//@version=6
strategy("Aggressive Bear Market Short Strategy - V6 Improved", overlay=true, initial_capital=10000, currency=currency.USD, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// === INPUTS ===
// Trend Confirmation: SMA
smaPeriod = input.int(title="SMA Period", defval=50, minval=1)

// RSI Inputs
rsiPeriod = input.int(title="RSI Period", defval=14, minval=1)
rsiAggThreshold = input.int(title="Aggressive RSI Threshold", defval=60, minval=1, maxval=100)

// MACD Inputs
macdFast    = input.int(title="MACD Fast Length", defval=12, minval=1)
macdSlow    = input.int(title="MACD Slow Length", defval=26, minval=1)
macdSignalL = input.int(title="MACD Signal Length", defval=9, minval=1)

// Bollinger Bands Inputs
bbLength = input.int(title="Bollinger Bands Length", defval=20, minval=1)
bbStdDev = input.float(title="BB StdDev Multiplier", defval=2.0, step=0.1)

// Stochastic Inputs
stochLength = input.int(title="Stochastic %K Length", defval=14, minval=1)
stochSmooth = input.int(title="Stochastic %D Smoothing", defval=3, minval=1)
stochAggThreshold = input.int(title="Aggressive Stochastic Threshold", defval=75, minval=1, maxval=100)

// ADX Inputs (Manual Calculation)
adxPeriod = input.int(title="ADX Period", defval=14, minval=1)
adxAggThreshold = input.float(title="Aggressive ADX Threshold", defval=20.0, step=0.1)

// Risk Management Inputs
stopLossPercent   = input.float(title="Stop Loss (%)", defval=0.5, step=0.1)
takeProfitPercent = input.float(title="Take Profit (%)", defval=1.0, step=0.1)

// Trailing Stop Option
useTrailingStop = input.bool(title="Use Trailing Stop", defval=true)
trailStopPercent = input.float(title="Trailing Stop (%)", defval=0.5, step=0.1)
trailOffset = useTrailingStop ? trailStopPercent / 100 * close : na


// === INDICATOR CALCULATIONS ===
// 1. SMA for trend confirmation.
smaValue = ta.sma(close, smaPeriod)
// 2. RSI measurement.
rsiValue = ta.rsi(close, rsiPeriod)
// 3. MACD Calculation.
[macdLine, signalLine, _] = ta.macd(close, macdFast, macdSlow, macdSignalL)
// 4. Bollinger Bands Calculation.
bbBasis = ta.sma(close, bbLength)
bbDev = bbStdDev * ta.stdev(close, bbLength)
bbUpper = bbBasis + bbDev
bbLower = bbBasis - bbDev
// 5. Stochastic Oscillator.
k = ta.stoch(close, high, low, stochLength)
d = ta.sma(k, stochSmooth)
// 6. Manual ADX Calculation (using Wilder’s smoothing):
prevClose = nz(close[1], close)
tr = math.max(high - low, math.max(math.abs(high - prevClose), math.abs(low - prevClose)))
upMove   = high - nz(high[1])
downMove = nz(low[1]) - low
plusDM  = (upMove > downMove and upMove > 0) ? upMove : 0
minusDM = (downMove > upMove and downMove > 0) ? downMove : 0
atr = ta.rma(tr, adxPeriod)
smPlusDM = ta.rma(plusDM, adxPeriod)
smMinusDM = ta.rma(minusDM, adxPeriod)
plusDI = 100 * (smPlusDM / atr)
minusDI = 100 * (smMinusDM / atr)
dx = 100 * math.abs(plusDI - minusDI) / (plusDI + minusDI)
adxValue = ta.rma(dx, adxPeriod)


// === AGGRESSIVE SIGNAL CONDITIONS ===
// Mandatory Bearish Trend Condition: Price must be below the SMA.
bearTrend = close < smaValue

// MACD Condition: Enter if MACD is below its signal line.
macdSignalFlag = macdLine < signalLine

// RSI Condition: Enter if RSI is above the aggressive threshold.
rsiSignalFlag = rsiValue > rsiAggThreshold

// Bollinger Bands Condition: Enter if price is above the upper band (overextended rally).
bbSignalFlag = close > bbUpper

// Stochastic Condition: Trigger if %K crosses under the aggressive threshold.
stochSignalFlag = ta.crossunder(k, stochAggThreshold)

// ADX Condition: Confirm that trend strength is above the threshold.
adxSignalFlag = adxValue > adxAggThreshold

// Count the number of indicator signals present.
signalCount = (macdSignalFlag ? 1 : 0) +
              (rsiSignalFlag ? 1 : 0) +
              (bbSignalFlag ? 1 : 0) +
              (stochSignalFlag ? 1 : 0) +
              (adxSignalFlag ? 1 : 0)

// Require the bearish trend plus at least 3 indicator signals before entering.
entryCondition = bearTrend and (signalCount >= 3)

if entryCondition
    strategy.entry("Short", strategy.short)


// === EXIT CONDITIONS ===
// For open short positions, set a defined stop loss and take profit.
// The stop loss is placed above the entry price, and the take profit is below.
// If enabled, a trailing stop is added.
if strategy.position_size < 0
    entryPrice = strategy.position_avg_price
    stopPrice = entryPrice * (1 + stopLossPercent / 100)
    targetPrice = entryPrice * (1 - takeProfitPercent / 100)
    strategy.exit("Exit Short", from_entry="Short", stop=stopPrice, limit=targetPrice, trail_offset=trailOffset)


// === PLOTTING ===
plot(smaValue, color=color.orange, title="SMA")
plot(bbUpper, color=color.blue, title="Bollinger Upper")
plot(bbBasis, color=color.gray, title="Bollinger Basis")
plot(bbLower, color=color.blue, title="Bollinger Lower")
plot(adxValue, title="ADX", color=color.fuchsia)
plot(rsiValue, title="RSI", color=color.purple)
hline(rsiAggThreshold, title="Aggressive RSI Threshold", color=color.red)