/**************************************************************************
 *
 * HISTOGRAM.C -  Nagios Alert Histogram CGI
 *
 * Copyright (c) 2001-2006 Ethan Galstad (nagios@nagios.org)
 * Last Modified: 03-21-2006
 *
 * License:
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *************************************************************************/

#include "../include/config.h"
#include "../include/common.h"
#include "../include/objects.h"
#include "../include/statusdata.h"

#include "../include/cgiutils.h"
#include "../include/getcgi.h"
#include "../include/cgiauth.h"

#include <gd.h>			/* Boutell's GD library function */
#include <gdfonts.h>		/* GD library small font definition */


/*#define DEBUG			1*/


#define HISTOGRAM_IMAGE         "histogram.png"

/* archived state types */
#define AS_NO_DATA              0
#define AS_PROGRAM_START        1
#define AS_PROGRAM_END          2
#define AS_HOST_UP		3
#define AS_HOST_DOWN		4
#define AS_HOST_UNREACHABLE	5
#define AS_SVC_OK		6
#define AS_SVC_UNKNOWN		7
#define AS_SVC_WARNING		8
#define AS_SVC_CRITICAL		9


/* display types */
#define DISPLAY_HOST_HISTOGRAM	        0
#define DISPLAY_SERVICE_HISTOGRAM	1
#define DISPLAY_NO_HISTOGRAM    	2

/* input types */
#define GET_INPUT_NONE                  0
#define GET_INPUT_TARGET_TYPE           1
#define GET_INPUT_HOST_TARGET           2
#define GET_INPUT_SERVICE_TARGET        3
#define GET_INPUT_OPTIONS               4

/* breakdown types */
#define BREAKDOWN_MONTHLY       0
#define BREAKDOWN_DAY_OF_MONTH  1
#define BREAKDOWN_DAY_OF_WEEK   2
#define BREAKDOWN_HOURLY        3

/* modes */
#define CREATE_HTML		0
#define CREATE_IMAGE		1

/* standard report times */
#define TIMEPERIOD_CUSTOM	0
#define TIMEPERIOD_TODAY	1
#define TIMEPERIOD_YESTERDAY	2
#define TIMEPERIOD_THISWEEK	3
#define TIMEPERIOD_LASTWEEK	4
#define TIMEPERIOD_THISMONTH	5
#define TIMEPERIOD_LASTMONTH	6
#define TIMEPERIOD_THISQUARTER	7
#define TIMEPERIOD_LASTQUARTER	8
#define TIMEPERIOD_THISYEAR	9
#define TIMEPERIOD_LASTYEAR	10
#define TIMEPERIOD_LAST24HOURS	11
#define TIMEPERIOD_LAST7DAYS	12
#define TIMEPERIOD_LAST31DAYS   13


#define MAX_ARCHIVE_SPREAD	65
#define MAX_ARCHIVE		65
#define MAX_ARCHIVE_BACKTRACKS	60

#define DRAWING_WIDTH	        550
#define DRAWING_HEIGHT	        195
#define DRAWING_X_OFFSET	60