import varuint32 from "./varuint32.js";

/**
 * serialises string into a WASM hex string.
 * @param {string} str String
 * @returns {string} hex string.
 */
function serialise_string(str) {
  if (str === "") return "00";
  return (
    varuint32(str.length) +
    str
      .match(/./gmu)
      .reduce(
        (acc, i) => (acc += i.charCodeAt(0).toString("16").padStart(2, "00")),
        ""
      )
  );
}

export default serialise_string;