mirror of
https://github.com/wger-project/flutter.git
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277 lines
8.2 KiB
Dart
277 lines
8.2 KiB
Dart
/*
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* This file is part of wger Workout Manager <https://github.com/wger-project>.
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* Copyright (C) 2020, 2021 wger Team
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*
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* wger Workout Manager is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import 'package:collection/collection.dart';
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import 'package:flutter/widgets.dart';
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import 'package:json_annotation/json_annotation.dart';
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import 'package:logging/logging.dart';
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import 'package:wger/helpers/consts.dart';
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import 'package:wger/helpers/json.dart';
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import 'package:wger/l10n/generated/app_localizations.dart';
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import 'package:wger/models/nutrition/log.dart';
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import 'package:wger/models/nutrition/meal.dart';
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import 'package:wger/models/nutrition/meal_item.dart';
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import 'package:wger/models/nutrition/nutritional_goals.dart';
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import 'package:wger/models/nutrition/nutritional_values.dart';
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part 'nutritional_plan.g.dart';
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@JsonSerializable(explicitToJson: true)
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class NutritionalPlan {
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final _logger = Logger('NutritionalPlan Model');
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@JsonKey(required: true)
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int? id;
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@JsonKey(required: true)
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late String description;
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@JsonKey(
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required: true,
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name: 'creation_date',
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fromJson: utcIso8601ToLocalDate,
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toJson: dateToUtcIso8601,
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)
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late DateTime creationDate;
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@JsonKey(required: true, name: 'start', toJson: dateToYYYYMMDD)
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late DateTime startDate;
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@JsonKey(required: true, name: 'end', toJson: dateToYYYYMMDD)
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late DateTime? endDate;
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@JsonKey(required: true, name: 'only_logging')
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late bool onlyLogging;
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@JsonKey(required: true, name: 'goal_energy')
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late num? goalEnergy;
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@JsonKey(required: true, name: 'goal_protein')
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late num? goalProtein;
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@JsonKey(required: true, name: 'goal_carbohydrates')
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late num? goalCarbohydrates;
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@JsonKey(required: true, name: 'goal_fat')
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late num? goalFat;
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@JsonKey(required: true, name: 'goal_fiber')
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late num? goalFiber;
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@JsonKey(includeFromJson: false, includeToJson: false, defaultValue: [])
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List<Meal> meals = [];
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@JsonKey(includeFromJson: false, includeToJson: false, defaultValue: [])
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List<Log> diaryEntries = [];
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NutritionalPlan({
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this.id,
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required this.description,
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DateTime? creationDate,
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required this.startDate,
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this.endDate,
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this.onlyLogging = false,
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this.goalEnergy,
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this.goalProtein,
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this.goalCarbohydrates,
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this.goalFat,
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this.goalFiber,
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List<Meal>? meals,
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List<Log>? diaryEntries,
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}) : creationDate = creationDate ?? DateTime.now() {
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this.meals = meals ?? [];
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this.diaryEntries = diaryEntries ?? [];
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if (endDate != null && endDate!.isBefore(startDate)) {
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_logger.warning(
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'The end date of a nutritional plan is before the start. Setting to null! '
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'PlanId: $id, startDate: $startDate, endDate: $endDate',
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);
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endDate = null;
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}
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}
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NutritionalPlan.empty() {
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creationDate = DateTime.now();
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startDate = DateTime.now();
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endDate = null;
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description = '';
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onlyLogging = false;
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goalEnergy = null;
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goalProtein = null;
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goalCarbohydrates = null;
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goalFiber = null;
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goalFat = null;
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}
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// Boilerplate
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factory NutritionalPlan.fromJson(Map<String, dynamic> json) => _$NutritionalPlanFromJson(json);
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Map<String, dynamic> toJson() => _$NutritionalPlanToJson(this);
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String getLabel(BuildContext context) {
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return description != '' ? description : AppLocalizations.of(context).nutritionalPlan;
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}
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bool get hasAnyGoals {
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return goalEnergy != null ||
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goalFat != null ||
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goalProtein != null ||
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goalCarbohydrates != null;
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}
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bool get hasAnyAdvancedGoals {
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return goalFiber != null;
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}
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/// Calculations
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///
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/// note that (some of) this is already done on the server. It might be better
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/// to read it from there, but on the other hand we might want to do more locally
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/// so that a mostly offline mode is possible.
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NutritionalGoals get nutritionalGoals {
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// If there are set goals, they take preference over any meals
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if (hasAnyGoals || hasAnyAdvancedGoals) {
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return NutritionalGoals(
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energy: goalEnergy?.toDouble(),
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fat: goalFat?.toDouble(),
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protein: goalProtein?.toDouble(),
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carbohydrates: goalCarbohydrates?.toDouble(),
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fiber: goalFiber?.toDouble(),
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);
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}
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// if there are no set goals and no defined meals, the goals are still undefined
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if (meals.isEmpty) {
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return NutritionalGoals();
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}
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// otherwise, add up all the nutritional values of the meals and use that as goals
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final sumValues = meals.fold(
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NutritionalValues(),
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(a, b) => a + b.plannedNutritionalValues,
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);
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return NutritionalGoals(
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energy: sumValues.energy,
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fat: sumValues.fat,
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protein: sumValues.protein,
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carbohydrates: sumValues.carbohydrates,
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carbohydratesSugar: sumValues.carbohydratesSugar,
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fatSaturated: sumValues.fatSaturated,
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fiber: sumValues.fiber,
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sodium: sumValues.sodium,
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);
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}
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NutritionalValues get loggedNutritionalValuesToday {
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final now = DateTime.now();
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final today = DateTime(now.year, now.month, now.day);
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return logEntriesValues.containsKey(today) ? logEntriesValues[today]! : NutritionalValues();
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}
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NutritionalValues get loggedNutritionalValues7DayAvg {
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final currentDate = DateTime.now();
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final sevenDaysAgo = currentDate.subtract(const Duration(days: 7));
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return diaryEntries
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.where((obj) => obj.datetime.isAfter(sevenDaysAgo))
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.fold(NutritionalValues(), (a, b) => a + b.nutritionalValues) /
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7;
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}
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Map<DateTime, NutritionalValues> get logEntriesValues {
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final out = <DateTime, NutritionalValues>{};
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for (final log in diaryEntries) {
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final date = DateTime(log.datetime.year, log.datetime.month, log.datetime.day);
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if (!out.containsKey(date)) {
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out[date] = NutritionalValues();
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}
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out[date]!.add(log.nutritionalValues);
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}
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return out;
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}
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/// Returns the nutritional values for the given date
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NutritionalValues? getValuesForDate(DateTime date) {
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final values = logEntriesValues;
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final dateKey = DateTime(date.year, date.month, date.day);
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return values.containsKey(dateKey) ? values[dateKey] : null;
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}
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/// Returns the nutritional logs for the given date
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List<Log> getLogsForDate(DateTime date) {
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final List<Log> out = [];
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for (final log in diaryEntries) {
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final dateKey = DateTime(date.year, date.month, date.day);
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final logKey = DateTime(log.datetime.year, log.datetime.month, log.datetime.day);
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if (dateKey == logKey) {
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out.add(log);
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}
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}
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return out;
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}
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/// returns meal items across all meals
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/// deduped by the combination of amount and ingredient ID
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List<MealItem> get dedupMealItems {
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final List<MealItem> out = [];
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for (final meal in meals) {
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for (final mealItem in meal.mealItems) {
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final found = out.firstWhereOrNull(
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(e) => e.amount == mealItem.amount && e.ingredientId == mealItem.ingredientId,
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);
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if (found == null) {
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out.add(mealItem);
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}
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}
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}
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return out;
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}
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/// returns diary entries
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/// deduped by the combination of amount and ingredient ID
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List<Log> get dedupDiaryEntries {
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final out = <Log>[];
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for (final log in diaryEntries) {
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final found = out.firstWhereOrNull(
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(e) => e.amount == log.amount && e.ingredientId == log.ingredientId,
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);
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if (found == null) {
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out.add(log);
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}
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}
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out.sort((a, b) => b.datetime.compareTo(a.datetime));
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return out;
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}
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Meal pseudoMealOthers(String name) {
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return Meal(
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id: PSEUDO_MEAL_ID,
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plan: id,
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name: name,
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diaryEntries: diaryEntries.where((e) => e.mealId == null).toList(),
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);
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}
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}
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