agentsqripts/lib/code-complexity/duplicationDetector.js

Comprehensive static code analysis toolkit for identifying technical debt, security vulnerabilities, performance issues, and code quality problems

/**
 * @file Code duplication detection
 * @description Identifies code duplication patterns
 */

/**
 * Identifies code duplication patterns
 * @param {string} content - File content
 * @returns {Object} Duplication analysis
 */
function identifyDuplication(content) {
  const lines = content.split('\n').map(line => line.trim()).filter(line => line.length > 0);
  let duplicateLines = 0;
  const duplicates = [];
  
  // Simple line-based duplication detection
  const lineMap = new Map();
  
  lines.forEach((line, index) => {
    if (line.length < 10 || line.startsWith('//') || line.startsWith('/*')) return;
    
    if (lineMap.has(line)) {
      duplicateLines++;
      duplicates.push({ line: index + 1, content: line });
    } else {
      lineMap.set(line, index);
    }
  });
  
  return {
    score: lines.length > 0 ? duplicateLines / lines.length : 0,
    lines: duplicates,
    duplicateCount: duplicateLines
  };
}

module.exports = {
  identifyDuplication
};