Label classified messages

app/src/main/java/eu/faircode/email/AdapterMessage.java

@@ -1084,7 +1084,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             }
 
             ivFound.setVisibility(message.ui_found && found ? View.VISIBLE : View.GONE);
-            ivClassified.setVisibility(message.auto_classified ? View.VISIBLE : View.GONE);
+            ivClassified.setVisibility(message.auto_classified || message.hasKeyword("$Classified") ? View.VISIBLE : View.GONE);
 
             int snoozy = (message.ui_snoozed != null && message.ui_snoozed == Long.MAX_VALUE
                     ? R.drawable.twotone_visibility_off_24
@@ -1100,7 +1100,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
             ibSnoozed.setVisibility(message.ui_snoozed == null && !message.ui_unsnoozed ? View.GONE : View.VISIBLE);
             ivAnswered.setVisibility(message.ui_answered ? View.VISIBLE : View.GONE);
-            ivForwarded.setVisibility(message.isForwarded() ? View.VISIBLE : View.GONE);
+            ivForwarded.setVisibility(message.hasKeyword("$Forwarded") ? View.VISIBLE : View.GONE);
             ivAttachments.setVisibility(message.attachments > 0 ? View.VISIBLE : View.GONE);
 
             if (viewType == ViewType.FOLDER)

app/src/main/java/eu/faircode/email/EntityMessage.java

@@ -282,10 +282,10 @@ public class EntityMessage implements Serializable {
         return addresses.toArray(new Address[0]);
     }
 
-    boolean isForwarded() {
+    boolean hasKeyword(@NonNull String value) {
         if (keywords != null)
             for (String keyword : keywords)
-                if ("$Forwarded".equalsIgnoreCase(keyword))
+                if (value.equalsIgnoreCase(keyword))
                     return true;
         return false;
     }

app/src/main/java/eu/faircode/email/MessageClassifier.java

@@ -104,6 +104,7 @@ public class MessageClassifier {
             if (classified != null &&
                     !classified.equals(folder.name) &&
                     !TextUtils.isEmpty(message.msgid) &&
+                    !message.hasKeyword("$Classified") &&
                     !accountMsgIds.get(folder.account).contains(message.msgid) &&
                     !EntityFolder.JUNK.equals(folder.type)) {
                 boolean pro = ActivityBilling.isPro(context);
@@ -115,6 +116,7 @@ public class MessageClassifier {
                     EntityFolder dest = db.folder().getFolderByName(folder.account, classified);
                     if (dest != null && dest.auto_classify_target &&
                             (pro || EntityFolder.JUNK.equals(dest.type))) {
+                        EntityOperation.queue(context, message, EntityOperation.KEYWORD, "$Classified", true);
                         EntityOperation.queue(context, message, EntityOperation.MOVE, dest.id, false, true);
                         message.ui_hide = true;
                     }