Add use orbot/invizible checkbox to tor settings screen

diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 29e6cc1..0404d1f 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -170,6 +170,7 @@
   "torSettingsModeDisabled": "No Tor",
   "torSettingsSocksPortLabel": "SOCKS Port",
   "torSettingsSocksPortHint": "e.g. 9050",
+  "torSettingsUseOrbotLabel": "Use Orbot/InviZible",
   "torSettingsSaveButton": "Save",
   "torSettingsTestConnectionButton": "Test Connection",
   "settingsTorSettingsLabel": "Tor Settings",
@@ -181,5 +182,6 @@
         "type": "String"
       }
     }
-  }
+  },
+  "connectionSetupTorDisabledError": "Tor is disabled. Please go back and enable it."
 }
diff --git a/lib/l10n/app_localizations.dart b/lib/l10n/app_localizations.dart
index 50ac05d..6d19609 100644
--- a/lib/l10n/app_localizations.dart
+++ b/lib/l10n/app_localizations.dart
@@ -1071,6 +1071,12 @@ abstract class AppLocalizations {
   /// **'e.g. 9050'**
   String get torSettingsSocksPortHint;
 
+  /// No description provided for @torSettingsUseOrbotLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Use Orbot/InviZible'**
+  String get torSettingsUseOrbotLabel;
+
   /// No description provided for @torSettingsSaveButton.
   ///
   /// In en, this message translates to:
@@ -1100,6 +1106,12 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Using external Tor proxy at {address}'**
   String connectionSetupUsingExternalTor(String address);
+
+  /// No description provided for @connectionSetupTorDisabledError.
+  ///
+  /// In en, this message translates to:
+  /// **'Tor is disabled. Please go back and enable it.'**
+  String get connectionSetupTorDisabledError;
 }
 
 class _AppLocalizationsDelegate extends LocalizationsDelegate<AppLocalizations> {
diff --git a/lib/l10n/app_localizations_en.dart b/lib/l10n/app_localizations_en.dart
index 9704bc0..5da4ab0 100644
--- a/lib/l10n/app_localizations_en.dart
+++ b/lib/l10n/app_localizations_en.dart
@@ -517,6 +517,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get torSettingsSocksPortHint => 'e.g. 9050';
 
+  @override
+  String get torSettingsUseOrbotLabel => 'Use Orbot/InviZible';
+
   @override
   String get torSettingsSaveButton => 'Save';
 
@@ -533,4 +536,7 @@ class AppLocalizationsEn extends AppLocalizations {
   String connectionSetupUsingExternalTor(String address) {
     return 'Using external Tor proxy at $address';
   }
+
+  @override
+  String get connectionSetupTorDisabledError => 'Tor is disabled. Please go back and enable it.';
 }
diff --git a/lib/l10n/app_localizations_pt.dart b/lib/l10n/app_localizations_pt.dart
index e7f315d..f85a412 100644
--- a/lib/l10n/app_localizations_pt.dart
+++ b/lib/l10n/app_localizations_pt.dart
@@ -517,6 +517,9 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get torSettingsSocksPortHint => 'ex: 9050';
 
+  @override
+  String get torSettingsUseOrbotLabel => 'Usar Orbot/InviZible';
+
   @override
   String get torSettingsSaveButton => 'Salvar';
 
@@ -533,4 +536,8 @@ class AppLocalizationsPt extends AppLocalizations {
   String connectionSetupUsingExternalTor(String address) {
     return 'Usando proxy Tor externo em $address';
   }
+
+  @override
+  String get connectionSetupTorDisabledError =>
+      'O Tor está desativado. Por favor, volte e ative-o.';
 }
diff --git a/lib/l10n/app_pt.arb b/lib/l10n/app_pt.arb
index 47a2df0..39605dc 100644
--- a/lib/l10n/app_pt.arb
+++ b/lib/l10n/app_pt.arb
@@ -170,6 +170,7 @@
   "torSettingsModeDisabled": "Sem Tor",
   "torSettingsSocksPortLabel": "Porta SOCKS",
   "torSettingsSocksPortHint": "ex: 9050",
+  "torSettingsUseOrbotLabel": "Usar Orbot/InviZible",
   "torSettingsSaveButton": "Salvar",
   "torSettingsTestConnectionButton": "Testar Conexão",
   "settingsTorSettingsLabel": "Configurações do Tor",
@@ -181,5 +182,6 @@
         "type": "String"
       }
     }
-  }
+  },
+  "connectionSetupTorDisabledError": "O Tor está desativado. Por favor, volte e ative-o."
 }
diff --git a/lib/models/wallet_model.dart b/lib/models/wallet_model.dart
index d67ff5f..fcbfbcb 100644
--- a/lib/models/wallet_model.dart
+++ b/lib/models/wallet_model.dart
@@ -13,7 +13,6 @@ import 'package:monero/src/wallet2.dart';
 import 'package:http/http.dart' as http;
 import 'package:polyseed/polyseed.dart';
 import 'package:bip39/bip39.dart' as bip39;
-import 'package:skylight_wallet/models/fiat_rate_model.dart';
 
 import 'package:skylight_wallet/services/notifications_service.dart';
 import 'package:skylight_wallet/services/shared_preferences_service.dart';
@@ -23,7 +22,6 @@ import 'package:skylight_wallet/util/bip39.dart';
 import 'package:skylight_wallet/util/cacert.dart';
 import 'package:skylight_wallet/util/formatting.dart';
 import 'package:skylight_wallet/util/get_height_by_date.dart';
-import 'package:skylight_wallet/util/height.dart';
 import 'package:skylight_wallet/util/logging.dart';
 import 'package:skylight_wallet/util/socks_http.dart';
 import 'package:skylight_wallet/util/wallet.dart';
diff --git a/lib/screens/connection_setup.dart b/lib/screens/connection_setup.dart
index d150625..7021470 100644
--- a/lib/screens/connection_setup.dart
+++ b/lib/screens/connection_setup.dart
@@ -155,6 +155,7 @@ class _ConnectionSetupScreenState extends State<ConnectionSetupScreen> {
   }
 
   Future _testConnection() async {
+    final i18n = AppLocalizations.of(context)!;
     final proto = _useSsl ? 'https' : 'http';
     final daemonAddress = cleanAddress(_addressController.text);
     final customProxyPort = _customProxyPortController.text;
@@ -192,7 +193,7 @@ class _ConnectionSetupScreenState extends State<ConnectionSetupScreen> {
           // show error toast
           ScaffoldMessenger.of(
             context,
-          ).showSnackBar(SnackBar(content: Text("Tor is disabled. Please go back and enable it.")));
+          ).showSnackBar(SnackBar(content: Text(i18n.connectionSetupTorDisabledError)));
           return;
         }
 
diff --git a/lib/services/shared_preferences_service.dart b/lib/services/shared_preferences_service.dart
index ec2f65f..7241f13 100644
--- a/lib/services/shared_preferences_service.dart
+++ b/lib/services/shared_preferences_service.dart
@@ -21,6 +21,7 @@ class SharedPreferencesKeys {
   static const String unusedSubaddressIndexIsSupported = 'unusedSubaddressIndexIsSupported';
   static const String torMode = 'torMode';
   static const String torSocksPort = 'torSocksPort';
+  static const String torUseOrbot = 'torUseOrbot';
 }
 
 class SharedPreferencesService {
diff --git a/lib/services/tor_settings_service.dart b/lib/services/tor_settings_service.dart
index 135d1bd..6d51c20 100644
--- a/lib/services/tor_settings_service.dart
+++ b/lib/services/tor_settings_service.dart
@@ -9,10 +9,12 @@ class TorSettingsService {
   static final TorSettingsService sharedInstance = TorSettingsService._();
 
   TorMode _torMode = TorMode.builtIn;
-  String _socksPort = '9150';
+  String _socksPort = '9050';
+  bool _useOrbot = false;
 
   TorMode get torMode => _torMode;
   String get socksPort => _socksPort;
+  bool get useOrbot => _useOrbot;
 
   TorSettingsService._();
 
@@ -23,6 +25,9 @@ class TorSettingsService {
     final String? socksPortString = await SharedPreferencesService.get<String>(
       SharedPreferencesKeys.torSocksPort,
     );
+    final bool? useOrbotValue = await SharedPreferencesService.get<bool>(
+      SharedPreferencesKeys.torUseOrbot,
+    );
 
     if (torModeString != null) {
       _torMode = _torModeFromString(torModeString);
@@ -31,9 +36,13 @@ class TorSettingsService {
     if (socksPortString != null) {
       _socksPort = socksPortString;
     }
+
+    if (useOrbotValue != null) {
+      _useOrbot = useOrbotValue;
+    }
   }
 
-  Future<void> save({required TorMode torMode, String? socksPort}) async {
+  Future<void> save({required TorMode torMode, String? socksPort, bool? useOrbot}) async {
     _torMode = torMode;
     await SharedPreferencesService.set<String>(
       SharedPreferencesKeys.torMode,
@@ -44,6 +53,11 @@ class TorSettingsService {
       _socksPort = socksPort;
       await SharedPreferencesService.set<String>(SharedPreferencesKeys.torSocksPort, socksPort);
     }
+
+    if (useOrbot != null) {
+      _useOrbot = useOrbot;
+      await SharedPreferencesService.set<bool>(SharedPreferencesKeys.torUseOrbot, useOrbot);
+    }
   }
 
   Future<({InternetAddress host, int port})?> getProxy() async {
diff --git a/lib/widgets/tor_settings_form.dart b/lib/widgets/tor_settings_form.dart
index 691605f..4ead5fe 100644
--- a/lib/widgets/tor_settings_form.dart
+++ b/lib/widgets/tor_settings_form.dart
@@ -20,6 +20,7 @@ class TorSettingsForm extends StatefulWidget {
 class _TorSettingsFormState extends State<TorSettingsForm> {
   TorMode _selectedMode = TorMode.builtIn;
   final TextEditingController _socksPortController = TextEditingController();
+  bool _useOrbot = false;
 
   bool _isTestingConnection = false;
   bool _hasTested = false;
@@ -35,13 +36,18 @@ class _TorSettingsFormState extends State<TorSettingsForm> {
     final torSettings = TorSettingsService.sharedInstance;
     setState(() {
       _selectedMode = torSettings.torMode;
-      _socksPortController.text = torSettings.socksPort;
+      _useOrbot = torSettings.useOrbot;
+      _socksPortController.text = _useOrbot ? '9050' : torSettings.socksPort;
     });
   }
 
   Future<void> _saveSettings() async {
     final torSettings = TorSettingsService.sharedInstance;
-    await torSettings.save(torMode: _selectedMode, socksPort: _socksPortController.text);
+    await torSettings.save(
+      torMode: _selectedMode,
+      socksPort: _socksPortController.text,
+      useOrbot: _useOrbot,
+    );
   }
 
   void _onSavePressed() async {
@@ -126,6 +132,7 @@ class _TorSettingsFormState extends State<TorSettingsForm> {
         if (_selectedMode == TorMode.external)
           TextFormField(
             controller: _socksPortController,
+            enabled: !_useOrbot || !(Platform.isAndroid || Platform.isIOS),
             decoration: InputDecoration(
               labelText: i18n.torSettingsSocksPortLabel,
               hintText: i18n.torSettingsSocksPortHint,
@@ -143,6 +150,22 @@ class _TorSettingsFormState extends State<TorSettingsForm> {
               });
             },
           ),
+        if (_selectedMode == TorMode.external && (Platform.isAndroid || Platform.isIOS))
+          CheckboxListTile(
+            title: Text(i18n.torSettingsUseOrbotLabel),
+            value: _useOrbot,
+            onChanged: (value) {
+              setState(() {
+                _useOrbot = value ?? false;
+                if (_useOrbot) {
+                  _socksPortController.text = '9050';
+                }
+                _hasTested = false;
+              });
+            },
+            controlAffinity: ListTileControlAffinity.leading,
+            contentPadding: EdgeInsets.zero,
+          ),
         Row(
           mainAxisAlignment: MainAxisAlignment.center,
           spacing: 10,