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