Agent-System-Frontend/src/components/Workbench.tsx

// 右栏终态（提案 T4/D25 → 预览双落位）：收件箱/预览两页签 + 「当前任务」常驻卡。
// 预览页签（裁定 D4）承载右栏轻预览：FilePreview compact 模式，边聊边看。
import { store, useStore } from '../store'
import type { Run } from '../contracts'
import { InboxList, pendingCount, FilePreview, type ActivityCard, type DocBridge } from '@ui'
import { Icon } from '@ui'
import { api } from '../api'

// 工件解析/打开注入：渲染器纯展示，doc-ref 词汇经此桥接本仓状态（D29）。
// 打开语义走 requestPreview 唯一入口（阶段③ 收敛：默认右栏轻预览）。
export const docBridge: DocBridge = {
  resolveDoc: id => store.getState().artifacts.find(a => a.id === id),
  onOpenDoc: id => {
    const art = store.getState().artifacts.find(a => a.id === id)
    if (art) store.requestPreview(art)
  },
}

const inboxCallbacks = {
  onAction: (c: ActivityCard, id: string) => store.cardAction(c, id),
  onPin: (c: ActivityCard, p: boolean) => store.cardPin(c, p),
  onDismiss: (c: ActivityCard) => store.cardDismiss(c),
  onLocate: (c: ActivityCard) => store.locateMessage(c.anchorMessageId),
  onArchive: (c: ActivityCard) => store.cardToProject(c),
}

/** 项目收件箱视图（CF3/D49/D51）：项目级卡片 ∪ 其他会话待办（done 不聚合）。 */
function ProjectInbox({ cards }: { cards: ActivityCard[] }) {
  const own = cards.filter(c => !c.conversationId)
  const cross = cards.filter(c => !!c.conversationId)
  if (cards.length === 0) {
    return <div className="inbox-empty">项目收件箱为空——「留档到项目」的产物卡与其他会话的待办会聚合在这里。</div>
  }
  return (
    <>
      <div className="inbox-zone-label">📁 项目级卡片（跨会话可见）</div>
      {own.length > 0
        ? <InboxList cards={own} callbacks={inboxCallbacks} docBridge={docBridge} />
        : <div className="inbox-empty" style={{ padding: '4px 14px' }}>暂无——会话卡点 🗂 即留档至此</div>}
      {cross.length > 0 && (
        <>
          <div className="inbox-zone-label">🕓 其他会话待办</div>
          <InboxList cards={cross} callbacks={inboxCallbacks} docBridge={docBridge} showPinnedZone={false} />
        </>
      )}
    </>
  )
}

export function Workbench() {
  const cards = useStore(s => s.cards)
  const plan = useStore(s => s.plan)
  const todos = useStore(s => s.todos)
  const inboxScope = useStore(s => s.inboxScope)
  const projectCards = useStore(s => s.projectCards)
  const pending = pendingCount(cards) + pendingCount(projectCards)
  const rightTab = useStore(s => s.ui.rightTab)
  const railId = useStore(s => s.ui.railPreviewId)
  const railArtifact = useStore(s => (railId ? s.artifacts.find(a => a.id === railId) : undefined))

  const showPreview = rightTab === 'preview'
  return (
    <>
      <div className="tabs">
        <button className={`tab ${!showPreview ? 'active' : ''}`} onClick={() => store.setUI({ rightTab: 'inbox' })}
          title="收件箱">收件箱{pending > 0 ? ` ${pending}` : ''}</button>
        <button className={`tab ${showPreview ? 'active' : ''}`} onClick={() => store.railPreview(railArtifact ?? null)}
          title="预览（右栏轻预览）"><Icon name="eye" size={13} /> 预览</button>
        <span className="spacer" style={{ flex: 1 }} />
        <button className="tab tab-action" title="收纳已完成卡（done→关闭；已确认卡留痕不动）" onClick={() => store.tidyCards()}><Icon name="check" size={13} /> 收纳</button>
        <button className="tab" title="收起收件箱" onClick={store.toggleRight}><Icon name="chevron-right" size={14} /></button>
      </div>
      {showPreview ? (
        <div className="tab-body" data-rail-preview="">
          {railArtifact ? (
            <>
              <div className="rail-preview-head">
                <span className="rp-name" title={railArtifact.name}>{railArtifact.name}</span>
                <span className="spacer" style={{ flex: 1 }} />
                <button className="icon-btn" title="全屏预览（唯一大窗落位）" onClick={() => store.requestPreview(railArtifact, 'full')}><Icon name="eye" size={14} /></button>
                <a className="icon-btn" title="下载" href={api.artifactDownloadUrl(railArtifact.id)} download={railArtifact.name}><Icon name="download" size={14} /></a>
                <button className="icon-btn" title="关闭预览" onClick={() => store.railPreview(null)}><Icon name="x" size={14} /></button>
              </div>
              <FilePreview compact source={{
                kind: 'artifact',
                id: railArtifact.id,
                name: railArtifact.name,
                mime: railArtifact.mime,
                contentUrl: api.artifactContentUrl(railArtifact.id),
                downloadUrl: api.artifactDownloadUrl(railArtifact.id),
              }} />
            </>
          ) : <div className="empty-note" style={{ padding: 14 }}>点消息里的工件卡片或右侧工件面板——文件会在这里边聊边看（md/图片/pdf/Office/代码均可）</div>}
        </div>
      ) : (
        <div className="tab-body">
          <CurrentTaskCard plan={plan} todos={todos} />
          <div className="inbox-scope" role="tablist" aria-label="收件箱范围">
            <button className={inboxScope === 'conv' ? 'active' : ''} onClick={() => store.setInboxScope('conv')}>本会话</button>
            <button className={inboxScope === 'project' ? 'active' : ''} onClick={() => store.setInboxScope('project')}>
              项目{pendingCount(projectCards) > 0 ? ` ${pendingCount(projectCards)}` : ''}
            </button>
          </div>
          {inboxScope === 'project'
            ? <ProjectInbox cards={projectCards} />
            : <InboxList cards={cards} docBridge={docBridge} callbacks={inboxCallbacks} />}
        </div>
      )}
    </>
  )
}

/** 当前任务常驻卡（D25 R4）：计划+待办合成一张卡，钉在收件箱顶部——右栏只回答"现在要我做什么"。 */
export function CurrentTaskCard({ plan, todos }: {
  plan: { title: string; steps: { id: string; text: string; status: string; agentRun?: string }[] } | null
  todos: { items: { id: string; text: string; status: string }[] } | null
}) {
  const steps = plan?.steps ?? []
  const items = todos?.items ?? []
  if (steps.length === 0 && items.length === 0) return null
  const done = [...steps, ...items].filter(x => x.status === 'done' || x.status === 'completed').length
  const total = steps.length + items.length
  return (
    <div className="current-task" data-testid="current-task">
      <div className="ct-head">
        <span className="lamp lamp-ok">●</span>
        <span className="ct-title">{plan?.title ?? '当前任务'}</span>
        <span className="ct-progress">{done}/{total}</span>
      </div>
      {steps.map(s => (
        <div key={s.id} className={`step ${s.status}`}>
          <StatusIcon status={s.status} />
          <span style={{ flex: 1 }}>{s.text}</span>
          {s.agentRun && <span className="status-dot status-completed" title="子代理执行" />}
        </div>
      ))}
      {items.map(t => (
        <div key={t.id} className={`step ${t.status}`}>
          <StatusIcon status={t.status} />
          <span>{t.text}</span>
        </div>
      ))}
    </div>
  )
}

export function StatusIcon({ status }: { status?: string }) {
  if (status === 'done' || status === 'completed') return <span style={{ color: 'var(--ok)' }}>●</span>
  if (status === 'in_progress' || status === 'running') return <span style={{ color: 'var(--accent)' }}>◐</span>
  if (status === 'skipped') return <span>◌</span>
  return <span style={{ color: 'var(--text-faint)' }}>○</span>
}

/** 代理行（工作区弹层复用；点击进 AgentTracker）。 */
export function AgentRow({ run, depth }: { run: Run; depth: number }) {
  const label = run.kind === 'subagent' ? `🤖 ${run.agentName || '子代理'}` : '💬 对话任务'
  return (
    <div className="agent-row" style={{ paddingLeft: 8 + depth * 18 }} onClick={() => store.openTracker(run.id)}>
      <span className={`status-dot status-${run.status}`} />
      <span style={{ flex: 1, overflow: 'hidden', textOverflow: 'ellipsis' }}>{label}</span>
      <span style={{ fontSize: 'var(--fs-ui-xs)', color: 'var(--text-faint)' }}>{run.status}</span>
    </div>
  )
}