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feat: implement offline-first architecture with local database synchronization and diary caching

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This commit is contained in:
mso7nueh
2026-04-20 11:33:34 +03:00
parent 4f241f7db6
commit ed60588988
35 changed files with 2644 additions and 161 deletions
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31
lib/features/diary/presentation/widgets/calories_chart_widget.dart
View File

@@ -13,6 +13,10 @@ class CaloriesChartWidget extends StatelessWidget {
return BlocBuilder<DiaryCubit, DiaryState>(
builder: (BuildContext context, DiaryState state) {
if (state is DiaryStateLoaded) {
// В офлайн-режиме данные о питании недоступны — скрываем блок
final nutrition = state.nutrition;
if (nutrition == null) return const SizedBox.shrink();
return Container(
margin: const EdgeInsets.only(top: 12),
padding: const EdgeInsets.all(16),
@@ -72,9 +76,9 @@ class CaloriesChartWidget extends StatelessWidget {
cornerStyle: CornerStyle.bothCurve,
),
RangePointer(
value: (state.nutrition.dailyNutritionIntake.carbohydrates / state.nutrition.dailyNutritionRecommendation.carbohydrates) * 100,
value: (nutrition.dailyNutritionIntake.carbohydrates / nutrition.dailyNutritionRecommendation.carbohydrates) * 100,
width: 0.16,
color: state.nutrition.dailyNutritionIntake.carbohydrates < state.nutrition.dailyNutritionRecommendation.carbohydrates
color: nutrition.dailyNutritionIntake.carbohydrates < nutrition.dailyNutritionRecommendation.carbohydrates
? appTheme.blueA400
: Colors.red,
sizeUnit: GaugeSizeUnit.factor,
@@ -92,9 +96,9 @@ class CaloriesChartWidget extends StatelessWidget {
pointerOffset: -0.18,
),
RangePointer(
value: (state.nutrition.dailyNutritionIntake.fats / state.nutrition.dailyNutritionRecommendation.fats) * 100,
value: (nutrition.dailyNutritionIntake.fats / nutrition.dailyNutritionRecommendation.fats) * 100,
width: 0.16,
color: state.nutrition.dailyNutritionIntake.fats < state.nutrition.dailyNutritionRecommendation.fats
color: nutrition.dailyNutritionIntake.fats < nutrition.dailyNutritionRecommendation.fats
? appTheme.blueA400
: Colors.red,
sizeUnit: GaugeSizeUnit.factor,
@@ -113,9 +117,9 @@ class CaloriesChartWidget extends StatelessWidget {
pointerOffset: -0.36,
),
RangePointer(
value: (state.nutrition.dailyNutritionIntake.proteins / state.nutrition.dailyNutritionRecommendation.proteins) * 100,
value: (nutrition.dailyNutritionIntake.proteins / nutrition.dailyNutritionRecommendation.proteins) * 100,
width: 0.16,
color: state.nutrition.dailyNutritionIntake.proteins < state.nutrition.dailyNutritionRecommendation.proteins
color: nutrition.dailyNutritionIntake.proteins < nutrition.dailyNutritionRecommendation.proteins
? appTheme.blueA400
: Colors.red,
sizeUnit: GaugeSizeUnit.factor,
@@ -134,9 +138,9 @@ class CaloriesChartWidget extends StatelessWidget {
pointerOffset: -0.54,
),
RangePointer(
value: (state.nutrition.dailyNutritionIntake.energy / state.nutrition.dailyNutritionRecommendation.energy) * 100,
value: (nutrition.dailyNutritionIntake.energy / nutrition.dailyNutritionRecommendation.energy) * 100,
width: 0.16,
color: state.nutrition.dailyNutritionIntake.energy < state.nutrition.dailyNutritionRecommendation.energy
color: nutrition.dailyNutritionIntake.energy < nutrition.dailyNutritionRecommendation.energy
? appTheme.blueA400
: Colors.red,
sizeUnit: GaugeSizeUnit.factor,
@@ -210,24 +214,22 @@ class CaloriesChartWidget extends StatelessWidget {
children: [
_chartData(
'Калории',
'${state.nutrition.dailyNutritionIntake.energy.toStringAsFixed(0)} из ${state.nutrition.dailyNutritionRecommendation.energy.toStringAsFixed(0)} ккал',
'${nutrition.dailyNutritionIntake.energy.toStringAsFixed(0)} из ${nutrition.dailyNutritionRecommendation.energy.toStringAsFixed(0)} ккал',
),
const SizedBox(height: 8),
_chartData(
'Белки',
'${state.nutrition.dailyNutritionIntake.proteins.toStringAsFixed(0)} из ${state.nutrition.dailyNutritionRecommendation.proteins.toStringAsFixed(
0,
)} грамм',
'${nutrition.dailyNutritionIntake.proteins.toStringAsFixed(0)} из ${nutrition.dailyNutritionRecommendation.proteins.toStringAsFixed(0)} грамм',
),
const SizedBox(height: 8),
_chartData(
'Жиры',
'${state.nutrition.dailyNutritionIntake.fats.toStringAsFixed(0)} из ${state.nutrition.dailyNutritionRecommendation.fats.toStringAsFixed(0)} грамм',
'${nutrition.dailyNutritionIntake.fats.toStringAsFixed(0)} из ${nutrition.dailyNutritionRecommendation.fats.toStringAsFixed(0)} грамм',
),
const SizedBox(height: 8),
_chartData(
'Углеводы',
'${state.nutrition.dailyNutritionIntake.carbohydrates.toStringAsFixed(0)} из ${state.nutrition.dailyNutritionRecommendation.carbohydrates.toStringAsFixed(0)} грамм',
'${nutrition.dailyNutritionIntake.carbohydrates.toStringAsFixed(0)} из ${nutrition.dailyNutritionRecommendation.carbohydrates.toStringAsFixed(0)} грамм',
),
],
),
@@ -238,6 +240,7 @@ class CaloriesChartWidget extends StatelessWidget {
);
}
return const SizedBox.shrink();
},
);
}

200
lib/features/diary/presentation/widgets/offline_banner_widget.dart Normal file
View File

@@ -0,0 +1,200 @@
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:eatvio_app/features/diary/presentation/bloc/diary_cubit.dart';
import 'package:eatvio_app/features/diary/presentation/bloc/diary_state.dart';
/// Тонкий баннер вверху экрана дневника, указывающий на офлайн-режим
/// и количество операций, ожидающих синхронизацию.
///
/// Показывается только когда нет интернета или есть pending операции.
/// Автоматически скрывается при восстановлении соединения и пустой очереди.
class OfflineBannerWidget extends StatelessWidget {
const OfflineBannerWidget({super.key});
@override
Widget build(BuildContext context) {
return BlocBuilder<DiaryCubit, DiaryState>(
buildWhen: (prev, curr) {
if (prev is DiaryStateLoaded && curr is DiaryStateLoaded) {
return prev.pendingOpsCount != curr.pendingOpsCount ||
prev.isOfflineMode != curr.isOfflineMode;
}
return prev.runtimeType != curr.runtimeType;
},
builder: (context, state) {
if (state is! DiaryStateLoaded) return const SizedBox.shrink();
final isOffline = state.isOfflineMode;
final pending = state.pendingOpsCount;
// Не показываем если онлайн и очердь пуста
if (!isOffline && pending == 0) return const SizedBox.shrink();
return _OfflineBanner(isOffline: isOffline, pendingCount: pending);
},
);
}
}
class _OfflineBanner extends StatefulWidget {
final bool isOffline;
final int pendingCount;
const _OfflineBanner({required this.isOffline, required this.pendingCount});
@override
State<_OfflineBanner> createState() => _OfflineBannerState();
}
class _OfflineBannerState extends State<_OfflineBanner>
with SingleTickerProviderStateMixin {
late final AnimationController _controller;
late final Animation<double> _slideAnim;
@override
void initState() {
super.initState();
_controller = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 300),
);
_slideAnim = Tween<double>(begin: -1.0, end: 0.0).animate(
CurvedAnimation(parent: _controller, curve: Curves.easeOutCubic),
);
_controller.forward();
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final (color, icon, text) = _resolveStyle();
return AnimatedBuilder(
animation: _slideAnim,
builder: (context, child) => Transform.translate(
offset: Offset(0, _slideAnim.value * 40),
child: child,
),
child: Container(
width: double.infinity,
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 9),
decoration: BoxDecoration(
color: color,
boxShadow: [
BoxShadow(
color: color.withValues(alpha: 0.35),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: Row(
children: [
Icon(icon, color: Colors.white, size: 16),
const SizedBox(width: 8),
Expanded(
child: Text(
text,
style: const TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.w600,
letterSpacing: 0.2,
),
),
),
if (widget.isOffline)
const _PulsingDot(),
],
),
),
);
}
(Color, IconData, String) _resolveStyle() {
if (widget.isOffline && widget.pendingCount > 0) {
return (
const Color(0xFFE85D04),
Icons.cloud_off_rounded,
'Офлайн · ${widget.pendingCount} ${_inflect(widget.pendingCount)} в очереди',
);
} else if (widget.isOffline) {
return (
const Color(0xFF6B7280),
Icons.cloud_off_rounded,
'Офлайн · данные из кэша',
);
} else {
// Онлайн, но есть pending операции (только что восстановилось соединение)
return (
const Color(0xFF059669),
Icons.sync_rounded,
'Синхронизация: ${widget.pendingCount} ${_inflect(widget.pendingCount)}…',
);
}
}
String _inflect(int n) {
if (n % 100 >= 11 && n % 100 <= 19) return 'изменений';
switch (n % 10) {
case 1:
return 'изменение';
case 2:
case 3:
case 4:
return 'изменения';
default:
return 'изменений';
}
}
}
/// Мигающая точка — визуальный индикатор офлайн-статуса.
class _PulsingDot extends StatefulWidget {
const _PulsingDot();
@override
State<_PulsingDot> createState() => _PulsingDotState();
}
class _PulsingDotState extends State<_PulsingDot>
with SingleTickerProviderStateMixin {
late final AnimationController _ctrl;
late final Animation<double> _anim;
@override
void initState() {
super.initState();
_ctrl = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 800),
)..repeat(reverse: true);
_anim = Tween<double>(begin: 0.3, end: 1.0).animate(_ctrl);
}
@override
void dispose() {
_ctrl.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return FadeTransition(
opacity: _anim,
child: Container(
width: 8,
height: 8,
decoration: const BoxDecoration(
color: Colors.white,
shape: BoxShape.circle,
),
),
);
}
}