[EPIC] Service Integration Gaps

[DrunkOnJava]

📋 Epic Overview

Problem Statement

Critical service integrations are either missing or using mock implementations, preventing key features from functioning including payments, cloud sync, and receipt scanning.

Current State

• CloudKit falls back to mock storage
• StoreKit not integrated (no payments)
• OCR service disabled due to dependencies
• Email service using mock implementation
• BarcodeLookupService incomplete

Success Criteria

• CloudKit sync fully functional
• In-app purchases working via StoreKit
• OCR receipt scanning operational
• Email sharing capabilities enabled
• Barcode lookup with real API

Sub-Issues

• #TBD - Implement CloudKit Sync Service
• #TBD - Integrate StoreKit for Premium Features
• #TBD - Fix OCR Service Dependencies
• #TBD - Implement Email Service with MessageUI
• #TBD - Complete BarcodeLookupService Implementation
• #TBD - Add Natural Language Search
• #TBD - Implement Backup/Restore Service

Technical Approach

1. Replace mock implementations with real services
2. Add proper error handling and offline support
3. Implement retry mechanisms for network failures
4. Add comprehensive logging for debugging
5. Create integration tests for each service

Timeline

• Estimated Duration: 4-6 weeks
• Priority: P1 (Feature Completeness)

Dependencies

• CloudKit entitlements
• StoreKit configuration
• Vision framework (OCR)
• MessageUI framework
• Third-party APIs for barcode lookup

Risks & Mitigations

• Risk: API rate limits and costs
  • Mitigation: Implement caching and rate limiting
• Risk: Network reliability issues
  • Mitigation: Offline support and retry logic

Acceptance Criteria

• All services functioning in production
• Proper error handling for all failure modes
• Offline capabilities where applicable
• Performance meets requirements
• Integration tests passing

[DrunkOnJava]

Closing: This issue has been resolved/superseded by the complete modular architecture restructure now in main branch (commit 33a0ead). The new architecture implements a comprehensive solution that addresses the core needs this issue was tracking.