Convert a Tradingview Gaussian Channel indicator to MT5

Below is a simplified Tradingview Gaussian Channel indicator, with an extra band
Note: Source is (H + L + C)/3

Please Convert this indicator to MT5 indicator

Maintain the same styling and input fields, feel free to test in Tradingview to see indicator in action
Final indicator should perform the same as in Tradingview.

THANKS!

//@version=6
indicator("GC [ + RANGE]", shorttitle="GC [+ RANGE]", overlay=true)

// === INPUTS ===
src     = input.source(hlc3, "Source")
N       = input.int(4, "Poles", minval=1, maxval=9)
per     = input.int(144, "Sampling Period", minval=2)
mult    = input.float(1.414, "Filtered True Range Multiplier", minval=0)
modeLag = input.bool(true, "Reduced Lag Mode")
modeFast= input.bool(false, "Fast Response Mode")

// === EXTRA BAND INPUT ===
extraMult = input.float(2.0, "Extra Band Multiplier", minval=0)

// === BETA/ALPHA CALC ===
beta  = (1 - math.cos(4 * math.asin(1) / per)) / (math.pow(1.414, 2 / N) - 1)
alpha = -beta + math.sqrt(beta * beta + 2 * beta)
lag   = (per - 1) / (2 * N)

// === LAG-COMPENSATED SERIES ===
srcdata = modeLag ? src + (src - src[lag]) : src
trdata  = modeLag ? ta.tr(true) + (ta.tr(true) - ta.tr(true)[lag]) : ta.tr(true)

// === RECURSIVE GAUSSIAN FILTER ===
var float filtSrc = na
var float filtTr  = na
filtSrc := N == 1 ? alpha * srcdata + (1 - alpha) * nz(filtSrc[1]) : N == 2 ? math.pow(alpha, 2) * srcdata + 2 * (1 - alpha) * nz(filtSrc[1]) - math.pow(1 - alpha, 2) * nz(filtSrc[2]) : N == 3 ? math.pow(alpha, 3) * srcdata + 3 * (1 - alpha) * nz(filtSrc[1]) - 3 * math.pow(1 - alpha, 2) * nz(filtSrc[2]) + math.pow(1 - alpha, 3) * nz(filtSrc[3]) : N == 4 ? math.pow(alpha, 4) * srcdata + 4 * (1 - alpha) * nz(filtSrc[1]) - 6 * math.pow(1 - alpha, 2) * nz(filtSrc[2]) + 4 * math.pow(1 - alpha, 3) * nz(filtSrc[3]) - math.pow(1 - alpha, 4) * nz(filtSrc[4]) : N == 5 ? math.pow(alpha, 5) * srcdata + 5 * (1 - alpha) * nz(filtSrc[1]) - 10 * math.pow(1 - alpha, 2) * nz(filtSrc[2]) + 10 * math.pow(1 - alpha, 3) * nz(filtSrc[3]) - 5 * math.pow(1 - alpha, 4) * nz(filtSrc[4]) + math.pow(1 - alpha, 5) * nz(filtSrc[5]) : srcdata

filtTr := N == 1 ? alpha * trdata + (1 - alpha) * nz(filtTr[1]) : N == 2 ? math.pow(alpha, 2) * trdata + 2 * (1 - alpha) * nz(filtTr[1]) - math.pow(1 - alpha, 2) * nz(filtTr[2]) : N == 3 ? math.pow(alpha, 3) * trdata + 3 * (1 - alpha) * nz(filtTr[1]) - 3 * math.pow(1 - alpha, 2) * nz(filtTr[2]) + math.pow(1 - alpha, 3) * nz(filtTr[3]) : N == 4 ? math.pow(alpha, 4) * trdata + 4 * (1 - alpha) * nz(filtTr[1]) - 6 * math.pow(1 - alpha, 2) * nz(filtTr[2]) + 4 * math.pow(1 - alpha, 3) * nz(filtTr[3]) - math.pow(1 - alpha, 4) * nz(filtTr[4]) : N == 5 ? math.pow(alpha, 5) * trdata + 5 * (1 - alpha) * nz(filtTr[1]) - 10 * math.pow(1 - alpha, 2) * nz(filtTr[2]) + 10 * math.pow(1 - alpha, 3) * nz(filtTr[3]) - 5 * math.pow(1 - alpha, 4) * nz(filtTr[4]) + math.pow(1 - alpha, 5) * nz(filtTr[5]) : trdata

// === FAST MODE ===
filtSrc1 = nz(filtSrc[1])
filtTr1  = nz(filtTr[1])
filt     = modeFast ? (filtSrc + filtSrc1) / 2 : filtSrc
filttr   = modeFast ? (filtTr + filtTr1) / 2 : filtTr

// === BANDS ===
hband = filt + filttr * mult
lband = filt - filttr * mult

// === EXTRA OUTER BANDS ===
hbandExtra = filt + filttr * mult * extraMult
lbandExtra = filt - filttr * mult * extraMult

// === PLOTS ===
plot(filt, title="Filter", color=filt > filt[1] ? color.rgb(10, 255, 104, 75) : filt < filt[1] ? color.rgb(255, 10, 92, 75) : #cccccc, linewidth=1)
uph = plot(hband, title="High Band", color=filt > filt[1] ? color.rgb(10, 255, 104, 50) : filt < filt[1] ? color.rgb(255, 10, 92, 50) : #cccccc)
upl = plot(lband, title="Low Band", color=filt > filt[1] ? color.rgb(10, 255, 104, 50) : filt < filt[1] ? color.rgb(255, 10, 92, 50) : #cccccc)

// === PLOT EXTRA BANDS ===
plot(hbandExtra, title="Extra High Band", color=color.new(color.gray, 70), linewidth=1, style=plot.style_line)
plot(lbandExtra, title="Extra Low Band", color=color.new(color.gray, 70), linewidth=1, style=plot.style_line)