const evenHexDigit = (hex: string) => (hex.length % 2 !== 0 ? `0${hex}` : hex);

export const removeHex0x = (hex: string): string => {
  const prefix = hex.slice(0, 2);
  return prefix === "0x" ? hex.slice(2) : hex;
};

export const handleHex = (hex: string) => evenHexDigit(removeHex0x(hex));


export const parseIouToken = (contractAddress: string): { code: string; issuer: string } => {
  if (!contractAddress.includes('.')) {
    throw new Error(`Invalid IOU token format: "${contractAddress}". Expected: "code.issuer"`);
  }
  const [code, issuer] = contractAddress.split('.');
  return { code, issuer }
}