1 files changed, 23 insertions, 0 deletions
diff --git a/filters/spam_filter.rb b/filters/spam_filter.rb
new file mode 100644
index 0000000..ef3ba9e
--- /dev/null
+++ b/filters/spam_filter.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+SPAM_THRESHOLD = 5.0
+
+SPAM_FILTER = lambda do
+  Chotto.rule_set 'spam_filter' do
+    messages.filter('NOT tag:spam').each do |msg|
+      if msg.x_spam_score.to_f > SPAM_THRESHOLD
+        tags = [
+          'spam',
+          "spam/#{msg.x_spam_score}"
+        ]
+
+        msg.tags = tags
+        msg.save!
+
+      end
+
+      # TODO: understand why sometimes Notmuch raises MemoryErrpr
+    rescue Notmuch::MemoryError
+    end
+  end
+end