<?php
require_once(__DIR__ . '/../vendor/autoload.php');
$logger = new SimpleLogger\File(__DIR__ . '/../log/simplelogger.log');
$config = require(__DIR__ . '/../config/main.php');
const EVERYTHING_IS_BROKEN = "DEGRADED";

$sendNotification = function () use ($logger, $config) {
    if (array_key_exists("status", $_GET) && array_key_exists("unit_status", $_GET) && array_key_exists("hostname", $_GET)) {
        $status = urldecode($_GET["status"]);
        $unit_status = str_replace("\n", "<br>", urldecode($_GET["unit_status"]));
        $hostname = urldecode($_GET["hostname"]);

        if ($status == EVERYTHING_IS_BROKEN) {
            $logger->info('DEGRADED STATUS. Try to Send Mail');
            $mail = new \PHPMailer\PHPMailer\PHPMailer();
            $mail->IsSMTP();

            $mail->SMTPAuth = true;
            $mail->Host = $config['smtp']['host'];
            $mail->Port = $config['smtp']['port'];
            $mail->Username = $config['smtp']['username'];
            $mail->Password = $config['smtp']['password'];
            $mail->Mailer = "smtp";
            $mail->WordWrap = $config['smtp']['wordwrap'];
            $mail->SMTPSecure = $config['smtp']['smtpsecure'];

            $mail->From = $config['sender']['email'];
            $mail->FromName = $config['sender']['name'];

            if ($config['smtp']['smtpsecure'] == 'tls') {
                $mail->SMTPOptions = [
                    'ssl' => [
                        'verify_peer' => false,
                        'verify_peer_name' => false,
                        'allow_self_signed' => true,
                    ],
                ];
            }
            $mail->AddAddress($config['recipient']['email']);

            $mail->Subject = "RAID Degraded on  {$hostname}";
            $mail->Body = "RAID degradation on {$hostname} <br> Disk Status: <br> {$unit_status}";

            $mail->IsHTML(true);
            $message = '';
            if (!$mail->Send()) {
                $message = "Mailer Error: " . $mail->ErrorInfo;
                $logger->error($message);
            } else {
                $message = "Email has been sent to {$config['recipient']['email']}";
                $logger->info($message);
            }
            echo $message;
        } else {
            $message = 'Wrong status! (Not "' . EVERYTHING_IS_BROKEN . '")';
            echo $message;
            $logger->alert($message);
        }
    } else {
        $message = "Wrong params! (status, unit_status or hostname does not present in GET)";
        echo $message;
        $logger->alert($message);
    }
};

try {
    $logger->info('Request with params ' . json_encode($_REQUEST));
    $logger->info($_SERVER['QUERY_STRING']);
    $sendNotification();
} catch (Exception $e) {
    $logger->error('Error: ' . $e . $message);
}
~