"""
Analyze Match v2 — the per-match multi-market value board + disciplined pick.
===========================================================================
Answers "for ONE match, show every bet type's probability + model signal +
market-vs-model value, and pick the right bet." Leak-free models.

KEY HONEST RULE (proven by multi_market_edge.py): compute & SHOW value for all
markets, but only MS (1X2) carries real, fold-consistent model edge. In OU/HT/
BTTS the market is efficient — a big model-vs-market gap there is the MODEL'S
ERROR, not value. So non-MS rows are INFO-ONLY; only an MS value bet in the
favourite band is STAKED.

Demo: trains all market models on the first 85% of history, then prints the full
board for sample matches in the unseen last 15% (with what actually happened).

Usage:
  python scripts/analyze_match_v2.py --n 6
  python scripts/analyze_match_v2.py --match <match_id>
"""
from __future__ import annotations
import argparse, os, sys
import numpy as np, pandas as pd, xgboost as xgb

if sys.stdout and hasattr(sys.stdout, "reconfigure"):
    try: sys.stdout.reconfigure(encoding="utf-8")
    except Exception: pass

AI_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
CSV = os.path.join(AI_DIR, "data", "training_data_v27.csv")
META = {"match_id","home_team_id","away_team_id","league_id","mst_utc",
        "score_home","score_away","ht_score_home","ht_score_away"}
LEAKY = {"home_goals_form","away_goals_form","total_goals","ht_total_goals",
         "squad_diff","home_squad_quality","away_squad_quality",
         "referee_home_bias","referee_avg_goals"}
STAKE_LO, STAKE_HI = 1.5, 2.4   # MS favourite band that staking is allowed in
STAKE_MARGIN = 0.03

def ou(line):   return lambda sh,sa,hh,ha: (0 if (sh+sa) > line else 1)
def htou(line): return lambda sh,sa,hh,ha: (None if np.isnan(hh) else (0 if (hh+ha) > line else 1))
MARKETS = {
  "MS":      ("multi", ["odds_ms_h","odds_ms_d","odds_ms_a"], ["1","X","2"],
              lambda sh,sa,hh,ha: 0 if sh>sa else (1 if sh==sa else 2)),
  "OU25":    ("binary",["odds_ou25_o","odds_ou25_u"], ["2.5Üst","2.5Alt"], ou(2.5)),
  "OU15":    ("binary",["odds_ou15_o","odds_ou15_u"], ["1.5Üst","1.5Alt"], ou(1.5)),
  "OU35":    ("binary",["odds_ou35_o","odds_ou35_u"], ["3.5Üst","3.5Alt"], ou(3.5)),
  "BTTS":    ("binary",["odds_btts_y","odds_btts_n"], ["KG Var","KG Yok"],
              lambda sh,sa,hh,ha: 0 if (sh>0 and sa>0) else 1),
  "HT":      ("multi", ["odds_ht_ms_h","odds_ht_ms_d","odds_ht_ms_a"], ["İY1","İYX","İY2"],
              lambda sh,sa,hh,ha: None if np.isnan(hh) else (0 if hh>ha else (1 if hh==ha else 2))),
  "HT_OU15": ("binary",["odds_ht_ou15_o","odds_ht_ou15_u"], ["İY1.5Üst","İY1.5Alt"], htou(1.5)),
}
STAKED_MARKETS = {"MS"}   # only these are bet; rest are info-only
PM = {"objective":"multi:softprob","num_class":3,"max_depth":5,"eta":0.05,"subsample":0.8,"colsample_bytree":0.8,"tree_method":"hist","verbosity":0}
PB = {"objective":"binary:logistic","max_depth":5,"eta":0.05,"subsample":0.8,"colsample_bytree":0.8,"tree_method":"hist","verbosity":0}


def main():
    ap = argparse.ArgumentParser(description=__doc__)
    ap.add_argument("--n", type=int, default=6, help="how many sample matches")
    ap.add_argument("--match", help="specific match_id")
    ap.add_argument("--estimators", type=int, default=250)
    args = ap.parse_args()

    df = pd.read_csv(CSV, low_memory=False).sort_values("mst_utc").reset_index(drop=True)
    sh = pd.to_numeric(df["score_home"],errors="coerce"); sa = pd.to_numeric(df["score_away"],errors="coerce")
    ok = sh.notna()&sa.notna(); df = df[ok].reset_index(drop=True)
    SH=sh[ok.values].values.astype(float); SA=sa[ok.values].values.astype(float)
    HH=pd.to_numeric(df["ht_score_home"],errors="coerce").values.astype(float)
    HA=pd.to_numeric(df["ht_score_away"],errors="coerce").values.astype(float)
    feats=[c for c in df.columns if c not in META and not c.startswith("label_") and c not in LEAKY]
    X=df[feats].apply(pd.to_numeric,errors="coerce").fillna(0.0).values
    N=len(df); cut=int(N*0.85)
    print(f"Training {len(MARKETS)} leak-free market models on {cut:,} matches ...")

    models={}
    for m,(kind,ocols,picks,tfn) in MARKETS.items():
        if not all(c in df.columns for c in ocols): continue
        truth=np.array([tfn(SH[i],SA[i],HH[i],HA[i]) for i in range(cut)],dtype=object)
        valid=np.array([v is not None for v in truth])
        if kind=="multi":
            b=xgb.train(PM,xgb.DMatrix(X[:cut][valid],label=truth[valid].astype(int)),num_boost_round=args.estimators)
        else:
            b=xgb.train(PB,xgb.DMatrix(X[:cut][valid],label=(truth[valid].astype(int)==0).astype(int)),num_boost_round=args.estimators)
        models[m]=(kind,ocols,picks,tfn,b)

    # choose matches from holdout
    hold = df.iloc[cut:].reset_index(drop=True)
    if args.match:
        sel_idx = df.index[df["match_id"].astype(str)==str(args.match)].tolist()
        rows = [(i,) for i in sel_idx]
        base = df
    else:
        pick_pos = np.linspace(0, len(hold)-1, args.n, dtype=int)
        rows = [(cut+p,) for p in pick_pos]
        base = df

    for (gi,) in rows:
        r = base.iloc[gi]
        xrow = X[gi:gi+1]
        sh_,sa_,hh_,ha_ = SH[gi],SA[gi],HH[gi],HA[gi]
        ht = f"{int(hh_)}-{int(ha_)}" if not np.isnan(hh_) else "?"
        print("\n"+"="*72)
        print(f"MATCH {r['match_id']}  | elo H{r.get('home_overall_elo','?'):.0f} vs A{r.get('away_overall_elo','?'):.0f}"
              f"  | ACTUAL {int(sh_)}-{int(sa_)} (HT {ht})")
        print(f"  {'market':<8}{'pick':<10}{'model%':>8}{'impl%':>7}{'edge':>7}{'odds':>7}  flag   result")
        print("  "+"-"*64)
        best_ms=None
        for m,(kind,ocols,picks,tfn,b) in models.items():
            if kind=="multi":
                P=b.predict(xgb.DMatrix(xrow))[0]
            else:
                p=float(b.predict(xgb.DMatrix(xrow))[0]); P=np.array([p,1-p])
            O=pd.to_numeric(r[ocols],errors="coerce").fillna(0.0).values
            truth=tfn(sh_,sa_,hh_,ha_)
            for k in range(len(picks)):
                o=O[k]
                if o<=1.0: continue
                imp=1.0/o; edge=P[k]-imp
                res = "—" if truth is None else ("WON" if truth==k else "lost")
                staked = (m in STAKED_MARKETS) and edge>STAKE_MARGIN and STAKE_LO<=o<STAKE_HI
                flag = "★BET" if staked else ("val" if edge>STAKE_MARGIN else "")
                print(f"  {m:<8}{picks[k]:<10}{100*P[k]:>7.1f}{100*imp:>7.1f}{100*edge:>+7.1f}{o:>7.2f}  {flag:<5} {res}")
                if staked and (best_ms is None or edge>best_ms[0]):
                    best_ms=(edge,m,picks[k],o,res)
        print("  "+"-"*64)
        if best_ms:
            e,m,p,o,res = best_ms
            print(f"  >>> STAKE: {m} {p} @ {o:.2f}  (edge +{100*e:.1f}%, favourite band)  -> {res}")
        else:
            print(f"  >>> NO STAKE: no MS value in favourite band. (Other markets info-only —")
            print(f"      their 'value' is model error in efficient markets; do NOT chase it.)")
    print("\nNOTE: only MS staked (proven edge). All markets shown for transparency.")
    print("Forward-validate with CLV before real money. Static CSV odds may overstate edge.")


if __name__ == "__main__":
    main()