🎉 Initial Commit

lib/main.dart

@@ -0,0 +1,50 @@
+import 'package:dietary_guard/screens/query.dart';
+import 'package:dietary_guard/screens/settings.dart';
+import 'package:dietary_guard/shells/nav_shell.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:go_router/go_router.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+final router = GoRouter(routes: [
+  ShellRoute(
+    builder: (context, state, child) => NavShell(child: child),
+    routes: [
+      GoRoute(
+        path: "/",
+        name: "query",
+        builder: (context, state) => const QueryScreen(),
+      ),
+      GoRoute(
+        path: "/settings",
+        name: "settings",
+        builder: (context, state) => const SettingsScreen(),
+      ),
+    ],
+  ),
+]);
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return GetMaterialApp.router(
+      title: 'DietaryGuard',
+      routerDelegate: router.routerDelegate,
+      routeInformationParser: router.routeInformationParser,
+      routeInformationProvider: router.routeInformationProvider,
+      backButtonDispatcher: router.backButtonDispatcher,
+      locale: Get.deviceLocale,
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: Colors.green,
+        ),
+        useMaterial3: true,
+      ),
+    );
+  }
+}

lib/screens/query.dart

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+import 'package:flutter/material.dart';
+
+class QueryScreen extends StatelessWidget {
+  const QueryScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const SizedBox();
+  }
+}

lib/screens/settings.dart

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+import 'package:flutter/material.dart';
+
+class SettingsScreen extends StatelessWidget {
+  const SettingsScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Placeholder();
+  }
+}

lib/shells/nav_shell.dart

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+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+
+class Destination {
+  const Destination(this.title, this.page, this.icon);
+  final String title;
+  final String page;
+  final IconData icon;
+}
+
+class NavShell extends StatefulWidget {
+  final Widget child;
+
+  const NavShell({super.key, required this.child});
+
+  @override
+  State<NavShell> createState() => _NavShellState();
+}
+
+class _NavShellState extends State<NavShell> {
+  int _focusDestination = 0;
+
+  final List<Destination> _allDestinations = <Destination>[
+    const Destination('Query', 'query', Icons.search),
+    const Destination('Settings', 'settings', Icons.settings)
+  ];
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: widget.child,
+      bottomNavigationBar: BottomNavigationBar(
+        showUnselectedLabels: false,
+        currentIndex: _focusDestination,
+        items: _allDestinations
+            .map((x) => BottomNavigationBarItem(
+                  icon: Icon(x.icon),
+                  label: x.title,
+                ))
+            .toList(),
+        onTap: (value) {
+          GoRouter.of(context).goNamed(_allDestinations[value].page);
+          setState(() => _focusDestination = value);
+        },
+      ),
+    );
+  }
+}