<?php
// Admin/transit/org/list.php — قائمة كل مؤسسات مواصلاتي (لفريق سيرو)
// GET/POST: country?, type?, contract_status?, search?, page?, per_page?

require_once __DIR__ . '/../../../connect.php';

if ($role !== 'admin' && $role !== 'super_admin') {
    jsonError('Unauthorized: Admin access required', 403);
}

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

$country        = filterRequest('country');
$type           = filterRequest('type');
$contractStatus = filterRequest('contract_status');
$search         = filterRequest('search');
$page           = max(1, (int)(filterRequest('page', 'int') ?? 1));
$perPage        = min(100, max(10, (int)(filterRequest('per_page', 'int') ?? 30)));
$offset         = ($page - 1) * $perPage;

$where  = '1=1';
$params = [];

if ($country) { $where .= ' AND country = ?'; $params[] = strtoupper(substr($country, 0, 2)); }
if ($type)    { $where .= ' AND type = ?'; $params[] = $type; }
if ($contractStatus) { $where .= ' AND contract_status = ?'; $params[] = $contractStatus; }
if ($search)  { $where .= ' AND (name_ar LIKE ? OR name_en LIKE ?)'; $params[] = "%$search%"; $params[] = "%$search%"; }

$countSt = $transit_con->prepare("SELECT COUNT(*) FROM transit_orgs WHERE $where");
$countSt->execute($params);
$total = (int)$countSt->fetchColumn();

$params[] = $perPage;
$params[] = $offset;
$st = $transit_con->prepare(
    "SELECT id, type, country, city, name_ar, name_en, logo_url,
            contract_status, trial_ends_at, created_at
     FROM transit_orgs
     WHERE $where
     ORDER BY created_at DESC
     LIMIT ? OFFSET ?"
);
$st->execute($params);
$orgs = $st->fetchAll();

if ($orgs) {
    $ids = implode(',', array_map('intval', array_column($orgs, 'id')));

    $drivers = $transit_con->query("SELECT org_id, COUNT(*) c FROM transit_drivers WHERE org_id IN ($ids) GROUP BY org_id")
        ->fetchAll(PDO::FETCH_KEY_PAIR);
    $vehicles = $transit_con->query("SELECT org_id, COUNT(*) c FROM transit_vehicles WHERE org_id IN ($ids) GROUP BY org_id")
        ->fetchAll(PDO::FETCH_KEY_PAIR);
    $routes = $transit_con->query("SELECT org_id, COUNT(*) c FROM transit_routes WHERE org_id IN ($ids) AND status='active' GROUP BY org_id")
        ->fetchAll(PDO::FETCH_KEY_PAIR);
    $enrollments = $transit_con->query("SELECT org_id, COUNT(*) c FROM transit_enrollments WHERE org_id IN ($ids) AND status='active' GROUP BY org_id")
        ->fetchAll(PDO::FETCH_KEY_PAIR);

    foreach ($orgs as &$o) {
        $id = $o['id'];
        $o['drivers_count']     = (int)($drivers[$id] ?? 0);
        $o['vehicles_count']    = (int)($vehicles[$id] ?? 0);
        $o['active_routes']     = (int)($routes[$id] ?? 0);
        $o['active_enrollments'] = (int)($enrollments[$id] ?? 0);
    }
    unset($o);
}

jsonSuccess([
    'orgs'       => $orgs,
    'pagination' => ['total' => $total, 'page' => $page, 'per_page' => $perPage],
]);