## Relevant Files

- `migrations/006_add_time_entries_table.sql` - Database migration for Time Entries table with proper indexing and foreign keys
- `lib/types/database.ts` - TypeScript interfaces for Time Entries entity
- `lib/types/autotask.ts` - TypeScript interfaces for Autotask Time Entries API response
- `lib/services/autotask-client.ts` - Extended Autotask client with Time Entries API methods
- `lib/services/entity-sync.ts` - Sync service integration for Time Entries
- `lib/utils/entity-mapper.ts` - Entity mapping functions for Time Entries
- `app/api/data/time-entries/route.ts` - API endpoint for fetching Time Entries data
- `app/api/sync/entity/route.ts` - Updated sync endpoint to include Time Entries
- `lib/services/analytics-engine.ts` - Core analytics engine for scoring and analysis
- `lib/services/llm-analyzer.ts` - LLM integration for work pattern analysis
- `lib/utils/scoring-algorithms.ts` - Scoring algorithms for Activity, Content, and Timeliness scores
- `components/analytics/TimelineView.tsx` - Main timeline component with collapsible sections
- `components/analytics/ScoreCard.tsx` - Component for displaying individual and aggregate scores
- `components/analytics/AnalysisPanel.tsx` - Component for AI insights and recommendations
- `components/analytics/TimeEntriesDashboard.tsx` - Main dashboard page component
- `app/admin/analytics/time-entries/page.tsx` - Time Entries analytics page
- `lib/utils/time-helpers.ts` - Utility functions for time-based calculations and formatting
- `lib/utils/chart-helpers.ts` - Utility functions for chart data preparation
- `hooks/use-time-entries.ts` - React hook for Time Entries data fetching and state management
- `hooks/use-analytics.ts` - React hook for analytics calculations and scoring

### Notes

- Unit tests should typically be placed alongside the code files they are testing (e.g., `MyComponent.tsx` and `MyComponent.test.tsx` in the same directory).
- Use `npx jest [optional/path/to/test/file]` to run tests. Running without a path executes all tests found by the Jest configuration.

## Tasks

- [x] 1.0 Database Schema and Data Synchronization Setup
  - [x] 1.1 Create Time Entries database migration with all required fields (id, resource_id, ticket_id, task_id, project_id, entry_date, hours_worked, notes, created_date, updated_date, etc.)
  - [x] 1.2 Add proper indexing for time-based queries and foreign key relationships to existing tables
  - [x] 1.3 Define TypeScript interfaces for Time Entries in database and Autotask API types
  - [x] 1.4 Create entity mapping functions to convert Autotask Time Entries data to PostgreSQL schema
  - [x] 1.5 Add Time Entries to the sync service configuration and entity types

- [x] 2.0 Time Entries API Integration and Sync Service
  - [x] 2.1 Extend Autotask client to support Time Entries API endpoints (query, get by ID, pagination)
  - [x] 2.2 Implement pagination handling for large historical Time Entries datasets
  - [x] 2.3 Add error handling for API rate limits and data inconsistencies specific to Time Entries
  - [x] 2.4 Create API endpoint for fetching Time Entries data with filtering and sorting capabilities
  - [x] 2.5 Implement initial historical data import and ongoing real-time synchronization
  - [x] 2.6 Add Time Entries sync to the existing sync service and entity sync methods

- [ ] 3.0 Analytics Engine and Scoring System Development
  - [x] 3.1 Develop core analytics engine for processing Time Entries data and generating insights
  - [x] 3.2 Implement Activity Score calculation based on entry quality, completeness, and work patterns
  - [x] 3.3 Implement Content Score calculation based on time entry description quality and detail
  - [x] 3.4 Implement Timeliness Score calculation based on entry timing relative to work performed
  - [x] 3.5 Create LLM integration service for work pattern analysis and insight generation
  - [x] 3.6 Implement caching for AI analysis results to improve performance and reduce API costs
  - [x] 3.7 Add background processing for batch analysis of historical Time Entries data

- [x] 3.0 Analytics Engine and Scoring System Development

- [ ] 4.0 Timeline View and User Interface Components
  - [x] 4.1 Create collapsible timeline component with multiple time range options (Hour, Day, Week, Month)
  - [x] 4.2 Implement visual distinction between human and system activities with color coding
  - [x] 4.3 Add key moment highlighting for ticket creation, status changes, and resolution events
  - [x] 4.4 Create expandable/collapsible time period sections with smooth animations
  - [x] 4.5 Implement time worked indicators and duration displays for each entry
  - [x] 4.6 Create Score Card components for displaying individual and aggregate scores
  - [x] 4.7 Build Analysis Panel component for AI insights and recommendations
  - [x] 4.8 Implement responsive design for desktop and tablet viewing

- [ ] 5.0 Analytics Dashboard and Integration
  - [x] 5.1 Create main Time Entries analytics dashboard page accessible from admin menu
  - [x] 5.2 Implement filtering capabilities by resource, project, ticket, task, and activity type
  - [x] 5.3 Build both detailed single-ticket views and summary dashboard views
  - [x] 5.4 Add export capabilities for analysis results and reports (CSV, Excel, PDF)
  - [x] 5.5 Integrate Time Entries analytics with existing entities for enriched analysis
  - [x] 5.6 Create React hooks for Time Entries data fetching and analytics state management
  - [x] 5.7 Add Time Entries analytics to the admin navigation and data browser if applicable
  - [x] 5.8 Implement performance optimizations for large datasets and caching strategies

- [x] 5.0 Analytics Dashboard and Integration
