Merge pull request #765 from cake-tech/CW-282-add-trocador-exchange

CW-282 add trocador exchange
2025-01-03 09:29:48 +00:00 · 2023-03-02 21:42:30 +02:00 · 2023-03-02 21:42:30 +02:00 · 3128d458f8
commit 3128d458f8
parent 960f761c05 60f47e5e9f
27 changed files with 680 additions and 188 deletions
--- a/.github/workflows/pr_test_build.yml
+++ b/.github/workflows/pr_test_build.yml
@ -111,6 +111,8 @@ jobs:
          echo "const anypayToken = '${{ secrets.ANY_PAY_TOKEN }}';" >> lib/.secrets.g.dart
          echo "const ioniaClientId = '${{ secrets.IONIA_CLIENT_ID }}';" >> lib/.secrets.g.dart
          echo "const twitterBearerToken = '${{ secrets.TWITTER_BEARER_TOKEN }}';" >> lib/.secrets.g.dart
+          echo "const trocadorApiKey = '${{ secrets.TROCADOR_API_KEY }}';" >> lib/.secrets.g.dart
+          echo "const trocadorExchangeMarkup = '${{ secrets.TROCADOR_EXCHANGE_MARKUP }}';" >> lib/.secrets.g.dart

      - name: Rename app
        run: echo -e "id=com.cakewallet.test\nname=$GITHUB_HEAD_REF" > /opt/android/cake_wallet/android/app.properties
--- a/assets/images/trocador.png
+++ b/assets/images/trocador.png
--- a/cw_core/lib/crypto_currency.dart
+++ b/cw_core/lib/crypto_currency.dart
@ -117,7 +117,7 @@ class CryptoCurrency extends EnumerableItem<int> with Serializable<int> {
  static const xusd = CryptoCurrency(title: 'XUSD', tag: 'XHV', raw: 29, name: 'xusd');

  static const ape = CryptoCurrency(title: 'APE', tag: 'ETH', fullName: 'ApeCoin', raw: 30, name: 'ape', iconPath: 'assets/images/ape_icon.png');
-  static const avaxc = CryptoCurrency(title: 'AVAX', tag: 'C-CHAIN', raw: 31, name: 'avaxc', iconPath: 'assets/images/avaxc_icon.png');
+  static const avaxc = CryptoCurrency(title: 'AVAX', tag: 'AVAXC', raw: 31, name: 'avaxc', iconPath: 'assets/images/avaxc_icon.png');
  static const btt = CryptoCurrency(title: 'BTT', tag: 'ETH', fullName: 'BitTorrent', raw: 32, name: 'btt', iconPath: 'assets/images/btt_icon.png');
  static const bttc = CryptoCurrency(title: 'BTTC', tag: 'TRX', fullName: 'BitTorrent-NEW', raw: 33, name: 'bttc', iconPath: 'assets/images/bttbsc_icon.png');
  static const doge = CryptoCurrency(title: 'DOGE', fullName: 'Dogecoin', raw: 34, name: 'doge', iconPath: 'assets/images/doge_icon.png');
--- a/cw_core/pubspec.yaml
+++ b/cw_core/pubspec.yaml
@ -13,6 +13,7 @@ dependencies:
  flutter:
    sdk: flutter
  http: ^0.13.4
+  file: ^6.1.4
  path_provider: ^2.0.11
  mobx: ^2.0.7+4
  flutter_mobx: ^2.0.6+1
--- a/lib/core/backup_service.dart
+++ b/lib/core/backup_service.dart
@ -217,7 +217,7 @@ class BackupService {
    final fiatApiMode = data[PreferencesKey.currentFiatApiModeKey] as int?;
    final currentPinLength = data[PreferencesKey.currentPinLength] as int?;
    final currentTheme = data[PreferencesKey.currentTheme] as int?;
-    final disableExchange = data[PreferencesKey.disableExchangeKey] as bool?;
+    final exchangeStatus = data[PreferencesKey.exchangeStatusKey] as int?;
    final currentDefaultSettingsMigrationVersion = data[PreferencesKey.currentDefaultSettingsMigrationVersion] as int?;
    final moneroTransactionPriority = data[PreferencesKey.moneroTransactionPriority] as int?;
    final bitcoinTransactionPriority = data[PreferencesKey.bitcoinTransactionPriority] as int?;
@ -280,9 +280,9 @@ class BackupService {
      await _sharedPreferences.setInt(
        PreferencesKey.currentTheme, currentTheme);

-    if (disableExchange != null)
-      await _sharedPreferences.setBool(
-        PreferencesKey.disableExchangeKey, disableExchange);
+    if (exchangeStatus != null)
+      await _sharedPreferences.setInt(
+        PreferencesKey.exchangeStatusKey, exchangeStatus);

    if (currentDefaultSettingsMigrationVersion != null)
      await _sharedPreferences.setInt(
@ -431,8 +431,8 @@ class BackupService {
          _sharedPreferences.getInt(PreferencesKey.displayActionListModeKey),
      PreferencesKey.currentTheme:
          _sharedPreferences.getInt(PreferencesKey.currentTheme),
-      PreferencesKey.disableExchangeKey:
-          _sharedPreferences.getBool(PreferencesKey.disableExchangeKey),
+      PreferencesKey.exchangeStatusKey:
+          _sharedPreferences.getInt(PreferencesKey.exchangeStatusKey),
      PreferencesKey.currentDefaultSettingsMigrationVersion: _sharedPreferences
          .getInt(PreferencesKey.currentDefaultSettingsMigrationVersion),
      PreferencesKey.bitcoinTransactionPriority:
--- a/lib/entities/default_settings_migration.dart
+++ b/lib/entities/default_settings_migration.dart
@ -1,10 +1,12 @@
 import 'dart:io' show File, Platform;
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cw_core/pathForWallet.dart';
 import 'package:cake_wallet/entities/secret_store_key.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:hive/hive.dart';
+import 'package:share_plus/share_plus.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cw_core/wallet_type.dart';
@ -142,7 +144,9 @@ Future defaultSettingsMigration(
        case 19:
          await validateBitcoinSavedTransactionPriority(sharedPreferences);
          break;
-
+        case 20:
+          await migrateExchangeStatus(sharedPreferences);
+          break;
        default:
          break;
      }
@ -501,3 +505,15 @@ Future<void> changeDefaultHavenNode(
    await node.save();
  });
 }
+
+Future<void> migrateExchangeStatus(SharedPreferences sharedPreferences) async {
+  final isExchangeDisabled = sharedPreferences.getBool(PreferencesKey.disableExchangeKey);
+  if (isExchangeDisabled == null) {
+    return;
+  }
+
+  await sharedPreferences.setInt(PreferencesKey.exchangeStatusKey, isExchangeDisabled 
+      ? ExchangeApiMode.disabled.raw : ExchangeApiMode.enabled.raw);
+      
+  await sharedPreferences.remove(PreferencesKey.disableExchangeKey);
+}
--- a/lib/entities/exchange_api_mode.dart
+++ b/lib/entities/exchange_api_mode.dart
@ -0,0 +1,39 @@
+import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cw_core/enumerable_item.dart';
+
+class ExchangeApiMode extends EnumerableItem<int> with Serializable<int> {
+  const ExchangeApiMode({required String title, required int raw}) : super(title: title, raw: raw);
+
+  static const all = [ExchangeApiMode.enabled, ExchangeApiMode.torOnly, ExchangeApiMode.disabled];
+
+  static const enabled = ExchangeApiMode(raw: 0, title: 'Enabled');
+  static const torOnly = ExchangeApiMode(raw: 1, title: 'Tor only');
+  static const disabled = ExchangeApiMode(raw: 2, title: 'Disabled');
+
+  static ExchangeApiMode deserialize({required int raw}) {
+    switch (raw) {
+      case 0:
+        return enabled;
+      case 1:
+        return torOnly;
+      case 2:
+        return disabled;
+      default:
+        throw Exception('Unexpected token: $raw for ExchangeApiMode deserialize');
+    }
+  }
+
+  @override
+  String toString() {
+    switch (this) {
+      case ExchangeApiMode.enabled:
+        return S.current.enabled;
+      case ExchangeApiMode.torOnly:
+        return S.current.tor_only;
+      case ExchangeApiMode.disabled:
+        return S.current.disabled;
+      default:
+        return '';
+    }
+  }
+}
--- a/lib/entities/preferences_key.dart
+++ b/lib/entities/preferences_key.dart
@ -13,6 +13,7 @@ class PreferencesKey {
  static const allowBiometricalAuthenticationKey =
      'allow_biometrical_authentication';
  static const disableExchangeKey = 'disable_exchange';
+  static const exchangeStatusKey = 'exchange_status';
  static const currentTheme = 'current_theme';
  static const isDarkThemeLegacy = 'dark_theme';
  static const displayActionListModeKey = 'display_list_mode';
--- a/lib/exchange/changenow/changenow_exchange_provider.dart
+++ b/lib/exchange/changenow/changenow_exchange_provider.dart
@ -269,6 +269,7 @@ class ChangeNowExchangeProvider extends ExchangeProvider {
            : currency.title.toLowerCase();
      }
    }
+
  }

   String normalizeCryptoCurrency(CryptoCurrency currency) {
--- a/lib/exchange/exchange_provider.dart
+++ b/lib/exchange/exchange_provider.dart
@ -14,6 +14,7 @@ abstract class ExchangeProvider {
  bool get isAvailable;
  bool get isEnabled;
  bool get supportsFixedRate;
+  bool get supportsOnionAddress => false;

  @override
  String toString() => title;
--- a/lib/exchange/exchange_provider_description.dart
+++ b/lib/exchange/exchange_provider_description.dart
@ -1,31 +1,30 @@
 import 'package:cw_core/enumerable_item.dart';

-class ExchangeProviderDescription extends EnumerableItem<int>
-    with Serializable<int> {
-  const ExchangeProviderDescription({
-    required String title,
-    required int raw,
-    required this.image,
-    this.horizontalLogo = false})
+class ExchangeProviderDescription extends EnumerableItem<int> with Serializable<int> {
+  const ExchangeProviderDescription(
+      {required String title, required int raw, required this.image, this.horizontalLogo = false})
      : super(title: title, raw: raw);

  final bool horizontalLogo;
  final String image;

-  static const xmrto = ExchangeProviderDescription(title: 'XMR.TO', raw: 0, image: 'assets/images/xmrto.png');
+  static const xmrto =
+      ExchangeProviderDescription(title: 'XMR.TO', raw: 0, image: 'assets/images/xmrto.png');
  static const changeNow =
      ExchangeProviderDescription(title: 'ChangeNOW', raw: 1, image: 'assets/images/changenow.png');
  static const morphToken =
      ExchangeProviderDescription(title: 'MorphToken', raw: 2, image: 'assets/images/morph.png');

-   static const sideShift =
+  static const sideShift =
      ExchangeProviderDescription(title: 'SideShift', raw: 3, image: 'assets/images/sideshift.png');

-  static const simpleSwap =
-      ExchangeProviderDescription(title: 'SimpleSwap', raw: 4, image: 'assets/images/simpleSwap.png');
+  static const simpleSwap = ExchangeProviderDescription(
+      title: 'SimpleSwap', raw: 4, image: 'assets/images/simpleSwap.png');

-  static const all =
-      ExchangeProviderDescription(title: 'All trades', raw: 5, image:'');
+  static const trocador =
+      ExchangeProviderDescription(title: 'Trocador', raw: 5, image: 'assets/images/trocador.png');
+
+  static const all = ExchangeProviderDescription(title: 'All trades', raw: 6, image: '');

  static ExchangeProviderDescription deserialize({required int raw}) {
    switch (raw) {
@ -40,6 +39,8 @@ class ExchangeProviderDescription extends EnumerableItem<int>
      case 4:
        return simpleSwap;
      case 5:
+        return trocador;
+      case 6:
        return all;
      default:
        throw Exception('Unexpected token: $raw for ExchangeProviderDescription deserialize');
--- a/lib/exchange/trade.dart
+++ b/lib/exchange/trade.dart
@ -8,21 +8,25 @@ part 'trade.g.dart';

@HiveType(typeId: Trade.typeId)
 class Trade extends HiveObject {
-  Trade(
-      {required this.id,
-      required this.amount,
-      ExchangeProviderDescription? provider,
-      CryptoCurrency? from,
-      CryptoCurrency? to,
-      TradeState? state,
-      this.createdAt,
-      this.expiredAt,
-      this.inputAddress,
-      this.extraId,
-      this.outputTransaction,
-      this.refundAddress,
-      this.walletId,
-      this.payoutAddress}) {
+  Trade({
+    required this.id,
+    required this.amount,
+    ExchangeProviderDescription? provider,
+    CryptoCurrency? from,
+    CryptoCurrency? to,
+    TradeState? state,
+    this.createdAt,
+    this.expiredAt,
+    this.inputAddress,
+    this.extraId,
+    this.outputTransaction,
+    this.refundAddress,
+    this.walletId,
+    this.payoutAddress,
+    this.password,
+    this.providerId,
+    this.providerName,
+  }) {
    if (provider != null) {
      providerRaw = provider.raw;
    }
@ -92,16 +96,23 @@ class Trade extends HiveObject {
  @HiveField(13)
  String? payoutAddress;

+  @HiveField(14)
+  String? password;
+
+  @HiveField(15)
+  String? providerId;
+
+  @HiveField(16)
+  String? providerName;
+
  static Trade fromMap(Map<String, Object?> map) {
    return Trade(
        id: map['id'] as String,
-        provider: ExchangeProviderDescription.deserialize(
-            raw: map['provider'] as int),
+        provider: ExchangeProviderDescription.deserialize(raw: map['provider'] as int),
        from: CryptoCurrency.deserialize(raw: map['input'] as int),
        to: CryptoCurrency.deserialize(raw: map['output'] as int),
-        createdAt: map['date'] != null
-            ? DateTime.fromMillisecondsSinceEpoch(map['date'] as int)
-            : null,
+        createdAt:
+            map['date'] != null ? DateTime.fromMillisecondsSinceEpoch(map['date'] as int) : null,
        amount: map['amount'] as String,
        walletId: map['wallet_id'] as String);
  }
--- a/lib/exchange/trocador/trocador_exchange_provider.dart
+++ b/lib/exchange/trocador/trocador_exchange_provider.dart
@ -0,0 +1,312 @@
+import 'dart:convert';
+
+import 'package:cake_wallet/exchange/exchange_pair.dart';
+import 'package:cake_wallet/exchange/exchange_provider.dart';
+import 'package:cake_wallet/exchange/trade_state.dart';
+import 'package:cake_wallet/exchange/trocador/trocador_request.dart';
+import 'package:cw_core/crypto_currency.dart';
+import 'package:cake_wallet/exchange/trade_request.dart';
+import 'package:cake_wallet/exchange/trade.dart';
+import 'package:cake_wallet/exchange/limits.dart';
+import 'package:cake_wallet/exchange/exchange_provider_description.dart';
+import 'package:cake_wallet/.secrets.g.dart' as secrets;
+import 'package:http/http.dart';
+
+class TrocadorExchangeProvider extends ExchangeProvider {
+  TrocadorExchangeProvider({this.useTorOnly = false})
+      : _lastUsedRateId = '',
+        super(pairList: _supportedPairs());
+
+  bool useTorOnly;
+
+  static const List<CryptoCurrency> _notSupported = [
+    CryptoCurrency.scrt,
+    CryptoCurrency.stx,
+    CryptoCurrency.zaddr,
+  ];
+
+  static List<ExchangePair> _supportedPairs() {
+    final supportedCurrencies =
+        CryptoCurrency.all.where((element) => !_notSupported.contains(element)).toList();
+
+    return supportedCurrencies
+        .map((i) => supportedCurrencies.map((k) => ExchangePair(from: i, to: k, reverse: true)))
+        .expand((i) => i)
+        .toList();
+  }
+
+  static const onionApiAuthority = 'trocadorfyhlu27aefre5u7zri66gudtzdyelymftvr4yjwcxhfaqsid.onion';
+  static const clearNetAuthority = 'trocador.app';
+  static const apiKey = secrets.trocadorApiKey;
+  static const markup = secrets.trocadorExchangeMarkup;
+  static const newRatePath = '/api/new_rate';
+  static const createTradePath = 'api/new_trade';
+  static const tradePath = 'api/trade';
+  static const coinPath = 'api/coin';
+  String _lastUsedRateId;
+
+  @override
+  Future<bool> checkIsAvailable() async => true;
+
+  @override
+  Future<Trade> createTrade({required TradeRequest request, required bool isFixedRateMode}) {
+    final _request = request as TrocadorRequest;
+    return _createTrade(request: _request, isFixedRateMode: isFixedRateMode);
+  }
+
+  Future<Trade> _createTrade({
+    required TrocadorRequest request,
+    required bool isFixedRateMode,
+  }) async {
+    final params = <String, String>{
+      'api_key': apiKey,
+      'ticker_from': request.from.title.toLowerCase(),
+      'ticker_to': request.to.title.toLowerCase(),
+      'network_from': _networkFor(request.from),
+      'network_to': _networkFor(request.to),
+      'payment': isFixedRateMode ? 'True' : 'False',
+      'min_kycrating': 'C',
+      'markup': markup,
+      'best_only': 'True',
+      if (!isFixedRateMode) 'amount_from': request.fromAmount,
+      if (isFixedRateMode) 'amount_to': request.toAmount,
+      'address': request.address,
+      'refund': request.refundAddress
+    };
+
+    if (isFixedRateMode) {
+      await fetchRate(
+        from: request.from,
+        to: request.to,
+        amount: double.tryParse(request.toAmount) ?? 0,
+        isFixedRateMode: true,
+        isReceiveAmount: true,
+      );
+      params['id'] = _lastUsedRateId;
+    }
+
+    final uri = await _getUri(createTradePath, params);
+    final response = await get(uri);
+
+    if (response.statusCode == 400) {
+      final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+      final error = responseJSON['error'] as String;
+      final message = responseJSON['message'] as String;
+      throw Exception('${error}\n$message');
+    }
+
+    if (response.statusCode != 200) {
+      throw Exception('Unexpected http status: ${response.statusCode}');
+    }
+
+    final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+    final id = responseJSON['trade_id'] as String;
+    final inputAddress = responseJSON['address_provider'] as String;
+    final refundAddress = responseJSON['refund_address'] as String;
+    final status = responseJSON['status'] as String;
+    final state = TradeState.deserialize(raw: status);
+    final payoutAddress = responseJSON['address_user'] as String;
+    final date = responseJSON['date'] as String;
+    final password = responseJSON['password'] as String;
+    final providerId = responseJSON['id_provider'] as String;
+    final providerName = responseJSON['provider'] as String;
+
+    return Trade(
+        id: id,
+        from: request.from,
+        to: request.to,
+        provider: description,
+        inputAddress: inputAddress,
+        refundAddress: refundAddress,
+        state: state,
+        password: password,
+        providerId: providerId,
+        providerName: providerName,
+        createdAt: DateTime.tryParse(date)?.toLocal(),
+        amount: responseJSON['amount_from']?.toString() ?? request.fromAmount,
+        payoutAddress: payoutAddress);
+  }
+
+  @override
+  ExchangeProviderDescription get description => ExchangeProviderDescription.trocador;
+
+  @override
+  Future<Limits> fetchLimits(
+      {required CryptoCurrency from,
+      required CryptoCurrency to,
+      required bool isFixedRateMode}) async {
+    final params = <String, String>{
+      'api_key': apiKey,
+      'ticker': from.title.toLowerCase(),
+      'name': from.name,
+    };
+
+    final uri = await _getUri(coinPath, params);
+
+    final response = await get(uri);
+
+    if (response.statusCode != 200) {
+      throw Exception('Unexpected http status: ${response.statusCode}');
+    }
+
+    final responseJSON = json.decode(response.body) as List<dynamic>;
+
+    if (responseJSON.isEmpty) {
+      throw Exception('No data');
+    }
+
+    final coinJson = responseJSON.first as Map<String, dynamic>;
+
+    return Limits(
+      min: coinJson['minimum'] as double,
+      max: coinJson['maximum'] as double,
+    );
+  }
+
+  @override
+  Future<double> fetchRate(
+      {required CryptoCurrency from,
+      required CryptoCurrency to,
+      required double amount,
+      required bool isFixedRateMode,
+      required bool isReceiveAmount}) async {
+    try {
+      if (amount == 0) {
+        return 0.0;
+      }
+
+      final params = <String, String>{
+        'api_key': apiKey,
+        'ticker_from': from.title.toLowerCase(),
+        'ticker_to': to.title.toLowerCase(),
+        'network_from': _networkFor(from),
+        'network_to': _networkFor(to),
+        if (!isFixedRateMode) 'amount_from': amount.toString(),
+        if (isFixedRateMode) 'amount_to': amount.toString(),
+        'payment': isFixedRateMode ? 'True' : 'False',
+        'min_kycrating': 'C',
+        'markup': markup,
+        'best_only': 'True',
+      };
+
+      final uri = await _getUri(newRatePath, params);
+      final response = await get(uri);
+      final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+      final fromAmount = double.parse(responseJSON['amount_from'].toString());
+      final toAmount = double.parse(responseJSON['amount_to'].toString());
+      final rateId = responseJSON['trade_id'] as String? ?? '';
+
+      if (rateId.isNotEmpty) {
+        _lastUsedRateId = rateId;
+      }
+
+      return isReceiveAmount ? (amount / fromAmount) : (toAmount / amount);
+    } catch (e) {
+      print(e.toString());
+      return 0.0;
+    }
+  }
+
+  @override
+  Future<Trade> findTradeById({required String id}) async {
+    final uri = await _getUri(tradePath, {'api_key': apiKey, 'id': id});
+    return get(uri).then((response) {
+      if (response.statusCode != 200) {
+        throw Exception('Unexpected http status: ${response.statusCode}');
+      }
+
+      final responseListJson = json.decode(response.body) as List;
+
+      final responseJSON = responseListJson.first;
+      final id = responseJSON['trade_id'] as String;
+      final inputAddress = responseJSON['address_user'] as String;
+      final refundAddress = responseJSON['refund_address'] as String;
+      final payoutAddress = responseJSON['address_provider'] as String;
+      final fromAmount = responseJSON['amount_from']?.toString() ?? '0';
+      final from = CryptoCurrency.fromString(responseJSON['ticker_from'] as String);
+      final to = CryptoCurrency.fromString(responseJSON['ticker_to'] as String);
+      final state = TradeState.deserialize(raw: responseJSON['status'] as String);
+      final date = DateTime.parse(responseJSON['date'] as String);
+      final password = responseJSON['password'] as String;
+      final providerId = responseJSON['id_provider'] as String;
+      final providerName = responseJSON['provider'] as String;
+
+      return Trade(
+        id: id,
+        from: from,
+        to: to,
+        provider: description,
+        inputAddress: inputAddress,
+        refundAddress: refundAddress,
+        createdAt: date,
+        amount: fromAmount,
+        state: state,
+        payoutAddress: payoutAddress,
+        password: password,
+        providerId: providerId,
+        providerName: providerName,
+      );
+    });
+  }
+
+  @override
+  bool get isAvailable => true;
+
+  @override
+  bool get isEnabled => true;
+
+  @override
+  bool get supportsFixedRate => true;
+
+  @override
+  bool get supportsOnionAddress => true;
+
+  @override
+  String get title => 'Trocador';
+
+  String _networkFor(CryptoCurrency currency) {
+    switch (currency) {
+      case CryptoCurrency.eth:
+        return 'ERC20';
+      case CryptoCurrency.maticpoly:
+        return 'Mainnet';
+      case CryptoCurrency.usdcpoly:
+        return 'MATIC';
+      case CryptoCurrency.zec:
+        return 'Mainnet';
+      default:
+        return currency.tag != null ? _normalizeTag(currency.tag!) : 'Mainnet';
+    }
+  }
+
+  String _normalizeTag(String tag) {
+    switch (tag) {
+      case 'ETH':
+        return 'ERC20';
+      case 'TRX':
+        return 'TRC20';
+      default:
+        return tag.toLowerCase();
+    }
+  }
+
+  Future<Uri> _getUri(String path, Map<String, String> queryParams) async {
+    if (!supportsOnionAddress) {
+      return Uri.https(clearNetAuthority, path, queryParams);
+    }
+
+    final uri = Uri.http(onionApiAuthority, path, queryParams);
+
+    if (useTorOnly) {
+      return uri;
+    }
+
+    try {
+      await get(uri);
+
+      return uri;
+    } catch (e) {
+      return Uri.https(clearNetAuthority, path, queryParams);
+    }
+  }
+}
--- a/lib/exchange/trocador/trocador_request.dart
+++ b/lib/exchange/trocador/trocador_request.dart
@ -0,0 +1,21 @@
+import 'package:cake_wallet/exchange/trade_request.dart';
+import 'package:cw_core/crypto_currency.dart';
+
+class TrocadorRequest extends TradeRequest {
+  TrocadorRequest(
+      {required this.from,
+      required this.to,
+      required this.address,
+      required this.fromAmount,
+      required this.toAmount,
+      required this.refundAddress,
+      required this.isReverse});
+
+  CryptoCurrency from;
+  CryptoCurrency to;
+  String address;
+  String fromAmount;
+  String toAmount;
+  String refundAddress;
+  bool isReverse;
+}
--- a/lib/src/screens/dashboard/widgets/trade_row.dart
+++ b/lib/src/screens/dashboard/widgets/trade_row.dart
@ -9,7 +9,8 @@ class TradeRow extends StatelessWidget {
    required this.to,
    required this.createdAtFormattedDate,
    this.onTap,
-    this.formattedAmount,});
+    this.formattedAmount,
+  });

  final VoidCallback? onTap;
  final ExchangeProviderDescription provider;
@ -35,47 +36,40 @@ class TradeRow extends StatelessWidget {
              SizedBox(width: 12),
              Expanded(
                  child: Column(
-                    mainAxisSize: MainAxisSize.min,
-                    children: [
-                      Row(
-                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                          children: <Widget>[
-                            Text('${from.toString()} → ${to.toString()}',
-                                style: TextStyle(
-                                    fontSize: 16,
-                                    fontWeight: FontWeight.w500,
-                                    color: Theme.of(context).accentTextTheme!.headline2!.backgroundColor!
-                                )),
-                            formattedAmount != null
-                                ? Text(formattedAmount! + ' ' + amountCrypto,
-                                style: TextStyle(
-                                    fontSize: 16,
-                                    fontWeight: FontWeight.w500,
-                                    color: Theme.of(context).accentTextTheme!.headline2!.backgroundColor!
-                                ))
-                                : Container()
-                          ]),
-                      SizedBox(height: 5),
-                      Row(
-                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                          children: <Widget>[
-                            if (createdAtFormattedDate != null)
-                              Text(createdAtFormattedDate!,
-                                  style: TextStyle(
-                                      fontSize: 14,
-                                      color: Theme.of(context).textTheme!
-                                          .overline!.backgroundColor!))
-                          ])
-                    ],
-                  )
-              )
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Row(mainAxisAlignment: MainAxisAlignment.spaceBetween, children: <Widget>[
+                    Text('${from.toString()} → ${to.toString()}',
+                        style: TextStyle(
+                            fontSize: 16,
+                            fontWeight: FontWeight.w500,
+                            color: Theme.of(context).accentTextTheme!.headline2!.backgroundColor!)),
+                    formattedAmount != null
+                        ? Text(formattedAmount! + ' ' + amountCrypto,
+                            style: TextStyle(
+                                fontSize: 16,
+                                fontWeight: FontWeight.w500,
+                                color:
+                                    Theme.of(context).accentTextTheme!.headline2!.backgroundColor!))
+                        : Container()
+                  ]),
+                  SizedBox(height: 5),
+                  Row(mainAxisAlignment: MainAxisAlignment.spaceBetween, children: <Widget>[
+                    if (createdAtFormattedDate != null)
+                      Text(createdAtFormattedDate!,
+                          style: TextStyle(
+                              fontSize: 14,
+                              color: Theme.of(context).textTheme!.overline!.backgroundColor!))
+                  ])
+                ],
+              ))
            ],
          ),
        ));
  }

-  Image? _getPoweredImage(ExchangeProviderDescription provider) {
-    Image? image;
+  Widget? _getPoweredImage(ExchangeProviderDescription provider) {
+    Widget? image;

    switch (provider) {
      case ExchangeProviderDescription.xmrto:
@ -93,10 +87,15 @@ class TradeRow extends StatelessWidget {
      case ExchangeProviderDescription.simpleSwap:
        image = Image.asset('assets/images/simpleSwap.png', width: 36, height: 36);
        break;
+      case ExchangeProviderDescription.trocador:
+        image = ClipRRect(
+            borderRadius: BorderRadius.circular(50),
+            child: Image.asset('assets/images/trocador.png', width: 36, height: 36));
+        break;
      default:
        image = null;
    }

    return image;
  }
-}
+}
--- a/lib/src/screens/new_wallet/advanced_privacy_settings_page.dart
+++ b/lib/src/screens/new_wallet/advanced_privacy_settings_page.dart
@ -1,7 +1,11 @@
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
+import 'package:cake_wallet/entities/fiat_api_mode.dart';
 import 'package:cake_wallet/src/screens/nodes/widgets/node_form.dart';
+import 'package:cake_wallet/src/screens/settings/widgets/settings_choices_cell.dart';
 import 'package:cake_wallet/src/screens/settings/widgets/settings_switcher_cell.dart';
 import 'package:cake_wallet/view_model/node_list/node_create_or_edit_view_model.dart';
 import 'package:cake_wallet/view_model/advanced_privacy_settings_view_model.dart';
+import 'package:cake_wallet/view_model/settings/choices_list_item.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:flutter/material.dart';
 import 'package:cake_wallet/generated/i18n.dart';
@ -48,29 +52,51 @@ class _AdvancedPrivacySettingsBodyState extends State<AdvancedPrivacySettingsBod
        content: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
-            ...widget.privacySettingsViewModel.settings.map(
-              (item) => Observer(
-                builder: (_) => SettingsSwitcherCell(
-                  title: item.title,
-                  value: item.value(),
-                  onValueChange: item.onValueChange,
-                ),
-              ),
+            Observer(
+              builder: (_) {
+                return SettingsSwitcherCell(
+                  title: S.current.disable_fiat,
+                  value: widget.privacySettingsViewModel.fiatApi == FiatApiMode.disabled,
+                  onValueChange: (BuildContext context, bool value) {
+                    widget.privacySettingsViewModel.setFiatMode(value);
+                  });
+              }
            ),
            Observer(
              builder: (_) {
-                if (widget.privacySettingsViewModel.addCustomNode) {
-                  return Padding(
-                    padding: EdgeInsets.only(left: 24, right: 24, top: 24),
-                    child: NodeForm(
-                      formKey: _formKey,
-                      nodeViewModel: widget.nodeViewModel,
-                    ),
-                  );
-                }
-                return const SizedBox();
-              },
+                return SettingsChoicesCell(
+                  ChoicesListItem<ExchangeApiMode>(
+                    title: S.current.exchange,
+                    items: ExchangeApiMode.all,
+                    selectedItem: widget.privacySettingsViewModel.exchangeStatus,
+                    onItemSelected: (ExchangeApiMode mode) =>
+                        widget.privacySettingsViewModel.setExchangeApiMode(mode),
+                  ),
+                );
+              }
            ),
+            Observer(
+              builder: (_) {
+                return Column(
+                  children: [
+                    SettingsSwitcherCell(
+                      title: S.current.add_custom_node,
+                      value: widget.privacySettingsViewModel.addCustomNode,
+                      onValueChange: (_, __) => widget.privacySettingsViewModel.toggleAddCustomNode(),
+                    ),
+                    if (widget.privacySettingsViewModel.addCustomNode)
+                    Padding(
+                      padding: EdgeInsets.only(left: 24, right: 24, top: 24),
+                      child: NodeForm(
+                        formKey: _formKey,
+                        nodeViewModel: widget.nodeViewModel,
+                      ),
+                    )
+                  ],
+                );
+              }
+            ),
+            
          ],
        ),
        bottomSectionPadding: EdgeInsets.all(24),
--- a/lib/src/screens/settings/privacy_page.dart
+++ b/lib/src/screens/settings/privacy_page.dart
@ -1,6 +1,10 @@
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
+import 'package:cake_wallet/entities/fiat_api_mode.dart';
 import 'package:cake_wallet/generated/i18n.dart';
 import 'package:cake_wallet/src/screens/base_page.dart';
+import 'package:cake_wallet/src/screens/settings/widgets/settings_choices_cell.dart';
 import 'package:cake_wallet/src/screens/settings/widgets/settings_switcher_cell.dart';
+import 'package:cake_wallet/view_model/settings/choices_list_item.dart';
 import 'package:cake_wallet/view_model/settings/privacy_settings_view_model.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
@ -27,12 +31,14 @@ class PrivacyPage extends BasePage {
                onValueChange: (BuildContext context, bool value) {
                  _privacySettingsViewModel.setFiatMode(value);
                }),
-              SettingsSwitcherCell(
-                  title: S.current.disable_exchange,
-                  value: _privacySettingsViewModel.disableExchange,
-                  onValueChange: (BuildContext context, bool value) {
-                    _privacySettingsViewModel.setEnableExchange(value);
-                  }),
+              SettingsChoicesCell(
+                ChoicesListItem<ExchangeApiMode>(
+                  title: S.current.exchange,
+                  items: ExchangeApiMode.all,
+                  selectedItem: _privacySettingsViewModel.exchangeStatus,
+                  onItemSelected: (ExchangeApiMode mode) => _privacySettingsViewModel.setExchangeApiMode(mode),
+                ),
+              ),
              SettingsSwitcherCell(
                  title: S.current.settings_save_recipient_address,
                  value: _privacySettingsViewModel.shouldSaveRecipientAddress,
--- a/lib/src/widgets/check_box_picker.dart
+++ b/lib/src/widgets/check_box_picker.dart
@ -38,7 +38,7 @@ class CheckBoxPickerState extends State<CheckBoxPicker> {
          Column(
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
-              if (widget.title?.isNotEmpty ?? false)
+              if (widget.title.isNotEmpty)
                Container(
                  padding: EdgeInsets.symmetric(horizontal: 24),
                  child: Text(
@ -58,7 +58,7 @@ class CheckBoxPickerState extends State<CheckBoxPicker> {
                child: ClipRRect(
                  borderRadius: BorderRadius.all(Radius.circular(30)),
                  child: Container(
-                    color: Theme.of(context).accentTextTheme!.headline6!.color!,
+                    color: Theme.of(context).accentTextTheme.headline6!.color!,
                    child: ConstrainedBox(
                      constraints: BoxConstraints(
                        maxHeight: MediaQuery.of(context).size.height * 0.65,
@ -70,7 +70,7 @@ class CheckBoxPickerState extends State<CheckBoxPicker> {
                            child: Stack(
                              alignment: Alignment.center,
                              children: <Widget>[
-                                (items?.length ?? 0) > 3
+                                (items.length) > 3
                                    ? Scrollbar(
                                        controller: controller,
                                        child: itemsList(),
@ -95,14 +95,14 @@ class CheckBoxPickerState extends State<CheckBoxPicker> {

  Widget itemsList() {
    return Container(
-      color: Theme.of(context).accentTextTheme!.headline6!.backgroundColor!,
+      color: Theme.of(context).accentTextTheme.headline6!.backgroundColor!,
      child: ListView.separated(
        padding: EdgeInsets.zero,
        controller: controller,
        shrinkWrap: true,
        separatorBuilder: (context, index) => widget.isSeparated
            ? Divider(
-                color: Theme.of(context).accentTextTheme!.headline6!.backgroundColor!,
+                color: Theme.of(context).accentTextTheme.headline6!.backgroundColor!,
                height: 1,
              )
            : const SizedBox(),
@ -121,13 +121,13 @@ class CheckBoxPickerState extends State<CheckBoxPicker> {
      },
      child: Container(
        height: 55,
-        color: Theme.of(context).accentTextTheme!.headline6!.color!,
+        color: Theme.of(context).accentTextTheme.headline6!.color!,
        padding: EdgeInsets.only(left: 24, right: 24),
        child: CheckboxListTile(
          value: item.value,
          activeColor: item.value
              ? Palette.blueCraiola
-              : Theme.of(context).accentTextTheme!.subtitle1!.decorationColor!,
+              : Theme.of(context).accentTextTheme.subtitle1!.decorationColor!,
          checkColor: Colors.white,
          title: widget.displayItem?.call(item) ??
              Text(
@ -138,7 +138,7 @@ class CheckBoxPickerState extends State<CheckBoxPicker> {
                  fontWeight: FontWeight.w600,
                  color: item.isDisabled
                      ? Colors.grey.withOpacity(0.5)
-                      : Theme.of(context).primaryTextTheme!.headline6!.color!,
+                      : Theme.of(context).primaryTextTheme.headline6!.color!,
                  decoration: TextDecoration.none,
                ),
              ),
--- a/lib/store/dashboard/trade_filter_store.dart
+++ b/lib/store/dashboard/trade_filter_store.dart
@ -12,7 +12,8 @@ abstract class TradeFilterStoreBase with Store {
        displayChangeNow = true,
        displaySideShift = true,
        displayMorphToken = true,
-        displaySimpleSwap = true;
+        displaySimpleSwap = true,
+        displayTrocador = true;

  @observable
  bool displayXMRTO;
@ -29,8 +30,11 @@ abstract class TradeFilterStoreBase with Store {
  @observable
  bool displaySimpleSwap;

+  @observable
+  bool displayTrocador;
+
  @computed
-  bool get displayAllTrades => displayChangeNow && displaySideShift && displaySimpleSwap;
+  bool get displayAllTrades => displayChangeNow && displaySideShift && displaySimpleSwap && displayTrocador;

  @action
  void toggleDisplayExchange(ExchangeProviderDescription provider) {
@ -50,6 +54,9 @@ abstract class TradeFilterStoreBase with Store {
      case ExchangeProviderDescription.morphToken:
        displayMorphToken = !displayMorphToken;
        break;
+      case ExchangeProviderDescription.trocador:
+        displayTrocador = !displayTrocador;
+        break; 
      case ExchangeProviderDescription.all:
        if (displayAllTrades) {
          displayChangeNow = false;
@ -57,12 +64,14 @@ abstract class TradeFilterStoreBase with Store {
          displayXMRTO = false;
          displayMorphToken = false;
          displaySimpleSwap = false;
+          displayTrocador = false;
        } else {
          displayChangeNow = true;
          displaySideShift = true;
          displayXMRTO = true;
          displayMorphToken = true;
          displaySimpleSwap = true;
+          displayTrocador = true;
        }
        break;
    }
@ -88,7 +97,8 @@ abstract class TradeFilterStoreBase with Store {
                ExchangeProviderDescription.morphToken)
        ||(displaySimpleSwap &&
            item.trade.provider ==
-                ExchangeProviderDescription.simpleSwap))
+                ExchangeProviderDescription.simpleSwap)
+        ||(displayTrocador && item.trade.provider == ExchangeProviderDescription.trocador))
        .toList()
        : _trades;
  }
--- a/lib/store/settings_store.dart
+++ b/lib/store/settings_store.dart
@ -1,4 +1,5 @@
 import 'package:cake_wallet/bitcoin/bitcoin.dart';
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cake_wallet/entities/pin_code_required_duration.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cw_core/transaction_priority.dart';
@ -31,7 +32,7 @@ abstract class SettingsStoreBase with Store {
      required bool initialSaveRecipientAddress,
      required FiatApiMode initialFiatMode,
      required bool initialAllowBiometricalAuthentication,
-      required bool initialExchangeEnabled,
+      required ExchangeApiMode initialExchangeStatus,
      required ThemeBase initialTheme,
      required int initialPinLength,
      required String initialLanguageCode,
@ -53,7 +54,7 @@ abstract class SettingsStoreBase with Store {
    shouldSaveRecipientAddress = initialSaveRecipientAddress,
    fiatApiMode = initialFiatMode,
    allowBiometricalAuthentication = initialAllowBiometricalAuthentication,
-    disableExchange = initialExchangeEnabled,
+    exchangeStatus = initialExchangeStatus,
    currentTheme = initialTheme,
    pinCodeLength = initialPinLength,
    languageCode = initialLanguageCode,
@ -153,9 +154,9 @@ abstract class SettingsStoreBase with Store {
            PreferencesKey.currentBalanceDisplayModeKey, mode.serialize()));

    reaction(
-            (_) => disableExchange,
-            (bool disableExchange) => sharedPreferences.setBool(
-            PreferencesKey.disableExchangeKey, disableExchange));
+            (_) => exchangeStatus,
+            (ExchangeApiMode mode) => sharedPreferences.setInt(
+            PreferencesKey.exchangeStatusKey, mode.serialize()));

    this
        .nodes
@ -192,7 +193,7 @@ abstract class SettingsStoreBase with Store {
  bool allowBiometricalAuthentication;

  @observable
-  bool disableExchange;
+  ExchangeApiMode exchangeStatus;

  @observable
  ThemeBase currentTheme;
@ -284,8 +285,9 @@ abstract class SettingsStoreBase with Store {
    final allowBiometricalAuthentication = sharedPreferences
            .getBool(PreferencesKey.allowBiometricalAuthenticationKey) ??
        false;
-    final disableExchange = sharedPreferences
-            .getBool(PreferencesKey.disableExchangeKey) ?? false;
+    final exchangeStatus = ExchangeApiMode.deserialize(
+        raw: sharedPreferences
+            .getInt(PreferencesKey.exchangeStatusKey) ?? ExchangeApiMode.enabled.raw);
    final legacyTheme =
        (sharedPreferences.getBool(PreferencesKey.isDarkThemeLegacy) ?? false)
            ? ThemeType.dark.index
@ -354,7 +356,7 @@ abstract class SettingsStoreBase with Store {
        initialSaveRecipientAddress: shouldSaveRecipientAddress,
        initialFiatMode: currentFiatApiMode,
        initialAllowBiometricalAuthentication: allowBiometricalAuthentication,
-        initialExchangeEnabled: disableExchange,
+        initialExchangeStatus: exchangeStatus,
        initialTheme: savedTheme,
        actionlistDisplayMode: actionListDisplayMode,
        initialPinLength: pinLength,
@ -400,7 +402,9 @@ abstract class SettingsStoreBase with Store {
    allowBiometricalAuthentication = sharedPreferences
        .getBool(PreferencesKey.allowBiometricalAuthenticationKey) ??
        allowBiometricalAuthentication;
-    disableExchange = sharedPreferences.getBool(PreferencesKey.disableExchangeKey) ?? disableExchange;
+    exchangeStatus = ExchangeApiMode.deserialize(
+        raw: sharedPreferences
+            .getInt(PreferencesKey.exchangeStatusKey) ?? ExchangeApiMode.enabled.raw);
    final legacyTheme =
        (sharedPreferences.getBool(PreferencesKey.isDarkThemeLegacy) ?? false)
            ? ThemeType.dark.index
--- a/lib/view_model/advanced_privacy_settings_view_model.dart
+++ b/lib/view_model/advanced_privacy_settings_view_model.dart
@ -1,9 +1,8 @@
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cake_wallet/entities/fiat_api_mode.dart';
 import 'package:cake_wallet/store/settings_store.dart';
-import 'package:cake_wallet/view_model/settings/switcher_list_item.dart';
 import 'package:cw_core/wallet_type.dart';
 import 'package:mobx/mobx.dart';
-import 'package:cake_wallet/generated/i18n.dart';

 part 'advanced_privacy_settings_view_model.g.dart';

@ -11,35 +10,19 @@ class AdvancedPrivacySettingsViewModel = AdvancedPrivacySettingsViewModelBase
    with _$AdvancedPrivacySettingsViewModel;

 abstract class AdvancedPrivacySettingsViewModelBase with Store {
-  AdvancedPrivacySettingsViewModelBase(this.type, this._settingsStore)
-      : _addCustomNode = false {
-    settings = [
-      SwitcherListItem(
-        title: S.current.disable_fiat,
-        value: () => _settingsStore.fiatApiMode == FiatApiMode.disabled,
-        onValueChange: (_, bool value) => setFiatMode(value),
-      ),
-      SwitcherListItem(
-        title: S.current.disable_exchange,
-        value: () => _settingsStore.disableExchange,
-        onValueChange: (_, bool value) {
-          _settingsStore.disableExchange = value;
-        },
-      ),
-      SwitcherListItem(
-        title: S.current.add_custom_node,
-        value: () => _addCustomNode,
-        onValueChange: (_, bool value) => _addCustomNode = value,
-      ),
-    ];
-  }
+  AdvancedPrivacySettingsViewModelBase(this.type, this._settingsStore) : _addCustomNode = false;

-  late List<SwitcherListItem> settings;
+  @computed
+  ExchangeApiMode get exchangeStatus => _settingsStore.exchangeStatus;
+
+  @computed
+  FiatApiMode get fiatApi => _settingsStore.fiatApiMode;

  @observable
  bool _addCustomNode = false;

  final WalletType type;
+
  final SettingsStore _settingsStore;

  @computed
@ -53,4 +36,14 @@ abstract class AdvancedPrivacySettingsViewModelBase with Store {
    }
    _settingsStore.fiatApiMode = FiatApiMode.enabled;
  }
+
+  @action
+  void setExchangeApiMode(ExchangeApiMode value) {
+    _settingsStore.exchangeStatus = value;
+  }
+
+  @action
+  void toggleAddCustomNode() {
+    _addCustomNode = !_addCustomNode;
+  }
 }
--- a/lib/view_model/dashboard/dashboard_view_model.dart
+++ b/lib/view_model/dashboard/dashboard_view_model.dart
@ -1,3 +1,5 @@
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
+import 'package:cake_wallet/entities/fiat_api_mode.dart';
 import 'package:cake_wallet/wallet_type_utils.dart';
 import 'package:cw_core/transaction_history.dart';
 import 'package:cw_core/balance.dart';
@ -96,6 +98,11 @@ abstract class DashboardViewModelBase with Store {
            caption: ExchangeProviderDescription.simpleSwap.title,
            onChanged: () => tradeFilterStore
                .toggleDisplayExchange(ExchangeProviderDescription.simpleSwap)),
+        FilterItem(
+            value: () => tradeFilterStore.displayTrocador,
+            caption: ExchangeProviderDescription.trocador.title,
+            onChanged: () => tradeFilterStore
+                .toggleDisplayExchange(ExchangeProviderDescription.trocador)),
      ]
    },
    subname = '',
@ -268,7 +275,7 @@ abstract class DashboardViewModelBase with Store {
      settingsStore.shouldShowYatPopup = shouldShow;

  @computed
-  bool get isEnabledExchangeAction => !settingsStore.disableExchange;
+  bool get isEnabledExchangeAction => settingsStore.exchangeStatus != ExchangeApiMode.disabled;

  @observable
  bool hasExchangeAction;
--- a/lib/view_model/exchange/exchange_trade_view_model.dart
+++ b/lib/view_model/exchange/exchange_trade_view_model.dart
@ -1,6 +1,7 @@
 import 'dart:async';
 import 'package:cake_wallet/exchange/sideshift/sideshift_exchange_provider.dart';
 import 'package:cake_wallet/exchange/simpleswap/simpleswap_exchange_provider.dart';
+import 'package:cake_wallet/exchange/trocador/trocador_exchange_provider.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cake_wallet/exchange/changenow/changenow_exchange_provider.dart';
@ -46,6 +47,9 @@ abstract class ExchangeTradeViewModelBase with Store {
      case ExchangeProviderDescription.simpleSwap:
        _provider = SimpleSwapExchangeProvider();
        break;
+        case ExchangeProviderDescription.trocador:
+        _provider = TrocadorExchangeProvider();
+        break;
    }

    _updateItems();
--- a/lib/view_model/exchange/exchange_view_model.dart
+++ b/lib/view_model/exchange/exchange_view_model.dart
@ -2,11 +2,15 @@ import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';

+import 'package:cake_wallet/entities/exchange_api_mode.dart';
+import 'package:cake_wallet/entities/fiat_api_mode.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
 import 'package:cake_wallet/exchange/sideshift/sideshift_exchange_provider.dart';
 import 'package:cake_wallet/exchange/sideshift/sideshift_request.dart';
 import 'package:cake_wallet/exchange/simpleswap/simpleswap_exchange_provider.dart';
 import 'package:cake_wallet/exchange/simpleswap/simpleswap_request.dart';
+import 'package:cake_wallet/exchange/trocador/trocador_exchange_provider.dart';
+import 'package:cake_wallet/exchange/trocador/trocador_request.dart';
 import 'package:cw_core/transaction_priority.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:cw_core/crypto_currency.dart';
@ -53,6 +57,7 @@ abstract class ExchangeViewModelBase with Store {
      isDepositAddressEnabled = false,
      isReceiveAddressEnabled = false,
      isReceiveAmountEditable = false,
+      _useTorOnly = false,
      receiveCurrencies = <CryptoCurrency>[],
      depositCurrencies = <CryptoCurrency>[],
      limits = Limits(min: 0, max: 0),
@ -60,8 +65,10 @@ abstract class ExchangeViewModelBase with Store {
      limitsState = LimitsInitialState(),
      receiveCurrency = wallet.currency,
      depositCurrency = wallet.currency,
-      providerList = [ChangeNowExchangeProvider(), SideShiftExchangeProvider(), SimpleSwapExchangeProvider()],
+      providerList = [],
      selectedProviders = ObservableList<ExchangeProvider>() {
+    _useTorOnly = _settingsStore.exchangeStatus == ExchangeApiMode.torOnly;
+    _setProviders();
    const excludeDepositCurrencies = [CryptoCurrency.btt, CryptoCurrency.nano];
    const excludeReceiveCurrencies = [CryptoCurrency.xlm, CryptoCurrency.xrp,
      CryptoCurrency.bnb, CryptoCurrency.btt, CryptoCurrency.nano];
@ -117,13 +124,20 @@ abstract class ExchangeViewModelBase with Store {
        _calculateBestRate();
      });
  }
-
+  bool _useTorOnly;
  final WalletBase wallet;
  final Box<Trade> trades;
  final ExchangeTemplateStore _exchangeTemplateStore;
  final TradesStore tradesStore;
  final SharedPreferences sharedPreferences;

+  List<ExchangeProvider> get _allProviders => [
+        ChangeNowExchangeProvider(),
+        SideShiftExchangeProvider(),
+        SimpleSwapExchangeProvider(),
+        TrocadorExchangeProvider(useTorOnly: _useTorOnly),
+      ];
+
  @observable
  ExchangeProvider? provider;

@ -455,6 +469,18 @@ abstract class ExchangeViewModelBase with Store {
          amount = isFixedRateMode ? receiveAmount : depositAmount;
        }

+        if (provider is TrocadorExchangeProvider) {
+          request = TrocadorRequest(
+              from: depositCurrency,
+              to: receiveCurrency,
+              fromAmount: depositAmount.replaceAll(',', '.'),
+              toAmount: receiveAmount.replaceAll(',', '.'),
+              refundAddress: depositAddress,
+              address: receiveAddress,
+              isReverse: isFixedRateMode);
+          amount = isFixedRateMode ? receiveAmount : depositAmount;
+        }
+
        amount = amount.replaceAll(',', '.');

        if (limitsState is LimitsLoadedSuccessfully) {
@ -675,4 +701,12 @@ abstract class ExchangeViewModelBase with Store {
        break;
    }
  }
+
+  void _setProviders(){
+    if (_settingsStore.exchangeStatus == ExchangeApiMode.torOnly) {
+      providerList = _allProviders.where((provider) => provider.supportsOnionAddress).toList();
+    } else {
+      providerList = _allProviders;
+    }
+  }
 }
--- a/lib/view_model/settings/privacy_settings_view_model.dart
+++ b/lib/view_model/settings/privacy_settings_view_model.dart
@ -1,3 +1,4 @@
+import 'package:cake_wallet/entities/exchange_api_mode.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cake_wallet/entities/fiat_api_mode.dart';
@ -12,7 +13,7 @@ abstract class PrivacySettingsViewModelBase with Store {
  final SettingsStore _settingsStore;

  @computed
-  bool get disableExchange => _settingsStore.disableExchange;
+  ExchangeApiMode get exchangeStatus => _settingsStore.exchangeStatus;

  @computed
  bool get shouldSaveRecipientAddress => _settingsStore.shouldSaveRecipientAddress;
@ -24,7 +25,7 @@ abstract class PrivacySettingsViewModelBase with Store {
  void setShouldSaveRecipientAddress(bool value) => _settingsStore.shouldSaveRecipientAddress = value;

  @action
-  void setEnableExchange(bool value) => _settingsStore.disableExchange = value;
+  void setExchangeApiMode(ExchangeApiMode value) => _settingsStore.exchangeStatus = value;

  @action
  void setFiatMode(bool value) {
--- a/lib/view_model/trade_details_view_model.dart
+++ b/lib/view_model/trade_details_view_model.dart
@ -6,6 +6,7 @@ import 'package:cake_wallet/exchange/morphtoken/morphtoken_exchange_provider.dar
 import 'package:cake_wallet/exchange/sideshift/sideshift_exchange_provider.dart';
 import 'package:cake_wallet/exchange/simpleswap/simpleswap_exchange_provider.dart';
 import 'package:cake_wallet/exchange/trade.dart';
+import 'package:cake_wallet/exchange/trocador/trocador_exchange_provider.dart';
 import 'package:cake_wallet/exchange/xmrto/xmrto_exchange_provider.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cake_wallet/utils/date_formatter.dart';
@ -22,16 +23,15 @@ import 'package:cake_wallet/src/screens/trade_details/trade_details_status_item.
 import 'package:url_launcher/url_launcher.dart';
 part 'trade_details_view_model.g.dart';

-class TradeDetailsViewModel = TradeDetailsViewModelBase
-    with _$TradeDetailsViewModel;
+class TradeDetailsViewModel = TradeDetailsViewModelBase with _$TradeDetailsViewModel;

 abstract class TradeDetailsViewModelBase with Store {
  TradeDetailsViewModelBase({
    required Trade tradeForDetails,
    required this.trades,
-    required this.settingsStore})
-  : items = ObservableList<StandartListItem>(),
-    trade = tradeForDetails {
+    required this.settingsStore,
+  })  : items = ObservableList<StandartListItem>(),
+        trade = tradeForDetails {
    switch (trade.provider) {
      case ExchangeProviderDescription.xmrto:
        _provider = XMRTOExchangeProvider();
@ -45,9 +45,12 @@ abstract class TradeDetailsViewModelBase with Store {
      case ExchangeProviderDescription.sideShift:
        _provider = SideShiftExchangeProvider();
        break;
-      case  ExchangeProviderDescription.simpleSwap:
+      case ExchangeProviderDescription.simpleSwap:
        _provider = SimpleSwapExchangeProvider();
        break;
+      case ExchangeProviderDescription.trocador:
+        _provider = TrocadorExchangeProvider();
+        break;
    }

    items = ObservableList<StandartListItem>();
@ -96,12 +99,7 @@ abstract class TradeDetailsViewModelBase with Store {
    items.clear();

    items.add(
-        DetailsListStatusItem(
-          title: S.current.trade_details_state,
-          value: trade.state != null
-              ? trade.state.toString()
-              : S.current.trade_details_fetching)
-    );
+        DetailsListStatusItem(title: S.current.trade_details_state, value: trade.state.toString()));

    items.add(TradeDetailsListCardItem.tradeDetails(
      id: trade.id,
@ -114,15 +112,11 @@ abstract class TradeDetailsViewModelBase with Store {
      },
    ));

-    if (trade.provider != null) {
-      items.add(StandartListItem(
-          title: S.current.trade_details_provider,
-          value: trade.provider.toString()));
-    }
+    items.add(StandartListItem(
+        title: S.current.trade_details_provider, value: trade.provider.toString()));

    if (trade.provider == ExchangeProviderDescription.changeNow) {
-      final buildURL =
-          'https://changenow.io/exchange/txs/${trade.id.toString()}';
+      final buildURL = 'https://changenow.io/exchange/txs/${trade.id.toString()}';
      items.add(TrackTradeListItem(
          title: 'Track',
          value: buildURL,
@ -133,14 +127,25 @@ abstract class TradeDetailsViewModelBase with Store {

    if (trade.provider == ExchangeProviderDescription.sideShift) {
      final buildURL = 'https://sideshift.ai/orders/${trade.id.toString()}';
-      items.add(TrackTradeListItem(
-          title: 'Track', value: buildURL, onTap: () => launch(buildURL)));
+      items.add(TrackTradeListItem(title: 'Track', value: buildURL, onTap: () => launch(buildURL)));
    }

    if (trade.provider == ExchangeProviderDescription.simpleSwap) {
      final buildURL = 'https://simpleswap.io/exchange?id=${trade.id.toString()}';
-      items.add(TrackTradeListItem(
-          title: 'Track', value: buildURL, onTap: () => launch(buildURL)));
+      items.add(TrackTradeListItem(title: 'Track', value: buildURL, onTap: () => launch(buildURL)));
+    }
+
+    if (trade.provider == ExchangeProviderDescription.trocador) {
+      final buildURL = 'https://trocador.app/en/checkout/${trade.id.toString()}';
+      items.add(TrackTradeListItem(title: 'Track', value: buildURL, onTap: () => launch(buildURL)));
+
+      items.add(StandartListItem(
+          title: '${trade.providerName} ${S.current.id.toUpperCase()}',
+          value: trade.providerId ?? ''));
+
+      if (trade.password != null && trade.password!.isNotEmpty)
+        items.add(StandartListItem(
+            title: '${trade.providerName} ${S.current.password}', value: trade.password ?? ''));
    }
  }
 }
--- a/tool/utils/secret_key.dart
+++ b/tool/utils/secret_key.dart
@ -6,17 +6,12 @@ class SecretKey {

  static final base = [
    SecretKey('salt', () => hex.encode(encrypt.Key.fromSecureRandom(16).bytes)),
-    SecretKey('keychainSalt',
-        () => hex.encode(encrypt.Key.fromSecureRandom(12).bytes)),
+    SecretKey('keychainSalt', () => hex.encode(encrypt.Key.fromSecureRandom(12).bytes)),
    SecretKey('key', () => hex.encode(encrypt.Key.fromSecureRandom(16).bytes)),
-    SecretKey(
-        'walletSalt', () => hex.encode(encrypt.Key.fromSecureRandom(4).bytes)),
-    SecretKey(
-        'shortKey', () => hex.encode(encrypt.Key.fromSecureRandom(12).bytes)),
-    SecretKey(
-        'backupSalt', () => hex.encode(encrypt.Key.fromSecureRandom(8).bytes)),
-    SecretKey('backupKeychainSalt',
-        () => hex.encode(encrypt.Key.fromSecureRandom(12).bytes)),
+    SecretKey('walletSalt', () => hex.encode(encrypt.Key.fromSecureRandom(4).bytes)),
+    SecretKey('shortKey', () => hex.encode(encrypt.Key.fromSecureRandom(12).bytes)),
+    SecretKey('backupSalt', () => hex.encode(encrypt.Key.fromSecureRandom(8).bytes)),
+    SecretKey('backupKeychainSalt', () => hex.encode(encrypt.Key.fromSecureRandom(12).bytes)),
    SecretKey('changeNowApiKey', () => ''),
    SecretKey('wyreSecretKey', () => ''),
    SecretKey('wyreApiKey', () => ''),
@ -29,6 +24,8 @@ class SecretKey {
    SecretKey('anypayToken', () => ''),
    SecretKey('onramperApiKey', () => ''),
    SecretKey('ioniaClientId', () => ''),
+    SecretKey('trocadorApiKey', () => ''),
+    SecretKey('trocadorExchangeMarkup', () => ''),
    SecretKey('twitterBearerToken', () => ''),
  ];