pandorafms/pandora_console/include/functions_graph.php

<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2011 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list

// This program is free software; you can redistribute it and/or
// modify it under the terms of the  GNU Lesser General Public License
// as published by the Free Software Foundation; version 2

// 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.

include_once($config['homedir'] . "/include/graphs/fgraph.php");
include_once($config['homedir'] . "/include/functions_reporting.php");
include_once($config['homedir'] . "/include/functions_agents.php");
include_once($config['homedir'] . "/include/functions_modules.php");
include_once($config['homedir'] . "/include/functions_users.php");

define("GRAPH_AREA", 0);
define("GRAPH_STACKED_AREA", 1);
define("GRAPH_LINE", 2);
define("GRAPH_STACKED_LINE", 3);

function grafico_modulo_sparse_data_chart (&$chart, &$chart_data_extra, &$long_index, 
				$data, $data_i, $resolution, $interval, $period, $datelimit, 
				$projection, $avg_only = false, $uncompressed_module = false, 
				$show_events = false, $show_alerts = false, $baseline = false, 
				$baseline_data = array(), $events = array(), $series_suffix = '') {
	
	global $config;
	$flash_chart = $config['flash_charts'];
	
	// Event iterator
	$event_i = 0;
	
	// Calculate chart data
	for ($i = 0; $i < $resolution; $i++) {
		$timestamp = $datelimit + ($interval * $i);

		$total = 0;
		$count = 0;
		
		// Read data that falls in the current interval
		$interval_min = false;
		$interval_max = false;

		while (isset ($data[$data_i]) && $data[$data_i]['utimestamp'] >= $timestamp && $data[$data_i]['utimestamp'] < ($timestamp + $interval)) {
			if ($interval_min === false) {
				$interval_min = $data[$data_i]['datos'];
			}
			if ($interval_max === false) {
				$interval_max = $data[$data_i]['datos'];
			}
			
			if ($data[$data_i]['datos'] > $interval_max) {
				$interval_max = $data[$data_i]['datos'];
			} else if ($data[$data_i]['datos'] < $interval_min) {
				$interval_min = $data[$data_i]['datos'];
			}
			$total += $data[$data_i]['datos'];
			$count++;
			$data_i++;
		}
		
		// Data in the interval
		if ($count > 0) {
			$total /= $count;
		}
		
		// Read events and alerts that fall in the current interval
		$event_value = 0;
		$alert_value = 0;
		$event_ids = array();
		$alert_ids = array();
		while (isset ($events[$event_i]) && $events[$event_i]['utimestamp'] >= $timestamp && $events[$event_i]['utimestamp'] <= ($timestamp + $interval)) {
			if ($show_events == 1) {
				$event_value++;
				$event_ids[] = $events[$event_i]['id_evento'];
			}
			if ($show_alerts == 1 && substr ($events[$event_i]['event_type'], 0, 5) == 'alert') {
				$alert_value++;
				$alert_ids[] = $events[$event_i]['id_evento'];
			}
			$event_i++;
		}
		
		if (!$flash_chart) {
			// Set the title and time format
			if ($period <= SECONDS_6HOURS) {
				$time_format = 'H:i:s';
			}
			elseif ($period < SECONDS_1DAY) {
				$time_format = 'H:i';
			}
			elseif ($period < SECONDS_15DAYS) {
				$time_format = "M \nd H:i";
			}
			elseif ($period < SECONDS_1MONTH) {
				$time_format = "M \nd H\h";
			} 
			else {
				$time_format = "M \nd H\h";
			}
		}
		else {
			// Set the title and time format
			if ($period <= SECONDS_6HOURS) {
				$time_format = 'H:i:s';
			}
			elseif ($period < SECONDS_1DAY) {
				$time_format = 'H:i';
			}
			elseif ($period < SECONDS_15DAYS) {
				$time_format = "M d H:i";
			}
			elseif ($period < SECONDS_1MONTH) {
				$time_format = "M d H\h";
			} 
			else {
				$time_format = "M d H\h";
			}
		}
		
		$timestamp_short = date($time_format, $timestamp);
		$long_index[$timestamp_short] = date(
			html_entity_decode($config['date_format'], ENT_QUOTES, "UTF-8"), $timestamp);
		if (!$projection){
			$timestamp = $timestamp_short;
		}
		// Data
		if($show_events) {
			$chart[$timestamp]['event'.$series_suffix] = $event_value;
			$series_type['event'.$series_suffix] = 'points';
		}
		if($show_alerts) {
			$chart[$timestamp]['alert'.$series_suffix] = $alert_value;
			$chart[$timestamp]['alert'.$series_suffix] = $alert_value;
			$chart[$timestamp]['alert'.$series_suffix] = $alert_value;
			$series_type['alert'.$series_suffix] = 'points';
		}

		if ($count > 0) {
			if ($avg_only) {
				$chart[$timestamp]['sum'.$series_suffix] = $total;
			}
			else {
				$chart[$timestamp]['max'.$series_suffix] = $interval_max;
				$chart[$timestamp]['sum'.$series_suffix] = $total;
				$chart[$timestamp]['min'.$series_suffix] = $interval_min;
			}
			$previous_data = $total;
		// Compressed data
		}
		else {
			if ($uncompressed_module || ($timestamp > time ())) {
				if ($avg_only) {
					$chart[$timestamp]['sum'.$series_suffix] = 0;
				}
				else {
					$chart[$timestamp]['max'.$series_suffix] = 0;
					$chart[$timestamp]['sum'.$series_suffix] = 0;
					$chart[$timestamp]['min'.$series_suffix] = 0;
				}
			}
			else {
				if ($avg_only) {
					$chart[$timestamp]['sum'.$series_suffix] = $previous_data;
				}
				else {
					$chart[$timestamp]['max'.$series_suffix] = $previous_data;
					$chart[$timestamp]['sum'.$series_suffix] = $previous_data;
					$chart[$timestamp]['min'.$series_suffix] = $previous_data;
				}
			}
		}
		
		//$chart[$timestamp]['count'] = 0;
		/////////
		//$chart[$timestamp]['timestamp_bottom'] = $timestamp;
		//$chart[$timestamp]['timestamp_top'] = $timestamp + $interval;
		/////////

		if ($baseline) {
			$chart[$timestamp]['baseline'.$series_suffix] = array_shift ($baseline_data);
			if ($chart[$timestamp]['baseline'.$series_suffix] == NULL) {
				$chart[$timestamp]['baseline'.$series_suffix] = 0;
			}
		}
		
		if(!empty($event_ids)) {
			$chart_extra_data[count($chart)-1]['events'.$series_suffix] = implode(',',$event_ids);
		}
		if(!empty($alert_ids)) {
			$chart_extra_data[count($chart)-1]['alerts'.$series_suffix] = implode(',',$alert_ids);
		}
	}
}


function grafico_modulo_sparse_data ($agent_module_id, $period, $show_events,
				$width, $height , $title = '', $unit_name = null,
				$show_alerts = false, $avg_only = 0, $date = 0, $unit = '', 
				$baseline = 0, $return_data = 0, $show_title = true, $projection = false, 
				$adapt_key = '', $compare = false, $series_suffix = '', $series_suffix_str = '') {
					
	global $config;
	global $chart;
	global $color;
	global $legend;
	global $long_index;
	global $series_type;
	global $chart_extra_data;
	global $warning_min;
	global $critical_min;
	
	$chart = array();
	$color = array();
	$legend = array();
	$long_index = array();
	$series_type = array();
	$chart_extra_data = array();
	$warning_min = 0;
	$critical_min = 0;
	
	// Set variables
	if ($date == 0) $date = get_system_time();
	$datelimit = $date - $period;
	$resolution = $config['graph_res'] * 50; //Number of points of the graph
	$interval = (int) ($period / $resolution);
	$agent_name = modules_get_agentmodule_agent_name ($agent_module_id);
	$agent_id = agents_get_agent_id ($agent_name);
	$module_name = modules_get_agentmodule_name ($agent_module_id);
	$id_module_type = modules_get_agentmodule_type ($agent_module_id);
	$module_type = modules_get_moduletype_name ($id_module_type);
	$uncompressed_module = is_module_uncompressed ($module_type);
	if ($uncompressed_module) {
		$avg_only = 1;
	}
	
	$flash_chart = $config['flash_charts'];
	
	// Get event data (contains alert data too)
	$events = array();
	if ($show_events == 1 || $show_alerts == 1) {
		$events = db_get_all_rows_filter ('tevento',
			array ('id_agentmodule' => $agent_module_id,
				"utimestamp > $datelimit",
				"utimestamp < $date",
				'order' => 'utimestamp ASC'),
			array ('id_evento', 'evento', 'utimestamp', 'event_type'));
		if ($events === false) {
			$events = array ();
		}
	}
	
	// Get module data
	$data = db_get_all_rows_filter ('tagente_datos',
		array ('id_agente_modulo' => $agent_module_id,
			"utimestamp > $datelimit",
			"utimestamp < $date",
			'order' => 'utimestamp ASC'),
		array ('datos', 'utimestamp'), 'AND', true);
	
	// Get module warning_min and critical_min
	$warning_min = db_get_value('min_warning','tagente_modulo','id_agente_modulo',$agent_module_id);
	$critical_min = db_get_value('min_critical','tagente_modulo','id_agente_modulo',$agent_module_id);
		
	if ($data === false) {
		$data = array ();
	}
	
	// Uncompressed module data
	if ($uncompressed_module) {
		$min_necessary = 1;
	
	// Compressed module data
	}
	else {
		// Get previous data
		$previous_data = modules_get_previous_data ($agent_module_id, $datelimit);
		if ($previous_data !== false) {
			$previous_data['utimestamp'] = $datelimit;
			array_unshift ($data, $previous_data);
		}
		
		// Get next data
		$nextData = modules_get_next_data ($agent_module_id, $date);
		if ($nextData !== false) {
			array_push ($data, $nextData);
		}
		else if (count ($data) > 0) {
			// Propagate the last known data to the end of the interval
			$nextData = array_pop ($data);
			array_push ($data, $nextData);
			$nextData['utimestamp'] = $date;
			array_push ($data, $nextData);
		}
		
		$min_necessary = 2;
	}
	
	// Check available data
	if (count ($data) < $min_necessary) {
		if (!$graphic_type) {
			if (!$projection) {
				return fs_error_image ();
			}
			else{
				return fs_error_image ();
			}
		}
		graphic_error ();
	}
	
	// Data iterator
	$data_i = 0;
	
	// Set initial conditions
	if ($data[0]['utimestamp'] == $datelimit) {
		$previous_data = $data[0]['datos'];
		$data_i++;
	}
	else {
		$previous_data = 0;
	}
	
	// Get baseline data
	$baseline_data = array();
	if ($baseline) {
		$baseline_data = array ();
		if ($baseline == 1) {
			$baseline_data = enterprise_hook ('reporting_enterprise_get_baseline', array ($agent_module_id, $period, $width, $height , $title, $unit_name, $date));
			if ($baseline_data === ENTERPRISE_NOT_HOOK) {
				$baseline_data = array ();
			}
		}
	}
	
	if (empty($unit)){
		$unit = modules_get_unit($agent_module_id);
	}
	
	// Calculate chart data
	grafico_modulo_sparse_data_chart ($chart, $chart_data_extra, $long_index, 
		$data, $data_i, $resolution, $interval, $period, $datelimit, 
		$projection, $avg_only, $uncompressed_module, 
		$show_events, $show_alerts, $baseline, 
		$baseline_data, $events, $series_suffix);
	
	// Return chart data and don't draw
	if ($return_data == 1) {
		return $chart;
	}
	
	// Get min, max and avg (less efficient but centralized for all modules and reports)
	$min_value = round(reporting_get_agentmodule_data_min ($agent_module_id, $period, $date), 2);
	$max_value = round(reporting_get_agentmodule_data_max ($agent_module_id, $period, $date), 2);
	$avg_value = round(reporting_get_agentmodule_data_average ($agent_module_id, $period, $date), 2);
	
	// Fix event and alert scale
	$event_max = $max_value * 1.15;
	foreach ($chart as $timestamp => $chart_data) {
		if ($show_events && $chart_data['event'.$series_suffix] > 0) {
			$chart[$timestamp]['event'.$series_suffix] = $event_max * 1.15;
		}
		if ($show_alerts && $chart_data['alert'] > 0) {
			$chart[$timestamp]['alert'.$series_suffix] = $event_max;
		}
	}
	
	// Only show caption if graph is not small
	if ($width > MIN_WIDTH_CAPTION && $height > MIN_HEIGHT)
		//Flash chart
		$caption = __('Max. Value').$series_suffix_str . ': ' . $max_value . '    ' . __('Avg. Value').$series_suffix_str . ': ' . $avg_value . '    ' . __('Min. Value').$series_suffix_str . ': ' . $min_value . '    ' . __('Units. Value').$series_suffix_str . ': ' . $unit;
	else
		$caption = array();
	
	///////
	// Color commented not to restrict serie colors
	if($show_events) {
		$color['event'.$series_suffix] = array('border' => '#ff0000', 'color' => '#ff0000', 'alpha' => 50);
	}
	if($show_alerts) {
		$color['alert'.$series_suffix] = array('border' => '#ff7f00', 'color' => '#ff7f00', 'alpha' => 50);
	}
	$color['max'.$series_suffix] = array('border' => '#000000', 'color' => $config['graph_color3'], 'alpha' => 50);
	$color['sum'.$series_suffix] = array('border' => '#000000', 'color' => $config['graph_color2'], 'alpha' => 50);
	$color['min'.$series_suffix] = array('border' => '#000000', 'color' => $config['graph_color1'], 'alpha' => 50);
	$color['baseline'.$series_suffix] = array('border' => null, 'color' => '#0097BD', 'alpha' => 10);
	$color['unit'.$series_suffix] = array('border' => null, 'color' => '#0097BC', 'alpha' => 10);		
	
	if($show_events) {
		$legend['event'.$series_suffix] = __('Events');
		$chart_extra_data['legend_events'] = $legend['event'];
	}
	if($show_alerts) {
		$legend['alert'.$series_suffix] = __('Alerts');
		$chart_extra_data['legend_alerts'] = $legend['alert'];
	}
	
	if (!$avg_only){
		$legend['max'.$series_suffix] = __('Max').$series_suffix_str . ' (' .format_for_graph($max_value) . ') ' . $unit;
		$legend['sum'.$series_suffix] = __('Avg').$series_suffix_str . ' (' . $avg_value . ') ' . $unit;
		$legend['min'.$series_suffix] = __('Min').$series_suffix_str . ' (' . format_for_graph($min_value) . ') ' . $unit;
	}
	else
		$legend['sum'.$series_suffix] = __('Avg').$series_suffix_str . ' (' . $avg_value . ') ' . $unit;	
	if ($baseline) {
		$legend['baseline'.$series_suffix] = __('Baseline');
	}
}

function grafico_modulo_sparse ($agent_module_id, $period, $show_events,
	$width, $height , $title = '', $unit_name = null,
	$show_alerts = false, $avg_only = 0, $pure = false,
	$date = 0, $unit = '', $baseline = 0, $return_data = 0, 
	$show_title = true, $only_image = false, $homeurl = '', $ttl = 1, 
	$projection = false, $adapt_key = '', $compare = false) {
	
	global $config;
	global $graphic_type;
	
	$flash_chart = $config['flash_charts'];
	
	enterprise_include_once("include/functions_reporting.php");
	
	global $chart;
	global $color;
	global $legend;
	global $long_index;
	global $series_type;
	global $chart_extra_data;
	global $warning_min;
	global $critical_min;
	
	if($compare !== false) {
		$series_suffix = '2';
		$series_suffix_str = ' ('.__('Previous').')';
		// Build the data of the previous period
		grafico_modulo_sparse_data ($agent_module_id, $period, $show_events,
			$width, $height , $title, $unit_name,
			$show_alerts, $avg_only, $date-$period, $unit, $baseline, $return_data, 
			$show_title, $projection, $adapt_key, $compare, 
			$series_suffix, $series_suffix_str);
		
		switch($compare) {
			case 'separated':
				// Store the chart calculated
				$chart_prev = $chart;
				$legend_prev = $legend;
				$long_index_prev = $long_index;
				break;
			case 'overlapped':
				// Store the chart calculated deleting index, because will be over the current period
				$chart_prev = array_values($chart);
				$legend_prev = $legend;
				break;
		}
	}
	
	// Build the data of the current period
	$data_returned = grafico_modulo_sparse_data ($agent_module_id, $period, $show_events,
		$width, $height , $title, $unit_name,
		$show_alerts, $avg_only, $date, $unit, $baseline, 
		$return_data, $show_title, $projection, $adapt_key, $compare);
	
	if ($return_data) {
		return $data_returned;
	}
	
	if($compare === 'overlapped') {
		$i = 0;
		foreach($chart as $k=>$v) {
			$chart[$k] = array_merge($v,$chart_prev[$i]);
			$i++;
		}
		
		$legend = array_merge($legend, $legend_prev);
	}
	
	if ($only_image) {
		$flash_chart = false;
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	if ($compare === 'separated') {
		return area_graph($flash_chart, $chart, $width, $height/2, $color, $legend,
			$long_index, ui_get_full_url("images/image_problem.opaque.png"), "", $unit, $homeurl,
			$water_mark, $config['fontpath'], $config['font_size'], $unit, $ttl, 
			$series_type, $chart_extra_data, $warning_min, $critical_min, $adapt_key).
			 '<br>'.
			 area_graph($flash_chart, $chart_prev, $width, $height/2, $color, $legend_prev,
			$long_index_prev, ui_get_full_url("images/image_problem.opaque.png"), "", $unit, $homeurl,
			$water_mark, $config['fontpath'], $config['font_size'], $unit, $ttl, 
			$series_type, $chart_extra_data, $warning_min, $critical_min, $adapt_key);
	}
	else {
		// Color commented not to restrict serie colors
		return area_graph($flash_chart, $chart, $width, $height, $color, $legend,
			$long_index, ui_get_full_url("images/image_problem.opaque.png"), "", $unit, $homeurl,
			$water_mark, $config['fontpath'], $config['font_size'], $unit, $ttl, 
			$series_type, $chart_extra_data, $warning_min, $critical_min, $adapt_key);
	}
}

function graph_get_formatted_date($timestamp, $format1, $format2) {
	global $config;
	
	if ($config['flash_charts']) {
		$date = date("$format1 $format2", $timestamp);
	}
	else {
		$date = date($format1, $timestamp);
		if ($format2 != '') {
			$date .= "\n".date($format2, $timestamp);
		}
	}
	
	return $date;
}

/**
 * Produces a combined/user defined graph
 *
 * @param array List of source modules
 * @param array List of weighs for each module
 * @param int Period (in seconds)
 * @param int Width, in pixels
 * @param int Height, in pixels
 * @param string Title for graph
 * @param string Unit name, for render in legend
 * @param int Show events in graph (set to 1)
 * @param int Show alerts in graph (set to 1)
 * @param int Pure mode (without titles) (set to 1)
 * @param int Date to start of getting info.
 * @param mixed If is a projection graph this parameter will be module data with prediction data (the projection) 
 * or false in other case.
 * 
 * @return Mixed 
 */
function graphic_combined_module ($module_list, $weight_list, $period, $width, $height,
	$title, $unit_name, $show_events = 0, $show_alerts = 0, $pure = 0,
	$stacked = 0, $date = 0, $only_image = false, $homeurl = '', $ttl = 1, $projection = false, $prediction_period = false) {
	global $config;
	global $graphic_type;
	
	$time_format_2 = '';
	$temp_range = $period;
	
	if ($projection != false) {
		if ($period < $prediction_period)
			$temp_range = $prediction_period;
	}
	
	// Set the title and time format
	if ($temp_range <= SECONDS_6HOURS) {
		$time_format = 'H:i:s';
	}
	elseif ($temp_range < SECONDS_1DAY) {
		$time_format = 'H:i';
	}
	elseif ($temp_range < SECONDS_15DAYS) {
		$time_format = 'M d';
		$time_format_2 = 'H:i';
		if ($projection != false) {
			$time_format_2 = 'H\h';
		}
	}
	elseif ($temp_range <= SECONDS_1MONTH) {
		$time_format = 'M d';
		$time_format_2 = 'H\h';
	} 
	else {
		$time_format = 'M d';
	}
	
	// Set variables
	if ($date == 0)
		$date = get_system_time();
	$datelimit = $date - $period;
	$resolution = $config['graph_res'] * 50; //Number of points of the graph
	$interval = (int) ($period / $resolution);
	
	// If projection graph, fill with zero previous data to projection interval	
	if ($projection != false) {
		$j = $datelimit;
		$in_range = true;
		while ($in_range){
			$timestamp_f = graph_get_formatted_date($j, $time_format, $time_format_2);
			
			//$timestamp_f = date('d M Y H:i:s', $j);
			$before_projection[$timestamp_f] = 0;
			
			if ($j > $date){
				$in_range = false;
			}
			$j = $j + $interval;
		}
	}
	
	// Added support for projection graphs (normal_module + 1(prediction data))
	if ($projection !== false) { 
		$module_number = count ($module_list) + 1;
	}
	else {
		$module_number = count ($module_list);
	}
	
	// interval - This is the number of "rows" we are divided the time to fill data.
	//    more interval, more resolution, and slower.
	// periodo - Gap of time, in seconds. This is now to (now-periodo) secs
	
	// Init weights
	for ($i = 0; $i < $module_number; $i++) {
		if (! isset ($weight_list[$i])) {
			$weight_list[$i] = 1;
		}
		else if ($weight_list[$i] == 0) {
			$weight_list[$i] = 1;
		}
	}
	
	// Set data containers
	for ($i = 0; $i < $resolution; $i++) {
		$timestamp = $datelimit + ($interval * $i);/*
		$timestamp_short = date($time_format, $timestamp);
		$long_index[$timestamp_short] = date(
		html_entity_decode($config['date_format'], ENT_QUOTES, "UTF-8"), $timestamp);
		$timestamp = $timestamp_short;*/
		
		$graph[$timestamp]['count'] = 0;
		$graph[$timestamp]['timestamp_bottom'] = $timestamp;
		$graph[$timestamp]['timestamp_top'] = $timestamp + $interval;
		$graph[$timestamp]['min'] = 0;
		$graph[$timestamp]['max'] = 0;
		$graph[$timestamp]['event'] = 0;
		$graph[$timestamp]['alert'] = 0;
	}
	
	$long_index = array();
	
	$graph_values = array();
	$module_name_list = array();
	
	// Calculate data for each module
	for ($i = 0; $i < $module_number; $i++) {
		// If its a projection graph, first module will be data and second will be the projection
		if ($projection != false && $i != 0) {
			$agent_module_id = $module_list[0];
			
			//Get and process agent name
			$agent_name = io_safe_output(
				modules_get_agentmodule_agent_name ($agent_module_id));
			$agent_name = ui_print_truncate_text($agent_name, 'agent_small', false, true, false, '...', false);
			
			
			$agent_id = agents_get_agent_id ($agent_name);
			
			
			//Get and process module name
			$module_name = io_safe_output(
				modules_get_agentmodule_name ($agent_module_id));
			$module_name = sprintf(__("projection for %s"), $module_name);
			$module_name = ui_print_truncate_text($module_name, 'module_small', false, true, false, '...', false);
			
			
			$module_name_list[$i] = $agent_name ." / ". $module_name;
			$id_module_type = modules_get_agentmodule_type ($agent_module_id);
			$module_type = modules_get_moduletype_name ($id_module_type);
			$uncompressed_module = is_module_uncompressed ($module_type);
		}
		else {
			$agent_module_id = $module_list[$i];
			
			//Get and process agent name
			$agent_name = io_safe_output(
				modules_get_agentmodule_agent_name ($agent_module_id));
			$agent_name = ui_print_truncate_text($agent_name, 'agent_small', false, true, false, '...', false);
			
			
			$agent_id = agents_get_agent_id ($agent_name);
			
			//Get and process module name
			$module_name = io_safe_output(
				modules_get_agentmodule_name ($agent_module_id));
			$module_name = ui_print_truncate_text($module_name, 'module_small', false, true, false, '...', false);
			
			$module_name_list[$i] = $agent_name . " / " . $module_name;
			$id_module_type = modules_get_agentmodule_type ($agent_module_id);
			$module_type = modules_get_moduletype_name ($id_module_type);
			$uncompressed_module = is_module_uncompressed ($module_type);
		}
		
		if ($uncompressed_module) {
			$avg_only = 1;
		}
		
		// Get event data (contains alert data too)
		if ($show_events == 1 || $show_alerts == 1) {
			$events = db_get_all_rows_filter ('tevento',
				array ('id_agentmodule' => $agent_module_id,
					"utimestamp > $datelimit",
					"utimestamp < $date",
					'order' => 'utimestamp ASC'),
				array ('evento', 'utimestamp', 'event_type'));
			if ($events === false) {
				$events = array ();
			}
		}
		
		// Get module data
		$data = db_get_all_rows_filter ('tagente_datos',
			array ('id_agente_modulo' => $agent_module_id,
				"utimestamp > $datelimit",
				"utimestamp < $date",
				'order' => 'utimestamp ASC'),
			array ('datos', 'utimestamp'), 'AND', true);
		if ($data === false) {
			$data = array ();
		}
		
		// Uncompressed module data
		if ($uncompressed_module) {
			$min_necessary = 1;
		
		// Compressed module data
		}
		else {
			// Get previous data
			$previous_data = modules_get_previous_data ($agent_module_id, $datelimit);
			if ($previous_data !== false) {
				$previous_data['utimestamp'] = $datelimit;
				array_unshift ($data, $previous_data);
			}
			
			// Get next data
			$nextData = modules_get_next_data ($agent_module_id, $date);
			if ($nextData !== false) {
				array_push ($data, $nextData);
			} else if (count ($data) > 0) {
				// Propagate the last known data to the end of the interval
				$nextData = array_pop ($data);
				array_push ($data, $nextData);
				$nextData['utimestamp'] = $date;
				array_push ($data, $nextData);
			}
			
			$min_necessary = 2;
		}
		
		// Set initial conditions
		$graph_values[$i] = array();
		
		// Check available data
		if (count ($data) < $min_necessary) {
			continue;
		}
		
		// Data iterator
		$j = 0;
		
		// Event iterator
		$k = 0;
		
		// Set initial conditions
		
		//$graph_values[$i] = array();
		$temp_graph_values = array();
		
		if ($data[0]['utimestamp'] == $datelimit) {
			$previous_data = $data[0]['datos'];
			$j++;
		}
		else {
			$previous_data = 0;
		}
		
		$max = 0;
		$min = null;
		$avg = 0;
		$countAvg = 0;
		
		// Calculate chart data
		for ($l = 0; $l < $resolution; $l++) {
			$countAvg ++;
			
			$timestamp = $datelimit + ($interval * $l);
			$timestamp_short = graph_get_formatted_date($timestamp, $time_format, $time_format_2);
			
			$long_index[$timestamp_short] = date(
			html_entity_decode($config['date_format'], ENT_QUOTES, "UTF-8"), $timestamp);
			//$timestamp = $timestamp_short;
			
			$total = 0;
			$count = 0;
			
			// Read data that falls in the current interval
			$interval_min = $previous_data;
			$interval_max = $previous_data;
			while (isset ($data[$j]) && $data[$j]['utimestamp'] >= $timestamp && $data[$j]['utimestamp'] < ($timestamp + $interval)) {
				if ($data[$j]['datos'] > $interval_max) {
					$interval_max = $data[$j]['datos'];
				}
				else if ($data[$j]['datos'] < $interval_max) {
					$interval_min = $data[$j]['datos'];
				}
				$total += $data[$j]['datos'];
				$count++;
				$j++;
			}
			
			// Average
			if ($count > 0) {
				$total /= $count;
			}
			
			// Read events and alerts that fall in the current interval
			$event_value = 0;
			$alert_value = 0;
			while (isset ($events[$k]) && $events[$k]['utimestamp'] >= $timestamp && $events[$k]['utimestamp'] <= ($timestamp + $interval)) {
				if ($show_events == 1) {
					$event_value++;
				}
				if ($show_alerts == 1 && substr ($events[$k]['event_type'], 0, 5) == 'alert') {
					$alert_value++;
				}
				$k++;
			}
			
			// Data
			if ($count > 0) {
				//$graph_values[$i][$timestamp] = $total * $weight_list[$i];
				$temp_graph_values[$timestamp_short] = $total * $weight_list[$i];
				
				$previous_data = $total;
			}
			else {
				// Compressed data
				if ($uncompressed_module || ($timestamp > time ())) {
					//$graph_values[$i][$timestamp] = 0;
					$temp_graph_values[$timestamp_short] = 0;
				}
				else {
					//$graph_values[$i][$timestamp] = $previous_data * $weight_list[$i];
					$temp_graph_values[$timestamp_short] = $previous_data * $weight_list[$i];
				}
			}
			
			//Extract max, min, avg
			if ($max < $temp_graph_values[$timestamp_short]) {
				$max = $temp_graph_values[$timestamp_short];
			}
			
			if (isset($min)) {
				if ($min > $temp_graph_values[$timestamp_short]) {
					$min = $temp_graph_values[$timestamp_short];
				}
			}
			else {
				$min = $temp_graph_values[$timestamp_short];
			}
			$avg += $temp_graph_values[$timestamp_short];
			
			// Added to support projection graphs
			if ($projection != false and $i != 0) {
				$projection_data = array();
				$projection_data = array_merge($before_projection, $projection); 
				$graph_values[$i] = $projection_data;
			}
			else {
				$graph_values[$i] = $temp_graph_values; 
			}
		}
		
		//Add the max, min and avg in the legend
		$avg = round($avg / $countAvg, 1);
		
		$min = format_for_graph($min);
		$max = format_for_graph($max);
		$avg = format_for_graph($avg);
		$units = modules_get_unit($agent_module_id);
		
		if ($projection == false or ($projection != false and $i == 0)){
			$module_name_list[$i] .= " (".__("Max"). ":$max, ".__("Min"). ":$min, ". __("Avg"). ": $avg, ". __("Units"). ": $units)";
		}
		
		if ($weight_list[$i] != 1) {
			//$module_name_list[$i] .= " (x". format_numeric ($weight_list[$i], 1).")";
			$module_name_list[$i] .= " (x". format_numeric ($weight_list[$i], 1).")";
		}
		
		//$graph_values[$module_name_list[$i]] = $graph_values[$i];
		//unset($graph_values[$i]);
		
		//$graph_values[$i] = $graph_values[$i];
	}
	$temp = array();
	
	foreach ($graph_values as $graph_group => $point) {
		foreach ($point as $timestamp_point => $point_value) {
			$temp[$timestamp_point][$graph_group] = $point_value;
		}
	}
	$graph_values = $temp;
	
	/*
	for ($i = 0; $i < $module_number; $i++) {
		if ($weight_list[$i] != 1) {
			$module_name_list[$i] .= " (x". format_numeric ($weight_list[$i], 1).")";
		}
	}
	*/
	
	$flash_charts = $config['flash_charts'];
	
	if ($only_image) {
		$flash_charts = false;
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	
	//Work around for fixed the agents name with huge size chars.
	$fixed_font_size = $config['font_size'] - 1;
	
	switch ($stacked) {
		case GRAPH_AREA:
			$color = null; 
			return area_graph($flash_charts, $graph_values, $width, $height,
				$color, $module_name_list, $long_index, ui_get_full_url("images/image_problem.opaque.png"),
				"", "", $homeurl, $water_mark,
				$config['fontpath'], $fixed_font_size, "", $ttl); 
			break;
		default:
		case GRAPH_STACKED_AREA: 
			$color = null;
			return stacked_area_graph($flash_charts, $graph_values, $width, $height,
				$color, $module_name_list, $long_index, ui_get_full_url("images/image_problem.opaque.png"),
				"", "", $water_mark,
				$config['fontpath'], $fixed_font_size, "", $ttl, $homeurl);
			break;
		case GRAPH_LINE:  
			$color = null;
			return line_graph($flash_charts, $graph_values, $width, $height,
				$color, $module_name_list, $long_index, ui_get_full_url("images/image_problem.opaque.png"),
				"", "", $water_mark,
				$config['fontpath'], $fixed_font_size, "", $ttl, $homeurl); 
			break;
		case GRAPH_STACKED_LINE:
			$color = null;
			return stacked_line_graph($flash_charts, $graph_values, $width, $height,
				$color, $module_name_list, $long_index, ui_get_full_url("images/image_problem.opaque.png"),
				"", "", $water_mark,
				$config['fontpath'], $fixed_font_size, "", $ttl, $homeurl);
			break;
	}
}

/**
 * Print a graph with access data of agents
 * 
 * @param integer id_agent Agent ID
 * @param integer width pie graph width
 * @param integer height pie graph height
 * @param integer period time period
 */
function graphic_agentaccess ($id_agent, $width, $height, $period = 0) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	
	$resolution = $config["graph_res"] * ($period * 2 / $width); // Number of "slices" we want in graph
	
	$interval = (int) ($period / $resolution);
	$date = get_system_time ();
	$datelimit = $date - $period;
	$periodtime = floor ($period / $interval);
	$time = array ();
	$data = array ();
	
	$empty_data = true;
	for ($i = 0; $i < $interval; $i++) {
		$bottom = $datelimit + ($periodtime * $i);
		if (! $graphic_type) {
			$name = date('G:i', $bottom);
		}
		else {
			$name = $bottom;
		}
		
		$top = $datelimit + ($periodtime * ($i + 1));
		switch ($config["dbtype"]) {
			case "mysql":
			case "postgresql":
				$data[$name]['data'] = (int) db_get_value_filter ('COUNT(*)',
					'tagent_access',
					array ('id_agent' => $id_agent,
						'utimestamp > '.$bottom,
						'utimestamp < '.$top));
				break;
			case "oracle":
				$data[$name]['data'] = (int) db_get_value_filter ('count(*)',
					'tagent_access',
					array ('id_agent' => $id_agent,
						'utimestamp > '.$bottom,
						'utimestamp < '.$top));
				break;
		}
		
		if ($data[$name]['data'] != 0) {
			$empty_data = false;
		}
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	if ($empty_data)
		echo fs_error_image();
	else {
		echo area_graph($config['flash_charts'], $data, $width, $height,
			null, null, null, ui_get_full_url("images/image_problem.opaque.png"), "", "", "",
			$water_mark,
			$config['fontpath'], $config['font_size'], "");
	}
}

/**
 * Print a pie graph with events data of agent
 * 
 * @param integer width pie graph width
 * @param integer height pie graph height
 * @param integer id_agent Agent ID
 */
function graph_event_module ($width = 300, $height = 200, $id_agent) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$max_items = 6;
	switch ($config["dbtype"]) {
		case "mysql":
		case "postgresql":
			$sql = sprintf ('SELECT COUNT(id_evento) as count_number, nombre
				FROM tevento, tagente_modulo
				WHERE id_agentmodule = id_agente_modulo
					AND disabled = 0 AND tevento.id_agente = %d
				GROUP BY id_agentmodule, nombre LIMIT %d', $id_agent, $max_items);
			break;
		case "oracle":
			$sql = sprintf ('SELECT COUNT(id_evento) as count_number, dbms_lob.substr(nombre,4000,1) as nombre
				FROM tevento, tagente_modulo
				WHERE (id_agentmodule = id_agente_modulo
					AND disabled = 0 AND tevento.id_agente = %d) AND rownum <= %d
				GROUP BY id_agentmodule, dbms_lob.substr(nombre,4000,1)', $id_agent, $max_items);
			break;
	}
	
	$events = db_get_all_rows_sql ($sql);
	if ($events === false) {
		if (! $graphic_type) {
			return fs_error_image ();
		}
		graphic_error ();
		return;
	}
	
	
	foreach ($events as $event) {
		$data[$event['nombre'].' ('.$event['count_number'].')'] = $event["count_number"];
	}
	
	/* System events */
	$sql = "SELECT COUNT(*) FROM tevento WHERE id_agentmodule = 0 AND id_agente = $id_agent";
	$value = db_get_sql ($sql);
	if ($value > 0) {
		$data[__('System').' ('.$value.')'] = $value;
	}
	asort ($data);
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return pie3d_graph($config['flash_charts'], $data, $width, $height, __("other"),
		'', $water_mark,
		$config['fontpath'], $config['font_size']);
}

function progress_bar($progress, $width, $height, $title = '', $mode = 1, $value_text = false, $color = false, $options = false) {
	global $config;
	
	$out_of_lim_str = __("Out of limits");
	$title = "";
	
	if ($value_text === false) {
		$value_text = $progress . "%";
	}
	
	$colorRGB = '';
	if ($color !== false) {
		$colorRGB = html_html2rgb($color);
		$colorRGB = implode('|', $colorRGB);
	}
	
	$class_tag = '';
	$id_tag = '';
	if ($options !== false) {
		foreach ($options as $option_type => $option_value) {
			if ($option_type == 'class')
				$class_tag = ' class="' . $option_value . '" ';
			else if ($option_type == 'id')
				$id_tag = ' id="' . $option_value . '" ';
		}
	}
	
	require_once("include_graph_dependencies.php");
	include_graphs_dependencies($config['homedir'].'/');
	
	$src = ui_get_full_url(
		"/include/graphs/fgraph.php?homeurl=../../&graph_type=progressbar" .
		"&width=".$width."&height=".$height."&progress=".$progress.
		"&mode=" . $mode . "&out_of_lim_str=".$out_of_lim_str .
		"&title=".$title."&font=".$config['fontpath']."&value_text=". $value_text . 
		"&colorRGB=". $colorRGB
		);
	
	return "<img title='" . $title . "' alt='" . $title . "'" . $class_tag . $id_tag . 
		" src='" . $src . "' />";
}

function progress_bubble($progress, $width, $height, $title = '', $mode = 1, $value_text = false, $color = false) {
	global $config;
	
	$out_of_lim_str = __("Out of limits");
	$title = "";
	
	if ($value_text === false) {
		$value_text = $progress . "%";
	}
	
	$colorRGB = '';
	if ($color !== false) {
		$colorRGB = html_html2rgb($color);
		$colorRGB = implode('|', $colorRGB);
	}
	
	require_once("include_graph_dependencies.php");
	include_graphs_dependencies($config['homedir'].'/');
	
	return "<img title='" . $title . "' alt='" . $title . "'" .
		" src='" . $config['homeurl'] . "/include/graphs/fgraph.php?homeurl=../../&graph_type=progressbubble" .
		"&width=".$width."&height=".$height."&progress=".$progress.
		"&mode=" . $mode . "&out_of_lim_str=".$out_of_lim_str .
		"&title=".$title."&font=".$config['fontpath']."&value_text=". $value_text . 
		"&colorRGB=". $colorRGB . "' />";
}

function graph_sla_slicebar ($id, $period, $sla_min, $sla_max, $date, $daysWeek = null, $time_from = null, $time_to = null, $width, $height, $home_url, $ttl = 1) {
	global $config;
	
	$data = reporting_get_agentmodule_sla_array ($id, $period, $sla_min, $sla_max, $date, $daysWeek, $time_from, $time_to);
	$colors = 	array(1 => '#38B800', 2 => '#FFFF00', 3 => '#FF0000', 4 => '#C3C3C3');
	
	return slicesbar_graph($data, $period, $width, $height, $colors, $config['fontpath'],
		$config['round_corner'], $home_url, $ttl);
}

/**
 * Print a pie graph with purge data of agent
 * 
 * @param integer id_agent ID of agent to show
 * @param integer width pie graph width
 * @param integer height pie graph height
 */
function grafico_db_agentes_purge ($id_agent, $width = 380, $height = 300) {
	global $config;
	global $graphic_type;
	
	
	if ($id_agent < 1) {
		$id_agent = -1;
		$query = "";
	}
	else {
		$modules = agents_get_modules ($id_agent);
		$query = sprintf (" AND id_agente_modulo IN (%s)", implode (",", array_keys ($modules)));
	}
	
	// All data (now)
	$time["all"] = get_system_time ();
	// 1 day ago
	$time["1day"] = $time["all"] - SECONDS_1DAY;
	// 1 week ago
	$time["1week"] = $time["all"] - SECONDS_1WEEK;
	// 1 month ago
	$time["1month"] = $time["all"] - SECONDS_1MONTH;
	// Three months ago
	$time["3month"] = $time["all"] - SECONDS_3MONTHS;
	
	$data[__("Today")]        = db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos WHERE utimestamp > %d %s", $time["1day"], $query), 0, true);
	$data["1 ".__("Week")]    = db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos WHERE utimestamp > %d %s", $time["1week"], $query), 0, true);
	$data["1 ".__("Month")]   = db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos WHERE utimestamp > %d %s", $time["1month"], $query), 0, true);
	$data["3 ".__("Months")]  = db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos WHERE utimestamp > %d %s", $time["3month"], $query), 0, true);
	$data[__("Older")]        = db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos WHERE 1=1 %s", $query));
	
	$data[__("Today")]       += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_string WHERE utimestamp > %d %s", $time["1day"], $query), 0, true);
	$data["1 ".__("Week")]   += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_string WHERE utimestamp > %d %s", $time["1week"], $query), 0, true);
	$data["1 ".__("Month")]  += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_string WHERE utimestamp > %d %s", $time["1month"], $query), 0, true);
	$data["3 ".__("Months")] += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_string WHERE utimestamp > %d %s", $time["3month"], $query), 0, true);
	$data[__("Older")]       += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_string WHERE 1=1 %s", $query), 0, true);
	
	$data[__("Today")]       += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_log4x WHERE utimestamp > %d %s", $time["1day"], $query), 0, true);
	$data["1 ".__("Week")]   += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_log4x WHERE utimestamp > %d %s", $time["1week"], $query), 0, true);
	$data["1 ".__("Month")]  += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_log4x WHERE utimestamp > %d %s", $time["1month"], $query), 0, true);
	$data["3 ".__("Months")] += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_log4x WHERE utimestamp > %d %s", $time["3month"], $query), 0, true);
	$data[__("Older")]       += db_get_sql (sprintf ("SELECT COUNT(*) FROM tagente_datos_log4x WHERE 1=1 %s", $query), 0, true);
	
	$data[__("Older")] = $data[__("Older")] - $data["3 ".__("Months")];
	
	if ($data[__("Today")] == 0 && $data["1 ".__("Week")] == 0 && 
		$data["1 ".__("Month")] == 0 && $data["3 ".__("Months")] == 0 && $data[__("Older")] == 0) {
		return html_print_image('images/image_problem.png', true);
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png", 
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return pie3d_graph($config['flash_charts'], $data, $width, $height,
		__('Other'), '', $water_mark,
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a horizontal bar graph with packets data of agents
 * 
 * @param integer width pie graph width
 * @param integer height pie graph height
 */
function grafico_db_agentes_paquetes($width = 380, $height = 300) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$legend = array ();
	
	$agents = agents_get_group_agents (array_keys (users_get_groups ()), false, "none");
	$count = agents_get_modules_data_count (array_keys ($agents));
	unset ($count["total"]);
	arsort ($count, SORT_NUMERIC);
	$count = array_slice ($count, 0, 8, true);
	
	foreach ($count as $agent_id => $value) {
		$data[$agents[$agent_id]]['g'] = $value;
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png", 
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return hbar_graph($config['flash_charts'], $data, $width, $height, array(),
		$legend, "", "", true, "",
		$water_mark,
		$config['fontpath'], $config['font_size'], false);
}

/**
 * Print a horizontal bar graph with modules data of agents
 * 
 * @param integer height graph height
 * @param integer width graph width
 */
function graph_db_agentes_modulos($width, $height) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	
	switch ($config['dbtype']){
		case "mysql":
		case "postgresql":
			$modules = db_get_all_rows_sql ('SELECT COUNT(id_agente_modulo), id_agente
				FROM tagente_modulo
				GROUP BY id_agente
				ORDER BY 1 DESC LIMIT 10');
			break;
		case "oracle":
			$modules = db_get_all_rows_sql ('SELECT COUNT(id_agente_modulo), id_agente
				FROM tagente_modulo
				WHERE rownum <= 10
				GROUP BY id_agente
				ORDER BY 1 DESC');
			break;
	}
	if ($modules === false)
		$modules = array ();
	
	foreach ($modules as $module) {
		$agent_name = agents_get_name ($module['id_agente'], "none");
		switch ($config['dbtype']){
			case "mysql":
			case "postgresql":
				$data[$agent_name]['g'] = $module['COUNT(id_agente_modulo)'];
				break;
			case "oracle":
				$data[$agent_name]['g'] = $module['count(id_agente_modulo)'];
				break;
		}
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
		
	return hbar_graph($config['flash_charts'], $data, $width, $height, array(),
		array(), "", "", true, "",
		$water_mark,
		$config['fontpath'], $config['font_size'], false);
}

/**
 * Print a pie graph with users activity in a period of time
 * 
 * @param integer width pie graph width
 * @param integer height pie graph height
 * @param integer period time period
 */
function graphic_user_activity ($width = 350, $height = 230) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$max_items = 5;
	switch ($config['dbtype']) {
		case "mysql":
		case "postgresql":
			$sql = sprintf ('SELECT COUNT(id_usuario) n_incidents, id_usuario
				FROM tsesion
				GROUP BY id_usuario
				ORDER BY 1 DESC LIMIT %d', $max_items);
			break;
		case "oracle":
			$sql = sprintf ('SELECT COUNT(id_usuario) n_incidents, id_usuario
				FROM tsesion 
				WHERE rownum <= %d
				GROUP BY id_usuario
				ORDER BY 1 DESC', $max_items);
			break;
	}
	$logins = db_get_all_rows_sql ($sql);
	
	if($logins == false) {
		$logins = array();
	}
	foreach ($logins as $login) {
		$data[$login['id_usuario']] = $login['n_incidents'];
	}
	
	return pie3d_graph($config['flash_charts'], $data, $width, $height,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with priodity incident
 */
function grafico_incidente_prioridad () {
	global $config;
	global $graphic_type;
	
	$data_tmp = array (0, 0, 0, 0, 0, 0);
	$sql = 'SELECT COUNT(id_incidencia) n_incidents, prioridad
		FROM tincidencia
		GROUP BY prioridad
		ORDER BY 2 DESC';
	$incidents = db_get_all_rows_sql ($sql);
	
	if($incidents == false) {
		$incidents = array();
	}
	foreach ($incidents as $incident) {
		if ($incident['prioridad'] < 5)
			$data_tmp[$incident['prioridad']] = $incident['n_incidents'];
		else
			$data_tmp[5] += $incident['n_incidents'];
	}
	$data = array (__('Informative') => $data_tmp[0],
		__('Low') => $data_tmp[1],
		__('Medium') => $data_tmp[2],
		__('Serious') => $data_tmp[3],
		__('Very serious') => $data_tmp[4],
		__('Maintenance') => $data_tmp[5]);
	
	return pie3d_graph($config['flash_charts'], $data, 320, 200,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with incidents data
 */
function graph_incidents_status () {
	global $config;
	global $graphic_type;
	$data = array (0, 0, 0, 0);
	
	$data = array ();
	$data[__('Open incident')] = 0;
	$data[__('Closed incident')] = 0;
	$data[__('Outdated')] = 0;
	$data[__('Invalid')] = 0;
	
	$incidents = db_get_all_rows_filter ('tincidencia',
		array ('estado' => array (0, 2, 3, 13)),
		array ('estado'));
	if ($incidents === false)
		$incidents = array ();
	foreach ($incidents as $incident) {
		if ($incident["estado"] == 0)
			$data[__("Open incident")]++;
		if ($incident["estado"] == 2)
			$data[__("Closed incident")]++;
		if ($incident["estado"] == 3)
			$data[__("Outdated")]++;
		if ($incident["estado"] == 13)
			$data[__("Invalid")]++;
	}
	
	return pie3d_graph($config['flash_charts'], $data, 370, 180,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with incident data by group
 */
function graphic_incident_group () {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$max_items = 5;
	$sql = sprintf ('SELECT COUNT(id_incidencia) n_incidents, nombre
		FROM tincidencia,tgrupo
		WHERE tgrupo.id_grupo = tincidencia.id_grupo
		GROUP BY tgrupo.id_grupo, nombre ORDER BY 1 DESC LIMIT %d',
		$max_items);
	$incidents = db_get_all_rows_sql ($sql);
	
	$sql = sprintf ('SELECT COUNT(id_incidencia) n_incidents
		FROM tincidencia
		WHERE tincidencia.id_grupo = 0');
	
	$incidents_all = db_get_value_sql($sql);
	
	if($incidents == false) {
		$incidents = array();
	}
	foreach ($incidents as $incident) {
		$data[$incident['nombre']] = $incident['n_incidents'];
	}
	
	if($incidents_all > 0) {
		$data[__('All')] = $incidents_all;
	}
	
	return pie3d_graph($config['flash_charts'], $data, 320, 200,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a graph with access data of agents
 * 
 * @param integer id_agent Agent ID
 * @param integer width pie graph width
 * @param integer height pie graph height
 * @param integer period time period
 */
function graphic_incident_user () {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$max_items = 5;
	$sql = sprintf ('SELECT COUNT(id_incidencia) n_incidents, id_usuario
		FROM tincidencia
		GROUP BY id_usuario
		ORDER BY 1 DESC LIMIT %d', $max_items);
	$incidents = db_get_all_rows_sql ($sql);
	
	if($incidents == false) {
		$incidents = array();
	}
	foreach ($incidents as $incident) {
		if($incident['id_usuario'] == false) {
			$name = __('System');
		}
		else {
			$name = $incident['id_usuario'];
		}
		
		$data[$name] = $incident['n_incidents'];
	}
	
	return pie3d_graph($config['flash_charts'], $data, 320, 200,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with access data of incidents source
 * 
 * @param integer width pie graph width
 * @param integer height pie graph height
 */
function graphic_incident_source($width = 320, $height = 200) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$max_items = 5;
	
	switch ($config["dbtype"]) {
		case "mysql":
			$sql = sprintf ('SELECT COUNT(id_incidencia) n_incident, origen 
				FROM tincidencia
				GROUP BY `origen`
				ORDER BY 1 DESC LIMIT %d', $max_items);
			break;
		case "postgresql":
			$sql = sprintf ('SELECT COUNT(id_incidencia) n_incident, origen 
				FROM tincidencia
				GROUP BY "origen"
				ORDER BY 1 DESC LIMIT %d', $max_items);
			break;
		case "oracle":
			$sql = sprintf ('SELECT COUNT(id_incidencia) n_incident, origen 
				FROM tincidencia
				WHERE rownum <= %d
				GROUP BY origen
				ORDER BY 1 DESC', $max_items);
			break;
	}
	$origins = db_get_all_rows_sql ($sql);
	
	if($origins == false) {
		$origins = array();
	}
	foreach ($origins as $origin) {
		$data[$origin['origen']] = $origin['n_incident'];
	}
	
	return pie3d_graph($config['flash_charts'], $data, $width, $height,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with events data of group
 * 
 * @param integer width pie graph width
 * @param integer height pie graph height
 * @param string url
 */
function grafico_eventos_grupo ($width = 300, $height = 200, $url = "") {
	global $config;
	global $graphic_type;
	
	$url = html_entity_decode (rawurldecode ($url), ENT_QUOTES); //It was urlencoded, so we urldecode it
	$data = array ();
	$loop = 0;
	define ('NUM_PIECES_PIE', 6);	
	
	$badstrings = array (";", "SELECT ", "DELETE ", "UPDATE ", "INSERT ", "EXEC");	
	//remove bad strings from the query so queries like ; DELETE FROM  don't pass
	$url = str_ireplace ($badstrings, "", $url);
		
	//This will give the distinct id_agente, give the id_grupo that goes
	//with it and then the number of times it occured. GROUP BY statement
	//is required if both DISTINCT() and COUNT() are in the statement 
	switch ($config["dbtype"]) {
		case "mysql":
			$sql = sprintf ('SELECT DISTINCT(id_agente) AS id_agente,
					id_grupo, COUNT(id_agente) AS count
				FROM tevento
				WHERE 1=1 %s
				GROUP BY id_agente
				ORDER BY count DESC', $url); 
			break;
		case "postgresql":
		case "oracle":
			$sql = sprintf ('SELECT DISTINCT(id_agente) AS id_agente,
					id_grupo, COUNT(id_agente) AS count
				FROM tevento
				WHERE 1=1 %s
				GROUP BY id_agente, id_grupo
				ORDER BY count DESC', $url); 
			break;
	}
	
	$result = db_get_all_rows_sql ($sql);
	if ($result === false) {
		$result = array();
	}
	
	foreach ($result as $row) {
		if (!check_acl ($config["id_user"], $row["id_grupo"], "AR") == 1)
			continue;
		
		if ($loop >= NUM_PIECES_PIE) {
			if (!isset ($data[__('Other')]))
				$data[__('Other')] = 0;
			$data[__('Other')] += $row["count"];
		} 
		else {
			if ($row["id_agente"] == 0) {
				$name = __('SYSTEM')." (".$row["count"].")";
			}
			else {
				$name = mb_substr (agents_get_name ($row["id_agente"], "lower"), 0, 14)." (".$row["count"].")";
			}
			$data[$name] = $row["count"];
		}
		$loop++;
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
		
	return pie3d_graph($config['flash_charts'], $data, $width, $height,
		__('Other'), '', $water_mark,
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with events data in 320x200 size
 * 
 * @param string filter Filter for query in DB
 */
function grafico_eventos_total($filter = "") {
	global $config;
	global $graphic_type;
	
	$filter = str_replace  ( "\\" , "", $filter);
	$data = array ();
	$legend = array ();
	$total = 0;
	
	$sql = "SELECT COUNT(id_evento) FROM tevento WHERE criticity = 0 $filter";
	$data[__('Maintenance')] = db_get_sql ($sql);
	if ($data[__('Maintenance')] == 0) {
		unset($data[__('Maintenance')]);
	}
	
	$sql = "SELECT COUNT(id_evento) FROM tevento WHERE criticity = 1 $filter";
	$data[__('Informational')] = db_get_sql ($sql);
	if ($data[__('Informational')] == 0) {
		unset($data[__('Informational')]);
	}
	
	$sql = "SELECT COUNT(id_evento) FROM tevento WHERE criticity = 2 $filter";
	$data[__('Normal')] = db_get_sql ($sql);
	if ($data[__('Normal')] == 0) {
		unset($data[__('Normal')]);
	}
	
	$sql = "SELECT COUNT(id_evento) FROM tevento WHERE criticity = 3 $filter";
	$data[__('Warning')] = db_get_sql ($sql);
	if ($data[__('Warning')] == 0) {
		unset($data[__('Warning')]);
	}

	$sql = "SELECT COUNT(id_evento) FROM tevento WHERE criticity = 4 $filter";
	$data[__('Critical')] = db_get_sql ($sql);
	if ($data[__('Critical')] == 0) {
		unset($data[__('Critical')]);
	}
	
	asort ($data);
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return pie3d_graph($config['flash_charts'], $data, 320, 200,
		__('Other'), '', $water_mark,
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a pie graph with events data of users
 * 
 * @param integer height pie graph height
 * @param integer period time period
 */
function grafico_eventos_usuario ($width, $height) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	$max_items = 5;
	switch ($config["dbtype"]) {
		case "mysql":
		case "postgresql":
			$sql = sprintf ('SELECT COUNT(id_evento) events, id_usuario
				FROM tevento
				GROUP BY id_usuario
				ORDER BY 1 DESC LIMIT %d', $max_items);
			break;
		case "oracle":
			$sql = sprintf ('SELECT * FROM (SELECT COUNT(id_evento) events, id_usuario
				FROM tevento
				GROUP BY id_usuario
				ORDER BY 1 DESC) WHERE rownum <= %d', $max_items);
			break;
	}
	$events = db_get_all_rows_sql ($sql);
	
	if ($events === false) {
		$events = array();
	}
	
	foreach($events as $event) {
		if($event['id_usuario'] == '0') {
			$data[__('System')] = $event['events'];
		}
		else {
			$data[$event['id_usuario']] = $event['events'];
		}
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return pie3d_graph($config['flash_charts'], $data, $width, $height,
		__('Other'), '', $water_mark,
		$config['fontpath'], $config['font_size']);
}

/**
 * Print a custom SQL-defined graph 
 * 
 * @param integer ID of report content, used to get SQL code to get information for graph
 * @param integer height graph height
 * @param integer width graph width
 * @param integer Graph type 1 vbar, 2 hbar, 3 pie
 */
function graph_custom_sql_graph ($id, $width, $height, $type = 'sql_graph_vbar', $only_image = false, $homeurl = '', $ttl = 1) {
	global $config;
	
	$report_content = db_get_row ('treport_content', 'id_rc', $id);
	if ($report_content["external_source"] != ""){
		$sql = io_safe_output ($report_content["external_source"]);
	}
	else {
		$sql = db_get_row('treport_custom_sql', 'id', $report_content["treport_custom_sql_id"]);
		$sql = io_safe_output($sql['sql']);
	}
	
	$data_result = db_get_all_rows_sql ($sql);
	
	if ($data_result === false)
		$data_result = array ();
	
	$data = array ();
	
	$count = 0;
	foreach ($data_result as $data_item) {
		$count++;
		switch ($type) {
			case 'sql_graph_vbar': // vertical bar
				$data[$data_item["label"]]['g'] = $data_item["value"];
				break;
			case 'sql_graph_hbar': // horizontal bar
				$data[$data_item["label"]]['g'] = $data_item["value"];
				break;
			case 'sql_graph_pie': // Pie
				$data[$data_item["label"]] = $data_item["value"];
				break;
		}
	}
	
	$flash_charts = $config['flash_charts'];
	
	if ($only_image) {
		$flash_charts = false;
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	switch ($type) {
		case 'sql_graph_vbar': // vertical bar
			return vbar_graph($flash_charts, $data, $width, $height, array(),
				array(), "", "", $homeurl,
				$water_mark,
				$config['fontpath'], $config['font_size'], false, $ttl);
			break;
		case 'sql_graph_hbar': // horizontal bar
			return hbar_graph($flash_charts, $data, $width, $height, array(),
				array(), "", "", $homeurl,
				$water_mark,
				$config['fontpath'], $config['font_size'], false, $ttl);
			break;
		case 'sql_graph_pie': // Pie
			return pie3d_graph($flash_charts, $data, $width, $height, __("other"), $homeurl,
				$water_mark, $config['fontpath'], '', $ttl);
			break;
	}
}

/**
 * Print a static graph with event data of agents
 * 
 * @param integer id_agent Agent ID
 * @param integer width pie graph width
 * @param integer height pie graph height
 * @param integer period time period
 */
function graph_graphic_agentevents ($id_agent, $width, $height, $period = 0, $homeurl) {
	global $config;
	global $graphic_type;
	
	$data = array ();
	
	$resolution = $config['graph_res'] * ($period * 2 / $width); // Number of "slices" we want in graph
	
	$interval = (int) ($period / $resolution);
	$date = get_system_time ();
	$datelimit = $date - $period;
	$periodtime = floor ($period / $interval);
	$time = array ();
	$data = array ();
	$legend = array();
	$full_legend = array();
	
	$cont = 0;
	for ($i = 0; $i < $interval; $i++) {
		$bottom = $datelimit + ($periodtime * $i);
		if (! $graphic_type) {
			$name = date('H\h', $bottom);
		}
		else {
			$name = $bottom;
		}
		
		// Show less values in legend
		if ($cont == 0 or $cont % 2)
			$legend[$name] = $name;
		
		$full_legend[$name] = $name;;
		
		$top = $datelimit + ($periodtime * ($i + 1));
		$event = db_get_row_filter ('tevento', 
			array ('id_agente' => $id_agent,
				'utimestamp > '.$bottom,
				'utimestamp < '.$top), 'criticity, utimestamp');
		
		if (!empty($event['utimestamp'])){
			$data[$cont]['utimestamp'] = $periodtime;
			switch ($event['criticity']) {
				case 3:
					$data[$cont]['data'] = 2;
					break;
				case 4:
					$data[$cont]['data'] = 3;
					break;
				default:
					$data[$cont]['data'] = 1;
					break;
			}
		}
		else{
			$data[$cont]['utimestamp'] = $periodtime;
			$data[$cont]['data'] = 1;
		}
		$cont++;
	}
	
	$colors = 	array(1 => '#38B800', 2 => '#FFFF00', 3 => '#FF0000', 4 => '#C3C3C3');
	
	// Draw slicebar graph
	if ($config['flash_charts']) {
		echo flot_slicesbar_graph($data, $period, $width, $height, $full_legend, $colors, $config['fontpath'], $config['round_corner'], $homeurl);
	}
	else {
		echo slicesbar_graph($data, $period, $width, $height, $colors, $config['fontpath'], $config['round_corner'], $homeurl);
		
		// Draw legend
		echo "<br>";
		echo "&nbsp;";
		foreach ($legend as $hour) {
			echo "<span style='font-size: 6pt'>" . $hour . "</span>";
			echo "&nbsp;";
		}
	}
}

// Prints an error image
function fs_error_image () {
	global $config;
	
	return html_print_image("images/image_problem.png", true, array("border" => '0'));
}

function grafico_modulo_boolean_data ($agent_module_id, $period, $show_events,
	$unit_name, $show_alerts, $avg_only = 0, $date = 0, $series_suffix = '', 
	$series_suffix_str = '') {
	
	global $config;
	global $chart;
	global $color;
	global $legend;
	global $long_index;
	
	$chart = array();
	$color = array();
	$legend = array();
	$long_index = array();
	
	// Set variables
	if ($date == 0) $date = get_system_time();
	$datelimit = $date - $period;
	$resolution = $config['graph_res'] * 50; //Number of points of the graph
	$interval = (int) ($period / $resolution);
	$agent_name = modules_get_agentmodule_agent_name ($agent_module_id);
	$agent_id = agents_get_agent_id ($agent_name);
	$module_name = modules_get_agentmodule_name ($agent_module_id);
	$id_module_type = modules_get_agentmodule_type ($agent_module_id);
	$module_type = modules_get_moduletype_name ($id_module_type);
	$uncompressed_module = is_module_uncompressed ($module_type);
	if ($uncompressed_module) {
		$avg_only = 1;
	}
	
	// Get event data (contains alert data too)
	if ($show_events == 1 || $show_alerts == 1) {
		$events = db_get_all_rows_filter('tevento',
			array ('id_agentmodule' => $agent_module_id,
				"utimestamp > $datelimit",
				"utimestamp < $date",
				'order' => 'utimestamp ASC'),
			array ('evento', 'utimestamp', 'event_type'));
		if ($events === false) {
			$events = array ();
		}
	}
	
	// Get module data
	$data = db_get_all_rows_filter ('tagente_datos',
		array ('id_agente_modulo' => $agent_module_id,
			"utimestamp > $datelimit",
			"utimestamp < $date",
			'order' => 'utimestamp ASC'),
		array ('datos', 'utimestamp'));
	if ($data === false) {
		$data = array ();
	}
	
	// Uncompressed module data
	if ($uncompressed_module) {
		$min_necessary = 1;
	
	// Compressed module data
	}
	else {
		// Get previous data
		$previous_data = modules_get_previous_data ($agent_module_id, $datelimit);
		if ($previous_data !== false) {
			$previous_data['utimestamp'] = $datelimit;
			array_unshift ($data, $previous_data);
		}
		
		// Get next data
		$nextData = modules_get_next_data ($agent_module_id, $date);
		if ($nextData !== false) {
			array_push ($data, $nextData);
		}
		else if (count ($data) > 0) {
			// Propagate the last known data to the end of the interval
			$nextData = array_pop ($data);
			array_push ($data, $nextData);
			$nextData['utimestamp'] = $date;
			array_push ($data, $nextData);
		}
		
		$min_necessary = 2;
	}
	
	// Check available data
	if (count ($data) < $min_necessary) {
		if (!$graphic_type) {
			return fs_error_image ();
		}
		graphic_error ();
	}
	
	if (empty($unit_name)){
		$unit = modules_get_unit($agent_module_id);
	}
	else
		$unit = $unit_name;
	
	// Data iterator
	$j = 0;
	
	// Event iterator
	$k = 0;
	
	// Set initial conditions
	if ($data[0]['utimestamp'] == $datelimit) {
		$previous_data = $data[0]['datos'];
		$j++;
	}
	else {
		$previous_data = 0;
	}
	
	// Calculate chart data
	for ($i = 0; $i < $resolution; $i++) {
		$timestamp = $datelimit + ($interval * $i);
		
		$zero = 0;
		$total = 0;
		$count = 0;
		
		// Read data that falls in the current interval
		while (isset ($data[$j]) &&
			$data[$j]['utimestamp'] >= $timestamp &&
			$data[$j]['utimestamp'] <= ($timestamp + $interval)) {
			if ($data[$j]['datos'] == 0) {
				$zero = 1;
			}
			else {
				$total += $data[$j]['datos'];
				$count++;
			}
			
			$j++;
		}
		
		// Average
		if ($count > 0) {
			$total /= $count;
		}
		
		// Read events and alerts that fall in the current interval
		$event_value = 0;
		$alert_value = 0;
		while (isset ($events[$k]) &&
			$events[$k]['utimestamp'] >= $timestamp &&
			$events[$k]['utimestamp'] < ($timestamp + $interval)) {
			if ($show_events == 1) {
				$event_value++;
			}
			if ($show_alerts == 1 && substr ($events[$k]['event_type'], 0, 5) == 'alert') {
				$alert_value++;
			}
			$k++;
		}
		
		// Set the title and time format
		if ($period <= SECONDS_6HOURS) {
			$time_format = 'H:i:s';
		}
		elseif ($period < SECONDS_1DAY) {
			$time_format = 'H:i';
		}
		elseif ($period < SECONDS_15DAYS) {
			$time_format = 'M d H:i';
		}
		elseif ($period < SECONDS_1MONTH) {
			$time_format = 'M d H\h';
		} 
		else {
			$time_format = 'M d H\h';
		}
		
		$timestamp_short = date($time_format, $timestamp);
		$long_index[$timestamp_short] = date(
			html_entity_decode($config['date_format'], ENT_QUOTES, "UTF-8"), $timestamp);
		$timestamp = $timestamp_short;
		/////////////////////////////////////////////////////////////////
		
		// Data and zeroes (draw a step)
		if ($zero == 1 && $count > 0) {
			if ($avg_only) {
				$chart[$timestamp]['sum'.$series_suffix] = $total;
			}
			else {
				$chart[$timestamp]['sum'.$series_suffix] = $total;
				$chart[$timestamp + 1] = array ('sum' => 0,
					//'count' => 0,
					//'timestamp_bottom' => $timestamp,
					//'timestamp_top' => $timestamp + $interval,
					'min' => 0,
					'max' => 0,
					'event' => $event_value,
					'alert' => $alert_value);
			}
			$previous_data = 0;
		}
		else if ($zero == 1) { // Just zeros
			$chart[$timestamp]['sum'.$series_suffix] = 0;
			$previous_data = 0;
		}
		else if ($count > 0) { // No zeros
			$chart[$timestamp]['sum'.$series_suffix] = $total;
			$previous_data = $total;
		}
		else { // Compressed data
			if ($uncompressed_module || ($timestamp > time ())) {
				$chart[$timestamp]['sum'.$series_suffix] = 0;
			}
			else {
				$chart[$timestamp]['sum'.$series_suffix] = $previous_data;
			}
		}
		
		if (!$avg_only) {
			$chart[$timestamp]['min'.$series_suffix] = 0;
			$chart[$timestamp]['max'.$series_suffix] = 0;
		}
		if($show_events) {
			$chart[$timestamp]['event'.$series_suffix] = $event_value;
		}
		else {
			unset($chart[$timestamp]['event'.$series_suffix]);
		}
		if ($show_alerts) {
			$chart[$timestamp]['alert'.$series_suffix] = $alert_value;
		}
		else {
			unset($chart[$timestamp]['alert'.$series_suffix]);
		}
	}
	
	// Get min, max and avg (less efficient but centralized for all modules and reports)
	$min_value = round(reporting_get_agentmodule_data_min ($agent_module_id, $period, $date), 2);
	$max_value = round(reporting_get_agentmodule_data_max ($agent_module_id, $period, $date), 2);
	$avg_value = round(reporting_get_agentmodule_data_average ($agent_module_id, $period, $date), 2);
	
	// Fix event and alert scale
	$event_max = $max_value * 1.25;
	foreach ($chart as $timestamp => $chart_data) {
		if ($show_events) {
			if ($chart_data['event'] > 0) {
				$chart[$timestamp]['event'.$series_suffix] = $event_max;
			}
		}
		if ($show_alerts) {
			if ($chart_data['alert'] > 0) {
				$chart[$timestamp]['alert'.$series_suffix] = $event_max;
			}
		}
	}
	///////////////////////////////////////////////////
	// Set the title and time format
	if ($period <= SECONDS_6HOURS) {
		$time_format = 'H:i:s';
	}
	elseif ($period < SECONDS_1DAY) {
		$time_format = 'H:i';
	}
	elseif ($period < SECONDS_15DAYS) {
		$time_format = 'M d H:i';
	}
	elseif ($period < SECONDS_1MONTH) {
		$time_format = 'M d H\h';
	} 
	else {
		$time_format = 'M d H\h';
	}
	
	// Flash chart
	$caption = __('Max. Value').$series_suffix_str . ': ' . $max_value . '    ' . __('Avg. Value').$series_suffix_str . 
	': ' . $avg_value . '    ' . __('Min. Value').$series_suffix_str . ': ' . $min_value . '   ' . __('Units').$series_suffix_str . ': ' . $unit;
	
	/////////////////////////////////////////////////////////////////////////////////////////
	$legend['sum'.$series_suffix] = __('Avg').$series_suffix_str . ' (' . $avg_value . ') ' . $unit;
	if($show_events) {
		$legend['event'.$series_suffix] = __('Events').$series_suffix_str;
	}
	if($show_alerts) {
		$legend['alert'.$series_suffix] = __('Alerts').$series_suffix_str;
	}
	if (!$avg_only) {
		$legend['max'.$series_suffix] = __('Max').$series_suffix_str . ' (' .format_for_graph($max_value) . ') ' . $unit;
		$legend['min'.$series_suffix] = __('Min').$series_suffix_str . ' (' . format_for_graph($min_value) . ') ' . $unit;
	}
	//$legend['baseline'.$series_suffix] = __('Baseline').$series_suffix_str;
	/////////////////////////////////////////////////////////////////////////////////////////
	$color['sum'.$series_suffix] = array('border' => '#000000', 'color' => $config['graph_color2'], 'alpha' => 50);
	if($show_events) {
		$color['event'.$series_suffix] = array('border' => '#ff7f00', 'color' => '#ff7f00', 'alpha' => 50);
	}
	if($show_alerts) {
		$color['alert'.$series_suffix] = array('border' => '#ff0000', 'color' => '#ff0000', 'alpha' => 50);
	}
	$color['max'.$series_suffix] = array('border' => '#000000', 'color' => $config['graph_color3'], 'alpha' => 50);
	$color['min'.$series_suffix] = array('border' => '#000000', 'color' => $config['graph_color1'], 'alpha' => 50);
	//$color['baseline'.$series_suffix] = array('border' => null, 'color' => '#0097BD', 'alpha' => 10);
	
}

function grafico_modulo_boolean ($agent_module_id, $period, $show_events,
	$width, $height , $title, $unit_name, $show_alerts, $avg_only = 0, $pure=0,
	$date = 0, $only_image = false, $homeurl = '', $adapt_key = '', $compare = false) {
	
	global $config;
	global $graphic_type;
	
	$flash_chart = $config['flash_charts'];
	
	global $chart;
	global $color;
	global $legend;
	global $long_index;
	
	if ($compare !== false) {
		$series_suffix = '2';
		$series_suffix_str = ' ('.__('Previous').')';
		// Build the data of the previous period
		grafico_modulo_boolean_data ($agent_module_id, $period, $show_events,
		$unit_name, $show_alerts, $avg_only, $date-$period, $series_suffix, $series_suffix_str);
				
		switch($compare) {
			case 'separated':
				// Store the chart calculated
				$chart_prev = $chart;
				$legend_prev = $legend;
				$long_index_prev = $long_index;
				break;
			case 'overlapped':
				// Store the chart calculated deleting index, because will be over the current period
				$chart_prev = array_values($chart);
				$legend_prev = $legend;
				break;
		}
	}
	
	grafico_modulo_boolean_data ($agent_module_id, $period, $show_events,
	$unit_name, $show_alerts, $avg_only, $date);
	
	if ($compare === 'overlapped') {
		$i = 0;
		foreach($chart as $k=>$v) {
			$chart[$k] = array_merge($v,$chart_prev[$i]);
			$i++;
		}
		
		$legend = array_merge($legend, $legend_prev);
	}
	
	if ($only_image) {
		$flash_chart = false;
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	if ($compare === 'separated') {
		return area_graph($flash_chart, $chart, $width, $height/2, $color, $legend,
			 $long_index, ui_get_full_url("images/image_problem.opaque.png"), "", $unit, $homeurl,
			 $water_mark,
			 $config['fontpath'], $config['font_size'], $unit, 1, array(), 
			 array(), 0, 0, $adapt_key).
			 '<br>'.
			 area_graph($flash_chart, $chart_prev, $width, $height/2, $color, $legend_prev,
			 $long_index_prev, ui_get_full_url("images/image_problem.opaque.png"), "", $unit, $homeurl,
			 $water_mark,
			 $config['fontpath'], $config['font_size'], $unit, 1, array(), 
			 array(), 0, 0, $adapt_key);
	}
	else {
		return area_graph($flash_chart, $chart, $width, $height, $color, $legend,
			 $long_index, ui_get_full_url("images/image_problem.opaque.png"), "", $unit, $homeurl,
			 $water_mark,
			 $config['fontpath'], $config['font_size'], $unit, 1, array(), 
			 array(), 0, 0, $adapt_key);
	}
}


/**
 * Print an area graph with netflow aggregated
 */

function graph_netflow_aggregate_area ($data, $period, $width, $height, $only_image) {
	global $config;
	global $graphic_type;
	
	if (empty ($data)) {
		echo fs_error_image ();
		return;
	}
	
	if ($period <= SECONDS_6HOURS) {
		$chart_time_format = 'H:i:s';
	}
	elseif ($period < SECONDS_1DAY) {
		$chart_time_format = 'H:i';
	}
	elseif ($period < SECONDS_15DAYS) {
		$chart_time_format = 'M d H:i';
	}
	elseif ($period < SECONDS_1MONTH) {
		$chart_time_format = 'M d H\h';
	}
	else { 
		$chart_time_format = 'M d H\h';
	}
	
	// Calculate source indexes
	$i = 0;
	$sources = array ();
	foreach ($data['sources'] as $source => $value) {
		$source_indexes[$source] = $i;
		$sources[$i] = $source;
		$i++;
	}
	
	// Add sources to chart
	$chart = array ();
	foreach ($data['data'] as $timestamp => $data) {
		$chart_date = date ($chart_time_format, $timestamp);
		$chart[$chart_date] = array ();
		foreach ($source_indexes as $source => $index) {
			$chart[$chart_date][$index] = 0;
		}
		foreach ($data as $source => $value) {
			$chart[$chart_date][$source_indexes[$source]] = $value;
		}
	}
	
	$flash_chart = $config['flash_charts'];
	if ($only_image) {
		$flash_chart = false;
	}
	
	if ($config['homeurl'] != '') {
		$homeurl = $config['homeurl'] . '/';
	}
	else {
		$homeurl = '';
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return stacked_area_graph($flash_chart, $chart, $width, $height, null, $sources,
		null, ui_get_full_url("images/image_problem.opaque.png"), "", "",
		$water_mark,
		$config['fontpath'], $config['font_size'], "");
}



/**
 * Print an area graph with netflow total
 */
function graph_netflow_total_area ($data, $period, $width, $height, $only_image) {
	global $config;
	global $graphic_type;
	
	if (empty ($data)) {
		echo fs_error_image ();
		return;
	}
	
	if ($period <= SECONDS_6HOURS) {
		$chart_time_format = 'H:i:s';
	}
	elseif ($period < SECONDS_1DAY) {
		$chart_time_format = 'H:i';
	}
	elseif ($period < SECONDS_15DAYS) {
		$chart_time_format = 'M d H:i';
	}
	elseif ($period < SECONDS_1MONTH) {
		$chart_time_format = 'M d H\h';
	}
	else { 
		$chart_time_format = 'M d H\h';
	}
	
	// Populate chart
	$chart = array ();
	foreach ($data as $timestamp => $value) {
		$chart[date ($chart_time_format, $timestamp)] = $value;
	}
	
	$flash_chart = $config['flash_charts'];
	if ($only_image) {
		$flash_chart = false;
	}
	
	if ($config['homeurl'] != '') {
		$homeurl = $config['homeurl'] . '/';
	}
	else {
		$homeurl = '';
	}
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return area_graph($flash_chart, $chart, $width, $height, array (), array (),
		array (), ui_get_full_url("images/image_problem.opaque.png"), "", "", $homeurl,
		$water_mark,
		$config['fontpath'], $config['font_size'], "");
}

/**
 * Print a pie graph with netflow aggregated
 */
function graph_netflow_aggregate_pie ($data, $aggregate) {
	global $config;
	global $graphic_type;
	
	if (empty ($data)) {
		echo fs_error_image ();
		return;
	}
	
	$i = 0;
	$values = array();
	$agg = '';
	while (isset ($data[$i])) {
		$agg = $data[$i]['agg'];
		if (!isset($values[$agg])) {
			$values[$agg] = $data[$i]['data'];
		}
		else {
			$values[$agg] += $data[$i]['data'];
		}
		$i++;
	}
	
	return pie3d_graph($config['flash_charts'], $values, 320, 200,
		__('Other'), '', $config['homedir'] .  "/images/logo_vertical_water.png",
		$config['fontpath'], $config['font_size']);
}


/**
 * Draw a graph of Module string data of agent
 * 
 * @param integer id_agent_modulo Agent Module ID
 * @param integer show_event show event (1 or 0)
 * @param integer height graph height
 * @param integer width graph width
 * @param string title graph title
 * @param string unit_name String of unit name
 * @param integer show alerts (1 or 0)
 * @param integer avg_only calcules avg only (1 or 0)
 * @param integer pure Fullscreen (1 or 0)
 * @param integer date date
 */
function grafico_modulo_string ($agent_module_id, $period, $show_events,
	 $width, $height , $title, $unit_name, $show_alerts, $avg_only = 0, $pure=0,
	 $date = 0, $only_image = false, $homeurl = '', $adapt_key) {
	global $config;
	global $graphic_type;
	
	// Set variables
	if ($date == 0)
		$date = get_system_time();
	$datelimit = $date - $period;
	$resolution = $config['graph_res'] * 50; //Number of points of the graph
	$interval = (int) ($period / $resolution);
	$agent_name = modules_get_agentmodule_agent_name ($agent_module_id);
	$agent_id = agents_get_agent_id ($agent_name);
	$module_name = modules_get_agentmodule_name ($agent_module_id);
	$id_module_type = modules_get_agentmodule_type ($agent_module_id);
	$module_type = modules_get_moduletype_name ($id_module_type);
	$uncompressed_module = is_module_uncompressed ($module_type);
	if ($uncompressed_module) {
		$avg_only = 1;
	}
	
	// Get event data (contains alert data too)
	if ($show_events == 1 || $show_alerts == 1) {
		$events = db_get_all_rows_filter ('tevento',
			array ('id_agentmodule' => $agent_module_id,
				"utimestamp > $datelimit",
				"utimestamp < $date",
				'order' => 'utimestamp ASC'),
			array ('evento', 'utimestamp', 'event_type'));
		if ($events === false) {
			$events = array ();
		}
	}
	
	// Get module data
	$data = db_get_all_rows_filter ('tagente_datos_string',
		array ('id_agente_modulo' => $agent_module_id,
			"utimestamp > $datelimit",
			"utimestamp < $date",
			'order' => 'utimestamp ASC'),
		array ('datos', 'utimestamp'));
	if ($data === false) {
		$data = array ();
	}
	
	// Uncompressed module data
	if ($uncompressed_module) {
		$min_necessary = 1;
	}
	else {
		// Compressed module data
		
		// Get previous data
		$previous_data = modules_get_previous_data ($agent_module_id, $datelimit, 1);
		if ($previous_data !== false) {
			$previous_data['utimestamp'] = $datelimit;
			array_unshift ($data, $previous_data);
		}
		
		// Get next data
		$nextData = modules_get_next_data ($agent_module_id, $date, 1);
		if ($nextData !== false) {
			array_push ($data, $nextData);
		}
		else if (count ($data) > 0) {
			// Propagate the last known data to the end of the interval
			$nextData = array_pop ($data);
			array_push ($data, $nextData);
			$nextData['utimestamp'] = $date;
			array_push ($data, $nextData);
		}
		
		$min_necessary = 2;
	}
	
	// Check available data
	if (count ($data) < $min_necessary) {
		if (!$graphic_type) {
			return fs_error_image ();
		}
		graphic_error ();
	}
	
	// Data iterator
	$j = 0;
	
	// Event iterator
	$k = 0;
	
	// Set initial conditions
	$chart = array();
	if ($data[0]['utimestamp'] == $datelimit) {
		$previous_data = 1;
		$j++;
	}
	else {
		$previous_data = 0;
	}
	
	// Calculate chart data
	for ($i = 0; $i < $resolution; $i++) {
		$timestamp = $datelimit + ($interval * $i);
		
		$count = 0;	
		$total = 0;	
		// Read data that falls in the current interval
		while (isset ($data[$j]) !== null && $data[$j]['utimestamp'] >= $timestamp && $data[$j]['utimestamp'] <= ($timestamp + $interval)) {
			$count++;
			$j++;
		}
		
		// Read events and alerts that fall in the current interval
		$event_value = 0;
		$alert_value = 0;
		while (isset ($events[$k]) && $events[$k]['utimestamp'] >= $timestamp && $events[$k]['utimestamp'] <= ($timestamp + $interval)) {
			if ($show_events == 1) {
				$event_value++;
			}
			if ($show_alerts == 1 && substr ($events[$k]['event_type'], 0, 5) == 'alert') {
				$alert_value++;
			}
			$k++;
		}
		
		/////////////////////////////////////////////////////////////////
		// Set the title and time format
		if ($period <= SECONDS_6HOURS) {
			$time_format = 'H:i:s';
		}
		elseif ($period < SECONDS_1DAY) {
			$time_format = 'H:i';
		}
		elseif ($period < SECONDS_15DAYS) {
			$time_format = 'M d H:i';
		}
		elseif ($period < SECONDS_1MONTH) {
			$time_format = 'M d H\h';
		}
		else { 
			$time_format = 'M d H\h';
		}
		
		$timestamp_short = date($time_format, $timestamp);
		$long_index[$timestamp_short] = date(
			html_entity_decode($config['date_format'], ENT_QUOTES, "UTF-8"), $timestamp);
		$timestamp = $timestamp_short;
		/////////////////////////////////////////////////////////////////
		
		// Data in the interval
		if ($count > 0) {
			$chart[$timestamp]['sum'] = $count;
			$previous_data = $total;
		}
		else {
			// Compressed data
			$chart[$timestamp]['sum'] = $previous_data;
		}
		
		$chart[$timestamp]['min'] = 0;
		$chart[$timestamp]['max'] = 0;
		$chart[$timestamp]['event'] = $event_value;
		$chart[$timestamp]['alert'] = $alert_value;
	}
	
	// Get min, max and avg (less efficient but centralized for all modules and reports)
	$min_value = round(reporting_get_agentmodule_data_min ($agent_module_id, $period, $date), 2);
	$max_value = round(reporting_get_agentmodule_data_max ($agent_module_id, $period, $date), 2);
	$avg_value = round(reporting_get_agentmodule_data_average ($agent_module_id, $period, $date), 2);
	$unit = modules_get_unit($agent_module_id);
	
	// Fix event and alert scale
	$event_max = $max_value * 1.25;
	foreach ($chart as $timestamp => $chart_data) {
		if ($chart_data['event'] > 0) {
			$chart[$timestamp]['event'] = $event_max;
		}
		if ($chart_data['alert'] > 0) {
			$chart[$timestamp]['alert'] = $event_max;
		}
	}
	
	if (empty($unit_name)) {
		$unit = modules_get_unit($agent_module_id);
	}
	else
		$unit = $unit_name;
	
	/////////////////////////////////////////////////////////////////////////////////////////
	$color = array();
	$color['sum'] = array('border' => '#000000', 'color' => $config['graph_color2'], 'alpha' => 50);
	$color['event'] = array('border' => '#ff7f00', 'color' => '#ff7f00', 'alpha' => 50);
	$color['alert'] = array('border' => '#ff0000', 'color' => '#ff0000', 'alpha' => 50);
	$color['max'] = array('border' => '#000000', 'color' => $config['graph_color3'], 'alpha' => 50);
	$color['min'] = array('border' => '#000000', 'color' => $config['graph_color1'], 'alpha' => 50);
	//$color['baseline'] = array('border' => null, 'color' => '#0097BD', 'alpha' => 10);
	/////////////////////////////////////////////////////////////////////////////////////////
	
	$flash_chart = $config['flash_charts'];
	if ($only_image) {
		$flash_chart = false;
	}
	
	$legend = null;
	
	$water_mark = array('file' => $config['homedir'] .  "/images/logo_vertical_water.png",
		'url' => ui_get_full_url("/images/logo_vertical_water.png"));
	
	return area_graph($flash_chart, $chart, $width, $height, $color,
		$legend, array(), '', "", $unit, $homeurl,
		$water_mark,
		$config['fontpath'], $config['font_size'], $unit, 1, array(), array(), 0, 0, $adapt_key, true);
}

/**
 * Print a graph with event data of module
 * 
 * @param integer id_module Module ID
 * @param integer width graph width
 * @param integer height graph height
 * @param integer period time period
 * @param string homeurl Home url if the complete path is needed
 * @param int Zoom factor over the graph
 * @param string adaptation width and margin left key (could be adapter_[something] or adapted_[something])
 */
function graphic_module_events ($id_module, $width, $height, $period = 0, $homeurl = '', $zoom = 0, $adapt_key = '') {
	global $config;
	global $graphic_type;
	
	$data = array ();
	
	$resolution = $config['graph_res'] * ($period * 2 / $width); // Number of "slices" we want in graph
	
	$interval = (int) ($period / $resolution);
	$date = get_system_time ();
	$datelimit = $date - $period;
	$periodtime = floor ($period / $interval);
	$time = array ();
	$data = array ();
	
	// Set the title and time format
	if ($period <= SECONDS_6HOURS) {
		$time_format = 'H:i:s';
	}
	elseif ($period < SECONDS_1DAY) {
		$time_format = 'H:i';
	}
	elseif ($period < SECONDS_15DAYS) {
		$time_format = 'M d H:i';
	}
	elseif ($period < SECONDS_1MONTH) {
		$time_format = 'M d H\h';
	}
	else { 
		$time_format = 'M d H\h';
	}
	
	$legend = array();
	for ($i = 0; $i < $interval; $i++) {
		$bottom = $datelimit + ($periodtime * $i);
		if (! $graphic_type) {
			$name = date($time_format, $bottom);
			//$name = date('H\h', $bottom);
		}
		else {
			$name = $bottom;
		}
		
		$top = $datelimit + ($periodtime * ($i + 1));
		
		
		$event = db_get_row_filter ('tevento', 
		array ('id_agentmodule' => $id_module,
			'utimestamp > '.$bottom,
			'utimestamp < '.$top), 'criticity, utimestamp');			
		
		if (!empty($event['utimestamp'])){
			$data[$cont]['utimestamp'] = $periodtime;
			switch ($event['criticity']) {
				case 3:
					$data[$cont]['data'] = 2;
					break;
				case 4:
					$data[$cont]['data'] = 3;
					break;
				default:
					$data[$cont]['data'] = 1;
					break;
			}
			$current_timestamp = $event['utimestamp'];
		}
		else{
			$data[$cont]['utimestamp'] = $periodtime;			
			$data[$cont]['data'] = 1;
			$current_timestamp = $bottom;
		}
		$legend[] = date($time_format, $current_timestamp);	
		$cont++;
	}
	
	$pixels_between_xdata = 25;
	$max_xdata_display = round($width / $pixels_between_xdata);
	$ndata = count($data);
	if($max_xdata_display > $ndata) {
		$xdata_display = $ndata;
	}
	else {
		$xdata_display = $max_xdata_display;
	}
	
	$step = round($ndata/$xdata_display);	
	
	$colors = 	array(1 => '#38B800', 2 => '#FFFF00', 3 => '#FF0000', 4 => '#C3C3C3');
	
	// Draw slicebar graph
	if($config['flash_charts']) {
		echo flot_slicesbar_graph($data, $period, $width, 15, $legend, $colors, $config['fontpath'], $config['round_corner'], $homeurl, '', $adapt_key);
	}
	else {
		echo slicesbar_graph($data, $period, $width, 15, $colors, $config['fontpath'], $config['round_corner'], $homeurl);
	}
}

///Functions for the LOG4X graphs
function grafico_modulo_log4x ($id_agente_modulo, $periodo, $show_event,
	 $width, $height , $title, $unit_name, $show_alert, $avg_only = 0, $pure=0,
	 $date = 0) {
	
	grafico_modulo_log4x_trace("<pre style='text-align:left;'>");
	
	if ($date == "")
		$now = time ();
	else
		$now = $date;
	
	$fechatope = $now - $periodo; // limit date
	
	$nombre_agente = modules_get_agentmodule_agent_name ($id_agente_modulo);
	$nombre_modulo = modules_get_agentmodule_name ($id_agente_modulo);
	$id_agente = agents_get_agent_id ($nombre_agente);
	
	$adjust_time = SECONDS_1MINUTE;
	
	if ($periodo == SECONDS_1DAY)
		$adjust_time = SECONDS_1HOUR;
	elseif ($periodo == SECONDS_1WEEK)
		$adjust_time = SECONDS_1DAY;
	elseif ($periodo == SECONDS_1HOUR)
		$adjust_time = SECONDS_10MINUTES;
	elseif ($periodo == SECONDS_1MONTH)
		$adjust_time = SECONDS_1WEEK;
	else
		$adjust_time = $periodo / 12.0;
	
	$num_slices = $periodo / $adjust_time;
	
	$fechatope_index = grafico_modulo_log4x_index($fechatope, $adjust_time);
	
	$sql1="SELECT utimestamp, SEVERITY " .
			" FROM tagente_datos_log4x " .
			" WHERE id_agente_modulo = $id_agente_modulo AND utimestamp > $fechatope and utimestamp < $now";
	
	$valores = array();
	
	$max_count = -1;
	$min_count = 9999999;
	
	grafico_modulo_log4x_trace("$sql1");
	
	$rows = 0;
	
	$first = true;
	while ($row = get_db_all_row_by_steps_sql($first, $result, $sql1)){
		$first = false;
		
		$rows++;
		$utimestamp = $row[0];
		$severity = $row[1];
		$severity_num = $row[2];
		
		if (!isset($valores[$severity]))
			$valores[$severity] = array();
		
		$dest = grafico_modulo_log4x_index($utimestamp, $adjust_time);
		
		$index = (($dest - $fechatope_index) / $adjust_time) - 1;
		
		if (!isset($valores[$severity][$index])) {
			$valores[$severity][$index] = array();
			$valores[$severity][$index]['pivot'] = $dest;
			$valores[$severity][$index]['count'] = 0;
			$valores[$severity][$index]['alerts'] = 0;
		}
		
		$valores[$severity][$index]['count']++;
		
		$max_count = max($max_count, $valores[$severity][$index]['count']);
		$min_count = min($min_count, $valores[$severity][$index]['count']);
	}
	
	grafico_modulo_log4x_trace("$rows rows");
	
	// Create graph
	// *************
	
	grafico_modulo_log4x_trace(__LINE__);
	
	//set_error_handler("myErrorHandler");
	
	grafico_modulo_log4x_trace(__LINE__);
	set_include_path(get_include_path() . PATH_SEPARATOR . getcwd() . "/../../include");
	
	require_once 'Image/Graph.php';
	
	grafico_modulo_log4x_trace(__LINE__);
	
	$Graph =& Image_Graph::factory('graph', array($width, $height));
	
	grafico_modulo_log4x_trace(__LINE__);
	
	// add a TrueType font
	$Font =& $Graph->addNew('font', $config['fontpath']); // C:\WINNT\Fonts\ARIAL.TTF
	$Font->setSize(7);
	
	$Graph->setFont($Font);
	
	if ($periodo == SECONDS_1DAY)
		$title_period = $lang_label["last_day"];
	elseif ($periodo == SECONDS_1WEEK)
		$title_period = $lang_label["last_week"];
	elseif ($periodo == SECONDS_1HOUR)
		$title_period = $lang_label["last_hour"];
	elseif ($periodo == SECONDS_1MONTH)
		$title_period = $lang_label["last_month"];
	else {
		$suffix = $lang_label["days"];
		$graph_extension = $periodo / SECONDS_1DAY;
		
		if ($graph_extension < 1) {
			$graph_extension = $periodo / SECONDS_1HOUR;
			$suffix = $lang_label["hours"];
		}
		//$title_period = "Last ";
		$title_period = format_numeric($graph_extension,2)." $suffix";
	}
	
	$title_period = html_entity_decode($title_period);
	
	grafico_modulo_log4x_trace(__LINE__);
	
	if ($pure == 0){
		$Graph->add(
			Image_Graph::horizontal(
				Image_Graph::vertical(
					Image_Graph::vertical(
						$Title = Image_Graph::factory('title', array('   Pandora FMS Graph - '.strtoupper($nombre_agente)." - " .$title_period, 10)),
						$Subtitle = Image_Graph::factory('title', array('     '.$title, 7)),
						90
					),
					$Plotarea = Image_Graph::factory('plotarea', array('Image_Graph_Axis', 'Image_Graph_Axis')),
					15 // If you change this, change the 0.85 below
				),
				Image_Graph::vertical(
					$Legend = Image_Graph::factory('legend'),
					$PlotareaMinMax = Image_Graph::factory('plotarea'),
					65
				),
				85 // If you change this, change the 0.85 below
			)
		);
		
		$Legend->setPlotarea($Plotarea);
		$Title->setAlignment(IMAGE_GRAPH_ALIGN_LEFT);
		$Subtitle->setAlignment(IMAGE_GRAPH_ALIGN_LEFT);
	}
	else { // Pure, without title and legends
		$Graph->add($Plotarea = Image_Graph::factory('plotarea', array('Image_Graph_Axis', 'Image_Graph_Axis')));
	}
	
	grafico_modulo_log4x_trace(__LINE__);
	
	$dataset = array();
	
	$severities = array("FATAL", "ERROR", "WARN", "INFO", "DEBUG", "TRACE");
	$colors = array("black", "red", "orange", "yellow", "#3300ff", 'magenta');
	
	$max_bubble_radius = $height * 0.6 / (count($severities) + 1); // this is the size for the max_count
	$y = count($severities) - 1;
	$i = 0;
	
	foreach($severities as $severity) {
		$dataset[$i] = Image_Graph::factory('dataset');
		$dataset[$i]->setName($severity);
		
		if (isset($valores[$severity])){
			$data =& $valores[$severity];
			while (list($index, $data2) = each($data)) {
				$count = $data2['count'];
				$pivot = $data2['pivot'];
				
				//$x = $scale * $index;
				$x = 100.0 * ($pivot - $fechatope) / ($now - $fechatope);
				if ($x > 100) $x = 100;
				
				$size = grafico_modulo_log4x_bubble_size($count, $max_count, $max_bubble_radius);
				
				// pivot is the value in the X axis
				// y is the number of steps (from the bottom of the graphics) (zero based)
				// x is the position of the bubble, in % from the left (0% = full left, 100% = full right)
				// size is the radius of the bubble
				// value is the value associated with the bubble (needed to calculate the leyend)
				//
				$dataset[$i]->addPoint($pivot, $y, array("x" => $x, "size" => $size, "value" => $count));
			}
		}
		else {
			// There's a problem when we have no data ...
			// This was the first try.. didnt work
			//$dataset[$i]->addPoint($now, -1, array("x" => 0, "size" => 0));
		}
		
		$y--;
		$i++;
	}
	
	grafico_modulo_log4x_trace(__LINE__);
	
	// create the 1st plot as smoothed area chart using the 1st dataset
	$Plot =& $Plotarea->addNew('bubble', array(&$dataset));
	$Plot->setFont($Font);
	
	$AxisX =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_X);
	$AxisX->setDataPreprocessor(Image_Graph::factory('Image_Graph_DataPreprocessor_Function', 'grafico_modulo_log4x_format_x_axis'));
	$AxisX->forceMinimum($fechatope);
	$AxisX->forceMaximum($now);
	
	$minIntervalWidth = $Plot->getTextWidth("88/88/8888");
	$interval_x = $adjust_time;
	
	while (true) {
		$intervalWidth = $width * 0.85 * $interval_x/ $periodo;
		if ($intervalWidth >= $minIntervalWidth)
			break;
		
		$interval_x *= 2;
	}
	
	$AxisX->setLabelInterval($interval_x);
	$AxisX->setLabelOption("showtext",true);
	
	//*
	$GridY2 =& $Plotarea->addNew('line_grid');
	$GridY2->setLineColor('gray');
	$GridY2->setFillColor('lightgray@0.05');
	$GridY2->_setPrimaryAxis($AxisX);
	//$GridY2->setLineStyle(Image_Graph::factory('Image_Graph_Line_Dotted', array("white", "gray", "gray", "gray")));
	$GridY2->setLineStyle(Image_Graph::factory('Image_Graph_Line_Formatted', array(array("transparent", "transparent", "transparent", "gray"))));
	//*/
	//grafico_modulo_log4x_trace(print_r($AxisX, true));
	
	$AxisY =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_Y);
	$AxisY->setDataPreprocessor(Image_Graph::factory('Image_Graph_DataPreprocessor_Function', 'grafico_modulo_log4x_format_y_axis'));
	$AxisY->setLabelOption("showtext",true);
	//$AxisY->setLabelInterval(0);
	//$AxisY->showLabel(IMAGE_GRAPH_LABEL_ZERO);
	
	//*
	$GridY2 =& $Plotarea->addNew('line_grid');
	$GridY2->setLineColor('gray');
	$GridY2->setFillColor('lightgray@0.05');
	$GridY2->_setPrimaryAxis($AxisY);
	$GridY2->setLineStyle(Image_Graph::factory('Image_Graph_Line_Formatted', array(array("transparent", "transparent", "transparent", "gray"))));
	//*/
	
	$AxisY->forceMinimum(0);
	$AxisY->forceMaximum(count($severities) + 1) ;
	
	// set line colors
	$FillArray =& Image_Graph::factory('Image_Graph_Fill_Array');
	
	$Plot->setFillStyle($FillArray);
	foreach($colors as $color)
		$FillArray->addColor($color);
	
	grafico_modulo_log4x_trace(__LINE__);
	
	$FillArray->addColor('green@0.6');
	//$AxisY_Weather =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_Y);
	
	// Show events !
	if ($show_event == 1){
		$Plot =& $Plotarea->addNew('Plot_Impulse', array($dataset_event));
		$Plot->setLineColor( 'red' );
		$Marker_event =& Image_Graph::factory('Image_Graph_Marker_Cross');
		$Plot->setMarker($Marker_event);
		$Marker_event->setFillColor( 'red' );
		$Marker_event->setLineColor( 'red' );
		$Marker_event->setSize ( 5 );
	}
	
	$Axis =& $PlotareaMinMax->getAxis(IMAGE_GRAPH_AXIS_X);
	$Axis->Hide();
	$Axis =& $PlotareaMinMax->getAxis(IMAGE_GRAPH_AXIS_Y);
	$Axis->Hide();
	
	$plotMinMax =& $PlotareaMinMax->addNew('bubble', array(&$dataset, true));
	
	grafico_modulo_log4x_trace(__LINE__);
	
	$Graph->done();
	
	grafico_modulo_log4x_trace(__LINE__);
}

function grafico_modulo_log4x_index($x, $interval)
{
	return $x + $interval - (($x - 1) % $interval) - 1;
}

function grafico_modulo_log4x_trace($str)
{
	//echo "$str\n";
}

function grafico_modulo_log4x_bubble_size($count, $max_count, $max_bubble_radius)
{
	//Superformula de ROA
	$r0 = 1.5;
	$r1 = $max_bubble_radius;
	$v2 = pow($max_count,1/2.0);
	
	return $r1*pow($count,1/2.0)/($v2)+$r0;
}

function grafico_modulo_log4x_format_x_axis ( $number , $decimals=2, $dec_point=".", $thousands_sep=",")
{
	// $number is the unix time in the local timezone
	
	//$dtZone = new DateTimeZone(date_default_timezone_get());
	//$d = new DateTime("now", $dtZone);
	//$offset = $dtZone->getOffset($d);
	//$number -= $offset;
	
	return date("d/m", $number) . "\n" . date("H:i", $number);
}

function grafico_modulo_log4x_format_y_axis ( $number , $decimals=2, $dec_point=".", $thousands_sep=",")
{
	switch($number) {
		case 6:
			return "FATAL";
			break;
		case 5:
			return "ERROR";
			break;
		case 4:
			return "WARN";
			break;
		case 3:
			return "INFO";
			break;
		case 2:
			return "DEBUG";
			break;
		case 1:
			return "TRACE";
			break;
		default:
			return "";
	}
}
?>