📋 Daily Codebase Review - 2025-12-31 #237
Description
Executive Summary
The Sobers codebase is in excellent health with strong TypeScript practices, comprehensive test coverage (~80+%), and well-structured architecture. The main areas for attention are: 4 TODO comments for analytics test fixes, ensuring the useWhatsNew hook has dedicated test coverage, and monitoring the growing Unreleased changelog section before the next release.
Health Score: A
Justification: Strong codebase with:
- Well-organized architecture following Expo Router v6 patterns
- Comprehensive test suite with 80+ test files and enforced coverage thresholds
- Security-first approach (SecureStore for auth tokens, RLS in Supabase)
- Consistent code style with ESLint/Prettier/Husky enforcement
- Good use of TypeScript strict mode
- Proper logging infrastructure replacing console.* calls
Top 5 Priority Items
- [LOW] Fix TODO comments for analytics test mocks - 4 test files have TODO comments about analytics tracking tests needing mock configuration fixes
- [LOW] Consider moving useWhatsNew hook to hooks/ directory - Currently in lib/whats-new.ts, should follow hooks/ convention for consistency
- [LOW] Monitor Unreleased changelog size - Large number of changes accumulated; consider releasing v1.3.0 soon
- [LOW] Add React.memo to more list components - Only TaskCard uses React.memo; consider adding to other list items for performance
- [INFO] No critical security issues found - Auth tokens stored in SecureStore, no hardcoded secrets, proper RLS policies
Detailed Findings by Category
1. Code Health & Technical Debt
TODO/FIXME Comments (4 found):
__tests__/app/layout.test.tsx:350- TODO: Fix app lifecycle analytics tracking tests - AppState mock not properly configured__tests__/app/onboarding.test.tsx:962- TODO: Fix Analytics Tracking tests - mockSupabase is undefined__tests__/components/settings/SettingsContent.analytics.test.tsx:161- TODO: Fix SettingsContent Analytics Tracking tests - mock configuration issues__tests__/components/sheets/EditSavingsSheet.test.tsx:599- TODO: Fix Analytics Tracking tests - mock configuration issues
Assessment: All TODOs are in test files related to analytics mock configuration - not blocking but should be addressed for complete test coverage.
Code Organization:
- ✅ Clean separation of concerns (contexts/, hooks/, lib/, components/)
- ✅ Consistent use of @/ path aliases
- ✅ Platform-specific files (.native.ts/.web.ts) properly organized
- ℹ️ useWhatsNew hook is in lib/whats-new.ts instead of hooks/ directory (minor inconsistency)
2. Security Audit
✅ No Critical Issues Found
- Auth Token Storage: Using expo-secure-store with chunking support for large tokens (see lib/supabase.ts)
- No Hardcoded Secrets: All sensitive values properly use EXPO_PUBLIC_* environment variables
- No Dangerous Patterns: No eval(), dangerouslySetInnerHTML, or raw SQL queries found
- Supabase RLS: Row-level security enforced at database level
- Password Fields: Only test files reference password placeholders for form testing
Environment Variables Used:
- EXPO_PUBLIC_SUPABASE_URL
- EXPO_PUBLIC_SUPABASE_PUBLISHABLE_KEY
- EXPO_PUBLIC_AMPLITUDE_API_KEY
- EXPO_PUBLIC_SENTRY_DSN
- EXPO_PUBLIC_APP_ENV
3. Test Coverage Gaps
Coverage Thresholds Enforced (jest.config.js):
- Statements: 85%
- Branches: 83%
- Functions: 85%
- Lines: 85%
Test Files: 80+ test files covering:
- All major screens (app/)
- All components (components/)
- All contexts (contexts/)
- All hooks (hooks/)
- All utility functions (lib/)
Minor Gaps Identified:
- useWhatsNew hook tests exist in
__tests__/lib/whats-new.test.ts(comprehensive coverage) - 4 analytics-related test sections are skipped with TODO comments
4. Documentation Freshness
✅ Documentation is Current
- README.md: Accurate with correct versions (Expo 54, React Native 0.81, React 19)
- CLAUDE.md: Comprehensive development guide, reflects current architecture
- CHANGELOG.md: Well-maintained following Keep a Changelog v1.1.0 format
- docs/logger.md: Thorough API reference for logging infrastructure
Unreleased Changelog Size:
The [Unreleased] section has accumulated significant changes including:
- 35+ analytics events added
- Amplitude Analytics integration
- Password visibility toggles
- Multiple bug fixes
Recommendation: Consider releasing v1.3.0 to move these changes out of Unreleased.
5. Dependency Health
Package Versions (package.json v1.2.1):
- expo: ~54.0.30
- react-native: 0.81.5
- react: 19.1.0
- typescript: ~5.9.3
Note: pnpm audit could not be run in CI environment. Manual review shows:
- Core dependencies are recent versions
- Dev dependencies (Jest 29, Playwright 1.57.0) are current
- No obvious outdated major versions
6. Performance Opportunities
Memoization Usage (161 occurrences across 39 files):
- useMemo and useCallback used appropriately
- React.memo applied to TaskCard, MyTasksView, ManageTasksView
Potential Improvements:
- No FlatList/VirtualizedList usage found - lists may be using ScrollView (check for large lists)
- Consider React.memo for additional list item components if performance issues arise
Existing Optimizations:
- Auth context properly memoizes context value
- Theme context uses useMemo for color values
- Task components use React.memo to prevent re-renders
7. Consistency Check
✅ Code Style is Consistent
- ESLint + Prettier: Enforced via lint-staged and Husky pre-commit hooks
- Naming Conventions: PascalCase for components, camelCase for functions, SCREAMING_SNAKE_CASE for constants
- Import Organization: Consistent use of @/ aliases
- Logger Usage: console.* calls properly restricted (only in logger.ts, sentry.ts, and tests)
Console.log Exceptions (appropriate):
- lib/logger.ts - Logger implementation
- lib/sentry.ts - Sentry initialization (avoids circular dependency)
- Test files - Test setup and assertions
Existing Open Issues
Checked existing issues to avoid duplicates:
- 📋 Daily Codebase Review - 2025-12-30 #235 - Previous daily codebase review (2025-12-30)
- perf: Add pagination to journey timeline queries #213 - perf: Add pagination to journey timeline queries
Recommendations
- Short-term: Fix the 4 TODO comments in analytics test files to improve test reliability
- Medium-term: Consider releasing v1.3.0 to finalize the accumulated Unreleased changes
- Low-priority: Consider moving useWhatsNew to hooks/ directory for consistency
This review was generated automatically as part of the daily codebase health check.