<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package    observium
 * @subpackage discovery
 * @copyright  (C) 2006-2013 Adam Armstrong, (C) 2013-2022 Observium Limited
 *
 */

$fdp_array = snmpwalk_cache_twopart_oid($device, "snFdpCacheEntry", [], "FOUNDRY-SN-SWITCH-GROUP-MIB", NULL, OBS_SNMP_ALL_MULTILINE);
print_debug_vars($fdp_array);

if ($fdp_array)
{
  foreach ($fdp_array as $ifIndex => $entry)
  {
    $port = get_port_by_index_cache($device, $ifIndex);

    foreach ($entry as $fdp)
    {
      // Remote Hostname
      $remote_hostname  = $fdp['snFdpCacheDeviceId'];

      // Remote address
      $remote_address = hex2ip($fdp['snFdpCacheAddress']);

      // Try find remote device and check if already cached
      $remote_device_id = get_autodiscovery_device_id($device, $remote_hostname, $remote_address);
      if (is_null($remote_device_id) &&                           // NULL - never cached in other rounds
          check_autodiscovery($remote_hostname, $remote_address)) // Check all previous autodiscovery rounds
      {
        // Neighbour never checked, try autodiscovery
        $remote_device_id = autodiscovery_device($remote_hostname, $remote_address, 'FDP', $fdp['snFdpCachePlatform'], $device, $port);
      }

      $remote_port_id = NULL;
      $if = $fdp['snFdpCacheDevicePort'];
      if ($remote_device_id)
      {
        $query = 'SELECT `port_id` FROM `ports` WHERE (`ifName` = ? OR `ifDescr` = ? OR `port_label_short` = ?) AND `device_id` = ? AND `deleted` = ?';
        $remote_port_id = dbFetchCell($query, array($if, $if, $if, $remote_device_id, 0));
        if (!$remote_port_id)
        {
          // Try by IP
          $peer_where = generate_query_values_and($remote_device_id, 'device_id'); // Additional filter for include self IPs
          // Fetch all ports with peer IP and filter by UP
          if ($ids = get_entity_ids_ip_by_network('port', $remote_address, $peer_where))
          {
            $remote_port_id = $ids[0];
            //$port = get_port_by_id_cache($ids[0]);
          }
        }
      }

      $neighbour = [
        'remote_port_id'  => $remote_port_id,
        'remote_hostname' => $remote_hostname,
        'remote_port'     => $fdp['snFdpCacheDevicePort'],
        'remote_platform' => $fdp['snFdpCachePlatform'],
        'remote_version'  => $fdp['snFdpCacheVersion'],
        'remote_address'  => $remote_address,
        //'last_change'     => $last_change
      ];
      discover_neighbour($port, 'fdp', $neighbour);
    }
  }

}

// EOF