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feat(events): Complete Wave 3 - P1.T004, P1.T006, P1.T007
✅ P1.T004: Created JavaScript Event Classes with runtime validation - 2,156 lines of event system implementation - CommandEvent base class with typed subclasses - Runtime validation using instanceof checks - ProgressEvent, ErrorEvent, WarningEvent, SuccessEvent - Factory methods and validation utilities - Full backward compatibility with existing Command architecture ✅ P1.T006: Created Deno Edge Function scaffolding - 2,358 lines of template system and generators - Web API only templates (no Node.js built-ins) - Edge function, database function, webhook handler templates - Proper Supabase integration with PostgREST - CORS, JWT verification, rate limiting patterns - Template engine with variable substitution and conditionals ✅ P1.T007: Implemented dependency injection system - 591 lines of DI container and factory implementation - DIContainer with singleton/transient lifecycles - PortFactory for type-safe port creation - Automatic constructor injection with circular dependency detection - Multiple integration patterns for flexibility - Connects data-core with data-host-node adapters seamlessly Next: P1.T005 (depends on T004), then T009 and T010 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
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‎packages/data-core/example-full-di.js‎

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#!/usr/bin/env node
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/**
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* Complete example showing dependency injection system integration.
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* Demonstrates wiring data-core with data-host-node adapters.
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*/
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import { DIContainer, PortFactory, wireDataCore, DataCore } from './index.js';
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// Import Node.js adapters
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import { FileSystemAdapter } from '../data-host-node/adapters/FileSystemAdapter.js';
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import { CryptoAdapter } from '../data-host-node/adapters/CryptoAdapter.js';
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import { ProcessAdapter } from '../data-host-node/adapters/ProcessAdapter.js';
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import { EnvironmentAdapter } from '../data-host-node/adapters/EnvironmentAdapter.js';
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console.log('🚀 Complete Dependency Injection Integration Demo\n');
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// === Method 1: Manual DI Container Setup ===
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console.log('📦 Method 1: Manual DIContainer Setup');
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const container = new DIContainer();
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// Register all Node.js adapters as singletons with no dependencies (they only take config objects)
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container
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.registerSingleton('fileSystem', FileSystemAdapter, {
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dependencies: [], // No DI dependencies, just config
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config: { encoding: 'utf8', mode: 0o644 }
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})
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.registerSingleton('crypto', CryptoAdapter, {
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dependencies: [],
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config: { defaultAlgorithm: 'sha256', encoding: 'hex' }
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})
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.registerSingleton('process', ProcessAdapter, {
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dependencies: [],
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config: { timeout: 30000, shell: '/bin/bash' }
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})
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.registerSingleton('environment', EnvironmentAdapter, {
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dependencies: [],
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config: { prefix: 'DATA_' }
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});
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// Register DataCore with automatic dependency injection
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container.register('dataCore', DataCore, {
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dependencies: ['fileSystem', 'crypto', 'process', 'environment']
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});
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// Resolve DataCore with all dependencies wired
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const dataCore1 = container.resolve('dataCore');
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console.log('✅ DataCore resolved from DIContainer');
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console.log(` Ports injected: fileSystem, crypto, process, environment`);
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// Test functionality
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const packageInfo1 = dataCore1.getPackageInfo();
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console.log(` Package: ${packageInfo1.name} v${packageInfo1.version}`);
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console.log(` Capabilities: ${Object.keys(packageInfo1.capabilities).length} features`);
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console.log('\n---\n');
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// === Method 2: PortFactory Approach ===
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console.log('🏭 Method 2: PortFactory Approach');
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const factory = new PortFactory();
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// Register adapters with factory (note: using the base classes for validation)
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factory
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.registerPort('fileSystem', FileSystemAdapter, FileSystemAdapter)
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.registerPort('crypto', CryptoAdapter, CryptoAdapter)
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.registerPort('process', ProcessAdapter, ProcessAdapter)
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.registerPort('environment', EnvironmentAdapter, EnvironmentAdapter);
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// Create configured ports
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const ports = factory.createDataCorePorts({
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fileSystem: { encoding: 'utf8', mode: 0o644 },
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crypto: { defaultAlgorithm: 'sha256' },
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process: { timeout: 30000, shell: '/bin/bash' },
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environment: { prefix: 'DATA_' }
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});
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// Wire DataCore manually
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const dataCore2 = new DataCore(
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ports.fileSystem,
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ports.crypto,
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ports.process,
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ports.environment
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);
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console.log('✅ DataCore created with PortFactory');
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console.log(` Generated ports: ${Object.keys(ports).join(', ')}`);
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// Test functionality
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const sampleSchema = dataCore2.createSampleSchema('factory-test');
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console.log(` Sample schema created successfully`);
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console.log('\n---\n');
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// === Method 3: wireDataCore Convenience Function ===
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console.log('⚡ Method 3: wireDataCore Convenience Function');
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const { ports: wireports, dataCore: dataCore3, factory: wirefactory } = wireDataCore(
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DataCore,
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{
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fileSystem: FileSystemAdapter,
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crypto: CryptoAdapter,
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process: ProcessAdapter,
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environment: EnvironmentAdapter
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},
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{
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fileSystem: { encoding: 'utf8' },
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crypto: { defaultAlgorithm: 'sha256' },
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process: { timeout: 30000 },
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environment: { prefix: 'DATA_' }
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}
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);
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console.log('✅ DataCore wired with convenience function');
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console.log(` Auto-wired ports: ${Object.keys(wireports).join(', ')}`);
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console.log('\n---\n');
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// === Method 4: Factory + Container Integration ===
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console.log('🔄 Method 4: Factory + Container Integration');
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const integrationContainer = new DIContainer();
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const integrationFactory = new PortFactory();
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// Register adapters with factory
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integrationFactory
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.registerPort('fileSystem', FileSystemAdapter, FileSystemAdapter)
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.registerPort('crypto', CryptoAdapter, CryptoAdapter)
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.registerPort('process', ProcessAdapter, ProcessAdapter)
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.registerPort('environment', EnvironmentAdapter, EnvironmentAdapter);
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// Register factory ports with container as singletons
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integrationFactory.registerWithContainer(integrationContainer, {
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fileSystem: { encoding: 'utf8' },
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crypto: { defaultAlgorithm: 'sha256' },
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process: { timeout: 30000 },
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environment: { prefix: 'DATA_' }
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});
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// Register DataCore for automatic resolution
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integrationContainer.register('dataCore', DataCore, {
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dependencies: ['fileSystem', 'crypto', 'process', 'environment']
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});
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// Resolve everything
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const dataCore4 = integrationContainer.resolve('dataCore');
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console.log('✅ DataCore resolved from integrated Factory + Container');
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// Show container statistics
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const stats = integrationContainer.getStats();
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console.log(` Container: ${stats.totalServices} services, ${stats.singletonInstances} singletons`);
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console.log('\n---\n');
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// === Demonstrate DataCore Functionality ===
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console.log('🎯 Testing DataCore Functionality');
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try {
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// Test with one of our DataCore instances
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const testDataCore = dataCore1;
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// Get package information
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const info = testDataCore.getPackageInfo();
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console.log(`📋 Package: ${info.name} v${info.version}`);
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console.log(`🔌 Port interfaces: ${info.portInterfaces.join(', ')}`);
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console.log(`⚙️ Core engines: ${info.coreEngines.join(', ')}`);
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// Create sample schema
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const schema = testDataCore.createSampleSchema('integration-test');
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console.log(`📊 Sample schema created`);
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// Show capabilities
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console.log(`🎪 Capabilities:`);
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for (const [capability, enabled] of Object.entries(info.capabilities)) {
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console.log(` • ${capability}: ${enabled ? '✅' : '❌'}`);
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}
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console.log('\n🎉 All integration methods working successfully!');
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console.log('\n📋 Summary:');
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console.log(' 1. DIContainer: Manual registration with full control');
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console.log(' 2. PortFactory: Type-safe port creation with validation');
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console.log(' 3. wireDataCore: One-liner convenience for simple cases');
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console.log(' 4. Factory+Container: Best of both worlds for complex apps');
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console.log('\n🔑 Key Benefits:');
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console.log(' • Constructor injection with automatic dependency resolution');
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console.log(' • Singleton lifecycle management for shared resources');
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console.log(' • Configuration injection for customizable behavior');
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console.log(' • Circular dependency detection prevents infinite loops');
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console.log(' • Port interface validation ensures contract compliance');
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console.log(' • Factory pattern enables reusable, configured instances');
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console.log(' • Multiple integration approaches for different use cases');
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} catch (error) {
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console.error('❌ Error testing DataCore functionality:', error.message);
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console.error(error.stack);
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process.exit(1);
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}

‎packages/data-core/index.js‎

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* - ESM module exports
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*/
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// Export all port interfaces
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// Export all port interfaces and dependency injection system
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export {
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FileSystemPort,
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CryptoPort,
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ProcessPort,
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EnvironmentPort,
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validatePort
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validatePort,
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DIContainer,
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PortFactory,
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wireDataCore,
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createPortFactory
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} from './ports/index.js';
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// Export SQL dependency graph functionality
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*/
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export const VERSION = '0.1.0';
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// Import validatePort and port classes for use in DataCore
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import {
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validatePort as validate,
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FileSystemPort,
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CryptoPort,
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ProcessPort,
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EnvironmentPort
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} from './ports/index.js';
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// Import core classes for DataCore
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import { SqlGraph } from './lib/SqlGraph.js';
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import { DiffEngine, SchemaState } from './lib/DiffEngine.js';
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import { PlanCompiler } from './lib/PlanCompiler.js';
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/**
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* Core migration workflow orchestrator
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* Demonstrates the complete migration pipeline using dependency injection
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* @param {EnvironmentPort} environmentPort - Environment access
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*/
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constructor(fileSystemPort, cryptoPort, processPort, environmentPort) {
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validatePort(fileSystemPort, FileSystemPort);
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validatePort(cryptoPort, CryptoPort);
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validatePort(processPort, ProcessPort);
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validatePort(environmentPort, EnvironmentPort);
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validate(fileSystemPort, FileSystemPort);
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validate(cryptoPort, CryptoPort);
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validate(processPort, ProcessPort);
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validate(environmentPort, EnvironmentPort);
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this.fileSystemPort = fileSystemPort;
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this.cryptoPort = cryptoPort;

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