Halftrend ea

Hi , i use the halftrend indicator on daily basis for manual trades , i am currently looking to automate it , it should be pretty simple for programmers in here . 

I will be giving the script of the indicator and these are the following requirements : 

- open a new order on new signal once bar is closed and signal valid (printed) 

- close order once the indicator prints opposite signal on bar close 

- ability to select lot size (risk) and a trailing stop or multiple tp's

this strategy was tested on tradingview and gave pretty good results so hope it can be done on mt5 too !