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// This Pine Script® code is subject to the terms of the Mozilla Public License 2.0 at mozilla.org/MPL/2.0/
// © Mistab1009

//version=6
indicator("MistaB SMC Navigation Toolkit", overlay=true, max_boxes_count=200)

// === USER INPUTS ===
extendBars = input.int(250, "Box Extension", group="Order Blocks")
opacity = input.int(75, "Box Opacity", group="Order Blocks")
showMidLine = input.bool(true, "Show Midline", group="Order Blocks")
bullColor = input.color(color.green, "Bullish OB Color", group="Order Blocks")
bearColor = input.color(color.red, "Bearish OB Color", group="Order Blocks")
useFractalSwings = input.bool(true, "Use Fractal Swings for OBs", group="Order Blocks")
useDisplacement = input.bool(true, "Require Displacement Candle", group="Order Blocks")
useHighVol = input.bool(true, "Require High Volume", group="Order Blocks")
obBuffer = input.float(0.0, "OB Buffer (points)", step=0.05, group="Order Blocks")
volLength = input.int(21, "Volume MA Length", group="Order Blocks")
volMultiplier = input.float(1.01, "Volume Multiplier", step=0.01, group="Order Blocks")
displacementMultiplier = input.float(1.0, "Displacement Multiplier", minval=0.5, maxval=1.0, step=0.05, group="Order Blocks")
lineExtendLength = input.int(20, "Structure Line Length", group="Structure")
showOB = input.bool(true, "Show Order Blocks", group="Order Blocks")
showFVG = input.bool(true, "Show Fair Value Gaps", group="FVG")
cleanupDelay = input.int(20, "Cleanup Delay (bars)", minval=1, group="Cleanup Settings")
fastCleanup = input.bool(false, "Fast Cleanup Mode", group="Cleanup Settings")
brokenColor = input.color(color.gray, "Broken OB/FVG Color", group="Cleanup Settings")

// Market Structure dimming
msDimOpacity = input.int(70, "Dimmed Structure/FVG Opacity (HTF mismatch)", minval=0, maxval=100, group="Structure")

// Premium/Discount Zones
showZones = input.bool(true, "Show Premium/Discount Zones", group="Premium/Discount Zones")
premiumColor = input.color(color.red, "Premium Zone Color", group="Premium/Discount Zones")
discountColor = input.color(color.green, "Discount Zone Color", group="Premium/Discount Zones")

// FVG Colors
bullish_fvg_color = input.color(color.new(color.green, 70), "Bullish FVG Color", group="FVG")
bearish_fvg_color = input.color(color.new(color.red, 70), "Bearish FVG Color", group="FVG")

// HTF Confirmation
confirmationTF = input.timeframe("60", "HTF Confirmation TF", group="HTF Confirmation")
requireHTF = input.bool(true, "Require HTF Alignment", group="HTF Confirmation")

// === ARRAYS ===
var box[] bullOBs = array.new_box()
var box[] bearOBs = array.new_box()
var line[] bullLines = array.new_line()
var line[] bearLines = array.new_line()
var int[] brokenTimestampsBull = array.new_int()
var int[] brokenTimestampsBear = array.new_int()

// === FRACTAL LOGIC ===
useFractal = input.string("5", "Fractal Type", options=["None", "3", "5"], group="Structure")
fractalOffset = useFractal == "5" ? 2 : useFractal == "3" ? 1 : na
isSwingHigh = useFractal != "None" and not na(fractalOffset) and high[fractalOffset] > high[fractalOffset + 1] and high[fractalOffset] > high[fractalOffset - 1] and (useFractal != "5" or (high[fractalOffset] > high[fractalOffset + 2] and high[fractalOffset] > high[fractalOffset - 2]))
isSwingLow = useFractal != "None" and not na(fractalOffset) and low[fractalOffset] < low[fractalOffset + 1] and low[fractalOffset] < low[fractalOffset - 1] and (useFractal != "5" or (low[fractalOffset] < low[fractalOffset + 2] and low[fractalOffset] < low[fractalOffset - 2]))

// === OPPOSITE CANDLE FINDER ===
f_findOppositeCandle(_bull) =>
int retIndex = na
float retHigh = na
float retLow = na
for i = 1 to 50
bool isOpp = _bull ? (open > close) : (close > open)
if isOpp
retIndex := bar_index - i
retHigh := high
retLow := low
break
[retIndex, retHigh, retLow]

// === HTF STRUCTURE DETECTION ===
htfTrendUp = request.security(syminfo.tickerid, confirmationTF, close > ta.sma(close, 20))
htfBullOB = request.security(syminfo.tickerid, confirmationTF, isSwingLow)
htfBearOB = request.security(syminfo.tickerid, confirmationTF, isSwingHigh)

// === HTF STATUS LABEL ===
var label htfLabel = na
var string htfTxt = ""
var color htfCol = color.gray
if barstate.islast
if not requireHTF
htfTxt := "HTF: Not Required"
htfCol := color.gray
else
if htfTrendUp
htfTxt := "HTF: Bullish ✅"
htfCol := color.green
else
htfTxt := "HTF: Bearish ✅"
htfCol := color.red
if na(htfLabel)
htfLabel := label.new(bar_index, high, text=htfTxt, style=label.style_label_left, textcolor=color.white, color=htfCol)
else
label.set_xy(htfLabel, bar_index, high)
label.set_text(htfLabel, htfTxt)
label.set_color(htfLabel, htfCol)

// === CLEANUP FUNCTION ===
f_cleanOB(_boxes, _lines, _timestamps, _isBull) =>
sz = array.size(_boxes)
if sz > 0
for i = sz - 1 to 0
b = array.get(_boxes, i)
l = array.get(_lines, i)
top = box.get_top(b)
bottom = box.get_bottom(b)
_broken = _isBull ? (close < bottom) : (close > top)
expired = bar_index - box.get_left(b) > extendBars

if _broken
if fastCleanup
box.delete(b)
if not na(l)
line.delete(l)
array.remove(_boxes, i)
array.remove(_lines, i)
if array.size(_timestamps) > i
array.remove(_timestamps, i)
continue
else
if array.size(_timestamps) <= i
array.push(_timestamps, bar_index)
else
array.set(_timestamps, i, bar_index)
box.set_bgcolor(b, color.new(brokenColor, opacity))
if not na(l)
line.set_color(l, brokenColor)

if expired or (array.size(_timestamps) > i and bar_index - array.get(_timestamps, i) >= cleanupDelay)
box.delete(b)
if not na(l)
line.delete(l)
array.remove(_boxes, i)
array.remove(_lines, i)
if array.size(_timestamps) > i
array.remove(_timestamps, i)

// === OB DETECTION ===
isDisplacementBull = close - open > ta.atr(14) * displacementMultiplier
isDisplacementBear = open - close > ta.atr(14) * displacementMultiplier
isHighVolume = volume > ta.sma(volume, volLength) * volMultiplier

if showOB and isSwingLow and bar_index > fractalOffset + 2
ok = (not useDisplacement or isDisplacementBull) and (not useHighVol or isHighVolume)
htfOK = not requireHTF or (htfTrendUp and htfBullOB)
[idxB, hiB, loB] = f_findOppositeCandle(true)
if ok and htfOK and not na(idxB)
hiB += obBuffer
loB -= obBuffer
array.push(bullOBs, box.new(left=idxB, top=hiB, right=bar_index + extendBars, bottom=loB, bgcolor=color.new(bullColor, opacity), border_color=bullColor, xloc=xloc.bar_index))
array.push(bullLines, showMidLine ? line.new(x1=idxB, y1=(hiB+loB)/2, x2=bar_index + extendBars, y2=(hiB+loB)/2, color=bullColor, style=line.style_dashed, xloc=xloc.bar_index) : na)

if showOB and isSwingHigh and bar_index > fractalOffset + 2
ok = (not useDisplacement or isDisplacementBear) and (not useHighVol or isHighVolume)
htfOK = not requireHTF or (not htfTrendUp and htfBearOB)
[idxS, hiS, loS] = f_findOppositeCandle(false)
if ok and htfOK and not na(idxS)
hiS += obBuffer
loS -= obBuffer
array.push(bearOBs, box.new(left=idxS, top=hiS, right=bar_index + extendBars, bottom=loS, bgcolor=color.new(bearColor, opacity), border_color=bearColor, xloc=xloc.bar_index))
array.push(bearLines, showMidLine ? line.new(x1=idxS, y1=(hiS+loS)/2, x2=bar_index + extendBars, y2=(hiS+loS)/2, color=bearColor, style=line.style_dashed, xloc=xloc.bar_index) : na)

f_cleanOB(bullOBs, bullLines, brokenTimestampsBull, true)
f_cleanOB(bearOBs, bearLines, brokenTimestampsBear, false)

// === MARKET STRUCTURE ===
var float lastHigh = na
var float lastLow = na
var bool trendUp = false
var bool prevTrendUp = false

if useFractal != "None" and bar_index > fractalOffset + 2
if isSwingHigh[1]
swingHigh = high[fractalOffset + 1]
if not na(lastHigh)
prevTrendUp := trendUp
trendUp := swingHigh > lastHigh
colorLine = trendUp ? color.green : color.red
structIsBull = trendUp
htfMatches = not requireHTF or (structIsBull and htfTrendUp) or (not structIsBull and not htfTrendUp)
colorUsed = htfMatches ? colorLine : color.new(colorLine, msDimOpacity)
txt = trendUp ? (prevTrendUp ? "HH BoS" : "HH CHoCH") : (prevTrendUp ? "LH CHoCH" : "LH BoS")
label.new(bar_index - fractalOffset - 1, swingHigh, text=txt, style=label.style_label_down, color=colorUsed, textcolor=color.white, size=size.small)
line.new(x1=bar_index - fractalOffset - 1, y1=swingHigh, x2=bar_index - fractalOffset - 1 + lineExtendLength, y2=swingHigh, color=colorUsed, width=1, xloc=xloc.bar_index)
lastHigh := swingHigh

if isSwingLow[1]
swingLow = low[fractalOffset + 1]
if not na(lastLow)
prevTrendUp := trendUp
trendUp := swingLow > lastLow
colorLine = trendUp ? color.green : color.red
structIsBull = trendUp
htfMatches = not requireHTF or (structIsBull and htfTrendUp) or (not structIsBull and not htfTrendUp)
colorUsed = htfMatches ? colorLine : color.new(colorLine, msDimOpacity)
txt = trendUp ? (prevTrendUp ? "HL BoS" : "HL CHoCH") : (prevTrendUp ? "LL CHoCH" : "LL BoS")
label.new(bar_index - fractalOffset - 1, swingLow, text=txt, style=label.style_label_up, color=colorUsed, textcolor=color.white, size=size.small)
line.new(x1=bar_index - fractalOffset - 1, y1=swingLow, x2=bar_index - fractalOffset - 1 + lineExtendLength, y2=swingLow, color=colorUsed, width=1, xloc=xloc.bar_index)
lastLow := swingLow

// === FVG LOGIC ===
var box[] bullish_fvg_boxes = array.new_box()
var label[] bullish_labels = array.new_label()
var box[] bearish_fvg_boxes = array.new_box()
var label[] bearish_labels = array.new_label()
var int[] bullFvgTimestamps = array.new_int()
var int[] bearFvgTimestamps = array.new_int()

if showFVG and bar_index >= 2
if low > high[2] // Bullish FVG
htfMatches = not requireHTF or htfTrendUp
colorUsed = htfMatches ? bullish_fvg_color : color.new(bullish_fvg_color, msDimOpacity)
b = box.new(left=bar_index - 2, top=low, right=bar_index, bottom=high[2], bgcolor=colorUsed, border_color=na, extend=extend.right, xloc=xloc.bar_index)
array.push(bullish_fvg_boxes, b)
l = label.new(x=bar_index + 20, y=(low + high[2]) / 2, text="FVG", style=label.style_label_left, color=na, textcolor=color.green, xloc=xloc.bar_index)
array.push(bullish_labels, l)

if high < low[2] // Bearish FVG
htfMatches = not requireHTF or not htfTrendUp
colorUsed = htfMatches ? bearish_fvg_color : color.new(bearish_fvg_color, msDimOpacity)
b = box.new(left=bar_index - 2, top=low[2], right=bar_index, bottom=high, bgcolor=colorUsed, border_color=na, extend=extend.right, xloc=xloc.bar_index)
array.push(bearish_fvg_boxes, b)
l = label.new(x=bar_index + 20, y=(low[2] + high) / 2, text="FVG", style=label.style_label_left, color=na, textcolor=color.red, xloc=xloc.bar_index)
array.push(bearish_labels, l)

// === FVG Cleanup ===
f_cleanFVG(_boxes, _labels, _timestamps, _isBull) =>
sz = array.size(_boxes)
if sz > 0
for j = sz - 1 to 0
b = array.get(_boxes, j)
l = array.get(_labels, j)
bool filled = _isBull ? (bar_index > (box.get_left(b) + 1) and close < box.get_bottom(b)) : (bar_index > (box.get_left(b) + 1) and close > box.get_top(b))
if filled
if fastCleanup
box.delete(b)
label.delete(l)
array.remove(_boxes, j)
array.remove(_labels, j)
if array.size(_timestamps) > j
array.remove(_timestamps, j)
continue
if array.size(_timestamps) <= j
array.push(_timestamps, bar_index)
box.set_bgcolor(b, color.new(brokenColor, opacity))
label.set_textcolor(l, brokenColor)
if array.size(_timestamps) > j and bar_index - array.get(_timestamps, j) >= cleanupDelay
box.delete(b)
label.delete(l)
array.remove(_boxes, j)
array.remove(_labels, j)
array.remove(_timestamps, j)

f_cleanFVG(bullish_fvg_boxes, bullish_labels, bullFvgTimestamps, true)
f_cleanFVG(bearish_fvg_boxes, bearish_labels, bearFvgTimestamps, false)

// === PREMIUM / DISCOUNT ZONES ===
var box premBox = na
var box discBox = na
mid = (lastHigh + lastLow) / 2
if showZones and not na(mid) and not na(lastHigh) and not na(lastLow)
if not na(premBox)
box.delete(premBox)
if not na(discBox)
box.delete(discBox)
premBox := box.new(left=bar_index - 10, right=bar_index, top=lastHigh, bottom=mid, bgcolor=color.new(premiumColor, 85), border_color=na, xloc=xloc.bar_index)
discBox := box.new(left=bar_index - 10, right=bar_index, top=mid, bottom=lastLow, bgcolor=color.new(discountColor, 85), border_color=na, xloc=xloc.bar_index)