<?php
// transit/admin/login_request.php — الخطوة 1: هاتف المشرف → OTP
// POST: phone

require_once __DIR__ . '/../../core/bootstrap.php';
require_once __DIR__ . '/../functions.php';

// Rate limiting — حد صارم على طلبات OTP
$limiter = new RateLimiter($redis);
$limiter->enforce(RateLimiter::identifier(), 'api');

try { $transit_con = Database::get('transit'); }
catch (Exception $e) { jsonError('Transit service unavailable', 503); }

$rawPhone = filterRequest('phone');
if (!$rawPhone) jsonError('Phone is required');
$phone = normalizePhone($rawPhone);

if (transitIsOtpLocked($phone)) {
    // نفس رسالة النجاح — لا نكشف أن الحساب مقفل
    jsonSuccess(null, 'OTP sent successfully');
}

$phoneEnc = $encryptionHelper->encryptData($phone);
$st = $transit_con->prepare(
    "SELECT a.id, o.contract_status
     FROM transit_org_admins a
     JOIN transit_orgs o ON o.id = a.org_id
     WHERE a.phone = ? AND a.is_active = 1 LIMIT 1"
);
$st->execute([$phoneEnc]);
$admin = $st->fetch();

// لا نكشف إن كان الهاتف موجوداً أم لا — نفس الرد دائماً
if (!$admin || $admin['contract_status'] === 'terminated') {
    jsonSuccess(null, 'OTP sent successfully');
}

transitSendAdminOtp($phone);

jsonSuccess(null, 'OTP sent successfully');