CW-526-Add-Trocador-providers-option-in-privacy-settings (#1177)

* Trocador settings page UI

* add trocador providers states

* add settings icon

* minor fix

* Revert "minor fix"

This reverts commit e59d9df.

* fixes

* PR fixes

* remove trocador menu icon

lib/di.dart

@@ -45,6 +45,7 @@ import 'package:cake_wallet/src/screens/ionia/cards/ionia_custom_redeem_page.dar
 import 'package:cake_wallet/src/screens/ionia/cards/ionia_gift_card_detail_page.dart';
 import 'package:cake_wallet/src/screens/ionia/cards/ionia_more_options_page.dart';
 import 'package:cake_wallet/src/screens/settings/connection_sync_page.dart';
+import 'package:cake_wallet/src/screens/settings/trocador_providers_page.dart';
 import 'package:cake_wallet/src/screens/setup_2fa/modify_2fa_page.dart';
 import 'package:cake_wallet/src/screens/setup_2fa/setup_2fa_qr_page.dart';
 import 'package:cake_wallet/src/screens/setup_2fa/setup_2fa.dart';
@@ -92,6 +93,7 @@ import 'package:cake_wallet/view_model/settings/other_settings_view_model.dart';
 import 'package:cake_wallet/view_model/settings/privacy_settings_view_model.dart';
 import 'package:cake_wallet/view_model/settings/security_settings_view_model.dart';
 import 'package:cake_wallet/view_model/advanced_privacy_settings_view_model.dart';
+import 'package:cake_wallet/view_model/settings/trocador_providers_view_model.dart';
 import 'package:cake_wallet/view_model/wallet_address_list/wallet_address_list_item.dart';
 import 'package:cake_wallet/view_model/wallet_list/wallet_edit_view_model.dart';
 import 'package:cake_wallet/view_model/wallet_list/wallet_list_item.dart';
@@ -699,6 +701,8 @@ Future<void> setup({
     return PrivacySettingsViewModel(getIt.get<SettingsStore>(), getIt.get<AppStore>().wallet!);
   });
 
+  getIt.registerFactory(() => TrocadorProvidersViewModel(getIt.get<SettingsStore>()));
+
   getIt.registerFactory(() {
     return OtherSettingsViewModel(getIt.get<SettingsStore>(), getIt.get<AppStore>().wallet!);
   });
@@ -752,6 +756,8 @@ Future<void> setup({
 
   getIt.registerFactory(() => PrivacyPage(getIt.get<PrivacySettingsViewModel>()));
 
+  getIt.registerFactory(() => TrocadorProvidersPage(getIt.get<TrocadorProvidersViewModel>()));
+
   getIt.registerFactory(() => DomainLookupsPage(getIt.get<PrivacySettingsViewModel>()));
 
   getIt.registerFactory(() => DisplaySettingsPage(getIt.get<DisplaySettingsViewModel>()));

lib/exchange/provider/trocador_exchange_provider.dart

@@ -12,11 +12,27 @@ import 'package:cw_core/crypto_currency.dart';
 import 'package:http/http.dart';
 
 class TrocadorExchangeProvider extends ExchangeProvider {
-  TrocadorExchangeProvider({this.useTorOnly = false})
-      : _lastUsedRateId = '',
+  TrocadorExchangeProvider({this.useTorOnly = false, this.providerStates = const {}})
+      : _lastUsedRateId = '', _provider = [],
         super(pairList: supportedPairs(_notSupported));
 
   bool useTorOnly;
+  final Map<String, bool> providerStates;
+
+  static const List<String> availableProviders = [
+    'Swapter',
+    'StealthEx',
+    'Simpleswap',
+    'Swapuz'
+    'ChangeNow',
+    'Changehero',
+    'FixedFloat',
+    'LetsExchange',
+    'Exolix',
+    'Godex',
+    'Exch',
+    'CoinCraddle'
+  ];
 
   static const List<CryptoCurrency> _notSupported = [
     CryptoCurrency.stx,
@@ -33,6 +49,7 @@ class TrocadorExchangeProvider extends ExchangeProvider {
   static const coinPath = 'api/coin';
 
   String _lastUsedRateId;
+  List<dynamic> _provider;
 
   @override
   String get title => 'Trocador';
@@ -105,7 +122,6 @@ class TrocadorExchangeProvider extends ExchangeProvider {
         'payment': isFixedRateMode ? 'True' : 'False',
         'min_kycrating': 'C',
         'markup': markup,
-        'best_only': 'True',
       };
 
       final uri = await _getUri(newRatePath, params);
@@ -115,6 +131,9 @@ class TrocadorExchangeProvider extends ExchangeProvider {
       final toAmount = double.parse(responseJSON['amount_to'].toString());
       final rateId = responseJSON['trade_id'] as String? ?? '';
 
+      var quotes = responseJSON['quotes']['quotes'] as List;
+      _provider = quotes.map((quote) => quote['provider']).toList();
+
       if (rateId.isNotEmpty) _lastUsedRateId = rateId;
 
       return isReceiveAmount ? (amount / fromAmount) : (toAmount / amount);
@@ -126,6 +145,7 @@ class TrocadorExchangeProvider extends ExchangeProvider {
 
   @override
   Future<Trade> createTrade({required TradeRequest request, required bool isFixedRateMode}) async {
+
     final params = {
       'api_key': apiKey,
       'ticker_from': _normalizeCurrency(request.fromCurrency),
@@ -135,7 +155,6 @@ class TrocadorExchangeProvider extends ExchangeProvider {
       '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.toAddress,
@@ -153,6 +172,22 @@ class TrocadorExchangeProvider extends ExchangeProvider {
       params['id'] = _lastUsedRateId;
     }
 
+
+    String firstAvailableProvider = '';
+
+    for (var provider in _provider) {
+      if (providerStates.containsKey(provider) && providerStates[provider] == true) {
+        firstAvailableProvider = provider as String;
+        break;
+      }
+    }
+
+    if (firstAvailableProvider.isEmpty) {
+      throw Exception('No available provider is enabled');
+    }
+
+    params['provider'] = firstAvailableProvider;
+
     final uri = await _getUri(createTradePath, params);
     final response = await get(uri);
 

lib/router.dart

@@ -42,6 +42,7 @@ import 'package:cake_wallet/src/screens/restore/restore_from_backup_page.dart';
 import 'package:cake_wallet/src/screens/restore/wallet_restore_page.dart';
 import 'package:cake_wallet/src/screens/seed/pre_seed_page.dart';
 import 'package:cake_wallet/src/screens/settings/connection_sync_page.dart';
+import 'package:cake_wallet/src/screens/settings/trocador_providers_page.dart';
 import 'package:cake_wallet/src/screens/setup_2fa/modify_2fa_page.dart';
 import 'package:cake_wallet/src/screens/setup_2fa/setup_2fa_qr_page.dart';
 import 'package:cake_wallet/src/screens/setup_2fa/setup_2fa.dart';
@@ -323,6 +324,10 @@ Route<dynamic> createRoute(RouteSettings settings) {
       return CupertinoPageRoute<void>(
           fullscreenDialog: true, builder: (_) => getIt.get<PrivacyPage>());
 
+    case Routes.trocadorProvidersPage:
+      return CupertinoPageRoute<void>(
+          fullscreenDialog: true, builder: (_) => getIt.get<TrocadorProvidersPage>());
+
     case Routes.domainLookupsPage:
       return CupertinoPageRoute<void>(
           fullscreenDialog: true, builder: (_) => getIt.get<DomainLookupsPage>());

lib/routes.dart

@@ -81,6 +81,7 @@ class Routes {
   static const connectionSync = '/connection_sync_page';
   static const securityBackupPage = '/security_and_backup_page';
   static const privacyPage = '/privacy_page';
+  static const trocadorProvidersPage = '/trocador_providers_page';
   static const domainLookupsPage = '/domain_lookups_page';
   static const displaySettingsPage = '/display_settings_page';
   static const otherSettingsPage = '/other_settings_page';

lib/src/screens/settings/privacy_page.dart

@@ -90,6 +90,10 @@ class PrivacyPage extends BasePage {
               title: S.current.domain_looks_up,
               handler: (context) => Navigator.of(context).pushNamed(Routes.domainLookupsPage),
             ),
+            SettingsCellWithArrow(
+              title: 'Trocador providers',
+              handler: (context) => Navigator.of(context).pushNamed(Routes.trocadorProvidersPage),
+            ),
           ],
         );
       }),

lib/src/screens/settings/trocador_providers_page.dart

@@ -0,0 +1,37 @@
+import 'package:cake_wallet/exchange/provider/trocador_exchange_provider.dart';
+import 'package:cake_wallet/src/screens/base_page.dart';
+import 'package:cake_wallet/src/screens/settings/widgets/settings_switcher_cell.dart';
+import 'package:cake_wallet/view_model/settings/trocador_providers_view_model.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_mobx/flutter_mobx.dart';
+
+class TrocadorProvidersPage extends BasePage {
+  TrocadorProvidersPage(this.trocadorProvidersViewModel);
+
+  @override
+  String get title => 'Trocador Providers';
+
+  final TrocadorProvidersViewModel trocadorProvidersViewModel;
+
+  @override
+  Widget body(BuildContext context) {
+    final availableProviders = TrocadorExchangeProvider.availableProviders;
+    final providerStates = trocadorProvidersViewModel.providerStates;
+    return Container(
+      padding: EdgeInsets.only(top: 10),
+      child: ListView.builder(
+        itemCount: availableProviders.length,
+        itemBuilder: (_, index) {
+          String provider = availableProviders[index];
+          return Observer(
+              builder: (_) => SettingsSwitcherCell(
+                  title: provider,
+                  value: providerStates[provider] ?? false,
+                  onValueChange: (BuildContext _, bool value) {
+                    trocadorProvidersViewModel.toggleProviderState(provider);
+                  }));
+        },
+      ),
+    );
+  }
+}

lib/store/settings_store.dart

@@ -10,6 +10,7 @@ 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:cake_wallet/entities/sort_balance_types.dart';
+import 'package:cake_wallet/exchange/provider/trocador_exchange_provider.dart';
 import 'package:cake_wallet/view_model/settings/sync_mode.dart';
 import 'package:cake_wallet/utils/device_info.dart';
 import 'package:cake_wallet/ethereum/ethereum.dart';
@@ -161,6 +162,8 @@ abstract class SettingsStoreBase with Store {
       priority[WalletType.bitcoinCash] = initialBitcoinCashTransactionPriority;
     }
 
+    initializeTrocadorProviderStates();
+
     reaction(
         (_) => fiatCurrency,
         (FiatCurrency fiatCurrency) => sharedPreferences.setString(
@@ -515,6 +518,9 @@ abstract class SettingsStoreBase with Store {
   @observable
   ObservableMap<WalletType, TransactionPriority> priority;
 
+  @observable
+  ObservableMap<String, bool> trocadorProviderStates = ObservableMap<String, bool>();
+
   @observable
   SortBalanceBy sortBalanceBy;
 
@@ -1059,6 +1065,19 @@ abstract class SettingsStoreBase with Store {
     powNodes[walletType] = node;
   }
 
+  void initializeTrocadorProviderStates() {
+    for (var provider in TrocadorExchangeProvider.availableProviders) {
+      final savedState = _sharedPreferences.getBool(provider) ?? true;
+      trocadorProviderStates[provider] = savedState;
+    }
+  }
+
+  void saveTrocadorProviderState(String providerName, bool state) {
+    _sharedPreferences.setBool(providerName, state);
+    trocadorProviderStates[providerName] = state;
+  }
+
+
   static Future<String?> _getDeviceName() async {
     String? deviceName = '';
     final deviceInfoPlugin = DeviceInfoPlugin();

lib/view_model/exchange/exchange_view_model.dart

@@ -146,7 +146,8 @@ abstract class ExchangeViewModelBase extends WalletChangeListenerViewModel with
         ChangeNowExchangeProvider(settingsStore: _settingsStore),
         SideShiftExchangeProvider(),
         SimpleSwapExchangeProvider(),
-        TrocadorExchangeProvider(useTorOnly: _useTorOnly),
+        TrocadorExchangeProvider(useTorOnly: _useTorOnly,
+            providerStates: _settingsStore.trocadorProviderStates),
         if (FeatureFlag.isExolixEnabled) ExolixExchangeProvider(),
       ];
 

lib/view_model/settings/trocador_providers_view_model.dart

@@ -0,0 +1,21 @@
+import 'package:cake_wallet/store/settings_store.dart';
+import 'package:mobx/mobx.dart';
+
+part 'trocador_providers_view_model.g.dart';
+
+class TrocadorProvidersViewModel = TrocadorProvidersViewModelBase with _$TrocadorProvidersViewModel;
+
+abstract class TrocadorProvidersViewModelBase with Store {
+  TrocadorProvidersViewModelBase(this._settingsStore);
+
+  final SettingsStore _settingsStore;
+
+  @computed
+  Map<String, bool> get providerStates => _settingsStore.trocadorProviderStates;
+
+  @action
+  void toggleProviderState(String providerName) {
+    final currentState = providerStates[providerName] ?? false;
+    _settingsStore.saveTrocadorProviderState(providerName, !currentState);
+  }
+}