import { useCallback, useEffect, useRef, useState } from 'react'
import TeamSideTag from '../components/TeamSideTag'

interface Match {
  id: number
  league_code: string | null
  season: string | null
  home_team: string
  away_team: string
  home_team_zh: string | null
  away_team_zh: string | null
  match_date: string
  match_status: string
  home_goals: number | null
  away_goals: number | null
  match_stage: string | null
  home_xg: number | null
  away_xg: number | null
}

interface Prediction {
  prediction_id: number
  provider: string
  model: string
  prompt_version: string | null
  mode: string
  pred_home_goals: number | null
  pred_away_goals: number | null
  alt_pred_home_goals: number | null
  alt_pred_away_goals: number | null
  pred_1x2: string | null
  subjective_confidence: number | null
  reasoning: string | null
  agent_outputs: AgentReport[] | null
  agent_weights: Record<string, number> | null
  context: string
  latency_ms: number | null
}

interface AgentReport {
  agent: string
  status: string
  data_sufficiency: string
  analysis: string
  home_edge: number | null
  subjective_confidence: number | null
  key_evidence: string[]
  exp_home_goals: number | null
  exp_away_goals: number | null
  probable_score: string | null
  model: string
  latency_ms: number | null
}

const AGENT_LABELS: Record<string, string> = {
  h2h: '历史交锋分析专家',
  form: '近期状态分析专家',
  stats: '攻防数据分析专家',
  home_away: '主客因素分析专家',
  injuries: '阵容完整性分析专家',
}

const LEAGUES = [
  { code: 'E0', name: '英超' },
  { code: 'SP1', name: '西甲' },
  { code: 'D1', name: '德甲' },
  { code: 'I1', name: '意甲' },
  { code: 'F1', name: '法甲' },
]

/** 汉字编号,给专家意见排版用 */
const CN_NUM = ['一', '二', '三', '四', '五', '六', '七', '八']

const STATUS_META: Record<string, { label: string; cls: string }> = {
  finished: { label: '已完赛', cls: 'text-ink-400' },
  scheduled: { label: '未开赛', cls: 'text-ink-600' },
  live: { label: '进行中', cls: 'text-press font-medium' },
}

/** 1x2 → 中文标签 */
const OUTCOME_LABEL: Record<string, string> = { '1': '主胜', X: '平局', '2': '客胜' }

/** 置信度细线:0~1 数值的低调可视化 */
function Meter({ value }: { value: number }) {
  const pct = Math.max(0, Math.min(100, Math.round(value * 100)))
  return (
    <div className="h-px w-full bg-ink-200" role="presentation">
      <div className="h-px bg-press transition-[width] duration-500" style={{ width: `${pct}%` }} />
    </div>
  )
}

/** home_edge(-1~1,正=利主队)的可视化:以中线为原点的双向细条 */
function EdgeBar({ value }: { value: number }) {
  const v = Math.max(-1, Math.min(1, value))
  const half = Math.abs(v) * 50
  return (
    <div className="relative h-px w-full bg-ink-200" role="presentation">
      <span className="absolute left-1/2 top-1/2 h-2 w-px -translate-x-1/2 -translate-y-1/2 bg-ink-400" />
      <span
        className={`absolute top-0 h-px transition-all duration-500 ${v >= 0 ? 'bg-press' : 'bg-ink-600'}`}
        style={
          v >= 0
            ? { left: '50%', width: `${half}%` }
            : { right: '50%', width: `${half}%` }
        }
      />
    </div>
  )
}

/** 骨架占位行:低调脉动灰块 */
function SkeletonRows({ n = 4 }: { n?: number }) {
  return (
    <>
      {Array.from({ length: n }).map((_, i) => (
        <div key={i} className="flex items-center gap-4 border-b border-ink-200 px-1 py-3.5">
          <div className="skeleton h-3 w-16" />
          <div className="skeleton h-3 flex-1" />
          <div className="skeleton h-3 w-10" />
          <div className="skeleton h-3 flex-1" />
          <div className="skeleton h-3 w-16" />
        </div>
      ))}
    </>
  )
}

function Spinner({ className = '' }: { className?: string }) {
  return (
    <svg
      viewBox="0 0 20 20"
      className={`h-3.5 w-3.5 animate-spin ${className}`}
      fill="none"
      aria-hidden="true"
    >
      <circle cx="10" cy="10" r="7.5" stroke="currentColor" strokeWidth="1.5" strokeOpacity="0.25" />
      <path d="M17.5 10A7.5 7.5 0 0010 2.5" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round" />
    </svg>
  )
}

/** 胜平负一行文字:选中的红字加方块标记,未选中的退灰 */
function OutcomeLine({
  pick,
  confidence,
}: {
  pick: string | null
  confidence: number | null
}) {
  const options = ['1', 'X', '2'] as const
  return (
    <div>
      <div className="flex items-baseline justify-center gap-6 sm:gap-10">
        {options.map(o => {
          const on = pick === o
          return (
            <div key={o} className="flex flex-col items-center gap-1">
              <span className={`flex items-center gap-1.5 text-sm ${on ? 'font-semibold text-press' : 'text-ink-400'}`}>
                {on && <span className="inline-block h-2 w-2 bg-press" aria-hidden="true" />}
                {OUTCOME_LABEL[o]}
              </span>
              {on && confidence !== null && (
                <span className="text-2xs tabular-nums text-ink-500">
                  置信 {Math.round(confidence * 100)}%
                </span>
              )}
            </div>
          )
        })}
      </div>
      {pick && confidence !== null && (
        <div className="mx-auto mt-3 max-w-xs">
          <Meter value={confidence} />
          <p className="mt-1 text-center text-2xs text-ink-400">主观置信度,非统计概率</p>
        </div>
      )}
    </div>
  )
}

export default function Matches() {
  const [league, setLeague] = useState('E0')
  const [status, setStatus] = useState('scheduled')
  const [matches, setMatches] = useState<Match[]>([])
  const [nextCursor, setNextCursor] = useState<string | null>(null)
  const [loadingMore, setLoadingMore] = useState(false)
  const [loading, setLoading] = useState(false)
  const [predictingId, setPredictingId] = useState<number | null>(null)
  const [prediction, setPrediction] = useState<Prediction | null>(null)
  const [predictionFor, setPredictionFor] = useState<Match | null>(null)
  const [error, setError] = useState<string | null>(null)
  const [mode, setMode] = useState<'single' | 'multi'>('multi')

  // 请求竞态防护:切换联赛/状态很快时,先发的慢请求可能后返回,
  // 把旧结果覆盖到新筛选上。用递增序号只认最后一次请求的响应。
  const loadSeq = useRef(0)
  const predictSeq = useRef(0)
  // 预测请求控制器:关闭弹窗时中止
  const predictAbort = useRef<AbortController | null>(null)

  function closePredict() {
    predictAbort.current?.abort()
    predictSeq.current++  // 令中止请求的 catch/then 全部失效,不再写入错误
    setPredictingId(null)
    setPrediction(null)
    setPredictionFor(null)
    setError(null)
  }

  const load = useCallback(async () => {
    const seq = ++loadSeq.current
    setLoading(true)
    // 切换筛选时作废进行中的「加载更多」,避免其标志位卡住
    setLoadingMore(false)
    setError(null)
    try {
      const params = new URLSearchParams({ league, status, limit: '50' })
      const res = await fetch(`/api/v1/matches?${params}`)
      if (seq !== loadSeq.current) return // 已有更新的请求,丢弃本次结果
      if (!res.ok) throw new Error(`HTTP ${res.status}`)
      const data = await res.json()
      if (seq !== loadSeq.current) return
      setMatches(data.items)
      setNextCursor(data.next_cursor ?? null)
    } catch (e) {
      if (seq !== loadSeq.current) return
      setError(e instanceof Error ? e.message : String(e))
    } finally {
      if (seq === loadSeq.current) setLoading(false)
    }
  }, [league, status])

  // 加载下一页(游标分页)
  const loadMore = async () => {
    if (!nextCursor || loadingMore) return
    const seq = loadSeq.current // 不做自增:切换筛选会自增,这里只跟随当前序列
    setLoadingMore(true)
    try {
      const params = new URLSearchParams({ league, status, limit: '50', cursor: nextCursor })
      const res = await fetch(`/api/v1/matches?${params}`)
      if (seq !== loadSeq.current) return
      if (!res.ok) throw new Error(`HTTP ${res.status}`)
      const data = await res.json()
      if (seq !== loadSeq.current) return
      setMatches(prev => [...prev, ...data.items])
      setNextCursor(data.next_cursor ?? null)
    } catch (e) {
      if (seq !== loadSeq.current) return
      setError(e instanceof Error ? e.message : String(e))
    } finally {
      if (seq === loadSeq.current) setLoadingMore(false)
    }
  }

  useEffect(() => { load() }, [load])

  const predict = async (m: Match) => {
    const seq = ++predictSeq.current
    setPredictingId(m.id)
    setError(null)
    setPrediction(null)
    setPredictionFor(m)
    // LLM 多专家预测耗时可达数分钟,给足超时(与 nginx 代理 300s 对齐)
    const controller = new AbortController()
    predictAbort.current = controller
    const timer = setTimeout(() => controller.abort(), 300_000)
    try {
      const res = await fetch('/api/v1/predict', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ match_id: m.id, mode }),
        signal: controller.signal,
      })
      if (seq !== predictSeq.current) return
      if (!res.ok) {
        const t = await res.text()
        throw new Error(`HTTP ${res.status}: ${t}`)
      }
      const data = await res.json()
      if (seq !== predictSeq.current) return
      setPrediction(data)
    } catch (e) {
      if (seq !== predictSeq.current) return
      setError(
        e instanceof DOMException && e.name === 'AbortError'
          ? '预测超时(5 分钟),请稍后重试或改用单次模式'
          : e instanceof Error
            ? e.message
            : String(e),
      )
    } finally {
      clearTimeout(timer)
      if (seq === predictSeq.current) setPredictingId(null)
    }
  }

  const fmtDate = (s: string) => {
    const d = new Date(s)
    return d.toLocaleString('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit' })
  }

  const leagueName = LEAGUES.find(l => l.code === league)?.name ?? league

  /** 状态/模式一组的文字切换 */
  const Switch = ({ value, onChange, items }: {
    value: string
    onChange: (v: string) => void
    items: { v: string; label: string; title?: string }[]
  }) => (
    <span className="inline-flex items-center gap-2.5">
      {items.map((it, i) => (
        <span key={it.v} className="inline-flex items-center gap-2.5">
          {i > 0 && <span className="text-ink-300" aria-hidden="true">/</span>}
          <button
            onClick={() => onChange(it.v)}
            title={it.title}
            className={`relative tab ${value === it.v ? 'tab-on' : ''} text-xs`}
          >
            {it.label}
          </button>
        </span>
      ))}
    </span>
  )

  return (
    <div className="space-y-5">
      {/* ── 联赛版面切换 ── */}
      <nav className="flex items-center gap-6 overflow-x-auto border-b border-ink-900" aria-label="联赛">
        {LEAGUES.map(l => (
          <button
            key={l.code}
            onClick={() => setLeague(l.code)}
            className={`relative tab ${league === l.code ? 'tab-on' : ''} font-serif`}
          >
            {l.name}
          </button>
        ))}
      </nav>

      {/* ── 第二行:状态 / 模式 / 计数 / 刷新 ── */}
      <div className="flex flex-wrap items-center gap-x-5 gap-y-2 text-xs text-ink-500">
        <span className="inline-flex items-center gap-2.5">
          <span className="text-2xs text-ink-400">状态</span>
          <Switch
            value={status}
            onChange={setStatus}
            items={[
              { v: 'scheduled', label: '未开赛' },
              { v: 'finished', label: '已完赛' },
              { v: '', label: '全部' },
            ]}
          />
        </span>

        <span className="inline-flex items-center gap-2.5">
          <span className="text-2xs text-ink-400">模式</span>
          <Switch
            value={mode}
            onChange={v => setMode(v as 'single' | 'multi')}
            items={[
              { v: 'single', label: '单次', title: '单次调用,快但只有一个模型看全部数据' },
              { v: 'multi', label: '多专家', title: '5 个专家并行分析后由终裁汇总,质量更高' },
            ]}
          />
        </span>

        <span className="ml-auto inline-flex items-center gap-3">
          <span className="tabular-nums">共 {matches.length} 场</span>
          <button onClick={load} disabled={loading} className="btn btn-sm">
            {loading ? (<><Spinner /> 获取中</>) : '刷新'}
          </button>
        </span>
      </div>

      {/* ── 错误提示 ── */}
      {error && (
        <div className="flex items-start justify-between gap-3 border border-press bg-press-wash px-4 py-3">
          <div>
            <p className="text-sm font-medium text-press">请求失败</p>
            <p className="mt-0.5 text-xs text-ink-600">{error}</p>
          </div>
          <button onClick={() => setError(null)} className="text-ink-400 transition-colors hover:text-ink-900" aria-label="关闭">
            <svg viewBox="0 0 20 20" className="h-4 w-4" fill="currentColor" aria-hidden="true">
              <path d="M6.3 5.3a1 1 0 011.4 0L10 7.6l2.3-2.3a1 1 0 111.4 1.4L11.4 9l2.3 2.3a1 1 0 01-1.4 1.4L10 10.4l-2.3 2.3a1 1 0 01-1.4-1.4L8.6 9 6.3 6.7a1 1 0 010-1.4z" />
            </svg>
          </button>
        </div>
      )}

      {/* ── 预测弹窗:进行中可视化 / 结果面板 ── */}
      {predictionFor && (
        <PredictModal
          match={predictionFor}
          mode={mode}
          predicting={predictingId === predictionFor.id}
          prediction={predictingId === predictionFor.id ? null : prediction}
          error={predictingId === predictionFor.id ? null : error}
          onClose={closePredict}
        />
      )}

      {/* ── 赛程栏:表格化,行间细线 ── */}
      <section aria-label="赛程">
        {loading && <SkeletonRows n={4} />}

        {!loading && matches.length === 0 && (
          <div className="border-y border-ink-200 py-14 text-center">
            <p className="font-serif text-sm text-ink-600">本版暂无赛程</p>
            <p className="mt-1.5 text-xs text-ink-400">请先通过采集接口导入 {leagueName} 的比赛数据</p>
          </div>
        )}

        {!loading && matches.map(m => {
          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 busy = predictingId === m.id
          const active = predictionFor?.id === m.id
          const finished = m.match_status === 'finished'

          return (
            <div
              key={m.id}
              className={`border-b border-ink-200 px-1 py-3 transition-colors hover:bg-paper-100 ${
                active ? 'bg-press-wash/50' : ''
              }`}
            >
              <div className="flex flex-col gap-2 sm:grid sm:grid-cols-[88px_minmax(0,1fr)_64px_minmax(0,1fr)_56px_auto] sm:items-center sm:gap-x-3 sm:gap-y-0">
                {/* 日期 + 状态:移动端同行,桌面端日期单独归列 */}
                <div className="flex items-center justify-between sm:contents">
                  <span className="text-2xs tabular-nums text-ink-400">{fmtDate(m.match_date)}</span>
                  <span className={`text-2xs sm:hidden ${st.cls}`}>{st.label}</span>
                </div>

                {/* 对阵:移动端主队/比分/客队同一行,桌面端 sm:contents 拆回 grid 列 */}
                <div className="flex items-center gap-2 sm:contents">
                  {/* 主队(右对齐) */}
                  <div className="flex min-w-0 flex-1 items-center justify-end gap-1.5">
                    <TeamSideTag side="home" />
                    <span className="truncate text-sm font-medium text-ink-900">{homeName}</span>
                  </div>

                  {/* 比分 / VS */}
                  <div className="flex w-14 flex-shrink-0 flex-col items-center sm:w-auto">
                    {m.home_goals !== null && m.away_goals !== null ? (
                      <span className="font-serif text-base font-bold tabular-nums text-ink-900">
                        {m.home_goals}<span className="mx-0.5 font-normal text-ink-300">:</span>{m.away_goals}
                      </span>
                    ) : (
                      <span className="text-2xs tracking-widest text-ink-400">VS</span>
                    )}
                    {m.home_xg !== null && m.away_xg !== null && (
                      <span className="text-2xs tabular-nums text-ink-400">
                        xG {m.home_xg.toFixed(1)}-{m.away_xg.toFixed(1)}
                      </span>
                    )}
                  </div>

                  {/* 客队(左对齐) */}
                  <div className="flex min-w-0 flex-1 items-center gap-1.5">
                    <TeamSideTag side="away" />
                    <span className="truncate text-sm font-medium text-ink-900">{awayName}</span>
                  </div>
                </div>

                {/* 状态列(桌面) */}
                <span className={`hidden text-right text-2xs sm:block ${st.cls}`}>{st.label}</span>

                {/* 预测按钮 */}
                <div className="flex justify-end">
                  {!finished && (
                    <button
                      onClick={() => predict(m)}
                      disabled={busy}
                      className="btn btn-sm w-[76px]"
                      title={`以${mode === 'multi' ? '多专家' : '单次'}模式预测这场`}
                    >
                      {busy ? (<><Spinner /> 预测中</>) : '预测'}
                    </button>
                  )}
                </div>
              </div>
            </div>
          )
        })}

        {!loading && nextCursor && (
          <div className="flex justify-center pt-4">
            <button onClick={loadMore} disabled={loadingMore} className="btn btn-sm">
              {loadingMore ? (<><Spinner /> 获取中</>) : '载入更多'}
            </button>
          </div>
        )}
      </section>

    </div>
  )
}


/** 预测过程阶段(按时长模拟;结果到达即跳到完成) */
function PredictProgress({ mode }: { mode: 'single' | 'multi' }) {
  const [elapsed, setElapsed] = useState(0)
  useEffect(() => {
    const t = setInterval(() => setElapsed(e => e + 0.5), 500)
    return () => clearInterval(t)
  }, [])

  // 阶段阈值(秒): 切片 → 专家(各路依次点亮) → 终裁
  const SLICE_END = mode === 'multi' ? 3 : 3
  const AGENT_START = 4
  const AGENT_STEP = 8        // 每路专家约 8s 点亮一路
  const AGG_START = mode === 'multi' ? AGENT_START + AGENT_STEP * 5 : SLICE_END + 1
  const agents = ['form', 'stats', 'home_away', 'injuries', 'h2h']

  const phase = elapsed < SLICE_END ? 'slice'
    : mode === 'single'
      ? 'model'
      : elapsed < AGG_START ? 'agents' : 'agg'

  const pct = Math.min(95, Math.round((elapsed / (mode === 'multi' ? 70 : 20)) * 100))

  return (
    <div className="px-5 py-8 sm:px-8">
      {/* 阶段标题 */}
      <div className="flex items-center justify-center gap-2">
        <Spinner className="text-press" />
        <span className="font-serif text-sm font-bold text-ink-900">
          {phase === 'slice' && '正在组装比赛数据切片'}
          {phase === 'agents' && '五路专家并行分析中'}
          {phase === 'model' && '模型分析中'}
          {phase === 'agg' && '终裁专家汇总裁定中'}
        </span>
        <span className="text-2xs tabular-nums text-ink-400">{elapsed.toFixed(0)}s</span>
      </div>

      {/* 进度条:渐进式,不封顶到 100% */}
      <div className="mx-auto mt-5 h-1 w-full max-w-md overflow-hidden bg-ink-100" role="progressbar" aria-valuenow={pct}>
        <div
          className={`h-full bg-press transition-all duration-500 ${phase === 'agg' || phase === 'model' ? 'animate-pulse' : ''}`}
          style={{ width: `${pct}%` }}
        />
      </div>

      {/* 专家灯序(多专家模式) */}
      {mode === 'multi' && (
        <ul className="mx-auto mt-6 max-w-md space-y-1.5">
          {agents.map((a, i) => {
            const lit = elapsed >= AGENT_START + AGENT_STEP * (i + 1)
            const activeNow = !lit && elapsed >= AGENT_START + AGENT_STEP * i
            return (
              <li
                key={a}
                className={`flex items-center justify-between border-b border-ink-200 pb-1.5 text-xs transition-colors ${
                  lit ? 'text-ink-800' : activeNow ? 'text-ink-900' : 'text-ink-300'
                }`}
              >
                <span className="flex items-center gap-2">
                  <span
                    aria-hidden="true"
                    className={`inline-block h-1.5 w-1.5 ${lit ? 'bg-ink-900' : activeNow ? 'bg-press animate-pulse' : 'bg-ink-200'}`}
                  />
                  {AGENT_LABELS[a] ?? a}
                </span>
                {lit && <span className="text-2xs text-ink-400">✓ 完成</span>}
                {activeNow && <span className="text-2xs text-press">分析中…</span>}
              </li>
            )
          })}
        </ul>
      )}

      <p className="mt-6 text-center text-2xs text-ink-400">
        {mode === 'multi' ? '五路专家并行分析后终裁,约需 30-90 秒;关闭窗口即取消' : '单次调用,约需 5-20 秒;关闭窗口即取消'}
      </p>
    </div>
  )
}

/** 预测弹窗:进行中显示过程可视化,完成后显示预测版,失败显示原因 */
function PredictModal({
  match,
  mode,
  predicting,
  prediction,
  error,
  onClose,
}: {
  match: Match
  mode: 'single' | 'multi'
  predicting: boolean
  prediction: Prediction | null
  error: string | null
  onClose: () => void
}) {
  const homeName = match.home_team_zh || match.home_team
  const awayName = match.away_team_zh || match.away_team

  useEffect(() => {
    const h = (e: KeyboardEvent) => {
      if (e.key === 'Escape') onClose()
    }
    document.addEventListener('keydown', h)
    return () => document.removeEventListener('keydown', h)
  }, [onClose])

  return (
    <div
      className="fixed inset-0 z-50 flex items-start justify-center overflow-y-auto bg-ink-900/50 p-4 sm:items-center"
      role="dialog"
      aria-modal="true"
      aria-label={`预测 ${homeName} 对 ${awayName}`}
      onClick={e => {
        if (e.target === e.currentTarget) onClose()
      }}
    >
      <div className="relative w-full max-w-2xl bg-paper-50 shadow-2xl">
        {/* 弹窗报头 */}
        <div className="flex items-center justify-between border-b border-ink-900 bg-paper-100 px-4 py-2.5 sm:px-5">
          <h3 className="flex flex-wrap items-center gap-1.5 font-serif text-sm font-bold text-ink-900">
            预测版 ·
            <TeamSideTag side="home" />
            {homeName}
            <span>对</span>
            <TeamSideTag side="away" />
            {awayName}
          </h3>
          <button
            onClick={onClose}
            className="flex h-7 w-7 items-center justify-center text-ink-400 transition-colors hover:text-ink-900"
            aria-label="关闭"
          >
            <svg className="h-4 w-4" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
              <path d="M6.3 5.3a1 1 0 011.4 0L10 7.6l2.3-2.3a1 1 0 111.4 1.4L11.4 9l2.3 2.3a1 1 0 01-1.4 1.4L10 10.4l-2.3 2.3a1 1 0 01-1.4-1.4L8.6 9 6.3 6.7a1 1 0 010-1.4z" />
            </svg>
          </button>
        </div>

        {/* 弹窗体 */}
        {predicting ? (
          <PredictProgress mode={mode} />
        ) : error ? (
          <div className="px-5 py-10 text-center sm:px-8">
            <p className="font-serif text-sm font-bold text-press">预测失败</p>
            <p className="mx-auto mt-3 max-w-md whitespace-pre-wrap text-left text-xs leading-relaxed text-ink-600">
              {error}
            </p>
            <button onClick={onClose} className="btn btn-sm mt-6">关闭</button>
          </div>
        ) : prediction ? (
          <PredictionPanel prediction={prediction} match={match} mode={mode} embedded />
        ) : null}
      </div>
    </div>
  )
}

function PredictionPanel({
  prediction,
  match,
  mode,
  embedded = false,
}: {
  prediction: Prediction
  match: Match
  mode: 'single' | 'multi'
  /** 弹窗嵌入模式:弹窗已提供报头,这里省略自带版头 */
  embedded?: boolean
}) {
  const homeName = match.home_team_zh || match.home_team
  const awayName = match.away_team_zh || match.away_team
  const okReports = (prediction.agent_outputs ?? []).filter(r => r.status === 'ok')

  return (
    <article className={embedded ? 'bg-paper-50' : 'border border-ink-900 bg-paper-50'}>
      {/* 版头(嵌入模式由弹窗报头承担) */}
      {!embedded && (
      <div className="flex flex-wrap items-baseline justify-between gap-2 border-b border-ink-900 bg-paper-100 px-4 py-2.5 sm:px-5">
        <h3 className="flex flex-wrap items-center gap-1.5 font-serif text-sm font-bold text-ink-900">
          预测版 ·
          <TeamSideTag side="home" />
          {homeName}
          <span>对</span>
          <TeamSideTag side="away" />
          {awayName}
        </h3>
        <span className="text-2xs tabular-nums text-ink-500">
          {prediction.provider} / {prediction.model}
          {prediction.latency_ms !== null && ` · ${(prediction.latency_ms / 1000).toFixed(1)}s`}
        </span>
      </div>
      )}

      <div className="space-y-7 px-4 py-6 sm:px-5">
        {/* ── 预测比分:版面核心,大号宋体 ── */}
        <div className="text-center">
          <p className="font-serif text-5xl font-bold tabular-nums leading-none text-ink-900 sm:text-6xl">
            {prediction.pred_home_goals ?? '-'}
            <span className="mx-3 font-normal text-ink-300">:</span>
            {prediction.pred_away_goals ?? '-'}
          </p>
          <p className="mt-3 text-2xs tracking-[0.5em] text-ink-400">预测比分</p>
          {prediction.alt_pred_home_goals !== null && prediction.alt_pred_away_goals !== null && (
            <p className="mt-2 text-2xs tabular-nums text-ink-400">
              备选{' '}
              <span className="font-serif text-sm font-bold tabular-nums text-ink-600">
                {prediction.alt_pred_home_goals}<span className="mx-0.5 font-normal text-ink-300">:</span>{prediction.alt_pred_away_goals}
              </span>
            </p>
          )}
        </div>

        {/* ── 胜平负 ── */}
        <div className="border-y border-ink-200 py-4">
          <OutcomeLine pick={prediction.pred_1x2} confidence={prediction.subjective_confidence} />
        </div>

        {/* ── 元信息一行 ── */}
        <p className="text-center text-2xs text-ink-500">
          {mode === 'multi' ? `多专家模式 · ${okReports.length}/${prediction.agent_outputs?.length ?? 0} 路有效` : '单次模式'}
          {prediction.prompt_version && ` · prompt ${prediction.prompt_version}`}
          {prediction.latency_ms !== null && ` · 终裁耗时 ${(prediction.latency_ms / 1000).toFixed(1)} 秒`}
        </p>

        {/* ── 专家意见 ── */}
        {prediction.agent_outputs && prediction.agent_outputs.length > 0 && (
          <section>
            <div className="section-head flex flex-wrap items-baseline justify-between gap-1">
              <span>五路专家意见</span>
              {prediction.agent_weights && (
                <span className="font-sans text-2xs font-normal text-ink-500">
                  终裁权重:{Object.entries(prediction.agent_weights)
                    .sort((a, b) => b[1] - a[1])
                    .map(([k, v]) => `${AGENT_LABELS[k] ?? k} ${Math.round(v * 100)}%`)
                    .join(' / ')}
                </span>
              )}
            </div>

            <div>
              {prediction.agent_outputs.map((r, i) => (
                <AgentCard key={r.agent} report={r} no={CN_NUM[i] ?? String(i + 1)} />
              ))}
            </div>
          </section>
        )}

        {/* ── 终裁意见:引文式,红竖线 ── */}
        {prediction.reasoning && (
          <section>
            <h4 className="section-head mb-3">终裁意见</h4>
            <blockquote className="border-l-2 border-press pl-4">
              <p className="whitespace-pre-wrap font-serif text-sm leading-loose text-ink-700">
                {prediction.reasoning}
              </p>
            </blockquote>
          </section>
        )}

      </div>
    </article>
  )
}

const STATUS_BADGE: Record<string, { label: string; cls: string }> = {
  ok: { label: '正常', cls: 'text-ink-500' },
  no_data: { label: '无数据', cls: 'text-ink-400' },
  error: { label: '调用失败', cls: 'text-press' },
  parse_error: { label: '解析失败', cls: 'text-press' },
}

const SUFFICIENCY_LABEL: Record<string, string> = {
  high: '充分',
  medium: '一般',
  low: '偏少',
  none: '无',
}

/** 单路专家意见:汉字编号 + 细线行 */
function AgentCard({ report: r, no }: { report: AgentReport; no: string }) {
  const badge = STATUS_BADGE[r.status] ?? { label: r.status, cls: 'text-ink-400' }
  const inactive = r.status !== 'ok'

  return (
    <details className="group border-b border-ink-200">
      <summary className="flex cursor-pointer list-none items-baseline gap-2.5 px-1 py-3">
        <span className="font-serif text-sm text-ink-400">{no}</span>
        <span className="text-sm font-medium text-ink-900">{AGENT_LABELS[r.agent] ?? r.agent}</span>
        <span className={`text-2xs ${badge.cls}`}>{badge.label}</span>

        <span className="ml-auto flex items-baseline gap-3 text-2xs tabular-nums text-ink-500">
          {r.status === 'ok' && r.subjective_confidence !== null && (
            <span>信心 {Math.round(r.subjective_confidence * 100)}%</span>
          )}
          {r.status === 'ok' && r.probable_score && (
            <span className="font-serif font-bold text-ink-800">{r.probable_score}</span>
          )}
          <svg viewBox="0 0 20 20" className="h-3 w-3 self-center text-ink-300 transition-transform group-open:rotate-90" fill="currentColor" aria-hidden="true">
            <path d="M7.3 5.3a1 1 0 011.4 0l4 4a1 1 0 010 1.4l-4 4a1 1 0 01-1.4-1.4L10.6 10 7.3 6.7a1 1 0 010-1.4z" />
          </svg>
        </span>
      </summary>

      <div className="space-y-3 px-1 pb-4 pl-7">
        {/* 无数据 / 失败时给出明确说明,避免用户以为是空白 bug */}
        {inactive && (
          <p className="text-xs leading-relaxed text-ink-500">
            {r.status === 'no_data' && '该维度没有可用数据,已跳过 LLM 分析以节省额度(不影响其他专家)。'}
            {r.status === 'error' && '该专家调用失败,本次结论未纳入其视角(fail-open 设计,不阻断整体预测)。'}
            {r.status === 'parse_error' && '模型输出未通过格式校验,该报告已丢弃。'}
          </p>
        )}

        {!inactive && r.home_edge !== null && (
          <div>
            <div className="mb-1.5 flex items-baseline justify-between text-2xs">
              <span className="text-ink-500">主队优势</span>
              <span className={`font-semibold tabular-nums ${r.home_edge > 0 ? 'text-press' : r.home_edge < 0 ? 'text-ink-700' : 'text-ink-500'}`}>
                {r.home_edge > 0 ? '+' : ''}{r.home_edge.toFixed(2)}
              </span>
            </div>
            <EdgeBar value={r.home_edge} />
            <div className="mt-1 flex justify-between text-2xs text-ink-400">
              <span>利客队</span>
              <span>利主队</span>
            </div>
          </div>
        )}

        {r.analysis && (
          <p className="font-serif text-sm leading-loose text-ink-700">{r.analysis}</p>
        )}

        {r.key_evidence.length > 0 && (
          <ul className="space-y-1.5">
            {r.key_evidence.map((e, i) => (
              <li key={i} className="flex gap-2 text-xs leading-relaxed text-ink-600">
                <span className="flex-shrink-0 text-ink-300" aria-hidden="true">—</span>
                <span>{e}</span>
              </li>
            ))}
          </ul>
        )}

        {r.exp_home_goals !== null && r.exp_away_goals !== null && (
          <p className="text-xs text-ink-500">
            进球期望 <span className="font-serif font-bold tabular-nums text-ink-900">{r.exp_home_goals.toFixed(1)} - {r.exp_away_goals.toFixed(1)}</span>
          </p>
        )}

        {!inactive && (
          <p className="border-t border-ink-100 pt-2.5 text-2xs text-ink-400">
            数据充分度 {SUFFICIENCY_LABEL[r.data_sufficiency] ?? r.data_sufficiency}
            <span className="mx-2 text-ink-200">|</span>
            <span className="font-mono">{r.model}</span>
            {r.latency_ms !== null && <span className="ml-2 tabular-nums">{r.latency_ms}ms</span>}
          </p>
        )}
      </div>
    </details>
  )
}