1. /**
  2. * Surfaces metadata errors with optional flags.
  3. *
  4. * @param {object} metadata The metadata object to validate.
  5. * @param {string} [flag=""] Optional flag for filtering/customization.
  6. * @param {boolean} [verbose=false] Enable verbose output.
  7. */
  8. function surfaceMetadataErrors(metadata, flag = "", verbose = false) {
  9. if (!metadata) {
  10. console.error("Metadata object is null or undefined.");
  11. return;
  12. }
  14. const errors = [];
  16. // Example error checks - customize these based on your metadata structure
  17. if (typeof metadata.timestamp !== 'number') {
  18. errors.push("Timestamp must be a number.");
  19. }
  21. if (typeof metadata.source !== 'string' || metadata.source.trim() === "") {
  22. errors.push("Source must be a non-empty string.");
  23. }
  25. if (!Array.isArray(metadata.tags)) {
  26. errors.push("Tags must be an array.");
  27. } else {
  28. for (let i = 0; i < metadata.tags.length; i++) {
  29. if (typeof metadata.tags[i] !== 'string') {
  30. errors.push(`Tag at index ${i} must be a string.`);
  31. }
  32. }
  33. }
  35. if (metadata.version !== undefined && typeof metadata.version !== 'string') {
  36. errors.push("Version must be a string.");
  37. }
  39. if (verbose) {
  40. console.log("Metadata Errors:");
  41. errors.forEach(error => console.log(`- ${error}`));
  42. } else {
  43. if (errors.length > 0) {
  44. console.error("Metadata errors detected:");
  45. console.error(errors.join("\n"));
  46. } else {
  47. console.log("Metadata is valid.");
  48. }
  49. }
  51. //Optional flag handling - Example: filter errors by flag
  52. if (flag && flag.toLowerCase() === "ignoresource") {
  53. const filteredErrors = errors.filter(error => !error.includes("Source"));
  54. if (filteredErrors.length > 0) {
  55. console.error("Metadata errors (ignoring source):");
  56. console.error(filteredErrors.join("\n"));
  57. } else {
  58. console.log("Metadata is valid (ignoring source).");
  59. }
  60. }
  61. }

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