1. /**
  2. * Paginates a list of user records for maintenance tasks.
  3. *
  4. * @param {Array} records - The array of user records.
  5. * @param {number} pageSize - The number of records per page.
  6. * @param {number} pageNumber - The page number to retrieve (1-based).
  7. * @returns {object} An object containing the paginated records, total pages, and total records.
  8. */
  9. function paginateRecords(records, pageSize, pageNumber) {
  10. if (!Array.isArray(records)) {
  11. console.error("Records must be an array.");
  12. return { records: [], totalPages: 0, totalRecords: 0 };
  13. }
  15. if (typeof pageSize !== 'number' || pageSize <= 0) {
  16. console.error("Page size must be a positive number.");
  17. return { records: [], totalPages: 0, totalRecords: 0 };
  18. }
  20. if (typeof pageNumber !== 'number' || pageNumber <= 0) {
  21. console.error("Page number must be a positive number.");
  22. return { records: [], totalPages: 0, totalRecords: 0 };
  23. }
  26. const startIndex = (pageNumber - 1) * pageSize; // Calculate the starting index
  27. const endIndex = startIndex + pageSize; // Calculate the ending index
  28. const paginatedRecords = records.slice(startIndex, endIndex); // Extract the records for the current page
  30. const totalRecords = records.length;
  31. const totalPages = Math.ceil(totalRecords / pageSize); // Calculate the total number of pages
  33. return {
  34. records: paginatedRecords,
  35. totalPages: totalPages,
  36. totalRecords: totalRecords
  37. };
  38. }

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