<?php

/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package        observium
 * @subpackage     graphs
 * @copyright  (C) Adam Armstrong
 *
 */

// Attempt to draw a graph out of DSes we've collected from Munin plugins.
// Reverse engineering ftw!

$scale_min = 0;

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

if ($width > "500") {
    $descr_len = 24;
} else {
    $descr_len = 14;
    $descr_len += round(($width - 230) / 8.2);
}

$mplug['mplug_vlabel'] = nicecase(str_replace('${graph_period}', 'sec', $mplug['mplug_vlabel']));

if ($width > "500") {
    $rrd_options .= " COMMENT:'" . substr(str_pad($mplug['mplug_vlabel'], $descr_len), 0, $descr_len) . "   Current   Average  Maximum\l'";
    $rrd_options .= " COMMENT:'\l'";
} else {
    $rrd_options .= " COMMENT:'" . substr(str_pad($mplug['mplug_vlabel'], $descr_len), 0, $descr_len) . "   Current   Average  Maximum\l'";
}

$i   = 0;
$c_i = 0;
$dbq = dbFetchRows("SELECT * FROM `munin_plugins_ds` WHERE `mplug_id` = ? ORDER BY ds_draw ASC, ds_label ASC", [$mplug['mplug_id']]);

$plugfile = str_replace(".rrd", "", $plugfile);

foreach ($dbq as $ds) {
    $ds_filename = $plugfile . "_" . $ds['ds_name'] . ".rrd";
    $ds_name     = $ds['ds_name'];

    $cmd_def .= " DEF:" . $ds['ds_name'] . "=" . rrdtool_escape($ds_filename) . ":val:AVERAGE";

    if (!empty($ds['ds_cdef'])) {
        $ds_name  = $ds['ds_name'] . "_cdef";
        $cmd_cdef .= " CDEF:" . $ds_name . "=" . $ds['ds_cdef'] . " ";
    }

    if ($ds['ds_graph'] == "yes") {
        if (empty($ds['ds_colour'])) {
            if (!$config['graph_colours']['mixed'][$c_i]) {
                $c_i = 0;
            }
            $colour = $config['graph_colours']['mixed'][$c_i];
            $c_i++;
        } else {
            $colour = $ds['ds_colour'];
        }

        $descr = rrdtool_escape($ds['ds_label'], $descr_len);

        if ($ds['ds_draw'] == "AREASTACK") {
            if ($i == 0) {
                $ds['ds_draw'] = "AREA";
            } else {
                $ds['ds_draw'] = "STACK";
            }
        } elseif (preg_match("/^LINESTACK([0-9\.]*)/", $ds['ds_draw'], $m)) {
            if ($i == 0) {
                $data['ds_draw'] = "LINE$m[1]";
            } else {
                $ds['ds_draw'] = "STACK";
            }
        }
        $cmd_graph .= ' ' . $ds['ds_draw'] . ':' . $ds_name . '#' . $colour . ':"' . $descr . '"';
        $cmd_graph .= ' GPRINT:' . $ds_name . ':LAST:"%6.2lf%s"';
        $cmd_graph .= ' GPRINT:' . $ds_name . ':AVERAGE:"%6.2lf%s"';
        $cmd_graph .= ' GPRINT:' . $ds_name . ':MAX:"%6.2lf%s\\n"';

    }

}

$rrd_options .= $cmd_def . $cmd_cdef . $cmd_graph;

// EOF