1. /**
  2. * Deserializes a string of timestamps into an array of Date objects,
  3. * with retry logic for parsing errors.
  4. *
  5. * @param {string} timestampString - A string containing timestamps separated by commas.
  6. * @param {number} maxRetries - The maximum number of retry attempts.
  7. * @returns {Promise<Date[]>} - A promise that resolves with an array of Date objects,
  8. * or rejects if parsing fails after maxRetries attempts.
  9. */
  10. async function deserializeTimestamps(timestampString, maxRetries = 3) {
  11. let attempts = 0;
  13. while (attempts < maxRetries) {
  14. try {
  15. const timestamps = timestampString
  16. .split(',')
  17. .map(timestamp => {
  18. // Attempt to parse the timestamp. Handle different formats.
  19. const parsed = Date.parse(timestamp);
  20. if (!isNaN(parsed)) {
  21. return new Date(parsed);
  22. } else {
  23. // Attempt to parse with ISO 8601 format
  24. const isoParsed = new Date(timestamp);
  25. if (!isNaN(isoParsed.getTime())) {
  26. return isoParsed;
  27. } else {
  28. throw new Error(`Invalid timestamp format: ${timestamp}`);
  29. }
  30. }
  31. });
  32. return timestamps; // Success!
  33. } catch (error) {
  34. attempts++;
  35. console.warn(`Timestamp parsing failed (attempt ${attempts}/${maxRetries}):`, error.message);
  36. if (attempts < maxRetries) {
  37. // Retry after a short delay
  38. await new Promise(resolve => setTimeout(resolve, 100)); // 100ms delay
  39. } else {
  40. return Promise.reject(error); // Rejection after max attempts
  41. }
  42. }
  43. }
  44. }

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