Get Learn how to trade on forex Code That Actually Works

//@version=5
indicator("SuperTrend for Forex Trading", shorttitle="Forex ST", overlay=true)

// Input parameters for customization
atrLength = input.int(10, title="ATR Length", minval=1, group="SuperTrend Settings")
factor = input.float(3.0, title="Factor", minval=0.01, step=0.01, group="SuperTrend Settings")
showSignals = input.bool(true, title="Show Buy/Sell Signals", group="Display")
enableAlerts = input.bool(true, title="Enable Alerts", group="Alerts")
useClosePrice = input.bool(false, title="Adjust with Close Price", group="SuperTrend Settings")

// Calculate ATR for volatility (key for forex trends)
atrValue = ta.atr(atrLength)

// Calculate basic upper and lower bands using H/L avg
hl2_val = (high + low) / 2
upperBasic = hl2_val + (factor * atrValue)
lowerBasic = hl2_val - (factor * atrValue)

// Persistent variables for trend calculation
var float upperBand = na
var float lowerBand = na
var int trendDirection = 1

// Update bands based on previous values and price action
upperBand := close[1] <= upperBand[1] ? math.min(upperBasic, upperBand[1]) : upperBasic
lowerBand := close[1] >= lowerBand[1] ? math.max(lowerBasic, lowerBand[1]) : lowerBasic

// Determine SuperTrend line
superTrendLine = trendDirection[1] == -1 ? lowerBand : upperBand

// Trend logic: switch on cross
if close <= superTrendLine[1]
    trendDirection := 1
else if close >= superTrendLine[1]
    trendDirection := -1
else
    trendDirection := trendDirection[1]

// Optional close price adjustment for tighter signals
finalST = useClosePrice ? (trendDirection == -1 ? math.max(lowerBand, close) : math.min(upperBand, close)) : superTrendLine

// Plot the SuperTrend line with dynamic colors
plot(finalST, title="SuperTrend", color=trendDirection == -1 ? color.green : color.red, linewidth=2)

// Buy/Sell signals on trend change
buySignal = ta.crossover(close, finalST[1]) and trendDirection == -1
sellSignal = ta.crossunder(close, finalST[1]) and trendDirection == 1

plotshape(showSignals and buySignal, title="Buy", style=shape.labelup, location=location.belowbar, color=color.green, textcolor=color.white, text="BUY", size=size.small)
plotshape(showSignals and sellSignal, title="Sell", style=shape.labeldown, location=location.abovebar, color=color.red, textcolor=color.white, text="SELL", size=size.small)

// Background for trend visualization
bgcolor(trendDirection == -1 ? color.new(color.green, 95) : color.new(color.red, 95))

// Alert conditions for phone notifications
alertcondition(enableAlerts and buySignal, title="Forex Buy Alert", message="SuperTrend BUY signal on {{ticker}} - Trend turning up!")
alertcondition(enableAlerts and sellSignal, title="Forex Sell Alert", message="SuperTrend SELL signal on {{ticker}} - Trend turning down!")