Estratégia da lacuna de valor justo (FVG)

//@version=6
strategy("Fair Value Gap (FVG) Strategy", overlay=true)
emaFast = ta.ema(close, 20)
emaSlow = ta.ema(close, 50)
bullStructure = close > emaFast and emaFast > emaSlow
bearStructure = close < emaFast and emaFast < emaSlow
liquidityGrab = low < ta.lowest(low, 10)[1] and close > open
longSignal = bullStructure and liquidityGrab
exitSignal = bearStructure
if longSignal
    strategy.entry("Long", strategy.long)
if exitSignal
    strategy.close("Long")
plot(emaFast, "Fast", color=color.aqua)
plot(emaSlow, "Slow", color=color.orange)

def fast = ExpAverage(close, 20);
def slow = ExpAverage(close, 50);
def liquidityGrab = low < Lowest(low, 10)[1] and close > open;
def buySignal = close > fast and fast > slow and liquidityGrab;
def sellSignal = close < fast;
AddOrder(OrderType.BUY_AUTO, buySignal, close, 1, Color.GREEN, Color.GREEN, "SMC Buy");
AddOrder(OrderType.SELL_AUTO, sellSignal, close, 1, Color.RED, Color.RED, "SMC Exit");
plot FastLine = fast;
FastLine.SetDefaultColor(Color.CYAN);
plot SlowLine = slow;
SlowLine.SetDefaultColor(Color.ORANGE);