Clean MA + Signals (overlay)

//version=5
indicator("Clean MA + Signals (overlay)", overlay=true)

// Inputs
maLen = input.int(50, "MA Length", minval=1)
maType = input.string("EMA", "MA Type", options=["SMA","EMA","RMA","WMA"])

// MA
maCalc(src, len, typ) =>
switch typ
"SMA" => ta.sma(src, len)
"EMA" => ta.ema(src, len)
"RMA" => ta.rma(src, len)
"WMA" => ta.wma(src, len)
maLine = maCalc(close, maLen, maType)
plot(maLine, "MA", color=color.new(color.teal, 0), linewidth=2)

// Siqnallar — yalnız kəsişmə anında
longCond = ta.crossover(close, maLine)
shortCond = ta.crossunder(close, maLine)

plotshape(longCond, "LONG", location=location.belowbar, style=shape.triangleup, color=color.lime, size=size.small, text="LONG")
plotshape(shortCond, "SHORT", location=location.abovebar, style=shape.triangledown, color=color.red, size=size.small, text="SHORT")

alertcondition(longCond, "LONG Signal", "LONG signal on {{ticker}} {{interval}}")
alertcondition(shortCond, "SHORT Signal", "SHORT signal on {{ticker}} {{interval}}")