Fast Scalping Volume Confirmation (v2)

//version=5
indicator("Fast Scalping Volume Confirmation (v2)", overlay=true)

// ---------- INPUTS ----------
maLength = input.int(5, "Volume MA Length", minval=1)
multiplier = input.float(1.5, "Volume Multiplier (Trigger Above MA)", minval=0.1, step=0.1)
usePriceFilter = input.bool(true, "Enable Entry Price Range Filter")
priceMin = input.float(184.5, "Price Min (if filter on)")
priceMax = input.float(185.2, "Price Max (if filter on)")

// ---------- CALCS ----------
volMA = ta.sma(volume, maLength)
highVolume = volume > volMA * multiplier

// Simple reversal detection (non-exhaustive)
bullishEngulfing = (close > open[1]) and (open < close[1]) and (close > open)
hammer = (close > open) and ((high - low) > 3 * math.abs(open - close)) and ((close - low) / (high - low) > 0.6)

// ensure candle is closed to avoid repainting
confirmedBar = barstate.isconfirmed

// price filter
inPriceRange = not usePriceFilter or (close >= priceMin and close <= priceMax)

// final entry condition (only on closed bar)
entrySignal = confirmedBar and inPriceRange and highVolume and (bullishEngulfing or hammer)

// ---------- PLOTTING ----------
plotshape(entrySignal, title="Entry Confirmation", location=location.belowbar,
color=color.new(color.green, 0), style=shape.triangleup, size=size.small, text="ENTRY")

// show volume MA in the volume pane for reference (optional visual)
// We draw a small label on chart with current volume vs MA
var label volLab = na
if barstate.islast
label.delete(volLab)
volText = "Vol: " + str.tostring(volume) + " MA(" + str.tostring(maLength) + "): " + str.tostring(math.round(volMA))
volLab := label.new(x=bar_index, y=low, text=volText, yloc=yloc.belowbar, style=label.style_label_left, color=color.new(color.gray,85), textcolor=color.white)

// ---------- ALERT ----------
alertcondition(entrySignal, title="Entry Confirmed", message="✅ Entry confirmed: High Volume + Reversal Candle")