// TODO: descr, tests
const toSnakeCase: (str: string) => string = (str: string) =>
  (str &&
    str
      ?.match(
        /[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g
      )
      ?.map((x) => x.toLowerCase())
      .join("_")) ||
  "";

export default toSnakeCase;