83 lines
2.1 KiB
Dart
83 lines
2.1 KiB
Dart
import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/database/app_database.dart';
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import '../data/places_repository.dart';
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class PlacesState {
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final List<PlaceData> pois;
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final List<Favorite> favorites;
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final bool isLoading;
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final String? error;
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const PlacesState({
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this.pois = const [],
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this.favorites = const [],
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this.isLoading = false,
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this.error,
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});
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PlacesState copyWith({
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List<PlaceData>? pois,
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List<Favorite>? favorites,
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bool? isLoading,
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String? error,
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bool clearError = false,
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}) {
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return PlacesState(
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pois: pois ?? this.pois,
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favorites: favorites ?? this.favorites,
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isLoading: isLoading ?? this.isLoading,
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error: clearError ? null : (error ?? this.error),
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);
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}
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}
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class PlacesNotifier extends Notifier<PlacesState> {
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late PlacesRepository _repository;
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@override
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PlacesState build() {
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_repository = ref.watch(placesRepositoryProvider);
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Future.microtask(_loadFavorites);
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return const PlacesState();
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}
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Future<void> _loadFavorites() async {
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final favorites = await _repository.getAllFavorites();
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state = state.copyWith(favorites: favorites);
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}
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Future<void> loadPoisInViewport({
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required double minLon,
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required double minLat,
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required double maxLon,
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required double maxLat,
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String? category,
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}) async {
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state = state.copyWith(isLoading: true, clearError: true);
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try {
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final pois = await _repository.getPoisInBbox(
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minLon: minLon,
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minLat: minLat,
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maxLon: maxLon,
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maxLat: maxLat,
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category: category,
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);
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state = state.copyWith(pois: pois, isLoading: false);
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} catch (e) {
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state = state.copyWith(isLoading: false, error: 'Could not load places.');
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}
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}
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Future<void> addToFavorites(PlaceData place) async {
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await _repository.addFavorite(place);
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await _loadFavorites();
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}
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Future<void> removeFromFavorites(int id) async {
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await _repository.removeFavorite(id);
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await _loadFavorites();
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}
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}
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final placesProvider =
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NotifierProvider<PlacesNotifier, PlacesState>(PlacesNotifier.new);
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