolean) (FileBlock.GetAttribute() & FA_DIREC); }
  boolean IsSystem    (void) { return (boolean) (FileBlock.GetAttribute() & FA_SYSTEM); }
  boolean IsHidden    (void) { return (boolean) (FileBlock.GetAttribute() & FA_HIDDEN); }
  boolean IsReadOnly  (void) { return (boolean) (FileBlock.GetAttribute() & FA_RDONLY); }
  boolean IsArchive   (void) { return (boolean) (FileBlock.GetAttribute() & FA_ARCH); }

 };
/*=========================================================================
 *		End of Class CFindFile Definition
 *=======================================================================*/


#endif
/*===========================================================================
 *		End of File Genfind.H
 *=========================================================================*/