CW-491-Send-to-Mastodon-username-addresses (#1107)

* Send to Mastodon username addresses

* Update mastodon_user.dart

* Enhance Eth out of gas error condition
Remove some code warnings [skip ci]

---------

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

lib/di.dart

@@ -217,7 +217,6 @@ import 'package:cake_wallet/src/screens/receive/fullscreen_qr_page.dart';
 import 'package:cake_wallet/core/wallet_loading_service.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cake_wallet/entities/qr_view_data.dart';
-import 'package:cake_wallet/nano/nano.dart' as nanoNano;
 
 import 'core/totp_request_details.dart';
 
@@ -644,7 +643,7 @@ Future<void> setup({
       return MoneroAccountListViewModel(wallet);
     }
     throw Exception(
-        'Unexpected wallet type: ${wallet.type} for generate Nano/Monero AccountListViewModel');
+        'Unexpected wallet type: ${wallet.type} for generate Monero AccountListViewModel');
   });
 
   getIt.registerFactory(
@@ -929,7 +928,7 @@ Future<void> setup({
         wallet: wallet!);
   });
 
-  getIt.registerFactoryParam<BuyWebViewPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<BuyWebViewPage, List<dynamic>, void>((List<dynamic> args, _) {
     final url = args.first as String;
     final buyViewModel = args[1] as BuyViewModel;
 
@@ -958,7 +957,7 @@ Future<void> setup({
   getIt.registerFactory(() {
     final wallet = getIt.get<AppStore>().wallet;
 
-    return UnspentCoinsListViewModel(wallet: wallet!, unspentCoinsInfo: _unspentCoinsInfoSource!);
+    return UnspentCoinsListViewModel(wallet: wallet!, unspentCoinsInfo: _unspentCoinsInfoSource);
   });
 
   getIt.registerFactory(() =>
@@ -969,7 +968,7 @@ Future<void> setup({
       (item, model) =>
           UnspentCoinsDetailsViewModel(unspentCoinsItem: item, unspentCoinsListViewModel: model));
 
-  getIt.registerFactoryParam<UnspentCoinsDetailsPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<UnspentCoinsDetailsPage, List<dynamic>, void>((List<dynamic> args, _) {
     final item = args.first as UnspentCoinsItem;
     final unspentCoinsListViewModel = args[1] as UnspentCoinsListViewModel;
 
@@ -1022,7 +1021,7 @@ Future<void> setup({
 
   getIt.registerFactory(() => IoniaLoginPage(getIt.get<IoniaAuthViewModel>()));
 
-  getIt.registerFactoryParam<IoniaVerifyIoniaOtp, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaVerifyIoniaOtp, List<dynamic>, void>((List<dynamic> args, _) {
     final email = args.first as String;
     final isSignIn = args[1] as bool;
 
@@ -1031,13 +1030,14 @@ Future<void> setup({
 
   getIt.registerFactory(() => IoniaWelcomePage());
 
-  getIt.registerFactoryParam<IoniaBuyGiftCardPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaBuyGiftCardPage, List<dynamic>, void>((List<dynamic> args, _) {
     final merchant = args.first as IoniaMerchant;
 
     return IoniaBuyGiftCardPage(getIt.get<IoniaBuyCardViewModel>(param1: merchant));
   });
 
-  getIt.registerFactoryParam<IoniaBuyGiftCardDetailPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaBuyGiftCardDetailPage, List<dynamic>, void>(
+      (List<dynamic> args, _) {
     final amount = args.first as double;
     final merchant = args.last as IoniaMerchant;
     return IoniaBuyGiftCardDetailPage(
@@ -1050,7 +1050,7 @@ Future<void> setup({
         ioniaService: getIt.get<IoniaService>(), giftCard: giftCard);
   });
 
-  getIt.registerFactoryParam<IoniaCustomTipViewModel, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaCustomTipViewModel, List<dynamic>, void>((List<dynamic> args, _) {
     final amount = args[0] as double;
     final merchant = args[1] as IoniaMerchant;
     final tip = args[2] as IoniaTip;
@@ -1063,7 +1063,7 @@ Future<void> setup({
     return IoniaGiftCardDetailPage(getIt.get<IoniaGiftCardDetailsViewModel>(param1: giftCard));
   });
 
-  getIt.registerFactoryParam<IoniaMoreOptionsPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaMoreOptionsPage, List<dynamic>, void>((List<dynamic> args, _) {
     final giftCard = args.first as IoniaGiftCard;
 
     return IoniaMoreOptionsPage(giftCard);
@@ -1073,13 +1073,13 @@ Future<void> setup({
       (IoniaGiftCard giftCard, _) =>
           IoniaCustomRedeemViewModel(giftCard: giftCard, ioniaService: getIt.get<IoniaService>()));
 
-  getIt.registerFactoryParam<IoniaCustomRedeemPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaCustomRedeemPage, List<dynamic>, void>((List<dynamic> args, _) {
     final giftCard = args.first as IoniaGiftCard;
 
     return IoniaCustomRedeemPage(getIt.get<IoniaCustomRedeemViewModel>(param1: giftCard));
   });
 
-  getIt.registerFactoryParam<IoniaCustomTipPage, List, void>((List args, _) {
+  getIt.registerFactoryParam<IoniaCustomTipPage, List<dynamic>, void>((List<dynamic> args, _) {
     return IoniaCustomTipPage(getIt.get<IoniaCustomTipViewModel>(param1: args));
   });
 

lib/entities/parse_address_from_domain.dart

@@ -5,6 +5,7 @@ import 'package:cake_wallet/entities/openalias_record.dart';
 import 'package:cake_wallet/entities/parsed_address.dart';
 import 'package:cake_wallet/entities/unstoppable_domain_address.dart';
 import 'package:cake_wallet/entities/emoji_string_extension.dart';
+import 'package:cake_wallet/mastodon/mastodon_api.dart';
 import 'package:cake_wallet/twitter/twitter_api.dart';
 import 'package:cw_core/crypto_currency.dart';
 import 'package:cw_core/wallet_base.dart';
@@ -73,6 +74,40 @@ class AddressResolver {
           }
         }
       }
+
+      if (text.startsWith('@') && text.contains('@', 1) && text.contains('.', 1)) {
+        final subText = text.substring(1);
+        final hostNameIndex = subText.indexOf('@');
+        final hostName = subText.substring(hostNameIndex + 1);
+        final userName = subText.substring(0, hostNameIndex);
+
+        final mastodonUser =
+        await MastodonAPI.lookupUserByUserName(userName: userName, apiHost: hostName);
+
+        if (mastodonUser != null) {
+          String? addressFromBio =
+          extractAddressByType(raw: mastodonUser.note, type: CryptoCurrency.fromString(ticker));
+
+          if (addressFromBio != null) {
+            return ParsedAddress.fetchMastodonAddress(address: addressFromBio, name: text);
+          } else {
+            final pinnedPosts =
+            await MastodonAPI.getPinnedPosts(userId: mastodonUser.id, apiHost: hostName);
+
+            if (pinnedPosts.isNotEmpty) {
+              final userPinnedPostsText = pinnedPosts.map((item) => item.content).join('\n');
+              String? addressFromPinnedPost = extractAddressByType(
+                  raw: userPinnedPostsText, type: CryptoCurrency.fromString(ticker));
+
+              if (addressFromPinnedPost != null) {
+                return ParsedAddress.fetchMastodonAddress(
+                    address: addressFromPinnedPost, name: text);
+              }
+            }
+          }
+        }
+      }
+
       if (!text.startsWith('@') && text.contains('@') && !text.contains('.')) {
         final bool isFioRegistered = await FioAddressProvider.checkAvail(text);
         if (isFioRegistered) {

lib/entities/parsed_address.dart

@@ -1,7 +1,8 @@
 import 'package:cake_wallet/entities/openalias_record.dart';
 import 'package:cake_wallet/entities/yat_record.dart';
 
-enum ParseFrom { unstoppableDomains, openAlias, yatRecord, fio, notParsed, twitter, ens, contact }
+
+enum ParseFrom { unstoppableDomains, openAlias, yatRecord, fio, notParsed, twitter, ens, contact, mastodon }
 
 class ParsedAddress {
   ParsedAddress({
@@ -69,6 +70,14 @@ class ParsedAddress {
     );
   }
 
+  factory ParsedAddress.fetchMastodonAddress({required String address, required String name}){
+    return ParsedAddress(
+      addresses: [address],
+      name: name,
+      parseFrom: ParseFrom.mastodon
+    );
+  }
+
   factory ParsedAddress.fetchContactAddress({required String address, required String name}){
     return ParsedAddress(
       addresses: [address],

lib/mastodon/mastodon_api.dart

@@ -0,0 +1,63 @@
+import 'dart:convert';
+import 'package:http/http.dart' as http;
+import 'package:cake_wallet/mastodon/mastodon_user.dart';
+
+class MastodonAPI {
+  static const httpsScheme = 'https';
+  static const userPath = '/api/v1/accounts/lookup';
+  static const statusesPath = '/api/v1/accounts/:id/statuses';
+
+  static Future<MastodonUser?> lookupUserByUserName(
+      {required String userName, required String apiHost}) async {
+    try {
+      final queryParams = {'acct': userName};
+
+      final uri = Uri(
+        scheme: httpsScheme,
+        host: apiHost,
+        path: userPath,
+        queryParameters: queryParams,
+      );
+
+      final response = await http.get(uri);
+
+      if (response.statusCode != 200) return null;
+
+      final Map<String, dynamic> responseJSON = json.decode(response.body) as Map<String, dynamic>;
+
+      return MastodonUser.fromJson(responseJSON);
+    } catch (e) {
+      print('Error in lookupUserByUserName: $e');
+      return null;
+    }
+  }
+
+  static Future<List<PinnedPost>> getPinnedPosts({
+    required String userId,
+    required String apiHost,
+  }) async {
+    try {
+      final queryParams = {'pinned': 'true'};
+
+      final uri = Uri(
+        scheme: httpsScheme,
+        host: apiHost,
+        path: statusesPath.replaceAll(':id', userId),
+        queryParameters: queryParams,
+      );
+
+      final response = await http.get(uri);
+
+      if (response.statusCode != 200) {
+        throw Exception('Unexpected HTTP status: ${response.statusCode}');
+      }
+
+      final List<dynamic> responseJSON = json.decode(response.body) as List<dynamic>;
+
+      return responseJSON.map((json) => PinnedPost.fromJson(json as Map<String, dynamic>)).toList();
+    } catch (e) {
+      print('Error in getPinnedPosts: $e');
+      throw e;
+    }
+  }
+}

lib/mastodon/mastodon_user.dart

@@ -0,0 +1,36 @@
+class MastodonUser {
+  String id;
+  String username;
+  String acct;
+  String note;
+
+  MastodonUser({
+    required this.id,
+    required this.username,
+    required this.acct,
+    required this.note,
+  });
+
+  factory MastodonUser.fromJson(Map<String, dynamic> json) {
+    return MastodonUser(
+      id: json['id'] as String,
+      username: json['username'] as String,
+      acct: json['acct'] as String,
+      note: json['note'] as String,
+    );
+  }
+}
+
+class PinnedPost {
+  final String id;
+  final String content;
+
+  PinnedPost({required this.id, required this.content});
+
+  factory PinnedPost.fromJson(Map<String, dynamic> json) {
+    return PinnedPost(
+      id: json['id'] as String,
+      content: json['content'] as String,
+    );
+  }
+}

lib/src/screens/send/widgets/extract_address_from_parsed.dart

@@ -38,6 +38,11 @@ Future<String> extractAddressFromParsed(
       content = S.of(context).extracted_address_content('${parsedAddress.name} (Twitter)');
       address = parsedAddress.addresses.first;
       break;
+    case ParseFrom.mastodon:
+      title = S.of(context).address_detected;
+      content = S.of(context).extracted_address_content('${parsedAddress.name} (Mastodon)');
+      address = parsedAddress.addresses.first;
+      break;
     case ParseFrom.yatRecord:
       if (parsedAddress.name.isEmpty) {
         title = S.of(context).yat_error;

lib/view_model/send/send_view_model.dart

@@ -1,4 +1,3 @@
-import 'package:cake_wallet/di.dart';
 import 'package:cake_wallet/entities/priority_for_wallet_type.dart';
 import 'package:cake_wallet/entities/transaction_description.dart';
 import 'package:cake_wallet/ethereum/ethereum.dart';
@@ -430,7 +429,7 @@ abstract class SendViewModelBase extends WalletChangeListenerViewModel with Stor
 
   String translateErrorMessage(String error, WalletType walletType, CryptoCurrency currency,) {
     if (walletType == WalletType.ethereum || walletType == WalletType.haven) {
-      if (error.contains('gas required exceeds allowance') || error.contains('insufficient funds for gas')) {
+      if (error.contains('gas required exceeds allowance') || error.contains('insufficient funds for')) {
         return S.current.do_not_have_enough_gas_asset(currency.toString());
       }
     }