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[massiddiqi]

// @Version=5
indicator("UNIVERSAL - Enhanced", overlay=true, max_lines_count=500, max_boxes_count=500)

// === Inputs for user customization ===
// ... [Your original inputs] ...

// === CORE CALCULATIONS (Must come first!) ===
// ATR for size filter & dynamic width - MOVED TO TOP
atr = ta.atr(14)

// EMA 200 (Red)
ema200 = ta.ema(close, 200)
plot(ema200, title="EMA 200", color=color.rgb(255, 0, 0), linewidth=2)

// VWAP (Black, Daily Reset)
var float vwapsum = 0.0
var float volumesum = 0.0
startDay = request.security(syminfo.tickerid, "D", time)
newSession = ta.change(startDay) != 0
vwapsum := newSession ? hl2 * volume : nz(vwapsum[1]) + hl2 * volume
volumesum := newSession ? volume : nz(volumesum[1]) + volume
myvwap = volumesum != 0 ? vwapsum / volumesum : na
plot(myvwap, title="VWAP", color=color.rgb(0, 0, 0), linewidth=2)

// === NEW INPUTS for Head & Wick Logic ===
showHeadWickSignals = input.bool(true, "◎ Show Head & Wick Signals")
wickMinStrength = input.float(1.5, "Wick-to-Body Min Ratio", minval=1.0, maxval=3.0, step=0.1)
confirmationMinStrength = input.float(0.5, "Confirmation Candle Min Size (ATR)", minval=0.3, maxval=1.5, step=0.1)

// === HEAD & WICK CONFIRMATION DETECTION ===
// STEP 1: IDENTIFY THE SETUP CANDLE (The Wick)
lowerWickSize = math.min(open, close) - low
bodySizeSetup = math.abs(close - open)
hasStrongWick = (lowerWickSize >= bodySizeSetup * wickMinStrength) and (lowerWickSize > 0)

// STEP 2: IDENTIFY THE CONFIRMATION CANDLE (The Head)
confirmationBodySize = close - open
confirmationBodySizeAbsolute = math.abs(confirmationBodySize)
isStrongBullishCandle = close > open and
confirmationBodySizeAbsolute > (atr * confirmationMinStrength) and
(high - close) < (confirmationBodySizeAbsolute * 0.33)

// STEP 3: COMBINE THE SIGNALS
headWickBuySignal = hasStrongWick[1] and isStrongBullishCandle

// === PLOT THE HIGH-PROBABILITY SIGNAL ===
plotshape(showHeadWickSignals and headWickBuySignal,
title="Head & Wick Buy",
location=location.belowbar,
color=color.rgb(0, 200, 0),
style=shape.labelup,
size=size.normal,
text="HEAD\nWICK",
textcolor=color.white)

bgcolor(showHeadWickSignals and headWickBuySignal ? color.new(color.green, 90) : na)
alertcondition(showHeadWickSignals and headWickBuySignal, title="Head & Wick Buy Alert", message="Head & Wick Buy signal detected!")

// === NOW CONTINUE WITH YOUR ORIGINAL CODE ===
// Engulfing candles 4-color logic (now can use 'atr' safely)
bullEngulfGreen = open[1] > close[1] and close > open and close >= open[1] and open <= close[1] and (close - open) > (open[1] - close[1]) and (close - open) > atr * 0.5
bullEngulfMagenta = open[1] > close[1] and close > open and close >= open[1] and open <= close[1] and (close - open) > (open[1] - close[1]) and (close - open) <= atr * 0.5
bearEngulfBlack = close[1] > open[1] and open > close and open >= close[1] and close <= open[1] and (open - close) > (close[1] - open[1]) and (open - close) > atr * 0.5
bearEngulfGrey = close[1] > open[1] and open > close and open >= close[1] and close <= open[1] and (open - close) > (close[1] - open[1]) and (open - close) <= atr * 0.5

// ... [The rest of your original code: Bar colors, Strong Candle, BO Signals, Liquidity Raids, Boxes, etc.] ...