Hide "Add to a group" if you don't have any groups.

app/src/main/java/org/thoughtcrime/securesms/database/GroupDatabase.java

@@ -251,6 +251,20 @@ public final class GroupDatabase extends Database {
     return new Reader(cursor);
   }
 
+  public int getActiveGroupCount() {
+    SQLiteDatabase db    = databaseHelper.getReadableDatabase();
+    String[]       cols  = { "COUNT(*)" };
+    String         query = ACTIVE + " = 1";
+
+    try (Cursor cursor = db.query(TABLE_NAME, cols, query, null, null, null, null)) {
+      if (cursor != null && cursor.moveToFirst()) {
+        return cursor.getInt(0);
+      }
+    }
+
+    return 0;
+  }
+
   @WorkerThread
   public @NonNull List<Recipient> getGroupMembers(@NonNull GroupId groupId, @NonNull MemberSet memberSet) {
     if (groupId.isV2()) {

app/src/main/java/org/thoughtcrime/securesms/recipients/ui/bottomsheet/RecipientBottomSheetDialogFragment.java

@@ -29,7 +29,6 @@ import org.thoughtcrime.securesms.groups.GroupId;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientExporter;
 import org.thoughtcrime.securesms.recipients.RecipientId;
-import org.thoughtcrime.securesms.util.CommunicationActions;
 import org.thoughtcrime.securesms.util.ServiceUtil;
 import org.thoughtcrime.securesms.util.ThemeUtil;
 import org.thoughtcrime.securesms.util.Util;
@@ -179,9 +178,11 @@ public final class RecipientBottomSheetDialogFragment extends BottomSheetDialogF
           startActivityForResult(RecipientExporter.export(recipient).asAddContactIntent(), REQUEST_CODE_ADD_CONTACT);
         });
       }
+    });
 
+    viewModel.getCanAddToAGroup().observe(getViewLifecycleOwner(), canAdd -> {
       addToGroupButton.setText(groupId == null ? R.string.RecipientBottomSheet_add_to_a_group : R.string.RecipientBottomSheet_add_to_another_group);
-      addToGroupButton.setVisibility(recipient.isRegistered() && !recipient.isGroup() && !recipient.isLocalNumber() ? View.VISIBLE : View.GONE);
+      addToGroupButton.setVisibility(canAdd ? View.VISIBLE : View.GONE);
     });
 
     viewModel.getAdminActionStatus().observe(getViewLifecycleOwner(), adminStatus -> {

app/src/main/java/org/thoughtcrime/securesms/recipients/ui/bottomsheet/RecipientDialogRepository.java

@@ -135,6 +135,10 @@ final class RecipientDialogRepository {
                    onComplete::accept);
   }
 
+  public void getActiveGroupCount(@NonNull Consumer<Integer> onComplete) {
+    SignalExecutors.BOUNDED.execute(() -> onComplete.accept(DatabaseFactory.getGroupDatabase(context).getActiveGroupCount()));
+  }
+
   interface RecipientCallback {
     void onRecipient(@NonNull Recipient recipient);
   }

app/src/main/java/org/thoughtcrime/securesms/recipients/ui/bottomsheet/RecipientDialogViewModel.java

@@ -40,6 +40,7 @@ final class RecipientDialogViewModel extends ViewModel {
   private final LiveData<Recipient>                              recipient;
   private final MutableLiveData<IdentityDatabase.IdentityRecord> identity;
   private final LiveData<AdminActionStatus>                      adminActionStatus;
+  private final LiveData<Boolean>                                canAddToAGroup;
   private final MutableLiveData<Boolean>                         adminActionBusy;
 
   private RecipientDialogViewModel(@NonNull Context context,
@@ -73,12 +74,23 @@ final class RecipientDialogViewModel extends ViewModel {
     if (!isSelf) {
       recipientDialogRepository.getIdentity(identity::postValue);
     }
+
+    MutableLiveData<Integer> localGroupCount = new MutableLiveData<>(0);
+
+    canAddToAGroup = LiveDataUtil.combineLatest(recipient, localGroupCount,
+                                                (r, count) -> count > 0 && r.isRegistered() && !r.isGroup() && !r.isLocalNumber());
+
+    recipientDialogRepository.getActiveGroupCount(localGroupCount::postValue);
   }
 
   LiveData<Recipient> getRecipient() {
     return recipient;
   }
 
+  public LiveData<Boolean> getCanAddToAGroup() {
+    return canAddToAGroup;
+  }
+
   LiveData<AdminActionStatus> getAdminActionStatus() {
     return adminActionStatus;
   }

app/src/main/java/org/thoughtcrime/securesms/recipients/ui/managerecipient/ManageRecipientFragment.java

@@ -202,6 +202,7 @@ public class ManageRecipientFragment extends LoggingFragment {
     viewModel.getRecipient().observe(getViewLifecycleOwner(), this::presentRecipient);
     viewModel.getMediaCursor().observe(getViewLifecycleOwner(), this::presentMediaCursor);
     viewModel.getMuteState().observe(getViewLifecycleOwner(), this::presentMuteState);
+    viewModel.getCanAddToAGroup().observe(getViewLifecycleOwner(), canAdd -> addToAGroup.setVisibility(canAdd ? View.VISIBLE : View.GONE));
 
     disappearingMessagesRow.setOnClickListener(v -> viewModel.handleExpirationSelection(requireContext()));
     block.setOnClickListener(v -> viewModel.onBlockClicked(requireActivity()));

app/src/main/java/org/thoughtcrime/securesms/recipients/ui/managerecipient/ManageRecipientRepository.java

@@ -105,4 +105,8 @@ final class ManageRecipientRepository {
                  .sortBy(gr -> gr.getDisplayName(context))
                  .toList();
   }
+
+  void getActiveGroupCount(@NonNull Consumer<Integer> onComplete) {
+    SignalExecutors.BOUNDED.execute(() -> onComplete.accept(DatabaseFactory.getGroupDatabase(context).getActiveGroupCount()));
+  }
 }

app/src/main/java/org/thoughtcrime/securesms/recipients/ui/managerecipient/ManageRecipientViewModel.java

@@ -58,6 +58,7 @@ public final class ManageRecipientViewModel extends ViewModel {
   private final LiveData<Boolean>                                canBlock;
   private final LiveData<List<GroupMemberEntry.FullMember>>      visibleSharedGroups;
   private final LiveData<String>                                 sharedGroupsCountSummary;
+  private final LiveData<Boolean>                                canAddToAGroup;
 
   private ManageRecipientViewModel(@NonNull Context context, @NonNull ManageRecipientRepository manageRecipientRepository) {
     this.context                   = context;
@@ -95,6 +96,13 @@ public final class ManageRecipientViewModel extends ViewModel {
     if (!isSelf) {
       manageRecipientRepository.getIdentity(identity::postValue);
     }
+
+    MutableLiveData<Integer> localGroupCount = new MutableLiveData<>(0);
+
+    canAddToAGroup = LiveDataUtil.combineLatest(recipient, localGroupCount,
+                                                (r, count) -> count > 0 && r.isRegistered() && !r.isGroup() && !r.isLocalNumber());
+
+    manageRecipientRepository.getActiveGroupCount(localGroupCount::postValue);
   }
 
   private static @NonNull String getDisplayTitle(@NonNull Recipient recipient, @NonNull Context context) {
@@ -132,6 +140,10 @@ public final class ManageRecipientViewModel extends ViewModel {
     return recipient;
   }
 
+  LiveData<Boolean> getCanAddToAGroup() {
+    return canAddToAGroup;
+  }
+
   LiveData<MediaCursor> getMediaCursor() {
     return mediaCursor;
   }