CW-941 fiat api

cw_tron/lib/tron_client.dart

@@ -25,6 +25,11 @@ class TronClient {
 
   int get chainId => 1000;
 
+  int retryCount = 0;
+  static const int MAX_RETRIES = 3;
+
+  Future<void> switchNodes() async {}
+
   Future<List<TronTransactionModel>> fetchTransactions(String address,
       {String? contractAddress}) async {
     try {
@@ -50,9 +55,14 @@ class TronClient {
         return (jsonResponse['data'] as List).map((e) {
           return TronTransactionModel.fromJson(e as Map<String, dynamic>);
         }).toList();
+      } else {
+        if (retryCount > MAX_RETRIES) {
+          retryCount++;
+          await switchNodes();
+          return fetchTransactions(address, contractAddress: contractAddress);
+        }
+        return [];
       }
-
-      return [];
     } catch (e, s) {
       log('Error getting tx: ${e.toString()}\n ${s.toString()}');
       return [];
@@ -83,8 +93,13 @@ class TronClient {
         return (jsonResponse['data'] as List).map((e) {
           return TronTRC20TransactionModel.fromJson(e as Map<String, dynamic>);
         }).toList();
+      } else {
+        if (retryCount < MAX_RETRIES) {
+          retryCount++;
+          await switchNodes();
+          return fetchTrc20ExcludedTransactions(address);
+        }
       }
-
       return [];
     } catch (e, s) {
       log('Error getting trc20 tx: ${e.toString()}\n ${s.toString()}');

lib/anonpay/anonpay_api.dart

@@ -6,6 +6,7 @@ import 'package:cake_wallet/anonpay/anonpay_status_response.dart';
 import 'package:cake_wallet/core/fiat_conversion_service.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
 import 'package:cake_wallet/exchange/limits.dart';
+import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cw_core/wallet_base.dart';
 import 'package:http/http.dart';
 import 'package:cw_core/crypto_currency.dart';
@@ -130,13 +131,15 @@ class AnonPayApi {
   Future<Limits> fetchLimits({
     FiatCurrency? fiatCurrency,
     required CryptoCurrency cryptoCurrency,
+    required FiatConversionStore fiatConversionStore,
   }) async {
     double fiatRate = 0.0;
     if (fiatCurrency != null) {
       fiatRate = await FiatConversionService.fetchPrice(
         crypto: cryptoCurrency,
         fiat: fiatCurrency,
         torOnly: useTorOnly,
+        fiatConversionStore: fiatConversionStore,
       );
     }
 

lib/core/fiat_conversion_service.dart

@@ -1,3 +1,4 @@
+import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
 import 'dart:convert';
@@ -22,46 +23,51 @@ Future<double> _fetchPrice(Map<String, dynamic> args) async {
   };
 
   num price = 0.0;
+  late final Uri uri;
+  if (torOnly) {
+    uri = Uri.http(_fiatApiOnionAuthority, _fiatApiPath, queryParams);
+  } else {
+    uri = Uri.https(_fiatApiClearNetAuthority, _fiatApiPath, queryParams);
+  }
 
-  try {
-    late final Uri uri;
-    if (torOnly) {
-      uri = Uri.http(_fiatApiOnionAuthority, _fiatApiPath, queryParams);
-    } else {
-      uri = Uri.https(_fiatApiClearNetAuthority, _fiatApiPath, queryParams);
-    }
-
-    final response = await get(uri);
-
-    if (response.statusCode != 200) {
-      return 0.0;
-    }
+  final response = await get(uri);
 
-    final responseJSON = json.decode(response.body) as Map<String, dynamic>;
-    final results = responseJSON['results'] as Map<String, dynamic>;
+  if (response.statusCode != 200) {
+    throw Exception('Fiat conversion service unavailable: ${response.statusCode}');
+  }
 
-    if (results.isNotEmpty) {
-      price = results.values.first as num;
-    }
+  final responseJSON = json.decode(response.body) as Map<String, dynamic>;
+  final results = responseJSON['results'] as Map<String, dynamic>;
 
-    return price.toDouble();
-  } catch (e) {
-    return price.toDouble();
+  if (results.isNotEmpty) {
+    price = results.values.first as num;
   }
+
+  return price.toDouble();
 }
 
-Future<double> _fetchPriceAsync(CryptoCurrency crypto, FiatCurrency fiat, bool torOnly) async =>
-    compute(_fetchPrice, {
+Future<double> _fetchPriceAsync(CryptoCurrency crypto, FiatCurrency fiat, bool torOnly,
+    FiatConversionStore fiatConversionStore) async {
+  try {
+    final price = await compute(_fetchPrice, {
       'fiat': fiat.toString(),
       'crypto': crypto.toString(),
       'torOnly': torOnly,
     });
+    fiatConversionStore.unavailable = false;
+    return price;
+  } catch (e) {
+    fiatConversionStore.unavailable = true;
+    return 0.0;
+  }
+}
 
 class FiatConversionService {
   static Future<double> fetchPrice({
     required CryptoCurrency crypto,
     required FiatCurrency fiat,
     required bool torOnly,
+    required FiatConversionStore fiatConversionStore,
   }) async =>
-      await _fetchPriceAsync(crypto, fiat, torOnly);
+      await _fetchPriceAsync(crypto, fiat, torOnly, fiatConversionStore);
 }

lib/di.dart

@@ -488,7 +488,7 @@ Future<void> setup({
   getIt.registerFactory(() => BalanceViewModel(
       appStore: getIt.get<AppStore>(),
       settingsStore: getIt.get<SettingsStore>(),
-      fiatConvertationStore: getIt.get<FiatConversionStore>()));
+      fiatConversionStore: getIt.get<FiatConversionStore>()));
 
   getIt.registerFactory(() => DashboardViewModel(
       balanceViewModel: getIt.get<BalanceViewModel>(),
@@ -703,6 +703,7 @@ Future<void> setup({
       _anonpayInvoiceInfoSource,
       getIt.get<SharedPreferences>(),
       pageOption,
+      getIt.get<FiatConversionStore>(),
     );
   });
 

lib/main.dart

@@ -214,7 +214,6 @@ Future<void> initializeAppConfigs({bool loadWallet = true}) async {
     tradesSource: trades,
     ordersSource: orders,
     unspentCoinsInfoSource: unspentCoinsInfoSource,
-    // fiatConvertationService: fiatConvertationService,
     templates: templates,
     exchangeTemplates: exchangeTemplates,
     transactionDescriptions: transactionDescriptions,
@@ -234,7 +233,6 @@ Future<void> initialSetup(
     required Box<Contact> contactSource,
     required Box<Trade> tradesSource,
     required Box<Order> ordersSource,
-    // required FiatConvertationService fiatConvertationService,
     required Box<Template> templates,
     required Box<ExchangeTemplate> exchangeTemplates,
     required Box<TransactionDescription> transactionDescriptions,

lib/reactions/fiat_rate_update.dart

@@ -31,7 +31,8 @@ Future<void> startFiatRateUpdate(
           await FiatConversionService.fetchPrice(
               crypto: appStore.wallet!.currency,
               fiat: settingsStore.fiatCurrency,
-              torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly);
+              torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly,
+              fiatConversionStore: fiatConversionStore);
 
       Iterable<CryptoCurrency>? currencies;
       if (appStore.wallet!.type == WalletType.ethereum) {
@@ -64,7 +65,8 @@ Future<void> startFiatRateUpdate(
             fiatConversionStore.prices[currency] = await FiatConversionService.fetchPrice(
                 crypto: currency,
                 fiat: settingsStore.fiatCurrency,
-                torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly);
+                torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly,
+                fiatConversionStore: fiatConversionStore);
           }.call();
         }
       }

lib/reactions/on_current_fiat_api_mode_change.dart

@@ -20,6 +20,7 @@ void startCurrentFiatApiModeChangeReaction(AppStore appStore,
         await FiatConversionService.fetchPrice(
             crypto: appStore.wallet!.currency,
             fiat: settingsStore.fiatCurrency,
-            torOnly: fiatApiMode == FiatApiMode.torOnly);
+            torOnly: fiatApiMode == FiatApiMode.torOnly,
+            fiatConversionStore: fiatConversionStore);
   });
 }

lib/reactions/on_current_fiat_change.dart

@@ -22,6 +22,7 @@ void startCurrentFiatChangeReaction(AppStore appStore,
         await FiatConversionService.fetchPrice(
             crypto: cryptoCurrency,
             fiat: fiatCurrency,
-            torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly);
+            torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly,
+            fiatConversionStore: fiatConversionStore);
   });
 }

lib/reactions/on_current_wallet_change.dart

@@ -108,7 +108,8 @@ void startCurrentWalletChangeReaction(
       fiatConversionStore.prices[wallet.currency] = await FiatConversionService.fetchPrice(
           crypto: wallet.currency,
           fiat: settingsStore.fiatCurrency,
-          torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly);
+          torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly,
+          fiatConversionStore: fiatConversionStore);
 
       Iterable<CryptoCurrency>? currencies;
       if (wallet.type == WalletType.ethereum) {
@@ -134,7 +135,8 @@ void startCurrentWalletChangeReaction(
             fiatConversionStore.prices[currency] = await FiatConversionService.fetchPrice(
                 crypto: currency,
                 fiat: settingsStore.fiatCurrency,
-                torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly);
+                torOnly: settingsStore.fiatApiMode == FiatApiMode.torOnly,
+                fiatConversionStore: fiatConversionStore);
           }.call();
         }
       }

lib/src/screens/dashboard/pages/balance/crypto_balance_widget.dart

@@ -71,6 +71,7 @@ class CryptoBalanceWidget extends StatelessWidget {
                           child: Observer(
                             builder: (_) {
                               return Row(
+                                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                                 children: [
                                   Text(
                                     dashboardViewModel.balanceViewModel.asset,
@@ -119,6 +120,57 @@ class CryptoBalanceWidget extends StatelessWidget {
                         ),
                       ],
                     )),
+          if (!dashboardViewModel.isFiatConversionServiceAvailable)
+            Row(
+              mainAxisAlignment: MainAxisAlignment.end,
+              children: [
+                InkWell(
+                  onTap: () async {
+                    final learnMorePressed = await showPopUp<bool>(
+                            context: context,
+                            builder: (BuildContext context) {
+                              return AlertWithTwoActions(
+                                  alertTitle: S.of(context).fiat_unavailable,
+                                  alertContent: S.of(context).fiat_unavailable_desc,
+                                  leftButtonText: S.of(context).learn_more,
+                                  rightButtonText: S.of(context).ok,
+                                  actionLeftButton: () => Navigator.of(context).pop(true),
+                                  actionRightButton: () => Navigator.of(context).pop(false));
+                            }) ??
+                        false;
+                    if (learnMorePressed) {
+                      launchUrl(
+                        Uri.parse("https://docs.cakewallet.com/fiat-api-unavailable"),
+                        mode: LaunchMode.externalApplication,
+                      );
+                    }
+                  },
+                  child: Row(
+                    children: [
+                      Text(
+                        S.of(context).fiat_unavailable,
+                        style: TextStyle(
+                          fontSize: 12,
+                          fontFamily: 'Lato',
+                          fontWeight: FontWeight.w400,
+                          color: Theme.of(context).extension<BalancePageTheme>()!.labelTextColor,
+                          height: 1,
+                        ),
+                        softWrap: true,
+                      ),
+                      Padding(
+                        padding: const EdgeInsets.only(left: 4, right: 4, bottom: 16, top: 16),
+                        child: Icon(Icons.help_outline,
+                            size: 16,
+                            color: Theme.of(context).extension<BalancePageTheme>()!.labelTextColor),
+                      ),
+                      SizedBox(width: 16),
+                    ],
+                  ),
+                ),
+                SizedBox(width: 16),
+              ],
+            ),
           Observer(
             builder: (_) {
               if (dashboardViewModel.balanceViewModel.isShowCard && FeatureFlag.isCakePayEnabled) {
@@ -321,7 +373,8 @@ class CryptoBalanceWidget extends StatelessWidget {
                       leftButtonTitle: S.of(context).litecoin_mweb_dismiss,
                       rightButtonTitle: S.of(context).learn_more,
                       leftButtonAction: () => dashboardViewModel.dismissDecredInfoCard(),
-                      rightButtonAction: () => launchUrl(Uri.parse("https://docs.cakewallet.com/cryptos/decred/#spv-sync")),
+                      rightButtonAction: () => launchUrl(
+                          Uri.parse("https://docs.cakewallet.com/cryptos/decred/#spv-sync")),
                     ),
                   ),
                 ],

lib/store/dashboard/fiat_conversion_store.dart

@@ -10,4 +10,7 @@ abstract class FiatConversionStoreBase with Store {
 
   @observable
   ObservableMap<CryptoCurrency, double> prices;
+
+  @observable
+  bool unavailable = false;
 }

lib/view_model/anon_invoice_page_view_model.dart

@@ -4,6 +4,7 @@ import 'package:cake_wallet/anonpay/anonpay_request.dart';
 import 'package:cake_wallet/core/execution_state.dart';
 import 'package:cake_wallet/entities/fiat_currency.dart';
 import 'package:cake_wallet/entities/preferences_key.dart';
+import 'package:cake_wallet/store/dashboard/fiat_conversion_store.dart';
 import 'package:cw_core/receive_page_option.dart';
 import 'package:cake_wallet/store/settings_store.dart';
 import 'package:cw_core/crypto_currency.dart';
@@ -27,6 +28,7 @@ abstract class AnonInvoicePageViewModelBase with Store {
     this._anonpayInvoiceInfoSource,
     this.sharedPreferences,
     this.pageOption,
+    this.fiatConversionStore,
   )   : receipientEmail = '',
         receipientName = '',
         description = '',
@@ -46,6 +48,7 @@ abstract class AnonInvoicePageViewModelBase with Store {
   final Box<AnonpayInvoiceInfo> _anonpayInvoiceInfoSource;
   final SharedPreferences sharedPreferences;
   final ReceivePageOption pageOption;
+  final FiatConversionStore fiatConversionStore;
 
   @observable
   Currency selectedCurrency;
@@ -159,6 +162,7 @@ abstract class AnonInvoicePageViewModelBase with Store {
     final limit = await anonPayApi.fetchLimits(
       cryptoCurrency: cryptoCurrency,
       fiatCurrency: selectedCurrency is FiatCurrency ? selectedCurrency as FiatCurrency : null,
+      fiatConversionStore: fiatConversionStore,
     );
     minimum = limit.min;
     maximum = limit.max != null ? limit.max! / 4 : null;