Looking for a script that can trigger alert if RSI cross upper bollinger band while 50MA going down (trending downward) and Vice verca [closed]

I'm looking for my TSA TDI indicator to only trigger when crossing the upper bollinger band when 50MA is going down // and to trigger when crossing the lower bollinger band when the 50MA is going up.

I'm using open source code at the moment (TSA TDI) that is a free indicator from the Trader Society Academy that you can find on trading view.

I just wanted to add a condition to my alerts to avoid wasting time.