/**
 * MatchDetailSection: 赛程行(MatchRow)+ 展开详情面板(统计/近况/H2H/历史预测)。
 *
 * D3: 从 Matches.tsx 拆出,渲染逻辑原样搬迁。MatchRow 原先是主组件内
 * group.map 的内联 JSX,现接收回调(onToggle/onPredict)保持行为一致;
 * 展开懒加载的 state 仍由页面持有。
 */
import TeamSideTag from '../../../components/TeamSideTag'
import { fetchMatchDetail, fetchMatchContext } from '../../../admin/dal'
import type { MatchDetailOut, MatchContextOut, MatchRecentPrediction, TeamRecentMatch } from '../../../admin/types'
import type { MatchStatsDetail } from '../../../admin/types'
import { STATUS_META } from '../types'
import type { Match } from '../types'
import { Spinner } from '../ui'

/** 比赛详情面板:双方近况/H2H + 历史预测列表(只读) */
function MatchDetailPanel({
  match, detail, ctx, loading,
}: {
  match: Match
  detail: MatchDetailOut | undefined
  ctx: MatchContextOut | undefined
  loading: boolean
}) {
  const homeName = match.home_team_zh || match.home_team
  const awayName = match.away_team_zh || match.away_team
  const finished = match.match_status === 'finished'

  return (
    <div className="border-b border-ink-200 bg-paper-100/50 px-3 py-4">
      {loading && (
        <div className="flex items-center gap-2 text-xs text-ink-500"><Spinner /> 加载详情中…</div>
      )}

      {!loading && !detail && !ctx && (
        <p className="py-4 text-center text-xs text-ink-400">暂无详情数据</p>
      )}

      {!loading && (detail || ctx) && (
        <div className="space-y-5">
          {/* 比分区(终场/当前比分 + 状态 + 预测按钮) */}
          <div className="flex flex-wrap items-center justify-between gap-3">
            <div className="text-center">
              <p className="font-serif text-3xl font-bold tabular-nums leading-none text-ink-900">
                {match.home_goals ?? '-'}{' '}<span className="text-ink-300">:</span>{' '}{match.away_goals ?? '-'}
              </p>
              <p className="mt-1 text-2xs text-ink-500">
                {match.match_stage || ''} {match.match_status === 'finished' ? '· 已完赛' : match.match_status === 'scheduled' ? '· 未开赛' : `· ${match.match_status}`}
              </p>
              {match.home_xg != null && match.away_xg != null && (
                <p className="text-2xs tabular-nums text-ink-400">xG {match.home_xg.toFixed(1)}–{match.away_xg.toFixed(1)}</p>
              )}
            </div>
            {!finished && (
              <span className="text-2xs text-ink-500">
                点击行首「预测」按钮发起多专家分析
              </span>
            )}
          </div>

          {/* 比赛详细统计(bzzoiro /events/{id}/stats/) */}
          {detail?.stats && (
            <MatchStatsPanel stats={detail.stats} homeName={homeName} awayName={awayName} />
          )}

          {/* 双方近况 + H2H */}
          {(ctx?.home_recent?.length || ctx?.away_recent?.length || ctx?.h2h?.length) ? (
            <div className="grid gap-4 sm:grid-cols-3">
              <RecentBlock title={`${homeName} 近况`} rows={ctx?.home_recent} side="home" />
              <RecentBlock title={`${awayName} 近况`} rows={ctx?.away_recent} side="away" />
              <RecentBlock title="历史交锋(H2H)" rows={ctx?.h2h} side="h2h" />
            </div>
          ) : (
            !loading && <p className="text-2xs text-ink-400">暂无近期对战数据</p>
          )}

          {/* 历史预测列表 */}
          <div>
            <h4 className="section-head mb-2">历史预测({detail?.recent_predictions?.length ?? 0})</h4>
            {detail?.recent_predictions?.length ? (
              <div className="space-y-2">
                {detail.recent_predictions.map(p => (
                  <PredictionHistoryRow key={p.id} p={p} />
                ))}
              </div>
            ) : (
              <p className="py-3 text-center text-2xs text-ink-400">该场比赛暂无预测记录</p>
            )}
          </div>
        </div>
      )}
    </div>
  )
}

/** 赛程表一行:可点击展开详情;展开时懒加载详情(只读,不触发 LLM) */
export function MatchRow({
  m,
  busy,
  expanded,
  detail,
  ctx,
  detailLoading,
  onToggle,
  onPredict,
}: {
  m: Match
  busy: boolean
  expanded: boolean
  detail: MatchDetailOut | undefined
  ctx: MatchContextOut | undefined
  detailLoading: boolean
  onToggle: () => void
  onPredict: (m: Match) => void
}) {
  const st = STATUS_META[m.match_status] ?? { label: m.match_status, cls: 'text-ink-400' }
  const homeName = m.home_team_zh || m.home_team
  const awayName = m.away_team_zh || m.away_team
  const finished = m.match_status === 'finished'

  return (
    <div>
      {/* 行:可点击展开 */}
      <div
        className={`border-b border-ink-200 px-4 py-5 transition-colors hover:bg-paper-100/70 cursor-pointer sm:px-1 sm:py-4 ${
          expanded ? 'bg-paper-100/60' : ''
        }`}
        onClick={onToggle}
        role="button"
        tabIndex={0}
        onKeyDown={e => { if (e.key === 'Enter') onToggle() }}
        aria-expanded={expanded}
      >
      {/* 桌面 grid: 日期 | 主队 | 比分 | 客队 | 状态 | 按钮 */}
      <div className="flex flex-col gap-3 sm:grid sm:grid-cols-[96px_minmax(0,1fr)_72px_minmax(0,1fr)_64px_88px] sm:items-center sm:gap-x-4 sm:gap-y-0">
        {/* 日期 + 状态:小屏同行;桌面 date 单独一列 */}
        <div className="flex items-center justify-between text-xs sm:contents">
          <span className="tabular-nums text-ink-500 sm:text-xs">{fmtTime(m.match_date)}</span>
          <span className={`sm:hidden ${st.cls}`}>{st.label}</span>
        </div>

        {/* 主队 + 比分 + 客队:移动端 grid 三列(严格居中),桌面端 grid 分列 */}
        <div className="grid grid-cols-[1fr_auto_1fr] items-center gap-4 sm:contents">
          {/* 主队(右对齐) */}
          <span className="flex min-w-0 items-center justify-end gap-2">
            <TeamSideTag side="home" />
            <span className="truncate text-sm font-medium text-ink-900">{homeName}</span>
          </span>

          {/* 比分 / VS(严格居中) */}
          <span className="flex flex-col items-center justify-center">
            {m.home_goals !== null && m.away_goals !== null ? (
              <span className="font-serif text-xl font-bold tabular-nums leading-none text-ink-900 sm:text-xl">
                {m.home_goals}<span className="mx-1 font-normal text-ink-300">:</span>{m.away_goals}
              </span>
            ) : (
              <span className="text-sm tracking-[0.2em] text-ink-500">VS</span>
            )}
            {m.home_xg !== null && m.away_xg !== null && (
              <span className="mt-0.5 text-2xs tabular-nums text-ink-400">
                xG {m.home_xg.toFixed(1)}–{m.away_xg.toFixed(1)}
              </span>
            )}
          </span>

          {/* 客队(左对齐) */}
          <span className="flex min-w-0 items-center gap-2">
            <TeamSideTag side="away" />
            <span className="truncate text-sm font-medium text-ink-900">{awayName}</span>
          </span>
        </div>

        {/* 状态标签:小屏隐藏(已有);桌面用徽标样式 */}
        <span className="hidden text-right sm:block">
          <span className={`inline-block border px-1.5 py-0.5 text-2xs leading-tight ${st.cls} ${
            m.match_status === 'finished'
              ? 'border-ink-200 text-ink-500'
              : m.match_status === 'scheduled'
                ? 'border-ink-300 text-ink-600'
                : 'border-press/30 text-press'
          }`}>
            {st.label}
          </span>
        </span>

        {/* 预测按钮(统一,响应式尺寸) */}
        {!finished && (
          <div className="flex justify-end" onClick={e => e.stopPropagation()}>
            <button
              onClick={() => onPredict(m)}
              disabled={busy}
              className={`btn ${busy ? '' : 'btn-solid'} w-full min-h-[44px] sm:w-[84px] sm:min-h-0 sm:btn-sm`}
              title="以多专家模式预测这场"
            >
              {busy ? (<><Spinner /> 预测中</>) : '预测'}
            </button>
          </div>
        )}
      </div>
      </div>{/* 关闭可点击行 */}

      {/* 展开详情面板 */}
      {expanded && (
        <MatchDetailPanel
          match={m} detail={detail} ctx={ctx}
          loading={detailLoading}
        />
      )}
    </div>
  )
}

/** 行内时间展示:只显示 HH:mm(日期由分组头承担) */
function fmtTime(s: string): string {
  const d = new Date(s)
  return d.toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit', hour12: false })
}

/** 比赛详细统计面板(bzzoiro /events/{id}/stats/) */
function MatchStatsPanel({
  stats, homeName, awayName,
}: { stats: MatchStatsDetail; homeName: string; awayName: string }) {
  const rows: Array<{ label: string; home: number | null; away: number | null; highlight?: 'high' | 'low' }> = [
    { label: '预期进球(xG)', home: stats.home_xg, away: stats.away_xg },
    { label: '射门', home: stats.home_shots, away: stats.away_shots },
    { label: '射正', home: stats.home_shots_on_target, away: stats.away_shots_on_target },
    { label: '角球', home: stats.home_corners, away: stats.away_corners },
    { label: '犯规', home: stats.home_fouls, away: stats.away_fouls },
    { label: '绝佳机会', home: stats.home_big_chances, away: stats.away_big_chances },
    { label: '黄牌', home: stats.home_yellow_cards, away: stats.away_yellow_cards },
    { label: '红牌', home: stats.home_red_cards, away: stats.away_red_cards },
  ]
  const hasAny = rows.some(r => r.home != null || r.away != null)
  if (!hasAny) return null

  // 控球率用横条展示
  const possHome = stats.home_possession
  const possAway = possHome != null ? Math.max(0, 100 - possHome) : null

  return (
    <div>
      <h4 className="section-head mb-2">比赛统计</h4>

      {/* 控球率横条 */}
      {possHome != null && possAway != null && (
        <div className="mb-3">
          <div className="mb-1 flex justify-between text-2xs text-ink-500">
            <span>{possHome.toFixed(0)}%</span>
            <span className="text-ink-400">控球率</span>
            <span>{possAway.toFixed(0)}%</span>
          </div>
          <div className="flex h-1.5 overflow-hidden rounded-full bg-ink-200">
            <div className="bg-ink-700 transition-[width] duration-500" style={{ width: `${possHome}%` }} />
            <div className="bg-ink-300 transition-[width] duration-500" style={{ width: `${possAway}%` }} />
          </div>
        </div>
      )}

      {/* 主客对比表 */}
      <div className="overflow-x-auto">
        <table className="w-full text-xs">
          <thead>
            <tr className="border-b border-ink-200 text-ink-400">
              <th className="py-1.5 text-left font-medium">{homeName}</th>
              <th className="py-1.5 text-center font-medium text-ink-500">统计项</th>
              <th className="py-1.5 text-right font-medium">{awayName}</th>
            </tr>
          </thead>
          <tbody>
            {rows.filter(r => r.home != null || r.away != null).map(r => {
              const h = r.home ?? 0
              const a = r.away ?? 0
              const winner = h > a ? 'home' : h < a ? 'away' : 'tie'
              return (
                <tr key={r.label} className="border-b border-ink-100">
                  <td className={`py-1.5 text-right tabular-nums ${winner === 'home' ? 'font-bold text-ink-900' : 'text-ink-500'}`}>
                    {r.home ?? '—'}
                  </td>
                  <td className="py-1.5 text-center text-ink-500">{r.label}</td>
                  <td className={`py-1.5 text-left tabular-nums ${winner === 'away' ? 'font-bold text-ink-900' : 'text-ink-500'}`}>
                    {r.away ?? '—'}
                  </td>
                </tr>
              )
            })}
          </tbody>
        </table>
      </div>
    </div>
  )
}

/** 近况/H2H 单区块 */
function RecentBlock({ title, rows, side }: { title: string; rows?: TeamRecentMatch[]; side: 'home' | 'away' | 'h2h' }) {
  return (
    <div>
      <h5 className="mb-1.5 text-2xs font-medium text-ink-500">{title}</h5>
      {rows && rows.length > 0 ? (
        <ul className="space-y-1">
          {rows.map((r, i) => {
            const date = r.match_date ? new Date(r.match_date).toLocaleDateString('zh-CN', { month: '2-digit', day: '2-digit' }) : '—'
            const score = (r.home_goals != null && r.away_goals != null) ? `${r.home_goals}-${r.away_goals}` : 'vs'
            const label = side === 'h2h'
              ? `${r.home_team ?? '?'} ${score} ${r.away_team ?? '?'}`
              : `${score}`
            return (
              <li key={i} className="flex items-center justify-between text-2xs tabular-nums text-ink-600">
                <span className="text-ink-400">{date}</span>
                <span className="truncate">{label}</span>
              </li>
            )
          })}
        </ul>
      ) : (
        <p className="text-2xs text-ink-300">暂无</p>
      )}
    </div>
  )
}

/** 历史预测单行(含专家报告入口) */
function PredictionHistoryRow({ p }: { p: MatchRecentPrediction }) {
  const badge = p.status === 'degraded'
    ? { label: 'degraded', cls: 'text-press' }
    : p.settled
      ? { label: p.correct_1x2 === undefined ? '已结算' : p.correct_1x2 ? '命中' : '未中', cls: p.correct_1x2 ? 'text-ink-900' : 'text-ink-400' }
      : { label: p.status === 'success' ? '成功' : p.status, cls: 'text-ink-600' }
  const score = (p.pred_home_goals != null && p.pred_away_goals != null)
    ? `${p.pred_home_goals.toFixed(1)}-${p.pred_away_goals.toFixed(1)}`
    : '—'
  const alt = (p.alt_pred_home_goals != null && p.alt_pred_away_goals != null)
    ? `${p.alt_pred_home_goals.toFixed(1)}-${p.alt_pred_away_goals.toFixed(1)}` : null
  const hasAgents = p.agent_outputs && p.agent_outputs.length > 0

  return (
    <div className="border-b border-ink-200 pb-2 last:border-b-0">
      <div className="flex items-center justify-between text-xs">
        <span className="tabular-nums text-ink-600">
          {score} {p.pred_1x2 ? `(${p.pred_1x2})` : ''}
          {alt && <span className="ml-1 text-ink-400">备选 {alt}</span>}
        </span>
        <span className="flex items-center gap-2">
          {p.subjective_confidence != null && (
            <span className="text-2xs tabular-nums text-ink-400">信心 {Math.round(p.subjective_confidence * 100)}%</span>
          )}
          <span className={`text-2xs ${badge.cls}`}>{badge.label}</span>
        </span>
      </div>
      <div className="mt-0.5 flex items-center justify-between text-2xs text-ink-400">
        <span className="truncate">{p.model} · {p.mode} · {p.created_at ? new Date(p.created_at).toLocaleString('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', hour12: false }) : '—'}</span>
        {hasAgents && <span className="text-press">{p.agent_outputs!.length} 路专家报告</span>}
      </div>
      {p.reasoning && (
        <p className="mt-1 line-clamp-2 font-serif text-2xs leading-relaxed text-ink-500">{p.reasoning}</p>
      )}
    </div>
  )
}

// 详情懒加载取数在此文件内聚:页面只需切换 expandedId 并缓存结果
export async function loadMatchDetailBundle(
  matchId: number,
): Promise<{ detail: MatchDetailOut | null; ctx: MatchContextOut | null }> {
  const [d, c] = await Promise.all([
    fetchMatchDetail(matchId).catch(() => null),
    fetchMatchContext(matchId).catch(() => null),
  ])
  return { detail: d, ctx: c }
}