//@version=5
strategy("Trade with Pat - Liquidity Sweep Strategy", overlay=true, initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// --- Inputs ---
lookbackInput     = input.int(20, title="S/R Lookback Period", minval=5)
emaPeriodInput    = input.int(200, title="Trend Filter EMA Period", minval=10)
rrRatioInput      = input.float(1.5, title="Risk-to-Reward Ratio", minval=0.5, step=0.1)
bufferTicksInput  = input.int(10, title="Stop Loss Buffer (Ticks/Pipettes)", minval=0)

// --- Indicator Calculations ---
emaVal = ta.ema(close, emaPeriodInput)

// Support & Resistance levels based on historical lookback (excluding current candle)
resistanceLevel = ta.highest(high, lookbackInput)[1]
supportLevel    = ta.lowest(low, lookbackInput)[1]

// --- Strategy Rules ---
// 1. Long Sweep: Low goes below the support level, but the candle closes back above the support level.
//    To align with the trend, the close must also be above the EMA.
longSweep = (low < supportLevel) and (close > supportLevel) and (close > emaVal)

// 2. Short Sweep: High goes above the resistance level, but the candle closes back below the resistance level.
//    To align with the trend, the close must also be below the EMA.
shortSweep = (high > resistanceLevel) and (close < resistanceLevel) and (close < emaVal)

// --- Plotting ---
plot(emaVal, title="EMA Trend Filter", color=color.blue, linewidth=2)
plot(resistanceLevel, title="Resistance Level", color=color.red, style=plot.style_circles, offset=-1)
plot(supportLevel, title="Support Level", color=color.green, style=plot.style_circles, offset=-1)

// --- Execution & Risk Management ---
var float longStopLoss = na
var float longTakeProfit = na
var float shortStopLoss = na
var float shortTakeProfit = na

tickValue = syminfo.mintick

// Handle Buy (Long) Setup
if (longSweep and strategy.position_size == 0)
    longStopLoss := low - (bufferTicksInput * tickValue)
    riskDistance = close - longStopLoss
    longTakeProfit := close + (riskDistance * rrRatioInput)
    strategy.entry("Long Sweep", strategy.long)
    strategy.exit("Exit Long", "Long Sweep", stop=longStopLoss, limit=longTakeProfit)

// Handle Sell (Short) Setup
if (shortSweep and strategy.position_size == 0)
    shortStopLoss := high + (bufferTicksInput * tickValue)
    riskDistance = shortStopLoss - close
    shortTakeProfit := close - (riskDistance * rrRatioInput)
    strategy.entry("Short Sweep", strategy.short)
    strategy.exit("Exit Short", "Short Sweep", stop=shortStopLoss, limit=shortTakeProfit)

// Clean up plotting values
plotshape(longSweep and strategy.position_size == 0, title="Long Entry Signal", style=shape.triangleup, location=location.belowbar, color=color.green, size=size.small)
plotshape(shortSweep and strategy.position_size == 0, title="Short Entry Signal", style=shape.triangledown, location=location.abovebar, color=color.red, size=size.small)