//@version=5
strategy("A Sniper Order Flow", overlay=true, initial_capital=1000000, default_qty_type=strategy.fixed, default_qty_value=1, commission_type=strategy.commission.percent, commission_value=0.01, slippage=1, pyramiding=0)

// ─── TDI Inputs ─────────────────────────────────────────────────────────────────
rsiLen    = input.int(13,  "RSI Length",    minval=1, group="TDI")
signalLen = input.int(7,   "Signal Length", minval=1, group="TDI")
rsiSrc    = input.source(close, "RSI Source", group="TDI")

// ─── EMA Inputs ─────────────────────────────────────────────────────────────────
ema8Len   = input.int(8,   "EMA 8 Length",   group="EMAs")
ema14Len  = input.int(14,  "EMA 14 Length",  group="EMAs")
ema50Len  = input.int(50,  "EMA 50 Length",  group="EMAs")
ema200Len = input.int(200, "EMA 200 Length", group="EMAs")

// ─── Exit Inputs (Standardised) ────────────────────────────────────────────────
atrLen  = input.int(14,   "ATR Length",        group="Exits")
slMult  = input.float(3.0, "SL ATR Multiplier", group="Exits", step=0.1)
tpMult  = input.float(6.0, "TP ATR Multiplier", group="Exits", step=0.1)
riskPct = input.float(1.0, "Risk % per Trade",  group="Exits", step=0.1)

// ─── TDI Calculations ─────────────────────────────────────────────────────────
rsiVal     = ta.rma(rsiSrc, rsiLen)
signalLine = ta.rma(rsiVal, signalLen)
bandwidth  = ta.rma(math.abs(rsiVal - signalLine), signalLen)
tdiUpper   = rsiVal + bandwidth
tdiLower   = rsiVal - bandwidth

// ─── EMA Calculations ─────────────────────────────────────────────────────────
ema8   = ta.ema(close, ema8Len)
ema14  = ta.ema(close, ema14Len)
ema50  = ta.ema(close, ema50Len)
ema200 = ta.ema(close, ema200Len)

// ─── ATR for Exits ────────────────────────────────────────────────────────────
exitAtr = ta.atr(atrLen)

// ─── A+ Setup Conditions ──────────────────────────────────────────────────────
// Bullish A+ Setup: TDI RSI crosses above signal + price above 50 EMA + 8>14 EMA
bullishSetup = ta.crossover(rsiVal, signalLine)
             and close > ema50
             and ema8 > ema14

// Bearish A+ Setup: TDI RSI crosses below signal + price below 50 EMA + 8<14 EMA
bearishSetup = ta.crossunder(rsiVal, signalLine)
             and close < ema50
             and ema8 < ema14

// Trend confirmation: price above 200 EMA for longs, below for shorts
bullTrend = close > ema200
bearTrend = close < ema200

// Combined entry signals
longCondition  = bullishSetup and bullTrend and (strategy.position_size == 0)
shortCondition = bearishSetup and bearTrend and (strategy.position_size == 0)

// ─── SL/TP Risk Sizing ────────────────────────────────────────────────────────
sl_distance = math.max(exitAtr * slMult, syminfo.mintick * 10)
qty         = (strategy.equity * (riskPct / 100)) / sl_distance

// ─── Entries ───────────────────────────────────────────────────────────────────
if longCondition
    strategy.entry("Long", strategy.long, qty=qty)

if shortCondition
    strategy.entry("Short", strategy.short, qty=qty)

// ─── ATR-Based Exits ───────────────────────────────────────────────────────────
if strategy.position_size > 0
    if strategy.position_size > 0
        strategy.exit("LX", "Long",  stop=strategy.position_avg_price - slMult*exitAtr, limit=strategy.position_avg_price + tpMult*exitAtr)

    if strategy.position_size < 0
        strategy.exit("SX", "Short", stop=strategy.position_avg_price + slMult*exitAtr, limit=strategy.position_avg_price - tpMult*exitAtr)

// ─── Visual Elements ───────────────────────────────────────────────────────────
plot(ema8,   "EMA 8",   color.orange, linewidth=1)
plot(ema14,  "EMA 14",  color.yellow, linewidth=1)
plot(ema50,  "EMA 50",  color=#00BFFF, linewidth=2)
plot(ema200, "EMA 200", color.red,    linewidth=2)

// TDI RSI line
plot(rsiVal,     "RSI",     color.blue,   linewidth=2)
plot(signalLine, "Signal",  color.orange, linewidth=1, style=plot.style_line)
plot(tdiUpper,   "Upper",   color.gray,   linewidth=1, style=plot.style_line)
plot(tdiLower,   "Lower",   color.gray,   linewidth=1, style=plot.style_line)

// A+ Setup labels on live candle
if barstate.islast
    if bullishSetup and bullTrend
        label.new/bar_index, high, "A+ Long", color=color.green, textcolor=color.white, style=label.style_label_up, size=size.normal
    if bearishSetup and bearTrend
        label.new/bar_index, low, "A+ Short", color=color.red, textcolor=color.white, style=label.style_label_down, size=size.normal