Auto junk experiment

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

@@ -2693,6 +2693,18 @@ class Core {
             Log.e(ex);
             db.message().setMessageError(message.id, Log.formatThrowable(ex));
         }
+
+        if (BuildConfig.DEBUG &&
+                message.sender != null && EntityFolder.INBOX.equals(folder.type)) {
+            EntityFolder junk = db.folder().getFolderByType(message.account, EntityFolder.JUNK);
+            if (junk != null) {
+                int senders = db.message().countSender(junk.id, message.sender);
+                if (senders > 0) {
+                    EntityLog.log(context, "JUNK sender=" + message.sender + " count=" + senders);
+                    EntityOperation.queue(context, message, EntityOperation.KEYWORD, "$MoreJunk", true);
+                }
+            }
+        }
     }
 
     private static void reportNewMessage(Context context, EntityAccount account, EntityFolder folder, EntityMessage message) {

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

@@ -409,6 +409,12 @@ public interface DaoMessage {
             " AND (NOT :filter_snoozed OR message.ui_snoozed IS NULL OR " + is_drafts + ")")
     int countVisible(long id, boolean filter_seen, boolean filter_unflagged, boolean filter_snoozed);
 
+    @Query("SELECT COUNT(id)" +
+            " FROM message" +
+            " WHERE folder = :folder" +
+            " AND sender = :sender")
+    int countSender(long folder, String sender);
+
     @Query("SELECT message.*" +
             ", account.pop AS accountProtocol, account.name AS accountName, identity.color AS accountColor" +
             ", account.notify AS accountNotify, account.auto_seen AS accountAutoSeen" +