🐛 Bug Fixes #

• Improved error handling in batch operations
• Enhanced type safety in generic methods
• Fixed edge cases in key validation

🔧 Improvements #

• Optimized performance for multiple value operations
• Better null handling in complex type serialization
• Enhanced documentation and code comments

• Bug Fixes

• Fix linter problems
• Add additional public API documentations

🎉 Initial Release #

This is the first stable release of Local Storage Manager, a comprehensive Flutter package for type-safe local storage operations with clean architecture principles.

✨ Features Added #

Core Storage Operations

• Type-Safe Storage API: Generic methods with compile-time type safety for all operations
• SharedPreferences Backend: Complete implementation using SharedPreferences with flutter_shared_utilities
• Comprehensive Value Types: Support for primitives (String, int, double, bool), collections (List<T>, Map<String, T>), and complex objects via JSON serialization
• Null Safety: Full null safety support with nullable value handling

Advanced Operations

• Batch Operations: Efficient multi-key operations including setMultipleValues, removeMultipleValues, and getMultipleValues
• Storage Information: Rich query methods including getAllKeys, getAllValues, getStorageSize, isEmpty, hasValue, and getKeysMatching
• Key Management: Robust key validation and pattern matching capabilities

Error Handling & Reliability

• Functional Error Handling: Either-style StorageResult<T> pattern for elegant error management
• Comprehensive Failure Types: 11 distinct failure types covering all error scenarios
• Detailed Error Information: Rich error context including stack traces, original errors, and additional metadata
• Safe Operations: All operations wrapped in try-catch with proper error recovery

Architecture & Design

• Clean Architecture: Abstract LocalStorageManager interface following dependency inversion principle
• Extensible Design: Easy to add new storage backends (Hive, SQLite, etc.)
• Immutable Models: All data models are immutable with proper equality and hash code implementations
• Builder Pattern: Fluent API design for chaining operations

Developer Experience

• Comprehensive Documentation: Extensive inline documentation with examples
• Type Safety: Full generic support with compile-time type checking
• Functional Programming: Rich functional operations including map, flatMap, fold, onSuccess, onFailure
• Convenience Methods: Helper methods like getValueWithDefault for common patterns

📦 Dependencies #

• flutter: SDK dependency (>=3.0.0)
• flutter_shared_utilities: ^1.0.3 (for safe serialization)
• shared_preferences: ^2.5.3 (for storage backend)

🧪 Testing & Quality #

• Comprehensive Test Suite: Unit tests, integration tests, and error scenario testing
• Example Application: Full-featured example app demonstrating all package capabilities
• Code Quality: Strict linting rules with custom Flutter lints
• Performance: Optimized batch operations and memory usage

📖 Documentation #

• Complete API Documentation: All public APIs documented with examples
• Usage Guide: Comprehensive README with quick start and advanced usage
• Error Handling Guide: Detailed error handling patterns and best practices
• Architecture Guide: Clean architecture implementation details

🔧 Supported Operations #

Basic Operations

• setValue<T>(String key, T value) - Type-safe value storage
• getValue<T>(String key) - Type-safe value retrieval
• getValueWithDefault<T>(String key, {required T defaultValue}) - Safe retrieval with defaults
• removeValue(String key) - Single key removal
• containsKey(String key) - Key existence checking
• clearAll() - Complete storage cleanup

Batch Operations

• setMultipleValues(Map<String, Object?> values) - Multi-key storage
• removeMultipleValues(List<String> keys) - Multi-key removal
• getMultipleValues<T>(List<String> keys) - Multi-key retrieval

Storage Information

• getAllKeys() - Get all stored keys
• getAllValues() - Get complete storage contents
• getStorageSize() - Get number of stored items
• isEmpty() - Check if storage is empty
• hasValue(String key) - Check if key has non-null value
• getKeysMatching(String pattern) - Pattern-based key filtering

🛡️ Error Types Covered #

• keyNotFound - Requested key doesn't exist
• conversionError - Type conversion failures
• serializationError - JSON serialization/deserialization failures
• accessDenied - Storage access permission issues
• quotaExceeded - Storage quota limitations
• networkError - Network-related storage errors
• operationFailed - General operation failures
• invalidKey - Key format validation errors
• invalidValue - Value format validation errors
• corruptedData - Data integrity issues
• unknown - Unexpected errors with full context

🎯 Target Platforms #

• Flutter: 3.0.0 and above
• Dart: 3.8.1 and above
• Platforms: iOS, Android, Web, Desktop (all Flutter-supported platforms)

📝 Breaking Changes #

None - this is the initial release.

🔄 Migration Guide #

This is the first release, so no migration is required.

🤝 Contributors #

• Initial implementation and architecture design
• Comprehensive testing and documentation
• Example application development

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Note: This changelog follows Keep a Changelog format. For more details about changes, see the GitHub repository.