actions-test/lib/main.dart

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

import 'package:outbag_app/backend/themes.dart';
import 'package:outbag_app/backend/user.dart';
import 'package:outbag_app/backend/request.dart';
import 'package:outbag_app/screens/room/categories/edit.dart';
import 'package:outbag_app/screens/room/products/edit.dart';
import 'package:outbag_app/screens/room/products/view.dart';

import 'package:outbag_app/tools/fetch_wrapper.dart';

import 'package:outbag_app/screens/home.dart';
import 'package:outbag_app/screens/welcome.dart';
import 'package:outbag_app/screens/auth.dart';

import 'package:outbag_app/screens/room/new.dart';
import 'package:outbag_app/screens/room/join.dart';
import 'package:outbag_app/screens/room/main.dart';
import 'package:outbag_app/screens/room/about/members.dart';
import 'package:outbag_app/screens/room/about/permissions.dart';
import 'package:outbag_app/screens/settings/main.dart';

import 'package:provider/provider.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(const OutbagApp());
}

final GlobalKey<NavigatorState> _rootNavigatorKey =
GlobalKey<NavigatorState>(debugLabel: 'root');
final GlobalKey<NavigatorState> _userShellNavigatorKey =
GlobalKey<NavigatorState>(debugLabel: 'user');

class OutbagApp extends StatefulWidget {
  const OutbagApp({super.key});

  @override
  State<StatefulWidget> createState() => _OutbagAppState();
}

class _OutbagAppState extends State {
  // assume user is logged in
  // unless not userdata is found
  // or the userdata turns out to be wrong
  User? user;

  AppTheme theme = AppTheme.auto;

  void loadTheme() async {
    // load theme
    try {
      final theme = await AppTheme.fromDisk();
      setState(() {
          this.theme = theme;
      });
    } catch (_) {}
  }

  void loadUser() async {
    // load user
    try {
      final user = await User.fromDisk();
      setState(() {
          this.user = user;
      });
    } catch (_) {
      // user unavailable
      // invalid credentials
      // log out
      setState(() {
          user = null;
      });
    }
  }

  @override
  void initState() {
    super.initState();

    WidgetsBinding.instance.addPostFrameCallback((_) async {
        loadTheme();
        loadUser();
    });
  }

  Future<AccountMeta?> fetchInfo(User user) async {
    AccountMeta? info;
    // try to obtain user account information
    // with existing details
    // NOTE: also functions as a way to verify ther data
    await doNetworkRequest(null,
      req: () => postWithCreadentials(
        target: user.server,
        path: 'getMyAccount',
        credentials: user,
        body: {}),
      onOK: (body) async {
        final i = AccountMeta.fromJSON(body['data']);
        info = i;
      },
      onServerErr: (_) {
        info = null;

        setState(() {
            this.user = null;
        });
        return true;
      },
      onNetworkErr: () {
        info = null;
        // user is currently offline
        // approve login,
        // until user goes back offline
        // NOTE TODO: check user data once online
        return true;
    });

    return info;
  }

  @override
  Widget build(BuildContext context) {
    return MultiProvider(
      providers: [
        Provider<AppTheme>.value(value: theme),
      ],
      child: MaterialApp.router(
        title: "Outbag",
        localizationsDelegates: const [
          GlobalMaterialLocalizations.delegate,
          GlobalWidgetsLocalizations.delegate,
          GlobalCupertinoLocalizations.delegate,
          AppLocalizations.delegate
        ],
        supportedLocales: AppLocalizations.supportedLocales,
        themeMode: theme.mode,
        theme: ThemeData(useMaterial3: true, brightness: Brightness.light),
        darkTheme: ThemeData(useMaterial3: true, brightness: Brightness.dark),
        routerConfig: GoRouter(
          navigatorKey: _rootNavigatorKey,
          initialLocation: '/',
          redirect: (context, state) async {
            if (user == null) {
              // prelogin
              if (!state.subloc.startsWith('/welcome')) {
                // prevent unauthorized user from accessing home
                return '/welcome';
              }
            } else {
              // post login
              if (state.subloc.startsWith('/welcome')) {
                // prevent authorized user from accessing /welcome
                return '/';
              }
            }

            return null;
          },
          routes: <RouteBase>[
            // unauthorized routes
            GoRoute(
              name: 'welcome',
              path: '/welcome',
              builder: (context, state) => const WelcomePage(),
              routes: <RouteBase>[
                GoRoute(
                  name: 'signin',
                  path: 'signin',
                  builder: (context, state) =>
                  AuthPage(mode: Mode.signin, refresh: loadUser),
                ),
                GoRoute(
                  name: 'signup',
                  path: 'signup',
                  builder: (context, state) =>
                  AuthPage(mode: Mode.signup, refresh: loadUser),
                ),
                GoRoute(
                  name: 'signup-ota',
                  path: 'signup-ota',
                  builder: (context, state) =>
                  AuthPage(mode: Mode.signupOTA, refresh: loadUser),
                ),
            ]),

            // authorized routes
            ShellRoute(
              navigatorKey: _userShellNavigatorKey,
              builder: (context, state, child) => Provider.value(
                value: user!,
                child: FutureProvider(
                  initialData: null,
                  child: child,
                  create: (context)=>fetchInfo(context.read<User>()),
              )),
              routes: <RouteBase>[
                GoRoute(
                  path: '/',
                  name: 'home',
                  builder: (context, state) => const HomePage(),
                  routes: [
                    GoRoute(
                      name: 'settings',
                      path: 'settings',
                      builder: (context, state) =>
                      SettingsPage(
                        refreshTheme: loadTheme,
                        refreshUser: loadUser
                    )),
                    GoRoute(
                      path: 'join-room',
                      name: 'add-room',
                      builder: (context, state) =>
                      const JoinRoomPage(),
                      routes: <RouteBase>[
                        GoRoute(
                          path: 'new',
                          name: 'new-room',
                          builder: (context, state) => NewRoomPage()),
                    ]),
                    GoRoute(
                      name: 'room',
                      path: 'r/:server/:id',
                      builder: (context, state) => RoomPage(
                        state.params['server'] ?? '',
                        state.params['id'] ?? ''),
                      routes: <RouteBase>[
                        GoRoute(
                          name: 'edit-room',
                          path: 'edit',
                          builder: (context, state) => NewRoomPage(
                            server: state.params['server'] ?? '',
                            tag: state.params['id'] ?? '')),
                        GoRoute(
                          name: 'room-members',
                          path: 'members',
                          builder: (context, state) =>
                          ManageRoomMembersPage(
                            state.params['server'] ?? '',
                            state.params['id'] ?? '')),
                        GoRoute(
                          name: 'room-permissions',
                          path: 'roles',
                          builder: (context, state) =>
                          EditRoomPermissionSetPage(
                            state.params['server'] ?? '',
                            state.params['id'] ?? '')),
                        GoRoute(
                          name: 'new-category',
                          path: 'new-category',
                          builder: (context, state)=>EditCategoryPage(
                            state.params['server'] ?? '',
                            state.params['id'] ?? '')),
                        GoRoute(
                          name: 'edit-category',
                          path: 'edit-category/:category',
                          builder: (context, state)=>EditCategoryPage(
                            state.params['server'] ?? '',
                            state.params['id'] ?? '',
                            id: int.tryParse(state.params['category'] ?? ''))),
                        GoRoute(
                          name: 'new-product',
                          path: 'new-product',
                          builder: (context, state)=>EditProductPage(
                            server: state.params['server'] ?? '',
                            room: state.params['id'] ?? '',)),
                        GoRoute(
                          name: 'view-product',
                          path: 'p/:product',
                          builder: (context, state)=>ViewProductPage(
                            server: state.params['server'] ?? '',
                            room: state.params['id'] ?? '',
                            product: int.tryParse(state.params['product'] ?? '') ?? 0),
                          routes: [
                            GoRoute(
                              name: 'edit-product',
                              path: 'edit',
                              builder: (context, state)=>EditProductPage(
                                server: state.params['server'] ?? '',
                                room: state.params['id'] ?? '',
                                product: int.tryParse(state.params['product'] ?? ''))),
                          ]
                        ),
                    ])
                ]),
            ]),

            // routes that can be accessed
            // with and without an account
            // i.e the about screen
            GoRoute(
              path: '/about',
              name: 'about',
              builder: (context, state) => const Text('About'))
        ]),
    ));
  }
}