<?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 */
if (!isset($_REQUEST["action"])) { $_REQUEST["action"] = ""; }

switch ($_REQUEST["action"]) {
	case 'save':
		form_save();

		break;
	case 'input_remove':
		input_remove();

		header("Location: graph_templates.php?action=template_edit&id=" . $_GET["graph_template_id"]);
		break;
	case 'input_edit':
		include_once("./include/top_header.php");

		input_edit();

		include_once("./include/bottom_footer.php");
		break;
}

function form_save() {
	if ((isset($_POST["save_component_input"])) && (!is_error_message())) {
		$graph_input_values = array();
		$selected_graph_items = array();

		/* ================= input validation ================= */
		input_validate_input_number(get_request_var_post("graph_template_input_id"));
		input_validate_input_number(get_request_var_post("graph_template_id"));
		/* ==================================================== */
		
		$save["id"] = $_POST["graph_template_input_id"];
		$save["hash"] = get_hash_graph_template($_POST["graph_template_input_id"], "graph_template_input");
		$save["graph_template_id"] = $_POST["graph_template_id"];
		$save["name"] = form_input_validate($_POST["name"], "name", "", false, 3);
		$save["description"] = form_input_validate($_POST["description"], "description", "", true, 3);
		$save["column_name"] = form_input_validate($_POST["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 */
				$db_selected_graph_item = array_rekey(db_fetch_assoc("select graph_template_item_id from graph_template_input_defs where graph_template_input_id=$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("delete from graph_template_input_defs where graph_template_input_id=$graph_template_input_id");

				if (sizeof($selected_graph_items) > 0) {
				foreach ($selected_graph_items as $graph_template_item_id) {
					db_execute("insert into graph_template_input_defs (graph_template_input_id,graph_template_item_id)
						values ($graph_template_input_id,$graph_template_item_id)");

				}
				}
			}else{
				raise_message(2);
			}
		}

		if (is_error_message()) {
			header("Location: graph_templates_inputs.php?action=input_edit&graph_template_input_id=" . (empty($graph_template_input_id) ? $_POST["graph_template_input_id"] : $graph_template_input_id) . "&graph_template_id=" . $_POST["graph_template_id"]);
			exit;
		}else{
			header("Location: graph_templates.php?action=template_edit&id=" . $_POST["graph_template_id"]);
			exit;
		}
	}
}

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

function input_remove() {
	/* ================= input validation ================= */
	input_validate_input_number(get_request_var("id"));
	input_validate_input_number(get_request_var("graph_template_id"));
	/* ==================================================== */

	if ((read_config_option("deletion_verification") == "on") && (!isset($_GET["confirm"]))) {
		include("./include/top_header.php");
		form_confirm("Are You Sure?", "Are you sure you want to delete the input item <strong>'" . htmlspecialchars(db_fetch_cell("select name from graph_template_input where id=" . $_GET["id"]), ENT_QUOTES) . "'</strong>? NOTE: Deleting this item will NOT affect graphs that use this template.", htmlspecialchars("graph_templates.php?action=template_edit&id=" . $_GET["graph_template_id"]), htmlspecialchars("graph_templates_inputs.php?action=input_remove&id=" . $_GET["id"] . "&graph_template_id=" . $_GET["graph_template_id"]));
		include("./include/bottom_footer.php");
		exit;
	}

	if ((read_config_option("deletion_verification") == "") || (isset($_GET["confirm"]))) {
		db_execute("delete from graph_template_input where id=" . $_GET["id"]);
		db_execute("delete from graph_template_input_defs where graph_template_input_id=" . $_GET["id"]);
	}
}

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

	/* ================= input validation ================= */
	input_validate_input_number(get_request_var("id"));
	input_validate_input_number(get_request_var("graph_template_id"));
	/* ==================================================== */

	$header_label = "[edit graph: " . db_fetch_cell("select name from graph_templates where id=" . $_GET["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 (!empty($_GET["id"])) {
		$graph_template_input = db_fetch_row("select * from graph_template_input where id=" . $_GET["id"]);
	}

	html_start_box("<strong>Graph Item Inputs</strong> " . htmlspecialchars($header_label), "100%", "", "3", "center", "");

	draw_edit_form(array(
		"config" => array(),
		"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()), $_GET)
		));

	if (!(isset($_GET["id"]))) { $_GET["id"] = 0; }

	$item_list = db_fetch_assoc("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=" . $_GET["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=" . $_GET["graph_template_id"] . "
		order by graph_templates_item.sequence");

	form_alternate_row();?>
		<td width="50%">
			<font class="textEditTitle">Associated Graph Items</font><br>
			Select the graph items that you want to accept user input for.
		</td>
		<td>
		<?php
		$i = 0; $any_selected_item = "";
		if (sizeof($item_list) > 0) {
		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["graph_template_id"]); print "<br>";

			$i++;
		}
		}else{
			print "<em>No Items</em>";
		}
		?>
		</td>
	</tr>

	<?php
	html_end_box();

	form_hidden_box("any_selected_item", $any_selected_item, "");

	form_save_button("graph_templates.php?action=template_edit&id=" . $_GET["graph_template_id"]);
}
