navigation shell using HookWidget

navigation_shell.dart

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:go_router/go_router.dart';

import 'package:userinterface/core/custom_hooks/use_create_state_notifier.dart';
import 'package:userinterface/core/custom_hooks/use_state_notifier.dart';
import 'package:userinterface/core/navigation/model_views/app_navigation_state.dart';
import 'package:userinterface/core/navigation/models/current_route.dart';

const bool _debug = kDebugMode && true;

/// For interacting with [Go Router] one writes
/// a navigation shell. Since Flex Scaffold makes
/// use of state via State Notifier we do not have
/// to use StatefulShellRoute which translates to
/// an easier time implementing screen transitions.
///
/// If we are using provider style DI than its a
/// Consumer like widget, if using service locator
/// DI its a HookWWidget as watch_it has noting to
/// hook up state notifiers.
class NavigationShell extends HookWidget {
  const NavigationShell({super.key, required this.body});

  final Widget body;

  @override
  Widget build(BuildContext context) {
    // non-widget-di way using hooks
    final notifier = useCreateStateNotifier(() => CurrentRouteStateNotifier());
    final state = useStateNotifier(notifier);

    final CurrentRoute route = state;

    final String goRouterPath = GoRouterState.of(context).uri.toString();
    if (_debug) debugPrint('LayoutShell: goRouterPath = $goRouterPath');

    return Container();
  }
}