agentsqripts/lib/wet-code/ast/refactoring/calculateLinesReduced.js

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

/**
 * @file Calculate lines reduced by refactoring
 * @description Single responsibility: Estimate code reduction from refactoring
 */

function calculateLinesReduced(blocks) {
  if (blocks.length < 2) return 0;
  
  const avgLinesPerBlock = blocks.reduce((sum, b) => 
    sum + (b.endLine - b.startLine + 1), 0) / blocks.length;
  
  // Estimate: (n-1) * avgLines - overhead for new function
  const duplicateLinesRemoved = (blocks.length - 1) * avgLinesPerBlock;
  const overheadLines = 10; // New function definition + imports
  
  return Math.max(0, Math.floor(duplicateLinesRemoved - overheadLines));
}

module.exports = calculateLinesReduced;