<?php
/**
 * aruba-instant.inc.php
 *
 * LibreNMS mempools discovery module for Aruba Instant
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package    LibreNMS
 * @link       http://librenms.org
 * @copyright  2019 Timothy Willey
 * @author     Timothy Willey <developer@timothywilley.net>
 */
if ($device['os'] === 'aruba-instant') {
    echo 'aruba-instant-MEMORY-POOL: ';

    $mempool_data = snmpwalk_group($device, 'aiAPSerialNum', 'AI-AP-MIB');
    $mempool_data = snmpwalk_group($device, 'aiAPTotalMemory', 'AI-AP-MIB', 1, $mempool_data);
    $mempool_data = snmpwalk_group($device, 'aiAPMemoryFree', 'AI-AP-MIB', 1, $mempool_data);
    $mempool_data = snmpwalk_group($device, 'aiAPName', 'AI-AP-MIB', 1, $mempool_data);

    d_echo('$mempool_data:'.PHP_EOL);
    d_echo($mempool_data);

    foreach ($mempool_data as $index => $entry) {
        d_echo($entry['aiAPSerialNum'].' '.$entry['aiAPTotalMemory'].' / '.$entry['aiAPMemoryFree'].PHP_EOL);

        $oid_index = implode('.', array_map('hexdec', explode(':', $index)));

        $combined_oid = sprintf('%s::%s.%s', 'AI-AP-MIB', 'aiAPTotalMemory', $oid_index);

        $usage_oid = snmp_translate($combined_oid, 'ALL', 'arubaos', '-On', null);

        $index     = $entry['aiAPSerialNum'];
        $descr     = $entry['aiAPName'] . ' [' . $entry['aiAPSerialNum'] . ']';
        $total     = $entry['aiAPTotalMemory'];
        $free      = $entry['aiAPMemoryFree'];
        $used      = $total - $free;
        $perc      = ($used / $total * 100);

        discover_mempool($valid_mempool, $device, $index, 'aruba-instant', $descr, '1', null, null);
    } //end foreach
} // end if