// DeploymentWorkload.tsx — Kuboard 风格 Deployment 详情主组件
//   - 顶部操作菜单: 编辑 | 预览/编辑YAML | 调整镜像版本 | 伸缩 | 日志/终端 | 重启 | 暂停/恢复更新 | CI/CD发布 | 删除 | 元数据 | 运行时 | 服务 | 应用路由
//   - 三模式: view（只读增强看板）/ edit（可视化编辑器）/ yaml（YAML编辑器）
// 作者: Logan.Li
import { useState, useEffect, useCallback } from 'react';
import { useNavigate } from 'react-router-dom';
import { Card, CardContent } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { Badge } from '@/components/ui/badge';
import {
  ArrowLeft,
  Image as ImageIcon,
  RotateCw,
  Trash2,
  RefreshCw,
  Loader2,
  XCircle,
  CheckCircle,
  AlertTriangle,
  Pause,
  Play,
  Rocket,
} from 'lucide-react';
import { kubernetesApi } from '@/api';
import { useToast } from '@/hooks/use-toast';
import { useConfirm } from '@/components/ui/confirm-dialog';
import { useUserStore } from '@/store';
import { YamlViewer } from './YamlViewer';
import { DeploymentView } from './DeploymentView';
import { PodExecTerminal } from './PodExecTerminal';
import { PodFileBrowser } from './PodFileBrowser';
import { EditModeContainer } from './deployment-workload/EditModeContainer';
import { CICDWebhookContent } from './deployment-workload/CICDWebhookContent';
import { ModalShell } from './deployment-workload/ModalShell';
import { PodLogsModal } from './deployment-workload/PodLogsModal';
import { ActionModals } from './deployment-workload/ActionModals';
import type { ActionModal, DeploymentWorkloadProps } from './deployment-workload/types';

export type { DeploymentWorkloadProps, WorkloadMode } from './deployment-workload/types';

export function DeploymentWorkload({ clusterCode, namespace, deploymentName, mode, onBack, onModeChange }: DeploymentWorkloadProps) {
  const navigate = useNavigate();
  const { toast } = useToast();
  const confirm = useConfirm();
  const [deployment, setDeployment] = useState<any>(null);
  const [manifest, setManifest] = useState<any>(null);
  const [pods, setPods] = useState<any[]>([]);
  const [replicaSets, setReplicaSets] = useState<any[]>([]);
  const [revisions, setRevisions] = useState<any[]>([]);
  const [loading, setLoading] = useState(true);
  const [actionLoading, setActionLoading] = useState('');
  const [modal, setModal] = useState<ActionModal>(null);
  // 调整镜像版本
  const [newImage, setNewImage] = useState('');
  // 伸缩
  const [scaleValue, setScaleValue] = useState(0);
  const [terminalPod, setTerminalPod] = useState<string | null>(null);
  const [fileBrowserPod, setFileBrowserPod] = useState<string | null>(null);
  const clusterId = deployment?.cluster_id || deployment?.clusterId || clusterCode;

  const toArray = ( v: any) => (Array.isArray(v) ? v : (v?.list || v?.items || v?.data || []));

  const loadData = useCallback(async () => {
    setLoading(true);
    try {
      const [dep, podRes, rsRes, revRes] = await Promise.all([
        kubernetesApi.getDeployment(clusterCode, namespace, deploymentName).catch(() => null),
        kubernetesApi.getNamespacePods(clusterCode, namespace).catch(() => []),
        kubernetesApi.getReplicaSets(clusterCode, namespace).catch(() => []),
        kubernetesApi.getDeploymentRevisions(clusterCode, namespace, deploymentName).catch(() => []),
      ]);
      const depData = dep || (Array.isArray(dep) ? dep[0] : null);
      setDeployment(depData);
      setScaleValue(depData?.replicas || 0);
      setNewImage(depData?.image || '');

      const allPods = toArray(podRes);
      // 过滤当前 Deployment 的 Pod（按名称前缀，兼容 ownerReference 不可用场景）
      const depPods = allPods.filter(( p: any) =>
        p.namespace === namespace && (p.name || '').startsWith(deploymentName)
      );
      setPods(depPods);

      const allRs = toArray(rsRes);
      const depRs = allRs.filter(( rs: any) =>
        (rs.namespace === namespace) &&
        ((rs.owner_deployment === deploymentName) || (rs.name || '').startsWith(deploymentName))
      );
      setReplicaSets(depRs);

      setRevisions(toArray(revRes));
    } catch (e) {
      console.error('加载详情失败:', e);
    } finally {
      setLoading(false);
    }
  }, [clusterCode, namespace, deploymentName]);

  // 加载 manifest（用于 edit 模式 + YAML 编辑）
  const loadManifest = useCallback(async () => {
    try {
      const yamlText = await kubernetesApi.getResourceYaml(clusterCode, namespace, 'deployments', deploymentName);
      // 简易 YAML→JSON：交给浏览器原生 JSON.parse 兜底（K8s API 多以 JSON 返回）；
      // 若是纯 YAML，则尝试用 js-yaml（如项目已安装），否则保留为 null 让编辑模式降级。
      let parsed: Record<string, any> = null;
      try { parsed = JSON.parse(yamlText); } catch {
        // 非纯 JSON，尝试动态加载 js-yaml
        try {
          const jsyaml: Record<string, any> = await import('js-yaml');
          parsed = jsyaml.load(yamlText);
        } catch {
          parsed = null;
        }
      }
      setManifest(parsed || deployment);
    } catch (e) {
      console.warn('加载 manifest 失败（编辑功能降级）:', e);
      setManifest(deployment);
    }
  }, [clusterCode, namespace, deploymentName, deployment]);

  useEffect(() => { loadData(); }, [loadData]);
  useEffect(() => { if (mode === 'edit' && !manifest) loadManifest(); }, [mode, manifest, loadManifest]);

  // ============ 操作 ============
  const _handleScale = async (delta: number) => {
    const newReplicas = (deployment?.replicas || 0) + delta;
    if (newReplicas < 0) return;
    setActionLoading('scale');
    try {
      await kubernetesApi.scaleDeployment(clusterCode, namespace, deploymentName, newReplicas);
      toast({ title: '扩缩容成功', description: `副本数已设置为 ${newReplicas}` });
      loadData();
    } catch (e) {
      toast({ title: '操作失败', description: e?.message || String(e), variant: 'destructive' });
    } finally { setActionLoading(''); }
  };

  const handleScaleTo = async () => {
    setActionLoading('scale');
    try {
      await kubernetesApi.scaleDeployment(clusterCode, namespace, deploymentName, scaleValue);
      toast({ title: '伸缩成功', description: `副本数已设置为 ${scaleValue}` });
      setModal(null);
      loadData();
    } catch (e) {
      toast({ title: '操作失败', description: e?.message || String(e), variant: 'destructive' });
    } finally { setActionLoading(''); }
  };

  const handleRestart = async () => {
    const ok = await confirm({
      title: '滚动重启',
      description: `确认滚动重启 Deployment "${deploymentName}"？`,
      confirmText: '重启',
    });
    if (!ok) return;
    setActionLoading('restart');
    try {
      await kubernetesApi.restartDeployment(clusterCode, namespace, deploymentName);
      toast({ title: '重启指令已下发', description: 'Deployment 正在滚动重启' });
      setTimeout(loadData, 1500);
    } catch (e) {
      toast({ title: '重启失败', description: e?.message || String(e), variant: 'destructive' });
    } finally { setActionLoading(''); }
  };

  const handleTogglePause = async () => {
    const isPaused = !!deployment?.paused;
    const action = isPaused ? '恢复' : '暂停';
    const ok = await confirm({
      title: `${action}滚动更新`,
      description: `确认${action} Deployment "${deploymentName}" 的滚动更新？`,
      confirmText: action,
    });
    if (!ok) return;
    setActionLoading(isPaused ? 'resume' : 'pause');
    try {
      if (isPaused) {
        await kubernetesApi.resumeDeployment(clusterCode, namespace, deploymentName);
      } else {
        await kubernetesApi.pauseDeployment(clusterCode, namespace, deploymentName);
      }
      toast({ title: `${action}成功`, description: `Deployment 滚动更新已${action}` });
      setTimeout(loadData, 1000);
    } catch (e) {
      toast({ title: `${action}失败`, description: e?.message || String(e), variant: 'destructive' });
    } finally { setActionLoading(''); }
  };

  const handleCICD = () => {
    // 打开 Webhook 弹窗（不跳转流水线）
    setModal({ kind: 'cicd' });
  };

  const handleUpdateImage = async () => {
    if (!newImage.trim()) return;
    setActionLoading('image');
    try {
      await kubernetesApi.updateDeploymentImage(clusterCode, namespace, deploymentName, newImage);
      toast({ title: '镜像更新成功', description: `正在滚动更新为 ${newImage}` });
      setModal(null);
      loadData();
    } catch (e) {
      toast({ title: '更新失败', description: e?.message || String(e), variant: 'destructive' });
    } finally { setActionLoading(''); }
  };

  const handleDelete = async () => {
    setActionLoading('delete');
    try {
      // 复用通用删除：通过 PUT 空文档或调用隐式端点。若无专用端点，则提示。
      const tk = useUserStore.getState().token || '';
      const baseUrl = import.meta.env.VITE_API_BASE_URL || '';
      const url = `${baseUrl}/api/v1/kubernetes/${clusterCode}/namespace/${namespace}/deployments/${deploymentName}`;
      const resp = await fetch(url, { method: 'DELETE', headers: { Authorization: `Bearer ${tk}` } });
      if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
      toast({ title: '删除成功', description: `${deploymentName} 已删除` });
      setModal(null);
      setTimeout(() => navigate(`/kubernetes/${clusterCode}/namespace/${namespace}/deployments`), 800);
    } catch (e) {
      toast({ title: '删除失败', description: e?.message || String(e), variant: 'destructive' });
    } finally { setActionLoading(''); }
  };

  // 日志流（Pod 实时日志）
  const handleShowPodLogs = ( pod: any) => setModal({ kind: 'podLogs', pod: pod.name });
  const handleShowPodYaml = ( pod: any) => setModal({ kind: 'podYaml', pod: pod.name });
  const handleShowPodTerminal = ( pod: any) => {
    setTerminalPod(pod.name);
  };
  const handleShowPodFileBrowser = ( pod: any) => {
    setFileBrowserPod(pod.name);
  };

  // ============ 渲染 ============
  if (loading) {
    return (
      <Card className="bg-slate-900 border-slate-800">
        <CardContent className="p-12 text-center">
          <Loader2 className="h-6 w-6 animate-spin mx-auto text-slate-500" />
          <p className="text-slate-500 mt-3">加载中...</p>
        </CardContent>
      </Card>
    );
  }

  if (!deployment) {
    return (
      <Card className="bg-slate-900 border-slate-800">
        <CardContent className="p-12 text-center">
          <XCircle className="h-8 w-8 mx-auto text-red-400" />
          <p className="text-slate-400 mt-3">未找到 Deployment: {deploymentName}</p>
          <Button variant="outline" className="mt-4" onClick={onBack}>返回</Button>
        </CardContent>
      </Card>
    );
  }

  const ready = deployment.ready_replicas || deployment.readyReplicas || 0;
  const total = deployment.replicas || 0;
  const isHealthy = ready === total && total > 0;
  const _viewBase = `/kubernetes/${clusterCode}/namespace/${namespace}/workload`;

  return (
    <div className="space-y-4">
      {/* ============ 顶部：标题 + 模式标识 + 操作菜单 ============ */}
      <div className="flex items-center justify-between gap-2 flex-wrap">
        <div className="flex items-center gap-3 min-w-0">
          <Button variant="ghost" size="sm" className="text-slate-400" onClick={onBack}>
            <ArrowLeft className="h-4 w-4 mr-1" />返回
          </Button>
          <div className="min-w-0">
            <div className="flex items-center gap-2 flex-wrap">
              <h1 className="text-xl font-bold text-slate-100 truncate">{deploymentName}</h1>
              <Badge variant="outline" className="border-slate-700 text-slate-400">{namespace}</Badge>
              <Badge variant="outline" className="border-slate-700 text-slate-400">Deployment</Badge>
              <Badge
                className={isHealthy
                  ? 'bg-emerald-500/20 text-emerald-400 border-emerald-500/30'
                  : 'bg-amber-500/20 text-amber-400 border-amber-500/30'}
              >
                {isHealthy ? <CheckCircle className="h-3 w-3 mr-1" /> : <AlertTriangle className="h-3 w-3 mr-1" />}
                {ready}/{total}
              </Badge>
              {deployment?.paused && (
                <Badge className="bg-orange-500/20 text-orange-400 border-orange-500/30">
                  <Pause className="h-3 w-3 mr-1" />已暂停更新
                </Badge>
              )}
            </div>
            <p className="text-xs text-slate-500 mt-0.5 truncate">
              镜像: <code className="text-slate-400">{deployment.image || '-'}</code>
            </p>
          </div>
        </div>

        <div className="flex items-center gap-2">
          {/* 模式切换 — 查看 / 编辑 / YAML */}
          <div className="inline-flex rounded-md border border-slate-700 overflow-hidden">
            <button
              className={`px-3 py-1.5 text-xs font-medium transition-colors ${mode === 'view' ? 'bg-slate-700 text-slate-100' : 'bg-transparent text-slate-400 hover:text-slate-200'}`}
              onClick={() => onModeChange('view')}
            >
              查看
            </button>
            <button
              className={`px-3 py-1.5 text-xs font-medium transition-colors ${mode === 'edit' ? 'bg-blue-600 text-white' : 'bg-transparent text-slate-400 hover:text-slate-200'}`}
              onClick={() => onModeChange('edit')}
            >
              编辑
            </button>
            <button
              className={`px-3 py-1.5 text-xs font-medium transition-colors ${mode === 'yaml' ? 'bg-emerald-600 text-white' : 'bg-transparent text-slate-400 hover:text-slate-200'}`}
              onClick={() => onModeChange('yaml')}
            >
              YAML
            </button>
          </div>

          <Button variant="outline" size="sm" className="border-slate-700 text-slate-400" onClick={loadData} title="刷新">
            <RefreshCw className="h-4 w-4" />
          </Button>

          {/* 操作按钮行 */}
          <div className="flex items-center gap-1.5">
            <Button variant="outline" size="sm" className="border-slate-700 text-slate-300" onClick={() => setModal({ kind: 'image' })}>
              <ImageIcon className="h-3.5 w-3.5 mr-1" />调整镜像
            </Button>
            <Button variant="outline" size="sm" className="border-slate-700 text-slate-300" onClick={handleRestart}>
              <RotateCw className="h-3.5 w-3.5 mr-1" />重启
            </Button>
            <Button
              variant="outline" size="sm"
              className="border-slate-700 text-slate-300"
              disabled={!!actionLoading}
              onClick={handleTogglePause}
            >
              {deployment?.paused
                ? <><Play className="h-3.5 w-3.5 mr-1 text-green-400" />恢复</>
                : <><Pause className="h-3.5 w-3.5 mr-1 text-orange-400" />暂停</>
              }
            </Button>
            <Button variant="outline" size="sm" className="border-slate-700 text-slate-300" onClick={handleCICD}>
              <Rocket className="h-3.5 w-3.5 mr-1 text-purple-400" />CI/CD
            </Button>
            <Button variant="outline" size="sm" className="border-slate-700 text-red-400 hover:bg-red-500/10" onClick={() => setModal({ kind: 'delete' })}>
              <Trash2 className="h-3.5 w-3.5 mr-1" />删除
            </Button>
          </div>
        </div>
      </div>

      {/* ============ 主体：view / edit / yaml ============ */}
      {mode === 'view' ? (
        <DeploymentView
          clusterCode={clusterCode}
          namespace={namespace}
          deployment={deployment}
          pods={pods}
          replicaSets={replicaSets}
          revisions={revisions}
          onRefresh={loadData}
          onShowPodLogs={handleShowPodLogs}
          onShowPodTerminal={handleShowPodTerminal}
          onShowPodYaml={handleShowPodYaml}
          onShowPodFileBrowser={handleShowPodFileBrowser}
        />
      ) : mode === 'yaml' ? (
        /* YAML 编辑模式 — 内联 CodeMirror 编辑器 */
        <YamlViewer
          clusterCode={clusterCode}
          namespace={namespace}
          resource="deployments"
          name={deploymentName}
          cleanBeforeEdit
          inline
          onSaved={loadData}
          onClose={() => onModeChange('view')}
        />
      ) : (
        /* 可视化编辑模式 — Tab 系统 */
        <EditModeContainer
          clusterCode={clusterCode}
          namespace={namespace}
          deploymentName={deploymentName}
          manifest={manifest}
          onSaved={() => { loadManifest(); loadData(); onModeChange('view'); }}
          onCancel={() => onModeChange('view')}
        />
      )}

      {/* ============ 弹窗：YAML ============ */}
      {modal?.kind === 'yaml' && (
        <YamlViewer
          clusterCode={clusterCode}
          namespace={namespace}
          resource="deployments"
          name={deploymentName}
          cleanBeforeEdit
          onClose={() => setModal(null)}
          onSaved={loadData}
        />
      )}

      <ActionModals
        modal={modal}
        deployment={deployment}
        namespace={namespace}
        deploymentName={deploymentName}
        newImage={newImage}
        setNewImage={setNewImage}
        scaleValue={scaleValue}
        setScaleValue={setScaleValue}
        actionLoading={actionLoading}
        onClose={() => setModal(null)}
        onUpdateImage={handleUpdateImage}
        onScaleTo={handleScaleTo}
        onDelete={handleDelete}
      />

      {/* ============ CI/CD Webhook 弹窗 ============ */}
      {modal?.kind === 'cicd' && (
        <ModalShell title="CI/CD Webhook" onClose={() => setModal(null)}>
          <CICDWebhookContent clusterCode={clusterCode} namespace={namespace} deploymentName={deploymentName} />
        </ModalShell>
      )}

      {/* ============ Pod 日志 ============ */}
      {modal?.kind === 'podLogs' && (
        <PodLogsModal
          clusterCode={clusterCode}
          namespace={namespace}
          podName={modal.pod}
          containers={(pods.find(p => p.name === modal.pod)?.containers || []).map(( c: any) => c.name).filter(Boolean)}
          onClose={() => setModal(null)}
        />
      )}

      {/* ============ Pod 终端 ============ */}
      <PodExecTerminal
        open={!!terminalPod}
        onOpenChange={(open) => { if (!open) setTerminalPod(null); }}
        clusterId={clusterId}
        namespace={namespace}
        podName={terminalPod || ''}
        containers={(pods.find(( p: any) => p.name === terminalPod)?.containers || []).map(( c: any) => c.name).filter(Boolean)}
      />
      {/* ============ Pod 文件浏览器 ============ */}
      <PodFileBrowser
        open={!!fileBrowserPod}
        onOpenChange={(open) => { if (!open) setFileBrowserPod(null); }}
        clusterCode={clusterCode}
        namespace={namespace}
        podName={fileBrowserPod || ''}
        containers={(pods.find(( p: any) => p.name === fileBrowserPod)?.containers || []).map(( c: any) => c.name).filter(Boolean)}
      />
    </div>
  );
}