Cw 78 ethereum (#862)

* Add initial flow for ethereum * Add initial create Eth wallet flow * Complete Ethereum wallet creation flow * Fix web3dart versioning issue * Add primary receive address extracted from private key * Implement open wallet functionality * Implement restore wallet from seed functionality * Fixate web3dart version as higher versions cause some issues * Add Initial Transaction priorities for eth Add estimated gas price * Rename priority value to tip * Re-order wallet types * Change ethereum node Fix connection issues * Fix estimating gas for priority * Add case for ethereum to fetch it's seeds * Add case for ethereum to request node * Fix Exchange screen initial pairs * Add initial send transaction flow * Add missing configure for ethereum class * Add Eth address initial setup * Fix Private key for Ethereum wallets * Change sign/send transaction flow * - Fix Conflicts with main - Remove unused function from Haven configure.dart * Add build command for ethereum package * Add missing Node list file to pubspec * - Fix balance display - Fix parsing of Ethereum amount - Add more Ethereum Nodes * - Fix extracting Ethereum Private key from seeds - Integrate signing/sending transaction with the send view model * - Update and Fix Conflicts with main * Add Balances for ERC20 tokens * Fix conflicts with main * Add erc20 abi json * Add send erc20 tokens initial function * add missing getHeightByDate in Haven * Allow contacts and wallets from the same tag * Add Shiba Inu icon * Add send ERC-20 tokens initial flow * Add missing import in generated file * Add initial approach for transaction sending for ERC-20 tokens * Refactor signing/sending transactions * Add initial flow for transactions subscription * Refactor signing/sending transactions * Add home settings icon * Fix conflicts with main * Initial flow for home settings * Add logic flow for adding erc20 tokens * Fix initial UI * Finalize UI for Tokens * Integrate UI with Ethereum flow * Add "Enable/Disable" feature for ERC20 tokens * Add initial Erc20 tokens * Add Sorting and Pin Native Token features * Fix price sorting * Sort tokens list as well when Sort criteria changes * - Improve sorting balances flow - Add initial add token from search bar flow * Fix Accounts Popup UI * Fix Pin native token * Fix Enabling/Disabling tokens Fix sorting by fiat once app is opened Improve token availability mechanism * Fix deleting token Fix renaming tokens * Fix issue with search * Add more tokens * - Fix scroll issue - Add ERC20 tokens placeholder image in picker * - Separate and organize default erc20 tokens - Fix scrolling - Add token placeholder images in picker - Sort disabled tokens alphabetically * Change BNB token initial availability * Fix Conflicts with main * Fix Conflicts with main * Add Verse ERC20 token to the initial tokens list * Add rename wallet to Ethereum * Integrate EtherScan API for fetching address transactions Generate Ethereum specific secrets in Ethereum package * Adjust transactions fiat price for ERC20 tokens * Free Up GitHub Actions Ubuntu Runner Disk Space * Free Up GitHub Actions Ubuntu Runner Disk space (trial 2) * Fix Transaction Fee display * Save transaction history * Enhance loading time for erc20 tokens transactions * Minor Fixes and Enhancements * Fix sending erc20 fix block explorer issue * Fix int overflow * Fix transaction amount conversions * Minor: `slow` -> `Slow` * Update build guide * Fix fetching fiat rate taking a lot of time by only fetching enabled tokens only and making the API calls in parallel not sequential * Update transactions on a periodic basis * For fee, use ETH spot price, not ERC-20 spot price * Add Etherscan History privacy option to enable/disable Etherscan API * Show estimated fee amounts in the send screen * fix send fiat fields parsing issue * Fix transactions estimated fee less than actual fee * handle balance sorting when balance is disabled Handle empty transactions list * Fix Delete Ethereum wallet Fix balance < 0.01 * Fix Decimal place for Ethereum amount Fix sending amount issue * Change words count * Remove balance hint and Full balance row from Ethereum wallets * support changing the asset type in send templates * Fix Templates for ERC tokens issues * Fix conflicts in send templates * Disable batch sending in Ethereum * Fix Fee calculation with different priorities * Fix Conflicts with main * Add offline error to ignored exceptions --------- Co-authored-by: Justin Ehrenhofer <justin.ehrenhofer@gmail.com>
2026-10-21 06:18:42 +02:00 · 2023-08-04 20:01:49 +03:00
parent 4120394121
commit 3ce4000dcf
137 changed files with 7164 additions and 1492 deletions
@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'package:cake_wallet/entities/contact_base.dart';
 import 'package:cake_wallet/entities/wallet_contact.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cw_core/wallet_info.dart';
@@ -57,11 +58,15 @@ abstract class ContactListViewModelBase with Store {

  @computed
  List<ContactRecord> get contactsToShow => contacts
-      .where((element) => _currency == null || element.type == _currency)
+      .where((element) => _isValidForCurrency(element))
      .toList();

  @computed
  List<WalletContact> get walletContactsToShow => walletContacts
-      .where((element) => _currency == null || element.type == _currency)
+      .where((element) => _isValidForCurrency(element))
      .toList();
+
+  bool _isValidForCurrency(ContactBase element) {
+    return _currency == null || element.type == _currency || element.type.title == _currency!.tag;
+  }
 }
@@ -1,4 +1,5 @@
 import 'package:cake_wallet/entities/fiat_api_mode.dart';
+import 'package:cake_wallet/entities/sort_balance_types.dart';
 import 'package:cw_core/transaction_history.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/balance.dart';
@@ -79,6 +80,15 @@ abstract class BalanceViewModelBase with Store {
  @computed
  bool get isFiatDisabled => settingsStore.fiatApiMode == FiatApiMode.disabled;

+  @computed
+  bool get isHomeScreenSettingsEnabled => wallet.type == WalletType.ethereum;
+
+  @computed
+  SortBalanceBy get sortBalanceBy => settingsStore.sortBalanceBy;
+
+  @computed
+  bool get pinNativeToken => settingsStore.pinNativeTokenAtTop;
+
  @computed
  String get asset {
    final typeFormatted = walletTypeToString(appStore.wallet!.type);
@@ -109,6 +119,7 @@ abstract class BalanceViewModelBase with Store {
    switch(wallet.type) {
      case WalletType.monero:
      case WalletType.haven:
+      case WalletType.ethereum:
        return S.current.xmr_available_balance;
      default:
        return S.current.confirmed;
@@ -120,6 +131,7 @@ abstract class BalanceViewModelBase with Store {
    switch(wallet.type) {
      case WalletType.monero:
      case WalletType.haven:
+      case WalletType.ethereum:
        return S.current.xmr_full_balance;
      default:
        return S.current.unconfirmed;
@@ -262,32 +274,58 @@ abstract class BalanceViewModelBase with Store {
      });
  }

+  @computed
+  bool get hasAdditionalBalance => wallet.type != WalletType.ethereum;
+
  @computed
  List<BalanceRecord> get formattedBalances {
    final balance = balances.values.toList();

    balance.sort((BalanceRecord a, BalanceRecord b) {
-      if (b.asset == CryptoCurrency.xhv) {
-        return 1;
-      }
-
-      if (b.asset == CryptoCurrency.xusd) {
-        if (a.asset == CryptoCurrency.xhv) {
-          return -1;
+      if (wallet.currency == CryptoCurrency.xhv) {
+        if (b.asset == CryptoCurrency.xhv) {
+          return 1;
        }

-        return 1;
+        if (b.asset == CryptoCurrency.xusd) {
+          if (a.asset == CryptoCurrency.xhv) {
+            return -1;
+          }
+
+          return 1;
+        }
+
+        if (b.asset == CryptoCurrency.xbtc) {
+          return 1;
+        }
+
+        if (b.asset == CryptoCurrency.xeur) {
+          return 1;
+        }
+
+        return 0;
      }

-      if (b.asset == CryptoCurrency.xbtc) {
-        return 1;
+      if (pinNativeToken) {
+        if (b.asset == wallet.currency) return 1;
+        if (a.asset == wallet.currency) return -1;
      }

-      if (b.asset == CryptoCurrency.xeur) {
-        return 1;
-      }
+      switch (sortBalanceBy) {
+        case SortBalanceBy.FiatBalance:
+          final aFiatBalance = _getFiatBalance(
+              price: fiatConvertationStore.prices[a.asset] ?? 0, cryptoAmount: a.availableBalance);
+          final bFiatBalance = _getFiatBalance(
+              price: fiatConvertationStore.prices[b.asset] ?? 0, cryptoAmount: b.availableBalance);

-      return 0;
+          return (double.tryParse(bFiatBalance) ?? 0)
+              .compareTo((double.tryParse(aFiatBalance)) ?? 0);
+        case SortBalanceBy.GrossBalance:
+          return (double.tryParse(b.availableBalance) ?? 0)
+              .compareTo(double.tryParse(a.availableBalance) ?? 0);
+        case SortBalanceBy.Alphabetical:
+          return a.asset.title.compareTo(b.asset.title);
+      }
    });

    return balance;
@@ -335,7 +373,7 @@ abstract class BalanceViewModelBase with Store {
  }

  String _getFiatBalance({required double price, String? cryptoAmount}) {
-    if (cryptoAmount == null || cryptoAmount.isEmpty) {
+    if (cryptoAmount == null || cryptoAmount.isEmpty || double.tryParse(cryptoAmount) == null) {
      return '0.00';
    }

@@ -0,0 +1,121 @@
+import 'package:cake_wallet/core/fiat_conversion_service.dart';
+import 'package:cake_wallet/entities/fiat_api_mode.dart';
+import 'package:cake_wallet/entities/sort_balance_types.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
+import 'package:cake_wallet/store/settings_store.dart';
+import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart';
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cw_core/erc20_token.dart';
+import 'package:mobx/mobx.dart';
+
+part 'home_settings_view_model.g.dart';
+
+class HomeSettingsViewModel = HomeSettingsViewModelBase with _$HomeSettingsViewModel;
+
+abstract class HomeSettingsViewModelBase with Store {
+  HomeSettingsViewModelBase(this._settingsStore, this._balanceViewModel)
+      : tokens = ObservableSet<Erc20Token>() {
+    _updateTokensList();
+  }
+
+  final SettingsStore _settingsStore;
+  final BalanceViewModel _balanceViewModel;
+
+  final ObservableSet<Erc20Token> tokens;
+
+  @observable
+  String searchText = '';
+
+  @computed
+  SortBalanceBy get sortBalanceBy => _settingsStore.sortBalanceBy;
+
+  @action
+  void setSortBalanceBy(SortBalanceBy value) {
+    _settingsStore.sortBalanceBy = value;
+    _updateTokensList();
+  }
+
+  @computed
+  bool get pinNativeToken => _settingsStore.pinNativeTokenAtTop;
+
+  @action
+  void setPinNativeToken(bool value) => _settingsStore.pinNativeTokenAtTop = value;
+
+  Future<void> addErc20Token(Erc20Token token) async {
+    await ethereum!.addErc20Token(_balanceViewModel.wallet, token);
+    _updateTokensList();
+    _updateFiatPrices(token);
+  }
+
+  Future<void> deleteErc20Token(Erc20Token token) async {
+    await ethereum!.deleteErc20Token(_balanceViewModel.wallet, token);
+    _updateTokensList();
+  }
+
+  Future<Erc20Token?> getErc20Token(String contractAddress) async =>
+      await ethereum!.getErc20Token(_balanceViewModel.wallet, contractAddress);
+
+  CryptoCurrency get nativeToken => _balanceViewModel.wallet.currency;
+
+  void _updateFiatPrices(Erc20Token token) async {
+    try {
+      _balanceViewModel.fiatConvertationStore.prices[token] =
+          await FiatConversionService.fetchPrice(
+              crypto: token,
+              fiat: _settingsStore.fiatCurrency,
+              torOnly: _settingsStore.fiatApiMode == FiatApiMode.torOnly);
+    } catch (_) {}
+  }
+
+  void changeTokenAvailability(Erc20Token token, bool value) async {
+    token.enabled = value;
+    ethereum!.addErc20Token(_balanceViewModel.wallet, token);
+    _refreshTokensList();
+  }
+
+  @action
+  void _updateTokensList() {
+    int _sortFunc(Erc20Token e1, Erc20Token e2) {
+      int index1 = _balanceViewModel.formattedBalances.indexWhere((element) => element.asset == e1);
+      int index2 = _balanceViewModel.formattedBalances.indexWhere((element) => element.asset == e2);
+
+      if (e1.enabled && !e2.enabled) {
+        return -1;
+      } else if (e2.enabled && !e1.enabled) {
+        return 1;
+      } else if (!e1.enabled && !e2.enabled) { // if both are disabled then sort alphabetically
+        return e1.name.compareTo(e2.name);
+      }
+
+      return index1.compareTo(index2);
+    }
+
+    tokens.clear();
+
+    tokens.addAll(ethereum!
+        .getERC20Currencies(_balanceViewModel.wallet)
+        .where((element) => _matchesSearchText(element))
+        .toList()
+      ..sort(_sortFunc));
+  }
+
+  @action
+  void _refreshTokensList() {
+    final _tokens = Set.of(tokens);
+    tokens.clear();
+    tokens.addAll(_tokens);
+  }
+
+  @action
+  void changeSearchText(String text) {
+    searchText = text;
+    _updateTokensList();
+  }
+
+  bool _matchesSearchText(Erc20Token asset) {
+    return searchText.isEmpty ||
+        asset.fullName!.toLowerCase().contains(searchText.toLowerCase()) ||
+        asset.title.toLowerCase().contains(searchText.toLowerCase()) ||
+        asset.contractAddress == searchText;
+  }
+}
@@ -1,5 +1,6 @@
 import 'package:cake_wallet/entities/balance_display_mode.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cw_core/transaction_direction.dart';
 import 'package:cw_core/transaction_info.dart';
@@ -84,6 +85,13 @@ class TransactionListItem extends ActionListItem with Keyable {
          cryptoAmount: haven!.formatterMoneroAmountToDouble(amount: transaction.amount),
          price: price);
        break;
+      case WalletType.ethereum:
+        final asset = ethereum!.assetOfTransaction(balanceViewModel.wallet, transaction);
+        final price = balanceViewModel.fiatConvertationStore.prices[asset];
+        amount = calculateFiatAmountRaw(
+            cryptoAmount: ethereum!.formatterEthereumAmountToDouble(transaction: transaction),
+            price: price);
+        break;
      default:
        break;
    }
@@ -699,6 +699,10 @@ abstract class ExchangeViewModelBase with Store {
        depositCurrency = CryptoCurrency.xhv;
        receiveCurrency = CryptoCurrency.btc;
        break;
+      case WalletType.ethereum:
+        depositCurrency = CryptoCurrency.eth;
+        receiveCurrency = CryptoCurrency.xmr;
+        break;
      default:
        break;
    }
@@ -63,6 +63,9 @@ abstract class NodeListViewModelBase with Store {
      case WalletType.haven:
        node = getHavenDefaultNode(nodes: _nodeSource)!;
        break;
+      case WalletType.ethereum:
+        node = getEthereumDefaultNode(nodes: _nodeSource)!;
+        break;
      default:
        throw Exception('Unexpected wallet type: ${_appStore.wallet!.type}');
    }
@@ -2,6 +2,7 @@ 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';
 import 'package:cake_wallet/entities/parsed_address.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/haven/haven.dart';
 import 'package:cake_wallet/src/screens/send/widgets/extract_address_from_parsed.dart';
 import 'package:cw_core/crypto_currency.dart';
@@ -90,6 +91,9 @@ abstract class OutputBase with Store {
          case WalletType.haven:
            _amount = haven!.formatterMoneroParseAmount(amount: _cryptoAmount);
            break;
+          case WalletType.ethereum:
+            _amount = ethereum!.formatterEthereumParseAmount(_cryptoAmount);
+            break;
          default:
            break;
        }
@@ -123,6 +127,10 @@ abstract class OutputBase with Store {
      if (_wallet.type == WalletType.haven) {
        return haven!.formatterMoneroAmountToDouble(amount: fee);
      }
+
+      if (_wallet.type == WalletType.ethereum) {
+        return ethereum!.formatterEthereumAmountToDouble(amount: BigInt.from(fee));
+      }
    } catch (e) {
      print(e.toString());
    }
@@ -133,8 +141,9 @@ abstract class OutputBase with Store {
  @computed
  String get estimatedFeeFiatAmount {
    try {
+      final currency = _wallet.type == WalletType.ethereum ? _wallet.currency : cryptoCurrencyHandler();
      final fiat = calculateFiatAmountRaw(
-          price: _fiatConversationStore.prices[cryptoCurrencyHandler()]!,
+          price: _fiatConversationStore.prices[currency]!,
          cryptoAmount: estimatedFee);
      return fiat;
    } catch (_) {
@@ -228,6 +237,9 @@ abstract class OutputBase with Store {
      case WalletType.haven:
        maximumFractionDigits = 12;
        break;
+      case WalletType.ethereum:
+        maximumFractionDigits = 12;
+        break;
      default:
        break;
    }
@@ -13,8 +13,7 @@ import 'package:cake_wallet/store/settings_store.dart';

 part 'send_template_view_model.g.dart';

-class SendTemplateViewModel = SendTemplateViewModelBase
-    with _$SendTemplateViewModel;
+class SendTemplateViewModel = SendTemplateViewModelBase with _$SendTemplateViewModel;

 abstract class SendTemplateViewModelBase with Store {
  final WalletBase _wallet;
@@ -22,8 +21,8 @@ abstract class SendTemplateViewModelBase with Store {
  final SendTemplateStore _sendTemplateStore;
  final FiatConversionStore _fiatConversationStore;

-  SendTemplateViewModelBase(this._wallet, this._settingsStore,
-      this._sendTemplateStore, this._fiatConversationStore)
+  SendTemplateViewModelBase(
+      this._wallet, this._settingsStore, this._sendTemplateStore, this._fiatConversationStore)
      : recipients = ObservableList<TemplateViewModel>() {
    addRecipient();
  }
@@ -33,7 +32,6 @@ abstract class SendTemplateViewModelBase with Store {
  @action
  void addRecipient() {
    recipients.add(TemplateViewModel(
-        cryptoCurrency: cryptoCurrency,
        wallet: _wallet,
        settingsStore: _settingsStore,
        fiatConversationStore: _fiatConversationStore));
@@ -47,11 +45,13 @@ abstract class SendTemplateViewModelBase with Store {
  AmountValidator get amountValidator =>
      AmountValidator(currency: walletTypeToCryptoCurrency(_wallet.type));

-  AddressValidator get addressValidator =>
-      AddressValidator(type: _wallet.currency);
+  AddressValidator get addressValidator => AddressValidator(type: _wallet.currency);

  TemplateValidator get templateValidator => TemplateValidator();

+  bool get hasMultiRecipient =>
+      _wallet.type != WalletType.haven && _wallet.type != WalletType.ethereum;
+
  @computed
  CryptoCurrency get cryptoCurrency => _wallet.currency;

@@ -68,6 +68,7 @@ abstract class SendTemplateViewModelBase with Store {
  void addTemplate(
      {required String name,
      required bool isCurrencySelected,
+      required String cryptoCurrency,
      required String address,
      required String amount,
      required String amountFiat,
@@ -76,7 +77,7 @@ abstract class SendTemplateViewModelBase with Store {
        name: name,
        isCurrencySelected: isCurrencySelected,
        address: address,
-        cryptoCurrency: cryptoCurrency.title,
+        cryptoCurrency: cryptoCurrency,
        fiatCurrency: fiatCurrency,
        amount: amount,
        amountFiat: amountFiat,
@@ -89,4 +90,7 @@ abstract class SendTemplateViewModelBase with Store {
    _sendTemplateStore.remove(template: template);
    updateTemplate();
  }
+
+  @computed
+  List<CryptoCurrency> get walletCurrencies => _wallet.balance.keys.toList();
 }
@@ -3,6 +3,7 @@ import 'package:cake_wallet/entities/priority_for_wallet_type.dart';
 import 'package:cake_wallet/entities/transaction_description.dart';
 import 'package:cake_wallet/entities/wallet_contact.dart';
 import 'package:cake_wallet/view_model/contact_list/contact_list_view_model.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/view_model/dashboard/balance_view_model.dart';
 import 'package:cw_core/transaction_priority.dart';
 import 'package:cake_wallet/view_model/send/output.dart';
@@ -45,6 +46,7 @@ abstract class SendViewModelBase with Store {
      : state = InitialExecutionState(),
        currencies = _wallet.balance.keys.toList(),
        selectedCryptoCurrency = _wallet.currency,
+        hasMultipleTokens = _wallet.type == WalletType.ethereum,
        outputs = ObservableList<Output>(),
        fiatFromSettings = _settingsStore.fiatCurrency {
    final priority = _settingsStore.priority[_wallet.type];
@@ -105,8 +107,11 @@ abstract class SendViewModelBase with Store {
  String get pendingTransactionFeeFiatAmount {
    try {
      if (pendingTransaction != null) {
+        final currency = walletType == WalletType.ethereum
+            ? _wallet.currency
+            : selectedCryptoCurrency;
        final fiat = calculateFiatAmount(
-            price: _fiatConversationStore.prices[selectedCryptoCurrency]!,
+            price: _fiatConversationStore.prices[currency]!,
            cryptoAmount: pendingTransaction!.feeFormatted);
        return fiat;
      } else {
@@ -131,14 +136,14 @@ abstract class SendViewModelBase with Store {

  CryptoCurrency get currency => _wallet.currency;

-  Validator get amountValidator =>
+  Validator<String> get amountValidator =>
      AmountValidator(currency: walletTypeToCryptoCurrency(_wallet.type));

-  Validator get allAmountValidator => AllAmountValidator();
+  Validator<String> get allAmountValidator => AllAmountValidator();

-  Validator get addressValidator => AddressValidator(type: selectedCryptoCurrency);
+  Validator<String> get addressValidator => AddressValidator(type: selectedCryptoCurrency);

-  Validator get textValidator => TextValidator();
+  Validator<String> get textValidator => TextValidator();

  final FiatCurrency fiatFromSettings;

@@ -146,7 +151,7 @@ abstract class SendViewModelBase with Store {
  PendingTransaction? pendingTransaction;

  @computed
-  String get balance => balanceViewModel.availableBalance;
+  String get balance => _wallet.balance[selectedCryptoCurrency]!.formattedAvailableBalance;

  @computed
  bool get isFiatDisabled => balanceViewModel.isFiatDisabled;
@@ -176,10 +181,9 @@ abstract class SendViewModelBase with Store {

  List<CryptoCurrency> currencies;

-  bool get hasMultiRecipient => _wallet.type != WalletType.haven;
-
-  bool get hasYat => outputs
-      .any((out) => out.isParsedAddress && out.parsedAddress.parseFrom == ParseFrom.yatRecord);
+  bool get hasYat => outputs.any((out) =>
+      out.isParsedAddress &&
+      out.parsedAddress.parseFrom == ParseFrom.yatRecord);

  WalletType get walletType => _wallet.type;

@@ -198,6 +202,7 @@ abstract class SendViewModelBase with Store {
  final ContactListViewModel contactListViewModel;
  final FiatConversionStore _fiatConversationStore;
  final Box<TransactionDescription> transactionDescriptionBox;
+  final bool hasMultipleTokens;

  @computed
  List<ContactRecord> get contactsToShow => contactListViewModel.contacts
@@ -351,6 +356,15 @@ abstract class SendViewModelBase with Store {

        return haven!.createHavenTransactionCreationCredentials(
            outputs: outputs, priority: priority, assetType: selectedCryptoCurrency.title);
+      case WalletType.ethereum:
+        final priority = _settingsStore.priority[_wallet.type];
+
+        if (priority == null) {
+          throw Exception('Priority is null for wallet type: ${_wallet.type}');
+        }
+
+        return ethereum!.createEthereumTransactionCredentials(
+            outputs, priority: priority, currency: selectedCryptoCurrency);
      default:
        throw Exception('Unexpected wallet type: ${_wallet.type}');
    }
@@ -369,11 +383,22 @@ abstract class SendViewModelBase with Store {
  }

  bool _isEqualCurrency(String currency) =>
-      currency.toLowerCase() == _wallet.currency.title.toLowerCase();
+      _wallet.balance.keys.any((e) => currency.toLowerCase() == e.title.toLowerCase());

  @action
  void onClose() => _settingsStore.fiatCurrency = fiatFromSettings;

  @action
-  void setFiatCurrency(FiatCurrency fiat) => _settingsStore.fiatCurrency = fiat;
+  void setFiatCurrency(FiatCurrency fiat) =>
+      _settingsStore.fiatCurrency = fiat;
+
+  @action
+  void setSelectedCryptoCurrency(String cryptoCurrency) {
+    try {
+      selectedCryptoCurrency = _wallet.balance.keys
+          .firstWhere((e) => cryptoCurrency.toLowerCase() == e.title.toLowerCase());
+    } catch (e) {
+      selectedCryptoCurrency = _wallet.currency;
+    }
+  }
 }
@@ -11,23 +11,20 @@ part 'template_view_model.g.dart';
 class TemplateViewModel = TemplateViewModelBase with _$TemplateViewModel;

 abstract class TemplateViewModelBase with Store {
-  final CryptoCurrency cryptoCurrency;
  final WalletBase _wallet;
  final SettingsStore _settingsStore;
  final FiatConversionStore _fiatConversationStore;

-  TemplateViewModelBase(
-      {required this.cryptoCurrency,
-      required WalletBase wallet,
-      required SettingsStore settingsStore,
-      required FiatConversionStore fiatConversationStore})
-      : _wallet = wallet,
+  TemplateViewModelBase({
+    required WalletBase wallet,
+    required SettingsStore settingsStore,
+    required FiatConversionStore fiatConversationStore,
+  })  : _wallet = wallet,
        _settingsStore = settingsStore,
        _fiatConversationStore = fiatConversationStore,
-        output = Output(wallet, settingsStore, fiatConversationStore,
-            () => wallet.currency) {
-    output = Output(
-        _wallet, _settingsStore, _fiatConversationStore, () => cryptoCurrency);
+        _currency = wallet.currency,
+        output = Output(wallet, settingsStore, fiatConversationStore, () => wallet.currency) {
+    output = Output(_wallet, _settingsStore, _fiatConversationStore, () => _currency);
  }

  @observable
@@ -39,6 +36,9 @@ abstract class TemplateViewModelBase with Store {
  @observable
  String address = '';

+  @observable
+  CryptoCurrency _currency;
+
  @observable
  bool isCurrencySelected = true;

@@ -66,8 +66,7 @@ abstract class TemplateViewModelBase with Store {
    output.reset();
  }

-  Template toTemplate(
-      {required String cryptoCurrency, required String fiatCurrency}) {
+  Template toTemplate({required String cryptoCurrency, required String fiatCurrency}) {
    return Template(
        isCurrencySelectedRaw: isCurrencySelected,
        nameRaw: name,
@@ -77,4 +76,13 @@ abstract class TemplateViewModelBase with Store {
        amountRaw: output.cryptoAmount,
        amountFiatRaw: output.fiatAmount);
  }
+
+  @action
+  void changeSelectedCurrency(CryptoCurrency currency) {
+    isCurrencySelected = true;
+    _currency = currency;
+  }
+
+  @computed
+  CryptoCurrency get selectedCurrency => _currency;
 }
@@ -1,5 +1,8 @@
 import 'package:cake_wallet/entities/exchange_api_mode.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/store/settings_store.dart';
+import 'package:cw_core/wallet_base.dart';
+import 'package:cw_core/wallet_type.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cake_wallet/entities/fiat_api_mode.dart';

@@ -8,9 +11,10 @@ part 'privacy_settings_view_model.g.dart';
 class PrivacySettingsViewModel = PrivacySettingsViewModelBase with _$PrivacySettingsViewModel;

 abstract class PrivacySettingsViewModelBase with Store {
-  PrivacySettingsViewModelBase(this._settingsStore);
+  PrivacySettingsViewModelBase(this._settingsStore, this._wallet);

  final SettingsStore _settingsStore;
+  final WalletBase _wallet;

  @computed
  ExchangeApiMode get exchangeStatus => _settingsStore.exchangeStatus;
@@ -30,8 +34,14 @@ abstract class PrivacySettingsViewModelBase with Store {
  @computed
  bool get disableSell => _settingsStore.disableSell;

+  @computed
+  bool get useEtherscan => _settingsStore.useEtherscan;
+
+  bool get canUseEtherscan => _wallet.type == WalletType.ethereum;
+
  @action
-  void setShouldSaveRecipientAddress(bool value) => _settingsStore.shouldSaveRecipientAddress = value;
+  void setShouldSaveRecipientAddress(bool value) =>
+      _settingsStore.shouldSaveRecipientAddress = value;

  @action
  void setExchangeApiMode(ExchangeApiMode value) => _settingsStore.exchangeStatus = value;
@@ -48,4 +58,9 @@ abstract class PrivacySettingsViewModelBase with Store {
  @action
  void setDisableSell(bool value) => _settingsStore.disableSell = value;

+  @action
+  void setUseEtherscan(bool value) {
+    _settingsStore.useEtherscan = value;
+    ethereum!.updateEtherscanUsageState(_wallet, value);
+  }
 }
@@ -9,6 +9,7 @@ import 'package:cw_core/transaction_direction.dart';
 import 'package:cake_wallet/utils/date_formatter.dart';
 import 'package:cake_wallet/entities/transaction_description.dart';
 import 'package:hive/hive.dart';
+import 'package:intl/src/intl/date_format.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/generated/i18n.dart';
@@ -27,105 +28,27 @@ abstract class TransactionDetailsViewModelBase with Store {
      required this.wallet,
      required this.settingsStore})
      : items = [],
-      isRecipientAddressShown = false,
-      showRecipientAddress = settingsStore.shouldSaveRecipientAddress {
+        isRecipientAddressShown = false,
+        showRecipientAddress = settingsStore.shouldSaveRecipientAddress {
    final dateFormat = DateFormatter.withCurrentLocal();
    final tx = transactionInfo;

-    if (wallet.type == WalletType.monero) {
-      final key = tx.additionalInfo['key'] as String?;
-      final accountIndex = tx.additionalInfo['accountIndex'] as int;
-      final addressIndex = tx.additionalInfo['addressIndex'] as int;
-      final feeFormatted = tx.feeFormatted();
-      final _items = [
-        StandartListItem(
-            title: S.current.transaction_details_transaction_id, value: tx.id),
-        StandartListItem(
-            title: S.current.transaction_details_date,
-            value: dateFormat.format(tx.date)),
-        StandartListItem(
-            title: S.current.transaction_details_height, value: '${tx.height}'),
-        StandartListItem(
-            title: S.current.transaction_details_amount,
-            value: tx.amountFormatted()),
-        if (feeFormatted != null)
-          StandartListItem(
-            title: S.current.transaction_details_fee, value: feeFormatted),
-        if (key?.isNotEmpty ?? false)
-          StandartListItem(title: S.current.transaction_key, value: key!)
-      ];
-
-      if (tx.direction == TransactionDirection.incoming &&
-          accountIndex != null &&
-          addressIndex != null) {
-        try {
-          final address = monero!.getTransactionAddress(wallet, accountIndex, addressIndex);
-          final label = monero!.getSubaddressLabel(wallet, accountIndex, addressIndex);
-
-          if (address?.isNotEmpty ?? false) {
-            isRecipientAddressShown = true;
-            _items.add(
-                StandartListItem(
-                    title: S.current.transaction_details_recipient_address,
-                    value: address));
-          }
-
-          if (label?.isNotEmpty ?? false) {
-            _items.add(
-                StandartListItem(
-                  title: S.current.address_label,
-                  value: label)
-            );
-          }
-        } catch (e) {
-          print(e.toString());
-        }
-      }
-
-      items.addAll(_items);
-    }
-
-    if (wallet.type == WalletType.bitcoin
-        || wallet.type == WalletType.litecoin) {
-      final _items = [
-        StandartListItem(
-            title: S.current.transaction_details_transaction_id, value: tx.id),
-        StandartListItem(
-            title: S.current.transaction_details_date,
-            value: dateFormat.format(tx.date)),
-        StandartListItem(
-            title: S.current.confirmations,
-            value: tx.confirmations.toString()),
-        StandartListItem(
-            title: S.current.transaction_details_height, value: '${tx.height}'),
-        StandartListItem(
-            title: S.current.transaction_details_amount,
-            value: tx.amountFormatted()),
-        if (tx.feeFormatted()?.isNotEmpty ?? false)
-          StandartListItem(
-              title: S.current.transaction_details_fee,
-              value: tx.feeFormatted()!),
-      ];
-
-      items.addAll(_items);
-    }
-
-    if (wallet.type == WalletType.haven) {
-      items.addAll([
-        StandartListItem(
-            title: S.current.transaction_details_transaction_id, value: tx.id),
-        StandartListItem(
-            title: S.current.transaction_details_date,
-            value: dateFormat.format(tx.date)),
-        StandartListItem(
-            title: S.current.transaction_details_height, value: '${tx.height}'),
-        StandartListItem(
-            title: S.current.transaction_details_amount,
-            value: tx.amountFormatted()),
-        if (tx.feeFormatted()?.isNotEmpty ?? false)
-          StandartListItem(
-            title: S.current.transaction_details_fee, value: tx.feeFormatted()!),
-      ]);
+    switch (wallet.type) {
+      case WalletType.monero:
+        _addMoneroListItems(tx, dateFormat);
+        break;
+      case WalletType.bitcoin:
+      case WalletType.litecoin:
+        _addElectrumListItems(tx, dateFormat);
+        break;
+      case WalletType.haven:
+        _addHavenListItems(tx, dateFormat);
+        break;
+      case WalletType.ethereum:
+        _addEthereumListItems(tx, dateFormat);
+        break;
+      default:
+        break;
    }

    if (showRecipientAddress && !isRecipientAddressShown) {
@@ -136,10 +59,9 @@ abstract class TransactionDetailsViewModelBase with Store {

        if (recipientAddress?.isNotEmpty ?? false) {
          items.add(StandartListItem(
-              title: S.current.transaction_details_recipient_address,
-              value: recipientAddress!));
+              title: S.current.transaction_details_recipient_address, value: recipientAddress!));
        }
-      } catch(_) {
+      } catch (_) {
        // FIX-ME: Unhandled exception
      }
    }
@@ -192,6 +114,8 @@ abstract class TransactionDetailsViewModelBase with Store {
        return 'https://blockchair.com/litecoin/transaction/${txId}';
      case WalletType.haven:
        return 'https://explorer.havenprotocol.org/search?value=${txId}';
+      case WalletType.ethereum:
+        return 'https://etherscan.io/tx/${txId}';
      default:
        return '';
    }
@@ -207,8 +131,92 @@ abstract class TransactionDetailsViewModelBase with Store {
        return S.current.view_transaction_on + 'Blockchair.com';
      case WalletType.haven:
        return S.current.view_transaction_on + 'explorer.havenprotocol.org';
+      case WalletType.ethereum:
+        return S.current.view_transaction_on + 'etherscan.io';
      default:
        return '';
    }
  }
+
+  void _addMoneroListItems(TransactionInfo tx, DateFormat dateFormat) {
+    final key = tx.additionalInfo['key'] as String?;
+    final accountIndex = tx.additionalInfo['accountIndex'] as int;
+    final addressIndex = tx.additionalInfo['addressIndex'] as int;
+    final feeFormatted = tx.feeFormatted();
+    final _items = [
+      StandartListItem(title: S.current.transaction_details_transaction_id, value: tx.id),
+      StandartListItem(
+          title: S.current.transaction_details_date, value: dateFormat.format(tx.date)),
+      StandartListItem(title: S.current.transaction_details_height, value: '${tx.height}'),
+      StandartListItem(title: S.current.transaction_details_amount, value: tx.amountFormatted()),
+      if (feeFormatted != null)
+        StandartListItem(title: S.current.transaction_details_fee, value: feeFormatted),
+      if (key?.isNotEmpty ?? false) StandartListItem(title: S.current.transaction_key, value: key!),
+    ];
+
+    if (tx.direction == TransactionDirection.incoming) {
+      try {
+        final address = monero!.getTransactionAddress(wallet, accountIndex, addressIndex);
+        final label = monero!.getSubaddressLabel(wallet, accountIndex, addressIndex);
+
+        if (address.isNotEmpty) {
+          isRecipientAddressShown = true;
+          _items.add(StandartListItem(
+            title: S.current.transaction_details_recipient_address,
+            value: address,
+          ));
+        }
+
+        if (label.isNotEmpty) {
+          _items.add(StandartListItem(title: S.current.address_label, value: label));
+        }
+      } catch (e) {
+        print(e.toString());
+      }
+    }
+
+    items.addAll(_items);
+  }
+
+  void _addElectrumListItems(TransactionInfo tx, DateFormat dateFormat) {
+    final _items = [
+      StandartListItem(title: S.current.transaction_details_transaction_id, value: tx.id),
+      StandartListItem(
+          title: S.current.transaction_details_date, value: dateFormat.format(tx.date)),
+      StandartListItem(title: S.current.confirmations, value: tx.confirmations.toString()),
+      StandartListItem(title: S.current.transaction_details_height, value: '${tx.height}'),
+      StandartListItem(title: S.current.transaction_details_amount, value: tx.amountFormatted()),
+      if (tx.feeFormatted()?.isNotEmpty ?? false)
+        StandartListItem(title: S.current.transaction_details_fee, value: tx.feeFormatted()!),
+    ];
+
+    items.addAll(_items);
+  }
+
+  void _addHavenListItems(TransactionInfo tx, DateFormat dateFormat) {
+    items.addAll([
+      StandartListItem(title: S.current.transaction_details_transaction_id, value: tx.id),
+      StandartListItem(
+          title: S.current.transaction_details_date, value: dateFormat.format(tx.date)),
+      StandartListItem(title: S.current.transaction_details_height, value: '${tx.height}'),
+      StandartListItem(title: S.current.transaction_details_amount, value: tx.amountFormatted()),
+      if (tx.feeFormatted()?.isNotEmpty ?? false)
+        StandartListItem(title: S.current.transaction_details_fee, value: tx.feeFormatted()!),
+    ]);
+  }
+
+  void _addEthereumListItems(TransactionInfo tx, DateFormat dateFormat) {
+    final _items = [
+      StandartListItem(title: S.current.transaction_details_transaction_id, value: tx.id),
+      StandartListItem(
+          title: S.current.transaction_details_date, value: dateFormat.format(tx.date)),
+      StandartListItem(title: S.current.confirmations, value: tx.confirmations.toString()),
+      StandartListItem(title: S.current.transaction_details_height, value: '${tx.height}'),
+      StandartListItem(title: S.current.transaction_details_amount, value: tx.amountFormatted()),
+      if (tx.feeFormatted()?.isNotEmpty ?? false)
+        StandartListItem(title: S.current.transaction_details_fee, value: tx.feeFormatted()!),
+    ];
+
+    items.addAll(_items);
+  }
 }
@@ -1,3 +1,4 @@
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
 import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cake_wallet/store/yat/yat_store.dart';
@@ -93,6 +94,22 @@ class LitecoinURI extends PaymentURI {
  }
 }

+class EthereumURI extends PaymentURI {
+  EthereumURI({required String amount, required String address})
+      : super(amount: amount, address: address);
+
+  @override
+  String toString() {
+    var base = 'ethereum:' + address;
+
+    if (amount.isNotEmpty) {
+      base += '?amount=${amount.replaceAll(',', '.')}';
+    }
+
+    return base;
+  }
+}
+
 abstract class WalletAddressListViewModelBase with Store {
  WalletAddressListViewModelBase({
    required AppStore appStore,
@@ -151,6 +168,10 @@ abstract class WalletAddressListViewModelBase with Store {
      return LitecoinURI(amount: amount, address: address.address);
    }

+    if (_wallet.type == WalletType.ethereum) {
+      return EthereumURI(amount: amount, address: address.address);
+    }
+
    throw Exception('Unexpected type: ${type.toString()}');
  }

@@ -202,6 +223,12 @@ abstract class WalletAddressListViewModelBase with Store {
      addressList.addAll(bitcoinAddresses);
    }

+    if (wallet.type == WalletType.ethereum) {
+      final primaryAddress = ethereum!.getAddress(wallet);
+
+      addressList.add(WalletAddressListItem(isPrimary: true, name: null, address: primaryAddress));
+    }
+
    return addressList;
  }

@@ -226,6 +253,10 @@ abstract class WalletAddressListViewModelBase with Store {
  @computed
  bool get hasAddressList => _wallet.type == WalletType.monero || _wallet.type == WalletType.haven;

+  @computed
+  bool get showElectrumAddressDisclaimer =>
+      _wallet.type == WalletType.bitcoin || _wallet.type == WalletType.litecoin;
+
  @observable
  WalletBase<Balance, TransactionHistoryBase<TransactionInfo>, TransactionInfo> _wallet;

@@ -17,7 +17,8 @@ class WalletKeysViewModel = WalletKeysViewModelBase with _$WalletKeysViewModel;
 abstract class WalletKeysViewModelBase with Store {
  WalletKeysViewModelBase(this._appStore)
      : title = _appStore.wallet!.type == WalletType.bitcoin ||
-                _appStore.wallet!.type == WalletType.litecoin
+                _appStore.wallet!.type == WalletType.litecoin ||
+                _appStore.wallet!.type == WalletType.ethereum
            ? S.current.wallet_seed
            : S.current.wallet_keys,
        _restoreHeight = _appStore.wallet!.walletInfo.restoreHeight,
@@ -89,7 +90,8 @@ abstract class WalletKeysViewModelBase with Store {
    }

    if (_appStore.wallet!.type == WalletType.bitcoin ||
-        _appStore.wallet!.type == WalletType.litecoin) {
+        _appStore.wallet!.type == WalletType.litecoin ||
+        _appStore.wallet!.type == WalletType.ethereum) {
      items.addAll([
        StandartListItem(title: S.current.wallet_seed, value: _appStore.wallet!.seed),
      ]);
@@ -116,6 +118,8 @@ abstract class WalletKeysViewModelBase with Store {
        return 'litecoin-wallet';
      case WalletType.haven:
        return 'haven-wallet';
+      case WalletType.ethereum:
+        return 'ethereum-wallet';
      default:
        throw Exception('Unexpected wallet type: ${_appStore.wallet!.toString()}');
    }
@@ -1,4 +1,5 @@
 import 'package:cake_wallet/view_model/restore/restore_wallet.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:flutter/foundation.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
@@ -42,6 +43,8 @@ abstract class WalletNewVMBase extends WalletCreationVM with Store {
      case WalletType.haven:
        return haven!.createHavenNewWalletCredentials(
            name: name, language: options as String);
+      case WalletType.ethereum:
+        return ethereum!.createEthereumNewWalletCredentials(name: name);
      default:
        throw Exception('Unexpected type: ${type.toString()}');;
    }
@@ -2,6 +2,7 @@ import 'package:cake_wallet/bitcoin/bitcoin.dart';
 import 'package:cake_wallet/core/mnemonic_length.dart';
 import 'package:cake_wallet/view_model/restore/restore_wallet.dart';
 import 'package:flutter/foundation.dart';
+import 'package:cake_wallet/ethereum/ethereum.dart';
 import 'package:hive/hive.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cake_wallet/store/app_store.dart';
@@ -85,6 +86,11 @@ abstract class WalletRestoreViewModelBase extends WalletCreationVM with Store {
              height: height,
              mnemonic: seed,
              password: password);
+        case WalletType.ethereum:
+          return ethereum!.createEthereumRestoreWalletFromSeedCredentials(
+              name: name,
+              mnemonic: seed,
+              password: password);
        default:
          break;
      }