add: intro middleware

lib/core/constants/my_constants.dart

@@ -15,5 +15,6 @@ class MyConstants {
   static const String currentLevel = 'CURRENT_LEVEL';
   static const String mainAudioService = 'MAIN_AUDIO_SERVICE';
   static const String effectAudioService = 'EFFECT_AUDIO_SERVICE';
+  static const String firstIntro = 'FIRST_INTRO';
   static const double mainAudioVolume = 0.3;
 }

lib/core/middlewares/my_middlewares.dart

@@ -11,7 +11,7 @@ class MyMiddlewares {
   const MyMiddlewares._internal();
   factory MyMiddlewares() => _i;
 
- static FutureOr<String?> splash(BuildContext context, GoRouterState state) {
+  static FutureOr<String?> splash(BuildContext context, GoRouterState state) {
     final String? firstDownload = LocalStorage.readData(
         key: MyConstants.firstDownload);
     if (firstDownload != 'true') {
@@ -20,4 +20,14 @@ class MyMiddlewares {
       return null;
     }
   }
+
+  static FutureOr<String?> intro(BuildContext context, GoRouterState state) {
+    final String? firstIntro = LocalStorage.readData(
+        key: MyConstants.firstIntro);
+    if (firstIntro == 'true') {
+      return Routes.levelPage;
+    } else {
+      return null;
+    }
+  }
 }

lib/core/routers/my_routes.dart

@@ -47,6 +47,7 @@ GoRouter get appPages => GoRouter(
     GoRoute(
       name: Routes.introPage,
       path: Routes.introPage,
+      redirect: MyMiddlewares.intro,
       builder: (context, state) => BlocProvider(
         create: (context) => IntroBloc(),
         child: const IntroPage(),

lib/features/home/presentation/bloc/home_bloc.dart

@@ -45,7 +45,7 @@ class HomeBloc extends Bloc<HomeEvent, HomeState> {
       orElse: () => TotalDataEntity(),
     );
     if (findData.levels?.isNotEmpty ?? false) {
-      context.pushNamed(Routes.levelPage);
+      context.pushNamed(Routes.introPage);
     } else {
       context.goNamed(Routes.downloadPage);
     }

lib/features/intro/presentation/bloc/intro_bloc.dart

@@ -3,8 +3,10 @@ import 'dart:async';
 import 'package:bloc/bloc.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:go_router/go_router.dart';
+import 'package:hadi_hoda_flutter/core/constants/my_constants.dart';
 import 'package:hadi_hoda_flutter/core/routers/my_routes.dart';
 import 'package:hadi_hoda_flutter/core/utils/context_provider.dart';
+import 'package:hadi_hoda_flutter/core/utils/local_storage.dart';
 import 'package:hadi_hoda_flutter/features/intro/presentation/bloc/intro_event.dart';
 import 'package:hadi_hoda_flutter/features/intro/presentation/bloc/intro_state.dart';
 import 'package:hadi_hoda_flutter/features/intro/presentation/ui/screens/intro_1_screen.dart';
@@ -33,8 +35,11 @@ class IntroBloc extends Bloc<IntroEvent, IntroState> {
   /// ------------Controllers------------
 
   /// ------------Functions------------
-  void goToLevelPage(){
-    ContextProvider.context.go(Routes.levelPage);
+  Future<void> goToLevelPage() async {
+    await LocalStorage.saveData(key: MyConstants.firstIntro, value: 'true');
+    if (ContextProvider.context.mounted) {
+      ContextProvider.context.replaceNamed(Routes.levelPage);
+    }
   }
 
   /// ------------Api Calls------------