// This Pine Script® code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © AI_PIPS

//@version=6
indicator("AIPIPS Session Killzones", overlay=true, max_boxes_count=500)

asian = input.session("0000-0500", "Asian range")
londonKill = input.session("0700-1000", "London killzone")
newyorkKill = input.session("1330-1600", "NY killzone")
showBoxes = input.bool(true, "Draw killzone boxes")

sessionActive(sess) => time(timeframe.period, sess)

var box asianBox = na
var box londonBox = na
var box nyBox = na

fManageBox(active, ref) =>
    if active
        if na(ref)
            ref := box.new(bar_index, low, bar_index, high, bgcolor=color.new(color.blue, 90))
        else
            box.set_right(ref, bar_index)
            box.set_top(ref, math.max(box.get_top(ref), high))
            box.set_bottom(ref, math.min(box.get_bottom(ref), low))
    else if not active and not na(ref)
        box.delete(ref)
        ref := na
    ref

if showBoxes
    asianBox := fManageBox(sessionActive(asian), asianBox)
    londonBox := fManageBox(sessionActive(londonKill), londonBox)
    nyBox := fManageBox(sessionActive(newyorkKill), nyBox)

asianRangeHigh = request.security(syminfo.tickerid, "60", ta.highest(high, 6))
asianRangeLow = request.security(syminfo.tickerid, "60", ta.lowest(low, 6))

sweepAsianHigh = close > asianRangeHigh
sweepAsianLow = close < asianRangeLow

plotshape(sweepAsianHigh, title="Asian High Raid", text="AZH", style=shape.labeldown, color=color.new(color.purple, 0))
plotshape(sweepAsianLow, title="Asian Low Raid", text="AZL", style=shape.labelup, color=color.new(color.purple, 0))

bgcolor(sessionActive(londonKill) ? color.new(color.green, 92) : sessionActive(newyorkKill) ? color.new(color.red, 92) : na)