<?php
$to = "Mahmud@sgsintercool.com";
$subject = "New Job Application Submission";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = strip_tags(trim($_POST["name"]));
    $email = filter_var(trim($_POST["email"]), FILTER_SANITIZE_EMAIL);
    $phone = strip_tags(trim($_POST["phone"]));
    $position = strip_tags(trim($_POST["position"]));
    $experience = strip_tags(trim($_POST["experience"]));
    $message = strip_tags(trim($_POST["message"]));
    if (empty($name) || empty($message) || !filter_var($email, FILTER_VALIDATE_EMAIL)) {
        http_response_code(400);
        echo "يرجى إكمال النموذج والمحاولة مرة أخرى.";
        exit;
    }
    $email_content = "الاسم: $name\n";
    $email_content .= "البريد الإلكتروني: $email\n";
    $email_content .= "رقم الهاتف: $phone\n\n";
    $email_content .= "المنصب المطلوب: $position\n";
    $email_content .= "سنوات الخبرة: $experience\n\n";
    $email_content .= "خطاب التغطية:\n$message\n";
    $email_headers = "From: $name <$email>";
    if (isset($_FILES['cv']) && $_FILES['cv']['error'] == UPLOAD_ERR_OK) {
        $file_name = $_FILES['cv']['name'];
        $file_size = $_FILES['cv']['size'];
        $file_tmp = $_FILES['cv']['tmp_name'];
        $file_type = $_FILES['cv']['type'];
        $allowed_types = ['application/pdf', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'text/csv'];
        if (in_array($file_type, $allowed_types)) {
            $file_content = chunk_split(base64_encode(file_get_contents($file_tmp)));
            $boundary = md5(time());
            $email_headers = "From: $name <$email>\r\n";
            $email_headers .= "MIME-Version: 1.0\r\n";
            $email_headers .= "Content-Type: multipart/mixed; boundary=\"$boundary\"\r\n";
            $email_body = "--$boundary\r\n";
            $email_body .= "Content-Type: text/plain; charset=\"utf-8\"\r\n";
            $email_body .= "Content-Transfer-Encoding: 7bit\r\n\r\n";
            $email_body .= $email_content . "\r\n\r\n";
            $email_body .= "--$boundary\r\n";
            $email_body .= "Content-Type: $file_type; name=\"$file_name\"\r\n";
            $email_body .= "Content-Disposition: attachment; filename=\"$file_name\"\r\n";
            $email_body .= "Content-Transfer-Encoding: base64\r\n\r\n";
            $email_body .= $file_content . "\r\n";
            $email_body .= "--$boundary--";
            $email_content = $email_body;
        }
    }
    if (mail($to, $subject, $email_content, $email_headers)) {
        http_response_code(200);
        echo "شكراً لك! تم تقديم طلبك بنجاح.";
    } else {
        http_response_code(500);
        echo "عذراً! حدث خطأ ولم نتمكن من إرسال رسالتك.";
    }
} else {
    http_response_code(403);
    echo "حدثت مشكلة في تقديم طلبك، يرجى المحاولة مرة أخرى.";
}
?>