import React from 'react';

const STRATEGY_ORDER = ['engine_w', 'random_null', 'coverage'];
const STRATEGY_LABEL = { engine_w: '엔진', random_null: '무작위', coverage: '커버리지' };

export default function TrackRecordCard({ byStrategy }) {
    if (!byStrategy) return null;

    const rows = STRATEGY_ORDER.filter((s) => byStrategy[s]);

    return (
        <div className="evolver-card backtest-track-record">
            <h2>누적 성적표</h2>
            {rows.length === 0 ? (
                <p className="backtest-note">아직 백테스트 데이터가 없습니다.</p>
            ) : (
                <>
                    <table className="backtest-table">
                        <thead>
                            <tr>
                                <th>전략</th>
                                <th>누적 장수</th>
                                <th>회차수</th>
                                <th>1등</th>
                                <th>2등</th>
                                <th>3등</th>
                                <th>4등</th>
                                <th>5등</th>
                            </tr>
                        </thead>
                        <tbody>
                            {rows.map((s) => {
                                const a = byStrategy[s];
                                return (
                                    <tr key={s}>
                                        <td>{STRATEGY_LABEL[s] || s}</td>
                                        <td>{(a.n_tickets || 0).toLocaleString()}</td>
                                        <td>{a.draws || 0}</td>
                                        <td>{a['1st'] || 0}</td>
                                        <td>{a['2nd'] || 0}</td>
                                        <td>{a['3rd'] || 0}</td>
                                        <td>{a['4th'] || 0}</td>
                                        <td>{a['5th'] || 0}</td>
                                    </tr>
                                );
                            })}
                        </tbody>
                    </table>
                    <p className="backtest-note">
                        엔진이 무작위를 넘지 못하면 분석에 통계적 우위가 없다는 정직한 증거입니다.
                    </p>
                </>
            )}
        </div>
    );
}
