159 lines
6.2 KiB
Markdown
159 lines
6.2 KiB
Markdown
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# Word of Wisdom Server - Implementation Plan
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## Phase 1: Project Setup & Core Architecture
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- [ ] Initialize Go module and project structure
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- [ ] Set up dependency injection framework (wire/dig)
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- [ ] Create core interfaces and contracts
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- [ ] Set up structured logging (zerolog/logrus)
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- [ ] Set up metrics collection (prometheus)
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- [ ] Create configuration management
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- [ ] Set up testing framework and test utilities
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## Phase 2: Proof of Work Implementation
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- [ ] Implement PoW challenge generation service
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- [ ] Implement SHA-256 based PoW algorithm
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- [ ] Create challenge storage interface (in-memory fake)
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- [ ] Implement solution verification logic
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- [ ] Add difficulty adjustment mechanism
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- [ ] Create PoW service with full DI support
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- [ ] Write comprehensive unit tests for PoW components
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## Phase 3: Quote Management System
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- [ ] Define quote storage interface
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- [ ] Implement in-memory quote repository (fake)
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- [ ] Create quote selection service (random)
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- [ ] Load initial quote collection from file/config
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- [ ] Add quote validation and sanitization
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- [ ] Write unit tests for quote management
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## Phase 4: TCP Protocol Implementation
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- [ ] Implement binary message protocol codec
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- [ ] Create protocol message types and structures
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- [ ] Implement connection handler with proper error handling
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- [ ] Add message serialization/deserialization (JSON)
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- [ ] Create protocol state machine
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- [ ] Implement connection lifecycle management
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- [ ] Write unit tests for protocol components
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## Phase 5: Server Core & Request Handling
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- [ ] Implement TCP server with connection pooling
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- [ ] Create request router and handler dispatcher
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- [ ] Add connection timeout and lifecycle management
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- [ ] Implement graceful shutdown mechanism
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- [ ] Add request/response logging middleware
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- [ ] Create health check endpoints
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- [ ] Write integration tests for server core
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## Phase 6: DDOS Protection & Rate Limiting
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- [ ] Implement IP-based connection limiting
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- [ ] Create rate limiting service with time windows
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- [ ] Add automatic difficulty adjustment based on load
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- [ ] Implement temporary IP blacklisting
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- [ ] Create circuit breaker for overload protection
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- [ ] Add monitoring for attack detection
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- [ ] Write tests for protection mechanisms
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## Phase 7: Observability & Monitoring
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- [ ] Add structured logging throughout application
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- [ ] Implement metrics for key performance indicators:
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- [ ] Active connections count
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- [ ] Challenge generation rate
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- [ ] Solution verification rate
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- [ ] Success/failure ratios
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- [ ] Response time histograms
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- [ ] Create logging middleware for request tracing
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- [ ] Add error categorization and reporting
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- [ ] Implement health check endpoints
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## Phase 8: Configuration & Environment Setup
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- [ ] Create configuration structure with validation
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- [ ] Support environment variables and config files
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- [ ] Add configuration for different environments (dev/prod)
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- [ ] Implement feature flags for protection levels
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- [ ] Create deployment configuration templates
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- [ ] Add configuration validation and defaults
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## Phase 9: Client Implementation
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- [ ] Create client application structure
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- [ ] Implement PoW solver algorithm
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- [ ] Create client-side protocol implementation
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- [ ] Add retry logic and error handling
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- [ ] Implement connection management
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- [ ] Create CLI interface for client
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- [ ] Add client metrics and logging
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- [ ] Write client unit and integration tests
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## Phase 10: Docker & Deployment
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- [ ] Create multi-stage Dockerfile for server
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- [ ] Create Dockerfile for client
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- [ ] Create docker-compose.yml for local development
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- [ ] Add docker-compose for production deployment
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- [ ] Create health check scripts for containers
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- [ ] Add environment-specific configurations
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- [ ] Create deployment documentation
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## Phase 11: Testing & Quality Assurance
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- [ ] Write comprehensive unit tests (>80% coverage):
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- [ ] PoW algorithm tests
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- [ ] Protocol handler tests
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- [ ] Rate limiting tests
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- [ ] Quote service tests
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- [ ] Configuration tests
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- [ ] Create integration tests:
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- [ ] End-to-end client-server communication
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- [ ] Load testing scenarios
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- [ ] Failure recovery tests
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- [ ] DDOS protection validation
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- [ ] Add benchmark tests for performance validation
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- [ ] Create stress testing scenarios
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## Phase 12: Documentation & Final Polish
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- [ ] Write comprehensive README with setup instructions
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- [ ] Create API documentation for all interfaces
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- [ ] Add inline code documentation
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- [ ] Create deployment guide
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- [ ] Write troubleshooting guide
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- [ ] Add performance tuning recommendations
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- [ ] Create monitoring and alerting guide
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## Phase 13: Production Readiness Checklist
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- [ ] Security audit of all components
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- [ ] Performance benchmarking and optimization
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- [ ] Memory leak detection and prevention
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- [ ] Resource cleanup validation
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- [ ] Error handling coverage review
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- [ ] Logging security (no sensitive data exposure)
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- [ ] Configuration security (secrets management)
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- [ ] Container security hardening
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## Directory Structure
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```
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/
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├── cmd/
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│ ├── server/ # Server application entry point
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│ └── client/ # Client application entry point
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├── internal/
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│ ├── server/ # Server core logic
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│ ├── protocol/ # Protocol implementation
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│ ├── pow/ # Proof of Work implementation
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│ ├── quotes/ # Quote management
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│ ├── ratelimit/ # Rate limiting & DDOS protection
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│ ├── config/ # Configuration management
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│ ├── metrics/ # Metrics collection
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│ └── logger/ # Structured logging
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├── pkg/ # Public packages
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├── test/ # Integration tests
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├── docker/ # Docker configurations
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├── deployments/ # Deployment configurations
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└── docs/ # Additional documentation
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```
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## Success Criteria
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- [ ] Server handles 1000+ concurrent connections
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- [ ] PoW protection prevents DDOS attacks effectively
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- [ ] All tests pass with >80% code coverage
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- [ ] Docker containers build and run successfully
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- [ ] Client successfully solves challenges and receives quotes
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- [ ] Comprehensive logging and metrics in place
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- [ ] Production-ready error handling and recovery
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- [ ] Clear documentation for deployment and operation
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