<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2026 The Cacti Group                                 |
 |                                                                         |
 | This program is free software; you can redistribute it and/or           |
 | modify it under the terms of the GNU General Public License             |
 | as published by the Free Software Foundation; either version 2          |
 | of the License, or (at your option) any later version.                  |
 |                                                                         |
 | This program is distributed in the hope that it will be useful,         |
 | but WITHOUT ANY WARRANTY; without even the implied warranty of          |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           |
 | GNU General Public License for more details.                            |
 +-------------------------------------------------------------------------+
 | Cacti: The Complete RRDTool-based Graphing Solution                     |
 +-------------------------------------------------------------------------+
 | This code is designed, written, and maintained by the Cacti Group. See  |
 | about.php and/or the AUTHORS file for specific developer information.   |
 +-------------------------------------------------------------------------+
 | http://www.cacti.net/                                                   |
 +-------------------------------------------------------------------------+
*/

/**
 * Executes the "Create Threshold from Template" bulk graph action:
 * applies a selected threshold template to a graph's matching data
 * source(s) (across all RRD items sharing the template's configured
 * data source name), creating a new thold_data row for each RRD item
 * that doesn't already have a threshold from that template, then
 * redirects back to the originating page with a summary message.
 *
 * @return void
 *
 * @global array $config Cacti global configuration array; used to
 *                       locate library files and build the redirect
 *                       URL.
 */
function thold_add_graphs_action_execute() {
	global $config;

	include_once($config['base_path'] . '/plugins/thold/includes/functions.php');

	$host_id           = get_filter_request_var('host_id');
	$local_graph_id    = get_filter_request_var('local_graph_id');
	$thold_template_id = get_filter_request_var('thold_template_id');

	$message = '';

	$template = db_fetch_row_prepared('SELECT *
		FROM thold_template
		WHERE id = ?',
		[$thold_template_id]);

	$temp = db_fetch_row_prepared('SELECT dtr.*
		FROM data_template_rrd AS dtr
		LEFT JOIN graph_templates_item AS gti
		ON gti.task_item_id=dtr.id
		LEFT JOIN graph_local AS gl
		ON gl.id=gti.local_graph_id
		WHERE gl.id = ?
		LIMIT 1' ,
		[$local_graph_id]);

	$data_template_id = $temp['data_template_id'];
	$local_data_id    = $temp['local_data_id'];

	$data_source = db_fetch_row_prepared('SELECT *
		FROM data_local
		WHERE id = ?',
		[$local_data_id]);

	$data_template_id = $data_source['data_template_id'];

	// allow duplicate thresholds, but only from differing templates
	$existing = db_fetch_assoc_prepared('SELECT id
		FROM thold_data
		WHERE local_data_id = ?
		AND data_template_rrd_id = ?
		AND thold_template_id = ?
		AND template_enabled = "on"',
		[$local_data_id, $data_template_id, $template['id']]);

	if (!cacti_sizeof($existing) && cacti_sizeof($template)) {
		if ($local_graph_id) {
			$rrd_id = db_fetch_cell_prepared('SELECT id
				FROM data_template_rrd
				WHERE local_data_id = ?
				ORDER BY id LIMIT 1',
				[$local_data_id]);

			$graph_template_id = db_fetch_cell_prepared('SELECT graph_template_id
				FROM graph_templates_item
				WHERE task_item_id = ?
				AND local_graph_id = ?',
				[$rrd_id, $local_graph_id]);

			$data_source_name = $template['data_source_name'];

			$save = [];

			$save['host_id']            = $data_source['host_id'];
			$save['local_data_id']      = $local_data_id;
			$save['local_graph_id']     = $local_graph_id;
			$save['data_template_id']   = $data_template_id;
			$save['graph_template_id']  = $graph_template_id;

			$save = thold_create_thold_save_from_template($save, $template);

			$save['name_cache'] = thold_expand_string($save, $save['name']);

			$rrdlist = db_fetch_assoc_prepared('SELECT id, data_input_field_id
				FROM data_template_rrd
				WHERE local_data_id = ?
				AND data_source_name = ?',
				[$local_data_id, $data_source_name]);

			if (cacti_sizeof($rrdlist)) {
				foreach ($rrdlist as $rrdrow) {
					$data_rrd_id                  = $rrdrow['id'];
					$save['data_template_rrd_id'] = $data_rrd_id;

					$existing = db_fetch_assoc_prepared("SELECT id
						FROM thold_data
						WHERE local_data_id = ?
						AND data_template_rrd_id = ?
						AND thold_template_id = ?
						AND template_enabled='on'",
						[$local_data_id, $data_rrd_id, $template['id']]);

					if (count($existing) == 0) {
						$save['id'] = 0;

						$id = sql_save($save, 'thold_data');

						if ($id) {
							thold_template_update_threshold($id, $save['thold_template_id']);

							$tname = db_fetch_cell_prepared('SELECT name
								FROM data_template
								WHERE id = ?',
								[$data_template_id]);

							$name = $data_source_name;

							if ($rrdrow['data_input_field_id'] != 0) {
								$name = db_fetch_cell_prepared('SELECT name
									FROM data_input_fields
									WHERE id = ?',
									[$rrdrow['data_input_field_id']]);
							}

							plugin_thold_log_changes($id, 'created', " $tname [$name]");

							$message .= "Created Threshold for the Graph '$tname' using the Data Source '$name'<br>";
						}
					}
				}
			}
		}
	}

	if (strlen($message)) {
		thold_raise_message($message, MESSAGE_LEVEL_INFO);
	} else {
		thold_raise_message(__('Threshold(s) Already Exists - No Thresholds Created', 'thold'), MESSAGE_LEVEL_INFO);
	}

	if (isset($_SESSION['graph_return'])) {
		$return_to = $_SESSION['graph_return'];

		unset($_SESSION['graph_return']);

		kill_session_var('graph_return');

		header('Location: ' . $return_to . (strpos($return_to, '?') !== false ? '&' : '?') . 'header=false');
	} else {
		header('Location:' . $config['url_path'] . 'plugins/thold/thold.php?header=false');
	}
}

/**
 * Renders the confirmation/selection page for the "Create Threshold
 * from Template" bulk graph action by delegating to thold_wizard().
 * Cacti device_action_prepare-style hook entry point.
 *
 * @return void
 *
 * @global array $config Cacti global configuration array (declared but
 *                       not used directly here).
 */
function thold_add_graphs_action_prepare() {
	global $config;

	top_header();

	thold_wizard();

	bottom_footer();
}

/**
 * Adds the "Create Threshold from Template" entry to the graph
 * management bulk-actions dropdown. Registered as a Cacti
 * graph_action_array-style hook.
 *
 * @param array $action The existing bulk-action label map, keyed by
 *                      action id.
 *
 * @return array The action map with this plugin's entry added.
 */
function thold_add_graphs_action_array($action) {
	$action['plugin_thold_create'] = __('Create Threshold from Template', 'thold');

	return $action;
}

/**
 * Renders the threshold-creation wizard: either the single-graph
 * "apply a threshold template" confirmation form (when a graph and
 * template selection was made), or the initial graph/template
 * selection form used to bulk-create thresholds from a template across
 * many graphs.
 *
 * @return void
 *
 * @global array $config Cacti global configuration array; used to
 *                       locate the graph helper library to include.
 */
function thold_wizard() {
	global $config;

	include_once($config['base_path'] . '/lib/html_graph.php');

	if (isset_request_var('usetemplate') && isset_request_var('local_graph_id')) {
		$local_graph_id = get_filter_request_var('local_graph_id');

		$graph_local = db_fetch_row_prepared('SELECT *
			FROM graph_local
			WHERE id = ?',
			[$local_graph_id]);

		if (cacti_sizeof($graph_local)) {
			if ($graph_local['snmp_query_id'] > 0) {
				$graph_template_id = $graph_local['snmp_query_graph_id'];
			} else {
				$graph_template_id = $graph_local['graph_template_id'];
			}

			$host_id       = $graph_local['host_id'];
			$data_query_id = $graph_local['snmp_query_id'];
			$snmp_index    = $graph_local['snmp_index'];

			$data_source_info  = db_fetch_cell_prepared('SELECT GROUP_CONCAT(DISTINCT dl.data_template_id) AS ids
				FROM data_local AS dl
				INNER JOIN data_template_rrd AS dtr
				ON dtr.local_data_id = dl.id
				INNER JOIN graph_templates_item AS gti
				ON dtr.id = gti.task_item_id
				LEFT JOIN (
					SELECT td.id, td.local_data_id, td.data_source_name, data_template_rrd_id
					FROM thold_data AS td
					INNER JOIN thold_template AS tt
					ON tt.id = td.thold_template_id
					WHERE td.host_id = ?
				) AS td
				ON td.local_data_id = dl.id
				AND td.data_source_name = dtr.data_source_name
				AND td.data_template_rrd_id = dtr.id
				WHERE gti.local_graph_id = ?
				AND td.id IS NULL',
				[$host_id, $local_graph_id]);

			if ($data_source_info != '') {
				$templates = db_fetch_assoc('SELECT id, name
					FROM thold_template
					WHERE data_template_id IN(' . $data_source_info . ')
					AND thold_enabled = "on"');

				if (cacti_sizeof($templates)) {
					$thold_template_id = $templates[0]['id'];
					$type_id           = 'template';
				} else {
					$thold_template_id = '';
					$type_id           = 'thold';
				}

				$parts            = explode(',', $data_source_info);
				$data_template_id = $parts[0];
			} else {
				$thold_template_id = '';
				$data_template_id  = '';
				$type_id           = 'thold';
				$templates         = [];
			}

			$data_template_rrd_id = '';

			set_request_var('type_id', $type_id);
			set_request_var('thold_template_id', $thold_template_id);
			set_request_var('my_host_id', $host_id);
			set_request_var('local_graph_id', $local_graph_id);
			set_request_var('data_template_rrd_id', $data_template_rrd_id);
			set_request_var('data_template_id', $data_template_id);
			set_request_var('data_query_id', $data_query_id);
			set_request_var('snmp_index', urlencode($snmp_index));
		} else {
			return false;
		}
	} else {
		$type_id              = get_nfilter_request_var('type_id');
		$thold_template_id    = get_filter_request_var('thold_template_id');
		$graph_template_id    = get_filter_request_var('graph_template_id');
		$host_id              = get_filter_request_var('my_host_id');
		$local_graph_id       = get_filter_request_var('local_graph_id');
		$data_template_rrd_id = get_filter_request_var('data_template_rrd_id');
		$data_template_id     = get_filter_request_var('data_template_id');
		$data_query_id        = get_filter_request_var('data_query_id');
		$snmp_index           = urldecode(get_nfilter_request_var('snmp_index'));

		$templates = db_fetch_assoc('SELECT id, name
			FROM thold_template
			WHERE thold_enabled="on"
			ORDER BY name');
	}

	$hosts = get_allowed_devices();

	$show_go    = false;
	$form_array = [];

	if ($type_id == '') {
		$message = __('Threshold Creation Wizard [ Select a Threshold Type ]', 'thold');
	} elseif ($type_id == 'template') {
		if ($thold_template_id != '' && $graph_template_id != '' && $host_id != '' && $snmp_index != '') {
			$show_go = true;
			$message = '<tr><td class="center">' . __('Threshold Creation Wizard [ Enter Custom Data and press \'Create\' to Create your Threshold and Graph ]', 'thold');
		} elseif ($thold_template_id != '' && $graph_template_id != '' && $host_id != '') {
			$message = __('Threshold Creation Wizard [ Select Available Data Query Rows ]', 'thold');
		} elseif ($thold_template_id != '' && $graph_template_id != '') {
			$message = __('Threshold Creation Wizard [ Select a Device ]', 'thold');
		} elseif ($thold_template_id != '') {
			$message = __('Threshold Creation Wizard [ Select a Graph Template ]', 'thold');
		} else {
			$message = __('Threshold Creation Wizard [ Select a Threshold Template ]', 'thold');
		}
	} else {
		if ($host_id != '' && $local_graph_id != '' && $data_template_rrd_id != '') {
			$show_go = true;
			$message = __('Threshold Creation Wizard [ Press \'Create\' to Create your Threshold ]', 'thold') . '</td></tr>';
		} elseif ($host_id != '' && $local_graph_id != '') {
			$message = __('Threshold Creation Wizard [ Select a Data Source ]', 'thold') . '</td></tr>';
		} elseif ($host_id != '') {
			$message = __('Threshold Creation Wizard [ Select a Graph ]', 'thold') . '</td></tr>';
		} else {
			$message = __('Threshold Creation Wizard [ Select a Device ]', 'thold') . '</td></tr>';
		}
	}

	// display the type dropdown
	$form_array['spacer']  = [
		'method'        => 'spacer',
		'friendly_name' => __('Threshold Creation Criteria', 'thold'),
	];

	$form_array['type_id'] = [
		'method'        => 'drop_array',
		'friendly_name' => __('Create Type', 'thold'),
		'description'   => __('Select a Threshold Type to use for creating this Threshold.', 'thold'),
		'on_change'     => 'applyTholdFilter()',
		'value'         => $type_id,
		'array'         => [
			'none'  => __('Select a Threshold Type', 'thold'),
			'thold' => __('Non Templated', 'thold'),
		]
	];

	if (cacti_sizeof($templates)) {
		$form_array['type_id']['array']['template'] = __('Threshold Template', 'thold');
	}

	if ($type_id == 'template') {
		$form_array['thold_template_id'] = [
			'method'        => 'drop_sql',
			'friendly_name' => __('Threshold Template', 'thold'),
			'description'   => __('Select a Threshold Template that the Graph and Threshold will be based upon.', 'thold'),
			'on_change'     => 'applyTholdFilter()',
			'value'         => $thold_template_id,
			'sql'           => 'SELECT id, name FROM thold_template WHERE thold_enabled="on" ORDER BY name',
			'none_value'    => __('Select a Threshold Template', 'thold')
		];

		$host_ids = [];
		$in_sql   = [];

		if ($thold_template_id != '') {
			// display the host dropdown
			$graph_templates = array_rekey(
				db_fetch_assoc_prepared('SELECT DISTINCT gt.id, gt.name
					FROM graph_templates AS gt
					INNER JOIN graph_templates_item AS gti
					ON gt.id=gti.graph_template_id
					AND local_graph_id=0
					INNER JOIN data_template_rrd AS dtr
					ON dtr.id=task_item_id
					INNER JOIN thold_template AS tt
					ON tt.data_template_id=dtr.data_template_id
					AND tt.id = ?',
					[$thold_template_id]),
				'id', 'name'
			);

			// Limit the hosts to only hosts that either have a graph template
			// Listed as multiple, or do not have a threshold created
			// Using the Graph Template listed
			// If the Graph Template is associated with a Data Query
			// make sure that your get all the Data Query based Graph Templates
			if (cacti_sizeof($graph_templates)) {
				$new_templates = [];
				$hql           = '';

				$data_query_id = db_fetch_cell('SELECT snmp_query_id
					FROM snmp_query_graph
					WHERE graph_template_id IN (' . implode(', ', array_keys($graph_templates)) . ')');

				if ($data_query_id) {
					$data_template_id = db_fetch_cell_prepared('SELECT data_template_id
						FROM thold_template
						WHERE id = ?',
						[$thold_template_id]);

					$templates = db_fetch_assoc_prepared('SELECT DISTINCT sqg.id, sqg.name
						FROM snmp_query_graph AS sqg
						INNER JOIN graph_templates_item AS gti
						ON sqg.graph_template_id = gti.graph_template_id
						AND gti.local_graph_id = 0
						INNER JOIN data_template_rrd AS dtr
						ON gti.task_item_id=dtr.id
						AND dtr.local_data_id = 0
						WHERE snmp_query_id IN(
							SELECT snmp_query_id
							FROM snmp_query_graph
							WHERE graph_template_id IN (' . implode(', ', array_keys($graph_templates)) . ')
						)
						AND dtr.data_template_id = ?',
						[$data_template_id]);

					if (cacti_sizeof($templates)) {
						$new_templates = $templates;

						foreach ($templates as $t) {
							$in_sql[$t['id']] = $t['id'];
						}
					}

					$host_templates = array_rekey(
						db_fetch_assoc_prepared('SELECT host_template_id AS id
							FROM host_template_snmp_query
							WHERE snmp_query_id = ?',
							[$data_query_id]),
						'id', 'id');

					if (cacti_sizeof($host_templates)) {
						$hql = 'h.host_template_id IN(' . implode(', ', $host_templates) . ')';
					} else {
						$hosts_ids = [];
					}
				} else {
					$host_template_ids = array_rekey(
						db_fetch_assoc_prepared('SELECT host_template_id
							FROM host_template_graph
							WHERE graph_template_id = ?',
							[$graph_template_id]),
						'host_template_id', 'host_template_id');

					if (cacti_sizeof($host_template_ids)) {
						$hiql = ' WHERE h.host_template_id IN (' . implode(', ', $host_template_ids) . ')';
					} else {
						$hiql = ' WHERE 0 = 1';
					}

					foreach ($graph_templates as $key => $name) {
						$new_templates[] = ['id' => $key, 'name' => $name];

						$in_sql[$key] = $key;
					}

					$host_ids = array_rekey(db_fetch_assoc('SELECT DISTINCT rs.id
						FROM (
							SELECT h.id, gt.id AS gti, gt.multiple, h.host_template_id
							FROM host AS h, graph_templates AS gt
							' . $hiql . '
						) AS rs
						LEFT JOIN graph_local AS gl
						ON gl.graph_template_id=rs.gti
						AND gl.host_id=rs.id
						WHERE (gti IN(' . implode(', ', $in_sql) . ')
						AND host_id IS NULL)
						OR rs.multiple = "on"'), 'id', 'id');
				}
			} else {
				$host_ids = ['0'];
			}

			if (!cacti_sizeof($in_sql)) {
				$in_sql[] = 'NULL';
			}

			if (!$data_query_id) {
				$gr_sql = 'SELECT gt.id, gt.name
					FROM graph_templates AS gt
					WHERE id IN (' . implode(', ', $in_sql) . ')
					ORDER BY name';
			} else {
				$gr_sql = 'SELECT id, name
					FROM snmp_query_graph AS gt
					WHERE id IN (' . implode(', ', $in_sql) . ')
					ORDER BY name';
			}

			$form_array['graph_template_id'] = [
				'method'        => 'drop_sql',
				'friendly_name' => __('Graph Template', 'thold'),
				'description'   => __('Select a Graph Template to use for the Graph to be created.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'value'         => $graph_template_id,
				'sql'           => $gr_sql,
				'none_value'    => __('Select a Graph Template', 'thold')
			];
		}

		if ($graph_template_id > 0) {
			if (isset($hql) && $hql != '') {
				$sql = "SELECT id, description AS name FROM host AS h WHERE $hql ORDER BY description";
			} elseif (cacti_sizeof($host_ids)) {
				$sql = 'SELECT id, description AS name FROM host AS h WHERE h.id IN (' . implode(', ', $host_ids) . ') ORDER BY description';
			} else {
				$sql = 'SELECT id, description AS name FROM host AS h ORDER BY description';
			}

			$form_array['my_host_id'] = [
				'method'        => 'drop_sql',
				'friendly_name' => __('Device', 'thold'),
				'description'   => __('Select a Device to use for the Threshold and Graph to be created.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'value'         => $host_id,
				'sql'           => $sql,
				'none_value'    => __('Select a Device', 'thold')
			];
		}

		if ($host_id > 0 && $data_query_id > 0) {
			$available_items = [];
			$sort_field      = db_fetch_cell_prepared('SELECT sort_field
				FROM host_snmp_query
				WHERE host_id = ?
				AND snmp_query_id = ?',
				[$host_id, $data_query_id]);

			if ($sort_field != '') {
				$available_items = ['noneselected' => __('Select an Available Item', 'thold')];

				$available_items += array_rekey(
					db_fetch_assoc_prepared('SELECT hsc.snmp_index AS id, hsc.field_value AS name
						FROM host_snmp_cache AS hsc
						LEFT JOIN (
							SELECT *
							FROM graph_local AS gl
							WHERE snmp_query_id = ?
							AND host_id = ?
							AND snmp_query_graph_id = ?
						) AS gl
						ON hsc.host_id = gl.host_id
						AND hsc.snmp_query_id = gl.snmp_query_id
						AND hsc.snmp_index = gl.snmp_index
						WHERE hsc.host_id = ?
						AND hsc.snmp_query_id = ?
						AND field_name = ?',
						[
							$data_query_id,
							$host_id,
							$graph_template_id,
							$host_id,
							$data_query_id,
							$sort_field
						]
					),
					'id', 'name'
				);
			}

			$form_array['snmp_index'] = [
				'method'        => 'drop_array',
				'friendly_name' => __('Data Query Item', 'thold'),
				'description'   => __('Select the applicable row from the Data Query for the Graph and Threshold.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'value'         => $snmp_index,
				'array'         => $available_items,
				'default'       => ''
			];
		} else {
			$local_graph_id       = 0;
			$data_template_rrd_id = 0;
		}

		if ($data_query_id) {
			$form_array['data_query_id'] = [
				'method' => 'hidden',
				'value'  => $data_query_id
			];

			$form_array['data_template_id'] = [
				'method' => 'hidden',
				'value'  => $data_template_id
			];
		} else {
			$form_array['data_query_id'] = [
				'method' => 'hidden',
				'value'  => '0'
			];

			$form_array['data_template_id'] = [
				'method' => 'hidden',
				'value'  => '0'
			];
		}

		top_header();

		form_start('thold.php?action=save', 'chk');

		html_start_box($message, '100%', false, '3', 'center', '');

		draw_edit_form(
			[
				'config' => ['no_form_tag' => true],
				'fields' => $form_array
			]
		);

		html_end_box(false);

		html_start_box(__('Creation Notes', 'thold'), '100%', false, '3', 'center', '');
		print '<tr><td><p style="padding:0px 5px"><b><font color=\'red\'>' . __('Important Note:', 'thold') . '&nbsp;&nbsp;</font></b>';
		print __('This Threshold will be Templated.  When using the Threshold Template option, you will be prompted for a Threshold Template, Graph Template, Device and possibly Data Query Item information before receiving the \'Create\' prompt at which time, if any overridable Graph or Data Source information is allowed at the Graph and Data Source Template level, you will be prompted for it.  Then, by pressing the \'Create\' button, both the Graph and Threshold will be created simultaneously.', 'thold') . '</p></td></tr>';
		html_end_box(false);

		if ($data_query_id > 0) {
			if ($snmp_index != 'noneselected' && $snmp_index != '' && $host_id > 0 && $thold_template_id > 0 && $graph_template_id > 0) {
				$host_template_id = db_fetch_cell_prepared('SELECT host_template_id
					FROM host
					WHERE id = ?',
					[$host_id]);

				$selected_graphs['sg'][$data_query_id][$graph_template_id][encode_data_query_index($snmp_index)] = true;

				thold_graph_new_graphs('thold.php', $host_id, $host_template_id, $selected_graphs);

				form_end();
			}
		} elseif ($host_id > 0 && $thold_template_id > 0 && $graph_template_id > 0) {
			$host_template_id = db_fetch_cell_prepared('SELECT host_template_id
				FROM host
				WHERE id = ?',
				[$host_id]);

			$selected_graphs['cg'][$graph_template_id][$graph_template_id] = true;

			thold_graph_new_graphs('thold.php', $host_id, $host_template_id, $selected_graphs);

			form_end();
		}
	} elseif ($type_id == 'thold') {
		$host_template_ids = array_rekey(
			db_fetch_assoc_prepared('SELECT host_template_id
				FROM host_template_graph
				WHERE graph_template_id = ?',
				[$graph_template_id]),
			'host_template_id', 'host_template_id');

		if (cacti_sizeof($host_template_ids)) {
			$hiql = ' AND host_template_id IN (' . implode(', ', $host_template_ids) . ')';
		} else {
			$hiql = ' AND 0 = 1';
		}

		if (get_selected_theme() != 'classic') {
			$form_array['my_host_id'] = [
				'method'        => 'drop_callback',
				'friendly_name' => __('Device', 'thold'),
				'description'   => __('Select a Device to use for the Threshold and Graph to be created.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'action'        => 'ajax_hosts',
				'id'            => $host_id,
				'sql'           => 'SELECT id, description AS name FROM host WHERE disabled != "" AND deleted != ""' . $hiql,
				'value'         => db_fetch_cell_prepared('SELECT description FROM host WHERE id = ?', [$host_id]),
				'none_value'    => __('Select a Device', 'thold')
			];
		} else {
			if ($hiql == ' AND 0 = 1') {
				$hiql = '';
			}

			$hosts = array_rekey(get_allowed_devices($hiql),
				'id', 'description'
			);

			$form_array['my_host_id'] = [
				'method'        => 'drop_array',
				'friendly_name' => __('Device', 'thold'),
				'description'   => __('Select a Device to use for the Threshold and Graph to be created.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'array'         => $hosts,
				'value'         => $host_id,
				'none_value'    => __('Select a Device', 'thold')
			];
		}

		if ($host_id > 0) {
			$graphs = get_allowed_graphs('gl.host_id=' . $host_id);

			$ng = [];

			if (cacti_sizeof($graphs)) {
				foreach ($graphs as $g) {
					$ng[$g['local_graph_id']] = $g['title_cache'];
				}
			}

			$form_array['local_graph_id'] = [
				'method'        => 'drop_array',
				'friendly_name' => __('Graph', 'thold'),
				'description'   => __('Select the Graph for the Threshold.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'value'         => $local_graph_id,
				'array'         => $ng,
				'none_value'    => __('Select a Graph', 'thold')
			];
		}

		if ($local_graph_id != '' && $host_id > 0) {
			$dt_sql = 'SELECT DISTINCT dtr.local_data_id
				FROM data_template_rrd AS dtr
				LEFT JOIN graph_templates_item AS gti
				ON gti.task_item_id=dtr.id
				LEFT JOIN graph_local AS gl
				ON gl.id=gti.local_graph_id
				WHERE gl.id = ' . $local_graph_id;

			$local_data_id = db_fetch_cell($dt_sql);

			$dss = array_rekey(
				db_fetch_assoc('SELECT DISTINCT id, data_source_name AS name
					FROM data_template_rrd
					WHERE local_data_id IN (' . $dt_sql . ')
					ORDER BY data_source_name'),
				'id', 'name');

			$form_array['data_template_rrd_id'] = [
				'method'        => 'drop_array',
				'friendly_name' => __('Data Source', 'thold'),
				'description'   => __('Select a Data Source for the Threshold.', 'thold'),
				'on_change'     => 'applyTholdFilter()',
				'value'         => $data_template_rrd_id,
				'array'         => $dss,
				'none_value'    => __('Select a Data Source', 'thold')
			];

			$form_array['local_data_id'] = [
				'method' => 'hidden',
				'value'  => $local_data_id
			];
		} else {
			$local_graph_id       = 0;
			$data_template_rrd_id = 0;
		}

		top_header();

		form_start('thold.php?action=save', 'chk');

		html_start_box($message, '100%', false, '3', 'center', '');

		draw_edit_form(
			[
				'config' => ['no_form_tag' => true],
				'fields' => $form_array
			]
		);

		if ($data_template_rrd_id > 0) {
			print "<tr class='odd'>
				<td colspan='2' class='saveRow'>
					<input type='submit' value='" . __esc('Create', 'thold') . "'>
				</td>
			</tr>\n";
		}

		html_end_box(false);

		html_start_box(__('Creation Notes', 'thold'), '100%', false, '3', 'center', '');
		print '<tr><td><p style="padding:0px 5px"><b><font color=\'red\'>' . __('Important Note:', 'thold') . '&nbsp;&nbsp;</font></b>';
		print __('This Threshold will <b>NOT</b> be Templated and will only work on existing Graphs.  If you wish to both Create the Graph and the Threshold simultaneously, select Threshold Template from the drop down and continue until the \'Create\' button appears.', 'thold') . '</p></td></tr>';
		html_end_box(false);
	} else {
		top_header();

		form_start('thold.php?action=save', 'chk');

		html_start_box($message, '100%', false, '3', 'center', '');

		draw_edit_form(
			[
				'config' => ['no_form_tag' => true],
				'fields' => $form_array
			]
		);

		html_end_box(false);

		html_start_box(__('Creation Notes', 'thold'), '100%', false, '3', 'center', '');
		print '<tr><td><p style="padding:0px 5px"><b><font color=\'red\'>' . __('Important Note:', 'thold') . '&nbsp;&nbsp;</font></b>';
		print __('This Threshold will <b>NOT</b> be Templated.  You can select either By Graph where you will then select an existing Device, Graph and Data Source before creating your Threshold, or you can select Threshold Template which will allow you to create a Non Templated Threshold and corresponding Graph simultaneously', 'thold') . '</p></td></tr>';
		html_end_box(false);
	}

	if ($local_graph_id > 0) {
		html_start_box(__('Selected Graph', 'thold'), '100%', '', '3', 'center', '');

		print "<tr><td class='center'><p><img class='center' id='graphi' style='max-width:700px;' src='" . $config['url_path'] . "graph_image.php?local_graph_id=$local_graph_id&rra_id=0'></p></td></tr>";

		html_end_box();
	}

	form_end();

	?>
	<script type='text/javascript' <?php print plugin_thold_csp_nonce(); ?>>

	function applyTholdFilter() {
		strURL  = 'thold.php?action=add&header=false';
		strURL += '&type_id=' + encodeURIComponent($('#type_id').val());

		if ($('#type_id').val() == 'thold') {
			if ($('#my_host_id').length && $('#my_host_id').val() > 0) {
				strURL += '&my_host_id=' + encodeURIComponent($('#my_host_id').val());
			}

			if ($('#local_graph_id').length && $('#local_graph_id').val() > 0) {
				strURL += '&local_graph_id=' + encodeURIComponent($('#local_graph_id').val());
			}

			if ($('#data_template_rrd_id').length && $('#data_template_rrd_id').val() > 0) {
				strURL += '&data_template_rrd_id=' + encodeURIComponent($('#data_template_rrd_id').val());
			}
		} else {
			if ($('#thold_template_id').length && $('#thold_template_id').val() > 0) {
				strURL += '&thold_template_id=' + encodeURIComponent($('#thold_template_id').val());
			}

			if ($('#graph_template_id').length && $('#graph_template_id').val() > 0) {
				strURL += '&graph_template_id=' + encodeURIComponent($('#graph_template_id').val());
			}

			if ($('#data_query_id').length && $('#data_query_id').val() > 0) {
				strURL += '&data_query_id=' + encodeURIComponent($('#data_query_id').val());
			}

			if ($('#data_template_id').length && $('#data_template_id').val() > 0) {
				strURL += '&data_template_id=' + encodeURIComponent($('#data_template_id').val());
			}

			if ($('#my_host_id').length && $('#my_host_id').val() != 0) {
				strURL += '&my_host_id=' + encodeURIComponent($('#my_host_id').val());
			}

			if ($('#snmp_index').length && $('#snmp_index').val() != '') {
				strURL += '&snmp_index=' + encodeURIComponent($('#snmp_index').val());
			}
		}

		loadPageNoHeader(strURL, false, true);
	}

	$(function() {
		if ($('#type_id').val() == 'template') {
			$('#submit').prev().hide();
			$('#submit').off().click(function(event) {
				event.preventDefault();

				json = $('input, select').serializeObject();
				$.post('thold.php', json).done(function(data) {
					$('#main').html(data);
					applySkin();
					window.scrollTo(0, 0);
				});
			});
		}
	});

	</script>
	<?php

	bottom_footer();
}

/**
 * Processes the "create graphs" wizard's submitted selection of new
 * graphs/data sources for a host, creating each selected graph (and
 * its underlying data source) via Cacti's graph creation API, then
 * applying this plugin's configured auto-threshold-creation behavior
 * to the newly created graphs. The selected-graphs payload is a nested
 * (not flat) serialized structure, so it's parsed with a
 * nested-structure-aware sanitizer/unserializer rather than the
 * standard flat selected-items sanitizer.
 *
 * @param int $host_id The host id the new graphs are being created
 *                     for.
 *
 * @return array|false The created graphs' details, or false if nothing
 *                     was created/selected.
 */
function thold_new_graphs_save($host_id) {
	$return_array = false;

	// Nested wizard structure (cg/sg), not a flat ID list. Flat
	// sanitize_unserialize_selected_items() rejects nested arrays and would
	// break graph creation. Prefer the graphs-specific sanitizer when present
	// (Cacti develop+); otherwise unserialize with allowed_classes => false.
	$raw = get_nfilter_request_var('selected_graphs_array');

	if (function_exists('sanitize_unserialize_selected_graphs')) {
		$selected_graphs_array = sanitize_unserialize_selected_graphs($raw);
	} elseif (function_exists('cacti_unserialize') && is_string($raw) && $raw !== '') {
		$selected_graphs_array = cacti_unserialize(stripslashes($raw));
	} elseif (is_string($raw) && $raw !== '') {
		$unstripped = stripslashes($raw);

		if (preg_match('/^a:[0-9]+:{/', $unstripped) && !preg_match('/(^|;|{|})O:\+?[0-9]+:"/', $unstripped)) {
			$selected_graphs_array = unserialize($unstripped, ['allowed_classes' => false]);
		} else {
			$selected_graphs_array = false;
		}
	} else {
		$selected_graphs_array = false;
	}

	if (!is_array($selected_graphs_array)) {
		return false;
	}

	foreach ($selected_graphs_array as $form_type => $form_array) {
		if (($form_type !== 'cg' && $form_type !== 'sg') || !is_array($form_array)) {
			return false;
		}
	}

	$values = [];

	// form an array that contains all of the data on the previous form
	foreach ($_POST as $var => $val) {
		if (preg_match('/^g_(\d+)_(\d+)_(\w+)/', $var, $matches)) {
			// 1: snmp_query_id, 2: graph_template_id, 3: field_name

			// this is a new graph from template field
			if (empty($matches[1])) {
				$values['cg'][$matches[2]]['graph_template'][$matches[3]] = $val;
			} else { // this is a data query field
				$values['sg'][$matches[1]][$matches[2]]['graph_template'][$matches[3]] = $val;
			}
		} elseif (preg_match('/^gi_(\d+)_(\d+)_(\d+)_(\w+)/', $var, $matches)) {
			// 1: snmp_query_id, 2: graph_template_id, 3: graph_template_input_id, 4:field_name

			// ================= input validation =================
			input_validate_input_number($matches[3]);
			// ====================================================

			// we need to find out which graph items will be affected by saving this particular item
			$item_list = db_fetch_assoc_prepared('SELECT
				graph_template_item_id
				FROM graph_template_input_defs
				WHERE graph_template_input_id = ?',
				[$matches[3]]);

			// loop through each item affected and update column data
			if (cacti_sizeof($item_list)) {
				foreach ($item_list as $item) {
					// this is a new graph from template field
					if (empty($matches[1])) {
						$values['cg'][$matches[2]]['graph_template_item'][$item['graph_template_item_id']][$matches[4]] = $val;
					} else {
						// this is a data query field
						$values['sg'][$matches[1]][$matches[2]]['graph_template_item'][$item['graph_template_item_id']][$matches[4]] = $val;
					}
				}
			}
		} elseif (preg_match('/^d_(\d+)_(\d+)_(\d+)_(\w+)/', $var, $matches)) {
			// 1: snmp_query_id, 2: graph_template_id, 3: data_template_id, 4:field_name

			// this is a new graph from template field
			if (empty($matches[1])) {
				$values['cg'][$matches[2]]['data_template'][$matches[3]][$matches[4]] = $val;
			} else {
				// this is a data query field
				$values['sg'][$matches[1]][$matches[2]]['data_template'][$matches[3]][$matches[4]] = $val;
			}
		} elseif (preg_match('/^c_(\d+)_(\d+)_(\d+)_(\d+)/', $var, $matches)) {
			// 1: snmp_query_id, 2: graph_template_id, 3: data_template_id, 4:data_input_field_id

			// this is a new graph from template field
			if (empty($matches[1])) {
				$values['cg'][$matches[2]]['custom_data'][$matches[3]][$matches[4]] = $val;
			} else { // this is a data query field
				$values['sg'][$matches[1]][$matches[2]]['custom_data'][$matches[3]][$matches[4]] = $val;
			}
		} elseif (preg_match('/^di_(\d+)_(\d+)_(\d+)_(\d+)_(\w+)/', $var, $matches)) { // 1: snmp_query_id, 2: graph_template_id, 3: data_template_id, 4:local_data_template_rrd_id, 5:field_name
			// 1: snmp_query_id, 2: graph_template_id, 3: data_template_id, 4:local_data_template_rrd_id, 5:field_name

			// this is a new graph from template field
			if (empty($matches[1])) { // this is a new graph from template field
				$values['cg'][$matches[2]]['data_template_item'][$matches[4]][$matches[5]] = $val;
			} else { // this is a data query field
				$values['sg'][$matches[1]][$matches[2]]['data_template_item'][$matches[4]][$matches[5]] = $val;
			}
		}
	}

	debug_log_clear('new_graphs');

	foreach ($selected_graphs_array as $form_type => $form_array) {
		$current_form_type = $form_type;

		foreach ($form_array as $form_id1 => $form_array2) {
			// enumerate information from the arrays stored in post variables
			if ($form_type == 'cg') {
				$graph_template_id = $form_id1;
			} elseif ($form_type == 'sg') {
				foreach ($form_array2 as $form_id2 => $form_array3) {
					$snmp_index_array = $form_array3;

					$snmp_query_array['snmp_query_id']       = $form_id1;
					$snmp_query_array['snmp_index_on']       = get_best_data_query_index_type($host_id, $form_id1);
					$snmp_query_array['snmp_query_graph_id'] = $form_id2;
				}

				$graph_template_id = db_fetch_cell_prepared('SELECT graph_template_id
					FROM snmp_query_graph
					WHERE id = ?',
					[$snmp_query_array['snmp_query_graph_id']]);
			}

			if ($current_form_type == 'cg') {
				$return_array = create_complete_graph_from_template($graph_template_id, $host_id, '', $values['cg']);

				if (cacti_sizeof($return_array)) {
					thold_raise_message(__esc('Created graph: %s', get_graph_title($return_array['local_graph_id']), 'thold'), MESSAGE_LEVEL_INFO);

					// lastly push host-specific information to our data sources
					foreach ($return_array['local_data_id'] as $item) {
						push_out_host($host_id, $item);
					}
				}
			} elseif ($current_form_type == 'sg') {
				foreach ($snmp_index_array as $snmp_index => $true) {
					$snmp_query_array['snmp_index'] = decode_data_query_index($snmp_index, $snmp_query_array['snmp_query_id'], $host_id);

					$return_array = create_complete_graph_from_template($graph_template_id, $host_id, $snmp_query_array, $values['sg'][$snmp_query_array['snmp_query_id']]);

					if (cacti_sizeof($return_array)) {
						thold_raise_message(__esc('Created graph: %s', get_graph_title($return_array['local_graph_id']), 'thold'), MESSAGE_LEVEL_INFO);

						// lastly push host-specific information to our data sources
						foreach ($return_array['local_data_id'] as $item) {
							push_out_host($host_id, $item);
						}
					}
				}
			}
		}
	}

	return $return_array;
}

/**
 * Renders the "create graphs" wizard page for a host/host template,
 * listing the available graph templates/data queries to select new
 * graphs from, using output buffering so the page can redirect
 * elsewhere if no selectable fields end up being drawn.
 *
 * @param string $page                   The current page name (used
 *                                       for wizard step navigation).
 * @param int    $host_id                The host id to create graphs
 *                                       for.
 * @param int    $host_template_id       The host template id providing
 *                                       candidate graph templates/data
 *                                       queries.
 * @param array  $selected_graphs_array  Previously selected graph
 *                                       choices to preserve across
 *                                       wizard steps.
 *
 * @return void
 */
function thold_graph_new_graphs($page, $host_id, $host_template_id, $selected_graphs_array) {
	/* we use object buffering on this page to allow redirection to another page if no
	fields are actually drawn */
	ob_start();

	top_header();

	form_start($page);

	$snmp_query_id     = 0;
	$num_output_fields = [];

	foreach ($selected_graphs_array as $form_type => $form_array) {
		foreach ($form_array as $form_id1 => $form_array2) {
			$num_output_fields += html_graph_custom_data($host_id, $host_template_id, $snmp_query_id, $form_type, $form_id1, $form_array2);
		}
	}

	// flush the current output buffer to the browser
	ob_end_flush();

	form_hidden_box('host_template_id', $host_template_id, '0');
	form_hidden_box('host_id', $host_id, '0');
	form_hidden_box('save_component_new_graphs', '1', '');
	form_hidden_box('save_autocreate', '0', '');
	form_hidden_box('selected_graphs_array', serialize($selected_graphs_array), '');

	if (isset($_SERVER['HTTP_REFERER']) && !substr_count($_SERVER['HTTP_REFERER'], 'graphs_new')) {
		set_request_var('returnto', basename($_SERVER['HTTP_REFERER']));
	}

	load_current_session_value('returnto', 'sess_grn_returnto', '');

	form_save_button(get_nfilter_request_var('returnto'));
}