diameter/lib/models/meal.dart

import 'package:diameter/main.dart';
import 'package:diameter/models/accuracy.dart';
import 'package:diameter/models/meal_category.dart';
import 'package:diameter/models/meal_portion_type.dart';
import 'package:diameter/models/meal_source.dart';
import 'package:diameter/objectbox.g.dart' show Meal_;
import 'package:objectbox/objectbox.dart';

enum PortionCarbsParameter { carbsRatio, portionSize, carbsPerPortion }

@Entity(uid: 382130101578692012)
@Sync()
class Meal {
  static final Box<Meal> box = objectBox.store.box<Meal>();

  // properties
  int id;
  bool deleted;
  @Unique()
  String value;
  double? carbsRatio;
  double? portionSize;
  double? carbsPerPortion;
  int? delayedBolusDuration;
  double? delayedBolusPercentage;
  String? notes;
  String? source;

  // relations
  final mealSource = ToOne<MealSource>();
  final mealCategory = ToOne<MealCategory>();
  final mealPortionType = ToOne<MealPortionType>();
  final portionSizeAccuracy = ToOne<Accuracy>();
  final carbsRatioAccuracy = ToOne<Accuracy>();

  // constructor
  Meal({
    this.id = 0,
    this.deleted = false,
    this.value = '',
    this.carbsRatio,
    this.portionSize,
    this.carbsPerPortion,
    this.delayedBolusDuration,
    this.delayedBolusPercentage,
    this.notes,
    this.source,
  });

  // methods
  static Meal? get(int id) => box.get(id);
  static void put(Meal meal) => box.put(meal);
  
  static List<Meal> getAll() {
    QueryBuilder<Meal> builder = box.query(Meal_.deleted.equals(false))..order(Meal_.value);
    return builder.build().find();
  }
  
  static void remove(int id) {
    final item = box.get(id);
    if (item != null) {
      item.deleted = true;
      box.put(item);
    }
  }

  @override
  String toString() {
    return value;
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = <String, dynamic>{};
    data['id'] = id;
    data['deleted'] = deleted;
    data['value'] = value;
    data['carbsRatio'] = carbsRatio;
    data['portionSize'] = portionSize;
    data['carbsPerPortion'] = carbsPerPortion;
    data['delayedBolusDuration'] = delayedBolusDuration;
    data['delayedBolusPercentage'] = delayedBolusPercentage;
    data['notes'] = notes;
    data['mealSource'] = mealSource.targetId;
    data['mealCategory'] = mealCategory.targetId;
    data['mealPortionType'] = mealPortionType.targetId;
    data['portionSizeAccuracy'] = portionSizeAccuracy.targetId;
    data['carbsRatioAccuracy'] = carbsRatioAccuracy.targetId;
    return data;
  }

  static String? putFromJson(
      Map<String, dynamic> json, bool overrideExisting, String? source) {
    final meal = Meal(
      id: overrideExisting ? json['id'] : 0,
      deleted: json['deleted'] == 'true',
      value: json['value'],
      carbsRatio: json['carbsRatio'],
      portionSize: json['portionSize'],
      carbsPerPortion: json['carbsPerPortion'],
      delayedBolusDuration: json['delayedBolusDuration'],
      delayedBolusPercentage: json['delayedBolusPercentage'],
      notes: json['notes'], 
      source: source,
    );

    meal.mealSource.targetId = json['mealSource'];
    meal.mealCategory.targetId = json['mealCategory'];
    meal.mealPortionType.targetId = json['mealPortionType'];
    meal.portionSizeAccuracy.targetId = json['portionSizeAccuracy'];
    meal.carbsRatioAccuracy.targetId = json['carbsRatioAccuracy'];

    Meal.put(meal);
    return null;
  }
}