<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2015 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/                                                   |
 +-------------------------------------------------------------------------+
*/

$guest_account = true;
include('./include/auth.php');

/* set default action */
if (!isset($_REQUEST['action'])) { $_REQUEST['action'] = ''; }

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

		break;
	default:
		// We must exempt ourselves from the page refresh, or else the settings page could update while the user is making changes
		$_SESSION['custom'] = 1;
		top_graph_header();

		unset($_SESSION['custom']);

		settings();

		bottom_footer();
		break;
}

/* --------------------------
    The Save Function
   -------------------------- */

function form_save() {
	global $settings_graphs;

	while (list($tab_short_name, $tab_fields) = each($settings_graphs)) {
		while (list($field_name, $field_array) = each($tab_fields)) {
			/* Check every field with a numeric default value and reset it to default if the inputted value is not numeric  */
			if (isset($field_array['default']) && is_numeric($field_array['default']) && !is_numeric(get_request_var_post($field_name))) {
				$_POST[$field_name] = $field_array['default'];
			}
			if ($field_array['method'] == 'checkbox') {
				if (isset($_POST[$field_name])) {
					db_execute_prepared("REPLACE INTO settings_graphs (user_id,name,value) VALUES (?, ?, 'on')", array($_SESSION['sess_user_id'], $field_name));
				}else{
					db_execute_prepared("REPLACE INTO settings_graphs (user_id,name,value) VALUES (?, ?, '')", array($_SESSION['sess_user_id'], $field_name));
				}
			}elseif ($field_array['method'] == 'checkbox_group') {
				while (list($sub_field_name, $sub_field_array) = each($field_array['items'])) {
					if (isset($_POST[$sub_field_name])) {
						db_execute_prepared("REPLACE INTO settings_graphs (user_id,name,value) VALUES (?, ?, 'on')", array($_SESSION['sess_user_id'], $sub_field_name));
					}else{
						db_execute_prepared("REPLACE INTO settings_graphs (user_id,name,value) VALUES (?, ?, '')", array($_SESSION['sess_user_id'], $sub_field_name));
					}
				}
			}elseif ($field_array['method'] == 'textbox_password') {
				if ($_POST[$field_name] != $_POST[$field_name.'_confirm']) {
					raise_message(4);
					break;
				}elseif (isset($_POST[$field_name])) {
					db_execute_prepared('REPLACE INTO settings_graphs (user_id, name, value) VALUES (?, ?, ?)', array($_SESSION['sess_user_id'], $field_name, get_request_var_post($field_name)));
				}
			}elseif ((isset($field_array['items'])) && (is_array($field_array['items']))) {
				while (list($sub_field_name, $sub_field_array) = each($field_array['items'])) {
					if (isset($_POST[$sub_field_name])) {
						db_execute_prepared('REPLACE INTO settings_graphs (user_id, name, value) values (?, ?, ?)', array($_SESSION['sess_user_id'], $sub_field_name, get_request_var_post($sub_field_name)));
					}
				}
			}else if (isset($_POST[$field_name])) {
				db_execute_prepared('REPLACE INTO settings_graphs (user_id, name, value) values (?, ?, ?)', array($_SESSION['sess_user_id'], $field_name, get_request_var_post($field_name)));
			}
		}
	}

	raise_message(1);

	/* reset local settings cache so the user sees the new settings */
	kill_session_var('sess_graph_config_array');
}

/* --------------------------
    Graph Settings Functions
   -------------------------- */

function settings() {
	global $tabs_graphs, $settings_graphs, $current_user, $graph_views, $current_user;

	$current_user = db_fetch_row_prepared('SELECT * FROM user_auth WHERE id = ?', array($_SESSION['sess_user_id']));

	/* you cannot have per-user graph settings if cacti's user management is not turned on */
	if (read_config_option('auth_method') == 0) {
		raise_message(6);
		display_output_messages();
		return;
	}

	/* Find out whether this user has right here */
	if (!is_view_allowed('graph_settings')) {
		print "<strong><font class='txtErrorTextBox'>YOU DO NOT HAVE RIGHTS TO CHANGE GRAPH SETTINGS</font></strong>";
		bottom_footer();
		exit;
	}

	if (read_config_option('auth_method') != 0) {
		$settings_graphs['tree']['default_tree_id']['sql'] = get_graph_tree_array(true);
	}

	form_start('graph_settings.php');

	html_start_box('<strong>Graph Settings</strong>', '100%', '', '3', 'center', '');

	while (list($tab_short_name, $tab_fields) = each($settings_graphs)) {
		$collapsible = true;

		print "<tr class='spacer tableHeader" . ($collapsible ? ' collapsible':'') . "' id='row_$tab_short_name'><td colspan='2' style='cursor:pointer;' class='tableSubHeaderColumn'>" . $tabs_graphs[$tab_short_name] . ($collapsible ? "<div style='float:right;padding-right:4px;'><i class='fa fa-angle-double-up'></i></div>":"") . "</td></tr>\n";

		$form_array = array();

		while (list($field_name, $field_array) = each($tab_fields)) {
			$form_array += array($field_name => $tab_fields[$field_name]);

			if ((isset($field_array['items'])) && (is_array($field_array['items']))) {
				while (list($sub_field_name, $sub_field_array) = each($field_array['items'])) {
					if (graph_config_value_exists($sub_field_name, $_SESSION['sess_user_id'])) {
						$form_array[$field_name]['items'][$sub_field_name]['form_id'] = 1;
					}

					$form_array[$field_name]['items'][$sub_field_name]['value'] =  db_fetch_cell_prepared('SELECT value FROM settings_graphs WHERE name = ? AND user_id = ?', array($sub_field_name, $_SESSION['sess_user_id']));
				}
			}else{
				if (graph_config_value_exists($field_name, $_SESSION['sess_user_id'])) {
					$form_array[$field_name]['form_id'] = 1;
				}

				$form_array[$field_name]['value'] = db_fetch_cell_prepared('SELECT value FROM settings_graphs WHERE name = ? AND user_id = ?', array($field_name, $_SESSION['sess_user_id']));
			}
		}

		draw_edit_form(
			array(
				'config' => array(
					'no_form_tag' => true
					),
				'fields' => $form_array
			)
		);
	}

	html_end_box();

	form_end();

	?>
	<script type='text/javascript'>
	var themeFonts=<?php print read_config_option('font_method');?>;

	function graphSettings() {
		if (themeFonts == 1) {
				$('#row_fonts').hide();
				$('#row_custom_fonts').hide();
				$('#row_title_size').hide();
				$('#row_title_font').hide();
				$('#row_legend_size').hide();
				$('#row_legend_font').hide();
				$('#row_axis_size').hide();
				$('#row_axis_font').hide();
				$('#row_unit_size').hide();
				$('#row_unit_font').hide();
		}else{
			var custom_fonts = $('#custom_fonts').is(':checked');

			switch(custom_fonts) {
			case true:
				$('#row_fonts').show();
				$('#row_title_size').show();
				$('#row_title_font').show();
				$('#row_legend_size').show();
				$('#row_legend_font').show();
				$('#row_axis_size').show();
				$('#row_axis_font').show();
				$('#row_unit_size').show();
				$('#row_unit_font').show();
				break;
			case false:
				$('#row_fonts').show();
				$('#row_title_size').hide();
				$('#row_title_font').hide();
				$('#row_legend_size').hide();
				$('#row_legend_font').hide();
				$('#row_axis_size').hide();
				$('#row_axis_font').hide();
				$('#row_unit_size').hide();
				$('#row_unit_font').hide();
				break;
			}
		}

		if ($('#timespan_sel').is(':checked')) {
			$('#row_default_rra_id').hide();
			$('#row_default_timespan').show();
			$('#row_default_timeshift').show();
			$('#row_allow_graph_dates_in_future').show();
			$('#row_first_weekdayid').show();
			$('#row_day_shift_start').show();
			$('#row_day_shift_end').show();
		} else {
			$('#row_default_rra_id').show();
			$('#row_default_timespan').hide();
			$('#row_default_timeshift').hide();
			$('#row_allow_graph_dates_in_future').hide();
			$('#row_first_weekdayid').hide();
			$('#row_day_shift_start').hide();
			$('#row_day_shift_end').hide();
		}
	}

	$(function() {
		graphSettings();

		$('#navigation').show();
		$('#navigation_right').show();

		$('input[value="Save"]').click(function(event) {
			event.preventDefault();
			href='<?php  print $_SERVER['HTTP_REFERER'];?>';
			href=href+(href.indexOf('?') > 0 ? '&':'?')+'header=false';
			$.post('graph_settings.php?header=false', $('input, select, textarea').serialize()).done(function(data) {
				document.location='<?php  print $_SERVER['HTTP_REFERER'];?>';
			});
		});

		$('#timespan_sel').change(function() {
			graphSettings();
		});
	});

	</script>
	<?php

	if (isset($_SERVER['HTTP_REFERER'])) {
		$timespan_sel_pos = strpos($_SERVER['HTTP_REFERER'],'&predefined_timespan');
		if ($timespan_sel_pos) {
			$_SERVER['HTTP_REFERER'] = substr($_SERVER['HTTP_REFERER'],0,$timespan_sel_pos);
		}
	}

	$_SESSION['graph_settings_referer'] = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER']:'graph_view.php'); 
	form_hidden_box('save_component_graph_config','1','');
	form_save_button('graph_settings.php', 'save');
}