<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package    observium
 * @subpackage poller
 * @copyright  (C) 2006-2013 Adam Armstrong, (C) 2013-2021 Observium Limited
 *
 */

$table_rows = array();

// Pre-cache all processors oid
$query = 'SELECT `processor_oid` FROM `processors` WHERE `device_id` = ? AND `processor_oid` REGEXP ? AND `processor_type` != ?';
// wmi excluded, select only valid numeric OIDs like .1.2.3.3 (excluded ucd-old, hr-average)
if ($oid_to_cache = dbFetchColumn($query, array($device['device_id'], '^\.?[0-9]+(\.[0-9]+)+$', 'wmi'))) {
  usort($oid_to_cache, 'compare_numeric_oids'); // correctly sort numeric oids
  print_debug_vars($oid_to_cache);
  $oid_cache = snmp_get_multi_oid($device, $oid_to_cache, $oid_cache, NULL, NULL, OBS_SNMP_ALL_NUMERIC);
  print_debug_vars($oid_cache);
}

$sql  = "SELECT * FROM `processors` WHERE `device_id` = ?";

foreach (dbFetchRows($sql, array($device['device_id'])) as $processor) {
  // echo("Processor " . $processor['processor_descr'] . " ");

  $processor['processor_oid'] = '.' . ltrim($processor['processor_oid'], '.'); // Fix first dot in oid

  $file = $config['install_dir']."/includes/polling/processors/".$processor['processor_type'].".inc.php";
  if (is_file($file)) {
    include($file);
  } elseif (isset($oid_cache[$processor['processor_oid']])) {
    // Use cached OIDs
    $proc = $oid_cache[$processor['processor_oid']];
  } else {
    // Not should be happen, but keep it as last anyway
    $proc = snmp_get_oid($device, $processor['processor_oid']);
  }

  $proc = snmp_fix_numeric($proc);

  if (is_numeric($proc)) {
    if (!$processor['processor_precision']) {
      $processor['processor_precision'] = 1;
    }
    $proc = round($proc / $processor['processor_precision'], 2);
    if ($processor['processor_returns_idle'] == 1) {
      $proc = 100 - $proc;
    } // The OID returns idle value, so we subtract it from 100.
  } else {
    $proc = 0;
  }
  $processor['processor_usage'] = $proc;

  $graphs['processor'] = TRUE;

  // Update StatsD/Carbon
  if ($config['statsd']['enable'] == TRUE) {
    StatsD::gauge(str_replace(".", "_", $device['hostname']).'.'.'processor'.'.'.$processor['processor_type'] . "-" . $processor['processor_index'], $proc);
  }

  // Update RRD
  rrdtool_update_ng($device, 'processor', array('usage' => $proc), $processor['processor_type'] . "-" . $processor['processor_index']);

  // Update SQL State
  dbUpdate(array('processor_usage' => $proc, 'processor_polled' => time()), 'processors', '`processor_id` = ?', array($processor['processor_id']));

  // Check alerts
  check_entity('processor', $processor, array('processor_usage' => $proc));

  $table_row = array();
  $table_row[] = $processor['processor_descr'];
  $table_row[] = $processor['processor_type'];
  $table_row[] = $processor['processor_index'];
  $table_row[] = $processor['processor_usage'].'%';
  $table_rows[] = $table_row;
  unset($table_row);

}

$headers = array('%WLabel%n', '%WType%n', '%WIndex%n', '%WUsage%n');
print_cli_table($table_rows, $headers);

// EOF