Simple Trend + Signal (No Bug)

//version=5
indicator("Simple Trend + Signal (No Bug)", overlay=true)

// === INPUTS ===
fastEMA = input.int(20, "Fast EMA")
slowEMA = input.int(50, "Slow EMA")
lookback = input.int(20, "Zone Lookback")

// === TREND ===
emaFast = ta.ema(close, fastEMA)
emaSlow = ta.ema(close, slowEMA)

trendUp = emaFast > emaSlow
trendDown = emaFast < emaSlow

// === ZONES ===
highestHigh = ta.highest(high, lookback)
lowestLow = ta.lowest(low, lookback)

// === SIGNALS ===
buySignal = trendUp and close <= emaFast
sellSignal = trendDown and close >= emaFast

// === PLOTS ===
plot(emaFast, color=color.green, linewidth=2)
plot(emaSlow, color=color.red, linewidth=2)

plot(highestHigh, color=color.new(color.blue, 70))
plot(lowestLow, color=color.new(color.orange, 70))

plotshape(buySignal, title="BUY", location=location.belowbar, color=color.green, style=shape.labelup, text="BUY")
plotshape(sellSignal, title="SELL", location=location.abovebar, color=color.red, style=shape.labeldown, text="SELL")