work on #2408

app/logical/janitor_pruner.rb

@@ -0,0 +1,29 @@
+class JanitorPruner
+  def inactive_janitors
+    admin = User.admins.first
+
+    User.where("level = ?", User::Levels::JANITOR).select do |user|
+      approval_count = Post.where("created_at >= ? and approver_id = ?", 2.months.ago, user.id).count
+      approval_count == 0
+    end
+  end
+
+  def prune!
+    inactive_janitors.each do |user|
+      CurrentUser.scoped(admin, "127.0.0.1") do
+        Dmail.create_split(
+          :to_id => user.id,
+          :title => "Janitor inactivity",
+          :body => "You haven't approved a post in the past two months. In order to make sure the list of active janitors is up-to-date, you have lost your janitor privileges. Please reply to this message if you want to be reinstated."
+        )
+
+        janitor_trial = JanitorTrial.where(user_id: user.id).first
+        if janitor_trial
+          user.promote_to!(janitor_trial.original_level, :skip_feedback => true)
+        else
+          user.promote_to!(User::Levels::GOLD, :skip_feedback => true)
+        end
+      end
+    end
+  end
+end

app/logical/monthly_maintenance.rb

@@ -0,0 +1,6 @@
+class MonthlyMaintenance
+  def run
+    ActiveRecord::Base.connection.execute("set statement_timeout = 0")
+    JanitorTrial.new.message_candidates!
+  end
+end

app/logical/weekly_maintenance.rb

@@ -2,5 +2,6 @@ class WeeklyMaintenance
   def run
     ActiveRecord::Base.connection.execute("set statement_timeout = 0")
     UserPasswordResetNonce.prune!
+    JanitorPruner.new.prune!
   end
 end