"""中控只读聚合：OKX 期权持仓 / 资金 / 本地统计。"""

from __future__ import annotations

from typing import Any

from lib.instance.instance_embed_context_lib import profit_loss_ratio_from_averages
from lib.options.options_db import init_options_tables


def _compute_options_stats(get_db) -> dict[str, Any]:
    conn = get_db()
    try:
        init_options_tables(conn)
        rows = conn.execute(
            """
            SELECT realized_pnl FROM options_trades
            WHERE status = 'closed' AND realized_pnl IS NOT NULL
            """
        ).fetchall()
    finally:
        conn.close()
    wins: list[float] = []
    losses: list[float] = []
    for row in rows:
        pnl = float(row["realized_pnl"])
        if pnl > 0:
            wins.append(pnl)
        elif pnl < 0:
            losses.append(pnl)
    total_closed = len(wins) + len(losses)
    win_rate = round(len(wins) / total_closed * 100, 2) if total_closed else 0
    avg_win = sum(wins) / len(wins) if wins else None
    avg_loss = sum(losses) / len(losses) if losses else None
    return {
        "total_closed": total_closed,
        "win_rate": win_rate,
        "profit_loss_ratio": profit_loss_ratio_from_averages(avg_win, avg_loss),
        "total_profit": round(sum(wins), 4) if wins else 0.0,
        "total_loss": round(abs(sum(losses)), 4) if losses else 0.0,
    }


def build_options_hub_snapshot(cfg: dict[str, Any]) -> dict[str, Any]:
    if not cfg.get("enabled"):
        return {"ok": True, "enabled": False}
    ex = cfg.get("exchange_options")
    ready_fn = cfg.get("options_api_ready")
    if not callable(ready_fn):
        return {"ok": False, "enabled": True, "msg": "期权模块未就绪"}
    ok, reason = ready_fn(ex)
    if not ok:
        return {"ok": False, "enabled": True, "msg": reason or "期权 API 未配置"}
    try:
        raw = cfg["fetch_option_positions"](ex)
        positions = [cfg["format_position_row"](p) for p in raw]
        upl_total = 0.0
        has_upl = False
        for p in positions:
            upl = p.get("upl")
            if upl is None:
                continue
            has_upl = True
            upl_total += float(upl)
        bal = cfg["fetch_options_balances"](ex)
        stats = _compute_options_stats(cfg["get_db"])
        return {
            "ok": True,
            "enabled": True,
            "positions": positions,
            "position_count": len(positions),
            "upl_total_usdc": round(upl_total, 4) if has_upl else None,
            "balances": bal,
            "funding_usdc": bal.get("funding_usdc"),
            "funding_usdt": bal.get("funding_usdt"),
            "trading_usdc": bal.get("trading_usdc"),
            "trading_usdt": bal.get("trading_usdt"),
            "stats": stats,
            "trade_budget": cfg.get("trade_budget"),
            "account_label": cfg.get("account_label") or "OKX期权",
        }
    except Exception as e:
        return {"ok": False, "enabled": True, "msg": str(e)}
