<?php
// contact-handler.php
header('Content-Type: application/json; charset=utf-8');

// 0) turn on error display for debugging (remove in production)
ini_set('display_errors', 1);
error_reporting(E_ALL);

try {
    // 1) include your DB connection
    include __DIR__ . "/includes/Conn.php";
    if ($conn->connect_error) {
        throw new Exception("חיבור למסד הנתונים נכשל: " . $conn->connect_error);
    }

    // 2) grab & trim everything
    $name            = trim($_POST['name']            ?? '');
    $email           = trim($_POST['email']           ?? '');
    $tel             = trim($_POST['tel']             ?? '');
    $subject_raw     = trim($_POST['subject']         ?? '');
    $message         = trim($_POST['message']         ?? '');
    $car_id          = trim($_POST['car_id']          ?? '');
    $form_page_title = trim($_POST['form_page_title'] ?? '');
    $form_page_url   = trim($_POST['form_page_url']   ?? '');

    // 3) validation
    $missing = [];
    if ($name    === '') $missing[] = 'name';
    if ($tel     === '') $missing[] = 'tel';
    if ($message === '') $missing[] = 'message';

    if (!empty($missing)) {
        // DEBUG: return what we received
        error_log("Validation failed, missing: " . implode(',', $missing) . " | \$_POST=" . json_encode($_POST, JSON_UNESCAPED_UNICODE));
        throw new Exception("נא למלא את כל השדות הנדרשים");
    }
    

    // 4) build a subject for DB / email
    if ($car_id !== '' && ctype_digit($car_id)) {
        $subject_db = "פנייה לרכב #{$car_id}";
    } else {
        $subject_db = "פנייה כללית מדף יצירת קשר";
    }
    if ($subject_raw !== '') {
        $subject_db .= " | {$subject_raw}";
    }

    // 5) build the DB message blob
    $db_message = $message;
    if ($car_id)          $db_message .= "\n\nמזהה רכב: $car_id";
    if ($form_page_title) $db_message .= "\nכותרת הדף: $form_page_title";
    if ($form_page_url)   $db_message .= "\nכתובת הדף: $form_page_url";

    // 6) insert into contact_us (adjust columns if yours differ)
    $stmt = $conn->prepare(
        "INSERT INTO contact_us (name,  tel, subject, message)
         VALUES (?,        ?,     ?,          ?      )"
    );
    if (!$stmt) {
        throw new Exception("שגיאה בהכנת השאילתה: " . $conn->error);
    }
    $stmt->bind_param('ssss', $name,  $tel, $subject_db, $db_message);
    if (!$stmt->execute()) {
        throw new Exception("שגיאה בשמירת הנתונים: " . $stmt->error);
    }
    $stmt->close();

    // 7) compose the mail body
    $mail_body = "";
    if ($car_id !== '' && ctype_digit($car_id)) {
        // look up title
        $cstmt = $conn->prepare("SELECT title FROM cars_sale_inventory WHERE id = ?");
        if ($cstmt) {
            $cstmt->bind_param("i", $car_id);
            $cstmt->execute();
            $cres = $cstmt->get_result();
            if ($crow = $cres->fetch_assoc()) {
                $mail_body .= "📌 פנייה לגבי רכב #{$car_id}: {$crow['title']}\n";
                $mail_body .= "🔗 https://{$_SERVER['HTTP_HOST']}/car/{$car_id}\n\n";
            }
            $cstmt->close();
        }
    } else {
        $mail_body .= "📨 פנייה כללית מדף יצירת קשר\n\n";
    }

    $mail_body .= "👤 שם:    {$name}\n";
    $mail_body .= "✉️ אימייל: {$email}\n";
    $mail_body .= "📞 טלפון:  {$tel}\n\n";
    if ($subject_raw) {
        $mail_body .= "📝 נושא:   {$subject_raw}\n\n";
    }
    $mail_body .= "💬 הודעה:\n{$message}\n\n";
    if ($form_page_title) {
        $mail_body .= "🏷 כותרת הדף: {$form_page_title}\n";
    }
    if ($form_page_url) {
        $mail_body .= "🔗 כתובת הדף: {$form_page_url}\n";
    }

    // 8) send the email
    $to           = $settings['contact_email'] ?? 'tan.luxurymotors@gmail.com';
    $mail_subject = "פנייה חדשה באתר: " . ($subject_raw ?: 'ללא נושא');
    $headers      = "From: {$name} <{$email}>\r\n"
                  . "Reply-To: {$email}\r\n"
                  . "Content-Type: text/plain; charset=UTF-8\r\n";
    @mail($to, $mail_subject, $mail_body, $headers);

    // 9) done
    echo json_encode(['status'=>'success'], JSON_UNESCAPED_UNICODE);
    exit;
}
catch (Exception $e) {
    http_response_code(400);
    echo json_encode([
        'status' => 'error',
        'error'  => $e->getMessage()
    ], JSON_UNESCAPED_UNICODE);
    exit;
}