Awesome Oscillator - Eterna MCP

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

// ============================================
// PARAMETERS
// ============================================
fastLength = input.int(5, "Fast SMA Length", minval=1)
slowLength = input.int(34, "Slow SMA Length", minval=1)
leverageSize = input.float(5.0, "Leverage", minval=1, maxval=100)
positionSize = input.float(0.01, "Position Size", minval=0.001, maxval=1)

// ============================================
// AWESOME OSCILLATOR CALCULATION
// ============================================
// Median price
medianPrice = (high + low) / 2

// Fast and slow SMAs
fastSMA = ta.sma(medianPrice, fastLength)
slowSMA = ta.sma(medianPrice, slowLength)

// Awesome Oscillator
ao = fastSMA - slowSMA

// ============================================
// SIGNAL GENERATION
// ============================================
// Zero-line cross
bullishZeroCross = ta.crossover(ao, 0)
bearishZeroCross = ta.crossunder(ao, 0)

// Twin Peaks (divergence pattern)
// Bullish Twin Peaks: two lows below zero, second higher than first
twinPeakBullish = ao < 0 and ao > ao[2] and ao[2] < ao[4] and ao > 0[1]

// Bearish Twin Peaks: two highs above zero, second lower than first
twinPeakBearish = ao > 0 and ao < ao[2] and ao[2] > ao[4] and ao < 0[1]

// Saucer pattern (momentum shift)
// Bullish Saucer: three consecutive bars, middle lowest, last green
saucerBullish = ao > 0 and ao < ao[1] and ao[1] < ao[2] and ao > ao[1]

// Bearish Saucer: three consecutive bars, middle highest, last red
saucerBearish = ao < 0 and ao > ao[1] and ao[1] > ao[2] and ao < ao[1]

// Color change (early momentum signal)
aoGreen = ao > ao[1]
aoRed = ao < ao[1]

// Consecutive color bars
consecutiveGreen = aoGreen and aoGreen[1] and ao > 0
consecutiveRed = aoRed and aoRed[1] and ao < 0

// Combined entry signals
buySignal = bullishZeroCross or twinPeakBullish or (saucerBullish and consecutiveGreen)
sellSignal = bearishZeroCross or twinPeakBearish or (saucerBearish and consecutiveRed)

// ============================================
// 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
// ============================================
// Histogram with color coding
aoColor = ao > ao[1] ? color.green : color.red
plot(ao, "Awesome Oscillator", color=aoColor, style=plot.style_histogram, linewidth=3)

// Zero line
hline(0, "Zero Line", color=color.gray, linestyle=hline.style_solid, linewidth=2)

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

// Pattern markers
plotshape(twinPeakBullish, "Twin Peak Buy", shape.diamond, location.bottom, color.aqua, size=size.small)
plotshape(twinPeakBearish, "Twin Peak Sell", shape.diamond, location.top, color.orange, size=size.small)
plotshape(saucerBullish, "Saucer Buy", shape.circle, location.bottom, color.green, size=size.tiny)
plotshape(saucerBearish, "Saucer Sell", shape.circle, location.top, color.maroon, size=size.tiny)

// Background zone
bgcolor(ao > 0 ? color.new(color.green, 98) : color.new(color.red, 98))