timeline-frontend/INFRASTRUCTURE_SETUP.md

Personal User Enhancements - Infrastructure Setup

This document summarizes the shared infrastructure and utilities set up for the personal-user-enhancements feature.

Completed Setup

1. Property-Based Testing Library ✅

• Library: fast-check v4.5.3
• Installation: Added to devDependencies
• Purpose: Generate random test data for property-based testing with minimum 100 iterations per property

2. TypeScript Type Definitions ✅

Created comprehensive type definitions in src/types/:

• collections.d.ts: Smart Collections types (SmartCollection, CollectionCriteria, ContentItem, etc.)
• albums.d.ts: Album Management types (Album, AlbumPhoto, CreateAlbumDTO, etc.)
• statistics.d.ts: Personal Statistics types (UserStatistics, UploadTrend, StorageBreakdown)
• sync.d.ts: Offline Editing types (ChangeRecord, SyncResult, Conflict, Resolution, etc.)
• social.d.ts: Comments & Reactions types (Comment, Reaction, ReactionSummary, etc.)
• preferences.d.ts: User Preferences types (ThemePreferences, LayoutPreferences, etc.)
• profile.d.ts: Profile Customization types (UserProfile, CustomField, etc.)

All types are declared in the API namespace for consistency with existing codebase patterns.

3. API Service Layer ✅

Created service layer structure in src/services/:

Collections Service (src/services/collections/)

• getSmartCollections(): Fetch all smart collections
• getCollectionContent(): Get content for a specific collection
• refreshSmartCollections(): Force refresh collections

Albums Service (src/services/albums/)

• getAlbums(): List all albums
• getAlbumById(): Get album details
• createAlbum(): Create new album
• updateAlbum(): Update album
• deleteAlbum(): Delete album
• addPhotosToAlbum(): Add photos to album
• removePhotosFromAlbum(): Remove photos from album
• reorderPhotos(): Reorder photos in album
• setAlbumCover(): Set album cover photo

Statistics Service (src/services/statistics/)

• getStatisticsOverview(): Get user statistics
• getUploadTrends(): Get upload trends
• getStorageBreakdown(): Get storage breakdown
• refreshStatistics(): Force refresh statistics

Sync Service (src/services/sync/)

• uploadChanges(): Upload offline changes batch
• getSyncStatus(): Get sync status
• resolveConflict(): Resolve sync conflict

Comments Service (src/services/comments/)

• getComments(): Get comments for entity
• createComment(): Create comment
• updateComment(): Update comment
• deleteComment(): Delete comment

Reactions Service (src/services/reactions/)

• getReactions(): Get reactions for entity
• addReaction(): Add or update reaction
• removeReaction(): Remove reaction

Preferences Service (src/services/preferences/)

• getPreferences(): Get user preferences
• updateThemePreferences(): Update theme
• updateLayoutPreferences(): Update layout
• updateTimelinePreferences(): Update timeline display

Profile Service (src/services/profile/)

• getProfile(): Get user profile
• updateProfile(): Update profile
• uploadCoverPhoto(): Upload cover photo
• updateCustomFields(): Update custom fields

4. WebSocket (STOMP) Connection ✅

Existing WebSocket infrastructure verified and ready:

• Model: src/models/stomp.ts provides STOMP client connection
• Configuration: Auto-reconnect, heartbeat, authentication via token
• Topics: Ready for real-time updates on comments, reactions, and collections

5. Test Utilities and Generators ✅

Created comprehensive test utilities in src/utils/test/:

Generators (generators.ts)

• ID Generators: userIdArb(), photoIdArb(), albumIdArb(), storyIdArb(), etc.
• String Generators: albumNameArb(), commentTextArb(), bioTextArb(), etc.
• Validation Generators: invalidCommentTextArb(), invalidBioTextArb()
• Enum Generators: reactionTypeArb(), themeModeArb(), layoutTypeArb(), etc.
• Complex Object Generators: albumArb(), commentArb(), changeRecordArb(), etc.
• Array Generators: photoIdsArrayArb(), customFieldsArrayArb(), changeRecordsArrayArb()

Helpers (helpers.ts)

• Validation: isValidCommentText(), isValidBioText()
• Array Operations: hasNoDuplicates(), haveSameElements()
• Sorting: isSortedNewestFirst(), isSortedOldestFirst()
• Time: isWithin24Hours()
• Testing Utilities: MockLocalStorage, waitFor(), deepClone(), deepEqual()

Documentation

• README: Comprehensive guide in src/utils/test/README.md
• Examples: Property test examples and best practices
• Tag Format: Documented property test comment tag format

6. Verification ✅

Created and ran property tests to verify the infrastructure:

• Test File: src/utils/test/__tests__/generators.property.test.ts
• Test Results: All 8 property tests passed
• Coverage: Validates generators produce correct data types and constraints

File Structure

timeline-frontend/src/
├── types/
│   ├── albums.d.ts
│   ├── collections.d.ts
│   ├── preferences.d.ts
│   ├── profile.d.ts
│   ├── social.d.ts
│   ├── statistics.d.ts
│   └── sync.d.ts
├── services/
│   ├── albums/
│   │   ├── api.ts
│   │   └── index.ts
│   ├── collections/
│   │   ├── api.ts
│   │   └── index.ts
│   ├── comments/
│   │   ├── api.ts
│   │   └── index.ts
│   ├── preferences/
│   │   ├── api.ts
│   │   └── index.ts
│   ├── profile/
│   │   ├── api.ts
│   │   └── index.ts
│   ├── reactions/
│   │   ├── api.ts
│   │   └── index.ts
│   ├── statistics/
│   │   ├── api.ts
│   │   └── index.ts
│   └── sync/
│       ├── api.ts
│       └── index.ts
└── utils/
    └── test/
        ├── __tests__/
        │   └── generators.property.test.ts
        ├── generators.ts
        ├── helpers.ts
        ├── index.ts
        └── README.md

Dependencies Added

{
  "devDependencies": {
    "fast-check": "^4.5.3"
  }
}

Next Steps

This infrastructure provides the foundation for implementing all 10 feature areas:

1. Smart Collections (Requirements 1.1-1.6)
2. Album Management (Requirements 2.1-2.8)
3. Personal Statistics (Requirements 3.1-3.8)
4. Offline Editing (Requirements 4.1-4.9)
5. Comments (Requirements 5.1-5.10)
6. Reactions (Requirements 6.1-6.9)
7. Theme Customization (Requirements 7.1-7.7)
8. Layout Preferences (Requirements 8.1-8.6)
9. Timeline Display (Requirements 9.1-9.6)
10. Profile Customization (Requirements 10.1-10.8)

Each feature can now:

• Use type-safe API services
• Leverage property-based testing with fast-check
• Access WebSocket for real-time updates
• Build on shared test utilities and generators

Testing

Run property tests:

npm test -- generators.property.test.ts

Run all tests:

npm test

References

• Design Document: .kiro/specs/personal-user-enhancements/design.md
• Requirements: .kiro/specs/personal-user-enhancements/requirements.md
• Tasks: .kiro/specs/personal-user-enhancements/tasks.md
• fast-check Documentation: https://github.com/dubzzz/fast-check