/*
===========================================================================

Return to Castle Wolfenstein single player GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company. 

This file is part of the Return to Castle Wolfenstein single player GPL Source Code (“RTCW SP Source Code”).  

RTCW SP Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

RTCW SP Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with RTCW SP Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the RTCW SP Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the RTCW SP Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

//===========================================================================
//
// Name:         l_log.c
// Function:     log file stuff
// Programmer:   Mr Elusive (MrElusive@demigod.demon.nl)
// Last update:  1997-12-31
// Tab Size:     3
//===========================================================================

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "qbsp.h"

#define MAX_LOGFILENAMESIZE     1024

typedef struct logfile_s
{
	char filename[MAX_LOGFILENAMESIZE];
	FILE *fp;
	int numwrites;
} logfile_t;

logfile_t logfile;

//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Log_Open( char *filename ) {
	if ( !filename || !strlen( filename ) ) {
		printf( "openlog <filename>\n" );
		return;
	} //end if
	if ( logfile.fp ) {
		printf( "log file %s is already opened\n", logfile.filename );
		return;
	} //end if
	logfile.fp = fopen( filename, "wb" );
	if ( !logfile.fp ) {
		printf( "can't open the log file %s\n", filename );
		return;
	} //end if
	strncpy( logfile.filename, filename, MAX_LOGFILENAMESIZE );
	printf( "Opened log %s\n", logfile.filename );
} //end of the function Log_Create
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Log_Close( void ) {
	if ( !logfile.fp ) {
		printf( "no log file to close\n" );
		return;
	} //end if
	if ( fclose( logfile.fp ) ) {
		printf( "can't close log file %s\n", logfile.filename );
		return;
	} //end if
	logfile.fp = NULL;
	printf( "Closed log %s\n", logfile.filename );
} //end of the function Log_Close
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Log_Shutdown( void ) {
	if ( logfile.fp ) {
		Log_Close();
	}
} //end of the function Log_Shutdown
//===========================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//===========================================================================
void Log_UnifyEndOfLine( char *buf ) {
	int i;

	for ( i = 0; buf[i]; i++ )
	{
		if ( buf[i] == '\n' ) {
			if ( i <= 0 || buf[i - 1] != '\r' ) {
				memmove( &buf[i + 1], &buf[i], strlen( &buf[i] ) + 1 );
				buf[i] = '\r';
				i++;
			} //end if
		} //end if
	} //end for
} //end of the function Log_UnifyEndOfLine
//===========================================================================
//
// Parameter:			-
// Returns:				-
// Changes Globals:		-
//===========================================================================
void Log_Print( char *fmt, ... ) {
	va_list ap;
	char buf[2048];

	va_start( ap, fmt );
	vsprintf( buf, fmt, ap );
	va_end( ap );

	if ( verbose ) {
#ifdef WINBSPC
		WinBSPCPrint( buf );
#else
		printf( "%s", buf );
#endif //WINBSPS
	} //end if

	if ( logfile.fp ) {
		Log_UnifyEndOfLine( buf );
		fprintf( logfile.fp, "%s", buf );
		fflush( logfile.fp );
	} //end if
} //end of the function Log_Print
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Log_Write( char *fmt, ... ) {
	va_list ap;
	char buf[2048];

	if ( !logfile.fp ) {
		return;
	}
	va_start( ap, fmt );
	vsprintf( buf, fmt, ap );
	va_end( ap );
	Log_UnifyEndOfLine( buf );
	fprintf( logfile.fp, "%s", buf );
	fflush( logfile.fp );
} //end of the function Log_Write
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Log_WriteTimeStamped( char *fmt, ... ) {
	va_list ap;

	if ( !logfile.fp ) {
		return;
	}
/*	fprintf(logfile.fp, "%d   %02d:%02d:%02d:%02d   ",
					logfile.numwrites,
					(int) (botlibglobals.time / 60 / 60),
					(int) (botlibglobals.time / 60),
					(int) (botlibglobals.time),
					(int) ((int) (botlibglobals.time * 100)) -
							((int) botlibglobals.time) * 100);*/
	va_start( ap, fmt );
	vfprintf( logfile.fp, fmt, ap );
	va_end( ap );
	logfile.numwrites++;
	fflush( logfile.fp );
} //end of the function Log_Write
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
FILE *Log_FileStruct( void ) {
	return logfile.fp;
} //end of the function Log_FileStruct
//===========================================================================
//
// Parameter:				-
// Returns:					-
// Changes Globals:		-
//===========================================================================
void Log_Flush( void ) {
	if ( logfile.fp ) {
		fflush( logfile.fp );
	}
} //end of the function Log_Flush