<?php

use LibreNMS\RRD\RrdDefinition;

$name = 'nginx';

if (! empty($agent_data['app'][$name])) {
    $nginx = $agent_data['app'][$name];
} else {
    // Polls nginx statistics from script via SNMP
    $nginx = snmp_get($device, '.1.3.6.1.4.1.8072.1.3.2.3.1.2.5.110.103.105.110.120', '-Ovq');
}
$nginx_data = array_map('rtrim', explode("\n", trim($nginx, '"')));
if (count($nginx_data) !== 5) {
    echo " Incorrect number of datapoints returned from device, skipping\n";

    return;
}

[$active, $reading, $writing, $waiting, $req] = $nginx_data;
d_echo("active: $active reading: $reading writing: $writing waiting: $waiting Requests: $req\n");

$rrd_def = RrdDefinition::make()
    ->addDataset('Requests', 'DERIVE', 0, 125000000000)
    ->addDataset('Active', 'GAUGE', 0, 125000000000)
    ->addDataset('Reading', 'GAUGE', 0, 125000000000)
    ->addDataset('Writing', 'GAUGE', 0, 125000000000)
    ->addDataset('Waiting', 'GAUGE', 0, 125000000000);

$fields = [
    'Requests' => $req,
    'Active'   => $active,
    'Reading'  => $reading,
    'Writing'  => $writing,
    'Waiting'  => $waiting,
];

$tags = [
    'name' => $name,
    'app_id' => $app->app_id,
    'rrd_name' => ['app', $name, $app->app_id],
    'rrd_def' => $rrd_def,
];
data_update($device, 'app', $tags, $fields);
update_application($app, trim($nginx, '"'), $fields);

// Unset the variables we set here
unset($nginx, $active, $reading, $writing, $waiting, $req, $rrd_def, $tags);