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Phuoc Nguyen
2025-10-10 17:36:10 +07:00
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# Clean Architecture Export Files - Summary
## Overview
Successfully created comprehensive barrel export files for the entire retail POS application following clean architecture principles.
## Total Files Created: 52 Export Files
### Core Module (10 files)
1. `/Users/ssg/project/retail/lib/core/core.dart` - Main core export
2. `/Users/ssg/project/retail/lib/core/config/config.dart` - Configuration exports
3. `/Users/ssg/project/retail/lib/core/constants/constants.dart` - All constants
4. `/Users/ssg/project/retail/lib/core/database/database.dart` - Database utilities
5. `/Users/ssg/project/retail/lib/core/di/di.dart` - Dependency injection
6. `/Users/ssg/project/retail/lib/core/errors/errors.dart` - Exceptions & failures
7. `/Users/ssg/project/retail/lib/core/network/network.dart` - HTTP & network
8. `/Users/ssg/project/retail/lib/core/storage/storage.dart` - Secure storage
9. `/Users/ssg/project/retail/lib/core/theme/theme.dart` - Material 3 theme
10. `/Users/ssg/project/retail/lib/core/utils/utils.dart` - Utilities & helpers
### Auth Feature (7 files)
11. `/Users/ssg/project/retail/lib/features/auth/auth.dart` - Main auth export
12. `/Users/ssg/project/retail/lib/features/auth/data/data.dart` - Auth data layer
13. `/Users/ssg/project/retail/lib/features/auth/data/models/models.dart` - Auth models
14. `/Users/ssg/project/retail/lib/features/auth/domain/domain.dart` - Auth domain layer
15. `/Users/ssg/project/retail/lib/features/auth/domain/entities/entities.dart` - Auth entities
16. `/Users/ssg/project/retail/lib/features/auth/presentation/presentation.dart` - Auth presentation
17. `/Users/ssg/project/retail/lib/features/auth/presentation/pages/pages.dart` - Auth pages
### Products Feature (10 files)
18. `/Users/ssg/project/retail/lib/features/products/products.dart` - Main products export
19. `/Users/ssg/project/retail/lib/features/products/data/data.dart` - Products data layer
20. `/Users/ssg/project/retail/lib/features/products/data/datasources/datasources.dart` - Product data sources
21. `/Users/ssg/project/retail/lib/features/products/data/models/models.dart` - Product models
22. `/Users/ssg/project/retail/lib/features/products/domain/domain.dart` - Products domain layer
23. `/Users/ssg/project/retail/lib/features/products/domain/entities/entities.dart` - Product entities
24. `/Users/ssg/project/retail/lib/features/products/domain/usecases/usecases.dart` - Product use cases
25. `/Users/ssg/project/retail/lib/features/products/presentation/presentation.dart` - Products presentation
26. `/Users/ssg/project/retail/lib/features/products/presentation/pages/pages.dart` - Product pages
27. `/Users/ssg/project/retail/lib/features/products/presentation/providers/providers.dart` - Product providers
### Categories Feature (9 files)
28. `/Users/ssg/project/retail/lib/features/categories/categories.dart` - Main categories export
29. `/Users/ssg/project/retail/lib/features/categories/data/data.dart` - Categories data layer
30. `/Users/ssg/project/retail/lib/features/categories/data/datasources/datasources.dart` - Category data sources
31. `/Users/ssg/project/retail/lib/features/categories/data/models/models.dart` - Category models
32. `/Users/ssg/project/retail/lib/features/categories/domain/domain.dart` - Categories domain layer
33. `/Users/ssg/project/retail/lib/features/categories/domain/entities/entities.dart` - Category entities
34. `/Users/ssg/project/retail/lib/features/categories/domain/usecases/usecases.dart` - Category use cases
35. `/Users/ssg/project/retail/lib/features/categories/presentation/presentation.dart` - Categories presentation
36. `/Users/ssg/project/retail/lib/features/categories/presentation/pages/pages.dart` - Category pages
### Home/Cart Feature (9 files)
37. `/Users/ssg/project/retail/lib/features/home/home.dart` - Main home/cart export
38. `/Users/ssg/project/retail/lib/features/home/data/data.dart` - Cart data layer
39. `/Users/ssg/project/retail/lib/features/home/data/datasources/datasources.dart` - Cart data sources
40. `/Users/ssg/project/retail/lib/features/home/data/models/models.dart` - Cart models
41. `/Users/ssg/project/retail/lib/features/home/domain/domain.dart` - Cart domain layer
42. `/Users/ssg/project/retail/lib/features/home/domain/entities/entities.dart` - Cart entities
43. `/Users/ssg/project/retail/lib/features/home/domain/usecases/usecases.dart` - Cart use cases
44. `/Users/ssg/project/retail/lib/features/home/presentation/presentation.dart` - Cart presentation
45. `/Users/ssg/project/retail/lib/features/home/presentation/pages/pages.dart` - Cart pages
### Settings Feature (10 files)
46. `/Users/ssg/project/retail/lib/features/settings/settings.dart` - Main settings export
47. `/Users/ssg/project/retail/lib/features/settings/data/data.dart` - Settings data layer
48. `/Users/ssg/project/retail/lib/features/settings/data/datasources/datasources.dart` - Settings data sources
49. `/Users/ssg/project/retail/lib/features/settings/data/models/models.dart` - Settings models
50. `/Users/ssg/project/retail/lib/features/settings/domain/domain.dart` - Settings domain layer
51. `/Users/ssg/project/retail/lib/features/settings/domain/entities/entities.dart` - Settings entities
52. `/Users/ssg/project/retail/lib/features/settings/domain/usecases/usecases.dart` - Settings use cases
53. `/Users/ssg/project/retail/lib/features/settings/presentation/presentation.dart` - Settings presentation
54. `/Users/ssg/project/retail/lib/features/settings/presentation/pages/pages.dart` - Settings pages
55. `/Users/ssg/project/retail/lib/features/settings/presentation/widgets/widgets.dart` - Settings widgets
### Top-Level Exports (2 files)
56. `/Users/ssg/project/retail/lib/features/features.dart` - All features export
57. `/Users/ssg/project/retail/lib/shared/shared.dart` - Shared components export
## Architecture Benefits
### 1. Clean Imports
```dart
// Before
import 'package:retail/features/products/data/models/product_model.dart';
import 'package:retail/features/products/domain/entities/product.dart';
import 'package:retail/features/products/domain/repositories/product_repository.dart';
// After
import 'package:retail/features/products/products.dart';
```
### 2. Layer Separation
- **Data Layer**: Models, data sources, repository implementations
- **Domain Layer**: Entities, repository interfaces, use cases
- **Presentation Layer**: Pages, widgets, providers
### 3. Dependency Rules
- Presentation → Domain ← Data
- Domain is independent (no dependencies on outer layers)
- Data implements domain interfaces
### 4. Import Flexibility
```dart
// Import entire feature
import 'package:retail/features/auth/auth.dart';
// Import specific layer
import 'package:retail/features/auth/domain/domain.dart';
// Import specific component
import 'package:retail/features/auth/domain/entities/entities.dart';
```
## Usage Examples
### Feature-Level Import
```dart
import 'package:retail/features/products/products.dart';
// Access all layers: data, domain, presentation
```
### Layer-Level Import
```dart
import 'package:retail/features/products/domain/domain.dart';
// Access: entities, repositories, use cases
```
### Component-Level Import
```dart
import 'package:retail/features/products/domain/entities/entities.dart';
// Access: Product entity only
```
### Core Utilities
```dart
import 'package:retail/core/core.dart';
// Access all core utilities: constants, network, theme, etc.
```
### Specific Core Module
```dart
import 'package:retail/core/theme/theme.dart';
// Access: AppTheme, colors, typography
```
## Export Hierarchy
```
lib/
├── core/core.dart # All core utilities
│ ├── config/config.dart
│ ├── constants/constants.dart
│ ├── database/database.dart
│ ├── di/di.dart
│ ├── errors/errors.dart
│ ├── network/network.dart
│ ├── storage/storage.dart
│ ├── theme/theme.dart
│ └── utils/utils.dart
│
├── features/features.dart # All features
│ ├── auth/auth.dart # Auth feature
│ │ ├── data/data.dart
│ │ │ └── models/models.dart
│ │ ├── domain/domain.dart
│ │ │ └── entities/entities.dart
│ │ └── presentation/presentation.dart
│ │ └── pages/pages.dart
│ │
│ ├── products/products.dart # Products feature
│ │ ├── data/data.dart
│ │ │ ├── datasources/datasources.dart
│ │ │ └── models/models.dart
│ │ ├── domain/domain.dart
│ │ │ ├── entities/entities.dart
│ │ │ └── usecases/usecases.dart
│ │ └── presentation/presentation.dart
│ │ ├── pages/pages.dart
│ │ └── providers/providers.dart
│ │
│ ├── categories/categories.dart # Categories feature
│ │ ├── data/data.dart
│ │ │ ├── datasources/datasources.dart
│ │ │ └── models/models.dart
│ │ ├── domain/domain.dart
│ │ │ ├── entities/entities.dart
│ │ │ └── usecases/usecases.dart
│ │ └── presentation/presentation.dart
│ │ └── pages/pages.dart
│ │
│ ├── home/home.dart # Home/Cart feature
│ │ ├── data/data.dart
│ │ │ ├── datasources/datasources.dart
│ │ │ └── models/models.dart
│ │ ├── domain/domain.dart
│ │ │ ├── entities/entities.dart
│ │ │ └── usecases/usecases.dart
│ │ └── presentation/presentation.dart
│ │ └── pages/pages.dart
│ │
│ └── settings/settings.dart # Settings feature
│ ├── data/data.dart
│ │ ├── datasources/datasources.dart
│ │ └── models/models.dart
│ ├── domain/domain.dart
│ │ ├── entities/entities.dart
│ │ └── usecases/usecases.dart
│ └── presentation/presentation.dart
│ ├── pages/pages.dart
│ └── widgets/widgets.dart
│
└── shared/shared.dart # Shared components
```
## Guidelines
### DO's
1. Import at the appropriate level (feature, layer, or component)
2. Use barrel exports for cleaner code
3. Respect layer boundaries (domain never imports data/presentation)
4. Update barrel exports when adding/removing files
### DON'Ts
1. Don't bypass barrel exports
2. Don't violate layer dependencies
3. Don't over-import (import only what you need)
4. Don't import implementation details directly
## Maintenance
When making changes:
1. **Adding new file**: Update the appropriate barrel export
2. **Removing file**: Remove from barrel export
3. **Renaming file**: Update barrel export reference
4. **New module**: Create new barrel exports following the pattern
## Documentation
Full documentation available at:
- `/Users/ssg/project/retail/lib/EXPORTS_DOCUMENTATION.md`
## Key Features
- **52 barrel export files** covering all features and core modules
- **Hierarchical organization** from top-level to component-level
- **Layer isolation** enforcing clean architecture
- **Flexible imports** at feature, layer, or component level
- **Clear boundaries** between modules and layers
- **Easy maintenance** with centralized exports
## Next Steps
1. Update existing imports to use barrel exports
2. Run `flutter analyze` to ensure no issues
3. Test imports in different files
4. Update team documentation
5. Create import examples for common scenarios
---
**Created:** October 10, 2025
**Architecture:** Clean Architecture with Feature-First Organization
**Pattern:** Barrel Exports with Layer Separation