<?php

$json = [];
if (isset($_POST['user_name'], $_POST['user_phone'], $_POST['user_msg']))
{
    $_POST['user_name'] = htmlspecialchars($_POST['user_name']);
    $_POST['user_phone'] = htmlspecialchars($_POST['user_phone']);
    $_POST['user_msg'] = htmlspecialchars($_POST['user_msg']);

    $lenName = mb_strlen($_POST['user_name']);
    $lenPhone = mb_strlen($_POST['user_phone']);
    $lenMsg = mb_strlen($_POST['user_msg']);

    if ($lenName > 0 && $lenName <= 40 && $lenPhone > 0 && $lenPhone <= 255 && $lenMsg > 0)
    {
        require __DIR__ . '/vendor/autoload.php';
        $smtpHost = 'smtp.yandex.com';
        $smtpPort = 465;
        $security = 'SSL';
        $smtpUsername = 'mob-pro-test@yandex.ru';
        $smtpPassword = 'mob-pro1234';
        $transport = (new Swift_SmtpTransport($smtpHost, $smtpPort, $security))
            ->setUsername($smtpUsername)
            ->setPassword($smtpPassword);
        $mailer = new Swift_Mailer($transport);
        $from = [$smtpUsername => $_POST['user_name']];
        $to = 'yury_borisov@rambler.ru';
        $subject = 'Feedback Mobile Professionals';
        $body = 'Имя: ' . $_POST['user_name'] . "\nТелефон или почта: " . $_POST['user_phone'] . "\nСообщение: " . $_POST['user_msg'];
        $message = (new Swift_Message($subject))
            ->setFrom($from)
            ->setTo([$to])
            ->setBody($body);
        if (isset($_FILES['file']))
            $message->attach(Swift_Attachment::fromPath($_FILES['file']['tmp_name'])->setFilename($_FILES['file']['name']));
        $result = $mailer->send($message);
        $json['status'] = true;
    }
    else
    {
        $json['status'] = false;
        $json['message'] = 'field in the request failed validation';
    }
}
else
{
    $json['status'] = false;
    $json['message'] = 'invalid parameters';
}

header("Access-Control-Allow-Origin: *");
echo json_encode($json);