<?php
/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package    observium
 * @subpackage discovery
 * @copyright  (C) Adam Armstrong
 *
 */

// Keep this os detect here!
// for detect as last turn (when other definitions not detected)

if ($os) {
    return;
}

if (str_starts($sysObjectID, '.1.3.6.1.4.1.8072.3.2.10') ||
    str_starts($sysDescr, 'Linux')) {
    $os = 'linux';
}

if ($os === 'linux') {
    // Now network based checks
    if (str_starts($sysObjectId, [ '.1.3.6.1.4.1.10002.1', '.1.3.6.1.4.1.41112.1.4' ]) ||
        str_contains(snmp_getnext_oid($device, 'dot11manufacturerName', 'IEEE802dot11-MIB'), 'Ubiquiti')) {
        $os   = 'airos';
        if (str_contains(snmp_getnext_oid($device, 'dot11manufacturerProductName', 'IEEE802dot11-MIB'), 'UAP')) {
            $os = 'unifi';
        } elseif (!safe_empty(snmp_get_oid($device, 'fwVersion.1', 'UBNT-AirFIBER-MIB'))) {
            $os = 'airos-af';
        }
        return;
    }

    $sysName = snmp_cache_oid($device, 'sysName.0', 'SNMPv2-MIB');
    if (str_contains($sysDescr, 'OpenWrt') || str_icontains_array($sysName, [ 'OpenWrt', 'rt-is-prober', 'HeartOfGold' ])) {
        $os = 'openwrt';
        return;
    }

    if ($sysObjectID === '.1.3.6.1.4.1.8072.3.2.10') {
        if (preg_match('/^Linux (?!Solar)\S+ \d[\d\.]+ #\d+ .* (aarch64|arm|mips|ppc|i586|i686|x86)/', $sysDescr) &&
            snmp_get_oid($device, 'dot11ResourceTypeIDName.0', 'IEEE802dot11-MIB') === 'RTID') {
            // Linux OpenWrt 3.10.14 #132 SMP Fri Dec 8 10:13:11 KST 2017 mips
            // Linux hostname 4.14.221 #0 Mon Feb 15 15:22:37 2021 armv6l
            // Linux wrt2 5.15.134 #0 SMP Mon Oct 9 21:45:35 2023 aarch64
            $os = 'openwrt';
            return;
        }

        if (snmp_get_oid($device, '.1.3.6.1.4.1.9839.1.2.0') > 0) {
            // NOTE! This is very hard hack for detect some devices connected to Carel pCOweb
            // carel-denco.snmprec:1.3.6.1.4.1.9839.2.1.2.6.0|2|0
            // carel-dimplex.snmprec:1.3.6.1.4.1.9839.2.1.2.6.0|2|-9999
            // carel-crac1.snmprec:1.3.6.1.4.1.9839.2.1.2.6.0|2|425
            // carel-crac2.snmprec:1.3.6.1.4.1.9839.2.1.2.6.0|2|462
            $carel_test = snmp_get_oid($device, '.1.3.6.1.4.1.9839.2.1.2.6.0');
            if ($carel_test > 0 && strlen($carel_test) > 1) {
                $os = 'pcoweb-crac';
                return;
            }

            // carel-denco.snmprec:1.3.6.1.4.1.9839.2.1.2.16.0|2|500
            // carel-dimplex.snmprec:1.3.6.1.4.1.9839.2.1.2.16.0|2|0
            // carel-crac1.snmprec:1.3.6.1.4.1.9839.2.1.2.16.0|2|0
            // carel-crac2.snmprec:1.3.6.1.4.1.9839.2.1.2.16.0|2|0
            $carel_test = snmp_get_oid($device, '.1.3.6.1.4.1.9839.2.1.2.16.0');
            if ($carel_test > 0 && strlen($carel_test) > 1) {
                $os = 'pcoweb-denco';
                return;
            }

            // FIXME. This is also incorrect, but we not have other test units
            // carel-denco.snmprec:1.3.6.1.4.1.9839.2.1.2.3.0|2|180
            // carel-dimplex.snmprec:1.3.6.1.4.1.9839.2.1.2.3.0|2|529
            // carel-crac1.snmprec:1.3.6.1.4.1.9839.2.1.2.3.0|2|0
            // carel-crac2.snmprec:1.3.6.1.4.1.9839.2.1.2.3.0|2|0
            $os = 'pcoweb-chiller';
            return;
        }

        // if (!safe_empty(snmp_get_oid($device, 'upsIdentModel.0', 'UPS-MIB'))) {
        //     $os = 'generic-ups';
        //     return;
        // }
    }
}

// EOF