export const truncatedJsonStringify = (obj: unknown, lengthLimit = 1000, tailLength = 10): string | undefined => {
  let stringified: string;
  try {
    stringified = JSON.stringify(obj);
  } catch {
    // For very large objects, JSON.stringify may throw an error.
    return '<Truncated Large Object>';
  }
  if (stringified === undefined || stringified.length < lengthLimit) {
    return stringified;
  }
  return (
    stringified.substring(0, lengthLimit - tailLength) +
    '<… TRUNCATED …>' +
    stringified.substring(stringified.length - tailLength, stringified.length)
  );
};

export const truncateString = (text: string, maxLength: number, omission = '...'): string => {
  if (maxLength <= omission.length) {
    return omission.slice(0, maxLength);
  }
  if (text.length <= maxLength) {
    return text;
  }
  return text.slice(0, maxLength - omission.length) + omission;
};

export const truncateCommitId = (commitId: string): string => {
  return commitId.slice(0, 7);
};