Mute button progress so far. WIP, doesn't entirely work correctly.

app/services/mute_service.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class MuteService < BaseService
+  def call(account, target_account)
+    return if account.id == target_account.id
+    clear_home_timeline(account, target_account)
+    account.mute!(target_account)
+  end
+
+  private
+
+  def clear_home_timeline(account, target_account)
+    home_key = FeedManager.instance.key(:home, account.id)
+
+    target_account.statuses.select('id').find_each do |status|
+      redis.zrem(home_key, status.id)
+    end
+  end
+
+  def redis
+    Redis.current
+  end
+end