<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2016 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/                                                   |
 +-------------------------------------------------------------------------+
*/

include('./include/auth.php');
include_once('./lib/template.php');

/* set default action */
set_default_action();

switch (get_request_var('action')) {
	case 'save':
		form_save();

		break;
	case 'input_remove':
		input_remove();

		header('Location: graph_templates.php?header=false&action=template_edit&id=' . get_request_var('graph_template_id'));
		break;
	case 'input_edit':
		top_header();

		input_edit();

		bottom_footer();
		break;
}

function form_save() {
	if ((isset_request_var('save_component_input')) && (!is_error_message())) {
		$graph_input_values = array();
		$selected_graph_items = array();

		/* ================= input validation ================= */
		get_filter_request_var('graph_template_input_id');
		get_filter_request_var('graph_template_id');
		/* ==================================================== */
		
		$save['id'] = get_nfilter_request_var('graph_template_input_id');
		$save['hash'] = get_hash_graph_template(get_nfilter_request_var('graph_template_input_id'), 'graph_template_input');
		$save['graph_template_id'] = get_nfilter_request_var('graph_template_id');
		$save['name'] = form_input_validate(get_nfilter_request_var('name'), 'name', '', false, 3);
		$save['description'] = form_input_validate(get_nfilter_request_var('description'), 'description', '', true, 3);
		$save['column_name'] = form_input_validate(get_nfilter_request_var('column_name'), 'column_name', '', true, 3);

		if (!is_error_message()) {
			$graph_template_input_id = sql_save($save, 'graph_template_input');

			if ($graph_template_input_id) {
				raise_message(1);

				/* list all graph items from the db so we can compare them with the current form */
				$db_selected_graph_item = array_rekey(db_fetch_assoc_prepared('SELECT graph_template_item_id FROM graph_template_input_defs WHERE graph_template_input_id = ?', array($graph_template_input_id)), 'graph_template_item_id', 'graph_template_item_id');

				/* list all select graph items for use down below */
				while (list($var, $val) = each($_POST)) {
					if (preg_match("/^i_(\d+)$/", $var, $matches)) {
						/* ================= input validation ================= */
						input_validate_input_number($matches[1]);
						/* ==================================================== */

						$selected_graph_items{$matches[1]} = $matches[1];

						if (isset($db_selected_graph_item{$matches[1]})) {
							/* is selected and exists in the db; old item */
							$old_members{$matches[1]} = $matches[1];
						}else{
							/* is selected and does not exist the db; new item */
							$new_members{$matches[1]} = $matches[1];
						}
					}
				}

				if ((isset($new_members)) && (sizeof($new_members) > 0)) {
					while (list($item_id, $item_id) = each($new_members)) {
						push_out_graph_input($graph_template_input_id, $item_id, (isset($new_members) ? $new_members : array()));
					}
				}

				db_execute_prepared('DELETE FROM graph_template_input_defs WHERE graph_template_input_id = ?', array($graph_template_input_id));

				if (sizeof($selected_graph_items) > 0) {
					foreach ($selected_graph_items as $graph_template_item_id) {
						db_execute_prepared('INSERT INTO graph_template_input_defs (graph_template_input_id, graph_template_item_id) VALUES (?, ?)', array($graph_template_input_id, $graph_template_item_id));
					}
				}
			}else{
				raise_message(2);
			}
		}

		if (is_error_message()) {
			header('Location: graph_templates_inputs.php?header=false&action=input_edit&graph_template_input_id=' . (empty($graph_template_input_id) ? get_nfilter_request_var('graph_template_input_id') : $graph_template_input_id) . '&graph_template_id=' . get_nfilter_request_var('graph_template_id'));
			exit;
		}else{
			header('Location: graph_templates.php?header=false&action=template_edit&id=' . get_nfilter_request_var('graph_template_id'));
			exit;
		}
	}
}

/* ------------------------------------
    input - Graph Template Item Inputs
   ------------------------------------ */

function input_remove() {
	/* ================= input validation ================= */
	get_filter_request_var('id');
	get_filter_request_var('graph_template_id');
	/* ==================================================== */

	if ((read_config_option('deletion_verification') == 'on') && (!isset_request_var('confirm'))) {
		top_header();

		form_confirm(__('Are You Sure?'), __('Are you sure you want to delete the input item <strong>\'%s\'</strong>? NOTE: Deleting this item will NOT affect graphs that use this template.', htmlspecialchars(db_fetch_cell_prepared('SELECT name FROM graph_template_input WHERE id = ?', array(get_request_var('id'))), ENT_QUOTES)), htmlspecialchars('graph_templates.php?action=template_edit&id=' . get_request_var('graph_template_id')), htmlspecialchars('graph_templates_inputs.php?action=input_remove&id=' . get_request_var('id') . '&graph_template_id=' . get_request_var('graph_template_id')));

		bottom_footer();
		exit;
	}

	if ((read_config_option('deletion_verification') == '') || (isset_request_var('confirm'))) {
		db_execute_prepared('DELETE FROM graph_template_input WHERE id = ?', array(get_request_var('id')));
		db_execute_prepared('DELETE FROM graph_template_input_defs WHERE graph_template_input_id = ?', array(get_request_var('id')));
	}
}

function input_edit() {
	global $consolidation_functions, $graph_item_types, $struct_graph_item, $fields_graph_template_input_edit;

	/* ================= input validation ================= */
	get_filter_request_var('id');
	get_filter_request_var('graph_template_id');
	/* ==================================================== */

	$header_label = __('Graph Item Inputs [edit graph: %s]' . htmlspecialchars(db_fetch_cell_prepared('SELECT name FROM graph_templates WHERE id = ?', array(get_request_var('graph_template_id')))));

	/* get a list of all graph item field names and populate an array for user display */
	while (list($field_name, $field_array) = each($struct_graph_item)) {
		if ($field_array['method'] != 'view') {
			$graph_template_items[$field_name] = $field_array['friendly_name'];
		}
	}

	if (!isempty_request_var('id')) {
		$graph_template_input = db_fetch_row_prepared('SELECT * FROM graph_template_input WHERE id = ?', array(get_request_var('id')));
	}

	form_start('graph_templates_inputs.php');

	html_start_box($header_label, '100%', '', '3', 'center', '');

	draw_edit_form(
		array(
			'config' => array('no_form_tag' => true),
			'fields' => inject_form_variables($fields_graph_template_input_edit, (isset($graph_template_input) ? $graph_template_input : array()), (isset($graph_template_items) ? $graph_template_items : array()), $_REQUEST)
		)
	);

	if (!isset_request_var('id')) { 
		set_request_var('id', 0);
	}

	$item_list = db_fetch_assoc_prepared("SELECT
		CONCAT_WS(' - ', data_template_data.name, data_template_rrd.data_source_name) AS data_source_name,
		graph_templates_item.text_format,
		graph_templates_item.id AS graph_templates_item_id,
		graph_templates_item.graph_type_id,
		graph_templates_item.consolidation_function_id,
		graph_template_input_defs.graph_template_input_id
		FROM graph_templates_item
		LEFT JOIN graph_template_input_defs ON (graph_template_input_defs.graph_template_item_id = graph_templates_item.id AND graph_template_input_defs.graph_template_input_id = ?)
		LEFT JOIN data_template_rrd ON (graph_templates_item.task_item_id = data_template_rrd.id)
		LEFT JOIN data_local ON (data_template_rrd.local_data_id = data_local.id)
		LEFT JOIN data_template_data ON (data_local.id = data_template_data.local_data_id)
		WHERE graph_templates_item.local_graph_id = 0
		AND graph_templates_item.graph_template_id = ?
		ORDER BY graph_templates_item.sequence", array(get_request_var('id'), get_request_var('graph_template_id')));

	form_alternate_row();

	?>
	<td width="50%">
		<font class="textEditTitle"><?php print __('Associated Graph Items');?></font><br>
		<?php print __('Select the graph items that you want to accept user input for.');?>
	</td>
	<td>
	<?php
	$i = 0; $any_selected_item = '';
	if (sizeof($item_list)) {
		foreach ($item_list as $item) {
			if ($item['graph_template_input_id'] == '') {
				$old_value = '';
			}else{
				$old_value = 'on';
				$any_selected_item = $item['graph_templates_item_id'];
			}

			if ($graph_item_types{$item['graph_type_id']} == 'GPRINT') {
				$start_bold = '';
				$end_bold = '';
			}else{
				$start_bold = '<strong>';
				$end_bold = '</strong>';
			}

			$name = "$start_bold Item #" . ($i+1) . ': ' . $graph_item_types{$item['graph_type_id']} . ' (' . $consolidation_functions{$item['consolidation_function_id']} . ")$end_bold";
			form_checkbox('i_' . $item['graph_templates_item_id'], $old_value, $name, '', '', get_request_var('graph_template_id')); print '<br>';

			$i++;
		}
	}else{
		print "<tr class='tableRow'><td><em>" . __('No Items') . "</em></td></tr>";
	}
	?>
	</td>
	</tr>
	<?php

	form_hidden_box('any_selected_item', $any_selected_item, '');

	html_end_box();

	form_save_button('graph_templates.php?action=template_edit&id=' . get_request_var('graph_template_id'));
}