initial commit

Signed-off-by: Menno van Leeuwen <menno@vleeuwen.me>

lib/screens/home_screen.dart

@@ -0,0 +1,71 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/supplement_provider.dart';
+import 'supplements_list_screen.dart';
+import 'history_screen.dart';
+import 'add_supplement_screen.dart';
+
+class HomeScreen extends StatefulWidget {
+  const HomeScreen({super.key});
+
+  @override
+  State<HomeScreen> createState() => _HomeScreenState();
+}
+
+class _HomeScreenState extends State<HomeScreen> {
+  int _currentIndex = 0;
+
+  final List<Widget> _screens = [
+    const SupplementsListScreen(),
+    const HistoryScreen(),
+  ];
+
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      context.read<SupplementProvider>().initialize();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: _screens[_currentIndex],
+      bottomNavigationBar: BottomNavigationBar(
+        currentIndex: _currentIndex,
+        onTap: (index) {
+          setState(() {
+            _currentIndex = index;
+          });
+        },
+        items: const [
+          BottomNavigationBarItem(
+            icon: Icon(Icons.medication),
+            label: 'Supplements',
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.history),
+            label: 'History',
+          ),
+        ],
+      ),
+      floatingActionButton: _currentIndex == 0
+          ? FloatingActionButton(
+              onPressed: () async {
+                await Navigator.of(context).push(
+                  MaterialPageRoute(
+                    builder: (context) => const AddSupplementScreen(),
+                  ),
+                );
+                // Refresh the list when returning from add screen
+                if (context.mounted) {
+                  context.read<SupplementProvider>().loadSupplements();
+                }
+              },
+              child: const Icon(Icons.add),
+            )
+          : null,
+    );
+  }
+}