//@version=6
indicator("Workshop 05 Swing Diary", overlay=true)
wing = input.int(2, "Bars on each side", minval=1)
peak = ta.pivothigh(high, wing, wing)
valley = ta.pivotlow(low, wing, wing)
newHigh = not na(peak) and barstate.isconfirmed
newLow = not na(valley) and barstate.isconfirmed
var float lastHigh = na
var float lastLow = na
if newHigh
    lastHigh := peak
if newLow
    lastLow := valley
plot(lastHigh, "Known high", color=color.gray,
    style=plot.style_stepline)
plot(lastLow, "Known low", color=color.blue,
    style=plot.style_stepline)
plotshape(newHigh, "High confirmed now", shape.circle,
    location.abovebar, color=color.gray, size=size.tiny)
plotshape(newLow, "Low confirmed now", shape.circle,
    location.belowbar, color=color.blue, size=size.tiny)