import 'package:qhd_prevention/common/route_model.dart';
/// 路由管理
class RouteService {
  static final RouteService _instance = RouteService._internal();
  factory RouteService() => _instance;
  RouteService._internal();

  // 存储所有路由配置
  List<RouteModel> _allRoutes = [];

  // 获取主Tab路由（第一级children）
  List<RouteModel> get mainTabs => _allRoutes.isNotEmpty
      ? _allRoutes.first.children
      : [];

  // 初始化路由配置
  void initializeRoutes(List<dynamic> routeList) {
    _allRoutes = routeList.map((route) => RouteModel.fromJson(route)).toList();
  }

  // 根据路径查找路由
  RouteModel? findRouteByPath(String path) {
    for (final route in _allRoutes) {
      final found = _findRouteRecursive(route, path);
      if (found != null) return found;
    }
    return null;
  }

  RouteModel? _findRouteRecursive(RouteModel route, String path) {
    if (route.path == path) return route;
    for (final child in route.children) {
      final found = _findRouteRecursive(child, path);
      if (found != null) return found;
    }
    return null;
  }

  // 获取某个Tab下的所有可显示的路由（hasMenu为true的叶子节点）
  List<RouteModel> getRoutesForTab(RouteModel tab) {
    final routes = <RouteModel>[];
    _collectLeafRoutes(tab, routes);
    return routes;
  }

  void _collectLeafRoutes(RouteModel route, List<RouteModel> collector) {
    if (route.hasMenu) {
      collector.add(route);
      if (!route.isLeaf) {
        for (final child in route.children) {
          _collectLeafRoutes(child, collector);
        }
      }
    }
  }


}