<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package    observium
 * @subpackage web
 * @copyright  (C) Adam Armstrong
 *
 */

unset($vars['page']);
//r($vars);
// Setup here

//if (isset($_SESSION['widescreen']))
//{
//  $graph_width=1700;
//  $thumb_width=180;
//} else {
$graph_width = 1158;
$thumb_width = 150;
//}

// Timestamps from Graphs page form, convert to common from/to unixtime
if (isset($vars['timestamp_from']) && preg_match(OBS_PATTERN_TIMESTAMP, $vars['timestamp_from'])) {
    $vars['from'] = strtotime($vars['timestamp_from']);
    unset($vars['timestamp_from']);
}
if (isset($vars['timestamp_to']) && preg_match(OBS_PATTERN_TIMESTAMP, $vars['timestamp_to'])) {
    $vars['to'] = strtotime($vars['timestamp_to']);
    unset($vars['timestamp_to']);
}

// Validate rrdtool compatible time string and set to now/day if it's not valid
if (preg_match(OBS_PATTERN_RRDTIME, $vars['to'])) {
    $to = $vars['to'];
} // else { $to     = get_time(); }
if (preg_match(OBS_PATTERN_RRDTIME, $vars['from'])) {
    $from = $vars['from'];
} // else { $from   = get_time('day'); }

preg_match(OBS_PATTERN_GRAPH_TYPE, $vars['type'], $graphtype);

print_debug_vars($graphtype, 1);

$type    = $graphtype['type'];
$subtype = $graphtype['subtype'];

if (is_numeric($vars['device'])) {
    $device = device_by_id_cache($vars['device']);
} elseif (!empty($vars['device'])) {
    $device = device_by_name($vars['device']);
}

if (is_file($config['html_dir'] . "/includes/graphs/" . $type . "/auth.inc.php")) {
    include($config['html_dir'] . "/includes/graphs/" . $type . "/auth.inc.php");
}

if (!$auth) {
    print_error_permission();
    return;
}

// If we have a group_id, assume id was generated by auth.inc.php and unset it. It breaks graph url generation otherwise.
if (isset($vars['group_id'], $vars['id'])) {
    unset($vars['id']);
}

// Print the device header
if (isset($device) && is_array($device)) {
    $args = [];
    if ($type === 'device') {
        // device have own panel, hide on xl
        $args['div-class'] = 'hidden-xl';
    }
    print_device_header($device, $args);
}

// Generate navbar with subtypes
$graph_array           = $vars;
$graph_array['height'] = "60";
$graph_array['width']  = $thumb_width;

// Clear collectd argument forcing axis rendering
if (isset($graph_array['draw_all'])) {
    unset($graph_array['draw_all']);
}

//$graph_array['legend'] = "no";
//$graph_array['to']     = get_time();

$navbar = ['brand' => "Graph", 'class' => "navbar-narrow"];

switch ($type) {
    case 'device':
    case 'sensor':
    case 'cefswitching':
    case 'munin':
        $navbar['options']['graph'] = ['text' => nicecase($type) . ' (' . $subtype . ')',
                                       'url'  => generate_url($vars, ['type' => $type . "_" . $subtype, 'page' => "graphs"])];
        break;
    default:
        # Load our list of available graphtypes for this object
        /// FIXME not all of these are going to be valid
        /// This is terrible. --mike
        /// The future solution is to keep a 'registry' of which graphtypes apply to which entities and devices.
        /// I'm not quite sure if this is going to be too slow. --adama 2013-11-11
        $types = [];
        if ($handle = opendir($config['html_dir'] . "/includes/graphs/" . $type . "/")) {
            while (FALSE !== ($file = readdir($handle))) {
                if ($file != "." && $file != ".." && $file != "auth.inc.php" && $file != "graph.inc.php" && $file != ".auth.swp" && strstr($file, ".inc.php")) {
                    $types[] = str_replace(".inc.php", "", $file);
                }
            }
            closedir($handle);
        }

        foreach ($title_array as $key => $element) {
            $navbar['options'][$key] = $element;
        }

        $navbar['options']['graph'] = ['text' => 'Graph'];

        sort($types);

        foreach ($types as $avail_type) {
            if ($subtype == $avail_type) {
                $navbar['options']['graph']['suboptions'][$avail_type]['class'] = 'active';
                $navbar['options']['graph']['text']                             .= ' (' . $avail_type . ')';
            }
            $navbar['options']['graph']['suboptions'][$avail_type]['text'] = nicecase($avail_type);
            $navbar['options']['graph']['suboptions'][$avail_type]['url']  = generate_url($vars, ['type' => $type . "_" . $avail_type, 'page' => "graphs"]);
        }
}


// Adding to the dashboard

if ($_SESSION['userlevel'] > 7) {

    $dashboards = dbFetchRows("SELECT * FROM `dashboards`");
    // FIXME - widget_exists() dashboard_exists(), widget_permitted(), dashboard_permitted(), etc.
    // FIXME - convert this to ajax call, maybe make the code usable on other pages too

    $valid     = ['id', 'group_id', 'idb', 'idc', 'device',
                  'filter', 'counter', 'counter_type', // juniper_firewall
                  'c_plugin', 'c_plugin_instance', 'c_type', 'c_type_instance' // Munin Plugins
    ];
    $add_array = ['type' => $vars['type']];
    if (isset($vars['period']) && is_numeric($vars['period'])) {
        $add_array['period'] = $vars['period'];
    }

    foreach ($vars as $var => $value) {
        if (in_array($var, $valid)) {
            $add_array[$var] = $value;
        }
    }

    $dash_add_key = 'widget_graph_' . $vars['dash_add'] . '_' . var_encode($add_array); // prevent clone widget graphs
    if (isset($vars['dash_add']) && empty($_SESSION[$dash_add_key]) && dashboard_exists($vars['dash_add'])) {
        $widget_id = dbInsert(['dash_id'       => $vars['dash_add'],
                               'widget_config' => safe_json_encode($add_array),
                               'widget_type'   => 'graph',
                               'x'             => 0, 'y' => 99, 'width' => 3, 'height' => 2], 'dash_widgets');
        print_message('Graph widget added to dashboard.', 'info');
        unset($vars['dash_add']);
        session_set_var($dash_add_key, 1);
    }

    if (isset($vars['dash_add_widget'])) {
        dbUpdate(['widget_config' => json_encode($add_array)], 'dash_widgets', '`widget_id` = ?', [$vars['dash_add_widget']]);
        if (dbAffectedRows() == 1) {
            print_message("Widget updated.", 'info');
        }
        unset($vars['dash_add_widget']);
    }

    $navbar['options_right']['export']['text'] = "Export Data";

    foreach ($config['graph_formats'] as $format => $entry) {

        $export_array           = $graph_array;
        $export_array['format'] = $format;

        $navbar['options_right']['export']['suboptions'][$format]['text']      = $entry['descr'];
        $navbar['options_right']['export']['suboptions'][$format]['url']       = generate_graph_url($export_array);
        $navbar['options_right']['export']['suboptions'][$format]['link_opts'] = 'target="_blank"';
    }


    if (!safe_empty($dashboards)) {
        $navbar['options_right']['dash']['text'] = "Add to Dashboard";

        foreach ($dashboards as $dash) {
            $navbar['options_right']['dash']['suboptions'][$dash['dash_id']]['text'] = "Add to " . $dash['dash_name'];
            $navbar['options_right']['dash']['suboptions'][$dash['dash_id']]['url']  = generate_url($vars, ['page' => "graphs", 'dash_add' => $dash['dash_id']]);

            /* Disable adding to specific widgets, the menu doesn't expand.
            $widgets = dbFetchRows("SELECT * FROM `dash_widgets` WHERE `dash_id` = ? AND widget_type = 'graph' AND `widget_config` = ?", array($dash['dash_id'], '[]'));
            foreach($widgets as $widget)
            {
              $navbar['options_right']['dash']['suboptions'][$dash['dash_id']]['entries'][$widget['widget_id']]['text'] = "Add to Widget #".$widget['widget_id']."";
              $navbar['options_right']['dash']['suboptions'][$dash['dash_id']]['entries'][$widget['widget_id']]['url'] = generate_url($vars, array('page' => "graphs", 'dash_add_widget' => $widget['widget_id']));
            }
            */
        }

    }
}

print_navbar($navbar);

// Start form for the custom range.

echo generate_box_open([ 'box-style' => 'padding-bottom: 5px;' ]);

$thumb_array = [
    'sixhour'    => '6 Hours',
    'day'        => '24 Hours',
    'twoday'     => '48 Hours',
    'week'       => 'One Week',
    //'twoweek' => 'Two Weeks',
    'month'      => 'One Month',
    'threemonth' => 'Three Months',
    'year'       => 'One Year',
    'threeyear'  => 'Three Years'
];

$periods = [
    '21600'    => '6 Hours',
    '86400'    => '1 Day',
    '172800'   => '2 Days',
    '604800'   => 'One Week',
    //'1209600'  => 'Two Weeks',
    '2628000'  => 'One Month',
    '7884000'  => 'Three Months',
    '31536000' => 'One Year',
    '94608000' => 'Three Years'
];


echo('<table style="width: 100%; background: transparent;"><tr>');

foreach ($periods as $period => $text) {

    $graph_array['period'] = $period;
    $graph_array['loading'] = 'lazy';

    // We need to remove the from and to variables, as these graphs are built using the period instead
    $remove_vars = ['from', 'to'];
    foreach ($remove_vars as $remove_var) {
        if (isset($graph_array[$remove_var])) {
            unset($graph_array[$remove_var]);
        }
    }

    $link_array         = $graph_array;
    $link_array['page'] = "graphs";
    $link               = generate_url($link_array);

    echo '<td style="text-align: center;">';
    echo '<span class="device-head">' . $text . '</span><br />';
    echo '<a href="' . $link . '">';
    echo generate_graph_tag($graph_array);
    echo '</a>';
    echo '</td>';
}
unset($graph_array['loading']);

echo '</tr></table>';

$graph_array           = $vars;
$graph_array['height'] = "300";
$graph_array['width']  = $graph_width;

echo generate_box_close();

$form_vars = $vars;
unset($form_vars['from'], $form_vars['to'], $form_vars['period']);

$form = [
  'type'          => 'rows',
  'space'         => '5px',
  'submit_by_key' => TRUE,
  'url'           => 'graphs' . generate_url($form_vars)
];

if (is_numeric($vars['from']) && $vars['from'] < 0) {
    $text_from = time() + $vars['from'];
} elseif (is_numeric($vars['from'])) {
    $text_from = date('Y-m-d H:i:s', $vars['from']);
}

if (is_numeric($vars['to']) && $vars['to'] < 0) {
    $text_to = time() + $vars['to'];
} elseif ($vars['to'] === 'now' || $vars['to'] === "NOW") {
    $text_to = time();
} elseif (is_numeric($vars['to'])) {
    $text_to = date('Y-m-d H:i:s', $vars['to']);
}

if ($vars['to'] === 'now' || $vars['to'] === "NOW") {
    $text_to = date('Y-m-d H:i:s');
} elseif (is_numeric($vars['to'])) {
    $text_to = date('Y-m-d H:i:s', $vars['to']);
} else {
    $text_to = $vars['to'];
}

if (isset($vars['period']) && (!isset($vars['from'], $vars['to']))) {
    $text_to   = date('Y-m-d H:i:s');
    $text_from = date('Y-m-d H:i:s', time() - $vars['period']);
}

// Datetime Field
$form['row'][0]['timestamp'] = [
    'type'    => 'datetime',
    'grid'    => 10,
    'grid_xs' => 10,
    //'width'       => '70%',
    //'div_class'   => 'text-nowrap col-sm-push-0', // Too hard, will fix later
    //'div_class'   => 'col-lg-10 col-md-10 col-sm-10 col-xs-10',
    'presets' => TRUE,
    'min'     => '2007-04-03 16:06:59',  // Hehe, who will guess what this date/time means? --mike
    // First commit! Though Observium was already 7 months old by that point. --adama
    'max'     => date('Y-m-d 23:59:59'), // Today
    'from'    => $text_from,
    'to'      => $text_to
];

$search_grid = 2;
if ($type === "port") {
    if ($subtype === "bits") {
        $speed_list = ['auto' => 'Autoscale', 'speed' => 'Interface Speed (' . format_bps($port['ifSpeed'], 4, 4) . ')'];
        foreach ($config['graphs']['ports_scale_list'] as $entry) {
            $speed              = (int)unit_string_to_numeric($entry, 1000);
            $speed_list[$entry] = format_bps($speed, 4, 4);
        }
        $form['row'][0]['scale'] = [
            'type'   => 'select',          // Type
            'name'   => 'Scale',           // Displayed title for item
            'grid'   => 2,
            'width'  => '100%',
            'value'  => $vars['scale'] ?? $config['graphs']['ports_scale_default'],
            'values' => $speed_list
        ];
        //reduce timestamp element grid sizes
        $form['row'][0]['timestamp']['grid'] -= 2;
    }
    if (in_array($subtype, [ 'bits', 'percent', 'upkts', 'pktsize' ])) {
        $form['row'][0]['style'] = [
            'type'   => 'select',
            'name'   => 'Graph style',
            'grid'   => 2,
            'width'  => '100%',
            'value'  => $vars['style'] ?? $config['graphs']['style'],
            'values' => [ 'default' => 'Default', 'mrtg' => 'MRTG' ]
        ];
        //reduce timestamp element grid sizes
        $form['row'][0]['timestamp']['grid'] -= 1;
        unset($form['row'][0]['timestamp']['grid_xs']);
        $search_grid = 1;
    }
}

// Update button
$form['row'][0]['update'] = [
    'type'    => 'submit',
    //'name'        => 'Search',
    //'icon'        => 'icon-search',
    //'div_class'   => 'col-lg-2 col-md-2 col-sm-2 col-xs-2',
    'grid'    => $search_grid,
    'grid_xs' => $search_grid > 1 ? $search_grid : 12,
    'right'   => TRUE
];

print_form($form);
unset($form, $speed_list, $speed, $search_grid);

// Run the graph to get data array out of it

$vars                 = array_merge($vars, $graph_array);
$vars['command_only'] = 1;

include($config['html_dir'] . "/includes/graphs/graph.inc.php");

unset($vars['command_only']);

// Print options navbar

$navbar          = [];
$navbar['brand'] = "Options";
$navbar['class'] = "navbar-narrow";

$navbar['options']['legend']          = [ 'text' => 'Show Legend', 'inverse' => TRUE ];
$navbar['options']['title']           = [ 'text' => 'Show Title' ];
$navbar['options']['force_autoscale'] = [ 'text' => 'Force Autoscale' ];
$navbar['options']['previous']        = [ 'text' => 'Graph Previous' ];

if (in_array('alt_y', (array)$graph_return['valid_options'])) {
    $navbar['options']['alt_y'] = [ 'text' => 'Dynamic Y Grid', 'inverse' => TRUE ];
}

if (in_array('95th', (array)$graph_return['valid_options'])) {
    $navbar['options']['95th'] = [ 'text' => '95th %ile', 'inverse' => TRUE ];
}

if (in_array('trend', (array)$graph_return['valid_options'])) {
    $navbar['options']['trend'] = [ 'text' => 'Graph Trend' ];
}
//$navbar['options']['max']      =  array('text' => 'Graph Maximum');

if (in_array('inverse', (array)$graph_return['valid_options'])) {
    $navbar['options']['inverse'] = [ 'text' => 'Invert Graph' ];
}

if (in_array('line_graph', (array)$graph_return['valid_options'])) {
    $navbar['options']['line_graph'] = [ 'text' => 'Line Graph' ];
}

$navbar['options_right']['showcommand'] = ['text' => 'RRD Command'];

foreach ([ 'options' => $navbar['options'], 'options_right' => $navbar['options_right'] ] as $side => $options) {
    foreach ($options as $option => $array) {
        if ($array['inverse']) {
            if (get_var_false($vars[$option] ?? '')) {
                $navbar[$side][$option]['url'] = generate_url($vars, ['page' => "graphs", $option => NULL]);
            } else {
                $navbar[$side][$option]['url']   = generate_url($vars, ['page' => "graphs", $option => 'no']);
                $navbar[$side][$option]['class'] .= " active";
            }
        } else {
            if (get_var_true($vars[$option])) {
                $navbar[$side][$option]['url']   = generate_url($vars, ['page' => "graphs", $option => NULL]);
                $navbar[$side][$option]['class'] .= " active";
            } else {
                $navbar[$side][$option]['url'] = generate_url($vars, ['page' => "graphs", $option => 'yes']);
            }
        }
    }
}

$navbar['options_right']['graph_link'] = ['text' => 'Link to Graph', 'url' => generate_graph_url($graph_array), 'link_opts' => 'target="_blank"'];

print_navbar($navbar);
unset($navbar);

/// End options navbar

echo generate_graph_js_state($graph_array);

echo generate_box_open();
$graph_array['fetchpriority'] = 'high'; // Load the main graph first
echo generate_graph_tag($graph_array);
echo generate_box_close();

if (!empty($graph_return['descr'])) {
    echo generate_box_open(['title' => 'Description', 'padding' => TRUE]);
    echo($graph_return['descr']);
    echo generate_box_close();
}

//r($graph_return);

if (isset($vars['showcommand'])) {
    echo generate_box_open(['title' => 'Performance & Output', 'padding' => TRUE]);
    echo("RRDTool Output: " . escape_html($graph_return['output']) . "<br />
          RRDtool Runtime: " . number_format($graph_return['runtime'], 3) . "s |
          Total time: " . number_format($graph_return['total'], 3) . "s");
    echo generate_box_close();

    echo generate_box_open(['title' => 'RRDTool Command', 'padding' => TRUE]);
    echo escape_html($graph_return['command']);
    echo generate_box_close();

    echo generate_box_open(['title' => 'RRDTool Files Used', 'padding' => TRUE]);
    if (is_array($graph_return['rrds'])) {
        foreach ($graph_return['rrds'] as $key => $val) {
            if (is_array($val)) {
                echo "$key [";
                echo "[" . implode("] [", $val) . "]";
                echo "]<br />";
            } else {
                echo "$val <br />";
            }
        }
    } else {
        echo "No RRD information returned. This may be because the graph module doesn't yet return this data. <br />";
    }
    echo generate_box_close();
}

// EOF