"""交易结果展示与入库时的语义归一化."""

_WIN_EPS = 1e-9


def normalize_display_result(result):
    """展示用:外部平仓一律视为手动平仓."""
    res = (result or "").strip()
    if res == "外部平仓" or res.startswith("外部平仓"):
        return "手动平仓"
    return res


def is_winning_pnl(pnl_amount) -> bool:
    """胜率统计:盈亏为正即计为盈利单."""
    try:
        return float(pnl_amount or 0) > _WIN_EPS
    except (TypeError, ValueError):
        return False


def sql_effective_pnl_expr() -> str:
    """与 to_effective_trade_dict / hub_trades_lib 一致的盈亏 SQL 表达式."""
    return "COALESCE(reviewed_pnl_amount, exchange_realized_pnl, pnl_amount, 0)"


def count_winning_trades(trades) -> int:
    return sum(1 for r in trades or [] if is_winning_pnl(r.get("effective_pnl_amount")))


MISS_TRADE_RESULT = "错过"


def is_miss_trade_result(result) -> bool:
    return (result or "").strip() == MISS_TRADE_RESULT


def filter_trade_records_excluding_miss(records):
    """列表/统计:不展示,不计入「错过」类交易记录."""
    return [
        r
        for r in (records or [])
        if not is_miss_trade_result(r.get("effective_result") or r.get("result"))
    ]


def normalize_result_with_pnl(result, pnl_amount):
    """
    非手动平仓且实际盈利时,不应记为「止损」.
    程序触发的止损类平仓若盈亏为正,归类为「移动止盈」.
    """
    res = normalize_display_result(result)
    if res == "手动平仓":
        return res
    if res == "止损":
        try:
            if float(pnl_amount or 0) > 0:
                return "移动止盈"
        except (TypeError, ValueError):
            pass
    return res
