CCI Strategy - Eterna MCP

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

// ============================================
// PARAMETERS
// ============================================
cciLength = input.int(20, "CCI Length", minval=1)
overboughtLevel = input.int(100, "Overbought Level", minval=50)
oversoldLevel = input.int(-100, "Oversold Level", maxval=-50)
extremeOB = input.int(200, "Extreme Overbought", minval=150)
extremeOS = input.int(-200, "Extreme Oversold", maxval=-150)
leverageSize = input.float(5.0, "Leverage", minval=1, maxval=100)
positionSize = input.float(0.01, "Position Size", minval=0.001, maxval=1)

// ============================================
// CCI CALCULATION
// ============================================
cci = ta.cci(close, cciLength)

// ============================================
// SIGNAL GENERATION
// ============================================
// Standard signals: CCI crosses threshold
bullishStandard = ta.crossover(cci, oversoldLevel)
bearishStandard = ta.crossunder(cci, overboughtLevel)

// Extreme reversal: CCI reverses from extreme levels
extremeBullish = cci[1] < extremeOS and cci > extremeOS and cci < oversoldLevel
extremeBearish = cci[1] > extremeOB and cci < extremeOB and cci > overboughtLevel

// Zero-line cross (trend following)
bullishTrend = ta.crossover(cci, 0)
bearishTrend = ta.crossunder(cci, 0)

// Combined signal logic
buySignal = bullishStandard or extremeBullish
sellSignal = bearishStandard or extremeBearish

// ============================================
// 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 or zero cross
if sellSignal and strategy.position_size > 0
    strategy.close("Long")

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

// ============================================
// PLOTTING
// ============================================
plot(cci, "CCI", 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(extremeOB, "Extreme OB", color=color.maroon, linestyle=hline.style_solid)
hline(extremeOS, "Extreme OS", color=color.teal, linestyle=hline.style_solid)
hline(0, "Zero Line", color=color.gray, linestyle=hline.style_dotted)

// Highlight extreme zones
bgcolor(cci > extremeOB ? color.new(color.red, 90) : na)
bgcolor(cci < extremeOS ? color.new(color.green, 90) : na)

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

// Trend indicators
plotshape(bullishTrend, "Bullish Trend", shape.circle, location.bottom, color.lime, size=size.tiny)
plotshape(bearishTrend, "Bearish Trend", shape.circle, location.top, color.orange, size=size.tiny)