/**
 * Transforms an object into web3 tuple type.
 * @param obj Web3 structure as object.
 */
export function toTuple(obj) {
  if (!(obj instanceof Object)) {
    return [];
  }

  const output = [];
  let i = 0;
  Object.keys(obj).forEach((k) => {
    if (obj[k] instanceof Object) {
      output[i] = toTuple(obj[k]);
    } else if (obj[k] instanceof Array) {
      let j1 = 0;
      const temp1 = [];
      obj[k].forEach((ak) => {
        temp1[j1] = toTuple(obj[k]);
        j1++;
      });
      output[i] = temp1;
    } else {
      output[i] = obj[k];
    }
    i++;
  });

  return output;
}