Stoch Strategy [trugurpala]

//@version=6
// Stochastic Cross + EMA Filter — Pine Script v6
// github.com/trugurpala/pinescriptv6 — Author: Ugur Pala
//
// NOT: ta.stoch() v6'da sadece K değerini döndürür (float).
// D için K'nın SMA'sını al.
// NOTE: ta.stoch() returns only K (float) in v6. D = SMA of K.
strategy("Stoch Strategy [trugurpala]",
    overlay           = true,
    initial_capital   = 10000,
    default_qty_type  = strategy.percent_of_equity,
    default_qty_value = 10,
    commission_type   = strategy.commission.percent,
    commission_value  = 0.1)

// ── Inputs ───────────────────────────────────────────────────────────────────
int   stochLen = input.int(14, "Stoch Length", minval=1)
int   kSmooth  = input.int(3,  "K Smooth",     minval=1)
int   dSmooth  = input.int(3,  "D Smooth",     minval=1)
float obLevel  = input.float(80, "OB", minval=60, maxval=95)
float osLevel  = input.float(20, "OS", minval=5,  maxval=40)
int   emaLen   = input.int(200, "Filter EMA",  minval=1)
int   atrLen   = input.int(14,  "ATR Length",  minval=1)
float slMult   = input.float(1.5, "SL Mult",   step=0.1)
float tpMult   = input.float(2.5, "TP Mult",   step=0.1)

// ── Calculations ─────────────────────────────────────────────────────────────
// v6: ta.stoch() sadece K döndürür / returns only K
float rawK   = ta.stoch(high, low, close, stochLen)
float k      = ta.sma(rawK, kSmooth)   // K düzleştirme / K smoothing
float d      = ta.sma(k, dSmooth)      // D = K'nın SMA'sı / D = SMA of K
float emaVal = ta.ema(close, emaLen)
float atrVal = ta.atr(atrLen)

bool  longEntry  = ta.crossover(k, d)  and k < osLevel and close > emaVal
bool  shortEntry = ta.crossunder(k, d) and k > obLevel and close < emaVal

// ── Entries ──────────────────────────────────────────────────────────────────
if longEntry
    strategy.entry("Long", strategy.long)
    strategy.exit("Long Exit", "Long",
        stop  = close - slMult * atrVal,
        limit = close + tpMult * atrVal)

if shortEntry
    strategy.entry("Short", strategy.short)
    strategy.exit("Short Exit", "Short",
        stop  = close + slMult * atrVal,
        limit = close - tpMult * atrVal)

// ── Visuals ──────────────────────────────────────────────────────────────────
plot(emaVal, "EMA Filter", color.new(color.orange, 20), linewidth=2)
plotshape(longEntry,  "Long",  shape.triangleup,   location.belowbar, color.green, size=size.normal)
plotshape(shortEntry, "Short", shape.triangledown, location.abovebar, color.red,   size=size.normal)