feat: adds RDA for intake of vitamins and certain elements based on

canada health values

lib/providers/settings_provider.dart

@@ -10,6 +10,10 @@ enum ThemeOption {
 class SettingsProvider extends ChangeNotifier {
   ThemeOption _themeOption = ThemeOption.system;
 
+  // Profile fields
+  DateTime? _dateOfBirth;
+  String? _gender;
+
   // Time range settings (stored as hours, 0-23)
   int _morningStart = 5;
   int _morningEnd = 10;
@@ -31,6 +35,19 @@ class SettingsProvider extends ChangeNotifier {
 
   ThemeOption get themeOption => _themeOption;
 
+  // Profile getters
+  DateTime? get dateOfBirth => _dateOfBirth;
+  String? get gender => _gender;
+  int? get age {
+    if (_dateOfBirth == null) return null;
+    final now = DateTime.now();
+    int years = now.year - _dateOfBirth!.year;
+    final hasHadBirthday = (now.month > _dateOfBirth!.month) ||
+        (now.month == _dateOfBirth!.month && now.day >= _dateOfBirth!.day);
+    if (!hasHadBirthday) years--;
+    return years;
+  }
+
   // Time range getters
   int get morningStart => _morningStart;
   int get morningEnd => _morningEnd;
@@ -76,6 +93,13 @@ class SettingsProvider extends ChangeNotifier {
     final themeIndex = prefs.getInt('theme_option') ?? 0;
     _themeOption = ThemeOption.values[themeIndex];
 
+    // Load profile fields
+    final dobString = prefs.getString('date_of_birth');
+    if (dobString != null) {
+      _dateOfBirth = DateTime.tryParse(dobString);
+    }
+    _gender = prefs.getString('gender');
+
     // Load time range settings
     _morningStart = prefs.getInt('morning_start') ?? 5;
     _morningEnd = prefs.getInt('morning_end') ?? 10;
@@ -106,6 +130,16 @@ class SettingsProvider extends ChangeNotifier {
     await prefs.setInt('theme_option', option.index);
   }
 
+  Future<void> setDateOfBirthAndGender(DateTime dateOfBirth, String gender) async {
+    _dateOfBirth = dateOfBirth;
+    _gender = gender;
+    notifyListeners();
+
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString('date_of_birth', dateOfBirth.toIso8601String());
+    await prefs.setString('gender', gender);
+  }
+
   Future<void> setTimeRanges({
     required int morningStart,
     required int morningEnd,

lib/providers/supplement_provider.dart

@@ -7,6 +7,7 @@ import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import '../models/supplement.dart';
 import '../models/supplement_intake.dart';
 import '../services/database_helper.dart';
+import '../services/database_sync_service.dart';
 import '../services/notification_service.dart';
 
 class SupplementProvider with ChangeNotifier, WidgetsBindingObserver {
@@ -280,6 +281,28 @@ class SupplementProvider with ChangeNotifier, WidgetsBindingObserver {
     }
   }
 
+  Future<void> duplicateSupplement(int supplementId) async {
+    try {
+      final originalSupplement = await _databaseHelper.getSupplement(supplementId);
+      if (originalSupplement != null) {
+        final newSupplement = originalSupplement.copyWith(
+          setNullId: true, // This will be a new entry
+          newSyncId: true, // Generate a new syncId
+          name: '${originalSupplement.name} (Copy)',
+          createdAt: DateTime.now(),
+          lastModified: DateTime.now(),
+          syncStatus: RecordSyncStatus.pending,
+          isDeleted: false,
+        );
+        await addSupplement(newSupplement);
+      }
+    } catch (e) {
+      if (kDebugMode) {
+        print('SupplementsLog: Error duplicating supplement: $e');
+      }
+    }
+  }
+
   Future<void> deleteSupplement(int id) async {
     try {
       await _databaseHelper.deleteSupplement(id);
@@ -420,6 +443,22 @@ class SupplementProvider with ChangeNotifier, WidgetsBindingObserver {
     return _todayIntakes.where((intake) => intake['supplement_id'] == supplementId).length;
   }
 
+  Map<String, double> get dailyIngredientIntake {
+    final Map<String, double> ingredientIntake = {};
+
+    for (final intake in _todayIntakes) {
+      final supplement = _supplements.firstWhere((s) => s.id == intake['supplement_id']);
+      final unitsTaken = intake['unitsTaken'] as double;
+
+      for (final ingredient in supplement.ingredients) {
+        final currentAmount = ingredientIntake[ingredient.name] ?? 0;
+        ingredientIntake[ingredient.name] = currentAmount + (ingredient.amount * unitsTaken);
+      }
+    }
+
+    return ingredientIntake;
+  }
+
   // Method to manually refresh daily status (useful for testing or manual refresh)
   Future<void> refreshDailyStatus() async {
     if (kDebugMode) {