feat: add ErrorPage widget to handle error display

firka/lib/main.dart

@@ -1,129 +1,144 @@
-/*
-
-TODO: add license header here, when the code is replaced with actual code, and not flutter's default code
-
-*/
+import 'dart:async';
+import 'package:firka/helpers/db/models/token_model.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:isar/isar.dart';
+import 'package:path_provider/path_provider.dart';
+import 'screens/login/login_screen.dart';
+import 'screens/debug/debug_screen.dart';
+import 'screens/home/home_screen.dart';
+import 'pages/error/error_page.dart';
 
-void main() {
-  runApp(const MyApp());
+late Isar isar;
+final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
+
+class AppInitialization {
+  final Isar isarInstance;
+  final int tokenCount;
+
+  AppInitialization({
+    required this.isarInstance,
+    required this.tokenCount,
+  });
 }
 
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
+Future<Isar> initDB() async {
+  final dir = await getApplicationDocumentsDirectory();
 
-  // This widget is the root of your application.
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
-        useMaterial3: true,
+  return Isar.open(
+    inspector: true,
+    schemas: [TokenModelSchema],
+    directory: dir.path,
+  );
+}
+
+Future<AppInitialization> initializeApp() async {
+  final isarInstance = await initDB();
+  final tokenCount = isarInstance.tokenModels.count();
+
+  if (kDebugMode) {
+    print('Token count: $tokenCount');
+  }
+  return AppInitialization(
+    isarInstance: isarInstance,
+    tokenCount: tokenCount,
+  );
+}
+
+void main() async {
+
+  //TODO: fix the error handling currently not pushing to the error page
+  runZonedGuarded(() async {
+    WidgetsFlutterBinding.ensureInitialized();
+
+    // Run App Initialization
+    runApp(InitializationScreen());
+
+    if (kDebugMode) {
+      var isar = await initDB();
+      var count = isar.tokenModels.count();
+      print(count);
+    }
+  }, (error, stackTrace) {
+    debugPrint('Caught error: $error');
+    debugPrint('Stack trace: $stackTrace');
+
+    navigatorKey.currentState?.push(
+      MaterialPageRoute(
+        builder: (context) => ErrorPage(exception: error.toString()),
       ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
     );
-  }
+  });
 }
 
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
+class InitializationScreen extends StatelessWidget {
+  InitializationScreen({super.key});
 
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
+  // Place to store the initialization future
+  final Future<AppInitialization> _initialization = initializeApp();
 
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-    return Scaffold(
-      appBar: AppBar(
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          //
-          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-          // action in the IDE, or press "p" in the console), to see the
-          // wireframe for each widget.
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            const Text(
-              'You have pushed the button this many times:',
+    return FutureBuilder<AppInitialization>(
+      future: _initialization,
+      builder: (context, snapshot) {
+        // Check if initialization is complete
+        if (snapshot.connectionState == ConnectionState.done) {
+          if (snapshot.hasError) {
+            // Handle initialization error
+            return Scaffold(
+              body: Center(
+                child: Text(
+                  'Error initializing app: ${snapshot.error}',
+                  style: TextStyle(color: Colors.red),
+                ),
+              ),
+            );
+          }
+
+
+          // Initialization successful, determine which screen to show
+          StatelessWidget screen;
+          if (kDebugMode) {
+            print('Debug mode: using DebugScreen');
+            screen = DebugScreen();
+          } else {
+            if (snapshot.data!.tokenCount == 0) {
+              screen = LoginScreen();
+            } else {
+              screen = HomeScreen();
+            }
+          }
+          return MaterialApp(
+            title: 'Firka',
+            navigatorKey: navigatorKey, // Use the global navigator key
+            theme: ThemeData(
+              primarySwatch: Colors.lightGreen,
+              visualDensity: VisualDensity.adaptivePlatformDensity,
             ),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
+            home: screen,
+            routes: {
+              '/login': (context) => const LoginScreen(),
+              '/debug': (context) => const DebugScreen(),
+            },
+          );
+        }
+
+        return MaterialApp(
+          home: Scaffold(
+            body: Center(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Container(
+                    color: const Color(0xFF7CA021),
+                  )
+                ],
+              ),
             ),
-          ],
-        ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
+          ),
+        );
+      },
     );
   }
 }

firka/lib/pages/error/error_page.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+
+class ErrorPage extends StatelessWidget {
+  final String exception;
+
+  const ErrorPage({super.key, required this.exception});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('Error Occurred'),
+        backgroundColor: Colors.red,
+      ),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(
+              Icons.error,
+              size: 80,
+              color: Colors.red,
+            ),
+            const SizedBox(height: 20),
+            Text(
+              'An error occurred!',
+              style: Theme.of(context).textTheme.headlineMedium?.copyWith(
+                    color: Colors.red,
+                  ),
+            ),
+            const SizedBox(height: 10),
+            Text(
+              'Details:',
+              style: Theme.of(context).textTheme.titleLarge?.copyWith(
+                    fontWeight: FontWeight.bold,
+                  ),
+            ),
+            const SizedBox(height: 10),
+            Text(
+              exception,
+              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                    color: Colors.redAccent,
+                  ),
+            ),
+            const SizedBox(height: 30),
+            ElevatedButton(
+              onPressed: () {
+                Navigator.pop(context);
+              },
+              child: const Text('Go Back'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

firka/lib/screens/debug/debug_screen.dart

@@ -0,0 +1,36 @@
+import 'package:flutter/material.dart';
+
+class DebugScreen extends StatelessWidget {
+  const DebugScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Debug'),
+        centerTitle: true,
+      ),
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            const Text(
+              'Debug Screen',
+              style: TextStyle(
+                fontSize: 24,
+                fontWeight: FontWeight.bold,
+              ),
+            ),
+            const SizedBox(height: 20),
+            ElevatedButton(
+              onPressed: () {
+                throw 0 / 0;
+              },
+              child: const Text('Throw Exception'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

firka/lib/screens/home/home_screen.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+
+class HomeScreen extends StatelessWidget {
+  const HomeScreen({super.key});
+  
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Home'),
+        centerTitle: true,
+      ),
+      body: const Center(
+        child: Text(
+          'Home Screen',
+          style: TextStyle(
+            fontSize: 24,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+      ),
+    );
+  }
+}

firka/lib/screens/login/login_screen.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+
+class LoginScreen extends StatelessWidget {
+  const LoginScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Login'),
+        centerTitle: true,
+      ),
+      body: const Center(
+        child: Text(
+          'Login Screen',
+          style: TextStyle(
+            fontSize: 24,
+            fontWeight: FontWeight.bold,
+          ),
+        ),
+      ),
+    );
+  }
+}

firka/pubspec.yaml

@@ -38,7 +38,6 @@ dependencies:
 
   cupertino_icons: ^1.0.8
   flutter_launcher_icons: ^0.14.3
-  flutter_native_splash: ^2.4.5
   dio: ^5.8.0+1
   isar: *isar_version
   isar_flutter_libs: *isar_version
@@ -50,12 +49,6 @@ dev_dependencies:
     sdk: flutter
   flutter_lints: ^5.0.0
 
-flutter_native_splash:
-  color: "#7CA021"
-  image: assets/logos/splash.png
-  android: true
-  ios: true
-
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec

firka/test/widget_test.dart

@@ -1,30 +0,0 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
-import 'package:firka/main.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-
-void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(const MyApp());
-
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
-
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
-
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
-  });
-}
-