Cw 613 quantex (#1377)

* save progress

* [skip ci]

* forgot to add [skip ci]

* not sure what exactly I changed but it just works now! ¯\_(ツ)_/¯

* status updates

* minor cleanup

* minor fix (toUppercase needed)

* remove unnecessary apikey + keep original raw values

* fix track url for quantex

* only increment raw values

---------

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

.github/workflows/pr_test_build.yml

@@ -151,6 +151,7 @@ jobs:
           echo "const moralisApiKey = '${{ secrets.MORALIS_API_KEY }}';" >> lib/.secrets.g.dart
           echo "const polygonScanApiKey = '${{ secrets.POLYGON_SCAN_API_KEY }}';" >> cw_evm/lib/.secrets.g.dart
           echo "const ankrApiKey = '${{ secrets.ANKR_API_KEY }}';" >> cw_solana/lib/.secrets.g.dart
+          echo "const quantexExchangeMarkup = '${{ secrets.QUANTEX_EXCHANGE_MARKUP }}';" >> lib/.secrets.g.dart
           echo "const nano2ApiKey = '${{ secrets.NANO2_API_KEY }}';" >> cw_nano/lib/.secrets.g.dart
           echo "const tronGridApiKey = '${{ secrets.TRON_GRID_API_KEY }}';" >> cw_tron/lib/.secrets.g.dart
 

lib/exchange/exchange_provider_description.dart

@@ -22,10 +22,11 @@ class ExchangeProviderDescription extends EnumerableItem<int> with Serializable<
       ExchangeProviderDescription(title: 'Trocador', raw: 5, image: 'assets/images/trocador.png');
   static const exolix =
       ExchangeProviderDescription(title: 'Exolix', raw: 6, image: 'assets/images/exolix.png');
-  static const thorChain =
-  ExchangeProviderDescription(title: 'ThorChain' , raw: 8, image: 'assets/images/thorchain.png');
-
   static const all = ExchangeProviderDescription(title: 'All trades', raw: 7, image: '');
+  static const thorChain =
+      ExchangeProviderDescription(title: 'ThorChain', raw: 8, image: 'assets/images/thorchain.png');
+  static const quantex =
+      ExchangeProviderDescription(title: 'Quantex', raw: 9, image: 'assets/images/quantex.png');
 
   static ExchangeProviderDescription deserialize({required int raw}) {
     switch (raw) {
@@ -43,10 +44,12 @@ class ExchangeProviderDescription extends EnumerableItem<int> with Serializable<
         return trocador;
       case 6:
         return exolix;
-      case 8:
-        return thorChain;
       case 7:
         return all;
+      case 8:
+        return thorChain;
+      case 9:
+        return quantex;
       default:
         throw Exception('Unexpected token: $raw for ExchangeProviderDescription deserialize');
     }

lib/exchange/provider/quantex_exchange_provider.dart

@@ -0,0 +1,252 @@
+import 'dart:convert';
+
+import 'package:cake_wallet/.secrets.g.dart' as secrets;
+import 'package:cake_wallet/exchange/exchange_provider_description.dart';
+import 'package:cake_wallet/exchange/limits.dart';
+import 'package:cake_wallet/exchange/provider/exchange_provider.dart';
+import 'package:cake_wallet/exchange/trade.dart';
+import 'package:cake_wallet/exchange/trade_not_created_exception.dart';
+import 'package:cake_wallet/exchange/trade_not_found_exception.dart';
+import 'package:cake_wallet/exchange/trade_request.dart';
+import 'package:cake_wallet/exchange/trade_state.dart';
+import 'package:cake_wallet/exchange/utils/currency_pairs_utils.dart';
+import 'package:cw_core/crypto_currency.dart';
+import 'package:http/http.dart';
+
+class QuantexExchangeProvider extends ExchangeProvider {
+  QuantexExchangeProvider() : super(pairList: supportedPairs(_notSupported));
+
+  static final List<CryptoCurrency> _notSupported = [
+    ...(CryptoCurrency.all
+        .where((element) => ![
+              CryptoCurrency.btc,
+              CryptoCurrency.sol,
+              CryptoCurrency.eth,
+              CryptoCurrency.ltc,
+              CryptoCurrency.ada,
+              CryptoCurrency.bch,
+              CryptoCurrency.usdt,
+              CryptoCurrency.bnb,
+              CryptoCurrency.xmr,
+            ].contains(element))
+        .toList())
+  ];
+
+  static final markup = secrets.quantexExchangeMarkup;
+
+  static const apiAuthority = 'api.myquantex.com';
+  static const getRate = '/api/swap/get-rate';
+  static const getCoins = '/api/swap/get-coins';
+  static const createOrder = '/api/swap/create-order';
+
+  @override
+  String get title => 'Quantex';
+
+  @override
+  bool get isAvailable => true;
+
+  @override
+  bool get isEnabled => true;
+
+  @override
+  bool get supportsFixedRate => false;
+
+  @override
+  ExchangeProviderDescription get description => ExchangeProviderDescription.quantex;
+
+  @override
+  Future<bool> checkIsAvailable() async => true;
+
+  @override
+  Future<Limits> fetchLimits({
+    required CryptoCurrency from,
+    required CryptoCurrency to,
+    required bool isFixedRateMode,
+  }) async {
+    try {
+      final uri = Uri.https(apiAuthority, getCoins);
+      final response = await get(uri);
+
+      final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+
+      if (response.statusCode != 200)
+        throw Exception('Unexpected http status: ${response.statusCode}');
+
+      final coinsInfo = responseJSON['data'] as List<dynamic>;
+
+      for (var coin in coinsInfo) {
+        if (coin['id'].toString().toUpperCase() == _normalizeCurrency(from)) {
+          return Limits(
+            min: double.parse(coin['min'].toString()),
+            max: double.parse(coin['max'].toString()),
+          );
+        }
+      }
+
+      // coin not found:
+      return Limits(min: 0, max: 0);
+    } catch (e) {
+      print(e.toString());
+      return Limits(min: 0, max: 0);
+    }
+  }
+
+  @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 headers = <String, String>{};
+      final params = <String, dynamic>{};
+      final body = <String, String>{
+        'coin_send': _normalizeCurrency(from),
+        'coin_receive': _normalizeCurrency(to),
+        'ref': 'cake',
+      };
+
+      final uri = Uri.https(apiAuthority, getRate, params);
+      final response = await post(uri, body: body, headers: headers);
+      final responseBody = json.decode(response.body) as Map<String, dynamic>;
+
+      if (response.statusCode != 200)
+        throw Exception('Unexpected http status: ${response.statusCode}');
+
+      final data = responseBody['data'] as Map<String, dynamic>;
+      double rate = double.parse(data['price'].toString());
+      return rate;
+    } catch (e) {
+      print("error fetching rate: ${e.toString()}");
+      return 0.0;
+    }
+  }
+
+  @override
+  Future<Trade> createTrade({
+    required TradeRequest request,
+    required bool isFixedRateMode,
+    required bool isSendAll,
+  }) async {
+    try {
+      final headers = <String, String>{};
+      final params = <String, dynamic>{};
+      var body = <String, dynamic>{
+        'coin_send': _normalizeCurrency(request.fromCurrency),
+        'coin_receive': _normalizeCurrency(request.toCurrency),
+        'amount_send': request.fromAmount,
+        'recipient': request.toAddress,
+        'ref': 'cake',
+        'markup': markup,
+      };
+
+      String? fromNetwork = _networkFor(request.fromCurrency);
+      String? toNetwork = _networkFor(request.toCurrency);
+      if (fromNetwork != null) body['coin_send_network'] = fromNetwork;
+      if (toNetwork != null) body['coin_receive_network'] = toNetwork;
+
+      final uri = Uri.https(apiAuthority, createOrder, params);
+      final response = await post(uri, body: body, headers: headers);
+      final responseBody = json.decode(response.body) as Map<String, dynamic>;
+
+      if (response.statusCode == 400 || responseBody["success"] == false) {
+        final error = responseBody['errors'][0]['msg'] as String;
+        throw TradeNotCreatedException(description, description: error);
+      }
+
+      if (response.statusCode != 200)
+        throw Exception('Unexpected http status: ${response.statusCode}');
+
+      final responseData = responseBody['data'] as Map<String, dynamic>;
+
+      return Trade(
+        id: responseData["order_id"] as String,
+        inputAddress: responseData["server_address"] as String,
+        amount: request.fromAmount,
+        from: request.fromCurrency,
+        to: request.toCurrency,
+        provider: description,
+        createdAt: DateTime.now(),
+        state: TradeState.created,
+        payoutAddress: request.toAddress,
+        isSendAll: isSendAll,
+      );
+    } catch (e) {
+      print("error creating trade: ${e.toString()}");
+      throw TradeNotCreatedException(description, description: e.toString());
+    }
+  }
+
+  @override
+  Future<Trade> findTradeById({required String id}) async {
+    try {
+      final headers = <String, String>{};
+      final params = <String, dynamic>{};
+      var body = <String, dynamic>{
+        'order_id': id,
+      };
+
+      final uri = Uri.https(apiAuthority, createOrder, params);
+      final response = await post(uri, body: body, headers: headers);
+      final responseBody = json.decode(response.body) as Map<String, dynamic>;
+
+      if (response.statusCode == 400 || responseBody["success"] == false) {
+        final error = responseBody['errors'][0]['msg'] as String;
+        throw TradeNotCreatedException(description, description: error);
+      }
+
+      if (response.statusCode != 200)
+        throw Exception('Unexpected http status: ${response.statusCode}');
+
+      final responseData = responseBody['data'] as Map<String, dynamic>;
+      final fromCurrency = responseData['coin_send'] as String;
+      final from = CryptoCurrency.fromString(fromCurrency);
+      final toCurrency = responseData['coin_receive'] as String;
+      final to = CryptoCurrency.fromString(toCurrency);
+      final inputAddress = responseData['server_address'] as String;
+      final status = responseData['status'] as String;
+      final state = TradeState.deserialize(raw: status);
+      final response_id = responseData['order_id'] as String;
+      final expectedSendAmount = responseData['amount_send'] as String;
+
+      return Trade(
+        id: response_id,
+        from: from,
+        to: to,
+        provider: description,
+        inputAddress: inputAddress,
+        amount: expectedSendAmount,
+        state: state,
+      );
+    } catch (e) {
+      print("error getting trade: ${e.toString()}");
+      throw TradeNotFoundException(
+        id,
+        provider: description,
+        description: e.toString(),
+      );
+    }
+  }
+
+  String _normalizeCurrency(CryptoCurrency currency) {
+    switch (currency) {
+      default:
+        return currency.title.toUpperCase();
+    }
+  }
+
+  String? _networkFor(CryptoCurrency currency) {
+    switch (currency) {
+      case CryptoCurrency.usdt:
+        return "USDT_ERC20";
+      case CryptoCurrency.bnb:
+        return "BNB_BSC";
+      default:
+        return null;
+    }
+  }
+}

lib/exchange/trade_state.dart

@@ -28,6 +28,7 @@ class TradeState extends EnumerableItem<String> with Serializable<String> {
       TradeState(raw: 'waitingAuthorization', title: 'Waiting authorization');
   static const failed = TradeState(raw: 'failed', title: 'Failed');
   static const completed = TradeState(raw: 'completed', title: 'Completed');
+  static const expired = TradeState(raw: 'expired', title: 'Expired');
   static const settling = TradeState(raw: 'settling', title: 'Settlement in progress');
   static const settled = TradeState(raw: 'settled', title: 'Settlement completed');
   static const wait = TradeState(raw: 'wait', title: 'Waiting');
@@ -39,7 +40,33 @@ class TradeState extends EnumerableItem<String> with Serializable<String> {
   static const exchanging = TradeState(raw: 'exchanging', title: 'Exchanging');
   static const sending = TradeState(raw: 'sending', title: 'Sending');
   static const success = TradeState(raw: 'success', title: 'Success');
+  
   static TradeState deserialize({required String raw}) {
+
+    switch (raw) {
+      case '1':
+        return unpaid;
+      case '2':
+        return paidUnconfirmed;
+      case '3':
+        return sending;
+      case '4':
+        return confirmed;
+      case '5':
+      case '6':
+        return exchanging;
+      case '7':
+        return sending;
+      case '8':
+        return complete;
+      case '9':
+        return expired;
+      case '10':
+        return underpaid;
+      case '11':
+        return failed;
+    }
+
     switch (raw) {
       case 'NOT_FOUND':
         return notFound;

lib/view_model/exchange/exchange_trade_view_model.dart

@@ -4,6 +4,7 @@ import 'package:cake_wallet/exchange/exchange_provider_description.dart';
 import 'package:cake_wallet/exchange/provider/changenow_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/exolix_exchange_provider.dart';
+import 'package:cake_wallet/exchange/provider/quantex_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/sideshift_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/simpleswap_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/thorchain_exchange.provider.dart';
@@ -48,6 +49,9 @@ abstract class ExchangeTradeViewModelBase with Store {
       case ExchangeProviderDescription.exolix:
         _provider = ExolixExchangeProvider();
         break;
+      case ExchangeProviderDescription.quantex:
+        _provider = QuantexExchangeProvider();
+        break;
       case ExchangeProviderDescription.thorChain:
         _provider = ThorChainExchangeProvider(tradesStore: trades);
         break;

lib/view_model/exchange/exchange_view_model.dart

@@ -30,6 +30,7 @@ import 'package:cake_wallet/exchange/limits_state.dart';
 import 'package:cake_wallet/exchange/provider/changenow_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/exolix_exchange_provider.dart';
+import 'package:cake_wallet/exchange/provider/quantex_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/sideshift_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/simpleswap_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/thorchain_exchange.provider.dart';
@@ -157,6 +158,7 @@ abstract class ExchangeViewModelBase extends WalletChangeListenerViewModel with
             useTorOnly: _useTorOnly, providerStates: _settingsStore.trocadorProviderStates),
         ThorChainExchangeProvider(tradesStore: trades),
         if (FeatureFlag.isExolixEnabled) ExolixExchangeProvider(),
+        QuantexExchangeProvider(),
       ];
 
   @observable

lib/view_model/trade_details_view_model.dart

@@ -4,6 +4,7 @@ import 'package:cake_wallet/exchange/exchange_provider_description.dart';
 import 'package:cake_wallet/exchange/provider/changenow_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/exolix_exchange_provider.dart';
+import 'package:cake_wallet/exchange/provider/quantex_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/sideshift_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/simpleswap_exchange_provider.dart';
 import 'package:cake_wallet/exchange/provider/thorchain_exchange.provider.dart';
@@ -56,6 +57,9 @@ abstract class TradeDetailsViewModelBase with Store {
       case ExchangeProviderDescription.thorChain:
         _provider = ThorChainExchangeProvider(tradesStore: trades);
         break;
+      case ExchangeProviderDescription.quantex:
+        _provider = QuantexExchangeProvider();
+        break;
     }
 
     _updateItems();
@@ -80,6 +84,8 @@ abstract class TradeDetailsViewModelBase with Store {
         return 'https://exolix.com/transaction/${trade.id}';
       case ExchangeProviderDescription.thorChain:
         return 'https://track.ninerealms.com/${trade.id}';
+      case ExchangeProviderDescription.quantex:
+        return 'https://myquantex.com/send/${trade.id}';
     }
     return null;
   }

tool/utils/secret_key.dart

@@ -38,6 +38,7 @@ class SecretKey {
     SecretKey('walletConnectProjectId', () => ''),
     SecretKey('moralisApiKey', () => ''),
     SecretKey('ankrApiKey', () => ''),
+    SecretKey('quantexExchangeMarkup', () => ''),
   ];
 
   static final evmChainsSecrets = [