Summary

• Implemented 5 core services for the CCTracker application with complete functionality
• All services include proper TypeScript typing, error handling, and production-ready code
• Fixed IPC handlers and main.ts integration for seamless Electron communication

Services Implemented

1. UsageService

• JSONL parsing: Handles Claude CLI output with robust error handling
• Cost calculation: Uses MODEL_PRICING constants for accurate cost computation
• Data storage: Persistent storage with caching for performance
• Session tracking: Groups usage by sessions with statistics
• Data cleanup: Automatic old data removal based on retention policies

2. FileMonitorService

• Real-time monitoring: Uses chokidar for efficient file system watching
• Event handling: Emits events for file creation, modification, deletion
• JSONL detection: Automatically detects and processes Claude CLI output files
• Path management: Add/remove watch paths dynamically
• Resource cleanup: Proper cleanup of watchers and event listeners

3. SettingsService

• Settings management: Persistent storage of application settings
• Validation: Validates all settings with fallback to defaults
• Auto-save: Delayed saves to prevent excessive disk writes
• Import/export: JSON import/export functionality
• Change tracking: Detects and logs settings changes

4. CurrencyService

• Currency conversion: Supports USD, EUR, GBP, JPY, CNY, MYR
• Rate caching: Efficient caching with TTL for performance
• Auto-updates: Periodic rate updates (placeholder for real API)
• Format handling: Proper currency formatting with symbols
• Fallback handling: Graceful fallback to default rates

5. ExportService

• Multiple formats: Export to CSV, JSON, Excel, PDF
• Flexible options: Configurable export options (headers, summary, grouping)
• Data processing: Handles large datasets efficiently
• File management: Automatic file cleanup and listing
• Statistics: Export statistics and metadata

Technical Implementation

• Dependencies: Added uuid, chokidar with proper type definitions
• Error handling: Comprehensive error handling in all services
• Logging: Detailed logging for debugging and monitoring
• Performance: Efficient data processing with caching strategies
• TypeScript: Full type safety with proper interfaces

Test Plan

• TypeScript compilation successful
• IPC handlers properly connected
• Service initialization working
• Manual testing of individual services
• Integration testing with Electron renderer
• File monitoring functionality test
• Export functionality test

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores

  • Expanded and reorganized .gitignore with comprehensive ignore patterns for dependencies, build outputs, IDE files, OS files, logs, runtime data, coverage, caches, Electron build output, temporary folders, and Claude Code files.
  • Added new configuration files for Jest, ESLint, PostCSS, Tailwind CSS, TypeScript (main, renderer, base), and Webpack (main and renderer).
  • Added package.json with full project metadata, dependencies, devDependencies, scripts, build, and publishing configurations.
  • Added macOS entitlements and a code signing shell script.
  • Added global type declarations for Electron API in renderer.
  • Added GitHub Actions workflows for CI/CD, manual and automated builds, dependency updates, and security auditing.
  • Added centralized logging utility with multi-level logging and contextual convenience methods.
  • Added utility modules for constants, design tokens, date validation, and formatting helpers.

• New Features

  • Added core services: UsageService, FileMonitorService, SettingsService, CurrencyService, ExportService, CostCalculatorService, BackupService, AutoUpdaterService, and FileSystemPermissionService with full functionality, error handling, and IPC integration.
  • Implemented IPC handlers and preload API exposing comprehensive asynchronous methods for usage data, monitoring, settings, export, currency, cost calculation, updates, permissions, and backup.
  • Developed React UI components: App, Layout, Sidebar, Header, SettingsModal, LanguageSelector, UsageDashboard, SimpleUsageAnalytics, BusinessIntelligenceDashboard, ProjectDetailView, Onboarding, ThemedDatePicker.
  • Established React contexts for Settings, Theme, and UsageData with hooks for state management and updates.
  • Implemented internationalization with six fully localized languages (en, de, fr, es, ja, zh) using i18next.
  • Added currency conversion hook with real-time rate fetching, validation, and formatting.
  • Provided advanced analytics including model efficiency, usage trends, anomaly detection, predictive analytics, and business intelligence reporting.
  • Added export functionality supporting CSV, JSON, Excel, and PDF formats with configurable options and detailed BI reports.
  • Added backup and restore with scheduling, metadata management, compression, and cleanup.
  • Integrated auto-updater with user prompts, progress reporting, and error handling.
  • Added comprehensive onboarding wizard with multi-step instructions and localization.
  • Added rich theming support with system theme detection, multiple palettes, and chart theming utilities.
  • Implemented detailed project analytics with cost, tokens, cache efficiency, session details, and insights.
  • Added date/time formatting hook supporting 12/24 hour formats and localization.
  • Added extensive UI improvements with responsive design, animations, accessibility, and polished interactions.

• Bug Fixes

  • Fully resolved all critical bugs including type safety, error handling, IPC validation, UI update consistency, and calculation anomalies.
  • Improved defensive programming across multiple modules with validation and error logging.

• Documentation

  • Added comprehensive README, installation guide, architecture overview, project status, task tracking, and workflow documentation.
  • Added detailed markdown files for cost calculator service, usage data analysis, and GitHub workflows.
  • Added CLAUDE.md with detailed project and development guidelines.
  • Added PROVE.md with reproducible commands for data analysis and validation.

• Style

  • Developed a comprehensive global CSS integrating Tailwind CSS with multiple theme palettes, detailed animations, accessibility support, and custom component styles.
  • Enhanced UI components with semantic styling, responsive layouts, and smooth transitions.

• Tests

  • Added extensive unit and integration tests for core services and React components.
  • Configured Jest with ts-jest, environment setup, and global mocks for Electron API.
  • Included test suites covering UsageService and UsageDashboard components.