AmountParts splitAmount(String value) {
  final trimmed = value.trim();
  if (trimmed.isEmpty || trimmed == '-') {
    return const AmountParts(amount: '-', currency: '');
  }
  final parts = trimmed.split(' ');
  if (parts.length < 2) {
    return AmountParts(amount: trimmed, currency: '');
  }
  final currency = parts.removeLast();
  return AmountParts(amount: parts.join(' '), currency: currency);
}

class AmountParts {
  final String amount;
  final String currency;

  const AmountParts({
    required this.amount,
    required this.currency,
  });
}