Weekend Range Monday Breakout Strategy for Crypto

//@version=5
strategy("Weekend Range Monday Breakout [Crypto]", overlay=true, initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// Inputs
sessionStart = input.time(timestamp("2023-01-01 08:00:+0000"), "Session Start (UTC)")
sessionEnd = input.time(timestamp("2023-01-01 14:30:+0000"), "Session End (UTC)")
useAtrSl = input.bool(true, "Use ATR for Stop Loss (False = Midpoint)")
atrMultiplier = input.float(1.5, "ATR Multiplier")
volThreshold = input.float(1.5, "Volume Multiplier Threshold")

// Weekend Range Calculation
isWeekend = (dayofweek == dayofweek.saturday) or (dayofweek == dayofweek.sunday)
var float wkndHigh = na
var float wkndLow = na

if isWeekend
    if not isWeekend[1]
        wkndHigh := high
        wkndLow := low
    else
        wkndHigh := math.max(wkndHigh, high)
        wkndLow := math.min(wkndLow, low)

// Monday Session Filter
isMondayBreakoutTime = (dayofweek == dayofweek.monday) and (time >= sessionEnd - 21600000 and time <= sessionEnd)

// Volume Check
volMa = ta.sma(volume, 20)
isHighVolume = volume > (volMa * volThreshold)

// Breakout Triggers
bullBreakout = isMondayBreakoutTime and ta.crossover(close, wkndHigh) and isHighVolume
bearBreakout = isMondayBreakoutTime and ta.crossunder(close, wkndLow) and isHighVolume

// Risk Management levels
atr = ta.atr(14)
midpoint = (wkndHigh + wkndLow) / 2

longSl = useAtrSl ? close - (atr * atrMultiplier) : math.max(midpoint, close - (atr * atrMultiplier))
shortSl = useAtrSl ? close + (atr * atrMultiplier) : math.min(midpoint, close + (atr * atrMultiplier))

// Strategy Execution
if strategy.position_size == 0 and bullBreakout
    strategy.entry("Long", strategy.long)
    strategy.exit("Exit Long", "Long", stop=longSl, limit=close + ((close - longSl) * 1.5))

if strategy.position_size == 0 and bearBreakout
    strategy.entry("Short", strategy.short)
    strategy.exit("Exit Short", "Short", stop=shortSl, limit=close - ((shortSl - close) * 1.5))

// Plotting
plot(wkndHigh, "Weekend High", color=color.green, linewidth=2)
plot(wkndLow, "Weekend Low", color=color.red, linewidth=2)
plot(ta.ema(close, 20), "20 EMA", color=color.blue)