<?php
// transit/enrollment/approve.php — المشرف يوافق على طلب عضوية أو يرفضه

require_once __DIR__ . '/../../transit/connect_admin.php';

requireTransitFields(['enrollment_id', 'action']);

$enrollId  = filterRequest('enrollment_id', 'int');
$action    = filterRequest('action');
$expiresAt = filterRequest('expires_at');

if (!in_array($action, ['approve', 'reject'])) jsonError('Invalid action. Use: approve or reject', 400);

$st = $transit_con->prepare(
    "SELECT id, passenger_id, status FROM transit_enrollments WHERE id=? AND org_id=? LIMIT 1"
);
$st->execute([$enrollId, $transit_org_id]);
$enroll = $st->fetch();

if (!$enroll) jsonError('Enrollment not found', 404);
if ($enroll['status'] !== 'pending') jsonError('Enrollment is not pending', 409);

$newStatus = ($action === 'approve') ? 'active' : 'suspended';
$transit_con->prepare(
    "UPDATE transit_enrollments
     SET status=?, verified_at=NOW(), verify_method='manual_admin', expires_at=?
     WHERE id=?"
)->execute([$newStatus, $expiresAt, $enrollId]);

if ($enroll['passenger_id']) {
    if ($action === 'approve') {
        transitCacheEnrollment($transit_org_id, (string)$enroll['passenger_id']);
        transitSendTopicNotification(
            'passenger_' . $enroll['passenger_id'],
            'تم تفعيل عضويتك',
            'يمكنك الآن متابعة باصات جامعتك عبر مواصلاتي',
            ['type' => 'transit_enrollment_approved']
        );
    } else {
        transitDropEnrollment($transit_org_id, (string)$enroll['passenger_id']);
    }
}

jsonSuccess(['enrollment_id' => $enrollId, 'status' => $newStatus]);