Get Double bottom chart patterns Code That Actually Works

//@version=5
indicator("Double Bottom Pattern Detector", shorttitle="DB", overlay=true)

// Input parameters
leftBars = input.int(5, "Pivot Left Bars", minval=1)
rightBars = input.int(5, "Pivot Right Bars", minval=1)
tolerancePct = input.float(0.5, "Price Tolerance %", minval=0.1, maxval=5.0) / 100
minBarsBetween = input.int(10, "Min Bars Between Bottoms", minval=5)
volumeConfirm = input.bool(true, "Require Volume Increase on Second Bottom")
showLabels = input.bool(true, "Show Pattern Labels")

// Pivot low detection
function pivotLow = ta.pivotlow(low, leftBars, rightBars)

// Track potential double bottom
var float firstBottomPrice = na
var int firstBottomIndex = na
var float neckHigh = na

// Detect first bottom
if not na(pivotLow) and na(firstBottomPrice)
    firstBottomPrice := pivotLow
    firstBottomIndex := bar_index[rightBars]

// Detect second bottom
if not na(pivotLow) and not na(firstBottomPrice)
    barsSinceFirst = bar_index[rightBars] - firstBottomIndex
    priceMatch = math.abs(pivotLow - firstBottomPrice) / firstBottomPrice <= tolerancePct
    enoughDistance = barsSinceFirst >= minBarsBetween
    volConfirmOk = not volumeConfirm or (volume[rightBars] > volume[rightBars * 2])
    
    if priceMatch and enoughDistance and volConfirmOk
        // Find neckline high between bottoms
        neckHigh := ta.highest(high, barsSinceFirst)
        
        // Plot double bottom signal
        label.new(bar_index[rightBars], pivotLow, "Double Bottom", style=label.style_label_up, color=color.green, textcolor=color.white, size=size.normal)
        
        // Alert on pattern detection
        alertcondition(true, title="Double Bottom Detected", message="Double Bottom pattern confirmed at " + str.tostring(pivotLow))
        
        // Reset for next pattern
        firstBottomPrice := na
        firstBottomIndex := na
        neckHigh := na

// Plot neckline if available
if not na(neckHigh)
    line.new(firstBottomIndex, neckHigh, bar_index, neckHigh, color=color.blue, width=2, style=line.style_dashed)

// Breakout confirmation: close above neckline after pattern
var bool patternActive = false
if not na(pivotLow) and not na(firstBottomPrice[1]) and not na(neckHigh)
    patternActive := true

if patternActive and close > neckHigh
    plotshape(true, style=shape.triangleup, location=location.belowbar, color=color.lime, size=size.large, title="Breakout")
    alertcondition(true, title="Double Bottom Breakout", message="Double Bottom breakout above neckline at " + str.tostring(close))
    patternActive := false

// Visual aids: plot pivot lows
plotshape(pivotLow, style=shape.circle, location=location.belowbar, color=color.yellow, size=size.tiny, title="Pivot Low")

// Table for status
if barstate.islast
    var table infoTable = table.new(position.top_right, 2, 3, bgcolor=color.white, border_width=1)
    table.cell(infoTable, 0, 0, "First Bottom", text_color=color.black)
    table.cell(infoTable, 1, 0, na(firstBottomPrice) ? "None" : str.tostring(firstBottomPrice, "#.##"), text_color=color.black)
    table.cell(infoTable, 0, 1, "Neckline", text_color=color.black)
    table.cell(infoTable, 1, 1, na(neckHigh) ? "Pending" : str.tostring(neckHigh, "#.##"), text_color=color.black)
    table.cell(infoTable, 0, 2, "Tolerance", text_color=color.black)
    table.cell(infoTable, 1, 2, str.tostring(tolerancePct * 100, "#.1") + "%", text_color=color.black)