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

////// Global PSE Statistics

//
//FOUNDRY-POE-MIB::snAgentPoeGblPowerCapacityTotal.0 = Gauge32: 740000
//FOUNDRY-POE-MIB::snAgentPoeGblPowerCapacityFree.0 = Gauge32: 440000
//FOUNDRY-POE-MIB::snAgentPoeGblPowerAllocationsRequestsHonored.0 = Gauge32: 94

// Stacking:
//FOUNDRY-POE-MIB::snAgentPoeUnitIndex.1 = Gauge32: 1
//FOUNDRY-POE-MIB::snAgentPoeUnitPowerCapacityTotal.1 = Gauge32: 740000
//FOUNDRY-POE-MIB::snAgentPoeUnitPowerCapacityFree.1 = Gauge32: 440000
//FOUNDRY-POE-MIB::snAgentPoeUnitPowerAllocationsRequestsHonored.1 = Gauge32: 94

$oids = snmpwalk_cache_oid($device, 'snAgentPoeUnitEntry', array(), $mib);
if (safe_count($oids)) {
  // Stacked devices
  foreach ($oids as $index => $entry) {
    if ($entry['snAgentPoeUnitPowerCapacityTotal'] == 0) { continue; } // skip zero sensors

    $descr    = "PoE Allocated Power Unit $index";
    $oid_name = 'snAgentPoeUnitPowerCapacityFree';
    $oid_num  = ".1.3.6.1.4.1.1991.1.1.2.14.4.1.1.3.$index";
    $type     = $mib . '-' . $oid_name;
    $value    = $entry[$oid_name]; // What the f**k FOUNDRY, why not just used value??
    $scale    = 0.001;
    $negative = -1;

    // Options
    $options = array('limit_high' => $entry['snAgentPoeUnitPowerCapacityTotal'] * $scale);

    $options['limit_high_warn'] = $options['limit_high'] * 0.9; // Warning at 90% of power limit - FIXME should move to centralized smart calculation function

    // Note, this is not same what we do in unit conversion, since this is not different unit
    // Here used combination with negative scale and negative addition, ie:
    // 740 - 440 === -1 * (-740 + 440)
    $options['sensor_addition'] = $entry['snAgentPoeUnitPowerCapacityTotal'] * $negative;

    // Warning, negative scale here!
    discover_sensor_ng($device, 'power', $mib, $oid_name, $oid_num, $index, NULL, $descr, $negative * $scale, $value, $options);
  }
} else {
  // All other
  $oids = snmp_get_multi_oid($device, 'snAgentPoeGblPowerCapacityTotal.0 snAgentPoeGblPowerCapacityFree.0', array(), $mib);
  if (is_array($oids[0]) && $oids[0]['snAgentPoeGblPowerCapacityTotal'] != 0) {
    $index = 0;
    $entry = $oids[$index];

    $descr    = "PoE Allocated Power";
    $oid_name = 'snAgentPoeGblPowerCapacityFree';
    $oid_num  = ".1.3.6.1.4.1.1991.1.1.2.14.1.2.$index";
    $type     = $mib . '-' . $oid_name;
    $value    = $entry[$oid_name]; // What the f**k FOUNDRY, why not just used value??
    $scale    = 0.001;
    $negative = -1;

    // Options
    $options = array('limit_high' => $entry['snAgentPoeGblPowerCapacityTotal'] * $scale); // Hardcode 0 as lower limit. Low warning limit will be calculated.

    $options['limit_high_warn'] = $options['limit_high'] * 0.9; // Warning at 90% of power limit - FIXME should move to centralized smart calculation function

    // Note, this is not same what we do in unit conversion, since this is not different unit
    // Here used combination with negative scale and negative addition, ie:
    // 740 - 440 === -1 * (-740 + 440)
    $options['sensor_addition'] = $entry['snAgentPoeGblPowerCapacityTotal'] * $negative;

    // Warning, negative scale here!
    discover_sensor_ng($device, 'power', $mib, $oid_name, $oid_num, $index, NULL, $descr, $negative * $scale, $value, $options);
  }
}

print_debug_vars($oids);

////// Per-port Statistics

//FOUNDRY-POE-MIB::snAgentPoePortNumber.4 = INTEGER: 4
//FOUNDRY-POE-MIB::snAgentPoePortControl.4 = INTEGER: disable(2)
//FOUNDRY-POE-MIB::snAgentPoePortWattage.4 = INTEGER: 0
//FOUNDRY-POE-MIB::snAgentPoePortClass.4 = INTEGER: 0
//FOUNDRY-POE-MIB::snAgentPoePortPriority.4 = INTEGER: other(5)
//FOUNDRY-POE-MIB::snAgentPoePortConsumed.4 = INTEGER: 0
//FOUNDRY-POE-MIB::snAgentPoePortType.4 = STRING:

//FOUNDRY-POE-MIB::snAgentPoePortNumber.9 = INTEGER: 9
//FOUNDRY-POE-MIB::snAgentPoePortControl.9 = INTEGER: enable(3)
//FOUNDRY-POE-MIB::snAgentPoePortWattage.9 = INTEGER: 30000
//FOUNDRY-POE-MIB::snAgentPoePortClass.9 = INTEGER: 0
//FOUNDRY-POE-MIB::snAgentPoePortPriority.9 = INTEGER: low(3)
//FOUNDRY-POE-MIB::snAgentPoePortConsumed.9 = INTEGER: 2723
//FOUNDRY-POE-MIB::snAgentPoePortType.9 = STRING: 802.3af

$oids = snmpwalk_cache_oid($device, 'snAgentPoePortEntry', array(), $mib);

print_debug_vars($oids);

foreach ($oids as $index => $entry)
{
  if ($entry['snAgentPoePortControl'] == 'disable' ||
      (($entry['snAgentPoePortPriority'] == 'other' || $entry['snAgentPoePortType'] == 'n/a') &&
       $entry['snAgentPoePortConsumed'] == 0)) // && empty($entry['snAgentPoePortType'])))
  {
    // Skip PoE disabled ports
    continue;
  }

  $options = array('entPhysicalIndex' => $index);
  $port    = get_port_by_ifIndex($device['device_id'], $index);
  // print_vars($port);

  if (is_array($port))
  {
    $entry['ifDescr']           = $port['port_label'];
    $options['measured_class']  = 'port';
    $options['measured_entity'] = $port['port_id'];
    $options['entPhysicalIndex_measured'] = $port['ifIndex'];
  } else {
    $entry['ifDescr'] = "Port $index";
  }

  $descr    = $entry['ifDescr'] . ' PoE Power';
  $oid_name = 'snAgentPoePortConsumed';
  $oid_num  = ".1.3.6.1.4.1.1991.1.1.2.14.2.2.1.6.$index";
  $type     = $mib . '-' . $oid_name;
  $value    = $entry[$oid_name];
  $scale    = 0.001;

  // Limits
  $options['limit_high'] = $entry['snAgentPoePortWattage'] * $scale;
  if ($options['limit_high'] > 0)
  {
    $options['limit_high_warn'] = $options['limit_high'] * 0.9; // Warning at 90% of power limit - FIXME should move to centralized smart calculation function
  } else {
    unset($options['limit_high']);
  }
  discover_sensor_ng($device, 'power', $mib, $oid_name, $oid_num, $index, NULL, $descr, $scale, $value, $options);
}

// EOF