agentsqripts/lib/performance/database-patterns/detectors/detectSyncQueries.js

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

/**
 * @file Detect synchronous database queries
 * @description Single responsibility: Identify blocking synchronous database operations
 */

const { iterateLines } = require('../../../utils/patternDetector');

function detectSyncQueries(lines, filePath) {
  const issues = [];
  
  iterateLines(lines, (line, lineNumber, trimmed, i) => {
    
    // Synchronous database operations
    const syncPatterns = [
      /\.findSync\s*\(/,
      /\.querySync\s*\(/,
      /db\.execSync\s*\(/,
      /\.execSync\s*\(/
    ];
    
    syncPatterns.forEach(pattern => {
      if (pattern.test(trimmed)) {
        issues.push({
          type: 'sync_database_query',
          severity: 'HIGH',
          category: 'Database',
          location: `${filePath}:${lineNumber}`,
          line: lineNumber,
          code: trimmed,
          description: 'Synchronous database operation blocks event loop',
          summary: 'Synchronous database operation',
          recommendation: 'Use async equivalent with await or callbacks',
          effort: 2,
          impact: 'Prevents event loop blocking',
          estimatedSavings: 'unblocks event loop'
        });
      }
    });
  });
  
  return issues;
}

module.exports = detectSyncQueries;