114 lines
3.0 KiB
Dart
114 lines
3.0 KiB
Dart
import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:kalodings/storage/storage.dart';
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import 'package:uuid/uuid.dart';
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class FoodEntryBloc extends Bloc<FoodEvent, FoodEntryState> {
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final FoodStorage storage;
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FoodEntryBloc(super.initialState, {required this.storage}) {
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on<FoodEntryEvent>(addFoodEntry);
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on<FoodDeletionEvent>(deleteFood);
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on<PageChangedEvent>(updateEntries);
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on<DailyKcalLimitUpdated>(persistDailyLimit);
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}
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void addFoodEntry(FoodEntryEvent event, Emitter<FoodEntryState> emit) async {
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FoodEntryState newState = FoodEntryState.from(state);
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newState.addEntry(event.entry);
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await storage.writeEntriesForDate(event.date, newState.foodEntries);
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emit(newState);
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}
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void deleteFood(FoodDeletionEvent event, Emitter<FoodEntryState> emit) async {
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state.foodEntries.removeWhere((entry) => entry.id == event.entryID);
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await storage.writeEntriesForDate(event.date, state.foodEntries);
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emit(FoodEntryState.from(state));
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}
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void updateEntries(
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PageChangedEvent event, Emitter<FoodEntryState> emit) async {
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var entries = await storage.getEntriesForDate(event.changedToDate);
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var limit = await storage.readLimit();
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var newState = FoodEntryState(foodEntries: entries, kcalLimit: limit);
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emit(newState);
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}
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void persistDailyLimit(
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DailyKcalLimitUpdated event, Emitter<FoodEntryState> emit) async {
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await storage.updateLimit(event.kcal);
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emit(FoodEntryState(foodEntries: state.foodEntries, kcalLimit: event.kcal));
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}
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void getDailyLimit(
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DailyKcalLimitUpdated event, Emitter<FoodEntryState> emit) async {}
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}
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class FoodEvent {}
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class FoodEntryEvent extends FoodEvent {
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final FoodEntry entry;
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final DateTime date;
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FoodEntryEvent({required this.entry, required this.date});
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}
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class FoodDeletionEvent extends FoodEvent {
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final String entryID;
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final DateTime date;
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FoodDeletionEvent({required this.entryID, required this.date});
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}
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class PageChangedEvent extends FoodEvent {
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final DateTime changedToDate;
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PageChangedEvent({required this.changedToDate});
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}
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class DailyKcalLimitUpdated extends FoodEvent {
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final double kcal;
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DailyKcalLimitUpdated({required this.kcal});
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}
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class FoodEntryState {
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final List<FoodEntry> foodEntries;
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final double kcalLimit;
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FoodEntryState({required this.foodEntries, required this.kcalLimit});
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factory FoodEntryState.init() {
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return FoodEntryState(foodEntries: [], kcalLimit: 0);
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}
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static from(FoodEntryState state) {
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List<FoodEntry> newList = List.from(state.foodEntries);
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return FoodEntryState(foodEntries: newList, kcalLimit: state.kcalLimit);
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}
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void addEntry(FoodEntry entry) {
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foodEntries.add(entry);
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}
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}
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class FoodEntry {
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final String name;
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final double mass;
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final double kcalPerMass;
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final String id;
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FoodEntry({
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required this.name,
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required this.mass,
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required this.kcalPerMass,
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}) : id = const Uuid().v1();
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@override
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String toString() {
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return '$id,$name,$mass,$kcalPerMass';
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}
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}
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