<?php
// transit/route/add.php — إضافة خط جديد (مسودة)

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

$nameAr = filterRequest('name_ar');
if (!$nameAr) jsonError('name_ar is required');

$direction = filterRequest('direction') ?: 'outbound';
if (!in_array($direction, ['outbound','inbound','circular'])) $direction = 'outbound';

$stops = json_decode(filterRequest('stops') ?? '[]', true) ?: [];

$transit_con->beginTransaction();
try {
    $transit_con->prepare(
        "INSERT INTO transit_routes
         (org_id,name_ar,name_en,direction,polyline,distance_km,duration_min,status,created_by)
         VALUES (?,?,?,?,?,?,?,'draft',?)"
    )->execute([
        $transit_org_id, $nameAr,
        filterRequest('name_en'),
        $direction,
        filterRequest('polyline'),
        filterRequest('distance_km','float'),
        filterRequest('duration_min','int'),
        $transit_admin_id,
    ]);

    $routeId = (int)$transit_con->lastInsertId();

    $insertStop = $transit_con->prepare(
        "INSERT INTO transit_stops
         (route_id,org_id,sequence,name_ar,name_en,latitude,longitude,geofence_radius,eta_offset_min,is_major)
         VALUES (?,?,?,?,?,?,?,?,?,?)"
    );
    foreach ($stops as $i => $s) {
        if (empty($s['lat']) || empty($s['lng']) || empty($s['name_ar'])) continue;
        $insertStop->execute([
            $routeId, $transit_org_id, $i + 1,
            $s['name_ar'], $s['name_en'] ?? null,
            (float)$s['lat'], (float)$s['lng'],
            (int)($s['radius'] ?? 150),
            isset($s['eta_offset_min']) ? (int)$s['eta_offset_min'] : null,
            (int)($s['is_major'] ?? 0),
        ]);
    }

    $transit_con->commit();
} catch (Throwable $e) {
    $transit_con->rollBack();
    appLog('[TRANSIT][ROUTE] ' . $e->getMessage(), 'ERROR');
    jsonError('Failed to save route', 500);
}

jsonSuccess(['route_id' => $routeId, 'stops_added' => count($stops)], 'Route saved as draft');