Convert Pine (Tradingview) indicator into MQL4 expert

I want it to be translated to an expert to be used as a robot.

- i want to be able to control all the inputs

- i want to be able to control the lot size

- i want to be able to control the risks

//@version=3
///////////////////////////IMPROVED///////////////////////////////////////
// a very simple but very reliable strategy, works best on Heiken Ashi charts
//Heiken Ashi Candle close crossing over 20 period SMA
//Added more safety. 
//Continuation trades added
//////////////////////////////////////////////////////////////////////////

strategy("Heiken_Ashi_SMA20_Close_Crossover", overlay=true)



longCondition = crossover(close, sma(close, 20))  or (crossover(close,close[1]) and close>sma(close, 20))
if (longCondition)
    strategy.entry("Long", strategy.long)
strategy.close("Long",when=crossunder(close,close[1]) and low<sma(close, 20) )

shortCondition = crossunder(close, sma(close, 20)) or (crossunder(close,close[1]) and close<sma(close, 20))
if (shortCondition)
    strategy.entry("Short",strategy.short)
strategy.close("Short",when=crossover(close,close[1]) and high>sma(close, 20) )