functionality to not show login screen, if alr logged in

lib/login.dart

@@ -1,6 +1,9 @@
 import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:http/http.dart' as http;
+import 'package:shared_preferences/shared_preferences.dart';
+import 'dart:io';
+import 'package:path_provider/path_provider.dart';
 
 class AuthService {
   Future<bool> isUserLoggedIn() async {
@@ -10,15 +13,21 @@ class AuthService {
       print(response.body);
       if (response.statusCode == 200) {
         print('all good in the east!');
-        List json = jsonDecode(response.body);
-        print(json[0]);
-        return true;
+        String jsonOuter = jsonDecode(response.body);
+        Map<String, dynamic> json = jsonDecode(jsonOuter);
+        // print(json["is_logged_in"]);
+        return json["is_logged_in"];
       }
     } catch (e) {
       print(e);
     }
     return false;
   }
+
+  Future<bool> loginUser(String email, String password) async {
+    try {} catch (e) {}
+    return false;
+  }
 }
 
 class LoginPage extends StatefulWidget {
@@ -28,6 +37,43 @@ class LoginPage extends StatefulWidget {
   _LoginPageState createState() => _LoginPageState();
 }
 
+class SplashScreen extends StatefulWidget {
+  @override
+  _SplashScreenState createState() => _SplashScreenState();
+}
+
+class _SplashScreenState extends State<SplashScreen> {
+  final AuthService _authService = AuthService();
+  @override
+  void initState() {
+    super.initState();
+    _checkLoginStatus();
+  }
+
+  Future<void> _checkLoginStatus() async {
+    // SharedPreferences prefs = await SharedPreferences.getInstance();
+    // print(prefs);
+    // bool isLoggedIn = prefs.getBool('isLoggedIn') ?? false;
+    bool isLoggedIn = await _authService.isUserLoggedIn();
+    print("is loogeed in $isLoggedIn");
+    if (isLoggedIn) {
+      print('here');
+      Navigator.pushReplacementNamed(context, '/home');
+    } else {
+      Navigator.pushReplacementNamed(context, '/login');
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Scaffold(
+        body: Center(child: CircularProgressIndicator()),
+      ),
+    );
+  }
+}
+
 class _LoginPageState extends State<LoginPage> {
   final AuthService _authService = AuthService();
   // Controllers for capturing user input
@@ -37,7 +83,7 @@ class _LoginPageState extends State<LoginPage> {
   // Key to identify the form
   final _formKey = GlobalKey<FormState>();
 
-  void checkLogin() async {
+  // void checkLogin() async {
   //   try {
   //     var url = Uri.http('127.0.0.1:3001', 'is_logged_in');
   //     var response = await http.get(url);
@@ -48,9 +94,8 @@ class _LoginPageState extends State<LoginPage> {
   //   } catch (e) {
   //     print(e);
   //   }
-    bool isLoggedIn = await _authService.isUserLoggedIn();
-    
-  }
+  //   // bool isLoggedIn = await _authService.isUserLoggedIn();
+  // }
 
   // Function to handle login action
   void _handleLogin() {
@@ -71,16 +116,18 @@ class _LoginPageState extends State<LoginPage> {
 
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
+    return Center(
+      child: Scaffold(
         appBar: AppBar(
           title: const Text('Login Page'),
         ),
-      body: Padding(
+        body: Center(
+          child: SingleChildScrollView(
             padding: const EdgeInsets.all(16.0),
             child: Form(
               key: _formKey,
               child: Align(
-            alignment: Alignment.centerLeft,
+                alignment: Alignment.center,
                 child: Column(
                   mainAxisSize: MainAxisSize.min,
                   crossAxisAlignment: CrossAxisAlignment.start,
@@ -105,6 +152,7 @@ class _LoginPageState extends State<LoginPage> {
                             return 'Please enter your email';
                           }
                           if (!RegExp(r'^\S+@\S+\.\S+$').hasMatch(value)) {
+                            // print(value);
                             return 'Please enter a valid email address';
                           }
                           return null;
@@ -146,7 +194,11 @@ class _LoginPageState extends State<LoginPage> {
                     SizedBox(
                       width: 200,
                       child: ElevatedButton(
-                    onPressed: checkLogin,
+                        // onPressed: checkLogin,
+                        onPressed: () async {
+                          await _authService.isUserLoggedIn();
+                          // print(result);
+                        },
                         child: const Text('checker'),
                       ),
                     )
@@ -155,6 +207,8 @@ class _LoginPageState extends State<LoginPage> {
               ),
             ),
           ),
+        ),
+      ),
     );
   }
 }

lib/main.dart

@@ -22,10 +22,13 @@ class HyM extends StatelessWidget {
       theme: ThemeData.light(),
       title: 'HyM',
       // home: HomeScreen(),
-      home: HomeScreen(),
+      // home: HomeScreen(),
+      initialRoute: "/",
 
       routes: {
+        "/": (context) => SplashScreen(),
         "/login": (context) => const LoginPage(),
+        "/home": (context) => HomeScreen(),
         // "/email": (context) => EmailPage(),
         "/contacts": (context) => ContactsPage(),
       },