//──────────────────────────────────────────────

// INPUTS

//──────────────────────────────────────────────

use_long  = input.bool(true,  "Use Long Settings",  group="Strategy")

use_short = input.bool(true,  "Use Short Settings", group="Strategy")

use_dynamic_mult = input.bool(true, "Use Dynamic Multiplier", group="Dynamic Adaptation")

len_long   = input.int(20, "Long Length",  group="Long Settings")

mult_long  = input.float(1.0, "Long Multiplier",  step=0.1, group="Long Settings")

len_short  = input.int(20, "Short Length", group="Short Settings")

mult_short = input.float(1.0, "Short Multiplier", step=0.1, group="Short Settings")

src = close

//──────────────────────────────────────────────

// Dynamic Multiplier

//──────────────────────────────────────────────

f_dynamic_mult(base_mult, atr_length, use_dynamic) =>

    if use_dynamic

        volatility_factor = ta.atr(atr_length) / ta.atr(atr_length)[20]

        adjusted_mult = base_mult * math.sqrt(volatility_factor)

        math.min(math.max(adjusted_mult, base_mult * 0.5), base_mult * 2)

    else

        base_mult

dynamic_mult_long  = f_dynamic_mult(mult_long,  len_long, use_dynamic_mult)

dynamic_mult_short = f_dynamic_mult(mult_short, len_short, use_dynamic_mult)

//──────────────────────────────────────────────

// ATR Band

//──────────────────────────────────────────────

deltaAtr_long  = dynamic_mult_long  * ta.atr(len_long)

deltaAtr_short = dynamic_mult_short * ta.atr(len_short)

midb_long  = ta.sma(src, len_long)

midb_short = ta.sma(src, len_short)

upperb_long  = midb_long  + deltaAtr_long

lowerb_long  = midb_long  - deltaAtr_long

upperb_short = midb_short + deltaAtr_short

lowerb_short = midb_short - deltaAtr_short

//──────────────────────────────────────────────

// Trend Detection

//──────────────────────────────────────────────

trendUp_long    = close > upperb_long

trendDown_long  = close < lowerb_long

trendUp_short   = close > upperb_short

trendDown_short = close < lowerb_short

//──────────────────────────────────────────────

// Trend State Machine

//──────────────────────────────────────────────

var int trendState = 0

trendState :=

     use_long  and trendUp_long    ?  1 :

     use_long  and trendDown_long  ? -1 :

     use_short and trendUp_short   ?  1 :

     use_short and trendDown_short ? -1 :

     nz(trendState[1], 0)

//──────────────────────────────────────────────

// Signal start detection

//──────────────────────────────────────────────

trend_started = trendState != trendState[1]

long_signal   = trend_started and trendState ==  1

short_signal  = trend_started and trendState == -1

//──────────────────────────────────────────────

// Signal Markers

//──────────────────────────────────────────────

plotshape(long_signal, title="Long Signal", style=shape.labelup, location=location.belowbar, color=color.blue, size=size.small, text="LONG", textcolor = color.white)

plotshape(short_signal, title="Short Signal", style=shape.labeldown, location=location.abovebar, color=color.red, size=size.small, text="SHORT", textcolor = color.white)

//──────────────────────────────────────────────

// ATR Band Visualization

//──────────────────────────────────────────────

// Long Bands

plot(use_long ? midb_long : na, title="Long Mid (Length)", color=color.new(color.blue, 0), linewidth=1, style=plot.style_line)

plot(use_long ? upperb_long : na, title="Long Upper ATR Band", color=color.new(color.blue, 40), linewidth=1, style=plot.style_line)

plot(use_long ? lowerb_long : na, title="Long Lower ATR Band", color=color.new(color.blue, 40), linewidth=1, style=plot.style_line)

// Short Bands

plot(use_short ? midb_short : na, title="Short Mid (Length)", color=color.new(color.red, 0), linewidth=1, style=plot.style_line)

plot(use_short ? upperb_short : na, title="Short Upper ATR Band", color=color.new(color.red, 40), linewidth=1, style=plot.style_line)

plot(use_short ? lowerb_short : na, title="Short Lower ATR Band", color=color.new(color.red, 40), linewidth=1, style=plot.style_line)