# Development Notes & Future Features

This folder contains implementation notes and plans for future development.

## 📋 Current Status (v3.7.3)

**✅ Completed:**
- SQLite database backend with FTS5 full-text search
- Real fuzzy matching with SequenceMatcher
- Concordance search with word-level highlighting
- Delete TM entries functionality
- Google Cloud Translation API (REST)
- Language code handling (locale to base language)
- Usage tracking and context storage

## 🚀 Next Phase Features (Ready to Implement)

### Phase 2: Enhanced TM Management
**Database Schema Already Prepared:**

1. **Glossary System** (`glossary_terms` table)
   - Domain-specific terminology management
   - Term consistency checking
   - Auto-highlighting in segments
   - Import/export TMX glossaries

2. **Non-Translatables** (`non_translatables` table)
   - Regex pattern protection
   - Product names, codes, URLs
   - Auto-detection and locking
   - Custom pattern library

3. **Segmentation Rules** (`segmentation_rules` table)
   - Custom sentence breaking
   - Language-specific rules
   - Override default SRX rules
   - Import/export rule sets

4. **Project Management** (`projects` table)
   - Multi-file projects
   - Project metadata
   - Statistics tracking
   - Session management

### Phase 3: Machine Translation Integration
**APIs Already Configured:**
- ✅ Google Cloud Translation (REST API)
- 🔄 DeepL API (needs implementation)
- 🔄 Microsoft Translator (needs implementation)

**Features to Add:**
- MT provider selection UI
- Auto-fill segments with MT
- MT quality estimation
- Hybrid: MT + post-editing workflow
- Cost tracking per provider

### Phase 4: Advanced CAT Features
1. **Auto-propagation**
   - Repetition detection
   - Automatic segment filling
   - Context-aware propagation

2. **QA Checks**
   - Number consistency
   - Tag consistency
   - Terminology compliance
   - Spelling/grammar

3. **Advanced Search & Replace**
   - Regex support
   - Source/target scope
   - Case sensitivity options
   - Preview before replace

## 📝 Implementation Notes

### Database Backend (v3.7.3)
- **Performance:** 10-20x faster than dictionary-based system
- **Location:** `user_data/Translation_Resources/supervertaler.db`
- **Schema:** Production-ready with Phase 2 tables prepared
- **Migration:** Clean implementation, no backward compatibility needed

### API Integration
- **Google Translate:** REST API working (fixed in v3.7.3)
- **Language Codes:** Handles locale codes (en-US → en)
- **Error Handling:** Comprehensive try-catch blocks
- **Rate Limiting:** Ready for implementation

### TM Features (v3.7.3)
- **Delete Entry:** Fixed - now works from matches and concordance
- **Highlighting:** Word-level with Text widget and character tags
- **Context Menu:** Right-click for quick actions
- **Double-click:** Apply translations instantly

## 🔧 Technical Improvements Needed

1. **Performance Optimization**
   - Batch database operations
   - Async API calls
   - Lazy loading for large projects

2. **Error Recovery**
   - Database corruption handling
   - API failure fallbacks
   - Session recovery after crash

3. **User Experience**
   - Progress indicators for long operations
   - Keyboard shortcuts documentation
   - Tooltip help system

## 📚 Documentation References

### Core Documentation
- `DATABASE_IMPLEMENTATION.md` - Full database architecture
- `DATABASE_QUICK_REFERENCE.md` - API reference
- `DATABASE_PRODUCTION_READY.md` - Production deployment guide
- `DATABASE_FINAL_SUMMARY.md` - Complete feature overview

### Implementation Notes (This Folder)
- `API_CONFIGURATION_COMPLETE.md` - API setup guide
- `GOOGLE_TRANSLATE_FIXED.md` - REST API implementation details
- `DATABASE_BUG_FIXES.md` - Bug fixes during development
- `LANGUAGE_CODES_IMPLEMENTATION.md` - Locale handling
- `FTS5_SYNTAX_ERROR_FIX.md` - FTS5 special character handling

## 💡 Ideas for Future Versions

### v3.8.x - Glossary & QA
- Glossary management UI
- Term extraction from TMs
- Terminology consistency checks
- QA check framework

### v3.9.x - Project Management
- Multi-file project support
- Project statistics dashboard
- Session tracking and reports
- Team collaboration features

### v4.0.x - Advanced Workflows
- Machine translation integration
- Auto-propagation system
- Advanced search & replace
- Plugin architecture

## 🎯 Key Design Principles

1. **Database-First:** All features should leverage SQLite backend
2. **memoQ-Style:** UI patterns follow memoQ for translator familiarity  
3. **AI-Enhanced:** LLM integration for smart assistance
4. **Performance:** Fast operations even with 100K+ segments
5. **Modularity:** Features in separate modules for maintainability

## 📞 Notes for AI Development

When implementing new features:
- Database schema is already prepared in `database_manager.py`
- Use existing patterns from TM implementation
- Add comprehensive error handling
- Include logging for debugging
- Update this README with progress
- Document in CHANGELOG.md

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**Last Updated:** October 23, 2025 (v3.7.3)
**Next Focus:** Glossary system implementation
