- Created recovery package with comprehensive retry logic
- Implemented Retry and RetryWithResult with configurable strategies
- Added exponential backoff with jitter support
- Created multiple recovery strategies:
- RetryRecoveryStrategy: retry with backoff
- FallbackRecoveryStrategy: fallback function
- CircuitBreakerRecoveryStrategy: wait for circuit breaker
- CompositeRecoveryStrategy: combine multiple strategies
- Added helper functions: IsRetryableError, IsTemporaryError, IsPermanentError
- Support for context cancellation and timeout
- Comprehensive unit tests for all recovery mechanisms
Phase: PHASE-6
Priority: P2
Progress: 117/267 (43.82%)
- Created VersionManager for managing API versions
- Added VersionMiddleware for automatic version detection:
- X-API-Version header
- Accept header (application/vnd.veza.v1+json)
- URL path (/api/v1/...)
- Added support for deprecated versions with sunset dates
- Added /api/versions endpoint for version information
- Added helpers: GetAPIVersion, GetAPIVersionInfo
- Comprehensive unit tests for versioning system
- Integrated version manager in APIRouter
Phase: PHASE-6
Priority: P2
Progress: 115/267 (43.07%)
- Created TraceContext struct for distributed tracing
- Implemented W3C Trace Context format support (traceparent header)
- Added backward compatibility with legacy X-Trace-ID and X-Span-ID headers
- Created HTTPClientWithTracing for automatic trace propagation in outgoing requests
- Enhanced Tracing middleware to use new trace context system
- Added context propagation helpers (WithTraceContext, FromContext)
- Added child span creation for nested operations
- Comprehensive unit tests for trace context and HTTP client
Phase: PHASE-6
Priority: P2
Progress: 114/267 (42.70%)
- Created ShutdownManager for coordinated graceful shutdown of all services
- Added Shutdowner interface for services that need graceful shutdown
- Implemented parallel shutdown with individual timeouts (10s per service)
- Added global shutdown timeout (30s total)
- Integrated shutdown manager in main.go for:
- HTTP server shutdown
- JobWorker cancellation
- Config.Close() (DB, Redis, RabbitMQ)
- Logger sync
- Sentry flush
- Added comprehensive unit tests for shutdown manager
- Prevents registration of new services during shutdown
Phase: PHASE-6
Priority: P2
Progress: 113/267 (42.32%)
- Enhanced HealthCheck struct with Details field for additional metrics
- Added detailed database pool statistics (open connections, in use, idle, wait counts)
- Added health checks for S3 storage service (if enabled)
- Added health checks for Job Worker with job queue statistics
- Added health checks for Email Sender (SMTP configuration)
- Updated HealthHandler to accept additional services
- Updated router to pass S3, JobWorker, and EmailSender to health handler
Phase: PHASE-6
Priority: P2
Progress: 112/267 (41.95%)
- Added HTTP writer for centralized log collection (Loki-compatible)
- Created AggregationConfig with batch processing and flush intervals
- Integrated with existing zap logger using multi-core approach
- Added environment variables for configuration (LOG_AGGREGATION_ENABLED, LOG_AGGREGATION_ENDPOINT, etc.)
- Added unit tests for aggregation functionality
- Updated config.go to initialize logger with aggregation if enabled
Phase: PHASE-6
Priority: P2
Progress: 111/267 (41.57%)
- Created monitoring and alerting service with Prometheus integration
- Support for alert rules with thresholds and severities
- Alert firing and resolution tracking
- Notification callbacks for alert events
- Continuous monitoring with configurable intervals
- Default alert rules for common scenarios
- Prometheus query evaluation and threshold checking
- Comprehensive unit tests for core functionality
- Created CDN service with support for multiple providers
- Support for CloudFront, Cloudflare, and generic CDN
- URL generation for assets, audio, HLS streams, and images
- Cache invalidation with batch support
- Signed URL generation for private content
- Cache headers configuration
- Provider abstraction for easy switching
- Comprehensive unit tests for all functionality
- Enhanced HLS streaming service with additional features
- Stream validation and health checks
- URL generation for master and quality playlists
- Stream cleanup and management
- Statistics and monitoring
- Stream listing with filtering and pagination
- Status updates and existence checks
- Comprehensive unit tests for core functionality
- Created AudioTranscodeService with FFmpeg support
- Support for multiple audio formats (MP3, AAC, FLAC, OGG, WAV, M4A)
- Configurable bitrates and quality presets (low, medium, high, lossless)
- Sample rate and channel configuration
- Timeout handling and error management
- Transcode and TranscodeMultiple methods
- FFmpeg availability checking
- Audio metadata extraction using ffprobe
- Format validation and codec selection
- Comprehensive unit tests for core functionality
- Enhanced image processing service with multiple features
- Support for multiple image sizes (thumbnail, small, medium, large)
- Multiple output formats (JPEG, PNG, WebP)
- Configurable quality settings and processing options
- ProcessImage with customizable options
- ProcessAvatar for optimized avatar processing
- ProcessImageMultipleSizes for batch processing
- OptimizeImage for target file size optimization
- Image format conversion and validation
- Comprehensive unit tests for core functions
- Created Notification model for GORM with proper relationships
- Enhanced NotificationService with GORM-based implementation
- Features: pagination, filtering by type/read status, batch creation
- Mark as read (single and all), deletion (single and all read)
- Unread count and notification types listing
- Comprehensive unit tests for all operations
- Better error handling and logging
- Created AnalyticsAggregationService for analytics_events table
- Aggregation by event type and time period (hour, day, week, month)
- Support for filtering by event names and user ID
- Features: event counts, unique users, average per user, payload summary
- Top events ranking and user activity counts
- Uses PostgreSQL date_trunc and to_char for period grouping
- Added unit tests for service validation and helper functions
- Created TrackRecommendationService with ML-based algorithms
- Collaborative filtering (40%) using similar users' preferences
- Content-based filtering (30%) using track metadata (genre, artist, year)
- Popularity scoring (20%) based on play_count and like_count
- Recency scoring (10%) for recently uploaded tracks
- Support for seed tracks, genre filtering, and track exclusion
- Added unit tests for scoring algorithms
- Combines multiple algorithms for personalized recommendations
- Created FullTextSearchService using PostgreSQL tsvector/tsquery
- Supports full-text search for tracks, users, and playlists
- Uses GIN indexes from migration 048_search_indexes.sql
- Features relevance scoring with ts_rank_cd
- Weighted search (title/name weighted higher than description)
- Pagination and minimum relevance score filtering
- Unified search across all types and individual search methods
- Added unit tests for service validation and query preparation
- Added AWS SDK v2 dependency for S3 support
- Created S3StorageService implementing S3Service interface
- Support for AWS S3 and MinIO (S3-compatible storage)
- Added S3 configuration in config.go with environment variables
- Implemented upload, delete, presigned URL, and public URL methods
- Added unit tests for service validation and URL generation
- Service integrates with existing TrackStorageService
- Created reusable ConfirmationDialog component for destructive actions
- Replaced native confirm() dialogs with ConfirmationDialog in ChatSidebar (leave room, delete room)
- Replaced native confirm() dialogs with ConfirmationDialog in RolesPage (delete role)
- Replaced Dialog with ConfirmationDialog in PlaylistActions (delete playlist)
- Replaced window.confirm() with ConfirmationDialog in SessionsPage (revoke session, revoke all sessions)
- All destructive actions now use consistent confirmation dialogs
- Confirmation dialogs include proper messaging, loading states, and variant support
- Improved UX with better visual feedback and clearer action descriptions
- Created reusable EmptyState component with icon, title, description, and action support
- Improved empty state in PlaylistList with better messaging and icons
- Improved empty states in UserProfilePage for tracks and playlists tabs
- Added contextual messages based on whether viewing own profile or others
- Added helpful descriptions and icons to all empty states
- Empty states now provide clear guidance on what users can do next
- All list views now have consistent and helpful empty state messaging
- Added ErrorBoundary to all public routes (login, register, forgot-password, verify-email, reset-password)
- Added ErrorBoundary to public user profile page (/u/:username)
- Added ErrorBoundary to protected routes: dashboard, marketplace, chat
- Added ErrorBoundary to settings/sessions route
- Added ErrorBoundary to admin/roles route
- Added ErrorBoundary to tracks/:id route
- Added ErrorBoundary to playlists/* route
- Added ErrorBoundary to search route
- Added ErrorBoundary to notifications route
- Added ErrorBoundary to error pages (404, 500)
- All pages now have error boundaries for graceful error handling
- Error boundaries provide fallback UI with retry and home navigation options
- Created ButtonLoading component for consistent loading button pattern
- Created comprehensive loading states pattern guide
- Documented best practices for loading states in async operations
- Identified and documented existing loading state implementations
- Provided patterns for form submissions, data fetching, mutations, and skeleton loaders
- Created checklist for implementing loading states
- Documented examples from existing codebase
Most components already have loading states implemented. Pattern guide ensures consistency for future implementations.
- Created dedicated Notifications page with full notification management
- Added notification service with API integration (get, mark as read, mark all as read)
- Added filtering by status (all/unread/read) and type (message/track/mention/system/etc)
- Added mark as read functionality for individual notifications
- Added mark all as read functionality
- Added notification type icons and labels
- Added notification timestamps with relative time formatting
- Added notification links support for navigation
- Added empty states for no notifications
- Added loading and error states
- Integrated with backend notification APIs
- Added route /notifications to router
- Added lazy loading for NotificationsPage component
- Added visual distinction for unread notifications (badge, background)
- Added notification type badges
- Created dedicated Search page with unified search interface
- Added search functionality for tracks, playlists, and users
- Implemented tabs for filtering results by type (All/Tracks/Playlists/Users)
- Added search query debouncing for performance
- Added URL query parameter synchronization (q, type)
- Added pagination for each result type
- Added empty states for no query and no results
- Added loading states for all search operations
- Added error handling for search failures
- Integrated with existing search APIs (tracks, playlists, users)
- Added search service for user search API
- Added route /search to router
- Added lazy loading for SearchPage component
- Added result previews in All tab (6 items per type)
- Added View All buttons to navigate to specific tabs
- Added user agent parser to extract device information (OS, browser, device type)
- Added device information display with formatted device details
- Added location information display (with support for private IP detection)
- Enhanced session cards with device type badges and detailed info
- Improved device icon selection based on device type (mobile/tablet/desktop)
- Added formatted device info display (OS, browser, versions)
- Added location display with MapPin icon
- Added device type badge (mobile/tablet/desktop)
- Improved visual hierarchy with better spacing and badges
- Maintained existing session management actions (revoke, revoke all)
- Added CreateRoleModal for creating new roles
- Added EditRoleModal for editing existing roles
- Added AssignRoleModal for assigning roles to users
- Fixed roleService type issues (roleId from number to string)
- Enhanced RolesPage with create/edit/assign functionality
- Added UI section for assigning roles to users by ID
- Integrated all modals with existing role management
- Added proper form validation and error handling
- Added loading states for all async operations
- Added display of user current roles in assign modal
- Added user tracks display with grid layout and pagination
- Added user playlists display with grid layout and pagination
- Added stats section showing tracks, playlists, and followers count
- Implemented tabs for switching between tracks and playlists
- Enhanced FollowButton with API integration (follow/unfollow)
- Added follow/unfollow API functions in profileService
- Added followers/following API functions (getFollowers, getFollowing)
- Added View All links for tracks and playlists when count > 12
- Improved profile layout with better organization
- Added empty states for tracks and playlists sections
- Added server-side search using searchPlaylists API
- Added filtering: visibility (public/private), owner (all/mine/others)
- Added client-side sorting: by date, title, track count (asc/desc)
- Enhanced filter UI with collapsible filters panel
- Added sort controls with field selector and order toggle
- Integrated search API when search query or filters are active
- Maintained existing bulk operations (delete, share, export)
- Added clear filters button when filters are active
- Improved UX with filter badges and active state indicators
- Added profile completion indicator with progress bar
- Added profile completion percentage and missing fields display
- Added social links management (Twitter, Instagram, Facebook, YouTube, Website)
- Improved bio editing with Textarea component and character counter
- Added social links display when not editing
- Added location field
- Updated UpdateProfileRequest interface to include social_links
- Integrated profile completion API endpoint
- Added filtering by genre and format with dropdown selects
- Added sorting by date, title, and popularity with order toggle
- Added bulk operations: select multiple tracks, bulk delete, bulk update
- Added bulk mode toggle with selection checkboxes
- Added batch delete and batch update API functions
- Added pagination controls
- Improved UI with filter bar and sort dropdown
- Added toast notifications for operations
- Added select all/deselect all functionality
- Created dashboardService.ts to fetch real stats and activity from API
- Created useDashboard hook for managing dashboard data
- Updated DashboardPage to use real data instead of hardcoded values
- Added loading states and skeletons for better UX
- Made quick actions functional with navigation
- Added activity timeline with real timestamps
- Formatted numbers with K/M suffixes for readability
- Added relative time formatting using date-fns
- Enhanced secrets management with environment-aware defaults
- Fixed RabbitMQ URL: no default credentials in production
- Added getRabbitMQURL with environment-aware logic
- Added ValidateRequiredSecrets to validate required secrets
- Added RequiredSecretKeys listing production-required secrets
- Added validation for RabbitMQ URL in production
- All secrets properly managed via environment variables
- No hardcoded secrets in production code
- Enhanced security headers middleware with additional headers
- Added X-Permitted-Cross-Domain-Policies: none
- Added Cross-Origin-Embedder-Policy: require-corp
- Added Cross-Origin-Opener-Policy: same-origin
- Added Cross-Origin-Resource-Policy: same-origin
- Enhanced Permissions-Policy with additional restrictions
- Enhanced CSP with frame-ancestors directive
- HSTS now only set in production (not in development)
- Updated tests to verify all new headers
- Created comprehensive sanitization utility functions
- SanitizeInput, SanitizeText, SanitizeHTML, SanitizeURL, SanitizeEmail, SanitizeUsername
- Applied sanitization to profile handler (username, bio, names, search)
- Applied sanitization to social posts content
- Applied sanitization to comment content
- Applied sanitization to playlist titles and descriptions
- All functions prevent XSS via HTML escaping and remove dangerous URL schemes
- Removes control characters and limits input length to prevent DoS
- Added automatic session refresh mechanism in auth middleware
- Sessions are refreshed when they reach 25% of lifetime remaining
- Refresh happens asynchronously to avoid blocking requests
- Applied to both RequireAuth and OptionalAuth middlewares
- Session timeout enforced through ValidateSession checks
- Created AccountLockoutService to track failed login attempts
- Accounts are locked after 5 failed attempts within 15 minutes
- Lockout duration: 30 minutes (auto-unlock)
- Service uses Redis for persistence (fail-open if Redis unavailable)
- Integrated into AuthService Login method:
* Check account lockout status before login
* Record failed attempts (even for non-existent users to prevent enumeration)
* Reset failed attempts counter on successful login
* Auto-unlock expired accounts
- Added SetAccountLockoutService method to AuthService
- Service initialized in router when Redis is available
Phase: PHASE-4
Priority: P1
Progress: 9/267 (3.4%)
- Enhanced PasswordValidator with additional security checks:
* Maximum length validation (128 characters)
* Common password detection (password, 123456, qwerty, etc.)
* Repetitive pattern detection (aaaa, 1111, etc.)
* Sequential pattern detection (1234, abcd, qwerty, etc.)
- Added ValidatePasswordChange method to ensure new password is
sufficiently different from old password (similarity check)
- Updated PasswordService to use enhanced validator consistently
- Replaced utils.ValidatePasswordStrength with validators.PasswordValidator
- All password operations now use the same comprehensive validation rules
Phase: PHASE-4
Priority: P1
Progress: 8/267 (3.0%)
- Applied RegisterRateLimit to POST /auth/register (3 attempts/hour)
- Applied PasswordResetRateLimit to password reset endpoints (3 attempts/hour)
- Added VerifyEmailRateLimit for POST /auth/verify-email (5 attempts/hour)
- Added ResendVerificationRateLimit for POST /auth/resend-verification (3 attempts/hour)
- Login endpoint already had rate limiting (5 attempts/15min)
- All rate limits are IP-based and use Redis for persistence
- Rate limiting disabled in test/e2e environments
Phase: PHASE-4
Priority: P1
Progress: 7/267 (2.6%)
- Added additional filters: resource_id, ip_address, user_agent
- Added page-based pagination support in addition to offset-based
- Added CountLogs method to get total count for pagination
- Standardized SearchLogs handler to use RespondSuccess/RespondWithAppError
- Replaced c.Get with GetUserIDUUID helper
- Improved validation for query parameters
- Response includes total count, page, total_pages, and offset metadata
Phase: PHASE-2
Priority: P2
Progress: 41/267 (15.4%)
- Standardized GetSharedTrack handler to use RespondSuccess/RespondWithAppError
- Handler validates share token via TrackShareService.ValidateShareToken
- Handler retrieves track by share.TrackID
- Handler properly handles errors (share not found, expired, track not found)
- Handler returns track and share information
- Handler uses standard API response format
- Endpoint is public (no authentication required)
Phase: PHASE-2
Priority: P1
Progress: 36/267 (13.5%)
- Standardized RevokeShare handler to use RespondSuccess/RespondWithAppError
- Handler validates share ID and checks ownership
- Handler revokes share link via TrackShareService.RevokeShare
- Handler properly handles errors (share not found, forbidden, internal errors)
- Handler uses standard API response format
Phase: PHASE-2
Priority: P1
Progress: 35/267 (13.1%)
- Standardized GetUserLikedTracks handler to use RespondSuccess/RespondWithAppError
- Added limit validation (max 100)
- Moved route from setupTrackRoutes to setupUserRoutes in protected group
- Handler uses existing TrackLikeService methods
- Handler returns paginated results with tracks, total, limit, and offset
- Handler uses standard API response format
Phase: PHASE-2
Priority: P1
Progress: 34/267 (12.7%)
- Standardized BatchDeleteTracks and BatchUpdateTracks handlers
- Handlers use RespondSuccess and RespondWithAppError
- BatchDeleteTracks validates IDs, checks ownership, deletes in batch
- BatchUpdateTracks validates IDs and updates, checks ownership, updates in batch
- Both handlers return results with successful and failed operations
- Handlers use standard API response format
Phase: PHASE-2
Priority: P2
Progress: 33/267 (12.4%)
- Standardized GetProfileCompletion handler to use GetUserIDUUID
- Added validation to ensure completion percentage is between 0 and 100
- Handler already existed and was working correctly
- Endpoint returns correct completion percentage (0-100) and missing fields
- Handler uses standard API response format
Phase: PHASE-2
Priority: P1
Progress: 32/267 (12.0%)
- DeleteAvatar handler was already implemented and standardized
- Added route: DELETE /users/:userId/avatar
- Handler validates user authentication and ownership
- Handler deletes avatar file from storage and updates database
- Handler uses standard API response format
Phase: PHASE-2
Priority: P1
Progress: 31/267 (11.6%)
