Refactor prismate to modular architecture

[MM25Zamanian]

Implement initial modular architecture for Prismate to enhance scalability and separation of concerns.

This PR establishes the foundational structure for the new modular architecture. It includes:

• Creation of new monorepo packages: @prismate/client, @prismate/schema, @prismate/validation, @prismate/operations, @prismate/cache, and @prismate/server.
• Initial implementation of core logic for @prismate/client, @prismate/schema, and @prismate/validation modules.
• Basic type definitions for @prismate/operations.
• Configuration files (package.json, tsconfig.json, jest.config.js, .eslintrc.js) for all new modules.

---

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}

[MM25Zamanian]

@cursoragent

@prismate/core Refactoring & Optimization - Background Agent Task

🎯 Mission

Refactor and optimize the existing @prismate/core package to achieve maximum type safety, performance, and maintainability while fixing all linter errors and implementing best practices.

🔍 Current State Analysis

✅ Completed Components:

• Basic type definitions structure
• Error classes and utilities
• Constants and configuration
• Utility functions framework

❌ Issues to Fix:

• Linter errors in utility functions
• Missing dependencies (change-case)
• Type safety improvements needed
• Performance optimizations required
• Better error handling patterns

🏗️ Refactoring Requirements

Phase 1: Dependency & Build Fixes

1. Fix Package Dependencies

   • Add missing change-case dependency
   • Update TypeScript configuration
   • Fix ESLint configuration
   • Ensure proper peer dependencies

2. Build System Optimization

   • Optimize TypeScript compilation
   • Add proper source maps
   • Implement tree-shaking
   • Add build validation

Phase 2: Type Safety Enhancements

1. Advanced Type Definitions

   • Generic constraints improvement
   • Conditional types optimization
   • Union types refinement
   • Intersection types enhancement

2. Type Guards & Utilities

   • Runtime type checking
   • Type narrowing functions
   • Generic type validators
   • Type assertion helpers

Phase 3: Performance Optimization

1. Utility Function Optimization

   • Memoization for expensive operations
   • Lazy evaluation patterns
   • Efficient algorithms
   • Memory usage optimization

2. Caching Strategy

   • Function result caching
   • Object reference optimization
   • WeakMap usage where appropriate
   • Memory leak prevention

🔧 Technical Improvements

Type Safety Enhancements:

// Before: Basic types
export type Result<T, E = Error> = {
  success: true;
  data: T;
} | {
  success: false;
  error: E;
};

// After: Enhanced with better constraints
export type Result<T, E extends Error = Error> = 
  | { success: true; data: T; error?: never; }
  | { success: false; data?: never; error: E; };

// Add utility types
export type SuccessResult<T> = Extract<Result<T>, { success: true }>;
export type ErrorResult<E> = Extract<Result<E>, { success: false }>;

Performance Optimizations:

// Before: Simple deep clone
export const deepClone = <T>(obj: T): T => { /* ... */ };

// After: Optimized with memoization
const cloneCache = new WeakMap<object, object>();
export const deepClone = <T>(obj: T): T => {
  if (obj === null || typeof obj !== 'object') return obj;
  
  // Check cache first
  if (cloneCache.has(obj)) {
    return cloneCache.get(obj) as T;
  }
  
  const cloned = /* optimized cloning logic */;
  cloneCache.set(obj, cloned);
  return cloned;
};

Error Handling Improvements:

// Before: Basic error creation
export const createValidationError = (message: string, field?: string, value?: any) => 
  new ValidationError(message, field, value);

// After: Enhanced with context and validation
export const createValidationError = (
  message: string, 
  context: {
    field?: string;
    value?: unknown;
    code?: string;
    metadata?: Record<string, unknown>;
  } = {}
) => {
  const { field, value, code, metadata } = context;
  const error = new ValidationError(message, field, value);
  if (code) error.code = code;
  if (metadata) error.metadata = metadata;
  return error;
};

📁 File Structure Improvements

Enhanced Organization:

packages/core/src/
├── types/
│   ├── index.ts              # Main type exports
│   ├── prisma.ts             # Prisma-specific types
│   ├── schema.ts             # Schema types
│   ├── validation.ts         # Validation types
│   ├── common.ts             # Common utility types
│   ├── advanced.ts           # Advanced type patterns
│   └── guards.ts             # Type guard types
├── constants/
│   ├── index.ts              # Main constant exports
│   ├── prisma.ts             # Prisma constants
│   ├── validation.ts         # Validation constants
│   ├── errors.ts             # Error constants
│   └── limits.ts             # System limits
├── utils/
│   ├── index.ts              # Main utility exports
│   ├── string.ts             # String utilities
│   ├── object.ts             # Object utilities
│   ├── validation.ts         # Validation utilities
│   ├── error.ts              # Error utilities
│   ├── performance.ts        # Performance utilities
│   └── functional.ts         # Functional programming utilities
├── errors/
│   ├── index.ts              # Main error exports
│   ├── base.ts               # Base error classes
│   ├── specific.ts           # Specific error types
│   ├── factories.ts          # Error factory functions
│   └── handlers.ts           # Error handling utilities
├── performance/
│   ├── cache.ts              # Caching utilities
│   ├── memoization.ts        # Memoization helpers
│   └── benchmarks.ts         # Performance measurement
└── index.ts                  # Main package exports

🚀 Implementation Tasks

Task 1: Fix Dependencies & Build

# Add missing dependencies
pnpm add change-case
pnpm add -D @types/node

# Update TypeScript config
# Fix ESLint configuration
# Optimize build process

Task 2: Enhance Type Definitions

• Improve generic constraints
• Add advanced type patterns
• Implement type guards
• Add utility types

Task 3: Optimize Utility Functions

• Implement memoization
• Add performance monitoring
• Optimize algorithms
• Add memory management

Task 4: Enhance Error System

• Improve error context
• Add error recovery patterns
• Implement error chaining
• Add debugging utilities

Task 5: Add Performance Features

• Implement caching layer
• Add performance benchmarks
• Memory usage optimization
• Lazy loading patterns

�� Testing Strategy

Test Coverage Requirements:

• Unit Tests: 95%+ coverage
• Type Tests: All type definitions validated
• Performance Tests: Benchmark all utilities
• Edge Case Tests: Comprehensive error scenarios

Test Structure:

tests/
├── unit/
│   ├── types/                # Type definition tests
│   ├── utils/                # Utility function tests
│   ├── errors/               # Error handling tests
│   └── constants/            # Constant validation tests
├── integration/
│   ├── module-interaction/   # Module interaction tests
│   └── performance/          # Performance integration tests
├── benchmarks/
│   ├── utility-performance/  # Utility function benchmarks
│   ├── memory-usage/         # Memory usage tests
│   └── type-safety/          # Type safety validation
└── fixtures/
    ├── test-data/            # Test data files
    ├── mocks/                # Mock objects
    └── scenarios/            # Test scenarios

📚 Documentation Enhancements

Enhanced README:

• Quick Start Guide: Get up and running in 5 minutes
• API Reference: Complete type documentation
• Performance Guide: Optimization tips and benchmarks
• Migration Guide: How to upgrade from previous versions
• Examples Gallery: Real-world usage examples

Code Documentation:

• JSDoc Comments: All public APIs documented
• Type Examples: Usage examples for complex types
• Performance Notes: Performance characteristics documented
• Error Handling: Error scenarios and solutions

🔄 Migration Strategy

Backward Compatibility:

• Maintain all existing exports
• Add new features without breaking changes
• Provide deprecation warnings for old patterns
• Migration guide for advanced users

Gradual Migration:

• Phase 1: Fix issues and add features
• Phase 2: Deprecate old patterns
• Phase 3: Remove deprecated code (major version)

�� Success Criteria

Code Quality:

• ✅ Zero TypeScript errors
• ✅ Zero ESLint warnings
• ✅ 95%+ test coverage
• ✅ All performance benchmarks pass

Type Safety:

• ✅ Advanced generic constraints
• ✅ Comprehensive type guards
• ✅ Runtime type validation
• ✅ Zero any types in public API

Performance:

• ✅ 2x+ performance improvement in utilities
• ✅ Memory usage optimization
• ✅ Efficient caching strategy
• ✅ Lazy loading implementation

Documentation:

• ✅ Complete API documentation
• ✅ Performance benchmarks documented
• ✅ Migration guide available
• ✅ Examples for all features

📝 Commit Strategy

Conventional Commits:

feat(core): add advanced type patterns and performance optimizations
feat(core): implement comprehensive caching and memoization system
feat(core): enhance error handling with context and recovery patterns
perf(core): optimize utility functions with 2x performance improvement
test(core): achieve 95% test coverage with comprehensive test suite
docs(core): add complete API documentation and performance guide

🚀 Final Deliverables

1. Optimized Core Package with zero linter errors
2. Enhanced Type System with advanced patterns
3. Performance Optimized utilities with 2x improvement
4. Comprehensive Test Suite with 95%+ coverage
5. Complete Documentation with examples and benchmarks
6. Performance Benchmarks for all utilities
7. Migration Guide for existing users
8. Ready for Production with all checks passing

---

Use Claude 3.5 Sonnet or GPT-4 for this complex refactoring. Focus on type safety, performance, and maintainability while ensuring zero breaking changes.