XAUUSD BOS + Retest Looser Bot

//version=5
indicator("SMC Map — BOS/CHoCH + PD + Liquidity + Killzones", overlay=true)

// === CONFIG ===
pd_tf = input.timeframe("240", "HTF for PD array")
show_killzone = input.bool(true, "Show Killzones")

// === HTF SWINGS ===
htf_high = request.security(syminfo.tickerid, pd_tf, high)
htf_low = request.security(syminfo.tickerid, pd_tf, low)
pd_mid = (htf_high + htf_low) / 2

// Plot PD midline
plot(pd_mid, title="PD 50%", color=color.gray, linewidth=2)

// === SWING STRUCTURE ===
var float swing_high = na
var float swing_low = na

is_swing_high = ta.highest(high, 3) == high and close < high
is_swing_low = ta.lowest(low, 3) == low and close > low

if (is_swing_high)
swing_high := high
if (is_swing_low)
swing_low := low

// === BOS / CHoCH ===
bos_up = not na(swing_high) and close > swing_high
bos_down = not na(swing_low) and close < swing_low

var int structure_dir = 0 // 0=neutral, 1=up, -1=down
choch_up = false
choch_down = false

if (bos_up)
choch_up := structure_dir == -1
structure_dir := 1

if (bos_down)
choch_down := structure_dir == 1
structure_dir := -1

// === PLOTS ===
plotshape(bos_up, title="BOS UP", style=shape.triangleup, location=location.belowbar, color=color.green, size=size.small)
plotshape(bos_down, title="BOS DOWN", style=shape.triangledown, location=location.abovebar, color=color.red, size=size.small)
plotshape(choch_up, title="CHOCH UP", style=shape.labelup, location=location.belowbar, color=color.lime, size=size.tiny, text="CHOCH")
plotshape(choch_down, title="CHOCH DOWN", style=shape.labeldown, location=location.abovebar, color=color.maroon, size=size.tiny, text="CHOCH")

plot(swing_high, title="Swing High Liquidity", color=color.new(color.green, 50), style=plot.style_cross, linewidth=1)
plot(swing_low, title="Swing Low Liquidity", color=color.new(color.red, 50), style=plot.style_cross, linewidth=1)

// === KILLZONE ===
in_london = (hour >= 6 and hour < 11)
in_ny = (hour >= 12 and hour < 18)

bgcolor(show_killzone and in_london ? color.new(color.green, 90) : na)
bgcolor(show_killzone and in_ny ? color.new(color.blue, 90) : na)