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

// Generate some statistics to send along with the version request.
//
// These stats are used to allow us to prioritise development resources
// to target features and devices that are used the most.
/// FIXME. Not used anymore..
function get_instance_stats() {
  $stats = [];

  // Overall Ports/Devices statistics
  $stats['edition'] = OBSERVIUM_EDITION;
  $stats['version'] = OBSERVIUM_VERSION;
  $stats['uuid']    = get_unique_id();

  $stats['devices']       = dbFetchCell("SELECT COUNT(*) FROM devices");
  $stats['ports']         = dbFetchCell("SELECT COUNT(*) FROM ports");

  // Per-feature statistics
  $stats['sensors']       = dbFetchCell("SELECT COUNT(*) FROM `sensors`");
  $stats['statuses']      = dbFetchCell("SELECT COUNT(*) FROM `status`");
  $stats['counters']      = dbFetchCell("SELECT COUNT(*) FROM `counters`");
  $stats['applications']  = dbFetchCell("SELECT COUNT(*) FROM `applications`");
  $stats['bgp']           = dbFetchCell("SELECT COUNT(*) FROM `bgpPeers`");
  $stats['ospf']          = dbFetchCell("SELECT COUNT(*) FROM `ospf_ports`");
  $stats['eigrp']         = dbFetchCell("SELECT COUNT(*) FROM `eigrp_ports`");
  $stats['ipsec_tunnels'] = dbFetchCell("SELECT COUNT(*) FROM `ipsec_tunnels`");
  $stats['munin_plugins'] = dbFetchCell("SELECT COUNT(*) FROM `munin_plugins`");
  $stats['pseudowires']   = dbFetchCell("SELECT COUNT(*) FROM `pseudowires`");
  $stats['slas']          = dbFetchCell("SELECT COUNT(*) FROM `slas`");
  $stats['vrfs']          = dbFetchCell("SELECT COUNT(*) FROM `vrfs`");
  $stats['vminfo']        = dbFetchCell("SELECT COUNT(*) FROM `vminfo`");
  $stats['users']         = dbFetchCell("SELECT COUNT(*) FROM `users`");
  $stats['bills']         = dbFetchCell("SELECT COUNT(*) FROM `bills`");
  $stats['alerts']        = dbFetchCell("SELECT COUNT(*) FROM `alert_table`");
  $stats['alert_tests']   = dbFetchCell("SELECT COUNT(*) FROM `alert_tests`");
  $stats['groups']        = dbFetchCell("SELECT COUNT(*) FROM `groups`");
  $stats['group_members'] = dbFetchCell("SELECT COUNT(*) FROM `group_table`");

  $stats['poller_time']      = dbFetchCell("SELECT SUM(`last_polled_timetaken`) FROM devices");
  $stats['discovery_time']   = dbFetchCell("SELECT SUM(`last_discovered_timetaken`) FROM devices");
  $stats['php_version']      = phpversion();

  $os_text                   = external_exec("DISTROFORMAT=export " . $GLOBALS['config']['install_dir'] . "/scripts/distro");

  foreach (explode("\n", $os_text) as $part) {
    list($a, $b) = explode("=", $part);
    $stats['os'][$a] = $b;
  }

  // sysObjectID for Generic devices
  foreach (dbFetchRows("SELECT `sysObjectID`, COUNT(*) AS `count` FROM `devices` WHERE `os` = 'generic' GROUP BY `sysObjectID`") as $data) {
    $stats['generics'][$data['sysObjectID']] = $data['count'];
  }

  // Per-OS counts
  foreach (dbFetchRows("SELECT COUNT(*) AS `count`, `os` FROM `devices` GROUP BY `os`") as $data) {
    $stats['devicetypes'][$data['os']] = $data['count'];
  }

  // Per-type counts
  foreach (dbFetchRows("SELECT COUNT(*) AS `count`, `type` FROM `devices` GROUP BY `type`") as $data) {
    $stats['types'][$data['type']] = $data['count'];
  }

  // Per-apptype counts
  foreach (dbFetchRows("SELECT COUNT(*) AS `count`, `app_type` FROM `applications` GROUP BY `app_type`") as $data) {
    $stats['app_types'][$data['app_type']] = $data['count'];
  }

  $stats['misc']['max_len']['port_label']       = dbFetchCell("SELECT MAX(LENGTH(`port_label`)) FROM `ports`");
  $stats['misc']['max_len']['port_label_short'] = dbFetchCell("SELECT MAX(LENGTH(`port_label_short`)) FROM `ports`");
  $stats['misc']['max_len']['port_label_base']  = dbFetchCell("SELECT MAX(LENGTH(`port_label_base`)) FROM `ports`");
  $stats['misc']['max_len']['port_label_num']   = dbFetchCell("SELECT MAX(LENGTH(`port_label_num`)) FROM `ports`");

  return $stats;
}

$last_checked = get_obs_attrib('last_versioncheck');

if (!is_numeric($last_checked) || $last_checked < time()-3600 || isset($options['u'])) {
  //$stats = get_instance_stats();
  $stats = array('version' => OBSERVIUM_VERSION);

  // Serialize and base64 encode stats array for transportation
  $stat_base64 = base64_encode(serialize($stats));

  $tags = [ 'stats' => $stat_base64 ];

  // Generate context/options with encoded data
  $ver_options = generate_http_context($config['http_api']['observium_versions'], $tags);

  // API URL
  $url = generate_http_url($config['http_api']['observium_versions'], $tags);

  // Request
  $response = get_http_request($url, $ver_options, 10); // Ratelimit 10/day

  if (test_http_request($config['http_api']['observium_versions'], $response) &&
      $versions = safe_json_decode($response)) {

    print_debug_vars($versions);
    if (OBSERVIUM_EDITION === "community")
    {
      $train = "ce";
    }
    elseif (OBSERVIUM_TRAIN === "stable")
    {
      $train = "stable";
    } else {
      $train = "current"; // this same as rolling
    }

    $latest = $versions[$train];

    set_obs_attrib('latest_ver',      preg_replace('/^0\./', '', $latest['version']));
    set_obs_attrib('latest_rev',      $latest['revision']);
    set_obs_attrib('latest_rev_date', $latest['date']);
  }

  set_obs_attrib('last_versioncheck', time());
}

$latest['revision'] = get_obs_attrib('latest_rev');

if ($latest['revision'] > OBSERVIUM_REV) {
  $latest['version']  = get_obs_attrib('latest_ver');
  $latest['date']     = get_obs_attrib('latest_rev_date');

  print_message("%GThere is a newer revision of Observium available!%n", 'color');
  print_message("%GVersion %r" . $latest['version']."%G (" . format_unixtime(datetime_to_unixtime($latest['date']), 'jS F Y').") is %r". ($latest['revision']-OBSERVIUM_REV) ."%G revisions ahead.%n\n", 'color');
} elseif (isset($options['u']) && $latest['revision'] == OBSERVIUM_REV) {
  print_message("-- Observium is up to date.");
}

unset($latest, $versions, $train, $last_checked, $stats);

// EOF