import { useCallback, useEffect, useState } from 'react'
import { useTranslation } from 'react-i18next'
import { LLM_PROVIDERS, matchProvider } from './llmProviders'
import { Loader2, Play, Save, Sparkles, PlugZap, History, ShieldCheck } from 'lucide-react'
import { toast } from 'sonner'
import { ProGate } from '@/components/ProGate'
import { useLicense } from '@/hooks/useLicense'
import { PageContainer } from '@/components/PageContainer'
import { Button } from '@/components/ui/button'
import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
import { Input } from '@/components/ui/input'
import { Label } from '@/components/ui/label'
import { Switch } from '@/components/ui/switch'
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select'
import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs'
import { Textarea } from '@/components/ui/textarea'
import { Badge } from '@/components/ui/badge'
import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
import { aiApi, type AIAnalyzeResponse, type AIConfig, type AIConfigResponse, type AIRun } from '@/api/ai'
import { logsApi, type LogSource } from '@/api/logs'

const RANGE_PRESETS = [
  { key: '15m', minutes: 15 },
  { key: '1h', minutes: 60 },
  { key: '6h', minutes: 360 },
  { key: '24h', minutes: 1440 },
] as const

function fmtBytes(bytes: number): string {
  if (!bytes) return '0 B'
  const units = ['B', 'KB', 'MB', 'GB', 'TB']
  let value = bytes
  let index = 0
  while (value >= 1024 && index < units.length - 1) {
    value /= 1024
    index += 1
  }
  return `${value.toFixed(value >= 10 || index === 0 ? 0 : 1)} ${units[index]}`
}

function fmtNum(value: number): string {
  if (value >= 1e8) return `${(value / 1e8).toFixed(2)} 亿`
  if (value >= 1e4) return `${(value / 1e4).toFixed(1)} 万`
  return String(value)
}

export default function AiopsPage() {
  const { t } = useTranslation('aiops')
  const { pro } = useLicense()
  const [tab, setTab] = useState('analyze')

  // ── 分析 ──
  const [sources, setSources] = useState<LogSource[]>([])
  const [sourceId, setSourceId] = useState(0)
  const [rangeKey, setRangeKey] = useState<(typeof RANGE_PRESETS)[number]['key']>('15m')
  const [apps, setApps] = useState<string[]>([])
  const [app, setApp] = useState('')
  const [question, setQuestion] = useState('')
  const [running, setRunning] = useState(false)
  const [outcome, setOutcome] = useState<AIAnalyzeResponse | null>(null)
  const [promptOpen, setPromptOpen] = useState(false)
  const [enabled, setEnabled] = useState(false)

  // app 候选:长窗口(>1h)必须指定应用收窄聚合范围
  useEffect(() => {
    setApp('')
    setApps([])
    if (!sourceId) return
    let active = true
    logsApi.labelValues(sourceId, 'app')
      .then(list => { if (active) setApps(Array.isArray(list) ? list : []) })
      .catch(() => { if (active) setApps([]) })
    return () => { active = false }
  }, [sourceId])
  const rangeMinutes = RANGE_PRESETS.find(r => r.key === rangeKey)?.minutes ?? 15
  const needApp = rangeMinutes > 60

  // ── 配置 ──
  const [config, setConfig] = useState<AIConfig | null>(null)
  const [apiKeyInput, setApiKeyInput] = useState('')
  const [redactText, setRedactText] = useState('')
  const [saving, setSaving] = useState(false)
  const [testing, setTesting] = useState(false)
  const [usedToday, setUsedToday] = useState(0)

  // ── 历史 ──
  const [runs, setRuns] = useState<AIRun[]>([])
  const [runTotal, setRunTotal] = useState(0)
  const [runPage, setRunPage] = useState(1)
  const [runsLoading, setRunsLoading] = useState(false)
  const [detail, setDetail] = useState<AIRun | null>(null)
  const PAGE_SIZE = 20

  useEffect(() => {
    logsApi
      .sources()
      .then((res: { list?: LogSource[] }) => {
        const list = res?.list ?? []
        setSources(list)
        if (list.length > 0) setSourceId((prev: number) => prev || list[0].id)
      })
      .catch(() => toast.error('数据源列表加载失败'))
  }, [])

  const loadConfig = useCallback(() => {
    aiApi
      .getConfig()
      .then((res: AIConfigResponse) => {
        const cfg = res.config
        // 首次配置默认 DeepSeek + 最新 flash:用户只需填 API Key
        if (cfg && !cfg.baseUrl && !cfg.model) {
          const deepseek = LLM_PROVIDERS.find(p => p.id === 'deepseek')!
          cfg.baseUrl = deepseek.endpoint
          cfg.model = 'deepseek-flash'
        }
        setConfig(cfg)
        setEnabled(Boolean(res.config?.enabled))
        setRedactText((res.config?.redactExtra ?? []).join('\n'))
        setUsedToday(res.tokenUsedToday ?? 0)
      })
      .catch(() => {
        /* 非管理员访问配置会 403，属预期 */
      })
  }, [])

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

  const loadRuns = useCallback(
    (page: number) => {
      setRunsLoading(true)
      aiApi
        .runs(page, PAGE_SIZE)
        .then(res => {
          setRuns(res.list ?? [])
          setRunTotal(res.total ?? 0)
        })
        .catch(err => toast.error(err instanceof Error ? err.message : '历史加载失败'))
        .finally(() => setRunsLoading(false))
    },
    [],
  )

  useEffect(() => {
    if (tab === 'history') loadRuns(runPage)
  }, [tab, runPage, loadRuns])


  const runAnalysis = async () => {
    if (!sourceId) {
      toast.error('请先选择数据源')
      return
    }
    if (needApp && !app) {
      toast.error('超过 1 小时的分析必须指定应用：全命名空间长窗口聚合过慢')
      return
    }
    const end = Date.now()
    const start = end - rangeMinutes * 60 * 1000
    setRunning(true)
    setOutcome(null)
    try {
      const res = await aiApi.analyze({
        sourceId,
        start: start * 1e6,
        end: end * 1e6,
        question: question.trim() || undefined,
        app: app || undefined,
      })
      setOutcome(res)
      loadConfig()
    } catch (err) {
      toast.error(err instanceof Error ? err.message : '分析失败')
    } finally {
      setRunning(false)
    }
  }

  const saveConfig = async () => {
    if (!config) return
    setSaving(true)
    try {
      const res = await aiApi.saveConfig({
        ...config,
        apiKey: apiKeyInput.trim(),
        redactExtra: redactText
          .split('\n')
          .map(line => line.trim())
          .filter(Boolean),
      })
      setConfig(res.config)
      setEnabled(Boolean(res.config?.enabled))
      setApiKeyInput('')
      toast.success('配置已保存')
    } catch (err) {
      toast.error(err instanceof Error ? err.message : '保存失败')
    } finally {
      setSaving(false)
    }
  }

  const testConnection = async () => {
    setTesting(true)
    try {
      const res = await aiApi.testConfig({
        baseUrl: config?.baseUrl,
        model: config?.model,
        apiKey: apiKeyInput.trim() || undefined,
      })
      toast.success(t('config.testOk', { model: res.model, latency: (res.latencyMs / 1000).toFixed(1), tokens: res.tokensUsed }))
    } catch (err) {
      toast.error(err instanceof Error ? err.message : '连接失败')
    } finally {
      setTesting(false)
    }
  }

  const severityColor = (severity: string) => {
    if (severity === 'high') return 'bg-destructive/15 text-destructive'
    if (severity === 'medium') return 'bg-warning/15 text-warning'
    return 'bg-muted text-muted-foreground'
  }

  const totalPages = Math.max(1, Math.ceil(runTotal / PAGE_SIZE))

  if (!pro) return <ProGate featureKey="ai_ops" />
  return (
    <PageContainer title={t('title')} description={t('subtitle')}>
      <Tabs value={tab} onValueChange={setTab} className="space-y-4">
        <TabsList>
          <TabsTrigger value="analyze">
            <Sparkles className="mr-1.5 h-4 w-4" />
            {t('tabs.analyze')}
          </TabsTrigger>
          <TabsTrigger value="config">
            <PlugZap className="mr-1.5 h-4 w-4" />
            {t('tabs.config')}
          </TabsTrigger>
          <TabsTrigger value="history">
            <History className="mr-1.5 h-4 w-4" />
            {t('tabs.history')}
          </TabsTrigger>
        </TabsList>

        {/* ─────────── 分析 ─────────── */}
        <TabsContent value="analyze" className="space-y-4">
          {!enabled && (
            <div className="flex flex-wrap items-center gap-3 rounded-lg border border-warning/40 bg-warning/10 px-4 py-3 text-sm">
              <Sparkles className="size-4 shrink-0 text-warning" />
              <span className="flex-1">{t('analyze.notEnabled')}</span>
              <Button size="sm" variant="outline" onClick={() => setTab('config')}>{t('analyze.goConfig')}</Button>
            </div>
          )}

          <Card>
            <CardContent className="pt-4">
              <div className="grid gap-4 md:grid-cols-2 xl:grid-cols-4">
              <div className="min-w-40 space-y-1">
                <Label className="text-xs">{t('analyze.source')}</Label>
                <select
                  className="h-9 w-full rounded-md border bg-background px-2 text-sm"
                  value={sourceId}
                  onChange={e => setSourceId(Number(e.target.value))}
                >
                  {sources.map(s => (
                    <option key={s.id} value={s.id}>
                      {s.name}
                    </option>
                  ))}
                </select>
              </div>
              <div className="space-y-1">
                <Label className="text-xs">{t('analyze.range')}</Label>
                <div className="flex gap-1">
                  {RANGE_PRESETS.map(preset => (
                    <Button
                      key={preset.key}
                      type="button"
                      size="sm"
                      variant={rangeKey === preset.key ? 'default' : 'outline'}
                      className="h-9 px-3 text-xs"
                      onClick={() => setRangeKey(preset.key)}
                    >
                      {preset.key}
                    </Button>
                  ))}
                </div>
              </div>
              <div className="space-y-1">
                <Label className="text-xs">
                  {t('analyze.appScope')}
                  {needApp && <span className="ml-1 text-destructive">*</span>}
                </Label>
                <select
                  aria-label={t('analyze.appScope')}
                  className="h-9 min-w-40 rounded-md border bg-background px-3 text-sm"
                  value={app}
                  onChange={e => setApp(e.target.value)}
                >
                  <option value="">{needApp ? t('analyze.appRequired') : t('analyze.allApps')}</option>
                  {apps.map(a => <option key={a} value={a}>{a}</option>)}
                </select>
                {needApp && <p className="text-[11px] text-warning">{t('analyze.appScopeHint')}</p>}
              </div>
                <div className="space-y-1 xl:col-span-2">
                  <Label className="text-xs">{t('analyze.question')}</Label>
                  <Input
                    value={question}
                    placeholder={t('analyze.questionPlaceholder')}
                    onChange={e => setQuestion(e.target.value)}
                    className="h-9"
                  />
                </div>
              </div>
              <div className="mt-4 flex flex-wrap items-center justify-between gap-2 border-t pt-3">
                <p className="text-xs text-muted-foreground">{t('analyze.runHint')}</p>
                <Button onClick={runAnalysis} disabled={running || !enabled || (needApp && !app)} className="h-9">
                  {running ? <Loader2 className="mr-1.5 h-4 w-4 animate-spin" /> : <Play className="mr-1.5 h-4 w-4" />}
                  {running ? t('analyze.running') : t('analyze.run')}
                </Button>
              </div>
            </CardContent>
          </Card>

          {!outcome && !running && (
            <Card>
              <CardContent className="flex flex-col items-center justify-center gap-2 py-14 text-center">
                <Sparkles className="size-8 text-muted-foreground/40" />
                <p className="text-sm text-muted-foreground">{t('analyze.empty')}</p>
              </CardContent>
            </Card>
          )}

          {running && (
            <Card>
              <CardContent className="flex flex-col items-center justify-center gap-2 py-14 text-center">
                <Loader2 className="size-7 animate-spin text-primary" />
                <p className="text-sm font-medium">{t('analyze.running')}</p>
                <p className="text-xs text-muted-foreground">{t('analyze.runHint')}</p>
              </CardContent>
            </Card>
          )}

          {outcome && (
            <>
              {/* 本次消耗：让成本和延迟是可见的 */}
              <div className="flex flex-wrap items-center gap-x-5 gap-y-1 rounded-lg border bg-muted/30 px-4 py-2.5 text-xs">
                <span className="font-medium text-foreground">{t('analyze.lastRun')}</span>
                <span className="text-muted-foreground">{t('analyze.promptTokens')} <span className="tabular-nums text-foreground">{fmtNum(outcome.run.promptTokens)}</span></span>
                <span className="text-muted-foreground">{t('analyze.completionTokens')} <span className="tabular-nums text-foreground">{fmtNum(outcome.run.completionTokens)}</span></span>
                <span className="text-muted-foreground">{t('analyze.duration')} <span className="tabular-nums text-foreground">{(outcome.run.durationMs / 1000).toFixed(1)}s</span></span>
                <Button variant="link" size="sm" className="ml-auto h-auto p-0 text-xs" onClick={() => setPromptOpen(true)}>
                  {t('analyze.viewPrompt')}
                </Button>
              </div>

              <Card>
                <CardHeader className="pb-2">
                  <CardTitle className="text-base">{t('result.summary')}</CardTitle>
                </CardHeader>
                <CardContent className="whitespace-pre-wrap text-sm leading-relaxed">
                  {outcome.result.summary || t('commonEmpty')}
                </CardContent>
              </Card>

              <Card>
                <CardHeader className="pb-2">
                  <CardTitle className="text-base">{t('result.findings')}</CardTitle>
                </CardHeader>
                <CardContent className="space-y-3">
                  {(outcome.result.findings ?? []).length === 0 && (
                    <p className="text-sm text-muted-foreground">{t('result.noFindings')}</p>
                  )}
                  {(outcome.result.findings ?? []).map((finding, index) => (
                    <div key={index} className="rounded-md border p-3">
                      <div className="flex items-center gap-2">
                        <Badge className={`text-[10px] ${severityColor(finding.severity)}`}>
                          {finding.severity === 'high'
                            ? t('result.severityHigh')
                            : finding.severity === 'medium'
                              ? t('result.severityMedium')
                              : t('result.severityLow')}
                        </Badge>
                        <span className="text-sm font-medium">{finding.title}</span>
                      </div>
                      <p className="mt-1.5 text-xs text-muted-foreground">{finding.evidence}</p>
                    </div>
                  ))}
                </CardContent>
              </Card>

              <div className="grid gap-4 lg:grid-cols-2">
                <Card>
                  <CardHeader className="pb-2">
                    <CardTitle className="text-base">{t('result.actions')}</CardTitle>
                  </CardHeader>
                  <CardContent>
                    {(outcome.result.actions ?? []).length === 0 ? (
                      <p className="text-sm text-muted-foreground">{t('result.noActions')}</p>
                    ) : (
                      <ol className="list-decimal space-y-1 pl-5 text-sm">
                        {outcome.result.actions.map((action, index) => (
                          <li key={index}>{action}</li>
                        ))}
                      </ol>
                    )}
                  </CardContent>
                </Card>
                <Card>
                  <CardHeader className="pb-2">
                    <CardTitle className="flex items-center gap-1.5 text-base">
                      <ShieldCheck className="h-4 w-4" />
                      {t('result.unknowns')}
                    </CardTitle>
                  </CardHeader>
                  <CardContent>
                    {(outcome.result.unknowns ?? []).length === 0 ? (
                      <p className="text-sm text-muted-foreground">{t('result.noUnknowns')}</p>
                    ) : (
                      <ul className="list-disc space-y-1 pl-5 text-sm text-muted-foreground">
                        {outcome.result.unknowns.map((item, index) => (
                          <li key={index}>{item}</li>
                        ))}
                      </ul>
                    )}
                  </CardContent>
                </Card>
              </div>

              {/* 信号明细：让用户知道结论是基于什么算出来的 */}
              <Card>
                <CardHeader className="pb-2">
                  <CardTitle className="text-base">{t('signals.title')}</CardTitle>
                </CardHeader>
                <CardContent className="space-y-2 text-sm">
                  <div className="flex flex-wrap gap-x-6 gap-y-1 text-xs text-muted-foreground">
                    <span>
                      {t('signals.volume')}：<span className="text-foreground">{fmtBytes(outcome.signals.totalBytes)}</span>
                    </span>
                    <span>
                      {t('signals.entries')}：
                      <span className="text-foreground">
                        {outcome.signals.entriesExact ? fmtNum(outcome.signals.totalEntries) : t('signals.estimated')}
                      </span>
                    </span>
                    {outcome.signals.baseline && (
                      <span>
                        {t('signals.baseline')}：
                        <span
                          className={
                            outcome.signals.baseline.deltaPercent > 20
                              ? 'text-destructive'
                              : outcome.signals.baseline.deltaPercent < -20
                                ? 'text-warning'
                                : 'text-foreground'
                          }
                        >
                          {outcome.signals.baseline.deltaPercent > 0 ? '+' : ''}
                          {outcome.signals.baseline.deltaPercent.toFixed(1)}%
                        </span>
                      </span>
                    )}
                    <span>
                      {t('signals.alerts')}：{outcome.signals.alerts.length}
                    </span>
                  </div>

                  {outcome.signals.apps.length > 0 && (
                    <div className="overflow-hidden rounded-md border">
                      <table className="w-full text-xs">
                        <thead className="bg-muted/40 text-muted-foreground">
                          <tr>
                            <th className="px-2 py-1.5 text-left">#</th>
                            <th className="px-2 py-1.5 text-left">{t('signals.apps')}</th>
                            <th className="px-2 py-1.5 text-right">{t('signals.entries')}</th>
                            <th className="px-2 py-1.5 text-right">%</th>
                          </tr>
                        </thead>
                        <tbody>
                          {outcome.signals.apps.slice(0, 10).map((app, index) => (
                            <tr key={`${app.namespace}/${app.app}`} className="border-t">
                              <td className="px-2 py-1.5 text-muted-foreground">{index + 1}</td>
                              <td className="px-2 py-1.5 font-mono">
                                {app.app || '-'}
                                <span className="ml-1 text-muted-foreground">/{app.namespace}</span>
                              </td>
                              <td className="px-2 py-1.5 text-right tabular-nums">{fmtNum(app.entries)}</td>
                              <td className="px-2 py-1.5 text-right tabular-nums text-muted-foreground">{app.share}</td>
                            </tr>
                          ))}
                        </tbody>
                      </table>
                    </div>
                  )}

                  {(outcome.warnings ?? []).length > 0 && (
                    <ul className="list-disc space-y-0.5 pl-5 text-xs text-muted-foreground">
                      {outcome.warnings.map((warning, index) => (
                        <li key={index}>{warning}</li>
                      ))}
                    </ul>
                  )}
                </CardContent>
              </Card>
            </>
          )}
        </TabsContent>

        {/* ─────────── 模型配置 ─────────── */}
        <TabsContent value="config" className="space-y-4">
          {!config ? (
            <Card>
              <CardContent className="py-8 text-center text-sm text-muted-foreground">
                仅管理员可修改模型配置
              </CardContent>
            </Card>
          ) : (
            <Card>
              <CardHeader className="pb-3">
                <CardTitle className="text-base">模型接入（OpenAI 兼容）</CardTitle>
              </CardHeader>
              <CardContent className="space-y-4">
                <div className="flex items-center gap-3">
                  <Switch
                    checked={Boolean(config.enabled)}
                    onCheckedChange={checked => setConfig({ ...config, enabled: checked })}
                  />
                  <div>
                    <div className="text-sm">{t('config.enabled')}</div>
                    <div className="text-xs text-muted-foreground">{t('config.enabledHint')}</div>
                  </div>
                  <span className="ml-auto text-xs text-muted-foreground">
                    {t('config.usedToday', { used: fmtNum(usedToday) })}
                  </span>
                </div>

                <div className="grid gap-4 sm:grid-cols-2">
                  <div className="space-y-1">
                    <Label className="text-xs">{t('config.provider')}</Label>
                    <Select
                      value={matchProvider(config.baseUrl)}
                      onValueChange={value => {
                        const p = LLM_PROVIDERS.find(x => x.id === value)
                        if (!p) return
                        setConfig({ ...config, baseUrl: p.endpoint, model: p.models[0] && value !== 'custom' ? p.models[0] : config.model })
                      }}
                    >
                      <SelectTrigger><SelectValue /></SelectTrigger>
                      <SelectContent>
                        {LLM_PROVIDERS.map(p => (
                          <SelectItem key={p.id} value={p.id}>{p.name}</SelectItem>
                        ))}
                      </SelectContent>
                    </Select>
                    <p className="text-[11px] text-muted-foreground">{t('config.providerSelectHint')}</p>
                  </div>
                  <div className="space-y-1">
                    <Label className="text-xs">{t('config.model')}</Label>
                    {((LLM_PROVIDERS.find(p => p.id === matchProvider(config.baseUrl))?.models ?? ['deepseek-flash'])).includes(config.model) || !config.model ? (
                    <Select
                      value={config.model || ((LLM_PROVIDERS.find(p => p.id === matchProvider(config.baseUrl))?.models ?? ['deepseek-flash']))[0]}
                      onValueChange={value => {
                        if (value === '__custom__') { setConfig({ ...config, model: '' }); return }
                        setConfig({ ...config, model: value })
                      }}
                    >
                      <SelectTrigger><SelectValue /></SelectTrigger>
                      <SelectContent>
                        {((LLM_PROVIDERS.find(p => p.id === matchProvider(config.baseUrl))?.models ?? ['deepseek-flash'])).map(m => (
                          <SelectItem key={m} value={m}>{m}</SelectItem>
                        ))}
                        <SelectItem value="__custom__">{t('config.customModel')}</SelectItem>
                      </SelectContent>
                    </Select>
                    ) : (
                    <Input value={config.model} placeholder="model-name" onChange={e => setConfig({ ...config, model: e.target.value })} />
                    )}
                    <p className="text-[11px] text-muted-foreground">{t('config.modelHint')}</p>
                  </div>
                  {matchProvider(config.baseUrl) === 'custom' && (
                  <div className="space-y-1 sm:col-span-2">
                    <Label className="text-xs">{t('config.baseUrl')}</Label>
                    <Input
                      value={config.baseUrl}
                      placeholder="https://api.deepseek.com/v1"
                      onChange={e => setConfig({ ...config, baseUrl: e.target.value })}
                    />
                    <p className="text-[11px] text-muted-foreground">{t('config.baseUrlHint')}</p>
                  </div>
                  )}
                  <div className="space-y-1">
                    <Label className="text-xs">{t('config.apiKey')}</Label>
                    <Input
                      type="password"
                      value={apiKeyInput}
                      placeholder={config.apiKey || 'sk-...'}
                      onChange={e => setApiKeyInput(e.target.value)}
                    />
                    <p className="text-[11px] text-muted-foreground">{t('config.apiKeyHint')}</p>
                  </div>
                  <details className="sm:col-span-2 rounded-lg border px-3 py-2">
                    <summary className="cursor-pointer text-xs font-medium text-muted-foreground">{t('config.advanced')}</summary>
                    <div className="mt-3 grid gap-4">
                  <div className="grid grid-cols-3 gap-2">
                    <div className="space-y-1">
                      <Label className="text-xs">{t('config.temperature')}</Label>
                      <Input
                        type="number"
                        step="0.1"
                        min="0"
                        max="1"
                        value={config.temperature}
                        onChange={e => setConfig({ ...config, temperature: Number(e.target.value) })}
                      />
                    </div>
                    <div className="space-y-1">
                      <Label className="text-xs">{t('config.maxTokens')}</Label>
                      <Input
                        type="number"
                        value={config.maxTokens}
                        onChange={e => setConfig({ ...config, maxTokens: Number(e.target.value) })}
                      />
                    </div>
                    <div className="space-y-1">
                      <Label className="text-xs">{t('config.timeoutSec')}</Label>
                      <Input
                        type="number"
                        value={config.timeoutSec}
                        onChange={e => setConfig({ ...config, timeoutSec: Number(e.target.value) })}
                      />
                    </div>
                  </div>
                  <div className="space-y-1">
                    <Label className="text-xs">{t('config.dailyTokenCap')}</Label>
                    <Input
                      type="number"
                      value={config.dailyTokenCap}
                      onChange={e => setConfig({ ...config, dailyTokenCap: Number(e.target.value) })}
                    />
                    <p className="text-[11px] text-muted-foreground">{t('config.dailyTokenCapHint')}</p>
                  </div>
                  <div className="space-y-1">
                    <Label className="text-xs">{t('config.redactExtra')}</Label>
                    <Textarea
                      rows={3}
                      value={redactText}
                      onChange={e => setRedactText(e.target.value)}
                      className="font-mono text-xs"
                    />
                    <p className="text-[11px] text-muted-foreground">{t('config.redactExtraHint')}</p>
                  </div>
                    </div>
                  </details>
                </div>

                {/* 顺序按实际操作流：先「测试连接」确认能通，再「保存配置」 */}
                <div className="flex gap-2">
                  <Button variant="outline" onClick={testConnection} disabled={testing}>
                    {testing ? (
                      <Loader2 className="mr-1.5 h-4 w-4 animate-spin" />
                    ) : (
                      <PlugZap className="mr-1.5 h-4 w-4" />
                    )}
                    {testing ? t('config.testing') : t('config.test')}
                  </Button>
                  <Button onClick={saveConfig} disabled={saving}>
                    {saving ? <Loader2 className="mr-1.5 h-4 w-4 animate-spin" /> : <Save className="mr-1.5 h-4 w-4" />}
                    {t('config.save')}
                  </Button>
                </div>
              </CardContent>
            </Card>
          )}
        </TabsContent>

        {/* ─────────── 历史 ─────────── */}
        <TabsContent value="history" className="space-y-3">
          <Card>
            <CardContent className="p-0">
              <table className="w-full text-xs">
                <thead className="bg-muted/40 text-muted-foreground">
                  <tr>
                    <th className="px-3 py-2 text-left">{t('history.time')}</th>
                    <th className="px-3 py-2 text-left">{t('history.user')}</th>
                    <th className="px-3 py-2 text-left">{t('history.source')}</th>
                    <th className="px-3 py-2 text-right">{t('history.range')}</th>
                    <th className="px-3 py-2 text-left">{t('history.status')}</th>
                    <th className="px-3 py-2 text-right">{t('history.tokens')}</th>
                    <th className="px-3 py-2 text-right">{t('history.duration')}</th>
                  </tr>
                </thead>
                <tbody>
                  {runsLoading && (
                    <tr>
                      <td colSpan={7} className="px-3 py-6 text-center text-muted-foreground">
                        <Loader2 className="mx-auto h-4 w-4 animate-spin" />
                      </td>
                    </tr>
                  )}
                  {!runsLoading && runs.length === 0 && (
                    <tr>
                      <td colSpan={7} className="px-3 py-6 text-center text-muted-foreground">
                        {t('history.empty')}
                      </td>
                    </tr>
                  )}
                  {!runsLoading &&
                    runs.map(run => (
                      <tr
                        key={run.id}
                        className="cursor-pointer border-t hover:bg-muted/40"
                        onClick={() => setDetail(run)}
                      >
                        <td className="px-3 py-2 text-muted-foreground">
                          {new Date(run.createdAt).toLocaleString()}
                        </td>
                        <td className="px-3 py-2">{run.username || '-'}</td>
                        <td className="px-3 py-2">{run.sourceName}</td>
                        <td className="px-3 py-2 text-right tabular-nums">{run.rangeMinutes}m</td>
                        <td className="px-3 py-2">
                          <Badge
                            className={`text-[10px] ${
                              run.status === 'ok'
                                ? 'bg-success/15 text-success'
                                : run.status === 'quota-exceeded'
                                  ? 'bg-warning/15 text-warning'
                                  : 'bg-destructive/15 text-destructive'
                            }`}
                          >
                            {run.status === 'ok'
                              ? t('history.statusOk')
                              : run.status === 'quota-exceeded'
                                ? t('history.statusQuota')
                                : t('history.statusFailed')}
                          </Badge>
                        </td>
                        <td className="px-3 py-2 text-right tabular-nums">
                          {fmtNum(run.promptTokens + run.completionTokens)}
                        </td>
                        <td className="px-3 py-2 text-right tabular-nums">{(run.durationMs / 1000).toFixed(1)}s</td>
                      </tr>
                    ))}
                </tbody>
              </table>
            </CardContent>
          </Card>

          <div className="flex items-center justify-between text-xs text-muted-foreground">
            <span>
              共 {runTotal} 条 · 第 {runPage}/{totalPages} 页
            </span>
            <div className="flex gap-1">
              <Button
                size="sm"
                variant="outline"
                className="h-7 px-2 text-xs"
                disabled={runPage <= 1}
                onClick={() => setRunPage(page => Math.max(1, page - 1))}
              >
                上一页
              </Button>
              <Button
                size="sm"
                variant="outline"
                className="h-7 px-2 text-xs"
                disabled={runPage >= totalPages}
                onClick={() => setRunPage(page => page + 1)}
              >
                下一页
              </Button>
            </div>
          </div>
        </TabsContent>
      </Tabs>

      {/* 发给模型的完整内容 */}
      <Dialog open={promptOpen} onOpenChange={setPromptOpen}>
        <DialogContent className="max-w-3xl">
          <DialogHeader>
            <DialogTitle>{t('analyze.promptTitle')}</DialogTitle>
          </DialogHeader>
          <p className="text-xs text-muted-foreground">{t('analyze.promptHint')}</p>
          <pre className="max-h-[60vh] overflow-auto whitespace-pre-wrap rounded-md bg-muted/40 p-3 text-xs">
            {outcome?.prompt ?? ''}
          </pre>
        </DialogContent>
      </Dialog>

      {/* 历史详情 */}
      <Dialog open={Boolean(detail)} onOpenChange={open => !open && setDetail(null)}>
        <DialogContent className="max-w-3xl">
          <DialogHeader>
            <DialogTitle>{t('history.detail')}</DialogTitle>
          </DialogHeader>
          {detail && (
            <div className="space-y-3 text-sm">
              <div className="flex flex-wrap gap-x-6 gap-y-1 text-xs text-muted-foreground">
                <span>{new Date(detail.createdAt).toLocaleString()}</span>
                <span>{detail.username}</span>
                <span>{detail.sourceName}</span>
                <span>{detail.model}</span>
                <span>
                  {detail.promptTokens}+{detail.completionTokens} tokens
                </span>
                <span>{(detail.durationMs / 1000).toFixed(1)}s</span>
              </div>
              {detail.error && <p className="text-xs text-destructive">{detail.error}</p>}
              <pre className="max-h-[55vh] overflow-auto whitespace-pre-wrap rounded-md bg-muted/40 p-3 text-xs">
                {detail.promptPayload || detail.conclusion}
              </pre>
            </div>
          )}
        </DialogContent>
      </Dialog>
    </PageContainer>
  )
}