cake_wallet/cw_core/lib/amount_converter.dart
2024-08-03 12:18:19 +00:00

72 lines
2.8 KiB
Dart

import 'package:decimal/decimal.dart';
import 'package:decimal/intl.dart';
import 'package:intl/intl.dart';
import 'package:cw_core/crypto_currency.dart';
class AmountConverter {
static const _moneroAmountLength = 12;
static const _moneroAmountDivider = 1000000000000;
static const _wowneroAmountLength = 11;
static const _wowneroAmountDivider = 100000000000;
static const _bitcoinAmountDivider = 100000000;
static const _bitcoinAmountLength = 8;
static final _bitcoinAmountFormat = NumberFormat()
..maximumFractionDigits = _bitcoinAmountLength
..minimumFractionDigits = 1;
static final _moneroAmountFormat = NumberFormat()
..maximumFractionDigits = _moneroAmountLength
..minimumFractionDigits = 1;
static final _wowneroAmountFormat = NumberFormat()
..maximumFractionDigits = _wowneroAmountLength
..minimumFractionDigits = 1;
static String amountIntToString(CryptoCurrency cryptoCurrency, int amount) {
switch (cryptoCurrency) {
case CryptoCurrency.xmr:
return _moneroAmountToString(amount);
case CryptoCurrency.wow:
return _wowneroAmountToString(amount);
case CryptoCurrency.btc:
case CryptoCurrency.bch:
case CryptoCurrency.ltc:
return _bitcoinAmountToString(amount);
case CryptoCurrency.xhv:
case CryptoCurrency.xag:
case CryptoCurrency.xau:
case CryptoCurrency.xaud:
case CryptoCurrency.xbtc:
case CryptoCurrency.xcad:
case CryptoCurrency.xchf:
case CryptoCurrency.xcny:
case CryptoCurrency.xeur:
case CryptoCurrency.xgbp:
case CryptoCurrency.xjpy:
case CryptoCurrency.xnok:
case CryptoCurrency.xnzd:
case CryptoCurrency.xusd:
return _moneroAmountToString(amount);
case CryptoCurrency.zano:
return _moneroAmountToStringUsingDecimals(amount);
default:
return '';
}
}
static double cryptoAmountToDouble({required num amount, required num divider}) =>
amount / divider;
static String _moneroAmountToString(int amount) => _moneroAmountFormat
.format(cryptoAmountToDouble(amount: amount, divider: _moneroAmountDivider));
static String _bitcoinAmountToString(int amount) => _bitcoinAmountFormat
.format(cryptoAmountToDouble(amount: amount, divider: _bitcoinAmountDivider));
static String _wowneroAmountToString(int amount) => _wowneroAmountFormat
.format(cryptoAmountToDouble(amount: amount, divider: _wowneroAmountDivider));
static Decimal cryptoAmountToDecimal({required int amount, required int divider}) =>
(Decimal.fromInt(amount) / Decimal.fromInt(divider)).toDecimal();
static String _moneroAmountToStringUsingDecimals(int amount) => _moneroAmountFormat.format(
DecimalIntl(cryptoAmountToDecimal(amount: amount, divider: _moneroAmountDivider)));
}