import { Download, MoonStar, PackageOpen, Pencil, ShieldCheck, Sparkles, Square, Terminal, UserRoundMinus, UserRoundPlus, WandSparkles } from "lucide-react";
import { type FormEvent, useCallback, useEffect, useMemo, useState } from "react";

import { platformApiClient } from "../api/client";
import type {
  ConfigDiffLineResponse,
  ArtifactResponse,
  BackupResponse,
  GamePluginResponse,
  JobResponse,
  LogStreamResponse,
  ServerConfigDiffPreviewResponse,
  ServerConfigResponse,
  ServerInstanceResponse,
  ServerMemberResponse,
  ServerMetricsResponse,
  ServerDeploymentResponse,
  MetricSampleResponse,
  RemoteAdapterDeclarationResponse,
  RunEndpointResponse
} from "../api/types";
import { ConfirmDialog, DiffView, UsageMeter } from "../components/OperationControls";
import { ProductionGovernancePanel } from "../components/ProductionGovernancePanel";
import { SourceRCONCommandPanel } from "../components/SourceRCONCommandPanel";
import { DiagnosticSummary, EmptyState, ErrorState, LoadingState, ResultBadge } from "../components/StateViews";
import type { PageComponentProps } from "../contracts/page";
import { jobCapabilityLabel } from "../contracts/jobPresentation";
import { canStartServer, canStopServer, runtimeObservationFreshness, serverMetadataFormFromInstance, type ServerMetadataFormState } from "../contracts/serverManagement";
import { ServerManagementTerminalDrawer } from "../components/ServerLiveOperations";
import {
  serverDetailSections,
  serverIsOnline,
  isPlatformAdmin,
  type ConfigDiffView,
  type LlmSuggestionView,
  type ServerDetailSection
} from "../contracts/workspace";
import {
  serverLifecycleCommandRequest,
  serverMetadataUpdateRequestFromForm
} from "../schemas/serverManagement";
import { diffHasChanges } from "../utils/diff";
import { downloadArtifactReference, safeArtifactError, safeArtifactFilename } from "../utils/artifactTransfer";
import { cx } from "../utils/classes";
import { stateLabel, statusClass } from "./ServersPage";
import { PluginPageHostPage } from "./PluginPageHostPage";
import { appendLiveLogEntries, entryFromServerLogEvent, mergeLogStreams, parseLogStreamEvent, parseServerLogEvent, streamFromServerLogEvent, type LiveLogEntry } from "../utils/logEvents";

type LoadState<T> = { status: "loading" } | { status: "error"; reason: string } | { status: "ready"; data: T };

const defaultConfigKey = "server.properties";
const serverDetailRefreshMs = 5000;
const serverMetricFreshMs = 30000;

export function ServerDetailPage(props: PageComponentProps) {
  const { session, params, operations, onNavigate } = props;
  const serverId = params.serverId ?? "";
  const [section, setSection] = useState<ServerDetailSection>("logs");
  const [instance, setInstance] = useState<LoadState<ServerInstanceResponse>>({ status: "loading" });
  const [metrics, setMetrics] = useState<ServerMetricsResponse | null>(null);
  const [plugins, setPlugins] = useState<GamePluginResponse[]>([]);
  const [jobs, setJobs] = useState<JobResponse[]>([]);
  const [artifacts, setArtifacts] = useState<ArtifactResponse[]>([]);
  const [metricHistory, setMetricHistory] = useState<MetricSampleResponse[]>([]);
  const [backups, setBackups] = useState<BackupResponse[]>([]);
  const [remoteAdapters, setRemoteAdapters] = useState<RemoteAdapterDeclarationResponse[]>([]);
  const [runEndpoint, setRunEndpoint] = useState<RunEndpointResponse | undefined>();
  const [deployment, setDeployment] = useState<LoadState<ServerDeploymentResponse>>({ status: "loading" });
  const [terminalOpen, setTerminalOpen] = useState(false);
  const [confirm, setConfirm] = useState<null | { title: string; description: string; danger?: boolean; run: () => Promise<void> }>(null);
  const [confirmBusy, setConfirmBusy] = useState(false);

  const refresh = useCallback(async () => {
    if (!serverId) {
      setInstance({ status: "error", reason: "缺少服务器 ID" });
      return;
    }
    setInstance({ status: "loading" });
    try {
      const [detail, pluginResponse, jobResponse, deploymentResponse, metricHistoryResponse, backupResponse, adapterResponse, endpointResponse] = await Promise.all([
        platformApiClient.getServerInstance(serverId),
        platformApiClient.listGamePlugins(),
        platformApiClient.listJobs(serverId),
        platformApiClient
          .getServerDeployment(serverId)
          .then((data): LoadState<ServerDeploymentResponse> => ({ status: "ready", data }))
          .catch((error): LoadState<ServerDeploymentResponse> => ({ status: "error", reason: error instanceof Error ? error.message : "部署定义加载失败" })),
        platformApiClient.listMetricHistory(serverId).catch(() => ({ items: [], count: 0 })),
        platformApiClient.listBackups(serverId).catch(() => ({ items: [], count: 0 })),
        platformApiClient.listRemoteAdapters(serverId).catch(() => ({ items: [], count: 0 })),
        platformApiClient.listRunEndpoints().catch(() => ({ items: [], count: 0 }))
      ]);
      setInstance({ status: "ready", data: detail });
      setPlugins(pluginResponse.items);
      setJobs(jobResponse.items);
      setDeployment(deploymentResponse);
      setMetricHistory(metricHistoryResponse.items);
      setBackups(backupResponse.items);
      setRemoteAdapters(adapterResponse.items);
      setRunEndpoint(endpointResponse.items.find((endpoint) => endpoint.id === detail.runEndpointId));
      const artifactLists = await Promise.all(
        jobResponse.items.slice(0, 20).map((job) =>
          platformApiClient
            .listArtifacts({ ownerKind: "job", ownerId: job.id, state: "available" })
            .then((response) => response.items)
            .catch(() => [] as ArtifactResponse[])
        )
      );
      setArtifacts(uniqueArtifacts(artifactLists.flat()));
    } catch (error) {
      setInstance({ status: "error", reason: error instanceof Error ? error.message : "加载失败" });
      setArtifacts([]);
      setRunEndpoint(undefined);
      setDeployment({ status: "error", reason: "部署定义加载失败" });
      setMetricHistory([]);
      setBackups([]);
      setRemoteAdapters([]);
    }
    try {
      const metricsResponse = await platformApiClient.listServerMetrics();
      setMetrics(metricsResponse.items.find((item) => item.serverInstanceId === serverId) ?? null);
    } catch {
      setMetrics(null);
    }
  }, [serverId]);

  useEffect(() => {
    void refresh();
  }, [refresh]);

  const refreshOperationalState = useCallback(async () => {
    if (!serverId) return;
    try {
      const [detail, jobResponse, metricsResponse, endpointResponse] = await Promise.all([
        platformApiClient.getServerInstance(serverId),
        platformApiClient.listJobs(serverId),
        platformApiClient.listServerMetrics(),
        platformApiClient.listRunEndpoints()
      ]);
      setInstance({ status: "ready", data: detail });
      setJobs(jobResponse.items);
      setMetrics(metricsResponse.items.find((item) => item.serverInstanceId === serverId) ?? null);
      setRunEndpoint(endpointResponse.items.find((endpoint) => endpoint.id === detail.runEndpointId));
    } catch {
      setMetrics(null);
    }
  }, [serverId]);

  useEffect(() => {
    const timer = window.setInterval(() => void refreshOperationalState(), serverDetailRefreshMs);
    return () => window.clearInterval(timer);
  }, [refreshOperationalState]);

  const serverOperations = useMemo(
    () => operations.operations.filter((operation) => operation.targetId === serverId || operation.targetId.startsWith(`${serverId}:`)),
    [operations.operations, serverId]
  );
  const canManageServers = session.capabilities.includes("servers.manage");
  const readyPlugin = instance.status === "ready" ? plugins.find((plugin) => plugin.id === instance.data.pluginId) : undefined;
  const detailFreshness = instance.status === "ready" ? runtimeObservationFreshness(instance.data, runEndpoint) : "unverified";
  const detailStateText = instance.status === "ready" && detailFreshness === "fresh" ? stateLabel(instance.data.state) : instance.status === "ready" ? `最后观测：${stateLabel(instance.data.state)}（Run 未验证）` : "未验证";
  const detailSections = useMemo(() => serverDetailSectionEntries(readyPlugin), [readyPlugin]);

  useEffect(() => {
    if (!params.routeKey || !readyPlugin?.pages.some((page) => page.key === params.routeKey)) return;
    setSection(`plugin:${params.routeKey}`);
  }, [params.routeKey, readyPlugin]);

  useEffect(() => {
    if (detailSections.some((entry) => entry.id === section)) return;
    setSection(detailSections[0]?.id ?? "logs");
  }, [detailSections, section]);

  function requestLifecycle(current: ServerInstanceResponse, action: "start" | "stop") {
    setConfirm({
      title: action === "start" ? "启动服务器" : "停止服务器",
      description:
        action === "start"
          ? `确认启动服务器 ${current.name}（${current.id}）？`
          : `停止服务器 ${current.name}（${current.id}）会断开所有在线玩家，确认继续？`,
      danger: action === "stop",
      run: async () => {
        const operationId = operations.begin({
          intent: action === "start" ? "启动服务器" : "停止服务器",
          targetKind: "server",
          targetId: current.id,
          requester: session.displayName
        });
        try {
          const result =
            action === "start"
              ? await platformApiClient.startServerInstance(current.id, serverLifecycleCommandRequest(current, "start"))
              : await platformApiClient.stopServerInstance(current.id, serverLifecycleCommandRequest(current, "stop"));
          operations.succeed(operationId, `任务 ${result.job.id}（${result.job.capability}）已派发`, result.job);
          await refresh();
        } catch (error) {
          operations.fail(operationId, error instanceof Error ? error.message : "操作失败", operationId);
        }
      }
    });
  }

  if (!serverId) {
    return (
      <EmptyState title="未选择服务器" description="请从服务器列表进入详情页。" actionLabel="返回服务器列表" onAction={() => onNavigate("servers")} />
    );
  }

  return (
    <section className="server-detail-page" aria-labelledby="server-detail-title">
      <div className="action-strip">
        <button type="button" className="icon-command" onClick={() => onNavigate("servers")}>
          <MoonStar size={16} />
          <span>返回列表</span>
        </button>
        <button type="button" className="icon-command" onClick={() => void refresh()}>
          <Sparkles size={16} />
          <span>刷新</span>
        </button>
      </div>

      {instance.status === "loading" && <LoadingState label="正在加载服务器详情…" />}
      {instance.status === "error" && (
        <ErrorState title="服务器详情加载失败" reason={instance.reason} diagnosticId={`server-detail:${serverId}`} onRetry={() => void refresh()} />
      )}

      {instance.status !== "ready" && (
        <nav className="section-tabs" aria-label="server sections">
          {detailSections.map((entry) => (
            <button
              key={entry.id}
              type="button"
              className={cx("section-tab", section === entry.id && "section-tab-active")}
              aria-current={section === entry.id ? "page" : undefined}
              onClick={() => setSection(entry.id)}
            >
              {entry.label}
            </button>
          ))}
        </nav>
      )}

      {instance.status === "ready" && (
        <>
          <header className="server-detail-header">
            <div className="server-detail-title-row">
              <div>
                <h1 id="server-detail-title">{instance.data.name}</h1>
                <span className="provider-id">
                  {instance.data.id} · 插件 {instance.data.pluginId}@{instance.data.pluginVersion} · 节点 {instance.data.runEndpointId}
                </span>
              </div>
              <div className="action-strip">
                <span className={cx("status-pill", detailFreshness === "fresh" ? statusClass(instance.data.state) : "status-disabled")}>{detailStateText}</span>
                <button
                  type="button"
                  className="icon-command"
                  disabled={!canStartServer(instance.data.state) || operations.isPending(instance.data.id, "启动服务器")}
                  onClick={() => requestLifecycle(instance.data, "start")}
                >
                  <WandSparkles size={15} />
                  <span>启动</span>
                </button>
                <button
                  type="button"
                  className="icon-command danger-command"
                  disabled={!canStopServer(instance.data.state) || operations.isPending(instance.data.id, "停止服务器")}
                  onClick={() => requestLifecycle(instance.data, "stop")}
                >
                  <Square size={15} />
                  <span>停止</span>
                </button>
                <button type="button" className="icon-command" disabled={!canManageServers} title={canManageServers ? "管理终端" : "当前账号没有管理权限"} onClick={() => setTerminalOpen(true)}><Terminal size={15} /><span>管理终端</span></button>
              </div>
            </div>
            <div className="server-detail-stat-strip">
              <HeaderStat label="状态" value={detailFreshness === "fresh" ? (serverIsOnline(instance.data.state) ? "在线" : "离线") : "未验证"} />
              <HeaderStat label="玩家" value={metrics?.playerCount !== undefined ? `${metrics.playerCount}${metrics.maxPlayers ? `/${metrics.maxPlayers}` : ""}` : "--"} />
              <HeaderStat label="TPS" value={metrics?.tps !== undefined ? metrics.tps.toFixed(1) : "--"} />
              <HeaderStat label="延迟" value={metrics?.latencyMs !== undefined ? `${Math.round(metrics.latencyMs)}ms` : "--"} />
              <HeaderStat label="指标" value={metricFreshnessLabel(metrics)} />
            </div>
            <div className="server-detail-meter-strip">
              <UsageMeter label="CPU" percent={metrics?.cpuPercent} />
              <UsageMeter label="内存" percent={metrics?.memoryPercent} />
              <UsageMeter label="磁盘" percent={metrics?.diskPercent} />
            </div>
          </header>

          <nav className="section-tabs" aria-label="server sections">
            {detailSections.map((entry) => (
              <button
                key={entry.id}
                type="button"
                className={cx("section-tab", section === entry.id && "section-tab-active")}
                aria-current={section === entry.id ? "page" : undefined}
                onClick={() => setSection(entry.id)}
              >
                {entry.label}
              </button>
            ))}
          </nav>

          {section === "logs" && <LogsSection serverId={serverId} />}
          {section === "terminal" && <SourceRCONCommandPanel serverId={instance.data.id} pluginId={instance.data.pluginId} />}
          {pluginPageKeyFromSection(section) && readyPlugin && <PluginPageSection pageProps={props} serverId={serverId} plugin={readyPlugin} routeKey={pluginPageKeyFromSection(section) ?? ""} />}
          {section === "config" && <ServerDeploymentSection instance={instance.data} deployment={deployment} />}
          {section === "config" && (
            <ServerMetadataSection
              instance={instance.data}
              session={session}
              operations={operations}
              onChanged={(next) => setInstance({ status: "ready", data: next })}
            />
          )}
          {section === "config" && <ServerAdministratorsSection instance={instance.data} session={session} onChanged={(next) => setInstance({ status: "ready", data: next })} />}
          {section === "config" && <ConfigSection serverId={serverId} instance={instance.data} session={session} operations={operations} />}
          {section === "llm" && <LlmSection serverId={serverId} instance={instance.data} session={session} operations={operations} />}
          {section === "history" && <HistorySection serverId={serverId} serverOperations={serverOperations} jobs={jobs} artifacts={artifacts} metricHistory={metricHistory} backups={backups} remoteAdapters={remoteAdapters} />}
          <ServerManagementTerminalDrawer open={terminalOpen} serverId={instance.data.id} serverName={instance.data.name} pluginId={instance.data.pluginId} canManage={canManageServers} onClose={() => setTerminalOpen(false)} />
        </>
      )}

      <ConfirmDialog
        open={confirm !== null}
        title={confirm?.title ?? ""}
        description={confirm?.description ?? ""}
        confirmLabel="确认执行"
        danger={confirm?.danger}
        busy={confirmBusy}
        onCancel={() => setConfirm(null)}
        onConfirm={() => {
          if (!confirm) {
            return;
          }
          setConfirmBusy(true);
          void confirm.run().finally(() => {
            setConfirmBusy(false);
            setConfirm(null);
          });
        }}
      />
    </section>
  );
}

function uniqueArtifacts(artifacts: ArtifactResponse[]): ArtifactResponse[] {
  const byID = new Map<string, ArtifactResponse>();
  for (const artifact of artifacts) {
    byID.set(artifact.id, artifact);
  }
  return [...byID.values()];
}

function serverDetailSectionEntries(plugin?: GamePluginResponse): Array<{ id: ServerDetailSection; label: string }> {
  const pluginPages = (plugin?.pages ?? []).map((page) => ({ id: `plugin:${page.key}` as ServerDetailSection, label: page.title }));
  return [...pluginPages, ...serverDetailSections];
}

function pluginPageKeyFromSection(section: ServerDetailSection): string | null {
  return section.startsWith("plugin:") ? section.slice("plugin:".length) : null;
}

interface PluginPageSectionProps {
  pageProps: PageComponentProps;
  serverId: string;
  plugin: GamePluginResponse;
  routeKey: string;
}

function PluginPageSection({ pageProps, serverId, plugin, routeKey }: PluginPageSectionProps) {
  const params = useMemo(() => ({ ...pageProps.params, pluginId: plugin.id, routeKey, serverId }), [pageProps.params.pluginId, pageProps.params.routeKey, pageProps.params.serverId, plugin.id, routeKey, serverId]);
  return <PluginPageHostPage {...pageProps} params={params} initialPlugin={plugin} embedded />;
}

interface ServerMetadataSectionProps {
  instance: ServerInstanceResponse;
  session: PageComponentProps["session"];
  operations: PageComponentProps["operations"];
  onChanged: (instance: ServerInstanceResponse) => void;
}

function ServerMetadataSection({ instance, session, operations, onChanged }: ServerMetadataSectionProps) {
  const [draft, setDraft] = useState<ServerMetadataFormState>(() => serverMetadataFormFromInstance(instance));
  const [result, setResult] = useState<{ status: "succeeded" | "failed" | "pending"; label: string } | null>(null);

  useEffect(() => {
    setDraft(serverMetadataFormFromInstance(instance));
  }, [instance.id, instance.name]);

  async function saveMetadata(event: FormEvent<HTMLFormElement>) {
    event.preventDefault();
    const operationId = operations.begin({ intent: "更新服务器信息", targetKind: "server", targetId: instance.id, requester: session.displayName });
    setResult({ status: "pending", label: "正在保存服务器信息" });
    try {
      const updated = await platformApiClient.updateServerInstance(instance.id, serverMetadataUpdateRequestFromForm(draft));
      onChanged(updated);
      operations.succeed(operationId, `服务器信息已更新：${updated.id}`);
      setResult({ status: "succeeded", label: `已更新 ${updated.name}` });
    } catch (error) {
      operations.fail(operationId, error instanceof Error ? error.message : "服务器信息更新失败");
      setResult({ status: "failed", label: error instanceof Error ? error.message : "服务器信息更新失败" });
    }
  }

  return (
    <article className="console-panel" aria-label="server metadata">
      <div className="panel-header">
        <h2>
          <Pencil size={16} style={{ verticalAlign: "-2px" }} /> 基本信息
        </h2>
        {result && <ResultBadge status={result.status} label={result.label} />}
      </div>
      <form className="provider-form" style={{ marginTop: 12 }} onSubmit={(event) => void saveMetadata(event)}>
        <label>
          显示名称
          <input value={draft.name} onChange={(event) => setDraft((current) => ({ ...current, name: event.target.value }))} />
        </label>
        <div className="action-strip">
          <button type="submit" className="primary-command" disabled={draft.name.trim() === instance.name}>
            <Pencil size={14} />
            <span>保存名称</span>
          </button>
        </div>
      </form>
    </article>
  );
}

interface ServerDeploymentSectionProps {
	instance: ServerInstanceResponse;
	deployment: LoadState<ServerDeploymentResponse>;
}

function ServerDeploymentSection({ instance, deployment }: ServerDeploymentSectionProps) {
	if (deployment.status === "loading") return <LoadingState label="正在加载部署定义…" compact />;
	if (deployment.status === "error") return <ErrorState title="部署定义不可用" reason={deployment.reason} diagnosticId={`deployment:${instance.id}`} compact />;
	const view = deployment.data;
	const projection = view.projection;
	const isScumTemplate = (instance.pluginId === "game.scum" && (view.mode === "guided-install" || view.mode === "existing-server")) || projection?.templateKey?.startsWith("scum-");
	return <article className="console-panel" aria-label="server deployment">
		<div className="panel-header"><h2><PackageOpen size={16} style={{ verticalAlign: "-2px" }} /> 部署定义</h2><span className="page-status">{view.mode || "未配置"} · 修订 {view.revision}</span></div>
		<p className="section-copy">服务器目录是主目录；执行目录只用于高级自定义启动，留空时继承服务器目录。路径和命令均为受保护输入，不会回显。</p>
		<div className="console-row-list"><div className="console-row"><span>服务器目录</span><strong>{view.serverRootConfigured ? "已配置" : "未配置"}</strong></div><div className="console-row"><span>高级执行目录</span><strong>{view.workingDirectoryConfigured ? "已配置" : "使用服务器目录"}</strong></div><div className="console-row"><span>启动设置</span><strong>{view.startCommandConfigured ? "已配置" : view.mode === "custom-command" ? "未配置" : "插件引导"}</strong></div>{view.latestDispatch && <div className="console-row"><span>最近 Run 调度</span><strong>{view.latestDispatch.deploymentDefinitionIncluded ? `部署定义已随任务发送 · r${view.latestDispatch.deploymentRevision} · ${view.latestDispatch.jobState}` : "未携带部署定义"}</strong></div>}{view.latestDispatch?.runConfirmed && <div className="console-row"><span>Run 执行确认</span><strong>已按 r{view.latestDispatch.deploymentRevision} 确认执行</strong></div>}</div>
		{isScumTemplate && <div className="console-row-list" style={{ marginTop: 12 }}><div className="console-row"><span>SCUM 受控模板</span><strong>{projection?.templateVersion ? `${projection.templateKey ?? "已选择"} · v${projection.templateVersion}` : "等待 Run 预检"}</strong></div><div className="console-row"><span>预检 / 扫描</span><strong>{deploymentProjectionLabel(projection?.preflightState)} / {deploymentProjectionLabel(projection?.discoveryState)}</strong></div><div className="console-row"><span>配置映射 / 健康验证</span><strong>{deploymentProjectionLabel(projection?.mappingState)} / {deploymentProjectionLabel(projection?.verificationState)}</strong></div>{projection?.failureCode && <div className="console-row"><span>失败原因</span><strong>{projection.failureCode}</strong></div>}</div>}
	</article>;
}

function deploymentProjectionLabel(value?: string): string {
	switch (value) {
		case "queued": return "排队中";
		case "running": return "执行中";
		case "passed": return "已通过";
		case "applied": return "已写入";
		case "unchanged": return "未变化";
		case "failed": return "失败";
		case "skipped": return "已跳过";
		default: return "待返回";
	}
}

function deploymentProgressLabel(progress: JobResponse["progress"]): string {
	switch (progress.phase) {
		case "queued": return "任务已排队，等待 Run 领取";
		case "claimed": return "Run 已领取任务";
		case "preflight": return "正在执行本机预检";
		case "install": return "正在安装服务器";
		case "configure": return "正在写入游戏配置";
		case "start": return "正在启动服务器";
		case "health": return "正在进行健康检查";
		default: return "部署任务已提交";
	}
}

interface ServerAdministratorsSectionProps {
  instance: ServerInstanceResponse;
  session: PageComponentProps["session"];
  onChanged: (instance: ServerInstanceResponse) => void;
}

function ServerAdministratorsSection({ instance, session, onChanged }: ServerAdministratorsSectionProps) {
  const [candidates, setCandidates] = useState<LoadState<ServerMemberResponse[]>>({ status: "loading" });
  const [selectedUserId, setSelectedUserId] = useState("");
  const [busyUserId, setBusyUserId] = useState<string | null>(null);
  const [result, setResult] = useState<{ status: "succeeded" | "failed"; label: string } | null>(null);
  const isOwner = instance.ownerUserId === session.id;

  const refreshCandidates = useCallback(async () => {
    if (!isOwner) {
      setCandidates({ status: "ready", data: [] });
      return;
    }
    setCandidates({ status: "loading" });
    try {
      const response = await platformApiClient.listServerAdministratorCandidates(instance.id);
      setCandidates({ status: "ready", data: response.items });
      setSelectedUserId((current) => (response.items.some((user) => user.id === current) ? current : response.items[0]?.id ?? ""));
    } catch (error) {
      setCandidates({ status: "error", reason: error instanceof Error ? error.message : "加载候选管理员失败" });
    }
  }, [instance.id, isOwner]);

  useEffect(() => {
    void refreshCandidates();
  }, [refreshCandidates]);

  async function addAdministrator(event: FormEvent<HTMLFormElement>) {
    event.preventDefault();
    if (!selectedUserId) {
      return;
    }
    setBusyUserId(selectedUserId);
    setResult(null);
    try {
      const next = await platformApiClient.addServerAdministrator(instance.id, { userId: selectedUserId });
      onChanged(next);
      setResult({ status: "succeeded", label: "已添加服务器管理员" });
      await refreshCandidates();
    } catch (error) {
      setResult({ status: "failed", label: error instanceof Error ? error.message : "添加管理员失败" });
    } finally {
      setBusyUserId(null);
    }
  }

  async function removeAdministrator(userId: string) {
    setBusyUserId(userId);
    setResult(null);
    try {
      const next = await platformApiClient.removeServerAdministrator(instance.id, userId);
      onChanged(next);
      setResult({ status: "succeeded", label: "已移除服务器管理员" });
      await refreshCandidates();
    } catch (error) {
      setResult({ status: "failed", label: error instanceof Error ? error.message : "移除管理员失败" });
    } finally {
      setBusyUserId(null);
    }
  }

  return (
    <article className="console-panel" aria-label="server administrators">
      <div className="panel-header">
        <h2>
          <ShieldCheck size={16} style={{ verticalAlign: "-2px" }} /> 管理成员
        </h2>
        <span className="page-status">{isOwner ? "服主可邀请/移除管理员" : "仅服主可调整成员"}</span>
      </div>
      {result && (
        <div style={{ marginBottom: 10 }}>
          <ResultBadge status={result.status} label={result.label} />
        </div>
      )}
      <div className="action-list">
        <span>服主：{instance.ownerUserId || "未绑定"}</span>
        <span>服务器管理员：{instance.adminUserIds.length > 0 ? instance.adminUserIds.join(" / ") : "暂无"}</span>
      </div>
      {isOwner && (
        <>
          <form className="provider-form" style={{ marginTop: 12 }} onSubmit={(event) => void addAdministrator(event)} aria-label="邀请服务器管理员">
            <div className="form-grid">
              <label>
                邀请管理员
                <select value={selectedUserId} onChange={(event) => setSelectedUserId(event.target.value)} disabled={candidates.status !== "ready" || candidates.data.length === 0}>
                  {candidates.status === "ready" && candidates.data.length === 0 && <option value="">暂无可邀请用户</option>}
                  {candidates.status === "ready" &&
                    candidates.data.map((user) => (
                      <option key={user.id} value={user.id}>
                        {user.displayName}（{user.email ?? user.id}）
                      </option>
                    ))}
                </select>
              </label>
            </div>
            {candidates.status === "loading" && <LoadingState label="正在加载可邀请用户…" compact />}
            {candidates.status === "error" && (
              <ErrorState title="候选管理员加载失败" reason={candidates.reason} diagnosticId={`server-admin-candidates:${instance.id}`} onRetry={() => void refreshCandidates()} compact />
            )}
            <button type="submit" className="primary-command" disabled={!selectedUserId || busyUserId !== null}>
              <UserRoundPlus size={14} />
              <span>{busyUserId === selectedUserId ? "邀请中…" : "邀请为管理员"}</span>
            </button>
          </form>
          {instance.adminUserIds.length > 0 && (
            <div className="resource-list" style={{ marginTop: 12 }}>
              {instance.adminUserIds.map((userId) => (
                <article key={userId} className="resource-list-item">
                  <span>
                    <strong>{userId}</strong>
                    <span className="provider-id">服务器管理员</span>
                  </span>
                  <button type="button" className="theme-upload" disabled={busyUserId !== null} onClick={() => void removeAdministrator(userId)}>
                    <UserRoundMinus size={13} />
                    <span>{busyUserId === userId ? "移除中…" : "移除"}</span>
                  </button>
                </article>
              ))}
            </div>
          )}
        </>
      )}
    </article>
  );
}

function HeaderStat({ label, value }: { label: string; value: string }) {
  return (
    <span className="server-card-stat">
      <span>{label}</span>
      <strong>{value}</strong>
    </span>
  );
}

function metricFreshnessLabel(metrics: ServerMetricsResponse | null): string {
  if (!metrics || metrics.source === "run-metrics-pending") return "等待上报";
  const collectedAt = new Date(metrics.collectedAt).getTime();
  if (Number.isFinite(collectedAt) && Date.now() - collectedAt > serverMetricFreshMs) return "指标过期";
  return new Date(metrics.collectedAt).toLocaleTimeString();
}

interface LogsSectionProps {
  serverId: string;
}

interface LogFilterState {
  level: string;
  keyword: string;
  source: string;
  sinceMinutes: string;
}

function LogsSection({ serverId }: LogsSectionProps) {
  const [streams, setStreams] = useState<LoadState<LogStreamResponse[]>>({ status: "loading" });
  const [entries, setEntries] = useState<LiveLogEntry[]>([]);
  const [filter, setFilter] = useState<LogFilterState>({ level: "all", keyword: "", source: "all", sinceMinutes: "all" });
  const [selected, setSelected] = useState<LiveLogEntry | null>(null);
  const [eventSourceKey, setEventSourceKey] = useState(0);

  const refresh = useCallback(() => setEventSourceKey((current) => current + 1), []);

  useEffect(() => {
    setStreams({ status: "loading" });
    setEntries([]);
    setSelected(null);
    let ready = false;
    const events = platformApiClient.openServerLogEvents(serverId, { historyLimit: 200 });
    events.addEventListener("stream", (event) => {
      const stream = parseLogStreamEvent(event);
      if (!stream) return;
      ready = true;
      setStreams((current) => ({ status: "ready", data: mergeLogStreams(current.status === "ready" ? current.data : [], stream) }));
    });
    events.addEventListener("ready", () => {
      ready = true;
      setStreams((current) => current.status === "ready" ? current : { status: "ready", data: [] });
    });
    events.addEventListener("log", (event) => {
      const payload = parseServerLogEvent(event);
      if (!payload) return;
      ready = true;
      setStreams((current) => ({ status: "ready", data: mergeLogStreams(current.status === "ready" ? current.data : [], streamFromServerLogEvent(payload)) }));
      setEntries((current) => appendLiveLogEntries(current, [entryFromServerLogEvent(payload)], 1000));
    });
    events.onerror = () => {
      if (!ready) setStreams({ status: "error", reason: "实时日志推送连接失败" });
    };
    return () => events.close();
  }, [eventSourceKey, serverId]);

  const sources = useMemo(() => [...new Set(entries.map((entry) => entry.source))], [entries]);

  const visible = useMemo(() => {
    const keyword = filter.keyword.trim().toLowerCase();
    const sinceMs = filter.sinceMinutes === "all" ? null : Date.now() - Number(filter.sinceMinutes) * 60_000;
    return entries.filter((entry) => {
      if (filter.level !== "all" && (entry.level ?? "info").toLowerCase() !== filter.level) {
        return false;
      }
      if (filter.source !== "all" && entry.source !== filter.source) {
        return false;
      }
      if (keyword && !entry.line.toLowerCase().includes(keyword)) {
        return false;
      }
      if (sinceMs !== null && new Date(entry.timestamp).getTime() < sinceMs) {
        return false;
      }
      return true;
    }).sort(compareLogEntriesDesc);
  }, [entries, filter]);

  return (
    <article className="console-panel" aria-label="server logs">
      <div className="panel-header">
        <h2>日志</h2>
        <button type="button" className="icon-command" onClick={refresh}>
          <Sparkles size={14} />
          <span>重连</span>
        </button>
      </div>
      <div className="log-filter-bar">
        <select value={filter.level} aria-label="按级别过滤" onChange={(event) => setFilter((current) => ({ ...current, level: event.target.value }))}>
          <option value="all">全部级别</option>
          <option value="error">error</option>
          <option value="warn">warn</option>
          <option value="info">info</option>
          <option value="debug">debug</option>
        </select>
        <select value={filter.source} aria-label="按来源过滤" onChange={(event) => setFilter((current) => ({ ...current, source: event.target.value }))}>
          <option value="all">全部来源</option>
          {sources.map((source) => (
            <option key={source} value={source}>
              {source}
            </option>
          ))}
        </select>
        <select
          value={filter.sinceMinutes}
          aria-label="按时间过滤"
          onChange={(event) => setFilter((current) => ({ ...current, sinceMinutes: event.target.value }))}
        >
          <option value="all">全部时间</option>
          <option value="15">最近 15 分钟</option>
          <option value="60">最近 1 小时</option>
          <option value="1440">最近 24 小时</option>
        </select>
        <input
          type="search"
          value={filter.keyword}
          placeholder="关键字"
          aria-label="按关键字过滤"
          onChange={(event) => setFilter((current) => ({ ...current, keyword: event.target.value }))}
        />
      </div>
      {streams.status === "loading" && <LoadingState label="正在加载日志…" compact />}
      {streams.status === "error" && <ErrorState title="日志加载失败" reason={streams.reason} diagnosticId={`logs:${serverId}`} onRetry={refresh} compact />}
      {streams.status === "ready" && entries.length === 0 && (
        <EmptyState title="暂无日志" description="该服务器还没有已入库的日志流，或运行端尚未上报日志。" actionLabel="重连" onAction={refresh} />
      )}
      {streams.status === "ready" && entries.length > 0 && visible.length === 0 && (
        <EmptyState title="没有匹配的日志" description="调整级别、来源、时间范围或关键字后再试。" />
      )}
      {visible.length > 0 && (
        <div className="log-list" role="list">
          {visible.map((entry) => (
            <button key={`${entry.streamId}-${entry.seq}`} type="button" className="log-line" role="listitem" onClick={() => setSelected(entry)}>
              <time>{new Date(entry.timestamp).toLocaleTimeString()}</time>
              <span className={cx("log-level", levelClass(entry.level))}>{(entry.level ?? "info").toUpperCase()}</span>
              <span>{entry.line}</span>
            </button>
          ))}
        </div>
      )}

      {selected && (
        <div className="drawer-backdrop" role="presentation" onClick={() => setSelected(null)}>
          <div className="drawer-panel" role="dialog" aria-modal="true" aria-label="日志详情" onClick={(event) => event.stopPropagation()}>
            <div className="panel-header">
              <h2>日志详情</h2>
              <button type="button" className="drawer-close" onClick={() => setSelected(null)}>
                关闭
              </button>
            </div>
            <dl className="detail-list">
              <div>
                <dt>时间</dt>
                <dd>{new Date(selected.timestamp).toLocaleString()}</dd>
              </div>
              <div>
                <dt>级别</dt>
                <dd>{(selected.level ?? "info").toUpperCase()}</dd>
              </div>
              <div>
                <dt>来源</dt>
                <dd>{selected.source}</dd>
              </div>
              <div>
                <dt>序号</dt>
                <dd>{selected.seq}</dd>
              </div>
              <div>
                <dt>内容</dt>
                <dd>{selected.line}</dd>
              </div>
              {selected.fields && Object.keys(selected.fields).length > 0 && (
                <div>
                  <dt>字段</dt>
                  <dd>
                    {Object.entries(selected.fields)
                      .map(([key, value]) => `${key}=${value}`)
                      .join(" ")}
                  </dd>
                </div>
              )}
            </dl>
            <DiagnosticSummary diagnosticId={`log:${serverId}:${selected.source}:${selected.seq}`} detail={selected.line} />
          </div>
        </div>
      )}
    </article>
  );
}

function levelClass(level?: string): string {
  const normalized = (level ?? "info").toLowerCase();
  if (normalized === "error" || normalized === "fatal") {
    return "log-level-error";
  }
  if (normalized === "warn" || normalized === "warning") {
    return "log-level-warn";
  }
  return "log-level-info";
}

function compareLogEntriesDesc(a: LiveLogEntry, b: LiveLogEntry): number {
  const time = (Date.parse(b.timestamp) || 0) - (Date.parse(a.timestamp) || 0);
  if (time !== 0) return time;
  return b.seq - a.seq;
}

interface ConfigSectionProps {
  serverId: string;
  instance: ServerInstanceResponse;
  session: PageComponentProps["session"];
  operations: PageComponentProps["operations"];
}

function ConfigSection({ serverId, instance, session, operations }: ConfigSectionProps) {
  const [config, setConfig] = useState<LoadState<{ content: string; source: "api" | "local" }>>({ status: "loading" });
  const [draft, setDraft] = useState("");
  const [diff, setDiff] = useState<ConfigDiffView | null>(null);
  const [previewBusy, setPreviewBusy] = useState(false);
  const [previewError, setPreviewError] = useState<string | null>(null);

  const refresh = useCallback(async () => {
    setConfig({ status: "loading" });
    try {
      const response: ServerConfigResponse = await platformApiClient.getServerConfig(serverId);
      setConfig({ status: "ready", data: { content: response.content, source: "api" } });
      setDraft(response.content);
    } catch (error) {
      setConfig({ status: "error", reason: error instanceof Error ? error.message : "配置读取接口不可用" });
      setDraft("");
    }
  }, [serverId]);

  useEffect(() => {
    void refresh();
  }, [refresh]);

  async function prepareDiff(event: FormEvent<HTMLFormElement>) {
    event.preventDefault();
    if (config.status !== "ready") {
      return;
    }
    setPreviewBusy(true);
    setPreviewError(null);
    try {
      const preview = await platformApiClient.previewServerConfigDiff(serverId, {
        expectedConfigVersion: instance.configVersion,
        expectedChecksum: instance.configChecksum,
        key: defaultConfigKey,
        proposedContent: draft
      });
      setDiff(configDiffViewFromPreview(preview));
    } catch (error) {
      setPreviewError(error instanceof Error ? error.message : "配置差异预览失败");
    } finally {
      setPreviewBusy(false);
    }
  }

  async function submitDiff() {
    if (!diff || config.status !== "ready") {
      return;
    }
    const operationId = operations.begin({ intent: "写入配置", targetKind: "config", targetId: serverId, requester: session.displayName });
    try {
      const dispatch = await platformApiClient.approveServerConfigWrite(serverId, {
        expectedConfigVersion: diff.configVersion ?? instance.configVersion,
        expectedChecksum: diff.checksum ?? instance.configChecksum,
        key: diff.key ?? defaultConfigKey,
        proposedContent: diff.nextContent,
        proposedContentInputRef: diff.proposedContentInputRef,
        idempotencyKey: `web:config.write:${serverId}:${Date.now()}`
      });
      const job = dispatch.job;
      operations.succeed(operationId, `配置写入任务 ${job.id} 已派发`, job);
      setDiff(null);
    } catch (error) {
      operations.fail(operationId, error instanceof Error ? error.message : "配置写入任务派发失败", operationId);
    }
  }

  const writeOperation = operations.operations.find((operation) => operation.intent === "写入配置" && operation.targetId === serverId);

  return (
    <article className="console-panel" aria-label="server configuration">
      <div className="panel-header">
        <h2>配置</h2>
        {config.status === "ready" && <span className="page-status">配置版本 v{instance.configVersion}{instance.configChecksum ? ` · ${instance.configChecksum.slice(0, 18)}` : ""}</span>}
      </div>
      {writeOperation && (
        <div style={{ marginBottom: 10 }}>
          <ResultBadge
            status={writeOperation.status}
            label={
              writeOperation.status === "pending"
                ? "配置写入中…"
                : writeOperation.status === "succeeded"
                  ? (writeOperation.message ?? "写入任务已派发")
                  : `写入失败：${writeOperation.errorReason}（诊断 ${writeOperation.diagnosticId}）`
            }
          />
        </div>
      )}
      {config.status === "loading" && <LoadingState label="正在加载配置…" compact />}
      {config.status === "error" && <ErrorState title="配置读取不可用" reason={config.reason} diagnosticId={`server-config:${serverId}`} onRetry={() => void refresh()} compact />}
      {previewError && <ErrorState title="配置差异预览失败" reason={previewError} compact />}
      {config.status === "ready" && (
        <form className="provider-form" style={{ border: 0, padding: 0 }} onSubmit={(event) => void prepareDiff(event)}>
          <label>
            配置内容
            <textarea value={draft} onChange={(event) => setDraft(event.target.value)} rows={10} aria-label="配置编辑器" />
          </label>
          <button type="submit" className="primary-command" disabled={previewBusy || draft === config.data.content}>
            {previewBusy ? "预览中…" : "预览变更"}
          </button>
        </form>
      )}

      {diff && (
        <div className="drawer-backdrop" role="presentation" onClick={() => setDiff(null)}>
          <div className="drawer-panel" role="dialog" aria-modal="true" aria-label="配置变更确认" onClick={(event) => event.stopPropagation()}>
            <div className="panel-header">
              <h2>确认配置变更</h2>
              <span className="page-status">{diff.summary}</span>
            </div>
            <p style={{ margin: 0, color: "var(--ink-soft)", fontSize: 14 }}>
              目标服务器：<strong>{instance.name}</strong>（{serverId}）。请检查平台返回的差异，确认后才会派发写入任务。
            </p>
            <DiffView lines={diff.lines} />
            <div className="confirm-actions">
              <button type="button" onClick={() => setDiff(null)}>
                取消
              </button>
              <button type="button" className="confirm-primary" disabled={!diffHasChanges(diff)} onClick={() => void submitDiff()}>
                确认并派发写入任务
              </button>
            </div>
          </div>
        </div>
      )}
    </article>
  );
}

interface LlmSectionProps {
  serverId: string;
  instance: ServerInstanceResponse;
  session: PageComponentProps["session"];
  operations: PageComponentProps["operations"];
}

function LlmSection({ serverId, instance, session, operations }: LlmSectionProps) {
  const [prompt, setPrompt] = useState("");
  const [suggestion, setSuggestion] = useState<LlmSuggestionView | null>(null);
  const [confirming, setConfirming] = useState(false);
  const [busy, setBusy] = useState(false);
  const [approvalBusy, setApprovalBusy] = useState(false);
  const [suggestionError, setSuggestionError] = useState("");

  async function requestSuggestion(event: FormEvent<HTMLFormElement>) {
    event.preventDefault();
    if (!prompt.trim()) {
      return;
    }
    setBusy(true);
    setSuggestion(null);
    setSuggestionError("");
    try {
      const response = await platformApiClient.invokeAI({ requestId: `web:ai.config:${serverId}:${Date.now()}`, serverInstanceId: serverId, purpose: "config.suggest", prompt: prompt.trim() });
      if (response.status !== "ok") {
        throw new Error(response.error?.message ?? "AI 提供商未返回可用建议");
      }
      const recommendation = response.configRecommendation;
      const preview = recommendation?.suggestedConfig
        ? await platformApiClient.previewServerConfigDiff(serverId, {
            expectedConfigVersion: instance.configVersion,
            expectedChecksum: instance.configChecksum,
            key: recommendation.key,
            proposedContent: recommendation.suggestedConfig
          })
        : undefined;
      setSuggestion({
        serverInstanceId: serverId,
        source: "api",
        recommendation: response.recommendation ?? "Platform 已返回配置建议。",
        diffId: recommendation?.diffId,
        expiresAt: recommendation?.expiresAt,
        diff: preview ? configDiffViewFromPreview(preview) : undefined
      });
    } catch (caught) {
      setSuggestionError(caught instanceof Error ? caught.message : "AI 建议请求失败");
    } finally {
      setBusy(false);
    }
  }

  async function applySuggestion() {
    if (!suggestion?.diff || !suggestion.diffId || approvalBusy) {
      return;
    }
    const operationId = operations.begin({ intent: "应用 AI 配置建议", targetKind: "llm", targetId: serverId, requester: session.displayName });
    setApprovalBusy(true);
    try {
      const approved = await platformApiClient.approveAIConfigDiff(suggestion.diffId, `web:ai.config.approve:${suggestion.diffId}`);
      const job = approved.dispatch.job;
      operations.succeed(operationId, `AI 建议已确认，写入任务 ${job.id} 已派发`, job);
      setSuggestion(null);
      setConfirming(false);
    } catch (error) {
      operations.fail(operationId, error instanceof Error ? error.message : "写入任务派发失败", operationId);
      setConfirming(false);
    } finally {
      setApprovalBusy(false);
    }
  }

  const llmOperation = operations.operations.find((operation) => operation.intent === "应用 AI 配置建议" && operation.targetId === serverId);

  return (
    <article className="console-panel" aria-label="llm configuration assistance">
      <div className="panel-header">
        <h2>
          <Sparkles size={16} style={{ verticalAlign: "-2px" }} /> AI 配置助手
        </h2>
        <span className="page-status">建议仅作用于 {serverId}</span>
      </div>
      <p style={{ margin: "0 0 12px", color: "var(--ink-soft)", fontSize: 13.5 }}>
        AI 建议会先生成推荐说明和配置差异，<strong>不会自动写入</strong>。只有你确认差异后，平台才会派发写入任务。前端不会接触任何 AI 提供商密钥。
      </p>
      {llmOperation && (
        <div style={{ marginBottom: 10 }}>
          <ResultBadge
            status={llmOperation.status}
            label={
              llmOperation.status === "pending"
                ? "写入中…"
                : llmOperation.status === "succeeded"
                  ? (llmOperation.message ?? "已派发")
                  : `失败：${llmOperation.errorReason}（诊断 ${llmOperation.diagnosticId}）`
            }
          />
        </div>
      )}
      {suggestionError && <ErrorState title="AI 建议不可用" reason={suggestionError} diagnosticId={`ai-config:${serverId}`} onRetry={() => setSuggestionError("")} compact />}
      <form className="provider-form" style={{ border: 0, padding: 0 }} onSubmit={(event) => void requestSuggestion(event)}>
        <label>
          想让 AI 帮你调整什么？
          <textarea
            value={prompt}
            rows={3}
            placeholder="例如：把最大玩家数提高到 40，并关闭 PVP"
            onChange={(event) => setPrompt(event.target.value)}
          />
        </label>
        <button type="submit" className="primary-command" disabled={busy || !prompt.trim()}>
          {busy ? "生成建议中…" : "生成建议"}
        </button>
      </form>

      {suggestion && (
        <div style={{ display: "grid", gap: 12, marginTop: 14 }}>
          <div className="panel-header" style={{ marginBottom: 0 }}>
            <h3>AI 建议</h3>
            <span className="page-status">平台 AI Provider</span>
          </div>
          <p style={{ margin: 0, color: "var(--ink-soft)", fontSize: 14 }}>{suggestion.recommendation}</p>
          {suggestion.diff ? (
            <>
              <DiffView lines={suggestion.diff.lines} />
              <div className="confirm-actions">
                <button type="button" onClick={() => setSuggestion(null)}>
                  放弃建议
                </button>
                <button type="button" className="confirm-primary" onClick={() => setConfirming(true)}>
                  确认差异并写入
                </button>
              </div>
            </>
          ) : (
            <span className="provider-id">该建议没有生成可应用的配置差异，仅供参考。</span>
          )}
        </div>
      )}

      <ConfirmDialog
        open={confirming}
        title="确认应用 AI 配置建议"
        description={`即将向服务器 ${instance.name}（${serverId}）派发配置写入任务。写入内容以上方差异为准。`}
        confirmLabel="确认写入"
        busy={approvalBusy || llmOperation?.status === "pending"}
        onCancel={() => setConfirming(false)}
        onConfirm={() => void applySuggestion()}
      />
    </article>
  );
}

export function configDiffViewFromPreview(preview: ServerConfigDiffPreviewResponse): ConfigDiffView {
  const lines = preview.diff.map(configDiffLineFromPreviewLine);
  const added = lines.filter((line) => line.kind === "added").length;
  const removed = lines.filter((line) => line.kind === "removed").length;
  return {
    serverInstanceId: preview.serverInstanceId,
    configVersion: preview.configVersion,
	checksum: preview.checksum,
    key: preview.key,
    source: preview.source,
    summary: `+${added} / -${removed} 行变更`,
    lines,
    nextContent: preview.proposedContent ?? "",
    proposedContentInputRef: preview.proposedContentInputRef
  };
}

function configDiffLineFromPreviewLine(line: ConfigDiffLineResponse): ConfigDiffView["lines"][number] {
  return {
    kind: line.kind === "context" ? "same" : line.kind,
    text: line.content
  };
}

interface HistorySectionProps {
  serverId: string;
  serverOperations: PageComponentProps["operations"]["operations"];
  jobs: JobResponse[];
  artifacts: ArtifactResponse[];
  metricHistory: MetricSampleResponse[];
  backups: BackupResponse[];
  remoteAdapters: RemoteAdapterDeclarationResponse[];
}

function HistorySection({ serverId, serverOperations, jobs, artifacts, metricHistory, backups, remoteAdapters }: HistorySectionProps) {
  return (
    <>
    <ProductionGovernancePanel compact title={`服务器 ${serverId} 的容量与告警`} />
    <div className="overview-two-col" aria-label="operation history">
      <article className="console-panel">
        <div className="panel-header">
          <h2>本次会话操作</h2>
        </div>
        {serverOperations.length === 0 ? (
          <EmptyState title="暂无操作记录" description="在本页发起启动、停止、插件页面操作或配置写入后，这里会显示完整的操作生命周期。" />
        ) : (
          <div className="console-record-list">
            {serverOperations.map((operation) => (
              <div key={operation.id} className="console-record">
                <div className="console-record-head">
                  <strong>{operation.intent}</strong>
                  <ResultBadge
                    status={operation.status}
                    label={operation.status === "pending" ? "进行中" : operation.status === "succeeded" ? "成功" : "失败"}
                  />
                </div>
                <div className="console-record-meta">
                  <span>
                    操作 <code>{operation.id}</code>
                  </span>
                  {operation.jobId && (
                    <span>
                      任务 <code>{operation.jobId}</code>
                      {operation.jobState ? `（${operation.jobState}）` : ""}
                    </span>
                  )}
                  <span>目标 {operation.targetId}</span>
                  <span>发起人 {operation.requester}</span>
                  <span>{new Date(operation.updatedAt).toLocaleString()}</span>
                </div>
                {operation.message && <span className="provider-id">{operation.message}</span>}
                {operation.status === "failed" && operation.errorReason && (
                  <span className="provider-id">
                    失败原因：{operation.errorReason}
                    {operation.diagnosticId ? `（诊断 ${operation.diagnosticId}）` : ""}
                  </span>
                )}
              </div>
            ))}
          </div>
        )}
      </article>
      <article className="console-panel">
        <div className="panel-header">
          <h2>平台任务记录</h2>
        </div>
        {jobs.length === 0 ? (
          <EmptyState title="暂无任务" description="该服务器还没有平台侧任务记录。" />
        ) : (
          <div className="console-record-list">
            {jobs.slice(0, 20).map((job) => (
              <div key={job.id} className="console-record">
                <div className="console-record-head">
                  <strong>{jobCapabilityLabel(job.capability)}</strong>
                  <span className={cx("status-pill", job.state === "succeeded" ? "status-active" : job.state === "failed" ? "status-error" : "status-disabled")}>
                    {job.state}
                  </span>
                </div>
                <div className="console-record-meta">
                  <span>
                    任务 <code>{job.id}</code>
                  </span>
                  <span>进度 {job.progress.percent}%</span>
					{job.progress.phase && <span>阶段：{deploymentProgressLabel(job.progress)}</span>}
                  <span>
                    尝试 {job.attempt}/{job.retryPolicy.maxAttempts}
                  </span>
                  {job.nextAttemptAt && <span>下次尝试 {new Date(job.nextAttemptAt).toLocaleString()}</span>}
                  {job.lastReconciledAt && <span>最近协调 {new Date(job.lastReconciledAt).toLocaleString()}</span>}
                  <span>{new Date(job.updatedAt).toLocaleString()}</span>
                </div>
                {job.progress.message && <span className="provider-id">{job.progress.message}</span>}
                {job.cancelReason && <span className="provider-id">取消原因：{job.cancelReason}</span>}
                {job.reconcileOutcome && <span className="provider-id">协调结果：{job.reconcileOutcome}</span>}
                {job.executionResult && (job.executionResult.processState || job.executionResult.checksum || job.executionResult.version !== undefined) && (
                  <span className="provider-id">
                    执行结果：{job.executionResult.processState ?? job.executionResult.kind ?? "已记录"}
                    {job.executionResult.version !== undefined ? ` · v${job.executionResult.version}` : ""}
                    {job.executionResult.checksum ? ` · ${job.executionResult.checksum.slice(0, 18)}` : ""}
                    {job.executionResult.sizeBytes !== undefined ? ` · ${job.executionResult.sizeBytes} B` : ""}
                  </span>
                )}
              </div>
            ))}
          </div>
        )}
      </article>
      <ArtifactDownloadPanel serverId={serverId} artifacts={artifacts} />
      <article className="console-panel" aria-label="durable observability">
        <div className="panel-header">
          <h2>持久化观测</h2>
        </div>
        <div className="console-record-list">
          <div className="console-record">
            <div className="console-record-head"><strong>指标样本</strong><span className="status-pill status-active">{metricHistory.length} 条</span></div>
            <div className="console-record-meta"><span>最新采集 {metricHistory.length > 0 ? new Date(metricHistory[metricHistory.length - 1].collectedAt).toLocaleString() : "暂无"}</span></div>
          </div>
          <div className="console-record">
            <div className="console-record-head"><strong>备份记录</strong><span className="status-pill status-active">{backups.length} 条</span></div>
            <div className="console-record-meta">{backups.slice(0, 4).map((backup) => <span key={backup.id}>{backup.id} · {backup.state} · {backup.checksum.slice(0, 18)}</span>)}</div>
          </div>
          <div className="console-record">
            <div className="console-record-head"><strong>远端适配器声明</strong><span className="status-pill status-active">{remoteAdapters.length} 个</span></div>
            <div className="console-record-meta">{remoteAdapters.slice(0, 4).map((adapter) => <span key={adapter.key}>{adapter.key} · {adapter.kind} · {adapter.targetKeys.join(", ")}</span>)}</div>
          </div>
        </div>
      </article>
    </div>
    </>
  );
}

interface ArtifactDownloadPanelProps {
  serverId: string;
  artifacts: ArtifactResponse[];
}

function ArtifactDownloadPanel({ serverId, artifacts }: ArtifactDownloadPanelProps) {
  const [activeId, setActiveId] = useState<string | null>(null);
  const [result, setResult] = useState<Record<string, { status: "pending" | "succeeded" | "failed"; label: string; progress?: number }>>({});

  async function downloadArtifact(artifact: ArtifactResponse) {
    setActiveId(artifact.id);
    setResult((current) => ({ ...current, [artifact.id]: { status: "pending", label: "正在打开制品", progress: 0 } }));
    try {
      const reference = await platformApiClient.openArtifactDownload(artifact.id);
      await downloadArtifactReference(reference, (artifactId, offset, limit) => platformApiClient.readArtifactContent(artifactId, offset, limit), (progress) => {
        setResult((current) => ({ ...current, [artifact.id]: { status: "pending", label: `传输 ${progress}%`, progress } }));
      });
      setResult((current) => ({ ...current, [artifact.id]: { status: "succeeded", label: `已打开 ${safeArtifactFilename(reference.filename)}`, progress: 100 } }));
    } catch (error) {
      setResult((current) => ({ ...current, [artifact.id]: { status: "failed", label: safeArtifactError(error) } }));
    } finally {
      setActiveId(null);
    }
  }

  return (
    <article className="console-panel">
      <div className="panel-header">
        <h2>
          <PackageOpen size={16} />
          浏览器制品传输
        </h2>
      </div>
      {artifacts.length === 0 ? (
        <EmptyState title="暂无可下载制品" description="该服务器当前没有已完成的可用制品。" />
      ) : (
        <div className="console-record-list">
          {artifacts.slice(0, 12).map((artifact) => {
            const itemResult = result[artifact.id];
            return (
              <div key={artifact.id} className="console-record">
                <div className="console-record-head">
                  <strong>{artifact.id}</strong>
                  <ResultBadge status={itemResult?.status ?? "pending"} label={itemResult?.label ?? artifact.state} />
                </div>
                <div className="console-record-meta">
                  <span>服务器 {serverId}</span>
                  <span>{formatBytes(artifact.sizeBytes)}</span>
                  <span>{artifact.checksum}</span>
                </div>
                {itemResult?.progress !== undefined && <UsageMeter label="传输" percent={itemResult.progress} />}
                <div className="action-strip">
                  <button type="button" className="icon-command" disabled={activeId !== null} onClick={() => void downloadArtifact(artifact)}>
                    <Download size={14} />
                    <span>{activeId === artifact.id ? "传输中" : "打开"}</span>
                  </button>
                </div>
              </div>
            );
          })}
        </div>
      )}
    </article>
  );
}

function formatBytes(value: number): string {
  if (value < 1024) {
    return `${value} B`;
  }
  if (value < 1024 * 1024) {
    return `${(value / 1024).toFixed(1)} KiB`;
  }
  return `${(value / (1024 * 1024)).toFixed(1)} MiB`;
}