jay-code/src/core/jay-initialization.ts

Streamlined AI CLI orchestration engine with mathematical rigor and enterprise-grade reliability

/**
 * Jay-Code Initialization System
 * Loads development rules, investigates projects, and generates master documents
 */
import { readFileSync, writeFileSync, existsSync, readdirSync, statSync } from 'fs';
import { join, extname, dirname } from 'path';
import { DevelopmentRulesEngine } from './development-rules-engine.js';

export interface ProjectContext {
  projectPath: string;
  projectName: string;
  language: string;
  architecture: string[];
  fileCount: number;
  codebaseSize: number;
  complexity: number;
  timestamp: Date;
}

export interface MasterDocument {
  id: string;
  timestamp: Date;
  projectContext: ProjectContext;
  architecturalAnalysis: ArchitecturalAnalysis;
  codebaseMapping: CodebaseMapping;
  developmentRules: any;
  recommendations: string[];
  transformationPlan: TransformationPlan;
}

export interface ArchitecturalAnalysis {
  patterns: string[];
  frameworks: string[];
  dependencies: string[];
  complexity: string;
  sophisticationLevel: string;
  qualityScore: number;
  mathematicalRigor: number;
}

export interface CodebaseMapping {
  directories: DirectoryInfo[];
  keyFiles: FileAnalysis[];
  totalFiles: number;
  languages: Record<string, number>;
  architecture: string;
}

export interface DirectoryInfo {
  path: string;
  fileCount: number;
  purpose: string;
  importance: 'critical' | 'important' | 'supporting' | 'optional';
}

export interface FileAnalysis {
  path: string;
  size: number;
  language: string;
  purpose: string;
  complexity: number;
  importance: 'critical' | 'important' | 'supporting';
}

export interface TransformationPlan {
  phases: TransformationPhase[];
  estimatedDuration: string;
  complexityLevel: string;
  riskFactors: string[];
  successCriteria: string[];
}

export interface TransformationPhase {
  name: string;
  description: string;
  tasks: string[];
  estimatedHours: number;
  dependencies: string[];
  validation: string[];
}

export class JayInitializationSystem {
  private rulesEngine: DevelopmentRulesEngine;
  private projectPath: string;

  constructor(projectPath: string = process.cwd()) {
    this.projectPath = projectPath;
    this.rulesEngine = new DevelopmentRulesEngine();
  }

  /**
   * Initialize Jay-Code session with rules and project analysis
   */
  async initialize(): Promise<MasterDocument> {
    console.log('Jay-Code Initialization: Loading development philosophy...');
    
    // Step 1: Load and validate rules
    const rulesValid = this.validateRulesEngine();
    if (!rulesValid) {
      throw new Error('Development rules validation failed');
    }

    console.log('Development rules loaded successfully');
    console.log('Investigating project directory...');

    // Step 2: Investigate project
    const projectContext = await this.investigateProject();
    console.log(`Project analysis complete: ${projectContext.projectName}`);

    // Step 3: Analyze architecture
    const architecturalAnalysis = await this.analyzeArchitecture();
    console.log(`Architecture complexity: ${architecturalAnalysis.sophisticationLevel}`);

    // Step 4: Map codebase
    const codebaseMapping = await this.mapCodebase();
    console.log(`Codebase mapped: ${codebaseMapping.totalFiles} files analyzed`);

    // Step 5: Generate transformation plan
    const transformationPlan = this.generateTransformationPlan(
      projectContext,
      architecturalAnalysis,
      codebaseMapping
    );

    // Step 6: Create master document
    const masterDocument: MasterDocument = {
      id: `master_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
      timestamp: new Date(),
      projectContext,
      architecturalAnalysis,
      codebaseMapping,
      developmentRules: this.rulesEngine.getCodeGenerationDirectives(),
      recommendations: this.generateRecommendations(architecturalAnalysis),
      transformationPlan
    };

    // Step 7: Save master document
    await this.saveMasterDocument(masterDocument);
    
    console.log('Session master document generated and saved');
    return masterDocument;
  }

  private validateRulesEngine(): boolean {
    try {
      const guidance = this.rulesEngine.generateCodeGuidance({});
      return guidance.includes('Mathematical Precision');
    } catch (error) {
      console.error('Rules engine validation failed:', error.message);
      return false;
    }
  }

  private async investigateProject(): Promise<ProjectContext> {
    const projectName = this.detectProjectName();
    const language = this.detectPrimaryLanguage();
    const architecture = this.detectArchitecturalPatterns();
    const { fileCount, codebaseSize } = this.calculateProjectMetrics();
    const complexity = this.calculateProjectComplexity();

    return {
      projectPath: this.projectPath,
      projectName,
      language,
      architecture,
      fileCount,
      codebaseSize,
      complexity,
      timestamp: new Date()
    };
  }

  private detectProjectName(): string {
    // Try package.json first
    const packageJsonPath = join(this.projectPath, 'package.json');
    if (existsSync(packageJsonPath)) {
      try {
        const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
        return packageJson.name || 'unknown-project';
      } catch (error) {
        // Fall through to directory name
      }
    }

    // Use directory name
    return this.projectPath.split('/').pop() || 'unknown-project';
  }

  private detectPrimaryLanguage(): string {
    const extensions = new Map<string, number>();
    
    this.walkDirectory(this.projectPath, (filePath) => {
      const ext = extname(filePath).toLowerCase();
      if (['.ts', '.js', '.py', '.java', '.cpp', '.go', '.rs'].includes(ext)) {
        extensions.set(ext, (extensions.get(ext) || 0) + 1);
      }
    });

    let maxCount = 0;
    let primaryExt = '.js';
    for (const [ext, count] of extensions) {
      if (count > maxCount) {
        maxCount = count;
        primaryExt = ext;
      }
    }

    const languageMap: Record<string, string> = {
      '.ts': 'TypeScript',
      '.js': 'JavaScript', 
      '.py': 'Python',
      '.java': 'Java',
      '.cpp': 'C++',
      '.go': 'Go',
      '.rs': 'Rust'
    };

    return languageMap[primaryExt] || 'Unknown';
  }

  private detectArchitecturalPatterns(): string[] {
    const patterns: string[] = [];
    const architecturalIndicators = {
      'MVC': ['controller', 'model', 'view'],
      'Microservices': ['service', 'api', 'gateway'],
      'Layered': ['domain', 'application', 'infrastructure'],
      'Event-Driven': ['event', 'handler', 'subscriber'],
      'CQRS': ['command', 'query', 'handler'],
      'Clean Architecture': ['entity', 'usecase', 'adapter'],
      'Hexagonal': ['port', 'adapter', 'domain']
    };

    this.walkDirectory(this.projectPath, (filePath) => {
      const content = this.readFileContent(filePath);
      const fileName = filePath.toLowerCase();
      
      for (const [pattern, indicators] of Object.entries(architecturalIndicators)) {
        const matches = indicators.some(indicator => 
          fileName.includes(indicator) || content.toLowerCase().includes(indicator)
        );
        if (matches && !patterns.includes(pattern)) {
          patterns.push(pattern);
        }
      }
    });

    return patterns.length > 0 ? patterns : ['Unknown'];
  }

  private calculateProjectMetrics(): { fileCount: number; codebaseSize: number } {
    let fileCount = 0;
    let codebaseSize = 0;

    this.walkDirectory(this.projectPath, (filePath) => {
      const stats = statSync(filePath);
      fileCount++;
      codebaseSize += stats.size;
    });

    return { fileCount, codebaseSize };
  }

  private calculateProjectComplexity(): number {
    // Mathematical complexity calculation based on multiple factors
    let totalLines = 0;
    let functionCount = 0;
    let classCount = 0;
    let fileCount = 0;

    this.walkDirectory(this.projectPath, (filePath) => {
      if (['.ts', '.js', '.py'].includes(extname(filePath))) {
        const content = this.readFileContent(filePath);
        const lines = content.split('\n').filter(line => line.trim()).length;
        totalLines += lines;
        fileCount++;

        const functions = (content.match(/function|=>|def\s+\w+/g) || []).length;
        const classes = (content.match(/class\s+\w+/g) || []).length;
        functionCount += functions;
        classCount += classes;
      }
    });

    // Mathematical complexity formula
    const avgLinesPerFile = fileCount > 0 ? totalLines / fileCount : 0;
    const avgFunctionsPerFile = fileCount > 0 ? functionCount / fileCount : 0;
    const avgClassesPerFile = fileCount > 0 ? classCount / fileCount : 0;

    const complexity = Math.min(1, (
      avgLinesPerFile / 1000 * 0.4 +
      avgFunctionsPerFile / 20 * 0.3 +
      avgClassesPerFile / 5 * 0.3
    ));

    return complexity;
  }

  private async analyzeArchitecture(): Promise<ArchitecturalAnalysis> {
    const patterns = this.detectArchitecturalPatterns();
    const frameworks = this.detectFrameworks();
    const dependencies = this.analyzeDependencies();
    
    const complexity = this.determineArchitecturalComplexity(patterns, frameworks, dependencies);
    const sophisticationLevel = this.determineSophisticationLevel(complexity);
    const qualityScore = this.calculateArchitecturalQuality();
    const mathematicalRigor = this.assessMathematicalRigor();

    return {
      patterns,
      frameworks,
      dependencies,
      complexity,
      sophisticationLevel,
      qualityScore,
      mathematicalRigor
    };
  }

  private detectFrameworks(): string[] {
    const frameworks: string[] = [];
    const packageJsonPath = join(this.projectPath, 'package.json');
    
    if (existsSync(packageJsonPath)) {
      try {
        const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
        const deps = { ...packageJson.dependencies, ...packageJson.devDependencies };
        
        const frameworkMap: Record<string, string> = {
          'express': 'Express.js',
          'react': 'React',
          'vue': 'Vue.js',
          'angular': 'Angular',
          'nestjs': 'NestJS',
          'fastify': 'Fastify',
          'koa': 'Koa.js',
          'next': 'Next.js'
        };

        for (const [dep, framework] of Object.entries(frameworkMap)) {
          if (deps[dep]) {
            frameworks.push(framework);
          }
        }
      } catch (error) {
        // Continue without package.json analysis
      }
    }

    return frameworks;
  }

  private analyzeDependencies(): string[] {
    const packageJsonPath = join(this.projectPath, 'package.json');
    if (!existsSync(packageJsonPath)) return [];

    try {
      const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
      const deps = Object.keys({ ...packageJson.dependencies, ...packageJson.devDependencies });
      return deps.slice(0, 20); // Top 20 dependencies
    } catch (error) {
      return [];
    }
  }

  private determineArchitecturalComplexity(patterns: string[], frameworks: string[], dependencies: string[]): string {
    const score = patterns.length * 0.4 + frameworks.length * 0.3 + Math.min(dependencies.length / 10, 1) * 0.3;
    
    if (score >= 2) return 'Enterprise';
    if (score >= 1.5) return 'Advanced';
    if (score >= 1) return 'Intermediate';
    return 'Basic';
  }

  private determineSophisticationLevel(complexity: string): string {
    const mapping: Record<string, string> = {
      'Enterprise': 'Top 2% Mathematical',
      'Advanced': 'Advanced Mathematical',
      'Intermediate': 'Intermediate',
      'Basic': 'Basic'
    };
    return mapping[complexity] || 'Basic';
  }

  private calculateArchitecturalQuality(): number {
    // Implement quality scoring algorithm
    return 0.75; // Placeholder
  }

  private assessMathematicalRigor(): number {
    let rigorScore = 0;
    let totalFiles = 0;

    this.walkDirectory(this.projectPath, (filePath) => {
      if (['.ts', '.js'].includes(extname(filePath))) {
        const content = this.readFileContent(filePath);
        totalFiles++;

        if (/complexity|algorithm|mathematical|statistical/i.test(content)) {
          rigorScore++;
        }
      }
    });

    return totalFiles > 0 ? rigorScore / totalFiles : 0;
  }

  private async mapCodebase(): Promise<CodebaseMapping> {
    const directories: DirectoryInfo[] = [];
    const keyFiles: FileAnalysis[] = [];
    const languages: Record<string, number> = {};
    let totalFiles = 0;

    // Analyze directories
    this.analyzeDirectories(this.projectPath, directories);

    // Analyze key files
    this.walkDirectory(this.projectPath, (filePath) => {
      const ext = extname(filePath);
      const stats = statSync(filePath);
      
      languages[ext] = (languages[ext] || 0) + 1;
      totalFiles++;

      // Identify key files
      if (this.isKeyFile(filePath)) {
        keyFiles.push({
          path: filePath,
          size: stats.size,
          language: this.getLanguageFromExtension(ext),
          purpose: this.determineFilePurpose(filePath),
          complexity: this.calculateFileComplexity(filePath),
          importance: this.determineFileImportance(filePath)
        });
      }
    });

    return {
      directories,
      keyFiles,
      totalFiles,
      languages,
      architecture: this.detectArchitecturalPatterns()[0] || 'Unknown'
    };
  }

  private generateTransformationPlan(
    context: ProjectContext,
    analysis: ArchitecturalAnalysis,
    mapping: CodebaseMapping
  ): TransformationPlan {
    const phases: TransformationPhase[] = [];

    // Phase 1: Analysis and Planning
    phases.push({
      name: 'Analysis and Planning',
      description: 'Comprehensive codebase analysis and transformation strategy',
      tasks: [
        'Load development rules and validate against project',
        'Analyze current architecture and identify improvement areas',
        'Create mathematical sophistication roadmap',
        'Plan quality validation checkpoints'
      ],
      estimatedHours: 8,
      dependencies: [],
      validation: ['Rules compliance check', 'Architecture analysis completion']
    });

    // Phase 2: Core Transformation
    phases.push({
      name: 'Core Transformation',
      description: 'Implement mathematical rigor and architectural sophistication',
      tasks: [
        'Apply mathematical precision requirements',
        'Implement deterministic algorithms',
        'Add statistical validation frameworks',
        'Enhance architectural patterns'
      ],
      estimatedHours: 24,
      dependencies: ['Analysis and Planning'],
      validation: ['97%+ quality threshold', 'Mathematical correctness verification']
    });

    // Phase 3: Quality Assurance
    phases.push({
      name: 'Quality Assurance',
      description: 'Validate transformation against Jay-Code standards',
      tasks: [
        'Run comprehensive quality validation',
        'Verify mathematical rigor compliance',
        'Test deterministic behavior',
        'Performance benchmark validation'
      ],
      estimatedHours: 12,
      dependencies: ['Core Transformation'],
      validation: ['All quality gates passed', 'Performance benchmarks met']
    });

    return {
      phases,
      estimatedDuration: '5-7 days',
      complexityLevel: analysis.sophisticationLevel,
      riskFactors: this.identifyRiskFactors(analysis),
      successCriteria: [
        '97%+ quality validation score',
        'Mathematical rigor compliance',
        'Deterministic behavior verification',
        'Performance benchmarks achieved'
      ]
    };
  }

  private generateRecommendations(analysis: ArchitecturalAnalysis): string[] {
    const recommendations: string[] = [];

    if (analysis.mathematicalRigor < 0.5) {
      recommendations.push('Implement mathematical algorithms with complexity analysis');
    }

    if (analysis.qualityScore < 0.8) {
      recommendations.push('Enhance code quality with statistical validation');
    }

    if (!analysis.patterns.includes('Circuit Breaker')) {
      recommendations.push('Add circuit breaker patterns for reliability');
    }

    return recommendations;
  }

  private identifyRiskFactors(analysis: ArchitecturalAnalysis): string[] {
    const risks: string[] = [];

    if (analysis.mathematicalRigor < 0.3) {
      risks.push('Low mathematical rigor may require significant refactoring');
    }

    if (analysis.qualityScore < 0.6) {
      risks.push('Quality improvements may require architectural changes');
    }

    return risks;
  }

  private async saveMasterDocument(master: MasterDocument): Promise<void> {
    const masterDir = join(this.projectPath, '.jay-code', 'masters');
    const masterFile = join(masterDir, `${master.id}.json`);

    try {
      // Ensure directory exists
      const fs = await import('fs/promises');
      await fs.mkdir(masterDir, { recursive: true });
      
      // Save master document
      await fs.writeFile(masterFile, JSON.stringify(master, null, 2));
      console.log(`Master document saved: ${masterFile}`);
    } catch (error) {
      console.error('Failed to save master document:', error.message);
    }
  }

  // Helper methods
  private walkDirectory(dir: string, callback: (filePath: string) => void): void {
    try {
      const items = readdirSync(dir);
      
      for (const item of items) {
        if (item.startsWith('.')) continue; // Skip hidden files
        
        const fullPath = join(dir, item);
        const stats = statSync(fullPath);
        
        if (stats.isDirectory()) {
          this.walkDirectory(fullPath, callback);
        } else {
          callback(fullPath);
        }
      }
    } catch (error) {
      // Skip directories we can't read
    }
  }

  private readFileContent(filePath: string): string {
    try {
      return readFileSync(filePath, 'utf8');
    } catch (error) {
      return '';
    }
  }

  private analyzeDirectories(basePath: string, directories: DirectoryInfo[]): void {
    // Implementation for directory analysis
  }

  private isKeyFile(filePath: string): boolean {
    const keyPatterns = [
      /package\.json$/,
      /tsconfig\.json$/,
      /README\.md$/,
      /index\.[jt]s$/,
      /main\.[jt]s$/,
      /app\.[jt]s$/,
      /server\.[jt]s$/
    ];

    return keyPatterns.some(pattern => pattern.test(filePath));
  }

  private getLanguageFromExtension(ext: string): string {
    const map: Record<string, string> = {
      '.ts': 'TypeScript',
      '.js': 'JavaScript',
      '.py': 'Python',
      '.json': 'JSON'
    };
    return map[ext] || 'Unknown';
  }

  private determineFilePurpose(filePath: string): string {
    if (filePath.includes('config')) return 'Configuration';
    if (filePath.includes('test')) return 'Testing';
    if (filePath.includes('component')) return 'Component';
    if (filePath.includes('service')) return 'Service';
    if (filePath.includes('model')) return 'Model';
    return 'Application Logic';
  }

  private calculateFileComplexity(filePath: string): number {
    const content = this.readFileContent(filePath);
    const lines = content.split('\n').length;
    const functions = (content.match(/function|=>/g) || []).length;
    return Math.min(1, (lines / 100) * 0.7 + (functions / 10) * 0.3);
  }

  private determineFileImportance(filePath: string): 'critical' | 'important' | 'supporting' {
    if (/package\.json|main\.|index\.|app\./i.test(filePath)) return 'critical';
    if (/config|service|model/i.test(filePath)) return 'important';
    return 'supporting';
  }
}