@vibe-dev-kit/cli/src/scanner/utils/typescript-parser.js

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/**
 * TypeScript Parser
 * Provides TypeScript parsing functionality for code analysis
 */

import fs from 'fs/promises';
import path from 'path';

/**
 * Parses TypeScript files for analysis
 */
export class TypeScriptParser {
  /**
   * Determine if a file is likely TypeScript based on extension
   *
   * @param {string} filePath - Path to the file
   * @returns {boolean} - True if file is TypeScript
   */
  static isTypeScriptFile(filePath) {
    const ext = path.extname(filePath).toLowerCase();
    return ext === '.ts' || ext === '.tsx' || ext === '.d.ts';
  }

  /**
   * Safely parse TypeScript file content
   *
   * @param {string} filePath - Path to the TypeScript file
   * @returns {Promise<{content: string, success: boolean, error: Error|null}>} - Parse result
   */
  static async parseFile(filePath) {
    try {
      // For now, we just read the file, but don't try to parse the syntax
      // In a real implementation, we'd use the TypeScript compiler API
      const content = await fs.readFile(filePath, 'utf8');
      return { content, success: true, error: null };
    } catch (error) {
      return { content: '', success: false, error };
    }
  }

  /**
   * Extract imports from TypeScript file
   *
   * @param {string} content - File content
   * @returns {string[]} - Array of imported modules
   */
  static extractImports(content) {
    // Simple regex to extract imports - this is a simplification
    // A real implementation would use the TypeScript AST
    const importRegex = /import\s+(?:{[^}]*}|\*\s+as\s+\w+|\w+)\s+from\s+['"]([^'"]+)['"]/g;
    const imports = [];
    let match;

    while ((match = importRegex.exec(content)) !== null) {
      imports.push(match[1]);
    }

    return imports;
  }

  /**
   * Extract exports from TypeScript file
   *
   * @param {string} content - File content
   * @returns {string[]} - Array of exported items
   */
  static extractExports(content) {
    // Simple regex to extract exports - this is a simplification
    const exportRegex = /export\s+(const|let|var|function|class|interface|type|enum)\s+(\w+)/g;
    const exports = [];
    let match;

    while ((match = exportRegex.exec(content)) !== null) {
      exports.push(match[2]);
    }

    return exports;
  }
}