Get Best swing trade indicators Code That Actually Works

//@version=5
indicator("Swing Trade High/Low Detector", shorttitle="Swing HL", overlay=true)

// Input parameters
leftBars = input.int(5, title="Left Bars for Pivot", minval=1)
rightBars = input.int(5, title="Right Bars for Pivot", minval=1)
maxBarsBack = input.int(500, title="Max Bars Back", minval=100)
showSwings = input.bool(true, title="Show Swing Points")
swingStrength = input.int(3, title="Min Swing Strength %", minval=1) / 100
useAlerts = input.bool(true, title="Enable Alerts")

// Colors
bullColor = input.color(color.new(color.green, 0), title="Bull Swing Color")
bearColor = input.color(color.new(color.red, 0), title="Bear Swing Color")

// Detect swing highs and lows using pivot functions
swingHigh = ta.pivothigh(high, leftBars, rightBars)
swingLow = ta.pivotlow(low, leftBars, rightBars)

// Filter swings by strength (percentage change from recent swing)
var float lastSwingHigh = na
var float lastSwingLow = na

if not na(swingHigh)
    if na(lastSwingHigh) or (swingHigh - lastSwingHigh) / lastSwingHigh >= swingStrength
        lastSwingHigh := swingHigh

if not na(swingLow)
    if na(lastSwingLow) or (lastSwingLow - swingLow) / lastSwingLow >= swingStrength
        lastSwingLow := swingLow

// Plot swing highs
plotshape(showSwings and not na(swingHigh) and (na(lastSwingHigh[1]) or swingHigh >= lastSwingHigh[1] * (1 + swingStrength)), 
          title="Swing High", location=location.abovebar, color=bearColor, style=shape.triangledown, size=size.normal)

// Plot swing lows
plotshape(showSwings and not na(swingLow) and (na(lastSwingLow[1]) or swingLow <= lastSwingLow[1] * (1 - swingStrength)), 
          title="Swing Low", location=location.belowbar, color=bullColor, style=shape.triangleup, size=size.normal)

// Connect swings with lines for better visualization
var line lastHighLine = na
var line lastLowLine = na

if not na(swingHigh) and showSwings
    if not na(lastHighLine)
        line.delete(lastHighLine)
    lastHighLine := line.new(bar_index[rightBars], swingHigh, bar_index, swingHigh, color=bearColor, width=2, style=line.style_dashed)

if not na(swingLow) and showSwings
    if not na(lastLowLine)
        line.delete(lastLowLine)
    lastLowLine := line.new(bar_index[rightBars], swingLow, bar_index, swingLow, color=bullColor, width=2, style=line.style_dashed)

// Alerts
alertcondition(not na(swingHigh), title="New Swing High", message="Swing High detected at {{close}} - Potential short setup")
alertcondition(not na(swingLow), title="New Swing Low", message="Swing Low detected at {{close}} - Potential long setup")

// Table for info (optional)
if barstate.islast
    var table infoTable = table.new(position.top_right, 2, 3, bgcolor=color.white, border_width=1)
    table.cell(infoTable, 0, 0, "Left Bars", text_color=color.black)
    table.cell(infoTable, 1, 0, str.tostring(leftBars), text_color=color.black)
    table.cell(infoTable, 0, 1, "Right Bars", text_color=color.black)
    table.cell(infoTable, 1, 1, str.tostring(rightBars), text_color=color.black)
    table.cell(infoTable, 0, 2, "Strength", text_color=color.black)
    table.cell(infoTable, 1, 2, str.tostring(swingStrength * 100) + "%", text_color=color.black)