XAUUSD 1H Confirmed Trend

//@version=6
indicator("XAUUSD 1H Confirmed Trend", overlay=true)

// Trend filter
trendLength = input.int(50, "Trend EMA Length", minval=5)
trendEma = ta.ema(close, trendLength)
trendSlope = trendEma - trendEma[3]
isUptrend = trendSlope > 0
isDowntrend = trendSlope < 0

plot(trendEma, "Trend EMA", color=isUptrend ? color.new(color.teal, 0) : color.new(color.maroon, 0), linewidth=2)

// Momentum confirmation
[macdLine, signalLine, _] = ta.macd(close, 12, 26, 9)
momentumBullish = macdLine > signalLine and macdLine > 0
momentumBearish = macdLine < signalLine and macdLine < 0

// Volatility filter
atrLength = input.int(14, "ATR Length", minval=1)
atrValue = ta.atr(atrLength)
minVolatility = input.float(0.5, "Minimum ATR Multiple to Trade", minval=0.1)
volatilityOk = atrValue > ta.sma(atrValue, 50) * minVolatility

// Edge-triggered entry events prevent repeated markers on every trend bar
longSetup = isUptrend and momentumBullish and volatilityOk
shortSetup = isDowntrend and momentumBearish and volatilityOk
longCondition = longSetup and not longSetup[1]
shortCondition = shortSetup and not shortSetup[1]

plotshape(longCondition, title="Long Signal", location=location.belowbar, style=shape.triangleup, color=color.new(color.teal, 0), size=size.small)
plotshape(shortCondition, title="Short Signal", location=location.abovebar, style=shape.triangledown, color=color.new(color.maroon, 0), size=size.small)

// Invalidation levels
stopAtrMultiple = input.float(1.5, "Stop Distance (ATR multiples)", minval=0.5)
var float longStopLevel = na
var float shortStopLevel = na
if longCondition
    longStopLevel := close - (atrValue * stopAtrMultiple)
    shortStopLevel := na
if shortCondition
    shortStopLevel := close + (atrValue * stopAtrMultiple)
    longStopLevel := na

plot(longStopLevel, "Long Invalidation", color=color.new(color.red, 40), style=plot.style_linebr)
plot(shortStopLevel, "Short Invalidation", color=color.new(color.red, 40), style=plot.style_linebr)

// Alerts
alertcondition(longCondition, title="Long Signal", message="Long signal on {{ticker}} at {{close}}")
alertcondition(shortCondition, title="Short Signal", message="Short signal on {{ticker}} at {{close}}")