Ultimate Oscillator - Eterna MCP

//@version=5
strategy("Ultimate Oscillator - Eterna MCP", 
         shorttitle="UO",
         overlay=false,
         default_qty_type=strategy.percent_of_equity,
         default_qty_value=100,
         initial_capital=1000)

// ============================================
// PARAMETERS
// ============================================
length1 = input.int(7, "Fast Length", minval=1)
length2 = input.int(14, "Medium Length", minval=1)
length3 = input.int(28, "Slow Length", minval=1)
overboughtLevel = input.int(70, "Overbought", minval=50, maxval=100)
oversoldLevel = input.int(30, "Oversold", minval=0, maxval=50)
leverageSize = input.float(5.0, "Leverage", minval=1, maxval=100)
positionSize = input.float(0.01, "Position Size", minval=0.001, maxval=1)

// ============================================
// ULTIMATE OSCILLATOR CALCULATION
// ============================================
// Buying pressure
bp = close - math.min(low, close[1])
// True range
tr = math.max(high, close[1]) - math.min(low, close[1])

// Average calculations for three timeframes
avg1 = ta.sum(bp, length1) / ta.sum(tr, length1)
avg2 = ta.sum(bp, length2) / ta.sum(tr, length2)
avg3 = ta.sum(bp, length3) / ta.sum(tr, length3)

// Ultimate Oscillator formula (weighted average)
uo = 100 * ((4 * avg1) + (2 * avg2) + avg3) / (4 + 2 + 1)

// ============================================
// SIGNAL GENERATION
// ============================================
// Oversold reversal
bullishSignal = ta.crossover(uo, oversoldLevel) and uo < 50

// Overbought reversal
bearishSignal = ta.crossunder(uo, overboughtLevel) and uo > 50

// Divergence detection
pivotLength = 5
priceLow = ta.pivotlow(low, pivotLength, pivotLength)
priceHigh = ta.pivothigh(high, pivotLength, pivotLength)
uoLow = ta.pivotlow(uo, pivotLength, pivotLength)
uoHigh = ta.pivothigh(uo, pivotLength, pivotLength)

var float lastPriceLow = na
var float lastUoLow = na
var float lastPriceHigh = na
var float lastUoHigh = na

if not na(priceLow)
    lastPriceLow := priceLow
    lastUoLow := uoLow

if not na(priceHigh)
    lastPriceHigh := priceHigh
    lastUoHigh := uoHigh

// Bullish divergence
bullishDiv = not na(lastUoLow) and not na(lastPriceLow) and 
             low < lastPriceLow and uo > lastUoLow and uo < oversoldLevel

// Bearish divergence
bearishDiv = not na(lastUoHigh) and not na(lastPriceHigh) and 
             high > lastPriceHigh and uo < lastUoHigh and uo > overboughtLevel

// Combined signals
buySignal = bullishSignal or bullishDiv
sellSignal = bearishSignal or bearishDiv

// ============================================
// STRATEGY LOGIC
// ============================================
if buySignal and strategy.position_size == 0
    strategy.entry("Long", strategy.long)
    alert('{"action":"buy","symbol":"' + syminfo.ticker + '","size":' + str.tostring(positionSize) + ',"leverage":' + str.tostring(leverageSize) + '}', alert.freq_once_per_bar_close)

if sellSignal and strategy.position_size == 0
    strategy.entry("Short", strategy.short)
    alert('{"action":"sell","symbol":"' + syminfo.ticker + '","size":' + str.tostring(positionSize) + ',"leverage":' + str.tostring(leverageSize) + '}', alert.freq_once_per_bar_close)

// Exit on opposite signal
if sellSignal and strategy.position_size > 0
    strategy.close("Long")

if buySignal and strategy.position_size < 0
    strategy.close("Short")

// ============================================
// PLOTTING
// ============================================
plot(uo, "Ultimate Oscillator", color=color.blue, linewidth=2)
hline(overboughtLevel, "Overbought", color=color.red, linestyle=hline.style_dashed)
hline(oversoldLevel, "Oversold", color=color.green, linestyle=hline.style_dashed)
hline(50, "Midline", color=color.gray, linestyle=hline.style_dotted)

// Signal shapes
plotshape(buySignal, "Buy", shape.triangleup, location.bottom, color.green, size=size.normal)
plotshape(sellSignal, "Sell", shape.triangledown, location.top, color.red, size=size.normal)

// Divergence markers
plotshape(bullishDiv, "Bullish Div", shape.diamond, location.bottom, color.lime, size=size.small)
plotshape(bearishDiv, "Bearish Div", shape.diamond, location.top, color.orange, size=size.small)

// Background zones
bgcolor(uo > overboughtLevel ? color.new(color.red, 95) : 
        uo < oversoldLevel ? color.new(color.green, 95) : na)