Heikin Aishi Stock Automation - Python

Would like to code a strategy using Python, this is mainly for stock futures where would like to sell / buy based on some HA indicators. If the HA candle is above EMA 21 should but and also if below then exit it and sell sell it (something like SAR). There should be an option to do part booking.

Would need some input parameters so I can provide the list of scripts / target as this would change and the trade details to be send to telegram.