Create a simple mt4 ea martingale

I need to program a simple martingale EA

1） if there are no open trades do a Buy/Sell analysis based on ema 20, 50 and 200 crossover. (if you have better accurate methods please propose)

2) open the first buy / sell based on ema

3) trade martingale until Profitable pips is met

needs you expertise to get customised Martingale inputs from user
some of the inputs i really need is:
martingale pair (select the pair that will run martingale or just detect from current ea chart)
starting lot size
multiplier
pips distance min (minimum -ve pips required for opening next martingale trade  )
Profitable pips  (when the total trades are in profitable pips range, close all trades)
magic number (to do trade management , in case mt4 chart needs to restart)