cake_wallet/cw_bitcoin/lib/bitcoin_amount_format.dart

import 'package:intl/intl.dart';
import 'package:cw_core/crypto_amount_format.dart';

const bitcoinAmountLength = 8;
const bitcoinAmountDivider = 100000000;
const lightningAmountDivider = 1;
final bitcoinAmountFormat = NumberFormat()
  ..maximumFractionDigits = bitcoinAmountLength
  ..minimumFractionDigits = 1;

String bitcoinAmountToString({required int amount}) =>
    bitcoinAmountFormat.format(cryptoAmountToDouble(amount: amount, divider: bitcoinAmountDivider));

double bitcoinAmountToDouble({required int amount}) =>
    cryptoAmountToDouble(amount: amount, divider: bitcoinAmountDivider);

int stringDoubleToBitcoinAmount(String amount) {
  int result = 0;

  try {
    result = (double.parse(amount) * bitcoinAmountDivider).round();
  } catch (e) {
    result = 0;
  }

  return result;
}

String bitcoinAmountToLightningString({required int amount}) {
  String formattedAmount = bitcoinAmountFormat
      .format(cryptoAmountToDouble(amount: amount, divider: lightningAmountDivider));
  return formattedAmount.substring(0, formattedAmount.length - 2);
}