Add decred (#1938)

* decred: Add decred. (#1322) * multi: Add initial decred screens. (#1165) Use a mock libwallet for now. * cw_decred: add libdcrwallet dependency and link library for android, ios and macos (#1240) * change cw_decred from package to plugin * add libdcrwallet dependency and link library for android, ios and macos * remove spvwallet, make some libdcrwallet fns async, light refactor * libdcrwallet: use json payload returns * use specific libwallet commit hash * decred: fix Rename wallet. --------- Co-authored-by: JoeGruff <joegruffins@gmail.com> * decred: Add sync. * decred: Add send transaction. * decred: Fix fee estimation. * decred: List transactions. * decred: Add rescan. * decred: Sign message. * decred: Add new addr and addrs. * decred: Add change wallet pass. * decred: Add restore from seed. * decred: Add watching only wallets. * decred: Enable mainnet. * decred: Allow using blank node address. This allows a persistent peer to be unset, falling back to decred seeders. * decred: Rescan from wallet birthday. * add and update macos build scripts, update build readme, gitignore macos project.pbxproj Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> * multi: hide decred rescan page if it's not ready - move hasRescan method to WalletBase and implement for decred Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> * cw_decred: fix bug where decred wallets are not loaded after app restart Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> * add buy and sell for decred via onramp Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> * bug-fix: account for other send outputs that are part of the same tx Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> * decred: Return address with no peers. * decred: Update pubspec. * decred: Add verify message. * upgrade hive_generator dep in cw_decred * decred: Clean up code. --------- Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> Co-authored-by: Wisdom Arerosuoghene <wisdom.arerosuoghene@gmail.com> Co-authored-by: Philemon Ukane <ukanephilemon@gmail.com> * fix extracted addresses not used fix conflicts with main * remove print [skip ci] * minor formatting * fix initial migration version * add build decred script to workflow * install go before build decred fix switch cases * trial 2 to fix decred build * re-install go * revert build script change * refactor/clean nodes functions * Fix address book issue Fix send ALL (to be continued with the fees point) * Fix transactions display issues Add missing file * Fix unconfirmed balance not displayed Change Wallet order Minor cleanup * Fix workflow * Fix workflow * Fix workflow * test * hardcode path for now * fix + cleanup decred build script to work on mac and linux * Update decred build script * Run actions on pull requests, extract commit message * run after checkout * add safe directory * Get commit message from base.sha instead of last commit * base -> head * Do not merge main branch into pr * [skip slack] [run tests] clone by sha * Proper name for decred library in the build script * Throw an error when ANDROID_HOME or ANDROID_NDK_VERSION is missing * Fix conflicts with main * minor code enhancement * decred: Add used address history. (#1941) * decred: Update pubspec. * decred testnet * decred: Add used address history. * decred: Remove default node list. * populate transaction history before sync begins * decred: Add some awaits. * decred: Fix send all. * decred: Add clang export to build script. * decred: Update logo colors. * cleanup cw_decred.dart * make decred wallet addresses selectable in receive page * decred: Always set default addr when used. * decred: Add back default node list. * decred: Allow creating addresses manually. --------- Co-authored-by: Wisdom Arerosuoghene <wisdom.arerosuoghene@gmail.com> Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com> * minor fixes and cleanup * minor fix, feel free to test now * - Fix transaction details - Fix Nodes - Add processing sync status * Add decred info card * push missing file * Add missing text for decred info card * minor: change docs link [skip ci] * decred: Update derivation info. (#2013) * decred: Update derivation info. * decred: Allow unsynced unused addresses. * decred: Update dcrwallet dep to 4.3.0. * Merge main and fix conflicts * Merge main and fix conflicts * decred: Fix background sync panic. (#2080) * decred: Run libwallet in isolate. (#2077) * decred: Fix contact save inquiry. (#2083) Also fix tx time and the fee shown on pending transactions. * Disable send button in view only decred wallets * - Fix frozen coins - Add URI support - Fix fees in tx details - Handle empty coins send - Handle wallets in address book * Merge main * remove print [skip ci] * Fix restore from QR * minor improvement for QR restore * minor fixes [skip ci] * decred: Get slip44 addrs before sync completes. (#2092) * - Fix loading wallet more than one time - Fix minor UI issue --------- Signed-off-by: Philemon Ukane <ukanephilemon@gmail.com> Co-authored-by: JoeGruffins <34998433+JoeGruffins@users.noreply.github.com> Co-authored-by: Wisdom Arerosuoghene <wisdom.arerosuoghene@gmail.com> Co-authored-by: Philemon Ukane <ukanephilemon@gmail.com> Co-authored-by: Czarek Nakamoto <cyjan@mrcyjanek.net>
2026-10-22 06:28:39 +02:00 · 2025-03-21 04:18:47 +02:00
parent 52a39e29d4
commit 0ba54fa602
175 changed files with 7145 additions and 1115 deletions
@@ -55,6 +55,7 @@ abstract class AdvancedPrivacySettingsViewModelBase with Store {
      case WalletType.none:
      case WalletType.haven:
      case WalletType.zano:
+      case WalletType.decred:
        return false;
    }
  }
@@ -9,7 +9,6 @@ import 'package:cake_wallet/entities/wallet_list_order_types.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/utils/mobx.dart';
-import 'package:collection/collection.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cw_core/wallet_info.dart';
 import 'package:cw_core/wallet_type.dart';
@@ -43,7 +42,8 @@ abstract class ContactListViewModelBase with Store {
          }
        }
      } else if (info.addresses?.isNotEmpty == true && info.addresses!.length > 1) {
-        if ([WalletType.monero, WalletType.wownero, WalletType.haven].contains(info.type)) {
+        if ([WalletType.monero, WalletType.wownero, WalletType.haven, WalletType.decred]
+            .contains(info.type)) {
          final address = info.address;
          final name = _createName(info.name, "", key: 0);
          walletContacts.add(WalletContact(
@@ -129,11 +129,9 @@ abstract class ContactListViewModelBase with Store {
        (element.type == CryptoCurrency.btc || element.type == CryptoCurrency.ltc)) return false;

    return element.type == _currency ||
-        (element.type.tag != null &&
-            _currency?.tag != null &&
-            element.type.tag == _currency?.tag) ||
-        _currency?.toString() == element.type.tag ||
-        _currency?.tag == element.type.toString();
+        (element.type.tag != null && _currency.tag != null && element.type.tag == _currency.tag) ||
+        _currency.toString() == element.type.tag ||
+        _currency.tag == element.type.toString();
  }

  void dispose() => _subscription?.cancel();
@@ -62,12 +62,12 @@ abstract class ContactViewModelBase with Store {
        return;
      }

-      if (_contact != null && _contact!.original.isInBox) {
-        _contact?.name = name;
-        _contact?.address = address;
-        _contact?.type = currency!;
-        _contact?.lastChange = now;
-        await _contact?.save();
+      if (_contact != null && _contact.original.isInBox) {
+        _contact.name = name;
+        _contact.address = address;
+        _contact.type = currency!;
+        _contact.lastChange = now;
+        await _contact.save();
      } else {
        await _contacts
            .add(Contact(name: name, address: address, type: currency!, lastChange: now));
@@ -306,6 +306,7 @@ abstract class BalanceViewModelBase with Store {
      case WalletType.monero:
      case WalletType.wownero:
      case WalletType.zano:
+      case WalletType.decred:
        return true;
      default:
        return false;
@@ -23,7 +23,6 @@ import 'package:cake_wallet/store/dashboard/trades_store.dart';
 import 'package:cake_wallet/store/dashboard/transaction_filter_store.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/store/yat/yat_store.dart';
-import 'package:cake_wallet/utils/mobx.dart';
 import 'package:cake_wallet/view_model/dashboard/action_list_item.dart';
 import 'package:cake_wallet/view_model/dashboard/anonpay_transaction_list_item.dart';
 import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart';
@@ -169,6 +168,9 @@ abstract class DashboardViewModelBase with Store {
        type = appStore.wallet!.type,
        transactions = ObservableList<TransactionListItem>(),
        wallet = appStore.wallet! {
+    showDecredInfoCard = wallet.type == WalletType.decred &&
+        (sharedPreferences.getBool(PreferencesKey.showDecredInfoCard) ?? true);
+
    name = wallet.name;
    type = wallet.type;
    isShowFirstYatIntroduction = false;
@@ -261,6 +263,7 @@ abstract class DashboardViewModelBase with Store {
    reaction((_) => appStore.wallet, (wallet) {
      _onWalletChange(wallet);
      _checkMweb();
+      showDecredInfoCard = wallet?.type == WalletType.decred;
    });

    _transactionDisposer?.reaction.dispose();
@@ -350,6 +353,10 @@ abstract class DashboardViewModelBase with Store {
      statusText = S.current.please_try_to_connect_to_another_node;
    }

+    if (status is ProcessingSyncStatus) {
+      statusText = (status as ProcessingSyncStatus).message ?? S.current.processing;
+    }
+
    return statusText;
  }

@@ -399,13 +406,7 @@ abstract class DashboardViewModelBase with Store {
  bool get isTestnet => wallet.type == WalletType.bitcoin && bitcoin!.isTestnet(wallet);

  @computed
-  bool get hasRescan => [
-        WalletType.bitcoin,
-        WalletType.monero,
-        WalletType.litecoin,
-        WalletType.wownero,
-        WalletType.haven
-      ].contains(wallet.type);
+  bool get hasRescan => wallet.hasRescan;

  @computed
  bool get isMoneroViewOnly {
@@ -490,6 +491,9 @@ abstract class DashboardViewModelBase with Store {
  @observable
  bool mwebEnabled = false;

+  @observable
+  late bool showDecredInfoCard;
+
  @computed
  bool get hasEnabledMwebBefore => settingsStore.hasEnabledMwebBefore;

@@ -543,6 +547,12 @@ abstract class DashboardViewModelBase with Store {
    bitcoin!.setMwebEnabled(wallet, false);
  }

+  @action
+  void dismissDecredInfoCard() {
+    showDecredInfoCard = false;
+    sharedPreferences.setBool(PreferencesKey.showDecredInfoCard, false);
+  }
+
  BalanceViewModel balanceViewModel;

  AppStore appStore;
@@ -573,6 +583,9 @@ abstract class DashboardViewModelBase with Store {
  @computed
  bool get isEnabledSwapAction => settingsStore.exchangeStatus != ExchangeApiMode.disabled;

+  @computed
+  bool get canSend => wallet.canSend();
+
  @observable
  bool hasSwapAction;

@@ -596,21 +609,28 @@ abstract class DashboardViewModelBase with Store {

  @computed
  bool get hasSignMessages {
-    if (wallet.isHardwareWallet) return false;
-
-    return [
-      WalletType.monero,
-      WalletType.litecoin,
-      WalletType.bitcoin,
-      WalletType.bitcoinCash,
-      WalletType.ethereum,
-      WalletType.polygon,
-      WalletType.solana,
-      WalletType.nano,
-      WalletType.banano,
-      WalletType.tron,
-      WalletType.wownero
-    ].contains(wallet.type);
+    if (wallet.isHardwareWallet) {
+      return false;
+    }
+    switch (wallet.type) {
+      case WalletType.monero:
+      case WalletType.litecoin:
+      case WalletType.bitcoin:
+      case WalletType.bitcoinCash:
+      case WalletType.ethereum:
+      case WalletType.polygon:
+      case WalletType.solana:
+      case WalletType.nano:
+      case WalletType.banano:
+      case WalletType.tron:
+      case WalletType.wownero:
+      case WalletType.decred:
+        return true;
+      case WalletType.zano:
+      case WalletType.haven:
+      case WalletType.none:
+        return false;
+    }
  }

  bool get showRepWarning {
@@ -214,6 +214,7 @@ abstract class HomeSettingsViewModelBase with Store {
      case WalletType.nano:
      case WalletType.wownero:
      case WalletType.bitcoinCash:
+      case WalletType.decred:
        return false;
    }

@@ -14,7 +14,9 @@ abstract class ReceiveOptionViewModelBase with Store {
            (_wallet.type == WalletType.bitcoin ||
             _wallet.type == WalletType.litecoin
                ? bitcoin!.getSelectedAddressType(_wallet)
-                : ReceivePageOption.mainnet),
+                    : (_wallet.type == WalletType.decred && _wallet.isTestnet)
+                    ? ReceivePageOption.testnet
+                    : ReceivePageOption.mainnet),
        _options = [] {
    final walletType = _wallet.type;
    switch (walletType) {
@@ -33,6 +35,17 @@ abstract class ReceiveOptionViewModelBase with Store {
      case WalletType.haven:
        _options = [ReceivePageOption.mainnet];
        break;
+      case WalletType.decred:
+        if (_wallet.isTestnet) {
+          _options = [
+            ReceivePageOption.testnet,
+            ...ReceivePageOptions.where(
+                (element) => element != ReceivePageOption.mainnet)
+          ];
+        } else {
+          _options = ReceivePageOptions;
+        }
+        break;
      default:
        _options = ReceivePageOptions;
    }
@@ -1,3 +1,4 @@
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/entities/balance_display_mode.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
 import 'package:cake_wallet/ethereum/ethereum.dart';
@@ -82,7 +83,9 @@ class TransactionListItem extends ActionListItem with Keyable {
        if (transaction.confirmations <= 0) {
          str = S.current.pending;
        }
-        if ((isPegOut || fromPegOut) && transaction.confirmations >= 0 && transaction.confirmations < 6) {
+        if ((isPegOut || fromPegOut) &&
+            transaction.confirmations >= 0 &&
+            transaction.confirmations < 6) {
          str = " (${transaction.confirmations}/6)";
        }
        if (isPegIn) {
@@ -224,7 +227,13 @@ class TransactionListItem extends ActionListItem with Keyable {
          cryptoAmount: zano!.formatterIntAmountToDouble(amount: transaction.amount, currency: asset, forFee: false),
          price: price);
          break;
-      default:
+      case WalletType.decred:
+        amount = calculateFiatAmountRaw(
+            cryptoAmount: decred!.formatterDecredAmountToDouble(amount: transaction.amount),
+            price: price);
+        break;
+      case WalletType.none:
+      case WalletType.banano:
        break;
    }

@@ -23,6 +23,8 @@ import 'package:shared_preferences/shared_preferences.dart';

 import 'package:cake_wallet/.secrets.g.dart' as secrets;
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cake_wallet/bitcoin_cash/bitcoin_cash.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
 import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
@@ -167,7 +169,8 @@ abstract class ExchangeViewModelBase extends WalletChangeListenerViewModel with
      wallet.type == WalletType.bitcoinCash;

  bool get hideAddressAfterExchange =>
-      wallet.type == WalletType.monero || wallet.type == WalletType.wownero;
+      wallet.type == WalletType.monero ||
+      wallet.type == WalletType.wownero;

  bool _useTorOnly;
  final Box<Trade> trades;
@@ -316,8 +319,6 @@ abstract class ExchangeViewModelBase extends WalletChangeListenerViewModel with

  bool get isMoneroWallet => wallet.type == WalletType.monero;

-
-
  List<CryptoCurrency> receiveCurrencies;

  List<CryptoCurrency> depositCurrencies;
@@ -778,6 +779,10 @@ abstract class ExchangeViewModelBase extends WalletChangeListenerViewModel with
        depositCurrency = CryptoCurrency.zano;
        receiveCurrency = CryptoCurrency.xmr;
        break;
+      case WalletType.decred:
+        depositCurrency = CryptoCurrency.dcr;
+        receiveCurrency = CryptoCurrency.xmr;
+        break;
      case WalletType.none:
        break;
    }
@@ -63,13 +63,13 @@ abstract class NodeCreateOrEditViewModelBase with Store {
  String socksProxyAddress;

  @computed
-  bool get isReady => address.isNotEmpty && port.isNotEmpty;
+  bool get isReady =>
+      (address.isNotEmpty && port.isNotEmpty) ||
+      _walletType == WalletType.decred; // Allow an empty address.

  bool get hasAuthCredentials =>
      _walletType == WalletType.monero || _walletType == WalletType.wownero || _walletType == WalletType.haven;

-  bool get hasTestnetSupport => _walletType == WalletType.bitcoin;
-
  bool get hasPathSupport {
    switch (_walletType) {
      case WalletType.ethereum:
@@ -87,6 +87,7 @@ abstract class NodeCreateOrEditViewModelBase with Store {
      case WalletType.bitcoinCash:
      case WalletType.bitcoin:
      case WalletType.zano:
+      case WalletType.decred:
        return false;
    }
  }
@@ -49,50 +49,10 @@ abstract class NodeListViewModelBase with Store {
    await resetToDefault(_nodeSource);

    Node node;
-
-    switch (_appStore.wallet!.type) {
-      case WalletType.bitcoin:
-        if (_appStore.wallet!.isTestnet) {
-          node = getBitcoinTestnetDefaultElectrumServer(nodes: _nodeSource)!;
-        } else {
-          node = getBitcoinDefaultElectrumServer(nodes: _nodeSource)!;
-        }
-        break;
-      case WalletType.monero:
-        node = getMoneroDefaultNode(nodes: _nodeSource);
-        break;
-      case WalletType.litecoin:
-        node = getLitecoinDefaultElectrumServer(nodes: _nodeSource)!;
-        break;
-      case WalletType.haven:
-        node = getHavenDefaultNode(nodes: _nodeSource)!;
-        break;
-      case WalletType.ethereum:
-        node = getEthereumDefaultNode(nodes: _nodeSource)!;
-        break;
-      case WalletType.bitcoinCash:
-        node = getBitcoinCashDefaultElectrumServer(nodes: _nodeSource)!;
-        break;
-      case WalletType.nano:
-        node = getNanoDefaultNode(nodes: _nodeSource)!;
-        break;
-      case WalletType.polygon:
-        node = getPolygonDefaultNode(nodes: _nodeSource)!;
-        break;
-      case WalletType.solana:
-        node = getSolanaDefaultNode(nodes: _nodeSource)!;
-        break;
-      case WalletType.tron:
-        node = getTronDefaultNode(nodes: _nodeSource)!;
-        break;
-      case WalletType.wownero:
-        node = getWowneroDefaultNode(nodes: _nodeSource);
-        break;
-      case WalletType.zano:
-        node = getZanoDefaultNode(nodes: _nodeSource)!;
-        break;
-      default:
-        throw Exception('Unexpected wallet type: ${_appStore.wallet!.type}');
+    if (_appStore.wallet!.type == WalletType.bitcoin && _appStore.wallet!.isTestnet) {
+      node = getBitcoinTestnetDefaultElectrumServer(nodes: _nodeSource)!;
+    } else {
+      node = getDefaultNode(nodes: _nodeSource, type: _appStore.wallet!.type)!;
    }

    await setAsCurrent(node);
@@ -44,6 +44,9 @@ class WalletRestoreFromQRCode {
    'zano': WalletType.zano,
    'zano-wallet': WalletType.zano,
    'zano_wallet': WalletType.zano,
+    'decred': WalletType.decred,
+    'decred-wallet': WalletType.decred,
+    'decred_wallet': WalletType.decred,
  };

  static WalletType? _extractWalletType(String code) {
@@ -69,8 +72,12 @@ class WalletRestoreFromQRCode {
  }

  static String? _extractAddressFromUrl(String rawString, WalletType type) {
-    return AddressResolver.extractAddressByType(
-        raw: rawString, type: walletTypeToCryptoCurrency(type));
+    try {
+      return AddressResolver.extractAddressByType(
+          raw: rawString, type: walletTypeToCryptoCurrency(type));
+    } catch (_) {
+      return null;
+    }
  }

  static String? _extractSeedPhraseFromUrl(String rawString, WalletType walletType) {
@@ -122,7 +129,6 @@ class WalletRestoreFromQRCode {
    }
    if (queryParameters['address'] == null) {
      queryParameters['address'] = _extractAddressFromUrl(code, walletType);
-
    }

    Map<String, dynamic> credentials = {'type': walletType, ...queryParameters, 'raw_qr': code};
@@ -1,4 +1,5 @@
 import 'package:cake_wallet/bitcoin_cash/bitcoin_cash.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/entities/priority_for_wallet_type.dart';
 import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
 import 'package:cake_wallet/ethereum/ethereum.dart';
@@ -88,7 +89,13 @@ abstract class FeesViewModelBase extends WalletChangeListenerViewModel with Stor
        return transactionPriority == bitcoinCash!.getBitcoinCashTransactionPrioritySlow();
      case WalletType.polygon:
        return transactionPriority == polygon!.getPolygonTransactionPrioritySlow();
-      default:
+      case WalletType.decred:
+        return transactionPriority == decred!.getDecredTransactionPrioritySlow();
+      case WalletType.none:
+      case WalletType.nano:
+      case WalletType.banano:
+      case WalletType.solana:
+      case WalletType.tron:
        return false;
    }
  }
@@ -1,3 +1,4 @@
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/di.dart';
 import 'package:cake_wallet/entities/calculate_fiat_amount_raw.dart';
 import 'package:cake_wallet/entities/parse_address_from_domain.dart';
@@ -101,6 +102,9 @@ abstract class OutputBase with Store {
          case WalletType.bitcoinCash:
            _amount = bitcoin!.formatterStringDoubleToBitcoinAmount(_cryptoAmount);
            break;
+          case WalletType.decred:
+            _amount = decred!.formatterStringDoubleToDecredAmount(_cryptoAmount);
+            break;
          case WalletType.haven:
            _amount = haven!.formatterMoneroParseAmount(amount: _cryptoAmount);
            break;
@@ -188,6 +192,10 @@ abstract class OutputBase with Store {
      if (_wallet.type == WalletType.zano) {
        return zano!.formatterIntAmountToDouble(amount: fee, currency: cryptoCurrencyHandler(), forFee: true);
      }
+
+      if (_wallet.type == WalletType.decred) {
+        return decred!.formatterDecredAmountToDouble(amount: fee);
+      }
    } catch (e) {
      printV(e.toString());
    }
@@ -6,6 +6,7 @@ import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/exchange/provider/exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/thorchain_exchange.provider.dart';
 import 'package:cake_wallet/nano/nano.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/core/wallet_change_listener_view_model.dart';
 import 'package:cake_wallet/entities/contact_record.dart';
 import 'package:cake_wallet/entities/wallet_contact.dart';
@@ -251,6 +252,7 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
      wallet.type == WalletType.litecoin ||
      wallet.type == WalletType.monero ||
      wallet.type == WalletType.wownero ||
+      wallet.type == WalletType.decred ||
      wallet.type == WalletType.bitcoinCash;

  @computed
@@ -539,6 +541,9 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
      case WalletType.zano:
        return zano!.createZanoTransactionCredentials(
            outputs: outputs, priority: priority!, currency: selectedCryptoCurrency);
+      case WalletType.decred:
+        this.coinTypeToSpendFrom = UnspentCoinType.any;
+        return decred!.createDecredTransactionCredentials(outputs, priority!);
      default:
        throw Exception('Unexpected wallet type: ${wallet.type}');
    }
@@ -681,55 +686,51 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
      }
    }

-    if (walletType == WalletType.bitcoin ||
-        walletType == WalletType.litecoin ||
-        walletType == WalletType.bitcoinCash) {
-      if (error is TransactionWrongBalanceException) {
-        if (error.amount != null)
-          return S.current
-              .tx_wrong_balance_with_amount_exception(currency.toString(), error.amount.toString());
+    if (error is TransactionWrongBalanceException) {
+      if (error.amount != null)
+        return S.current
+            .tx_wrong_balance_with_amount_exception(currency.toString(), error.amount.toString());

-        return S.current.tx_wrong_balance_exception(currency.toString());
-      }
-      if (error is TransactionNoInputsException) {
-        return S.current.tx_not_enough_inputs_exception;
-      }
-      if (error is TransactionNoFeeException) {
-        return S.current.tx_zero_fee_exception;
-      }
-      if (error is TransactionNoDustException) {
-        return S.current.tx_no_dust_exception;
-      }
-      if (error is TransactionCommitFailed) {
-        if (error.errorMessage != null && error.errorMessage!.contains("no peers replied")) {
-          return S.current.tx_commit_failed_no_peers;
-        }
-        return "${S.current.tx_commit_failed}${error.errorMessage != null ? "\n\n${error.errorMessage}" : ""}";
-      }
-      if (error is TransactionCommitFailedDustChange) {
-        return S.current.tx_rejected_dust_change;
-      }
-      if (error is TransactionCommitFailedDustOutput) {
-        return S.current.tx_rejected_dust_output;
-      }
-      if (error is TransactionCommitFailedDustOutputSendAll) {
-        return S.current.tx_rejected_dust_output_send_all;
-      }
-      if (error is TransactionCommitFailedVoutNegative) {
-        return S.current.tx_rejected_vout_negative;
-      }
-      if (error is TransactionCommitFailedBIP68Final) {
-        return S.current.tx_rejected_bip68_final;
-      }
-      if (error is TransactionCommitFailedLessThanMin) {
-        return S.current.fee_less_than_min;
-      }
-      if (error is TransactionNoDustOnChangeException) {
-        return S.current.tx_commit_exception_no_dust_on_change(error.min, error.max);
-      }
-      if (error is TransactionInputNotSupported) {
-        return S.current.tx_invalid_input;
+      return S.current.tx_wrong_balance_exception(currency.toString());
+    }
+    if (error is TransactionNoInputsException) {
+      return S.current.tx_not_enough_inputs_exception;
+    }
+    if (error is TransactionNoFeeException) {
+      return S.current.tx_zero_fee_exception;
+    }
+    if (error is TransactionNoDustException) {
+      return S.current.tx_no_dust_exception;
+    }
+    if (error is TransactionCommitFailed) {
+      if (error.errorMessage != null && error.errorMessage!.contains("no peers replied")) {
+        return S.current.tx_commit_failed_no_peers;
      }
+      return "${S.current.tx_commit_failed}${error.errorMessage != null ? "\n\n${error.errorMessage}" : ""}";
+    }
+    if (error is TransactionCommitFailedDustChange) {
+      return S.current.tx_rejected_dust_change;
+    }
+    if (error is TransactionCommitFailedDustOutput) {
+      return S.current.tx_rejected_dust_output;
+    }
+    if (error is TransactionCommitFailedDustOutputSendAll) {
+      return S.current.tx_rejected_dust_output_send_all;
+    }
+    if (error is TransactionCommitFailedVoutNegative) {
+      return S.current.tx_rejected_vout_negative;
+    }
+    if (error is TransactionCommitFailedBIP68Final) {
+      return S.current.tx_rejected_bip68_final;
+    }
+    if (error is TransactionCommitFailedLessThanMin) {
+      return S.current.fee_less_than_min;
+    }
+    if (error is TransactionNoDustOnChangeException) {
+      return S.current.tx_commit_exception_no_dust_on_change(error.min, error.max);
+    }
+    if (error is TransactionInputNotSupported) {
+      return S.current.tx_invalid_input;
    }

    return errorMessage;
@@ -44,7 +44,8 @@ abstract class PrivacySettingsViewModelBase with Store {
      _wallet.type == WalletType.wownero ||
      _wallet.type == WalletType.bitcoin ||
      _wallet.type == WalletType.litecoin ||
-      _wallet.type == WalletType.bitcoinCash;
+      _wallet.type == WalletType.bitcoinCash ||
+      _wallet.type == WalletType.decred;

  bool get isMoneroWallet => _wallet.type == WalletType.monero;

@@ -48,6 +48,7 @@ abstract class TransactionDetailsViewModelBase with Store {
    final dateFormat = DateFormatter.withCurrentLocal();
    final tx = transactionInfo;

+    // TODO: can be cleaned further
    switch (wallet.type) {
      case WalletType.monero:
        _addMoneroListItems(tx, dateFormat);
@@ -84,8 +85,12 @@ abstract class TransactionDetailsViewModelBase with Store {
      case WalletType.zano:
        _addZanoListItems(tx, dateFormat);
        break;
-      default:
+      case WalletType.decred:
+        _addDecredListItems(tx, dateFormat);
        break;
+      case WalletType.none:
+      case WalletType.banano:
+      break;
    }

    final descriptionKey = '${transactionInfo.txHash}_${wallet.walletAddresses.primaryAddress}';
@@ -186,6 +191,8 @@ abstract class TransactionDetailsViewModelBase with Store {
        return 'https://explore.wownero.com/tx/${txId}';
      case WalletType.zano:
        return 'https://explorer.zano.org/transaction/${txId}';
+      case WalletType.decred:
+        return 'https://${wallet.isTestnet ? "testnet" : "dcrdata"}.decred.org/tx/${txId.split(':')[0]}';
      case WalletType.none:
        return '';
    }
@@ -218,6 +225,8 @@ abstract class TransactionDetailsViewModelBase with Store {
        return S.current.view_transaction_on + 'Wownero.com';
      case WalletType.zano:
        return S.current.view_transaction_on + 'explorer.zano.org';
+      case WalletType.decred:
+        return S.current.view_transaction_on + 'dcrdata.decred.org';
      case WalletType.none:
        return '';
    }
@@ -672,6 +681,51 @@ abstract class TransactionDetailsViewModelBase with Store {
    items.addAll(_items);
  }

+  void _addDecredListItems(TransactionInfo tx, DateFormat dateFormat) {
+    final _items = [
+      StandartListItem(
+        title: S.current.transaction_details_transaction_id,
+        value: tx.txHash,
+        key: ValueKey('standard_list_item_transaction_details_id_key'),
+      ),
+      StandartListItem(
+        title: S.current.transaction_details_date,
+        value: dateFormat.format(tx.date),
+        key: ValueKey('standard_list_item_transaction_details_date_key'),
+      ),
+      StandartListItem(
+        title: S.current.transaction_details_height,
+        value: '${tx.height}',
+        key: ValueKey('standard_list_item_transaction_details_height_key'),
+      ),
+      StandartListItem(
+        title: S.current.transaction_details_amount,
+        value: tx.amountFormatted(),
+        key: ValueKey('standard_list_item_transaction_details_amount_key'),
+      ),
+      if (tx.feeFormatted()?.isNotEmpty ?? false)
+        StandartListItem(
+          title: S.current.transaction_details_fee,
+          value: tx.feeFormatted()!,
+          key: ValueKey('standard_list_item_transaction_details_fee_key'),
+        ),
+      if (showRecipientAddress && tx.to != null)
+        StandartListItem(
+          title: S.current.transaction_details_recipient_address,
+          value: tx.to!,
+          key: ValueKey('standard_list_item_transaction_details_recipient_address_key'),
+        ),
+      if (tx.from != null)
+        StandartListItem(
+          title: S.current.transaction_details_source_address,
+          value: tx.from!,
+          key: ValueKey('standard_list_item_transaction_details_source_address_key'),
+        ),
+    ];
+
+    items.addAll(_items);
+  }
+
  @action
  Future<void> _checkForRBF(TransactionInfo tx) async {
    if (wallet.type == WalletType.bitcoin &&
@@ -1,6 +1,7 @@
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/monero/monero.dart';
 import 'package:cake_wallet/utils/exception_handler.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/view_model/unspent_coins/unspent_coins_item.dart';
 import 'package:cake_wallet/wownero/wownero.dart';
 import 'package:cw_core/unspent_coin_type.dart';
@@ -92,6 +93,8 @@ abstract class UnspentCoinsListViewModelBase with Store {
      return wownero!.formatterWowneroAmountToString(amount: fullBalance);
    if ([WalletType.bitcoin, WalletType.litecoin, WalletType.bitcoinCash].contains(wallet.type))
      return bitcoin!.formatterBitcoinAmountToString(amount: fullBalance);
+    if (wallet.type == WalletType.decred)
+      return decred!.formatterDecredAmountToString(amount: fullBalance);
    return '';
  }

@@ -105,7 +108,9 @@ abstract class UnspentCoinsListViewModelBase with Store {
    if ([WalletType.bitcoin, WalletType.litecoin, WalletType.bitcoinCash].contains(wallet.type)) {
      await bitcoin!.updateUnspents(wallet);
    }
-
+    if (wallet.type == WalletType.decred) {
+      decred!.updateUnspents(wallet);
+    }
    _updateUnspentCoinsInfo();
  }

@@ -119,6 +124,8 @@ abstract class UnspentCoinsListViewModelBase with Store {
      case WalletType.litecoin:
      case WalletType.bitcoinCash:
        return bitcoin!.getUnspents(wallet, coinTypeToSpendFrom: coinTypeToSpendFrom);
+      case WalletType.decred:
+        return decred!.getUnspents(wallet);
      default:
        return List.empty();
    }
@@ -5,6 +5,7 @@ import 'package:cw_core/wallet_base.dart';
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/monero/monero.dart';
 import 'package:cake_wallet/haven/haven.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cw_core/wallet_type.dart';

 part 'wallet_address_edit_or_create_view_model.g.dart';
@@ -27,13 +28,12 @@ class AddressEditOrCreateStateFailure extends AddressEditOrCreateState {
 }

 abstract class WalletAddressEditOrCreateViewModelBase with Store {
-  WalletAddressEditOrCreateViewModelBase(
-      {required WalletBase wallet, WalletAddressListItem? item})
+  WalletAddressEditOrCreateViewModelBase({required WalletBase wallet, WalletAddressListItem? item})
      : isEdit = item != null,
        state = AddressEditOrCreateStateInitial(),
        label = item?.name ?? '',
        _item = item,
-         _wallet = wallet;
+        _wallet = wallet;

  @observable
  AddressEditOrCreateState state;
@@ -46,7 +46,8 @@ abstract class WalletAddressEditOrCreateViewModelBase with Store {
  final WalletAddressListItem? _item;
  final WalletBase _wallet;

-  bool get isElectrum => _wallet.type == WalletType.bitcoin ||
+  bool get isElectrum =>
+      _wallet.type == WalletType.bitcoin ||
      _wallet.type == WalletType.bitcoinCash ||
      _wallet.type == WalletType.litecoin;

@@ -69,39 +70,46 @@ abstract class WalletAddressEditOrCreateViewModelBase with Store {
  Future<void> _createNew() async {
    final wallet = _wallet;

-    if (isElectrum) await bitcoin!.generateNewAddress(wallet, label);
+    if (isElectrum) {
+      await bitcoin!.generateNewAddress(wallet, label);
+      await wallet.save();
+    }
+
+    if (wallet.type == WalletType.decred) {
+      await decred!.generateNewAddress(wallet, label);
+      await wallet.save();
+    }

    if (wallet.type == WalletType.monero) {
-      await monero
-          !.getSubaddressList(wallet)
-          .addSubaddress(
-            wallet,
-            accountIndex: monero!.getCurrentAccount(wallet).id,
-            label: label);
-      final addr = await monero!.getSubaddressList(wallet).subaddresses.first.address; // first because the order is reversed
+      await monero!
+          .getSubaddressList(wallet)
+          .addSubaddress(wallet, accountIndex: monero!.getCurrentAccount(wallet).id, label: label);
+      final addr = await monero!
+          .getSubaddressList(wallet)
+          .subaddresses
+          .first
+          .address; // first because the order is reversed
      wallet.walletAddresses.manualAddresses.add(addr);
      await wallet.save();
    }

    if (wallet.type == WalletType.wownero) {
-      await wownero
-          !.getSubaddressList(wallet)
-          .addSubaddress(
-            wallet,
-            accountIndex: wownero!.getCurrentAccount(wallet).id,
-            label: label);
-      final addr = await wownero!.getSubaddressList(wallet).subaddresses.first.address; // first because the order is reversed
+      await wownero!
+          .getSubaddressList(wallet)
+          .addSubaddress(wallet, accountIndex: wownero!.getCurrentAccount(wallet).id, label: label);
+      final addr = await wownero!
+          .getSubaddressList(wallet)
+          .subaddresses
+          .first
+          .address; // first because the order is reversed
      wallet.walletAddresses.manualAddresses.add(addr);
      await wallet.save();
    }

    if (wallet.type == WalletType.haven) {
-      await haven
-          !.getSubaddressList(wallet)
-          .addSubaddress(
-            wallet,
-            accountIndex: haven!.getCurrentAccount(wallet).id,
-            label: label);
+      await haven!
+          .getSubaddressList(wallet)
+          .addSubaddress(wallet, accountIndex: haven!.getCurrentAccount(wallet).id, label: label);
      await wallet.save();
    }
  }
@@ -111,6 +119,12 @@ abstract class WalletAddressEditOrCreateViewModelBase with Store {

    if (isElectrum) await bitcoin!.updateAddress(wallet, _item!.address, label);

+    if (wallet.type == WalletType.decred) {
+      await decred!.updateAddress(wallet, _item!.address, label);
+      await wallet.save();
+      return;
+    }
+
    final index = _item?.id;
    if (index != null) {
      if (wallet.type == WalletType.monero) {
@@ -125,9 +139,7 @@ abstract class WalletAddressEditOrCreateViewModelBase with Store {
      }
      if (wallet.type == WalletType.haven) {
        await haven!.getSubaddressList(wallet).setLabelSubaddress(wallet,
-            accountIndex: haven!.getCurrentAccount(wallet).id,
-            addressIndex: index,
-            label: label);
+            accountIndex: haven!.getCurrentAccount(wallet).id, addressIndex: index, label: label);
        await wallet.save();
      }
    }
@@ -12,6 +12,7 @@ import 'package:cake_wallet/haven/haven.dart';
 import 'package:cake_wallet/monero/monero.dart';
 import 'package:cake_wallet/polygon/polygon.dart';
 import 'package:cake_wallet/solana/solana.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cake_wallet/store/settings_store.dart';
@@ -222,6 +223,22 @@ class ZanoURI extends PaymentURI {
  }
 }

+class DecredURI extends PaymentURI {
+  DecredURI({required String amount, required String address})
+      : super(amount: amount, address: address);
+
+  @override
+  String toString() {
+    var base = 'decred:' + address;
+
+    if (amount.isNotEmpty) {
+      base += '?amount=${amount.replaceAll(',', '.')}';
+    }
+
+    return base;
+  }
+}
+
 abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewModel with Store {
  WalletAddressListViewModelBase({
    required AppStore appStore,
@@ -313,7 +330,9 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
      case WalletType.wownero:
        return WowneroURI(amount: amount, address: address.address);
      case WalletType.zano:
-        return ZanoURI(amount: amount, address: address.address);
+         return ZanoURI(amount: amount, address: address.address);
+      case WalletType.decred:
+        return DecredURI(amount: amount, address: address.address);
      case WalletType.none:
        throw Exception('Unexpected type: ${type.toString()}');
    }
@@ -468,6 +487,14 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
      addressList.add(WalletAddressListItem(isPrimary: true, name: null, address: primaryAddress));
    }

+    if (wallet.type == WalletType.decred) {
+      final addrInfos = decred!.getAddressInfos(wallet);
+      addrInfos.forEach((info) {
+        addressList.add(new WalletAddressListItem(isPrimary: false, address: info.address,
+          name: info.label));
+      });
+    }
+
    for (var i = 0; i < addressList.length; i++) {
      if (!(addressList[i] is WalletAddressListItem)) continue;
      (addressList[i] as WalletAddressListItem).isHidden = wallet.walletAddresses.hiddenAddresses
@@ -561,7 +588,8 @@ abstract class WalletAddressListViewModelBase extends WalletChangeListenerViewMo
        WalletType.haven,
        WalletType.bitcoinCash,
        WalletType.bitcoin,
-        WalletType.litecoin
+        WalletType.litecoin,
+        WalletType.decred
      ].contains(wallet.type);

  @computed
@@ -12,6 +12,7 @@ import 'package:cw_core/wallet_type.dart';
 import 'package:cw_monero/monero_wallet.dart';
 import 'package:flutter/foundation.dart';
 import 'package:mobx/mobx.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:polyseed/polyseed.dart';

 part 'wallet_keys_view_model.g.dart';
@@ -155,6 +156,12 @@ abstract class WalletKeysViewModelBase with Store {
            ),
        ]);
        break;
+      case WalletType.decred:
+        final pubkey = decred!.pubkey(_appStore.wallet!);
+        items.addAll([
+          StandartListItem(title: S.current.view_key_public, value: pubkey),
+        ]);
+        break;
      case WalletType.bitcoin:
      case WalletType.litecoin:
      case WalletType.bitcoinCash:
@@ -248,6 +255,8 @@ abstract class WalletKeysViewModelBase with Store {
        return 'wownero-wallet';
      case WalletType.zano:
        return 'zano-wallet';
+      case WalletType.decred:
+        return 'decred-wallet';
      default:
        throw Exception('Unexpected wallet type: ${_wallet.type.toString()}');
    }
@@ -21,6 +21,7 @@ import 'package:cake_wallet/tron/tron.dart';
 import 'package:cake_wallet/view_model/seed_settings_view_model.dart';
 import 'package:cake_wallet/view_model/wallet_creation_vm.dart';
 import 'package:cake_wallet/wownero/wownero.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/wallet_credentials.dart';
 import 'package:cw_core/wallet_info.dart';
@@ -83,6 +84,8 @@ abstract class WalletNewVMBase extends WalletCreationVM with Store {
        return 25;
      case WalletType.zano:
        return 26;
+      case WalletType.decred:
+        return 15;
    }
  }

@@ -170,6 +173,8 @@ abstract class WalletNewVMBase extends WalletCreationVM with Store {
          password: walletPassword,
          passphrase: passphrase,
        );
+      case WalletType.decred:
+        return decred!.createDecredNewWalletCredentials(name: name);
      case WalletType.none:
        throw Exception('Unexpected type: ${type.toString()}');
    }
@@ -11,6 +11,7 @@ import 'package:cake_wallet/polygon/polygon.dart';
 import 'package:cake_wallet/solana/solana.dart';
 import 'package:cake_wallet/store/app_store.dart';
 import 'package:cake_wallet/tron/tron.dart';
+import 'package:cake_wallet/decred/decred.dart';
 import 'package:cake_wallet/view_model/restore/restore_mode.dart';
 import 'package:cake_wallet/view_model/restore/restore_wallet.dart';
 import 'package:cake_wallet/view_model/seed_settings_view_model.dart';
@@ -58,6 +59,7 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
      case WalletType.haven:
      case WalletType.ethereum:
      case WalletType.polygon:
+      case WalletType.decred:
        availableModes = [WalletRestoreMode.seed, WalletRestoreMode.keys];
        break;
      case WalletType.bitcoin:
@@ -77,6 +79,7 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
  }

  static const moneroSeedMnemonicLength = 25;
+  static const decredSeedMnemonicLength = 15;

  late List<WalletRestoreMode> availableModes;
  final bool hasSeedLanguageSelector;
@@ -171,11 +174,18 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
          );
        case WalletType.zano:
          return zano!.createZanoRestoreWalletFromSeedCredentials(
-            name: name, 
-            password: password, 
-            height: height, 
+            name: name,
+            password: password,
+            height: height,
            passphrase: passphrase??'',
-            mnemonic: seed);
+            mnemonic: seed,
+          );
+        case WalletType.decred:
+          return decred!.createDecredRestoreWalletFromSeedCredentials(
+              name: name,
+              mnemonic: seed,
+              password: password,
+          );
        case WalletType.none:
          break;
      }
@@ -251,6 +261,12 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
            password: password,
            language: 'English',
          );
+        case WalletType.decred:
+          return decred!.createDecredRestoreWalletFromPubkeyCredentials(
+            name: name,
+            password: password,
+            pubkey: viewKey!,
+          );
        default:
          break;
      }