Start writing the web app

Signed-off-by: Nikolai Rodionov <allanger@posteo.com>

lib/core/router/app_router.dart

@@ -0,0 +1,30 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:go_router/go_router.dart';
+import 'package:softplayer_web/core/tokens/application/tokens_application.dart';
+import 'package:softplayer_web/features/authorization/application/authorization_application.dart';
+import 'package:softplayer_web/features/authorization/presentation/authorization_page.dart';
+import 'package:softplayer_web/features/dashboard/presentation/dashboard_page.dart';
+
+final goRouterProvider = Provider<GoRouter>((ref) {
+  final authState = ref.watch(authorizationControllerProvider);
+  final _tokenCtrl = ref.watch(tokensControllerProvider);
+
+  // If not authorized, redirect to the auth page, otherwise dashboard
+  return GoRouter(
+    initialLocation: '/',
+    redirect: (context, state) {
+      final isAuthorized = authState.requireValue.isAuthorized;
+      if (!isAuthorized) {
+        return "/auth";
+      }
+      return "/";
+    },
+    routes: [
+      GoRoute(path: '/', builder: (context, state) => const DashboardPage()),
+      GoRoute(
+        path: '/auth',
+        builder: (context, state) => const AuthorizationPage(),
+      ),
+    ],
+  );
+});