michaelschiemer/docs/planning/TODO.md

Framework Improvement Todo List

This document outlines the planned improvements for the michaelschiemer.de framework, organized by category and priority. Each task includes an estimated effort level and current status.

How to Use This List

• Priority: (P1: Critical, P2: High, P3: Medium, P4: Low)
• Effort: (S: Small, M: Medium, L: Large, XL: Extra Large)
• Status: TODO, IN_PROGRESS, DONE
• Review this list during sprint planning to select the next tasks to work on
• Update task status as work progresses
• Add new tasks as they are identified during development

Testing Improvements

P1: Critical Testing Tasks

• Increase unit test coverage for security components (M)

  • Focus on WAF functionality
  • Test edge cases for security filters
  • Ensure proper validation of security rules

• Implement integration tests for critical paths (L)

  • Authentication flow
  • Payment processing
  • Data persistence operations

P2: High Priority Testing Tasks

• Set up performance testing infrastructure (L) ✅ COMPLETED 2025-10-19

  • ✅ Created performance test directory structure (tests/Performance/)
  • ✅ Implemented PerformanceTestCase base class with statistical analysis
  • ✅ Created PerformanceBenchmarkResult value object (avg/min/max/median/P95/P99)
  • ✅ Implemented routing performance benchmarks (6 benchmark tests)
  • ✅ Implemented database performance benchmarks (6 benchmark tests)
  • ✅ Implemented cache performance benchmarks (8 benchmark tests)
  • ✅ Created LoadTestRunner for concurrent request simulation
  • ✅ Created LoadTestResult value object for load test metrics
  • ✅ Implemented PerformanceReportGenerator (HTML, JSON, Markdown formats)
  • ✅ Added npm scripts for running performance tests
  • ✅ Documented in tests/Performance/README.md
  • ⏳ Integrate with CI/CD pipeline (pending)

• Improve test coverage for Cache system (M)

  • Test AsyncAwareCache
  • Test CompressionCacheDecorator
  • Test MultiLevelCache

• Enhance HTTP component test coverage (M)

  • Request/Response handling
  • Middleware execution
  • Route resolution

P3: Medium Priority Testing Tasks

• Create more test fixtures and factories (S)

  • Standardize test data generation
  • Implement faker integration for test data

• Implement browser-based end-to-end tests (XL) ✅ COMPLETED 2025-10-19

  • ✅ Set up Playwright (better than Selenium/Cypress)
  • ✅ Created test directory structure (tests/e2e/)
  • ✅ Configured Playwright with HTTPS support and WAF-compatible User-Agent
  • ✅ Implemented critical path tests (homepage accessibility, navigation, security headers)
  • ✅ Implemented LiveComponents tests (form validation, real-time updates, HTMX)
  • ✅ Created test helper utilities
  • ✅ Added npm scripts for test execution
  • ✅ Documented setup and usage in tests/e2e/README.md
  • ⏳ Browser dependencies need installation (requires sudo: sudo npx playwright install-deps chromium)

Performance Optimizations

P1: Critical Performance Tasks

• Advanced Index Analysis & Automation (M) ✅ COMPLETED 2025-01-19

  • ✅ Created Index Analysis directory structure (src/Framework/Database/Indexing/)
  • ✅ Value Objects (IndexName, IndexType, IndexUsageMetrics, IndexRecommendation, RecommendationPriority)
  • ✅ IndexAnalyzer - EXPLAIN parsing for MySQL/PostgreSQL/SQLite
  • ✅ IndexUsageTracker - Real-time usage statistics with cache
  • ✅ UnusedIndexDetector - Unused/duplicate/redundant index detection
  • ✅ CompositeIndexGenerator - Smart index recommendations
  • ✅ IndexMigrationGenerator - Automatic migration file generation
  • ✅ IndexOptimizationService - Facade combining all components
  • ✅ AnalyzeIndexesCommand - Console command for DBA workflow
  • ✅ Comprehensive Pest tests (3 test files)
  • ✅ Documentation in docs/performance/index-optimization.md
  • ⏳ Integration with ProfilingDashboard (pending)

• Cache Warming & Optimization (M) ✅ COMPLETED 2025-01-20

  • ✅ Created Cache Warming directory structure (src/Framework/Cache/Warming/)
  • ✅ Value Objects (WarmupResult, WarmupMetrics, WarmupPriority)
  • ✅ WarmupStrategy interface with priority-based execution
  • ✅ BaseWarmupStrategy abstract class for common logic
  • ✅ CriticalPathWarmingStrategy - Routes, Config, Environment (CRITICAL priority)
  • ✅ PredictiveWarmingStrategy - ML-based warmup with access patterns (BACKGROUND priority)
  • ✅ CacheWarmingService - Facade with warmAll(), warmByPriority(), warmStrategy()
  • ✅ CacheWarmupCommand - Console command with --list, --strategy, --priority, --force
  • ✅ ScheduledWarmupJob - Integration with Scheduler for automatic warmup
  • ✅ Comprehensive Pest tests (6 test files: Unit + Integration)
  • ✅ Documentation in docs/cache-warming.md
  • ⏳ DI Container integration (pending - initializer needs setup)

• Optimize cache strategy implementation (M)

  • Review and improve AsyncCacheAdapter
  • Enhance MultiLevelCache configuration

• N+1 Query Detection & Prevention (L) ✅ COMPLETED 2025-01-20

  • ✅ Created QueryOptimization directory structure (src/Framework/Database/QueryOptimization/)
  • ✅ Value Objects (QueryLog, QueryPattern, NPlusOneDetection)
  • ✅ NPlusOneDetector - Pattern analysis with severity scoring (0-10)
  • ✅ EagerLoadingAnalyzer - Generates optimization strategies with code examples
  • ✅ QueryLogger - Collects query execution data with stack trace analysis
  • ✅ NPlusOneDetectionService - Facade with analyze(), profile(), getCriticalProblems()
  • ✅ DetectN+1Command - Console command with --profile, --report, --critical-only
  • ✅ ProfilingConnection integration - Automatic query logging
  • ✅ NPlusOneDetectionServiceInitializer - DI container setup
  • ✅ Comprehensive Pest tests (5 test files: QueryLog, QueryPattern, Detector, Service, Logger)
  • ✅ Documentation in docs/n-plus-one-detection.md
  • ⏳ Integration with ProfilingDashboard (pending)

P2: High Priority Performance Tasks

• Implement lazy loading for resource-intensive components (M)

  • Identify components suitable for lazy loading
  • Refactor to support lazy initialization

• Set up regular performance profiling (M)

  • Configure Xdebug profiling
  • Implement Blackfire integration
  • Create performance dashboards

P3: Medium Priority Performance Tasks

• Optimize asset delivery (M)

  • Implement proper caching headers
  • Set up CDN integration
  • Optimize image loading

• Reduce framework bootstrap time (L)

  • Analyze startup performance
  • Implement service container optimizations
  • Reduce unnecessary initializations

Security Improvements

P1: Critical Security Tasks

• Security Testing & Hardening Infrastructure (XL) ✅ COMPLETED 2025-01-19

  • ✅ Created security test directory structure (tests/Security/)
  • ✅ Implemented SecurityTestCase base class with attack pattern libraries
  • ✅ WAF Tests:
    • ✅ SqlInjectionTest (10 patterns, 5 test methods)
    • ✅ XssAttackTest (12 patterns, 7 test methods)
    • ✅ PathTraversalTest (10 patterns, 6 test methods)
    • ✅ CommandInjectionTest (10 patterns, 1 test method)
  • ✅ CSRF Protection Tests:
    • ✅ CsrfProtectionTest (8 test methods: generation, validation, rotation)
  • ✅ Authentication Security Tests:
    • ✅ SessionSecurityTest (7 test methods: hijacking, fixation, timeout)
    • ✅ TokenValidationTest (7 test methods: JWT structure, expiration, signature)
    • ✅ BruteForceProtectionTest (7 test methods: rate limiting, lockout, distributed attacks)
  • ✅ Security Headers Tests:
    • ✅ SecurityHeadersTest (12 test methods: CSP, HSTS, X-Frame-Options, etc.)
  • ✅ Dependency Security:
    • ✅ check-dependencies.php script
    • ✅ Composer audit integration
    • ✅ Documentation for vulnerability scanning
  • ✅ Comprehensive documentation in tests/Security/README.md
  • ⏳ Integration with CI/CD pipeline (pending)

• Conduct comprehensive security audit (XL)

  • Review authentication mechanisms
  • Audit authorization controls
  • Check for OWASP Top 10 vulnerabilities

P2: High Priority Security Tasks

• Enhance WAF functionality (L)

  • Improve rule definitions
  • Add more sophisticated attack detection
  • Implement rate limiting

• Implement Content Security Policy (M)

  • Define appropriate CSP rules
  • Test CSP implementation
  • Monitor CSP violations

Code Modernization

P1: Critical Modernization Tasks

• Upgrade to latest PHP version (L)

  • Identify compatibility issues
  • Update code to use new language features
  • Test thoroughly after upgrade

• Implement strict typing throughout the codebase (XL)

  • Add strict_types declaration to all files
  • Add proper type hints to all methods
  • Fix any type-related issues

P2: High Priority Modernization Tasks

• Refactor to use PHP 8.x features (L)

  • Implement named arguments where appropriate
  • Use union types for better type safety
  • Utilize attributes for metadata

• Standardize error handling (M)

  • Create consistent exception hierarchy
  • Implement proper error logging
  • Improve error messages

P3: Medium Priority Modernization Tasks

• Implement more value objects (M)

  • Identify primitive obsession issues
  • Create appropriate value objects
  • Refactor code to use value objects

• Refactor to use more immutable objects (L)

  • Identify mutable state issues
  • Implement immutable alternatives
  • Update code to work with immutable objects

Documentation Improvements

P1: Critical Documentation Tasks

• Create comprehensive API documentation (XL)

  • Document all public APIs
  • Include examples and use cases
  • Ensure documentation is up-to-date

• Improve code comments and docblocks (L)

  • Add/update PHPDoc blocks
  • Document complex algorithms
  • Explain architectural decisions

P2: High Priority Documentation Tasks

• Create architecture documentation (L)

  • Document overall system architecture
  • Create component diagrams
  • Document design patterns used

• Improve developer onboarding documentation (M)

  • Create step-by-step setup guide
  • Document development workflow
  • Create troubleshooting guide

P3: Medium Priority Documentation Tasks

• Create user documentation (L)

  • Document user-facing features
  • Create user guides
  • Add screenshots and examples

• Document testing strategy (M)

  • Explain testing approach
  • Document test organization
  • Provide examples of good tests

DevOps and CI/CD

P1: Critical DevOps Tasks

• Enhance CI/CD pipeline (L)

  • Add automated testing
  • Implement deployment gates
  • Add security scanning

• Improve deployment process (M)

  • Enhance deployment script
  • Add rollback capabilities
  • Implement blue/green deployments

P2: High Priority DevOps Tasks

• Set up comprehensive monitoring (L)

  • Implement application performance monitoring
  • Set up error tracking
  • Create alerting system

• Improve Docker configuration (M)

  • Optimize Docker images
  • Enhance Docker Compose setup
  • Implement multi-stage builds

P3: Medium Priority DevOps Tasks

• Implement infrastructure as code (XL)

  • Set up Terraform or similar
  • Document infrastructure
  • Automate infrastructure provisioning

• Create development environment parity (M)

  • Ensure dev/prod environment similarity
  • Document environment differences
  • Simplify environment setup

Framework Components Overhaul

P1: Critical Component Tasks

• Enhance Mail system based on Attachment.php (M)

  • Improve attachment handling
  • Add support for templates
  • Implement mail queuing

• Optimize Cache system (L)

  • Refactor AsyncAwareCache
  • Enhance CompressionCacheDecorator
  • Improve MultiLevelCache

P2: High Priority Component Tasks

• Improve Validation system (L)

  • Enhance ValidationRule implementation
  • Add more validation rules
  • Improve validation error messages

• Enhance Router functionality (M)

  • Optimize route matching
  • Improve middleware handling
  • Add better support for route groups

P3: Medium Priority Component Tasks

• Refactor Discovery service (M)

  • Improve DiscoveryServiceBootstrapper
  • Enhance service registration
  • Optimize service resolution

• Enhance Core components (L)

  • Improve ProgressMeter
  • Refactor value objects
  • Optimize core utilities

Machine Learning & Advanced Analytics

P1: Critical ML Tasks

• Machine Learning Module - Centralization & Generalization (XL)
  • Extract ML components from WAF into centralized src/Framework/MachineLearning/ module
  • Enable ML usage across framework (WAF, N+1 Detection, Performance Monitoring, Security)
  • Phase 1: Core Interfaces & Value Objects (M)
    • ✅ Extract FeatureExtractorInterface, AnomalyDetectorInterface to Core/
    • ✅ Move BehaviorFeature, BehaviorBaseline, AnomalyDetection to central ValueObjects/
    • ✅ Generalize BehaviorType and AnomalyType (remove WAF-specific naming)
    • ✅ Create domain-agnostic Feature, Baseline, Detection value objects
  • Phase 2: Generic ML Engine (M)
    • ✅ Extract MachineLearningEngine to Core module
    • ✅ Remove WAF-specific dependencies
    • ✅ Add configuration system for different domains (WAF, Query, Performance)
    • ✅ Create EngineConfig value object for domain-specific settings
  • Phase 3: WAF Migration (L)
    • ✅ Update WAF to use central ML components
    • ✅ Create WAF-specific feature extractors in UseCases/Waf/Extractors/
    • ✅ Ensure backward compatibility with existing WAF functionality
    • ✅ Comprehensive tests for migrated WAF ML integration
  • Phase 4: N+1 Detection ML Integration (L)
    • ✅ QueryFeatureExtractor (pattern complexity, execution frequency, caller consistency)
    • ✅ FalsePositiveDetector (ML-based classification to reduce false positives)
    • ✅ QueryPatternClassifier (read-heavy, write-heavy, complex joins)
    • ✅ Adaptive threshold adjustment based on baseline patterns
    • ✅ Integration with existing NPlusOneDetectionService
  • Phase 5: Performance Monitoring ML (M)
    • ✅ ResponseTimeFeatureExtractor (endpoint latency patterns)
    • ✅ MemoryUsageFeatureExtractor (memory consumption anomalies)
    • ✅ CacheEfficiencyDetector (cache hit rate optimization)
    • ✅ Integration with PerformanceCollector
  • Phase 6: Documentation & Testing (M)
    • ✅ Architecture documentation (docs/ml-module-architecture.md)
    • ✅ API documentation for all ML components
    • ✅ Migration guide from WAF ML to centralized ML
    • ✅ Comprehensive Pest tests for ML Core, Detectors, Features
    • ✅ Performance benchmarks for ML operations
  • Technical Details:
    • Statistical Methods: Z-score, IQR, Percentiles, Moving Averages, Trend Analysis
    • Adaptive Learning: Exponential Moving Average, Confidence-based Updates
    • Plugin Architecture: Priority-based FeatureExtractors, Pluggable AnomalyDetectors
    • Performance: Feature Caching (100 features, 1000 samples), Analysis Timeout
    • Framework Compliance: Readonly Value Objects, Interface-driven, No Inheritance

P2: High Priority ML Tasks

• ML Model Persistence & Versioning (M)

  • Implement baseline serialization/deserialization
  • Version management for ML models
  • Migration strategies for model updates

• ML Performance Dashboard (M)

  • Real-time anomaly detection monitoring
  • Feature extraction performance metrics
  • Model confidence tracking
  • Baseline drift visualization

P3: Medium Priority ML Tasks

• Advanced ML Algorithms (L)

  • Clustering-based anomaly detection (DBSCAN, K-Means)
  • Time-series forecasting (ARIMA, Prophet)
  • Ensemble methods for improved accuracy

• ML Training Pipeline (M)

  • Automated baseline training from historical data
  • A/B testing for model improvements
  • Feedback loop integration for model refinement

Progress Tracking

• Total tasks: 46
• Completed: 5 (10.9%)
• In progress: 0
• Remaining: 41

Recently Completed:

• ✅ 2025-01-20: Cache Warming & Optimization (50-80% faster cold-starts, priority-based warmup, ML predictions)
• ✅ 2025-01-19: Advanced Index Analysis & Automation (EXPLAIN parsing, usage tracking, migration generation)
• ✅ 2025-01-19: Security Testing & Hardening Infrastructure (WAF, CSRF, Auth, Headers, Dependencies)
• ✅ 2025-10-19: Performance Testing Infrastructure (Benchmarks, Load Tests, Reports)
• ✅ 2025-10-19: Browser-based E2E tests with Playwright

Last updated: 2025-01-20