/** 
 *  @file		NFFilePtrA.h
 *  @brief		FILE auto close class
 *  @remarks	
 *  @author		°­µ¿¸í(edith2580@gmail.com)
 *  @date		2009-04-02
 */

#pragma once

#include <stdio.h>

namespace Nave {

	/** 
	 *  @class		  NFFilePtrW  
	 *  @brief        FILE auto close class
	 *  @remarks      NFFilePtrW file(L"c:\1.txt", L"rt");		\r\n
	 *                fgets(str, 128, file);					\r\n
	 *                return;
	 *  @par          
	 *  @author  Edith
	 *  @date    2009-04-05
	 */
	class NFFilePtrW
	{
	public:
		/// NFFilePtrW »ý¼ºÀÚ
		NFFilePtrW() : m_pFile(NULL)
		{
		}

		/**
		 * @brief ÆÄÀÏ ÀÚµ¿¿­±â »ý¼ºÀÚ
		 * @param file ÆÄÀϸí
		 * @param mode ÆÄÀÏ ¸ðµå
		 */
		NFFilePtrW(LPCWSTR file, LPCWSTR mode)
		{
			m_pFile = _wfopen(file, mode);
		}

		/// NFFilePtrW ¼Ò¸êÀÚ
		~NFFilePtrW()
		{
			if(m_pFile)
				fclose(m_pFile);

			m_pFile = NULL;
		}

		/**
		 * @brief NFFilePtrW1 = FilePtrW2 ÀÌÅÍ·¹ÀÌÅÍ
		 * @warning NFFilePtrW2´Â ´õÀÌ»ó »ç¿ëÇÒ¼ö ¾ø½À´Ï´Ù.
		 */
		NFFilePtrW& operator=(NFFilePtrW& _Right) throw()
		{
			Reset(_Right.Release());
			return (*this);
		}

		/**
		 * @brief NFFilePtrW = FILE* ÀÌÅÍ·¹ÀÌÅÍ
		 * @warning NFFilePtrW¿¡¼­ ÀÚµ¿ fclose°¡ µË´Ï´Ù.    \r\n
		 *          FILE*°´Ã¼¸¦ fcloseÇÏ¸é ¹®Á¦°¡ ¹ß»ýÇÒ ¼öÀÖ½À´Ï´Ù.
		 */
		NFFilePtrW& operator=(FILE* _Right) throw()
		{
			Reset(_Right);
			return (*this);
		}

		/**
		 * @brief FILE* Çüº¯È¯ ¿ÀÆÛ·¹ÀÌÅÍ ÀÔ´Ï´Ù.
		 * @return ÇöÀçÀÇ ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		operator FILE*() const throw()
		{
			return m_pFile;
		}

		/**
		 * @brief ÆÄÀÏ Æ÷ÀÎÅ͸¦ ÃʱâÈ­ ÇÕ´Ï´Ù. FILEÀÌ close µÇÁö ¾Ê½À´Ï´Ù.
		 * @return  ÇöÀçÀÇ ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		FILE* Release()
		{
			FILE* fp = m_pFile;
			m_pFile = NULL;
			return fp;
		}

		/**
		 * @brief »õ·Î¿î °ªÀ¸·Î Àç¼³Á¤ÇÕ´Ï´Ù. ±âÁ¸ÀÇ FILEÀº close µË´Ï´Ù.
		 * @param fp »õ·Î¿î ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		void Reset(LPCWSTR file, LPCWSTR mode)
		{
			if(m_pFile)
				fclose(m_pFile);

			m_pFile = _wfopen(file, mode);
		}

		/**
		 * @brief »õ·Î¿î °ªÀ¸·Î Àç¼³Á¤ÇÕ´Ï´Ù.
		 *   ±âÁ¸ÀÇ FILEÀº close µË´Ï´Ù.
		 * @param fp »õ·Î¿î ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		void Reset(FILE* fp)
		{
			if(m_pFile)
				fclose(m_pFile);

			m_pFile = fp;
		}

		/**
		* @brief ÆÄÀÏÀÇ ³¡ÀÎÁö °Ë»çÇÕ´Ï´Ù.
		*/
		int IsEOF()
		{
			return feof(m_pFile);
		}

		/**
		 * @brief ÆÄÀÏÀÇ ±æÀ̸¦ ¸®ÅÏÇÕ´Ï´Ù.
		 * @return  ÆÄÀÏÀÇ ±æÀÌ
		 */
		long Length()
		{
			fpos_t cuspos;
			if(fgetpos( m_pFile, &cuspos ) != 0)
			return -1; // error

			fseek( m_pFile, 0L, SEEK_END );
			long length = ftell( m_pFile );

			fsetpos(m_pFile, &cuspos);
			return length;
		}


	private:
		/// ÆÄÀÏ Æ÷ÀÎÅÍ
		FILE* m_pFile;
	};

	/** 
	 *  @class		  NFFilePtrA
	 *  @brief        FILE auto close class
	 *  @remarks      NFFilePtrA file("c:\1.txt", "rt");		\r\n
	 *                fgets(str, 128, file);					\r\n
	 *                return;
	 *  @par          
	 *  @author  Edith
	 *  @date    2009-04-05
	 */
	class NFFilePtrA
	{
	public:
		/// NFFilePtrA »ý¼ºÀÚ
		NFFilePtrA() : m_pFile(NULL)
		{
		}

		/**
		 * @brief ÆÄÀÏ ÀÚµ¿¿­±â »ý¼ºÀÚ
		 * @param file ÆÄÀϸí
		 * @param mode ÆÄÀÏ ¸ðµå
		 */
		NFFilePtrA(LPCSTR file, LPCSTR mode)
		{
			m_pFile = fopen(file, mode);
		}

		/// NFFilePtrA ¼Ò¸êÀÚ
		~NFFilePtrA()
		{
			if(m_pFile)
				fclose(m_pFile);

			m_pFile = NULL;
		}

		/**
		 * @brief NFFilePtr1 = FilePtrW2 ÀÌÅÍ·¹ÀÌÅÍ
		 * @warning NFFilePtr2´Â ´õÀÌ»ó »ç¿ëÇÒ¼ö ¾ø½À´Ï´Ù.
		 */
		NFFilePtrA& operator=(NFFilePtrA& _Right) throw()
		{
			Reset(_Right.Release());
			return (*this);
		}

		/**
		 * @brief NFFilePtrA = FILE* ÀÌÅÍ·¹ÀÌÅÍ
		 * @warning NFFilePtr¿¡¼­ ÀÚµ¿ fclose°¡ µË´Ï´Ù.    \r\n
		 *          FILE*°´Ã¼¸¦ fcloseÇÏ¸é ¹®Á¦°¡ ¹ß»ýÇÒ ¼öÀÖ½À´Ï´Ù.
		 */
		NFFilePtrA& operator=(FILE* _Right) throw()
		{
			Reset(_Right);
			return (*this);
		}

		/**
		 * @brief FILE* Çüº¯È¯ ¿ÀÆÛ·¹ÀÌÅÍ ÀÔ´Ï´Ù.
		 * @return ÇöÀçÀÇ ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		operator FILE*() const throw()
		{
			return m_pFile;
		}

		/**
		 * @brief ÆÄÀÏ Æ÷ÀÎÅ͸¦ ÃʱâÈ­ ÇÕ´Ï´Ù. FILEÀÌ close µÇÁö ¾Ê½À´Ï´Ù.
		 * @return  ÇöÀçÀÇ ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		FILE* Release()
		{
			FILE* fp = m_pFile;
			m_pFile = NULL;
			return fp;
		}

		/**
		 * @brief »õ·Î¿î °ªÀ¸·Î Àç¼³Á¤ÇÕ´Ï´Ù. ±âÁ¸ÀÇ FILEÀº close µË´Ï´Ù.
		 * @param fp »õ·Î¿î ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		void Reset(LPCSTR file, LPCSTR mode)
		{
			if(m_pFile)
				fclose(m_pFile);

			m_pFile = fopen(file, mode);
		}

		/**
		 * @brief »õ·Î¿î °ªÀ¸·Î Àç¼³Á¤ÇÕ´Ï´Ù.
		 *   ±âÁ¸ÀÇ FILEÀº close µË´Ï´Ù.
		 * @param fp »õ·Î¿î ÆÄÀÏ Æ÷ÀÎÅÍ
		 */
		void Reset(FILE* fp)
		{
			if(m_pFile)
				fclose(m_pFile);

			m_pFile = fp;
		}

		/**
		* @brief ÆÄÀÏÀÇ ³¡ÀÎÁö °Ë»çÇÕ´Ï´Ù.
		*/
		int IsEOF()
		{
			return feof(m_pFile);
		}

		/**
		 * @brief ÆÄÀÏÀÇ ±æÀ̸¦ ¸®ÅÏÇÕ´Ï´Ù.
		 * @return  ÆÄÀÏÀÇ ±æÀÌ
		 */
		long Length()
		{
			fpos_t cuspos;
			if(fgetpos( m_pFile, &cuspos ) != 0)
			return -1; // error

			fseek( m_pFile, 0L, SEEK_END );
			long length = ftell( m_pFile );

			fsetpos(m_pFile, &cuspos);
			return length;
		}


	private:
		/// ÆÄÀÏ Æ÷ÀÎÅÍ
		FILE* m_pFile;
	};

}