# DataKnobs KV Package - Progress Checklist

## Phase 1: Core Structure
- [ ] Package setup
  - [x] Directory structure
  - [ ] __init__.py files
  - [ ] Package metadata
- [ ] Key management system
  - [ ] Key class definition
  - [ ] Path parsing
  - [ ] Segment management
  - [ ] Validation rules
  - [ ] Normalization
- [ ] Value type system
  - [ ] Value class definition
  - [ ] Type enumeration
  - [ ] Type detection
  - [ ] Serialization rules
- [ ] Metadata structure
  - [ ] System metadata
  - [ ] User metadata
  - [ ] Metadata merging
  - [ ] Timestamp tracking
- [ ] KVStore interface
  - [ ] Abstract base class
  - [ ] Method signatures
  - [ ] Error handling
  - [ ] Documentation

## Phase 2: Backend Integration
- [ ] dataknobs-data integration
  - [ ] Backend wrapper
  - [ ] Record mapping
  - [ ] Database configuration
  - [ ] Connection management
- [ ] Serialization system
  - [ ] JSON serializer
  - [ ] Binary serializer
  - [ ] Custom type handlers
  - [ ] Compression support
- [ ] Deserialization system
  - [ ] Type detection
  - [ ] Format conversion
  - [ ] Error recovery
  - [ ] Validation
- [ ] Backend configuration
  - [ ] Configuration schema
  - [ ] Backend selection
  - [ ] Options passing
  - [ ] Validation

## Phase 3: Basic Operations
- [ ] Get operation
  - [ ] Single key retrieval
  - [ ] Value deserialization
  - [ ] Metadata retrieval
  - [ ] Error handling
- [ ] Set operation
  - [ ] Value serialization
  - [ ] Metadata handling
  - [ ] Overwrite behavior
  - [ ] Return values
- [ ] Delete operation
  - [ ] Single key deletion
  - [ ] Existence checking
  - [ ] Return values
  - [ ] Error handling
- [ ] Exists operation
  - [ ] Efficient checking
  - [ ] Expiration handling
  - [ ] Namespace awareness
- [ ] Batch operations
  - [ ] get_many
  - [ ] set_many
  - [ ] delete_many
  - [ ] Transaction support
- [ ] Error handling
  - [ ] Exception hierarchy
  - [ ] Error messages
  - [ ] Recovery strategies
  - [ ] Logging

## Phase 4: Pattern Matching
- [ ] Pattern parser
  - [ ] Syntax definition
  - [ ] Parser implementation
  - [ ] Validation
  - [ ] Error handling
- [ ] Matching engine
  - [ ] Wildcard support (*)
  - [ ] Recursive wildcard (**)
  - [ ] Single character (?)
  - [ ] Character sets ([abc])
  - [ ] Alternatives ({foo,bar})
- [ ] Pattern operations
  - [ ] keys() method
  - [ ] get_pattern()
  - [ ] delete_pattern()
  - [ ] count_pattern()
- [ ] Performance optimization
  - [ ] Index usage
  - [ ] Caching
  - [ ] Batch fetching
  - [ ] Query optimization

## Phase 5: Advanced Features
- [ ] TTL and expiration
  - [ ] TTL setting
  - [ ] Expiration checking
  - [ ] Cleanup process
  - [ ] Background tasks
- [ ] Atomic operations
  - [ ] compare_and_swap
  - [ ] increment/decrement
  - [ ] append/prepend
  - [ ] Transaction support
- [ ] Namespace support
  - [ ] Namespace isolation
  - [ ] Cross-namespace operations
  - [ ] Default namespace
  - [ ] Namespace listing
- [ ] Metadata management
  - [ ] get_metadata()
  - [ ] set_metadata()
  - [ ] update_metadata()
  - [ ] Metadata queries
- [ ] Value operations
  - [ ] Type conversion
  - [ ] Value validation
  - [ ] Size limits
  - [ ] Compression

## Phase 6: Performance Features
- [ ] Caching layer
  - [ ] Cache interface
  - [ ] Memory cache
  - [ ] Disk cache
  - [ ] Cache invalidation
  - [ ] TTL support
- [ ] Batch optimizations
  - [ ] Query batching
  - [ ] Write batching
  - [ ] Pipeline support
  - [ ] Parallel processing
- [ ] Index management
  - [ ] Key indexing
  - [ ] Pattern indexes
  - [ ] Metadata indexes
  - [ ] Index maintenance
- [ ] Connection pooling
  - [ ] Pool management
  - [ ] Connection reuse
  - [ ] Health checks
  - [ ] Automatic recovery

## Phase 7: Testing
- [ ] Unit tests
  - [ ] Key management tests
  - [ ] Value serialization tests
  - [ ] Pattern matching tests
  - [ ] Metadata tests
- [ ] Integration tests
  - [ ] Backend compatibility
  - [ ] Cross-backend operations
  - [ ] Namespace isolation
  - [ ] Expiration handling
- [ ] Performance tests
  - [ ] Operation benchmarks
  - [ ] Pattern matching speed
  - [ ] Batch operation efficiency
  - [ ] Memory profiling
- [ ] Error handling tests
  - [ ] Invalid inputs
  - [ ] Backend failures
  - [ ] Recovery scenarios
  - [ ] Edge cases

## Phase 8: Documentation
- [ ] API documentation
  - [ ] Class documentation
  - [ ] Method documentation
  - [ ] Type hints
  - [ ] Examples
- [ ] User guide
  - [ ] Getting started
  - [ ] Basic usage
  - [ ] Advanced features
  - [ ] Best practices
- [ ] Migration guide
  - [ ] From dictionaries
  - [ ] From Redis
  - [ ] From files
  - [ ] Backend switching
- [ ] Examples
  - [ ] Basic operations
  - [ ] Pattern matching
  - [ ] Namespaces
  - [ ] Real-world scenarios

## Phase 9: Async Support
- [ ] Async interface
  - [ ] Async KVStore class
  - [ ] Async methods
  - [ ] Async context managers
  - [ ] Async iterators
- [ ] Async backend integration
  - [ ] Async database calls
  - [ ] Async serialization
  - [ ] Async batch operations
  - [ ] Connection pooling
- [ ] Async tests
  - [ ] Unit tests
  - [ ] Integration tests
  - [ ] Performance tests
  - [ ] Concurrency tests

## Phase 10: Additional Features
- [ ] Import/Export
  - [ ] JSON export
  - [ ] CSV export
  - [ ] Bulk import
  - [ ] Format conversion
- [ ] Monitoring
  - [ ] Operation metrics
  - [ ] Performance metrics
  - [ ] Health checks
  - [ ] Alerts
- [ ] Security
  - [ ] Encryption at rest
  - [ ] Access control
  - [ ] Audit logging
  - [ ] Key rotation
- [ ] Utilities
  - [ ] Migration tools
  - [ ] Backup/restore
  - [ ] Data validation
  - [ ] Cleanup tools

## Phase 11: Optimization
- [ ] Performance tuning
  - [ ] Query optimization
  - [ ] Index optimization
  - [ ] Cache tuning
  - [ ] Memory management
- [ ] Resource optimization
  - [ ] Connection limits
  - [ ] Memory limits
  - [ ] CPU usage
  - [ ] I/O optimization
- [ ] Scalability
  - [ ] Sharding support
  - [ ] Replication
  - [ ] Load balancing
  - [ ] Horizontal scaling

## Phase 12: Package Release
- [ ] Package configuration
  - [ ] pyproject.toml
  - [ ] Dependencies
  - [ ] Version management
  - [ ] Entry points
- [ ] Quality assurance
  - [ ] Code review
  - [ ] Security audit
  - [ ] Performance validation
  - [ ] Documentation review
- [ ] CI/CD
  - [ ] Test automation
  - [ ] Build pipeline
  - [ ] Release process
  - [ ] Documentation deployment
- [ ] Integration
  - [ ] Workspace integration
  - [ ] Cross-package testing
  - [ ] Compatibility verification
  - [ ] Example applications

## Completion Metrics
- [ ] All tests passing
- [ ] >95% code coverage
- [ ] Documentation complete
- [ ] Performance benchmarks met
- [ ] Integration with dataknobs-data verified
- [ ] Example applications working
- [ ] Package published

## Notes
- Dependencies on dataknobs-data package
- Consider Redis-like API for familiarity
- Focus on simplicity and performance
- Ensure backward compatibility