#!/usr/bin/env python3
"""Auto-Flip-Close (User-Taktik-Kern, 2026-07-16): Position im PLUS automatisch
schließen, sobald die Empfehlung auf die GEGENRICHTUNG dreht (heute nur Alarm).
Sequentielle Trade-Sim (EINE Position wie live): Entry bei Signal, Exit via
SL 2,0×ATR + Trailing 1,5 + BE 1,3 (Basis) — Varianten zusätzlich mit Flip-Close
(nur im Plus; optional Mindestgewinn in ×ATR ~ der '3%-Margin'-Idee; Referenz:
Flip auch im Minus). Signale aus der echten `_build`-Logik (M30-Filter +
H1-Konfluenz + Winkel, hour=None = gate-frei). Kosten = Bar-Spread/ATR.
2 Halbjahre. R = Profit/ATR.

Entscheidung: Auto-Flip-Close nur bauen, wenn ØR & ΣR in BEIDEN Hälften ≥ Basis.
"""
import sys, bisect
import MetaTrader5 as mt5
from core.analysis import calc_trend_angle
from core.wave_rec import (WaveRecommender, _atr, _ema_last, _ema_series,
                           _EMA_FAST, _EMA_SLOW, _N_BARS, _HTF_DEADBAND, _ANGLE_LR)
_MAXH = 288; _ATRMIN = 0.12


def _atr_series(H, L, C, p=14):
    t = [0.0]
    for i in range(1, len(C)):
        t.append(max(H[i]-L[i], abs(H[i]-C[i-1]), abs(L[i]-C[i-1])))
    return [(sum(t[max(1, i-p+1):i+1])/max(1, len(t[max(1, i-p+1):i+1]))) if i else None
            for i in range(len(C))]


def st(Rs):
    if not Rs: return None
    n = len(Rs); w = sum(1 for x in Rs if x > 0); s = sum(Rs)
    up = sum(x for x in Rs if x > 0); dn = -sum(x for x in Rs if x < 0)
    return dict(n=n, wr=100*w/n, oR=s/n, pf=(up/dn if dn > 0 else 99.9),
                sum=s, worst=min(Rs))


def line(lbl, s):
    if not s: return f"    {lbl:<34} —"
    return (f"    {lbl:<34} n={s['n']:>4} WR={s['wr']:>3.0f}% ØR={s['oR']:+.3f} "
            f"PF={s['pf']:>4.2f} ΣR={s['sum']:>+6.0f} Worst={s['worst']:+.1f}")


def run_seq(sig, H, L, C, A, SP, lo, hi, flip=False, min_r=0.0, flip_neg=False):
    """Sequentielle Sim: eine Position, Entry bei Signal, Exit SL/Trail/(Flip)."""
    def cost(i, atr): return (SP[i] if SP[i] > 0 else 0.0225)/atr
    Rs = []
    i = lo
    while i < hi:
        d = sig[i]
        if d == 0:
            i += 1; continue
        atr = max(A[i] or 0, _ATRMIN)
        entry = C[i]
        eff = entry - d*2.0*atr; hw = entry
        end = min(i+_MAXH, len(C)-1); exit_px = C[end]; exit_j = end
        for j in range(i+1, end+1):
            hi_, lo_ = H[j], L[j]
            if (lo_ <= eff) if d > 0 else (hi_ >= eff):
                exit_px = eff; exit_j = j; break
            hw = max(hw, hi_) if d > 0 else min(hw, lo_)
            prof = (C[j]-entry)*d
            # Flip-Close: Signal dreht auf Gegenrichtung → Close zum Bar-Close
            if flip and sig[j] == -d and (flip_neg or prof > min_r*atr):
                exit_px = C[j]; exit_j = j; break
            if prof >= 0.3*atr:
                cand = hw - d*1.5*atr
                if prof >= 1.3*atr:
                    cand = max(cand, entry) if d > 0 else min(cand, entry)
                eff = max(eff, cand) if d > 0 else min(eff, cand)
        Rs.append((exit_px-entry)*d/atr - cost(i, atr))
        i = exit_j + 1
    return Rs


def main():
    n = int(sys.argv[1]) if len(sys.argv) > 1 else 80000
    mt5.initialize()
    sym = next((c for c in ("SpotCrude", "USOIL", "WTI", "XTIUSD") if mt5.symbol_info(c)), None)
    bars = mt5.copy_rates_from_pos(sym, mt5.TIMEFRAME_M5, 0, n+_N_BARS+_MAXH+5)
    m30 = mt5.copy_rates_from_pos(sym, mt5.TIMEFRAME_M30, 0, n//6+500)
    h1  = mt5.copy_rates_from_pos(sym, mt5.TIMEFRAME_H1, 0, n//12+500)
    si = mt5.symbol_info(sym); point = si.point
    mt5.shutdown()
    T = [int(b["time"]) for b in bars]; H = [float(b["high"]) for b in bars]
    L = [float(b["low"]) for b in bars]; C = [float(b["close"]) for b in bars]
    SP = [float(b["spread"])*point for b in bars]
    A = _atr_series(H, L, C)

    def series(rr):
        t = [int(b["time"]) for b in rr]; c = [float(b["close"]) for b in rr]
        hh = [float(b["high"]) for b in rr]; ll = [float(b["low"]) for b in rr]
        return t, _ema_series(c, _EMA_FAST), _ema_series(c, _EMA_SLOW), _atr_series(hh, ll, c)
    mT, mEf, mEs, mA = series(m30)
    hT, hEf, hEs, hA = series(h1)

    def tf_sign(tt, ef, es, aa, ts):
        k = bisect.bisect_right(tt, ts)-1
        if k < _EMA_SLOW or aa[k] is None or aa[k] <= 0: return 0
        dd = ef[k]-es[k]
        return 0 if abs(dd) < _HTF_DEADBAND*aa[k] else (1 if dd > 0 else -1)

    w = WaveRecommender(type("T", (), {"snapshot": lambda s: {"intervals": {}}})(), mt5.TIMEFRAME_M5)
    sig = [0]*len(C)
    for i in range(_N_BARS, len(C)-1):
        wc = C[i-_N_BARS:i]; wh = H[i-_N_BARS:i]; wl = L[i-_N_BARS:i]
        atr = _atr(wh, wl, wc)
        if not atr or atr <= 0: continue
        ef = _ema_last(wc, _EMA_FAST); es = _ema_last(wc, _EMA_SLOW)
        a5 = calc_trend_angle(C[i-_ANGLE_LR-2:i], _ANGLE_LR)
        rec, _ = w._build(ef, es, C[i-1], atr, "M5", 0,
                          htf_trend=tf_sign(mT, mEf, mEs, mA, T[i]),
                          h1_trend=tf_sign(hT, hEf, hEs, hA, T[i]), angle=a5)
        s_ = rec["signal"]
        sig[i] = 1 if s_ == "LONG" else -1 if s_ == "SHORT" else 0
    mid = len(C)//2

    print("="*92)
    print(f"  Auto-Flip-Close — {sym} M5 (sequentielle 1-Positions-Sim · Exit live · Echtkosten)")
    print(f"  Flip = Signal dreht auf Gegenrichtung → Close zum Bar-Close (heute nur Alarm)")
    print("="*92)
    for lbl, lo, hi_ in (("H1 (alt)", _N_BARS, mid), ("H2 (neu)", mid, len(C)-_MAXH-1)):
        print(f"\n{lbl}:")
        print(line("BASIS (nur SL/Trailing)", st(run_seq(sig, H, L, C, A, SP, lo, hi_))))
        print(line("+ Flip-Close im Plus (minR=0)", st(run_seq(sig, H, L, C, A, SP, lo, hi_, flip=True))))
        print(line("+ Flip-Close ab +0.3xATR", st(run_seq(sig, H, L, C, A, SP, lo, hi_, flip=True, min_r=0.3))))
        print(line("+ Flip-Close ab +0.5xATR", st(run_seq(sig, H, L, C, A, SP, lo, hi_, flip=True, min_r=0.5))))
        print(line("+ Flip-Close IMMER (auch Minus)", st(run_seq(sig, H, L, C, A, SP, lo, hi_, flip=True, flip_neg=True))))
    print(f"\n  Bauen nur, wenn eine Flip-Variante in BEIDEN Hälften ØR & ΣR ≥ BASIS hält.")

if __name__ == "__main__":
    main()