feat: 초기 프로젝트 설정 및 LunchPick 앱 구현
LunchPick(오늘 뭐 먹Z?) Flutter 앱의 초기 구현입니다. 주요 기능: - 네이버 지도 연동 맛집 추가 - 랜덤 메뉴 추천 시스템 - 날씨 기반 거리 조정 - 방문 기록 관리 - Bluetooth 맛집 공유 - 다크모드 지원 기술 스택: - Flutter 3.8.1+ - Riverpod 상태 관리 - Hive 로컬 DB - Clean Architecture 🤖 Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
JiWoong Sul
341
lib/presentation/providers/recommendation_provider.dart
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341
lib/presentation/providers/recommendation_provider.dart
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:lunchpick/domain/entities/recommendation_record.dart';
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import 'package:lunchpick/domain/entities/restaurant.dart';
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import 'package:lunchpick/domain/repositories/recommendation_repository.dart';
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import 'package:lunchpick/domain/usecases/recommendation_engine.dart';
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import 'package:lunchpick/presentation/providers/di_providers.dart';
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import 'package:lunchpick/presentation/providers/restaurant_provider.dart';
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import 'package:lunchpick/presentation/providers/settings_provider.dart' hide currentLocationProvider, locationPermissionProvider;
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import 'package:lunchpick/presentation/providers/weather_provider.dart';
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import 'package:lunchpick/presentation/providers/location_provider.dart';
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import 'package:lunchpick/presentation/providers/visit_provider.dart';
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import 'package:uuid/uuid.dart';
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/// 추천 기록 목록 Provider
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final recommendationRecordsProvider = StreamProvider<List<RecommendationRecord>>((ref) {
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final repository = ref.watch(recommendationRepositoryProvider);
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return repository.watchRecommendationRecords();
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});
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/// 오늘의 추천 횟수 Provider
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final todayRecommendationCountProvider = FutureProvider<int>((ref) async {
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final repository = ref.watch(recommendationRepositoryProvider);
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return repository.getTodayRecommendationCount();
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});
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/// 추천 설정 모델
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class RecommendationSettings {
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final int daysToExclude;
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final int maxDistanceRainy;
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final int maxDistanceNormal;
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final List<String> selectedCategories;
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RecommendationSettings({
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required this.daysToExclude,
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required this.maxDistanceRainy,
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required this.maxDistanceNormal,
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required this.selectedCategories,
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});
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}
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/// 추천 관리 StateNotifier
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class RecommendationNotifier extends StateNotifier<AsyncValue<Restaurant?>> {
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final RecommendationRepository _repository;
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final Ref _ref;
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final RecommendationEngine _recommendationEngine = RecommendationEngine();
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RecommendationNotifier(this._repository, this._ref) : super(const AsyncValue.data(null));
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/// 랜덤 추천 실행
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Future<void> getRandomRecommendation({
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required double maxDistance,
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required List<String> selectedCategories,
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}) async {
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state = const AsyncValue.loading();
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try {
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// 현재 위치 가져오기
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final location = await _ref.read(currentLocationProvider.future);
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if (location == null) {
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throw Exception('위치 정보를 가져올 수 없습니다');
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}
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// 날씨 정보 가져오기
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final weather = await _ref.read(weatherProvider.future);
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// 사용자 설정 가져오기
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final userSettings = await _ref.read(userSettingsProvider.future);
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// 모든 식당 가져오기
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final allRestaurants = await _ref.read(restaurantListProvider.future);
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// 방문 기록 가져오기
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final allVisitRecords = await _ref.read(visitRecordsProvider.future);
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// 추천 설정 구성
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final config = RecommendationConfig(
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userLatitude: location.latitude,
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userLongitude: location.longitude,
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maxDistance: maxDistance,
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selectedCategories: selectedCategories,
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userSettings: userSettings,
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weather: weather,
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);
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// 추천 엔진 사용
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final selectedRestaurant = await _recommendationEngine.generateRecommendation(
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allRestaurants: allRestaurants,
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recentVisits: allVisitRecords,
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config: config,
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);
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if (selectedRestaurant == null) {
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state = const AsyncValue.data(null);
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return;
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}
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// 추천 기록 저장
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await _saveRecommendationRecord(selectedRestaurant);
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state = AsyncValue.data(selectedRestaurant);
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} catch (e, stack) {
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state = AsyncValue.error(e, stack);
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}
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}
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/// 추천 기록 저장
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Future<void> _saveRecommendationRecord(Restaurant restaurant) async {
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final record = RecommendationRecord(
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id: const Uuid().v4(),
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restaurantId: restaurant.id,
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recommendationDate: DateTime.now(),
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visited: false,
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createdAt: DateTime.now(),
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);
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await _repository.addRecommendationRecord(record);
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}
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/// 추천 후 방문 확인
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Future<void> confirmVisit(String recommendationId) async {
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try {
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await _repository.markAsVisited(recommendationId);
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// 방문 기록도 생성
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final recommendations = await _ref.read(recommendationRecordsProvider.future);
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final recommendation = recommendations.firstWhere((r) => r.id == recommendationId);
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final visitNotifier = _ref.read(visitNotifierProvider.notifier);
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await visitNotifier.createVisitFromRecommendation(
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restaurantId: recommendation.restaurantId,
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recommendationTime: recommendation.recommendationDate,
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);
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} catch (e, stack) {
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state = AsyncValue.error(e, stack);
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}
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}
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/// 추천 기록 삭제
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Future<void> deleteRecommendation(String id) async {
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try {
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await _repository.deleteRecommendationRecord(id);
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} catch (e, stack) {
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state = AsyncValue.error(e, stack);
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}
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}
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}
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/// RecommendationNotifier Provider
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final recommendationNotifierProvider = StateNotifierProvider<RecommendationNotifier, AsyncValue<Restaurant?>>((ref) {
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final repository = ref.watch(recommendationRepositoryProvider);
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return RecommendationNotifier(repository, ref);
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});
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/// 월별 추천 통계 Provider
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final monthlyRecommendationStatsProvider = FutureProvider.family<Map<String, int>, ({int year, int month})>((ref, params) async {
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final repository = ref.watch(recommendationRepositoryProvider);
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return repository.getMonthlyRecommendationStats(params.year, params.month);
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});
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/// 추천 상태 관리 (다시 추천 기능 포함)
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class RecommendationState {
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final Restaurant? currentRecommendation;
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final List<Restaurant> excludedRestaurants;
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final bool isLoading;
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final String? error;
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const RecommendationState({
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this.currentRecommendation,
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this.excludedRestaurants = const [],
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this.isLoading = false,
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this.error,
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});
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RecommendationState copyWith({
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Restaurant? currentRecommendation,
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List<Restaurant>? excludedRestaurants,
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bool? isLoading,
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String? error,
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}) {
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return RecommendationState(
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currentRecommendation: currentRecommendation ?? this.currentRecommendation,
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excludedRestaurants: excludedRestaurants ?? this.excludedRestaurants,
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isLoading: isLoading ?? this.isLoading,
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error: error,
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);
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}
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}
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/// 향상된 추천 StateNotifier (다시 추천 기능 포함)
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class EnhancedRecommendationNotifier extends StateNotifier<RecommendationState> {
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final Ref _ref;
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final RecommendationEngine _recommendationEngine = RecommendationEngine();
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EnhancedRecommendationNotifier(this._ref) : super(const RecommendationState());
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/// 다시 추천 (현재 추천 제외)
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Future<void> rerollRecommendation() async {
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if (state.currentRecommendation == null) return;
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// 현재 추천을 제외 목록에 추가
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final excluded = [...state.excludedRestaurants, state.currentRecommendation!];
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state = state.copyWith(excludedRestaurants: excluded);
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// 다시 추천 생성 (제외 목록 적용)
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await generateRecommendation(excludedRestaurants: excluded);
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}
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/// 추천 생성 (새로운 추천 엔진 활용)
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Future<void> generateRecommendation({List<Restaurant>? excludedRestaurants}) async {
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state = state.copyWith(isLoading: true);
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try {
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// 현재 위치 가져오기
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final location = await _ref.read(currentLocationProvider.future);
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if (location == null) {
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state = state.copyWith(error: '위치 정보를 가져올 수 없습니다', isLoading: false);
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return;
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}
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// 필요한 데이터 가져오기
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final weather = await _ref.read(weatherProvider.future);
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final userSettings = await _ref.read(userSettingsProvider.future);
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final allRestaurants = await _ref.read(restaurantListProvider.future);
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final allVisitRecords = await _ref.read(visitRecordsProvider.future);
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final maxDistanceNormal = await _ref.read(maxDistanceNormalProvider.future);
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final selectedCategory = _ref.read(selectedCategoryProvider);
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final categories = selectedCategory != null ? [selectedCategory] : <String>[];
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// 제외 리스트 포함한 식당 필터링
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final availableRestaurants = excludedRestaurants != null
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? allRestaurants.where((r) => !excludedRestaurants.any((ex) => ex.id == r.id)).toList()
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: allRestaurants;
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// 추천 설정 구성
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final config = RecommendationConfig(
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userLatitude: location.latitude,
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userLongitude: location.longitude,
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maxDistance: maxDistanceNormal.toDouble(),
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selectedCategories: categories,
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userSettings: userSettings,
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weather: weather,
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);
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// 추천 엔진 사용
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final selectedRestaurant = await _recommendationEngine.generateRecommendation(
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allRestaurants: availableRestaurants,
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recentVisits: allVisitRecords,
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config: config,
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);
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if (selectedRestaurant != null) {
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// 추천 기록 저장
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final record = RecommendationRecord(
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id: const Uuid().v4(),
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restaurantId: selectedRestaurant.id,
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recommendationDate: DateTime.now(),
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visited: false,
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createdAt: DateTime.now(),
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);
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final repository = _ref.read(recommendationRepositoryProvider);
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await repository.addRecommendationRecord(record);
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state = state.copyWith(
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currentRecommendation: selectedRestaurant,
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isLoading: false,
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);
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} else {
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state = state.copyWith(
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error: '조건에 맞는 맛집이 없습니다',
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isLoading: false,
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);
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}
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} catch (e) {
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state = state.copyWith(
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error: e.toString(),
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isLoading: false,
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);
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}
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}
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/// 추천 초기화
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void resetRecommendation() {
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state = const RecommendationState();
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}
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}
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/// 향상된 추천 Provider
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final enhancedRecommendationProvider =
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StateNotifierProvider<EnhancedRecommendationNotifier, RecommendationState>((ref) {
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return EnhancedRecommendationNotifier(ref);
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});
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/// 추천 가능한 맛집 수 Provider
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final recommendableRestaurantsCountProvider = FutureProvider<int>((ref) async {
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final daysToExclude = await ref.watch(daysToExcludeProvider.future);
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final recentlyVisited = await ref.watch(
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restaurantsNotVisitedInDaysProvider(daysToExclude).future
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);
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return recentlyVisited.length;
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});
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/// 카테고리별 추천 통계 Provider
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final recommendationStatsByCategoryProvider = FutureProvider<Map<String, int>>((ref) async {
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final records = await ref.watch(recommendationRecordsProvider.future);
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final stats = <String, int>{};
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for (final record in records) {
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final restaurant = await ref.watch(restaurantProvider(record.restaurantId).future);
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if (restaurant != null) {
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stats[restaurant.category] = (stats[restaurant.category] ?? 0) + 1;
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}
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}
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return stats;
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});
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/// 추천 성공률 Provider
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final recommendationSuccessRateProvider = FutureProvider<double>((ref) async {
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final records = await ref.watch(recommendationRecordsProvider.future);
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if (records.isEmpty) return 0.0;
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final visitedCount = records.where((r) => r.visited).length;
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return (visitedCount / records.length) * 100;
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});
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/// 가장 많이 추천된 맛집 Top 5 Provider
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final topRecommendedRestaurantsProvider = FutureProvider<List<({String restaurantId, int count})>>((ref) async {
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final records = await ref.watch(recommendationRecordsProvider.future);
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final counts = <String, int>{};
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for (final record in records) {
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counts[record.restaurantId] = (counts[record.restaurantId] ?? 0) + 1;
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}
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final sorted = counts.entries.toList()
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..sort((a, b) => b.value.compareTo(a.value));
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return sorted.take(5).map((e) => (restaurantId: e.key, count: e.value)).toList();
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});
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