/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** This program 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 2 of the License, or
** (at your option) any later version.
**
** 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/

#include "httppoller.h"

#include "zbxdbhigh.h"
#include "log.h"
#include "zbxnix.h"
#include "zbxself.h"
#include "httptest.h"
#include "zbxtime.h"

/******************************************************************************
 *                                                                            *
 * Purpose: main loop of processing of httptests                              *
 *                                                                            *
 * Comments: never returns                                                    *
 *                                                                            *
 ******************************************************************************/
ZBX_THREAD_ENTRY(httppoller_thread, args)
{
	int			sleeptime = -1, httptests_count = 0, old_httptests_count = 0;
	double			sec, total_sec = 0.0, old_total_sec = 0.0;
	time_t			last_stat_time, nextcheck = 0;
	const zbx_thread_info_t	*info = &((zbx_thread_args_t *)args)->info;
	int			server_num = ((zbx_thread_args_t *)args)->info.server_num;
	int			process_num = ((zbx_thread_args_t *)args)->info.process_num;
	unsigned char		process_type = ((zbx_thread_args_t *)args)->info.process_type;

	zabbix_log(LOG_LEVEL_INFORMATION, "%s #%d started [%s #%d]", get_program_type_string(info->program_type),
			server_num, get_process_type_string(process_type), process_num);

	zbx_update_selfmon_counter(info, ZBX_PROCESS_STATE_BUSY);

#define STAT_INTERVAL	5	/* if a process is busy and does not sleep then update status not faster than */
				/* once in STAT_INTERVAL seconds */

	zbx_setproctitle("%s #%d [connecting to the database]", get_process_type_string(process_type), process_num);
	last_stat_time = time(NULL);

	zbx_db_connect(ZBX_DB_CONNECT_NORMAL);

	while (ZBX_IS_RUNNING())
	{
		sec = zbx_time();
		zbx_update_env(get_process_type_string(process_type), sec);

		if (0 != sleeptime)
		{
			zbx_setproctitle("%s #%d [got %d values in " ZBX_FS_DBL " sec, getting values]",
					get_process_type_string(process_type), process_num, old_httptests_count,
					old_total_sec);
		}

		if ((int)sec >= nextcheck)
		{
			httptests_count += process_httptests((int)sec, &nextcheck);
			total_sec += zbx_time() - sec;

			if (0 == nextcheck)
				nextcheck = time(NULL) + POLLER_DELAY;
		}

		sleeptime = zbx_calculate_sleeptime(nextcheck, POLLER_DELAY);

		if (0 != sleeptime || STAT_INTERVAL <= time(NULL) - last_stat_time)
		{
			if (0 == sleeptime)
			{
				zbx_setproctitle("%s #%d [got %d values in " ZBX_FS_DBL " sec, getting values]",
						get_process_type_string(process_type), process_num, httptests_count,
						total_sec);
			}
			else
			{
				zbx_setproctitle("%s #%d [got %d values in " ZBX_FS_DBL " sec, idle %d sec]",
						get_process_type_string(process_type), process_num, httptests_count,
						total_sec, sleeptime);
				old_httptests_count = httptests_count;
				old_total_sec = total_sec;
			}
			httptests_count = 0;
			total_sec = 0.0;
			last_stat_time = time(NULL);
		}

		zbx_sleep_loop(info, sleeptime);
	}

	zbx_setproctitle("%s #%d [terminated]", get_process_type_string(process_type), process_num);

	while (1)
		zbx_sleep(SEC_PER_MIN);
#undef STAT_INTERVAL
}