<?php
// Admin/transit/org/details.php — تفاصيل وتحليلات مؤسسة واحدة (لفريق سيرو)
// POST/GET: org_id

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); }

$orgId = filterRequest('org_id', 'int');
if (!$orgId) jsonError('org_id is required', 400);

$st = $transit_con->prepare("SELECT * FROM transit_orgs WHERE id=? LIMIT 1");
$st->execute([$orgId]);
$org = $st->fetch();
if (!$org) jsonError('Organization not found', 404);

// فك تشفير هاتف التواصل للعرض الإداري فقط
if (!empty($org['contact_phone'])) {
    $org['contact_phone'] = $encryptionHelper->decryptData($org['contact_phone']) ?: null;
}

// ── العدّادات الأساسية ───────────────────────────────────────
$counts = [
    'drivers_total'    => (int)$transit_con->query("SELECT COUNT(*) FROM transit_drivers WHERE org_id=$orgId")->fetchColumn(),
    'drivers_active'   => (int)$transit_con->query("SELECT COUNT(*) FROM transit_drivers WHERE org_id=$orgId AND status='active'")->fetchColumn(),
    'vehicles_total'   => (int)$transit_con->query("SELECT COUNT(*) FROM transit_vehicles WHERE org_id=$orgId")->fetchColumn(),
    'vehicles_active'  => (int)$transit_con->query("SELECT COUNT(*) FROM transit_vehicles WHERE org_id=$orgId AND is_active=1")->fetchColumn(),
    'routes_total'     => (int)$transit_con->query("SELECT COUNT(*) FROM transit_routes WHERE org_id=$orgId")->fetchColumn(),
    'routes_active'    => (int)$transit_con->query("SELECT COUNT(*) FROM transit_routes WHERE org_id=$orgId AND status='active'")->fetchColumn(),
    'enrollments_active'  => (int)$transit_con->query("SELECT COUNT(*) FROM transit_enrollments WHERE org_id=$orgId AND status='active'")->fetchColumn(),
    'enrollments_pending' => (int)$transit_con->query("SELECT COUNT(*) FROM transit_enrollments WHERE org_id=$orgId AND status='pending'")->fetchColumn(),
];

// ── الرحلات: اليوم / هذا الأسبوع / هذا الشهر / إجمالي ──────────
$today       = date('Y-m-d');
$weekStart   = date('Y-m-d', strtotime('monday this week'));
$monthStart  = date('Y-m-01');

$stTrips = $transit_con->prepare(
    "SELECT
        SUM(trip_date = ?) AS today_count,
        SUM(trip_date >= ?) AS week_count,
        SUM(trip_date >= ?) AS month_count,
        COUNT(*) AS total_count,
        SUM(status='completed') AS completed_count,
        SUM(status='cancelled') AS cancelled_count,
        SUM(status='no_show') AS no_show_count,
        AVG(CASE WHEN status='completed' THEN delay_minutes END) AS avg_delay_minutes,
        SUM(CASE WHEN status='completed' AND started_at IS NOT NULL AND completed_at IS NOT NULL
                 THEN TIMESTAMPDIFF(MINUTE, started_at, completed_at) ELSE 0 END) AS total_minutes_driven
     FROM transit_trips WHERE org_id = ?"
);
$stTrips->execute([$today, $weekStart, $monthStart, $orgId]);
$tripStats = $stTrips->fetch();

$trips = [
    'today'                => (int)($tripStats['today_count'] ?? 0),
    'this_week'            => (int)($tripStats['week_count'] ?? 0),
    'this_month'           => (int)($tripStats['month_count'] ?? 0),
    'total'                => (int)($tripStats['total_count'] ?? 0),
    'completed'            => (int)($tripStats['completed_count'] ?? 0),
    'cancelled'            => (int)($tripStats['cancelled_count'] ?? 0),
    'no_show'              => (int)($tripStats['no_show_count'] ?? 0),
    'avg_delay_minutes'    => round((float)($tripStats['avg_delay_minutes'] ?? 0), 1),
    'total_hours_driven'   => round(((int)($tripStats['total_minutes_driven'] ?? 0)) / 60, 1),
];

// ── الخطوط مع ملخص لكل خط ─────────────────────────────────────
$stRoutes = $transit_con->prepare(
    "SELECT r.id, r.name_ar, r.status, r.distance_km,
            (SELECT COUNT(*) FROM transit_stops s WHERE s.route_id = r.id) AS stops_count,
            (SELECT COUNT(*) FROM transit_trips t WHERE t.route_id = r.id AND t.status='completed') AS completed_trips
     FROM transit_routes r WHERE r.org_id = ? ORDER BY r.name_ar ASC"
);
$stRoutes->execute([$orgId]);
$routes = $stRoutes->fetchAll();

jsonSuccess([
    'org'    => $org,
    'counts' => $counts,
    'trips'  => $trips,
    'routes' => $routes,
]);