Updated on 2026-08-14
This commit is contained in:
Tangem
parent
f2fc3e9886
commit
e122ccd0eb
20 changed files with 615 additions and 472 deletions
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@ -13,6 +13,7 @@ import com.tangem.util.FormatUtil;
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import com.tangem.util.Util;
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import java.io.ByteArrayOutputStream;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.nio.ByteBuffer;
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import java.security.NoSuchAlgorithmException;
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@ -27,15 +28,15 @@ import java.util.List;
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public class BtcCashEngine extends CoinEngine {
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public BtcData btcData = null;
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public BtcData coinData = null;
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public BtcCashEngine(TangemContext context) throws Exception {
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super(context);
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if (context.getCoinData() == null) {
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btcData = new BtcData();
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context.setCoinData(btcData);
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coinData = new BtcData();
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context.setCoinData(coinData);
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} else if (context.getCoinData() instanceof BtcData) {
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btcData = (BtcData) context.getCoinData();
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coinData = (BtcData) context.getCoinData();
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} else {
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throw new Exception("Invalid type of Blockchain data for BtcEngine");
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}
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@ -45,21 +46,25 @@ public class BtcCashEngine extends CoinEngine {
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}
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private static int getDecimals() {
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return 8;
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}
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private void checkBlockchainDataExists() throws Exception {
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if (btcData == null) throw new Exception("No blockchain data");
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if (coinData == null) throw new Exception("No blockchain data");
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}
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@Override
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public boolean awaitingConfirmation(){
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if( btcData==null ) return false;
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return btcData.getBalanceUnconfirmed() != 0;
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if( coinData ==null ) return false;
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return coinData.getBalanceUnconfirmed() != 0;
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}
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@Override
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public String getBalanceHTML() {
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if (hasBalanceInfo()) {
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Amount balance = convertToAmount(btcData.getBalanceInInternalUnits());
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return balance.toString();
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Amount balance=getBalance();
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if( balance!=null ) {
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return balance.toDescriptionString(getDecimals());
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} else {
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return "";
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}
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@ -67,7 +72,14 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public String getBalanceCurrencyHTML() {
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return "mBCH";
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return "BTH";
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}
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@Override
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public String getOfflineBalanceHTML() {
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InternalAmount offlineInternalAmount = convertToInternalAmount(ctx.getCard().getOfflineBalance());
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Amount offlineAmount = convertToAmount(offlineInternalAmount);
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return offlineAmount.toDescriptionString(getDecimals());
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}
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@Override
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@ -78,30 +90,21 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public boolean isBalanceNotZero() {
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if( btcData==null ) return false;
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if (btcData.getBalanceInInternalUnits() == null) return false;
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return btcData.getBalanceInInternalUnits().notZero();
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}
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@Override
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public boolean checkAmount(Amount amount) throws Exception {
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checkBlockchainDataExists();
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if (amount.compareTo(convertToAmount(btcData.getBalanceInInternalUnits())) > 0) {
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return false;
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}
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return true;
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if( coinData ==null ) return false;
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if (coinData.getBalanceInInternalUnits() == null) return false;
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return coinData.getBalanceInInternalUnits().notZero();
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}
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@Override
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public boolean hasBalanceInfo(){
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if( btcData==null ) return false;
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return btcData.hasBalanceInfo();
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if( coinData ==null ) return false;
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return coinData.hasBalanceInfo();
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}
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@Override
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public boolean checkUnspentTransaction() throws Exception {
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checkBlockchainDataExists();
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return btcData.getUnspentTransactions().size() != 0;
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return coinData.getUnspentTransactions().size() != 0;
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}
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@Override
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@ -173,18 +176,27 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public InputFilter[] getAmountInputFilters() {
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return new InputFilter[] { new DecimalDigitsInputFilter(8) };
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return new InputFilter[] { new DecimalDigitsInputFilter(getDecimals()) };
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}
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@Override
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public boolean checkAmountValue(String amountValue, String feeValue, InternalAmount minFeeInInternalUnits, Boolean isIncludeFee) {
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public boolean checkNewTransactionAmount(Amount amount){
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if( coinData ==null ) return false;
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if (amount.compareTo(convertToAmount(coinData.getBalanceInInternalUnits())) > 0) {
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return false;
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}
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return true;
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}
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@Override
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public boolean checkNewTransactionAmountAndFee(Amount amountValue, Amount feeValue, Boolean isIncludeFee, InternalAmount minFeeInInternalUnits) {
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InternalAmount fee;
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InternalAmount amount;
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try {
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checkBlockchainDataExists();
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amount = convertToInternalAmount(new Amount(amountValue, ctx.getBlockchain()));
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fee = convertToInternalAmount(new Amount(feeValue, ctx.getBlockchain()));
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amount = convertToInternalAmount(amountValue);
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fee = convertToInternalAmount(feeValue);
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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@ -196,10 +208,10 @@ public class BtcCashEngine extends CoinEngine {
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if (fee.isZero() || amount.isZero())
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return false;
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if (isIncludeFee && amount.compareTo(btcData.getBalanceInInternalUnits())>0)
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if (isIncludeFee && amount.compareTo(coinData.getBalanceInInternalUnits())>0)
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return false;
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if (!isIncludeFee && amount.add(fee).compareTo(btcData.getBalanceInInternalUnits())>0)
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if (!isIncludeFee && amount.add(fee).compareTo(coinData.getBalanceInInternalUnits())>0)
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return false;
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return true;
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@ -222,18 +234,18 @@ public class BtcCashEngine extends CoinEngine {
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// return;
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// }
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if (btcData.getBalanceUnconfirmed() != 0) {
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if (coinData.getBalanceUnconfirmed() != 0) {
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balanceValidator.setScore(0);
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balanceValidator.setFirstLine("Transaction in progress");
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balanceValidator.setSecondLine("Wait for confirmation in blockchain");
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return false;
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}
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if (btcData.isBalanceReceived() && btcData.isBalanceEqual()) {
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if (coinData.isBalanceReceived() && coinData.isBalanceEqual()) {
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balanceValidator.setScore(100);
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balanceValidator.setFirstLine("Verified balance");
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balanceValidator.setSecondLine("Balance confirmed in blockchain");
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if (btcData.getBalanceInInternalUnits().isZero()) {
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if (coinData.getBalanceInInternalUnits().isZero()) {
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balanceValidator.setFirstLine("Empty wallet");
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balanceValidator.setSecondLine("");
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}
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@ -248,7 +260,7 @@ public class BtcCashEngine extends CoinEngine {
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// return;
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// }
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if ((ctx.getCard().getOfflineBalance() != null) && !btcData.isBalanceReceived() && (ctx.getCard().getRemainingSignatures() == ctx.getCard().getMaxSignatures()) && btcData.getBalanceInInternalUnits().notZero() ) {
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if ((ctx.getCard().getOfflineBalance() != null) && !coinData.isBalanceReceived() && (ctx.getCard().getRemainingSignatures() == ctx.getCard().getMaxSignatures()) && coinData.getBalanceInInternalUnits().notZero() ) {
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balanceValidator.setScore(80);
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balanceValidator.setFirstLine("Verified offline balance");
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balanceValidator.setSecondLine("Can't obtain balance from blockchain. Restore internet connection to be more confident. ");
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@ -274,7 +286,7 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public Amount getBalance() {
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return convertToAmount(btcData.getBalanceInInternalUnits());
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return convertToAmount(coinData.getBalanceInInternalUnits());
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}
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@Override
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@ -284,8 +296,8 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public String getBalanceEquivalent() {
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if( btcData==null ) return "";
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return btcData.getAmountEquivalentDescription(getBalance());
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if( coinData ==null || !coinData.getAmountEquivalentDescriptionAvailable() ) return "";
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return getBalance().toEquivalentString(coinData.getRate());
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}
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@Override
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@ -325,12 +337,19 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public Amount convertToAmount(InternalAmount internalAmount) {
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return null;
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BigDecimal d=internalAmount.divide(new BigDecimal("100000000"));
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return new Amount(d, getBalanceCurrencyHTML());
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}
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@Override
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public Amount convertToAmount(String strAmount, String currency) {
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return new Amount(strAmount, currency);
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}
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@Override
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public InternalAmount convertToInternalAmount(Amount amount) throws Exception {
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return null;
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BigDecimal d=amount.multiply(new BigDecimal("100000000"));
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return new InternalAmount(d, getBalanceCurrencyHTML());
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}
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@Override
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@ -338,7 +357,7 @@ public class BtcCashEngine extends CoinEngine {
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if (bytes == null) return null;
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byte[] reversed = new byte[bytes.length];
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for (int i = 0; i < bytes.length; i++) reversed[i] = bytes[bytes.length - i - 1];
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return new InternalAmount(Util.byteArrayToLong(reversed));
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return new InternalAmount(Util.byteArrayToLong(reversed),"Satoshi");
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}
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@Override
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@ -356,7 +375,7 @@ public class BtcCashEngine extends CoinEngine {
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@Override
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public String getUnspentInputsDescription() {
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return btcData.getUnspentInputsDescription();
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return coinData.getUnspentInputsDescription();
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}
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// @Override
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@ -372,8 +391,9 @@ public class BtcCashEngine extends CoinEngine {
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}
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}
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public String getAmountEquivalentDescriptor(TangemCard mCard, String value) {
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return getAmountEquivalentDescriptionBTC(Double.parseDouble(value), btcData.getRate());
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public String getAmountEquivalentDescriptor(TangemCard card, String value) {
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return getAmountEquivalentDescriptionBTC(Double.parseDouble(value), coinData.getRate());
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}
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@Override
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@ -387,7 +407,7 @@ public class BtcCashEngine extends CoinEngine {
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String changeAddress = myAddress;
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// Build script for our address
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List<BtcData.UnspentTransaction> rawTxList = btcData.getUnspentTransactions();
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List<BtcData.UnspentTransaction> rawTxList = coinData.getUnspentTransactions();
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byte[] outputScriptWeAreAbleToSpend = Transaction.Script.buildOutput(myAddress).bytes;
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// Collect unspent
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@ -409,7 +429,7 @@ public class BtcCashEngine extends CoinEngine {
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}
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if (amount + fees > fullAmount) {
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throw new CardProtocol.TangemException_WrongAmount(String.format("Balance (%d) < amount (%d) + (%d)", fullAmount, change, amount));
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throw new CardProtocol.TangemException_WrongAmount(String.format("Balance (%d) < change (%d) + amount (%d)", fullAmount, change, amount));
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}
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byte[][] dataForSign = new byte[unspentOutputs.size()][];
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