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

canada health values

lib/models/nutrient.dart

@@ -0,0 +1,87 @@
+
+
+class Nutrient {
+  final String name;
+  final String unit;
+  final String rdaType;
+  final String? note;
+  final UpperLimit? ul; // nutrient-level UL (optional)
+  final List<LifeStage> lifeStages;
+
+  Nutrient({
+    required this.name,
+    required this.unit,
+    required this.rdaType,
+    this.note,
+    this.ul,
+    required this.lifeStages,
+  });
+
+  factory Nutrient.fromJson(String name, Map<String, dynamic> json) {
+    return Nutrient(
+      name: name,
+      unit: json['unit'],
+      rdaType: json['rda_type'],
+      note: json['note'],
+      ul: (json['ul'] is Map<String, dynamic>) ? UpperLimit.fromJson(json['ul'] as Map<String, dynamic>) : null,
+      lifeStages: (json['life_stages'] as List)
+          .map((stage) => LifeStage.fromJson(stage))
+          .toList(),
+    );
+  }
+}
+
+class LifeStage {
+  final String ageRange;
+  final String sex;
+  final double value;
+  final double? valueMin;
+  final double? valueMax;
+  final double? ul;
+  final String? description;
+
+  LifeStage({
+    required this.ageRange,
+    required this.sex,
+    required this.value,
+    this.valueMin,
+    this.valueMax,
+    this.ul,
+    this.description,
+  });
+
+  factory LifeStage.fromJson(Map<String, dynamic> json) {
+    return LifeStage(
+      ageRange: json['age_range'],
+      sex: json['sex'],
+      value: (json['value'] as num?)?.toDouble() ?? 0.0,
+      valueMin: json['value_min'] != null ? (json['value_min'] as num).toDouble() : null,
+      valueMax: json['value_max'] != null ? (json['value_max'] as num).toDouble() : null,
+      ul: json['ul'] != null ? (json['ul'] as num).toDouble() : null,
+      description: json['description'],
+    );
+  }
+}
+
+class UpperLimit {
+  final double value;
+  final String unit;
+  final String? duration;
+  final String? note;
+
+  const UpperLimit({
+    required this.value,
+    required this.unit,
+    this.duration,
+    this.note,
+  });
+
+  factory UpperLimit.fromJson(Map<String, dynamic> json) {
+    return UpperLimit(
+      value: (json['value'] as num).toDouble(),
+      unit: json['unit'] ?? '',
+      duration: json['duration'],
+      note: json['note'],
+    );
+  }
+}

lib/models/supplement.dart

@@ -2,8 +2,8 @@ import 'dart:convert';
 
 import 'package:uuid/uuid.dart';
 
-import 'ingredient.dart';
 import '../services/database_sync_service.dart';
+import 'ingredient.dart';
 
 class Supplement {
   final int? id;
@@ -69,8 +69,7 @@ class Supplement {
   }
 
   Map<String, dynamic> toMap() {
-    return {
-      'id': id,
+    final map = <String, dynamic>{
       'name': name,
       'brand': brand,
       'ingredients': jsonEncode(ingredients.map((ingredient) => ingredient.toMap()).toList()),
@@ -86,6 +85,12 @@ class Supplement {
       'syncStatus': syncStatus.name,
       'isDeleted': isDeleted ? 1 : 0,
     };
+
+    if (id != null) {
+      map['id'] = id;
+    }
+
+    return map;
   }
 
   factory Supplement.fromMap(Map<String, dynamic> map) {
@@ -133,6 +138,7 @@ class Supplement {
 
   Supplement copyWith({
     int? id,
+    bool setNullId = false,
     String? name,
     String? brand,
     List<Ingredient>? ingredients,
@@ -144,12 +150,13 @@ class Supplement {
     DateTime? createdAt,
     bool? isActive,
     String? syncId,
+    bool newSyncId = false,
     DateTime? lastModified,
     RecordSyncStatus? syncStatus,
     bool? isDeleted,
   }) {
     return Supplement(
-      id: id ?? this.id,
+      id: setNullId ? null : (id ?? this.id),
       name: name ?? this.name,
       brand: brand ?? this.brand,
       ingredients: ingredients ?? this.ingredients,
@@ -160,7 +167,7 @@ class Supplement {
       notes: notes ?? this.notes,
       createdAt: createdAt ?? this.createdAt,
       isActive: isActive ?? this.isActive,
-      syncId: syncId ?? this.syncId,
+      syncId: newSyncId ? null : (syncId ?? this.syncId),
       lastModified: lastModified ?? this.lastModified,
       syncStatus: syncStatus ?? this.syncStatus,
       isDeleted: isDeleted ?? this.isDeleted,