feat: Add functionality to delete all discovered contacts

- Implemented a new method to remove all discovered contacts from the list.
- Added confirmation dialog for deleting all discovered contacts in the discovery screen.
- Updated localization files to include new strings for deleting all discovered contacts.
- Refactored contact import logic to streamline the process.
- Enhanced the discovery handling to notify users appropriately based on settings.

lib/connector/meshcore_connector.dart

@@ -1527,6 +1527,8 @@ class MeshCoreConnector extends ChangeNotifier {
   Future<void> removeContact(Contact contact) async {
     if (!isConnected) return;
 
+    _handleDiscovery(contact, Uint8List(0), noNotify: true);
+
     await sendFrame(buildRemoveContactFrame(contact.publicKey));
     _contacts.removeWhere((c) => c.publicKeyHex == contact.publicKeyHex);
     _knownContactKeys.remove(contact.publicKeyHex);
@@ -1552,23 +1554,15 @@ class MeshCoreConnector extends ChangeNotifier {
 
   Future<void> importDiscoveredContact(DiscoveryContact contact) async {
     if (!isConnected) return;
+
     await sendFrame(
-      buildSetAutoAddConfigFrame(
-        autoAddChat: true,
-        autoAddRepeater: true,
-        autoAddRoomServer: true,
-        autoAddSensor: true,
-        overwriteOldest: _overwriteOldest,
-      ),
-    );
-    await sendFrame(buildImportContactFrame(contact.rawPacket));
-    await sendFrame(
-      buildSetAutoAddConfigFrame(
-        autoAddChat: _autoAddUsers,
-        autoAddRepeater: _autoAddRepeaters,
-        autoAddRoomServer: _autoAddRoomServers,
-        autoAddSensor: _autoAddSensors,
-        overwriteOldest: _overwriteOldest,
+      buildUpdateContactPathFrame(
+        contact.publicKey,
+        contact.path,
+        contact.pathLength,
+        type: contact.type,
+        flags: 0,
+        name: contact.name,
       ),
     );
 
@@ -3805,6 +3799,76 @@ class MeshCoreConnector extends ChangeNotifier {
     }
   }
 
+  void importContact(Uint8List frame) {
+    final packet = BufferReader(frame);
+    int payloadType = 0;
+    Uint8List pathBytes = Uint8List(0);
+    try {
+      packet.skipBytes(1); // Skip frame type byte
+      packet.skipBytes(1); // Skip SNR byte
+      packet.skipBytes(1); // Skip RSSI byte
+      final header = packet.readByte();
+      payloadType = (header >> 2) & 0x0F;
+      //final payloadVer = (header >> 6) & 0x03;
+      final pathLen = packet.readByte();
+      pathBytes = packet.readBytes(pathLen);
+    } catch (e) {
+      appLogger.warn('Malformed RX frame: $e', tag: 'Connector');
+      return;
+    }
+    double latitude = 0.0;
+    double longitude = 0.0;
+    String name = '';
+    Uint8List publicKey = Uint8List(0);
+    int type = 0;
+    int timestamp = 0;
+    bool hasLocation = false;
+    bool hasName = false;
+    if (payloadType != payloadTypeADVERT) {
+      appLogger.warn('Unexpected payload type: $payloadType', tag: 'Connector');
+      return;
+    }
+    try {
+      publicKey = packet.readBytes(32);
+      timestamp = packet.readInt32LE();
+      //TODO add signature verification
+      packet.skipBytes(64); // Skip signature for now
+      final flags = packet.readByte();
+      type = flags & 0x0F;
+      hasLocation = (flags & 0x10) != 0;
+      // For future use:
+      //final hasFeature1 = (flags & 0x20) != 0;
+      //final hasFeature2 = (flags & 0x40) != 0;
+      hasName = (flags & 0x80) != 0;
+      if (hasLocation && packet.remaining >= 8) {
+        latitude = packet.readInt32LE() / 1e6;
+        longitude = packet.readInt32LE() / 1e6;
+      }
+      if (hasName && packet.remaining > 0) {
+        name = packet.readString();
+      }
+    } catch (e) {
+      appLogger.warn('Malformed advert frame: $e', tag: 'Connector');
+      return;
+    }
+
+    importDiscoveredContact(
+      DiscoveryContact(
+        rawPacket: frame,
+        publicKey: publicKey,
+        name: name,
+        type: type,
+        pathLength: pathBytes.length,
+        path: Uint8List.fromList(
+          pathBytes.reversed.toList(),
+        ), // Store path in reverse for easier use in outgoing messages
+        latitude: latitude,
+        longitude: longitude,
+        lastSeen: DateTime.fromMillisecondsSinceEpoch(timestamp * 1000),
+      ),
+    );
+  }
+
   void _handlePayloadAdvertReceived(
     Uint8List rawPacket,
     Uint8List payload,
@@ -3982,7 +4046,11 @@ class MeshCoreConnector extends ChangeNotifier {
     }
   }
 
-  void _handleDiscovery(Contact contact, Uint8List rawPacket) {
+  void _handleDiscovery(
+    Contact contact,
+    Uint8List rawPacket, {
+    bool noNotify = false,
+  }) {
     debugPrint('Discovered new contact: ${contact.name}');
 
     final existingIndex = _discoveredContacts.indexWhere(
@@ -4022,7 +4090,7 @@ class MeshCoreConnector extends ChangeNotifier {
     unawaited(_persistDiscoveredContacts());
 
     // Show notification for new contact (advertisement)
-    if (_appSettingsService != null) {
+    if (_appSettingsService != null && !noNotify) {
       final settings = _appSettingsService!.settings;
       if (settings.notificationsEnabled && settings.notifyOnNewAdvert) {
         _notificationService.showAdvertNotification(
@@ -4033,6 +4101,11 @@ class MeshCoreConnector extends ChangeNotifier {
       }
     }
   }
+
+  void removeAllDiscoveredContacts() {
+    _discoveredContacts.clear();
+    notifyListeners();
+  }
 }
 
 const int _phRouteMask = 0x03;

lib/l10n/app_bg.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_copyContact": "Копирай контакт в клипборда",
   "discoveredContacts_deleteContact": "Изтрий контакт",
   "discoveredContacts_addContact": "Добави контакт",
-  "contactsSettings_overwriteOldestSubtitle": "Когато списъкът с контакти е пълен, най-старият неключов контакт ще бъде заменен."
+  "contactsSettings_overwriteOldestSubtitle": "Когато списъкът с контакти е пълен, най-старият неключов контакт ще бъде заменен.",
+  "discoveredContacts_deleteContactAll": "Изтриване на Всички Открити Контакти",
+  "discoveredContacts_deleteContactAllContent": "Сигурни ли сте, че искате да изтриете всички открити контакти?",
+  "common_deleteAll": "Изтрий всичко"
 }

lib/l10n/app_de.arb

@@ -1849,5 +1849,8 @@
   "discoveredContacts_copyContact": "Kontakt in die Zwischenablage kopieren",
   "contactsSettings_overwriteOldestTitle": "Überschreiben des Ältesten",
   "contactsSettings_autoAddSensorsSubtitle": "Ermöglichen Sie dem Begleiter, automatisch entdeckte Sensoren hinzuzufügen",
-  "contactsSettings_overwriteOldestSubtitle": "Wenn die Kontaktliste voll ist, wird der älteste nicht favorisierte Kontakt ersetzt."
+  "contactsSettings_overwriteOldestSubtitle": "Wenn die Kontaktliste voll ist, wird der älteste nicht favorisierte Kontakt ersetzt.",
+  "common_deleteAll": "Alles löschen",
+  "discoveredContacts_deleteContactAllContent": "Sind Sie sicher, dass Sie alle gefundenen Kontakte löschen möchten?",
+  "discoveredContacts_deleteContactAll": "Alle entdeckten Kontakte löschen"
 }

lib/l10n/app_en.arb

@@ -10,6 +10,7 @@
   "common_unknownDevice": "Unknown Device",
   "common_save": "Save",
   "common_delete": "Delete",
+  "common_deleteAll": "Delete All",
   "common_close": "Close",
   "common_edit": "Edit",
   "common_add": "Add",
@@ -1859,5 +1860,7 @@
   "discoveredContacts_contactAdded": "Contact added",
   "discoveredContacts_addContact": "Add Contact",
   "discoveredContacts_copyContact": "Copy Contact to clipboard",
-  "discoveredContacts_deleteContact": "Delete Contact"
+  "discoveredContacts_deleteContact": "Delete Discovered Contact",
+  "discoveredContacts_deleteContactAll": "Delete All Discovered Contacts",
+  "discoveredContacts_deleteContactAllContent": "Are you sure you want to delete all discovered contacts?"
 }

lib/l10n/app_es.arb

@@ -1849,5 +1849,8 @@
   "discoveredContacts_Title": "Contactos descubiertos",
   "discoveredContacts_searchHint": "Buscar contactos descubiertos",
   "discoveredContacts_addContact": "Agregar contacto",
-  "contactsSettings_overwriteOldestSubtitle": "Cuando la lista de contactos esté llena, se reemplazará el contacto no favorito más antiguo."
+  "contactsSettings_overwriteOldestSubtitle": "Cuando la lista de contactos esté llena, se reemplazará el contacto no favorito más antiguo.",
+  "common_deleteAll": "Eliminar todo",
+  "discoveredContacts_deleteContactAll": "Eliminar Todos los Contactos Descubiertos",
+  "discoveredContacts_deleteContactAllContent": "¿Está seguro de que desea eliminar todos los contactos descubiertos!"
 }

lib/l10n/app_fr.arb

@@ -1821,5 +1821,8 @@
   "contactsSettings_autoAddSensorsSubtitle": "Autoriser le compagnon à ajouter automatiquement les capteurs découverts.",
   "discoveredContacts_Title": "Contacts découverts",
   "discoveredContacts_searchHint": "Rechercher des contacts découverts",
-  "contactsSettings_overwriteOldestSubtitle": "Lorsque la liste de contacts est pleine, le contact le plus ancien non favori sera remplacé."
+  "contactsSettings_overwriteOldestSubtitle": "Lorsque la liste de contacts est pleine, le contact le plus ancien non favori sera remplacé.",
+  "common_deleteAll": "Supprimer tout",
+  "discoveredContacts_deleteContactAll": "Supprimer tous les contacts découverts",
+  "discoveredContacts_deleteContactAllContent": "Êtes-vous sûr de vouloir supprimer tous les contacts découverts ?"
 }

lib/l10n/app_it.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_contactAdded": "Contatto aggiunto",
   "discoveredContacts_deleteContact": "Elimina Contatto",
   "discoveredContacts_copyContact": "Copia contatto negli appunti",
-  "contactsSettings_overwriteOldestSubtitle": "Quando l'elenco dei contatti è pieno, il contatto più vecchio non tra i preferiti verrà sostituito."
+  "contactsSettings_overwriteOldestSubtitle": "Quando l'elenco dei contatti è pieno, il contatto più vecchio non tra i preferiti verrà sostituito.",
+  "common_deleteAll": "Elimina tutto",
+  "discoveredContacts_deleteContactAllContent": "Sei sicuro di voler eliminare tutti i contatti scoperti?",
+  "discoveredContacts_deleteContactAll": "Eliminare tutti i contatti scoperti"
 }

lib/l10n/app_localizations.dart

@@ -184,6 +184,12 @@ abstract class AppLocalizations {
   /// **'Delete'**
   String get common_delete;
 
+  /// No description provided for @common_deleteAll.
+  ///
+  /// In en, this message translates to:
+  /// **'Delete All'**
+  String get common_deleteAll;
+
   /// No description provided for @common_close.
   ///
   /// In en, this message translates to:
@@ -5510,8 +5516,20 @@ abstract class AppLocalizations {
   /// No description provided for @discoveredContacts_deleteContact.
   ///
   /// In en, this message translates to:
-  /// **'Delete Contact'**
+  /// **'Delete Discovered Contact'**
   String get discoveredContacts_deleteContact;
+
+  /// No description provided for @discoveredContacts_deleteContactAll.
+  ///
+  /// In en, this message translates to:
+  /// **'Delete All Discovered Contacts'**
+  String get discoveredContacts_deleteContactAll;
+
+  /// No description provided for @discoveredContacts_deleteContactAllContent.
+  ///
+  /// In en, this message translates to:
+  /// **'Are you sure you want to delete all discovered contacts?'**
+  String get discoveredContacts_deleteContactAllContent;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_bg.dart

@@ -38,6 +38,9 @@ class AppLocalizationsBg extends AppLocalizations {
   @override
   String get common_delete => 'Изтрий';
 
+  @override
+  String get common_deleteAll => 'Изтрий всичко';
+
   @override
   String get common_close => 'Затвори';
 
@@ -3189,4 +3192,12 @@ class AppLocalizationsBg extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Изтрий контакт';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Изтриване на Всички Открити Контакти';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Сигурни ли сте, че искате да изтриете всички открити контакти?';
 }

lib/l10n/app_localizations_de.dart

@@ -38,6 +38,9 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get common_delete => 'Löschen';
 
+  @override
+  String get common_deleteAll => 'Alles löschen';
+
   @override
   String get common_close => 'Schließen';
 
@@ -3200,4 +3203,12 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Kontakt löschen';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Alle entdeckten Kontakte löschen';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Sind Sie sicher, dass Sie alle gefundenen Kontakte löschen möchten?';
 }

lib/l10n/app_localizations_en.dart

@@ -38,6 +38,9 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get common_delete => 'Delete';
 
+  @override
+  String get common_deleteAll => 'Delete All';
+
   @override
   String get common_close => 'Close';
 
@@ -3137,5 +3140,13 @@ class AppLocalizationsEn extends AppLocalizations {
   String get discoveredContacts_copyContact => 'Copy Contact to clipboard';
 
   @override
-  String get discoveredContacts_deleteContact => 'Delete Contact';
+  String get discoveredContacts_deleteContact => 'Delete Discovered Contact';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Delete All Discovered Contacts';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Are you sure you want to delete all discovered contacts?';
 }

lib/l10n/app_localizations_es.dart

@@ -38,6 +38,9 @@ class AppLocalizationsEs extends AppLocalizations {
   @override
   String get common_delete => 'Eliminar';
 
+  @override
+  String get common_deleteAll => 'Eliminar todo';
+
   @override
   String get common_close => 'Cerrar';
 
@@ -3193,4 +3196,12 @@ class AppLocalizationsEs extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Eliminar contacto';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Eliminar Todos los Contactos Descubiertos';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      '¿Está seguro de que desea eliminar todos los contactos descubiertos!';
 }

lib/l10n/app_localizations_fr.dart

@@ -38,6 +38,9 @@ class AppLocalizationsFr extends AppLocalizations {
   @override
   String get common_delete => 'Supprimer';
 
+  @override
+  String get common_deleteAll => 'Supprimer tout';
+
   @override
   String get common_close => 'Fermer';
 
@@ -3214,4 +3217,12 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Supprimer le contact';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Supprimer tous les contacts découverts';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Êtes-vous sûr de vouloir supprimer tous les contacts découverts ?';
 }

lib/l10n/app_localizations_it.dart

@@ -38,6 +38,9 @@ class AppLocalizationsIt extends AppLocalizations {
   @override
   String get common_delete => 'Elimina';
 
+  @override
+  String get common_deleteAll => 'Elimina tutto';
+
   @override
   String get common_close => 'Chiudi';
 
@@ -3194,4 +3197,12 @@ class AppLocalizationsIt extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Elimina Contatto';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Eliminare tutti i contatti scoperti';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Sei sicuro di voler eliminare tutti i contatti scoperti?';
 }

lib/l10n/app_localizations_nl.dart

@@ -38,6 +38,9 @@ class AppLocalizationsNl extends AppLocalizations {
   @override
   String get common_delete => 'Verwijderen';
 
+  @override
+  String get common_deleteAll => 'Alles verwijderen';
+
   @override
   String get common_close => 'Sluiten';
 
@@ -3180,4 +3183,12 @@ class AppLocalizationsNl extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Contact verwijderen';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Verwijder alle ontdekte contacten';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Weet u zeker dat u alle ontdekte contacten wilt verwijderen?';
 }

lib/l10n/app_localizations_pl.dart

@@ -38,6 +38,9 @@ class AppLocalizationsPl extends AppLocalizations {
   @override
   String get common_delete => 'Usuń';
 
+  @override
+  String get common_deleteAll => 'Usuń wszystko';
+
   @override
   String get common_close => 'Zamknąć';
 
@@ -3193,4 +3196,12 @@ class AppLocalizationsPl extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Usuń kontakt';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Usuń wszystkie odkryte kontakty';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Czy na pewno chcesz usunąć wszystkie znalezione kontakty?';
 }

lib/l10n/app_localizations_pt.dart

@@ -38,6 +38,9 @@ class AppLocalizationsPt extends AppLocalizations {
   @override
   String get common_delete => 'Excluir';
 
+  @override
+  String get common_deleteAll => 'Excluir Tudo';
+
   @override
   String get common_close => 'Fechar';
 
@@ -3190,4 +3193,12 @@ class AppLocalizationsPt extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Excluir Contato';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Excluir Todos os Contatos Descobertos';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Tem certeza de que deseja excluir todos os contatos descobertos?';
 }

lib/l10n/app_localizations_ru.dart

@@ -38,6 +38,9 @@ class AppLocalizationsRu extends AppLocalizations {
   @override
   String get common_delete => 'Удалить';
 
+  @override
+  String get common_deleteAll => 'Удалить все';
+
   @override
   String get common_close => 'Закрыть';
 
@@ -3202,4 +3205,12 @@ class AppLocalizationsRu extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Удалить контакт';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Удалить Все Обнаруженные Контакты';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Вы уверены, что хотите удалить все обнаруженные контакты?';
 }

lib/l10n/app_localizations_sk.dart

@@ -38,6 +38,9 @@ class AppLocalizationsSk extends AppLocalizations {
   @override
   String get common_delete => 'Odstrániť';
 
+  @override
+  String get common_deleteAll => 'Zmazať všetko';
+
   @override
   String get common_close => 'Zavrieť';
 
@@ -3175,4 +3178,12 @@ class AppLocalizationsSk extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Zmazať kontakt';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Zmazať všetky objavené kontakty';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Ste si istí, že chcete zmazať všetky objavené kontakty?';
 }

lib/l10n/app_localizations_sl.dart

@@ -38,6 +38,9 @@ class AppLocalizationsSl extends AppLocalizations {
   @override
   String get common_delete => 'Izbrisati';
 
+  @override
+  String get common_deleteAll => 'Izbriši vse';
+
   @override
   String get common_close => 'Zapri';
 
@@ -3179,4 +3182,12 @@ class AppLocalizationsSl extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Izbriši stik';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Izbriši vse odkrite kontakte';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Ste prepričani, da želite izbrisati vse odkrite kontakte?';
 }

lib/l10n/app_localizations_sv.dart

@@ -38,6 +38,9 @@ class AppLocalizationsSv extends AppLocalizations {
   @override
   String get common_delete => 'Radera';
 
+  @override
+  String get common_deleteAll => 'Ta bort alla';
+
   @override
   String get common_close => 'Stänga';
 
@@ -3158,4 +3161,12 @@ class AppLocalizationsSv extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Ta bort kontakt';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Ta bort alla upptäckta kontakter';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Är du säker på att du vill ta bort alla upptäckta kontakter?';
 }

lib/l10n/app_localizations_uk.dart

@@ -38,6 +38,9 @@ class AppLocalizationsUk extends AppLocalizations {
   @override
   String get common_delete => 'Видалити';
 
+  @override
+  String get common_deleteAll => 'Видалити все';
+
   @override
   String get common_close => 'Закрити';
 
@@ -3209,4 +3212,12 @@ class AppLocalizationsUk extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => 'Видалити контакт';
+
+  @override
+  String get discoveredContacts_deleteContactAll =>
+      'Видалити всі виявлені контакти';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent =>
+      'Ви впевнені, що хочете видалити всі виявлені контакти?';
 }

lib/l10n/app_localizations_zh.dart

@@ -38,6 +38,9 @@ class AppLocalizationsZh extends AppLocalizations {
   @override
   String get common_delete => '删除';
 
+  @override
+  String get common_deleteAll => '删除全部';
+
   @override
   String get common_close => '关闭';
 
@@ -2957,4 +2960,10 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get discoveredContacts_deleteContact => '删除联系人';
+
+  @override
+  String get discoveredContacts_deleteContactAll => '删除所有发现的联系人';
+
+  @override
+  String get discoveredContacts_deleteContactAllContent => '您确定要删除所有发现的联系人吗？';
 }

lib/l10n/app_nl.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_Title": "Ontdekte contacten",
   "discoveredContacts_contactAdded": "Contact toegevoegd",
   "discoveredContacts_searchHint": "Ontdekte contacten zoeken",
-  "contactsSettings_overwriteOldestSubtitle": "Wanneer de contactenlijst vol is, wordt de oudste niet-favoriete contactpersoon vervangen."
+  "contactsSettings_overwriteOldestSubtitle": "Wanneer de contactenlijst vol is, wordt de oudste niet-favoriete contactpersoon vervangen.",
+  "common_deleteAll": "Alles verwijderen",
+  "discoveredContacts_deleteContactAll": "Verwijder alle ontdekte contacten",
+  "discoveredContacts_deleteContactAllContent": "Weet u zeker dat u alle ontdekte contacten wilt verwijderen?"
 }

lib/l10n/app_pl.arb

@@ -1821,5 +1821,8 @@
   "contactsSettings_autoAddSensorsSubtitle": "Zezwól towarzyszowi na automatyczne dodawanie wykrytych czujników.",
   "discoveredContacts_noMatching": "Brak pasujących kontaktów",
   "discoveredContacts_deleteContact": "Usuń kontakt",
-  "contactsSettings_overwriteOldestSubtitle": "Gdy lista kontaktów jest pełna, najstarszy nieulubiony kontakt zostanie zastąpiony."
+  "contactsSettings_overwriteOldestSubtitle": "Gdy lista kontaktów jest pełna, najstarszy nieulubiony kontakt zostanie zastąpiony.",
+  "common_deleteAll": "Usuń wszystko",
+  "discoveredContacts_deleteContactAllContent": "Czy na pewno chcesz usunąć wszystkie znalezione kontakty?",
+  "discoveredContacts_deleteContactAll": "Usuń wszystkie odkryte kontakty"
 }

lib/l10n/app_pt.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_deleteContact": "Excluir Contato",
   "discoveredContacts_contactAdded": "Contato adicionado",
   "discoveredContacts_addContact": "Adicionar Contato",
-  "contactsSettings_overwriteOldestSubtitle": "Quando a lista de contatos estiver cheia, o contato mais antigo não favoritado será substituído."
+  "contactsSettings_overwriteOldestSubtitle": "Quando a lista de contatos estiver cheia, o contato mais antigo não favoritado será substituído.",
+  "common_deleteAll": "Excluir Tudo",
+  "discoveredContacts_deleteContactAll": "Excluir Todos os Contatos Descobertos",
+  "discoveredContacts_deleteContactAllContent": "Tem certeza de que deseja excluir todos os contatos descobertos?"
 }

lib/l10n/app_ru.arb

@@ -1061,5 +1061,8 @@
   "discoveredContacts_addContact": "Добавить контакт",
   "discoveredContacts_Title": "Обнаруженные контакты",
   "discoveredContacts_deleteContact": "Удалить контакт",
-  "contactsSettings_overwriteOldestSubtitle": "Когда список контактов заполнен, будет заменен самый старый контакт, который не находится в избранном."
+  "contactsSettings_overwriteOldestSubtitle": "Когда список контактов заполнен, будет заменен самый старый контакт, который не находится в избранном.",
+  "common_deleteAll": "Удалить все",
+  "discoveredContacts_deleteContactAllContent": "Вы уверены, что хотите удалить все обнаруженные контакты?",
+  "discoveredContacts_deleteContactAll": "Удалить Все Обнаруженные Контакты"
 }

lib/l10n/app_sk.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_Title": "Objavené kontakty",
   "contactsSettings_overwriteOldestTitle": "Prepísať najstaršie",
   "discoveredContacts_addContact": "Pridať kontakt",
-  "contactsSettings_overwriteOldestSubtitle": "Keď je zoznam kontaktov plný, bude nahradený najstarší neoznačený kontakt."
+  "contactsSettings_overwriteOldestSubtitle": "Keď je zoznam kontaktov plný, bude nahradený najstarší neoznačený kontakt.",
+  "discoveredContacts_deleteContactAll": "Zmazať všetky objavené kontakty",
+  "common_deleteAll": "Zmazať všetko",
+  "discoveredContacts_deleteContactAllContent": "Ste si istí, že chcete zmazať všetky objavené kontakty?"
 }

lib/l10n/app_sl.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_Title": "Odkriti stiki",
   "discoveredContacts_searchHint": "Najdeni stiki po iskanju",
   "discoveredContacts_deleteContact": "Izbriši stik",
-  "contactsSettings_overwriteOldestSubtitle": "Ko je seznam stikov poln, bo najstarejši nestarševski stik zamenjan."
+  "contactsSettings_overwriteOldestSubtitle": "Ko je seznam stikov poln, bo najstarejši nestarševski stik zamenjan.",
+  "common_deleteAll": "Izbriši vse",
+  "discoveredContacts_deleteContactAllContent": "Ste prepričani, da želite izbrisati vse odkrite kontakte?",
+  "discoveredContacts_deleteContactAll": "Izbriši vse odkrite kontakte"
 }

lib/l10n/app_sv.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_contactAdded": "Kontakt tillagd",
   "discoveredContacts_addContact": "Lägg till kontakt",
   "discoveredContacts_copyContact": "Kopiera kontakt till urklipp",
-  "contactsSettings_overwriteOldestSubtitle": "När kontaktlistan är full ersätts den äldsta icke-favoriterade kontakten."
+  "contactsSettings_overwriteOldestSubtitle": "När kontaktlistan är full ersätts den äldsta icke-favoriterade kontakten.",
+  "common_deleteAll": "Ta bort alla",
+  "discoveredContacts_deleteContactAllContent": "Är du säker på att du vill ta bort alla upptäckta kontakter?",
+  "discoveredContacts_deleteContactAll": "Ta bort alla upptäckta kontakter"
 }

lib/l10n/app_uk.arb

@@ -1821,5 +1821,8 @@
   "discoveredContacts_deleteContact": "Видалити контакт",
   "discoveredContacts_copyContact": "Копіювати контакт у буфер обміну",
   "discoveredContacts_addContact": "Додати контакт",
-  "contactsSettings_overwriteOldestSubtitle": "Коли список контактів заповнений, найстарший контакт без позначки улюбленого буде замінений."
+  "contactsSettings_overwriteOldestSubtitle": "Коли список контактів заповнений, найстарший контакт без позначки улюбленого буде замінений.",
+  "common_deleteAll": "Видалити все",
+  "discoveredContacts_deleteContactAll": "Видалити всі виявлені контакти",
+  "discoveredContacts_deleteContactAllContent": "Ви впевнені, що хочете видалити всі виявлені контакти?"
 }

lib/l10n/app_zh.arb

@@ -1826,5 +1826,8 @@
   "discoveredContacts_noMatching": "没有匹配的联系人",
   "discoveredContacts_Title": "已发现的联系人",
   "discoveredContacts_copyContact": "复制联系人到剪贴板",
-  "contactsSettings_overwriteOldestSubtitle": "当联系人列表已满时，将替换最老的非收藏联系人。"
+  "contactsSettings_overwriteOldestSubtitle": "当联系人列表已满时，将替换最老的非收藏联系人。",
+  "common_deleteAll": "删除全部",
+  "discoveredContacts_deleteContactAllContent": "您确定要删除所有发现的联系人吗？",
+  "discoveredContacts_deleteContactAll": "删除所有发现的联系人"
 }

lib/screens/contacts_screen.dart

@@ -222,7 +222,7 @@ class _ContactsScreenState extends State<ContactsScreen>
       final bytes = hex2Uint8List(hexString);
       final importContactFrame = buildImportContactFrame(bytes);
       _pendingOperations.add(ContactOperationType.import);
-      await connector.sendFrame(importContactFrame, expectsGenericAck: true);
+      connector.importContact(importContactFrame);
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(

lib/screens/discovery_screen.dart

@@ -56,6 +56,25 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
           subtitle: false,
         ),
         centerTitle: true,
+        actions: [
+          PopupMenuButton(
+            itemBuilder: (context) => [
+              PopupMenuItem(
+                child: Row(
+                  children: [
+                    const Icon(Icons.delete, color: Colors.red),
+                    const SizedBox(width: 8),
+                    Text(context.l10n.discoveredContacts_deleteContactAll),
+                  ],
+                ),
+                onTap: () {
+                  _deleteContacts(context, connector);
+                },
+              ),
+            ],
+            icon: const Icon(Icons.more_vert),
+          ),
+        ],
       ),
       body: Column(
         children: [
@@ -163,6 +182,30 @@ class _DiscoveryScreenState extends State<DiscoveryScreen> {
     }
   }
 
+  void _deleteContacts(BuildContext context, MeshCoreConnector connector) {
+    final l10n = context.l10n;
+    showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: Text(l10n.common_deleteAll),
+        content: Text(l10n.discoveredContacts_deleteContactAllContent),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(context),
+            child: Text(l10n.common_cancel),
+          ),
+          TextButton(
+            onPressed: () async {
+              Navigator.pop(context);
+              connector.removeAllDiscoveredContacts();
+            },
+            child: Text(l10n.common_deleteAll),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _buildFilters(
     List<DiscoveryContact> filteredAndSorted,
     MeshCoreConnector connector,