feat: riscrivi app in Flutter

Riscrittura completa da Vue 3 + Capacitor a Flutter/Dart. Architettura feature-based (lib/features/): - meal_planner: modello MealPlan/DayPlan, provider, pagina e widget - converter: modello ConversionEntry, provider con ricerca, pagina - shopping_list: modello ShoppingItem, provider con deduplicazione, pagina e widget Core: - Material 3 con seed color #2d6a4f - NavigationBar + IndexedStack (preserva stato dei tab) - Portrait lock via SystemChrome - Persistenza con shared_preferences - 50+ alimenti × metodi cottura in assets/data/conversions.json Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-16 17:41:26 +02:00
parent d49b31f21d
commit eb7912421c
20 changed files with 1656 additions and 0 deletions
@@ -0,0 +1,62 @@
+import 'package:flutter/material.dart';
+import '../models/meal_plan.dart';
+import '../../../shared/services/storage_service.dart';
+import '../../../core/constants/app_constants.dart';
+
+class MealPlannerProvider extends ChangeNotifier {
+  MealPlan _plan = MealPlan.empty(kDayIds);
+
+  MealPlan get plan => _plan;
+
+  Future<void> load() async {
+    final json = await StorageService.load(kStorageKeyMeals);
+    if (json != null) {
+      try {
+        _plan = MealPlan.fromJsonString(json);
+      } catch (_) {
+        _plan = MealPlan.empty(kDayIds);
+      }
+    }
+    notifyListeners();
+  }
+
+  Future<void> _save() =>
+      StorageService.save(kStorageKeyMeals, _plan.toJsonString());
+
+  void addItem(String dayId, String slot, String text) {
+    final t = text.trim();
+    if (t.isEmpty) return;
+    final day = _plan.days[dayId]!;
+    final updated = switch (slot) {
+      'colazione' => day.copyWith(colazione: [...day.colazione, t]),
+      'pranzo' => day.copyWith(pranzo: [...day.pranzo, t]),
+      'cena' => day.copyWith(cena: [...day.cena, t]),
+      _ => day,
+    };
+    _plan = _plan.withUpdatedDay(dayId, updated);
+    notifyListeners();
+    _save();
+  }
+
+  void removeItem(String dayId, String slot, int index) {
+    final day = _plan.days[dayId]!;
+    final updated = switch (slot) {
+      'colazione' =>
+        day.copyWith(colazione: List.of(day.colazione)..removeAt(index)),
+      'pranzo' =>
+        day.copyWith(pranzo: List.of(day.pranzo)..removeAt(index)),
+      'cena' =>
+        day.copyWith(cena: List.of(day.cena)..removeAt(index)),
+      _ => day,
+    };
+    _plan = _plan.withUpdatedDay(dayId, updated);
+    notifyListeners();
+    _save();
+  }
+
+  void clearAll() {
+    _plan = MealPlan.empty(kDayIds);
+    notifyListeners();
+    _save();
+  }
+}