//@version=5
strategy("Ultimate Bitcoin Scalping Strategy", overlay=true, initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=100)

// Inputs
emaFastLen = input.int(9, title="Fast EMA Length")
emaSlowLen = input.int(20, title="Slow EMA Length")
lookbackBars = input.int(20, title="Support/Resistance Lookback Bars")
riskRewardRatio = input.float(2.0, title="Risk-to-Reward Ratio")

// Indicators
emaFast = ta.ema(close, emaFastLen)
emaSlow = ta.ema(close, emaSlowLen)

// Plotting EMAs
plot(emaFast, color=color.blue, title="9 EMA")
plot(emaSlow, color=color.red, title="20 EMA")

// Support & Resistance Logic using recent high/low
resistanceLevel = ta.highest(high, lookbackBars)
supportLevel = ta.lowest(low, lookbackBars)

// Crossover Conditions
bullishCross = ta.crossover(emaFast, emaSlow)
bearishCross = ta.crossunder(emaFast, emaSlow)

// Proximity to S&P levels (Price near Support/Resistance)
isNearSupport = (low <= supportLevel * 1.005)
isNearResistance = (high >= resistanceLevel * 0.995)

// Strategy Conditions
longCondition = bullishCross and isNearSupport
shortCondition = bearishCross and isNearResistance

// Execution
float longStopLoss = na
float longTakeProfit = na
float shortStopLoss = na
float shortTakeProfit = na

if (longCondition)
    longStopLoss := low - (ta.atr(14) * 0.5)
    longTakeProfit := close + ((close - longStopLoss) * riskRewardRatio)
    strategy.entry("Long", strategy.long)

if (shortCondition)
    shortStopLoss := high + (ta.atr(14) * 0.5)
    shortTakeProfit := close - ((shortStopLoss - close) * riskRewardRatio)
    strategy.entry("Short", strategy.short)

// Exit management
if (strategy.position_size > 0)
    strategy.exit("Exit Long", "Long", stop=longStopLoss, limit=longTakeProfit)

if (strategy.position_size < 0)
    strategy.exit("Exit Short", "Short", stop=shortStopLoss, limit=shortTakeProfit)