Smart Money Concepts (SMC) & Market Structure Suite

//@version=5
indicator("FxSnip - Smart Money Concepts (SMC) Suite [v5]", "FxSnip SMC Suite", overlay=true, max_boxes_count=500, max_lines_count=500)

// Inputs
swingLength = input.int(5, "Swing Length (Left/Right Bars)", minval=1)
showBOS     = input.bool(true, "Show Break of Structure (BOS)")
showCHoCH   = input.bool(true, "Show Change of Character (CHoCH)")
bullColor   = input.color(color.green, "Bullish Color")
bearColor   = input.color(color.red, "Bearish Color")

// Swing Highs & Lows
var float upperSwing = na
var float lowerSwing = na
var int lastTrend = 0 // 1: Bullish, -1: Bearish

pH = ta.pivothigh(high, swingLength, swingLength)
pL = ta.pivotlow(low, swingLength, swingLength)

if not na(pH)
    upperSwing := pH

if not na(pL)
    lowerSwing := pL

// Detect Structure Breaks
if not na(upperSwing) and ta.crossover(close, upperSwing)
    if lastTrend == -1 and showCHoCH
        line.new(bar_index - swingLength, upperSwing, bar_index, upperSwing, color=bullColor, width=2, style=line.style_dashed)
        label.new(bar_index, upperSwing, "CHoCH", color=bullColor, textcolor=color.white, style=label.style_label_down, size=size.small)
        lastTrend := 1
    else if showBOS
        line.new(bar_index - swingLength, upperSwing, bar_index, upperSwing, color=bullColor, width=1)
        label.new(bar_index, upperSwing, "BOS", color=bullColor, textcolor=color.white, style=label.style_label_down, size=size.tiny)
        lastTrend := 1
    upperSwing := na

if not na(lowerSwing) and ta.crossunder(close, lowerSwing)
    if lastTrend == 1 and showCHoCH
        line.new(bar_index - swingLength, lowerSwing, bar_index, lowerSwing, color=bearColor, width=2, style=line.style_dashed)
        label.new(bar_index, lowerSwing, "CHoCH", color=bearColor, textcolor=color.white, style=label.style_label_up, size=size.small)
        lastTrend := -1
    else if showBOS
        line.new(bar_index - swingLength, lowerSwing, bar_index, lowerSwing, color=bearColor, width=1)
        label.new(bar_index, lowerSwing, "BOS", color=bearColor, textcolor=color.white, style=label.style_label_up, size=size.tiny)
        lastTrend := -1
    lowerSwing := na

// Alert conditions
alertcondition(ta.crossover(close, upperSwing), "Bullish Structure Break", "Bullish BOS/CHoCH Detected")
alertcondition(ta.crossunder(close, lowerSwing), "Bearish Structure Break", "Bearish BOS/CHoCH Detected")