1. /**
  2. * Converts user data formats for dry-run scenarios.
  3. *
  4. * @param {object} userData - The user data to convert.
  5. * @param {string} targetFormat - The desired target format ('json', 'csv', 'flat').
  6. * @returns {any} - The converted data, or null if the format is invalid.
  7. */
  8. function convertUserData(userData, targetFormat) {
  9. if (!userData || typeof userData !== 'object') {
  10. console.warn("Invalid user data provided.");
  11. return null;
  12. }
  14. switch (targetFormat.toLowerCase()) {
  15. case 'json':
  16. // Already JSON, no conversion needed.
  17. return userData;
  18. case 'csv':
  19. // Convert to CSV format.
  20. if (!Array.isArray(userData)) {
  21. console.warn("User data must be an array for CSV conversion.");
  22. return null;
  23. }
  25. if (userData.length === 0) return "";
  27. const headers = Object.keys(userData[0]);
  28. const csvRows = [headers.join(',')];
  30. for (const row of userData) {
  31. const values = headers.map(header => row[header] || ''); // Handle missing values
  32. csvRows.push(values.join(','));
  33. }
  35. return csvRows.join('\n');
  37. case 'flat':
  38. // Flatten the object into a single string.
  39. let flattenedString = '';
  40. for (const key in userData) {
  41. if (userData.hasOwnProperty(key)) {
  42. flattenedString += `${key}: ${userData[key]} | `;
  43. }
  44. }
  45. return flattenedString.slice(0, -3); // Remove trailing " | "
  47. default:
  48. console.warn("Invalid target format. Supported formats: json, csv, flat");
  49. return null;
  50. }
  51. }

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