import 'package:go_router/go_router.dart';

import '../../features/auth/presentation/login_page.dart';
import '../../features/auth/presentation/register_page.dart';
import '../../features/auth/presentation/forgot_password_page.dart';
import '../../features/auth/presentation/legal_document_page.dart';
import '../../features/auth/presentation/splash_page.dart';
import '../../features/home/presentation/home_page.dart';
import '../../features/home/presentation/home_tab.dart';
import '../../features/messages/presentation/messages_tab.dart';
import '../../features/profile/presentation/profile_tab.dart';
import '../../features/album/presentation/album_page.dart';
import '../../features/alarm/presentation/alarm_page.dart';
import '../../features/contacts/presentation/contacts_page.dart';
import '../../features/apps/presentation/apps_page.dart';

/// 应用路由定义（GoRouter）。
///
/// - /splash  启动页，依据登录态决定首跳
/// - /login /register  认证流程
/// - /home  Shell 路由，承载底部 Tab（首页 / 管理 / 我的）
/// - /album /alarm /contacts /apps  管理页横版菜单进入的子页面（无底部 Tab）
GoRouter buildAppRouter() {
  return GoRouter(
    initialLocation: '/splash',
    routes: [
      GoRoute(
        path: '/splash',
        builder: (context, state) => const SplashPage(),
      ),
      GoRoute(
        path: '/login',
        builder: (context, state) => const LoginPage(),
      ),
      GoRoute(
        path: '/register',
        builder: (context, state) => const RegisterPage(),
      ),
      GoRoute(
        path: '/forgot-password',
        builder: (context, state) => const ForgotPasswordPage(),
      ),
      GoRoute(
        path: '/legal',
        builder: (context, state) =>
            LegalDocumentPage.fromExtra(state.extra),
      ),
      GoRoute(
        path: '/album',
        builder: (context, state) => const AlbumPage(),
      ),
      GoRoute(
        path: '/alarm',
        builder: (context, state) => const AlarmPage(),
      ),
      GoRoute(
        path: '/contacts',
        builder: (context, state) => const ContactsPage(),
      ),
      GoRoute(
        path: '/apps',
        builder: (context, state) => const AppsPage(),
      ),
      StatefulShellRoute.indexedStack(
        builder: (context, state, shell) => HomePage(child: shell),
        branches: [
          StatefulShellBranch(
            routes: [
              GoRoute(
                path: '/home',
                builder: (context, state) => const HomeTab(),
              ),
            ],
          ),
          StatefulShellBranch(
            routes: [
              GoRoute(
                path: '/messages',
                builder: (context, state) => const MessagesTab(),
              ),
            ],
          ),
          StatefulShellBranch(
            routes: [
              GoRoute(
                path: '/profile',
                builder: (context, state) => const ProfileTab(),
              ),
            ],
          ),
        ],
      ),
    ],
  );
}