Get Trading using support and resistance Code That Actually Works

//@version=5
indicator("Support & Resistance Levels", shorttitle="S/R Levels", overlay=true, max_lines_count=100, max_labels_count=50)

// Input parameters
pivotLen = input.int(10, "Pivot Length", minval=2, maxval=50)
maxLevels = input.int(5, "Max S/R Levels", minval=1, maxval=20)
showLabels = input.bool(true, "Show Level Labels")
lineWidth = input.int(2, "Line Width", minval=1, maxval=5)
extendLines = input.bool(true, "Extend Lines to Right")

// Colors
supColor = input.color(color.new(color.green, 20), "Support Color")
resColor = input.color(color.new(color.red, 20), "Resistance Color")

// Detect pivot highs and lows
pivotHigh = ta.pivothigh(high, pivotLen, pivotLen)
pivotLow = ta.pivotlow(low, pivotLen, pivotLen)

// Arrays to manage lines and labels
var line[] resLines = array.new<line>()
var line[] supLines = array.new<line>()
var label[] resLabels = array.new<label>()
var label[] supLabels = array.new<label>()

// Function to add resistance level
addResistance(price) =>
    if extendLines
        newLine = line.new(bar_index[pivotLen], price, bar_index + 50, price, color=resColor, width=lineWidth, extend=extend.right)
    else
        newLine = line.new(bar_index[pivotLen], price, bar_index, price, color=resColor, width=lineWidth)
    array.push(resLines, newLine)
    if showLabels
        newLabel = label.new(bar_index, price, "R: " + str.tostring(price, "#.##"), color=color.new(resColor, 50), textcolor=resColor, style=label.style_label_left)
        array.push(resLabels, newLabel)
    // Limit levels
    if array.size(resLines) > maxLevels
        oldLine = array.shift(resLines)
        line.delete(oldLine)
        if showLabels
            oldLabel = array.shift(resLabels)
            label.delete(oldLabel)

// Function to add support level
addSupport(price) =>
    if extendLines
        newLine = line.new(bar_index[pivotLen], price, bar_index + 50, price, color=supColor, width=lineWidth, extend=extend.right)
    else
        newLine = line.new(bar_index[pivotLen], price, bar_index, price, color=supColor, width=lineWidth)
    array.push(supLines, newLine)
    if showLabels
        newLabel = label.new(bar_index, price, "S: " + str.tostring(price, "#.##"), color=color.new(supColor, 50), textcolor=supColor, style=label.style_label_left)
        array.push(supLabels, newLabel)
    // Limit levels
    if array.size(supLines) > maxLevels
        oldLine = array.shift(supLines)
        line.delete(oldLine)
        if showLabels
            oldLabel = array.shift(supLabels)
            label.delete(oldLabel)

// Plot new levels
if not na(pivotHigh)
    addResistance(pivotHigh)
if not na(pivotLow)
    addSupport(pivotLow)

// Alerts
alertcondition(ta.crossover(close, pivotHigh[1]), title="Price Breaks Resistance", message="Price broke above resistance at {{plot_0}}")
alertcondition(ta.crossunder(close, pivotLow[1]), title="Price Breaks Support", message="Price broke below support at {{plot_0}}")

// Plot current levels for alerts reference
plot(pivotHigh, color=color.new(color.red, 100), display=display.none)
plot(pivotLow, color=color.new(color.green, 100), display=display.none)