Implemented centralized service for managing multiple LLM provider instances.
Architecture:
- LlmManagerService manages provider lifecycle and selection
- Loads provider instances from Prisma database on startup
- Maintains in-memory registry of active providers
- Factory pattern for provider instantiation
Core Features:
- Database integration via PrismaService
- Provider initialization on module startup (OnModuleInit)
- Get provider by ID
- Get all active providers
- Get system default provider
- Get user-specific provider with fallback to system default
- Health check all registered providers
- Dynamic registration/unregistration (hot reload)
- Reload from database without restart
Provider Selection Logic:
- User-level providers: userId matches, is enabled
- System-level providers: userId is NULL, is enabled
- Fallback: system default if no user provider found
- Graceful error handling with detailed logging
Integration:
- Added to LlmModule providers and exports
- Uses PrismaService for database queries
- Factory creates OllamaProvider from config
- Extensible for future providers (Claude, OpenAI)
Testing:
- 31 comprehensive unit tests
- 93.05% code coverage (exceeds 85% requirement)
- All error scenarios covered
- Proper mocking of dependencies
Quality Gates:
- ✅ All 31 tests passing
- ✅ 93.05% coverage
- ✅ Linting clean
- ✅ Type checking passed
- ✅ Code review approved
Fixes#126
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Jason Woltje
be6c15116d