import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
import { useLocation, useNavigate } from 'react-router-dom';
import { ArrowLeft, Blocks, Check, Cpu, FileText, Files, FolderOpen, Plus, Puzzle, Trash2, Upload, X } from 'lucide-react';
import { toast } from 'sonner';
import { Badge } from '@/components/ui/badge';
import { Button } from '@/components/ui/button';
import { ConfirmDialog } from '@/components/ui/confirm-dialog';
import { Sheet, SheetClose, SheetContent, SheetDescription, SheetTitle } from '@/components/ui/sheet';
import { AgentCreationDialog, type AgentCreationInput } from '@/components/coding/AgentCreationDialog';
import { PluginServices } from '@/components/plugins/PluginServices';
import { ProjectPublishAction } from '@/components/works/ProjectPublishAction';
import { buildCodingModelOptions, parseCodingModelKey, type CodingModelOption } from '@/lib/coding-model-options';
import { getCodingSkills } from '@/lib/coding-product-tools';
import { abortCodingConversation } from '@/lib/coding-conversations';
import { isCanonicalCodingProjectId } from '@/lib/coding-projects';
import { getSkillDisplayInfo } from '@/lib/skill-display';
import { getPluginServiceTab, type PluginServiceTab } from '@/lib/plugin-services';
import { getAgentAvatarSrc } from '@/lib/agent-avatars';
import { cn } from '@/lib/utils';
import { codingConversationStore } from '@/stores/coding-conversations';
import { codingPluginsStore, useCodingPluginsStore } from '@/stores/coding-plugins';
import { useCodingWorkspaceStore } from '@/stores/coding-workspace';
import { useProjectConfigStore } from '@/stores/project-config';
import { useProviderStore } from '@/stores/providers';
import type { CodingProjectAgent, CodingProjectConfig } from '@/types/coding-project';
import type { ProjectIdentityChoice } from '../../../shared/coding-project-contracts';

const EMPTY_FILES: string[] = [];
type DrawerMode = 'models' | 'knowledge' | 'skills' | 'plugins' | null;
type ProjectIdentityKind = ProjectIdentityChoice['kind'];
type SkillStructureEntry = { path: string; type: 'file' | 'directory' };
type SkillInfo = {
  id: string;
  name: string;
  description: string;
  available: boolean;
  effective: boolean;
  location: string;
  content: string;
  entries: SkillStructureEntry[];
};

function createCustomAgent(index: number, modelKey: string): CodingProjectAgent {
  const now = new Date().toISOString();
  const model = parseCodingModelKey(modelKey);
  return {
    id: `custom-agent-${Date.now()}-${index}`,
    avatarId: 'avatar-01',
    roleName: '项目智能体',
    name: '',
    builtIn: false,
    enabled: true,
    model: model ? { ...model, thinkingLevel: 'off' } : null,
    modelResolution: model ? 'resolved' : 'required',
    skillIds: [],
    responsibility: { mission: '', owns: [], boundaries: [], collaborators: [], principles: [] },
    prompt: '',
    archivedAt: null,
    pinned: false,
    createdAt: now,
    updatedAt: now,
  };
}

function ResourceCard({ id, icon, title, subtitle, onClick }: { id: string; icon: React.ReactNode; title: string; subtitle: string; onClick: () => void }) {
  return <button type="button" data-testid={`resource-card-${id}`} onClick={onClick} className="config-motion-resource surface-card motion-press rounded-2xl border border-border/70 bg-background p-3 text-left shadow-none hover:shadow-soft">
    <div className="flex items-center gap-2"><span className="flex h-8 w-8 items-center justify-center rounded-lg bg-surface-subtle text-brand [&>svg]:h-4 [&>svg]:w-4">{icon}</span><p className="text-sm font-semibold">{title}</p></div><p className="mt-1.5 truncate text-[11px] font-medium text-muted-foreground">{subtitle}</p>
  </button>;
}

function DrawerFrame({ title, desc, onClose, children, closeLabel = '关闭', closeIcon = 'close' }: { title: string; desc: string; onClose: () => void; children: React.ReactNode; closeLabel?: string; closeIcon?: 'close' | 'back' }) {
  const closeButton = <Button type="button" variant="ghost" size="icon" onClick={onClose} aria-label={closeLabel} title={closeLabel} className="relative z-10 shrink-0">{closeIcon === 'back' ? <ArrowLeft className="h-4 w-4" /> : <X className="h-4 w-4" />}</Button>;
  return <div className="flex min-h-0 flex-1 flex-col"><div className="glass-surface drawer-motion-header flex items-center justify-between gap-3 border-b border-border/70 bg-background px-5 py-4"><div className="min-w-0 flex-1"><SheetTitle className="text-lg font-semibold">{title}</SheetTitle><SheetDescription className="mt-1 text-sm font-medium text-muted-foreground">{desc}</SheetDescription></div>{closeIcon === 'back' ? closeButton : <SheetClose asChild>{closeButton}</SheetClose>}</div><div className="drawer-motion-body min-h-0 flex-1 overflow-auto p-5">{children}</div></div>;
}

function SkillDetail({ skill }: { skill: SkillInfo }) {
  return <div data-testid="skill-detail-view" className="space-y-4">
    <section data-testid="skill-structure" className="rounded-xl border border-foreground/15 bg-surface-subtle p-4">
      <div className="flex items-center gap-2"><FolderOpen className="h-4 w-4 text-brand" /><h3 className="font-semibold">技能目录结构</h3></div>
      <p className="mt-1 truncate text-[11px] font-medium text-muted-foreground" title={skill.location}>{skill.location}</p>
      <div className="mt-3 space-y-1 rounded-lg border border-foreground/10 bg-white p-2">
        {skill.entries.length > 0 ? skill.entries.map((entry) => {
          const depth = entry.path.split('/').length - 1;
          return <div key={`${entry.type}:${entry.path}`} className="flex items-center gap-2 rounded-md py-1 text-xs font-medium text-foreground" style={{ paddingLeft: `${8 + depth * 14}px` }}>
            {entry.type === 'directory' ? <FolderOpen className="h-3.5 w-3.5 shrink-0 text-brand" /> : <FileText className="h-3.5 w-3.5 shrink-0 text-muted-foreground" />}
            <code className="truncate">{entry.type === 'directory' ? `${entry.path}/` : entry.path}</code>
          </div>;
        }) : <p className="p-2 text-xs text-muted-foreground">暂无可展示的文件结构。</p>}
      </div>
    </section>
    <section data-testid="skill-main-file" className="rounded-xl border border-foreground/15 bg-white p-4">
      <div className="flex items-center gap-2"><FileText className="h-4 w-4 text-brand" /><h3 className="font-semibold">SKILL.md</h3></div>
      <pre className="mt-3 max-h-[min(58vh,680px)] overflow-auto whitespace-pre-wrap break-words rounded-lg border border-foreground/10 bg-surface-subtle p-3 font-mono text-[11px] leading-5 text-foreground">{skill.content || 'SKILL.md 暂无内容。'}</pre>
    </section>
  </div>;
}

function AgentCard({ agent, onOpen }: { agent: CodingProjectAgent; onOpen: () => void }) {
  return <button type="button" data-testid={`project-agent-${agent.id}`} onClick={onOpen} className="config-motion-agent surface-card motion-press h-[260px] w-[210px] flex-none rounded-2xl border border-border/70 bg-background p-4 text-left shadow-none hover:shadow-soft"><img src={getAgentAvatarSrc(agent.avatarId, agent.avatarDataUrl)} alt="" className="agent-motion-avatar mx-auto h-20 w-20 rounded-xl border border-border object-cover [image-rendering:pixelated]" /><div className="mt-4 flex items-center justify-between gap-2"><p className="truncate font-semibold">{agent.name || '未命名'}</p><Badge className="shrink-0 border border-brand/15 bg-brand-soft text-brand">可用</Badge></div><p className="mt-1 truncate text-xs font-semibold text-muted-foreground">{agent.roleName}</p><p className="mt-3 line-clamp-3 min-h-12 text-xs text-muted-foreground">{agent.responsibility.mission}</p><p className="mt-2 text-[11px] text-muted-foreground">{agent.skillIds.length} 个技能</p></button>;
}

function ModelCard({ model }: { model: CodingModelOption }) {
  return <div data-testid={`model-card-${model.key.replace(/[^a-zA-Z0-9_-]+/gu, '-')}`} className="rounded-xl border border-foreground/15 bg-white p-3">
    <div className="flex items-start gap-3">
      <span className="flex h-9 w-9 shrink-0 items-center justify-center rounded-lg bg-brand-soft text-brand" aria-hidden="true"><Cpu className="h-4 w-4" /></span>
      <div className="min-w-0 flex-1">
        <div className="flex items-start justify-between gap-2">
          <p className="min-w-0 truncate font-semibold" title={model.label}>{model.label}</p>
          <Badge className="shrink-0 border border-border/80 bg-surface-subtle text-foreground">已配置</Badge>
        </div>
        <p className="mt-1 truncate text-xs font-medium text-muted-foreground" title={model.accountId}>{model.accountId}</p>
      </div>
    </div>
  </div>;
}

function ModelList({ models }: { models: CodingModelOption[] }) {
  if (models.length === 0) {
    return <div data-testid="project-model-empty-state" className="rounded-xl border border-dashed border-foreground/15 bg-white p-4 text-sm font-medium text-muted-foreground">
      当前没有可用模型，请先在模型设置中完成配置。智能体的默认模型在智能体配置中设置。
    </div>;
  }
  return <div data-testid="project-model-list" className="space-y-3">
    <p className="text-xs font-medium leading-5 text-muted-foreground">此处仅展示已经配置的模型。每个智能体可单独设置新对话使用的默认模型。</p>
    <div className="space-y-2">
      {models.map((model) => <ModelCard key={model.key} model={model} />)}
    </div>
  </div>;
}

export function ProjectConfiguration() {
  const activeProject = useCodingWorkspaceStore((state) => state.activeProject);
  const conversations = useCodingWorkspaceStore((state) => state.conversations);
  const removeProject = useCodingWorkspaceStore((state) => state.removeProject);
  const reloadWorkspace = useCodingWorkspaceStore((state) => state.load);
  const stored = useProjectConfigStore((state) => activeProject ? state.configsByProjectId[activeProject.id] : undefined);
  const knowledge = useProjectConfigStore((state) => activeProject ? state.knowledgeByProjectId[activeProject.id] ?? EMPTY_FILES : EMPTY_FILES);
  const load = useProjectConfigStore((state) => state.load);
  const save = useProjectConfigStore((state) => state.save);
  const resolveIdentity = useProjectConfigStore((state) => state.resolveIdentity);
  const makeIndependentCopy = useProjectConfigStore((state) => state.makeIndependentCopy);
  const uploadKnowledge = useProjectConfigStore((state) => state.uploadKnowledge);
  const removeProjectConfig = useProjectConfigStore((state) => state.remove);
  const providerAccounts = useProviderStore((state) => state.accounts);
  const providerVendors = useProviderStore((state) => state.vendors);
  const refreshProviderSnapshot = useProviderStore((state) => state.refreshProviderSnapshot);
  const pluginProjection = useCodingPluginsStore((state) => state.projection);
  const pluginLoadState = useCodingPluginsStore((state) => state.loadState);
  const [draft, setDraft] = useState<CodingProjectConfig | null>(null);
  const [drawerMode, setDrawerMode] = useState<DrawerMode>(null);
  const [pluginServiceTab, setPluginServiceTab] = useState<PluginServiceTab>('project');
  const [activeSkillId, setActiveSkillId] = useState<string | null>(null);
  const [activeAgentId, setActiveAgentId] = useState<string | null>(null);
  const [skills, setSkills] = useState<SkillInfo[]>([]);
  const [saving, setSaving] = useState(false);
  const [identityKind, setIdentityKind] = useState<ProjectIdentityKind>('create');
  const [identityProjectId, setIdentityProjectId] = useState('');
  const [identitySaving, setIdentitySaving] = useState(false);
  const [identityError, setIdentityError] = useState<string | null>(null);
  const [independentCopyDialogOpen, setIndependentCopyDialogOpen] = useState(false);
  const [deleteDialogOpen, setDeleteDialogOpen] = useState(false);
  const [partnerDialogOpen, setPartnerDialogOpen] = useState(false);
  const [archiveAgentId, setArchiveAgentId] = useState<string | null>(null);
  const knowledgeInputRef = useRef<HTMLInputElement | null>(null);
  const navigate = useNavigate();
  const location = useLocation();
  const loadSkills = useCallback(() => {
    void getCodingSkills()
      .then((result) => setSkills(result.skills.map((skill) => ({
        id: skill.id,
        ...getSkillDisplayInfo(skill.id),
        available: skill.available,
        effective: skill.effective,
        location: skill.location ?? '',
        content: skill.content ?? '',
        entries: skill.entries ?? [{ path: 'SKILL.md', type: 'file' }],
      }))))
      .catch(() => setSkills([]));
  }, []);

  useEffect(() => { if (activeProject) void load(activeProject.id); }, [activeProject, load]);
  useEffect(() => { if (stored) setDraft(structuredClone(stored)); }, [stored]);
  useEffect(() => {
    setIdentityKind('create');
    setIdentityProjectId('');
    setIdentityError(null);
  }, [activeProject?.id, draft?.projectId]);
  useEffect(() => {
    const requestedAgentId = new URLSearchParams(location.search).get('agent');
    if (!requestedAgentId || !draft?.agents.some((agent) => agent.id === requestedAgentId)) return;
    setActiveAgentId(requestedAgentId);
    setPartnerDialogOpen(true);
  }, [draft, location.search]);
  useEffect(() => {
    const params = new URLSearchParams(location.search);
    if (params.get('resource') !== 'plugins') return;
    setPluginServiceTab(getPluginServiceTab(params.get('pluginTab')));
    setDrawerMode('plugins');
  }, [location.search]);
  useEffect(() => { loadSkills(); }, [loadSkills]);
  useEffect(() => {
    if (drawerMode === 'skills') loadSkills();
  }, [drawerMode, loadSkills]);
  useEffect(() => { void refreshProviderSnapshot(); }, [refreshProviderSnapshot]);
  useEffect(() => {
    if (activeProject) void codingPluginsStore.getState().load(activeProject.id).catch(() => undefined);
  }, [activeProject]);
  const modelOptions = useMemo(
    () => buildCodingModelOptions(providerAccounts, providerVendors),
    [providerAccounts, providerVendors],
  );
  const activeAgent = draft?.agents.find((agent) => agent.id === activeAgentId) ?? null;
  const activeSkill = skills.find((skill) => skill.id === activeSkillId) ?? null;
  const currentPluginProjection = pluginProjection?.project.localProjectId === activeProject?.id ? pluginProjection : null;
  const availablePluginCount = currentPluginProjection?.items.length ?? 0;
  const enabledPluginCount = currentPluginProjection?.items.filter(({ enabled }) => enabled).length ?? 0;
  const pluginSummary = !currentPluginProjection
    ? pluginLoadState === 'error' ? '项目插件暂不可用' : '正在读取项目插件'
    : `${enabledPluginCount} 个已启用 · ${availablePluginCount} 个可用`;
  const playSaveConfirmation = () => undefined;
  const handleBack = () => navigate(-1);
  const handlePluginServiceTabChange = (tab: PluginServiceTab) => {
    setPluginServiceTab(tab);
    const params = new URLSearchParams(location.search);
    params.set('resource', 'plugins');
    params.set('pluginTab', tab);
    navigate({ pathname: '/project-config', search: `?${params.toString()}` }, { replace: true });
  };
  const openPluginServices = () => {
    setPluginServiceTab('project');
    setDrawerMode('plugins');
    const params = new URLSearchParams(location.search);
    params.set('resource', 'plugins');
    params.set('pluginTab', 'project');
    navigate({ pathname: '/project-config', search: `?${params.toString()}` }, { replace: true });
  };
  const closePluginServices = () => {
    setDrawerMode(null);
    const params = new URLSearchParams(location.search);
    params.delete('resource');
    params.delete('pluginTab');
    const search = params.toString();
    navigate({ pathname: '/project-config', search: search ? `?${search}` : '' }, { replace: true });
  };

  if (!activeProject) return <main data-testid="project-configuration-empty-state" className="flex min-h-full items-start bg-background p-8 text-foreground"><p className="pt-4 text-xl font-semibold tracking-[-0.02em]">一念成光，万物可创。</p></main>;
  if (!draft) return <div className="p-8 text-center text-sm font-medium">正在读取项目配置…</div>;

  const updateAgent = (next: CodingProjectAgent) => setDraft((current) => current ? { ...current, agents: current.agents.map((item) => item.id === next.id ? { ...next, updatedAt: new Date().toISOString() } : item) } : current);
  const handlePartnerDialogOpenChange = (open: boolean) => {
    setPartnerDialogOpen(open);
    if (!open) setActiveAgentId(null);
  };
  const handleCreatePartner = async (input: AgentCreationInput) => {
    const selectedModel = parseCodingModelKey(input.model);
    if (!selectedModel) throw new Error('默认模型无效');
    const agent = {
      ...createCustomAgent(draft.agents.length + 1, input.model),
      name: input.name,
      avatarId: input.avatarId,
      avatarDataUrl: input.avatarDataUrl,
      model: { ...selectedModel, thinkingLevel: 'off' as const },
      modelResolution: 'resolved' as const,
      prompt: input.prompt,
      skillIds: input.skillIds,
      responsibility: { mission: input.responsibility, owns: [], boundaries: [], collaborators: [], principles: [] },
    };
    setDraft((current) => current ? { ...current, agents: [...current.agents, agent] } : current);
  };
  const handleUpdatePartner = async (input: AgentCreationInput) => {
    if (!activeAgentId) return;
    const selectedModel = parseCodingModelKey(input.model);
    if (!selectedModel) throw new Error('默认模型无效');
    setDraft((current) => current ? {
      ...current,
      agents: current.agents.map((agent) => agent.id === activeAgentId ? {
        ...agent,
        name: input.name,
        avatarId: input.avatarId,
        avatarDataUrl: input.avatarDataUrl,
        model: {
          ...selectedModel,
          thinkingLevel: agent.model?.thinkingLevel ?? 'off',
        },
        modelResolution: 'resolved',
        prompt: input.prompt,
        skillIds: input.skillIds,
        responsibility: { ...agent.responsibility, mission: input.responsibility },
        updatedAt: new Date().toISOString(),
      } : agent),
    } : current);
  };
  const submit = async () => {
    const names = draft.agents.map((agent) => agent.name.trim()).filter(Boolean);
    const invalid = draft.agents.some((agent) => (
      !agent.name.trim()
      || !agent.avatarId.trim()
      || !agent.model
      || !agent.responsibility.mission.trim()
    )) || new Set(names).size !== draft.agents.length;
    if (invalid) {
      toast.error('请补全智能体名称、头像、默认模型和职责说明；名称需在当前项目内唯一。');
      return;
    }
    setSaving(true);
    try {
      await save(activeProject.id, { ...draft, initialized: true });
      await reloadWorkspace();
      playSaveConfirmation();
      toast.success(draft.initialized ? '项目配置已更新' : '项目初始化完成');
    } catch (error) {
      toast.error(error instanceof Error ? error.message : String(error));
    } finally {
      setSaving(false);
    }
  };
  const handleResolveIdentity = async () => {
    const boundProjectId = identityProjectId.trim();
    if (identityKind === 'bind' && !isCanonicalCodingProjectId(boundProjectId)) {
      setIdentityError('请输入有效的项目 ID（小写 UUID）。');
      return;
    }
    setIdentitySaving(true);
    setIdentityError(null);
    try {
      await resolveIdentity(activeProject.id, identityKind === 'create'
        ? { kind: 'create' }
        : { kind: 'bind', projectId: boundProjectId });
      await reloadWorkspace();
      toast.success('项目身份已设置，之后不可通过普通保存修改。');
    } catch (error) {
      const message = error instanceof Error ? error.message : String(error);
      setIdentityError(message);
      toast.error(message);
    } finally {
      setIdentitySaving(false);
    }
  };
  const handleIndependentCopy = async () => {
    setIdentitySaving(true);
    try {
      await makeIndependentCopy(activeProject.id);
      await reloadWorkspace();
      setIndependentCopyDialogOpen(false);
      toast.success('已设为独立副本，当前文件夹已获得新的项目 ID。');
    } finally {
      setIdentitySaving(false);
    }
  };
  const handleKnowledge = async (file?: File) => { if (!file) return; try { await uploadKnowledge(activeProject.id, file); toast.success(`已上传到 knowledge/${file.name}`); } catch (error) { toast.error(error instanceof Error ? error.message : String(error)); } };
  const handleDeleteProject = async () => {
    await removeProject(activeProject.id);
    removeProjectConfig(activeProject.id);
    setDeleteDialogOpen(false);
    toast.success(`已移除项目 ${activeProject.name}`);
    navigate('/project-config');
  };
  const handleArchiveAgent = async () => {
    if (!archiveAgentId) return;
    const summaries = codingConversationStore.getState().summariesByConversationId;
    const runningConversationIds = conversations
      .filter((conversation) => (
        conversation.agentId === archiveAgentId
        && summaries[conversation.id]?.runStatus !== 'idle'
      ))
      .map((conversation) => conversation.id);
    await Promise.allSettled(runningConversationIds.map(abortCodingConversation));
    const archivedAt = new Date().toISOString();
    setDraft((current) => current ? {
      ...current,
      agents: current.agents.map((agent) => agent.id === archiveAgentId
        ? { ...agent, archivedAt, updatedAt: archivedAt }
        : agent),
    } : current);
    setArchiveAgentId(null);
    setPartnerDialogOpen(false);
    setActiveAgentId(null);
  };

  return <main className="-m-5 flex min-h-[calc(100%+2.5rem)] min-h-0 flex-col overflow-auto bg-background p-4 text-foreground sm:-m-6 sm:min-h-[calc(100%+3rem)]" data-testid="project-configuration-page">
    <div className="mx-auto flex min-h-0 w-full max-w-7xl flex-1 flex-col gap-3">
      <div className="config-motion-title flex items-center gap-2">
        <Button type="button" variant="ghost" size="icon" data-testid="project-configuration-back-button" aria-label="返回" title="返回" onClick={handleBack} className="h-8 w-8 shrink-0 text-muted-foreground hover:bg-surface-subtle hover:text-foreground">
          <ArrowLeft className="h-4 w-4" />
        </Button>
        <h1 className="text-xl font-semibold">项目配置</h1>
      </div>
      <section data-testid="project-identity-card" className="surface-card rounded-2xl border border-border/70 bg-background p-5 shadow-soft">
        {draft.projectId ? (
          <div className="flex flex-col gap-3 sm:flex-row sm:items-start sm:justify-between">
            <div className="min-w-0">
              <h2 className="text-base font-semibold">项目身份</h2>
              <p className="mt-1 text-sm font-medium text-muted-foreground">当前项目 ID</p>
              <code className="mt-2 block break-all rounded-lg border border-foreground/10 bg-surface-subtle px-3 py-2 text-xs font-semibold text-foreground" data-testid="project-identity-value">{draft.projectId}</code>
              <p className="mt-2 text-xs font-medium leading-5 text-muted-foreground">
                同一账号绑定相同项目 ID 会共享开发数据；项目 ID 不是凭据。
              </p>
            </div>
            <Button
              type="button"
              variant="outline"
              data-testid="independent-copy-button"
              className="shrink-0 border-brand/25 bg-brand-soft text-foreground"
              onClick={() => setIndependentCopyDialogOpen(true)}
              disabled={identitySaving}
            >
              设为独立副本
            </Button>
          </div>
        ) : (
          <form
            data-testid="legacy-project-identity-card"
            className="space-y-3"
            onSubmit={(event) => {
              event.preventDefault();
              void handleResolveIdentity();
            }}
          >
            <div>
              <h2 className="text-base font-semibold">为旧项目设置身份</h2>
              <p className="mt-1 text-sm font-medium leading-5 text-muted-foreground">
                这是一个没有项目 ID 的旧项目。此操作只会为当前文件夹设置一次身份；项目文件和云端数据都不会被复制。
              </p>
            </div>
            <fieldset className="space-y-2">
              <legend className="text-xs font-semibold">选择项目 ID</legend>
              <div className="grid gap-2 sm:grid-cols-2">
                <label className={cn(
                  'cursor-pointer rounded-xl border border-foreground/10 bg-white p-3 text-sm font-semibold',
                  identityKind === 'create' ? 'ring-2 ring-brand/35 shadow-float' : 'hover:shadow-float',
                )}>
                  <input
                    type="radio"
                    name="legacy-project-identity"
                    value="create"
                    aria-label="创建新的项目 ID"
                    checked={identityKind === 'create'}
                    onChange={() => {
                      setIdentityKind('create');
                      setIdentityError(null);
                    }}
                    disabled={identitySaving}
                  />
                  <span className="ml-2">创建新的项目 ID</span>
                  <span className="mt-2 block text-[11px] font-medium leading-5 text-muted-foreground">
                    生成新的小写 UUID；不会复制云端开发数据。
                  </span>
                </label>
                <label className={cn(
                  'cursor-pointer rounded-xl border border-foreground/10 bg-white p-3 text-sm font-semibold',
                  identityKind === 'bind' ? 'ring-2 ring-brand/35 shadow-float' : 'hover:shadow-float',
                )}>
                  <input
                    type="radio"
                    name="legacy-project-identity"
                    value="bind"
                    aria-label="绑定已有项目 ID"
                    checked={identityKind === 'bind'}
                    onChange={() => {
                      setIdentityKind('bind');
                      setIdentityError(null);
                    }}
                    disabled={identitySaving}
                  />
                  <span className="ml-2">绑定已有项目 ID</span>
                  <span className="mt-2 block text-[11px] font-medium leading-5 text-muted-foreground">
                    只接受规范的小写 UUID。
                  </span>
                </label>
              </div>
            </fieldset>
            {identityKind === 'bind' ? (
              <div className="space-y-2 rounded-xl border border-foreground/10 bg-surface-subtle p-3">
                <label className="block text-xs font-semibold" htmlFor="legacy-project-identity-id">已有项目 ID</label>
                <input
                  id="legacy-project-identity-id"
                  value={identityProjectId}
                  onChange={(event) => {
                    setIdentityProjectId(event.target.value);
                    setIdentityError(null);
                  }}
                  placeholder="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
                  autoComplete="off"
                  spellCheck={false}
                  className="w-full rounded-md border border-foreground/15 bg-white px-3 py-2 font-mono text-sm font-medium outline-none focus:ring-2 focus:ring-brand/20"
                  disabled={identitySaving}
                />
                <p className="text-[11px] font-medium leading-5 text-muted-foreground">
                  同一账号绑定相同项目 ID 会共享开发数据；项目 ID 不是凭据。
                </p>
              </div>
            ) : null}
            {identityError ? <p role="alert" data-testid="project-identity-error" className="rounded-md border border-foreground/15 bg-accent-soft px-3 py-2 text-xs font-semibold">{identityError}</p> : null}
            <div className="flex justify-end">
              <Button type="submit" data-testid="resolve-project-identity-button" className="border border-brand/20 bg-brand text-primary-foreground" disabled={identitySaving || (identityKind === 'bind' && !identityProjectId.trim())}>
                {identitySaving ? '设置中…' : '设置项目身份'}
              </Button>
            </div>
          </form>
        )}
      </section>
      <section className="grid gap-3 sm:grid-cols-2 xl:grid-cols-4"><ResourceCard id="models" icon={<Cpu />} title="可用模型" subtitle={`${modelOptions.length} 个可用模型`} onClick={() => setDrawerMode('models')} /><ResourceCard id="skills" icon={<Blocks />} title="可用技能" subtitle={`${skills.length} 项可用技能`} onClick={() => { setActiveSkillId(null); setDrawerMode('skills'); }} /><ResourceCard id="knowledge" icon={<Files />} title="知识文件" subtitle={`${knowledge.length} 个知识文件`} onClick={() => setDrawerMode('knowledge')} /><ResourceCard id="plugins" icon={<Puzzle />} title="插件服务" subtitle={pluginSummary} onClick={openPluginServices} /></section>
      <section id="project-agents-section" className="config-motion-partners surface-card rounded-2xl border border-border/70 bg-background p-5 shadow-soft"><div className="mb-4 flex items-center justify-between gap-3"><div><h2 className="text-xl font-semibold">项目智能体</h2><p className="mt-1 text-sm font-medium text-muted-foreground">智能体配置仅属于当前项目；每个智能体可以拥有多条独立对话。</p></div><Button type="button" size="icon" className="h-8 w-8 rounded-full border border-brand/20 bg-brand-soft text-brand" aria-label="创建智能体" title="创建智能体" onClick={() => { if (modelOptions.length === 0) { toast.error('请先在模型设置中配置至少一个可用模型。'); setDrawerMode('models'); return; } setActiveAgentId(null); setPartnerDialogOpen(true); }}><Plus className="h-4 w-4" /></Button></div><div data-testid="agent-cards-scroll-region" className="-m-2 flex gap-4 overflow-auto p-2">{draft.agents.filter((agent) => !agent.archivedAt).map((agent) => <AgentCard key={agent.id} agent={agent} onOpen={() => { setActiveAgentId(agent.id); setPartnerDialogOpen(true); }} />)}{draft.agents.every((agent) => agent.archivedAt) ? <div className="w-full rounded-xl border border-dashed border-foreground/15 p-6 text-center text-sm font-medium text-muted-foreground">当前项目还没有智能体，点击右上角的 + 创建。</div> : null}</div>{draft.agents.some((agent) => agent.archivedAt) ? <div className="mt-4 border-t border-border/70 pt-4"><p className="text-xs font-semibold uppercase tracking-[0.14em] text-muted-foreground">已归档</p><div className="mt-2 flex flex-wrap gap-2">{draft.agents.filter((agent) => agent.archivedAt).map((agent) => <Button key={agent.id} type="button" variant="outline" className="border-border/70 bg-surface-subtle" onClick={() => updateAgent({ ...agent, archivedAt: null })}>{agent.name || '未命名智能体'} · 恢复</Button>)}</div></div> : null}</section>
      <div data-testid="project-configuration-actions" className="glass-surface config-motion-actions sticky bottom-3 z-10 mt-auto flex shrink-0 flex-col gap-2 rounded-2xl border border-border/70 bg-background/85 p-2 shadow-float sm:flex-row sm:items-start sm:justify-between">
        <Button type="button" variant="outline" size="sm" onClick={() => setDeleteDialogOpen(true)} className="h-9 w-full border-brand/25 bg-background px-3 font-semibold text-foreground shadow-none hover:border-brand/40 hover:bg-brand-soft sm:w-auto"><Trash2 className="mr-2 h-4 w-4" />删除项目</Button>
        <div data-testid="project-configuration-primary-actions" className="flex w-full flex-col gap-2 sm:ml-auto sm:w-auto sm:flex-row sm:items-start sm:justify-end">
          {draft.projectType === 'mini_game' || draft.projectType === 'mini_program' ? (
            <ProjectPublishAction
              key={activeProject.id}
              project={activeProject}
              projectType={draft.projectType}
              buttonVariant="outline"
              buttonSize="sm"
            />
          ) : null}
          <Button onClick={() => void submit()} disabled={saving} className="project-save-button h-10 w-full border border-brand/20 bg-brand px-4 font-semibold text-primary-foreground sm:w-auto"><Check className="mr-2 h-4 w-4" />{saving ? '保存中…' : draft.initialized ? '保存项目配置' : '确认并完成初始化'}</Button>
        </div>
      </div>
    </div>
    <AgentCreationDialog
      open={partnerDialogOpen}
      onOpenChange={handlePartnerDialogOpenChange}
      modelOptions={modelOptions}
      skills={skills}
      agent={activeAgent}
      existingAgentNames={draft.agents.filter((agent) => agent.id !== activeAgentId).map((agent) => agent.name)}
      onCreate={handleCreatePartner}
      onUpdate={handleUpdatePartner}
      onArchive={activeAgent && !activeAgent.builtIn ? () => setArchiveAgentId(activeAgent.id) : undefined}
      title={activeAgent ? `${activeAgent.name || '未命名智能体'} · 编辑智能体` : '创建项目智能体'}
      submitLabel={activeAgent ? '保存智能体' : '创建智能体'}
    />
    <Sheet open={drawerMode !== null} onOpenChange={(open) => { if (!open) { if (drawerMode === 'plugins') closePluginServices(); else setDrawerMode(null); setActiveSkillId(null); } }}><SheetContent className={cn('glass-surface flex flex-col overflow-hidden border-l border-border/70 bg-background/90 p-0 text-foreground sm:max-w-none', drawerMode === 'plugins' ? 'w-[min(1080px,96vw)]' : 'w-[min(430px,94vw)]')}>
      {drawerMode === 'models' ? <DrawerFrame title="可用模型" desc="查看已配置的模型；智能体默认模型在智能体配置中设置。" onClose={() => setDrawerMode(null)}><ModelList models={modelOptions} /></DrawerFrame> : null}
      {drawerMode === 'knowledge' ? <DrawerFrame title="知识文件" desc="文件保存在当前项目的 knowledge/ 目录中。" onClose={() => setDrawerMode(null)}><input ref={knowledgeInputRef} type="file" className="sr-only" onChange={(event) => { void handleKnowledge(event.target.files?.[0]); event.currentTarget.value = ''; }} /><Button className="w-full border border-foreground/15 bg-brand-soft text-foreground" onClick={() => knowledgeInputRef.current?.click()}><Upload className="mr-2 h-4 w-4" />上传知识文件</Button><div className="mt-5 space-y-3">{knowledge.length ? knowledge.map((file) => <div key={file} className="rounded-lg border border-foreground/15 bg-white p-3 font-semibold">{file}</div>) : <div className="rounded-lg border border-dashed border-foreground/15 bg-white p-4 text-sm font-medium">当前还没有知识文件。</div>}</div></DrawerFrame> : null}
      {drawerMode === 'skills' && activeSkill ? <DrawerFrame title={`${activeSkill.name} · 技能详情`} desc="查看技能目录结构和主文件 SKILL.md。" onClose={() => setActiveSkillId(null)} closeLabel="返回技能列表" closeIcon="back"><SkillDetail skill={activeSkill} /></DrawerFrame> : null}
      {drawerMode === 'skills' && !activeSkill ? <DrawerFrame title="可用技能" desc="查看技能目录与主文件；在智能体配置中启用所需技能。" onClose={() => setDrawerMode(null)}><div className="space-y-3">{skills.length > 0 ? skills.map((skill) => <button key={skill.id} type="button" data-testid={`skill-card-${skill.id}`} aria-label={`查看技能详情：${skill.name}`} onClick={() => setActiveSkillId(skill.id)} className="w-full rounded-lg border border-foreground/15 bg-white p-3 text-left transition hover:border-brand/40 hover:bg-brand-soft/30"><div className="flex items-start gap-3"><Blocks className="mt-0.5 h-4 w-4 shrink-0 text-brand" /><span className="min-w-0 flex-1"><span className="block font-semibold">{skill.name}</span><span className="mt-1 block text-sm text-muted-foreground">{skill.description}</span><span className="mt-2 block text-[11px] font-medium text-brand">查看目录与 SKILL.md</span></span><ArrowLeft className="mt-0.5 h-4 w-4 shrink-0 rotate-180 text-muted-foreground" aria-hidden="true" /></div></button>) : <div className="rounded-lg border border-dashed border-foreground/15 bg-white p-4 text-sm font-medium text-muted-foreground">当前没有可查看的技能。</div>}</div></DrawerFrame> : null}
      {drawerMode === 'plugins' ? <DrawerFrame title="插件服务" desc="发现与下载插件，并为当前项目单独启用；伙伴 Skill 仍在智能体配置中分配。" onClose={closePluginServices}><PluginServices value={pluginServiceTab} onValueChange={handlePluginServiceTabChange} onProjectPluginsChanged={loadSkills} onResolveIdentity={closePluginServices} onManageAgents={closePluginServices} /></DrawerFrame> : null}
    </SheetContent></Sheet>
    <ConfirmDialog
      open={Boolean(archiveAgentId)}
      title={`归档智能体“${draft.agents.find((agent) => agent.id === archiveAgentId)?.name || '未命名智能体'}”？`}
      message="归档后将停止提供新的使用入口，但会保留智能体配置和全部对话记录；你可以之后在智能体列表底部恢复。"
      confirmLabel="确认归档"
      cancelLabel="取消"
      onCancel={() => setArchiveAgentId(null)}
      onConfirm={handleArchiveAgent}
      onError={(error) => toast.error(error instanceof Error ? error.message : String(error))}
    />
    <ConfirmDialog
      open={deleteDialogOpen}
      title={`删除项目“${activeProject.name}”？`}
      message="项目会从 Makelore 的项目列表中移除，但不会删除磁盘中的项目文件。此操作需要你明确确认。"
      confirmLabel="确认删除项目"
      cancelLabel="取消"
      variant="destructive"
      onCancel={() => setDeleteDialogOpen(false)}
      onConfirm={handleDeleteProject}
      onError={(error) => toast.error(error instanceof Error ? error.message : String(error))}
    />
    <ConfirmDialog
      open={independentCopyDialogOpen}
      title="设为独立副本？"
      message="只更新当前文件夹中的项目 ID；项目文件保持原位，不会移动或复制文件，也不会复制云端开发数据。此操作会为当前文件夹生成新的项目 ID，原项目不会被修改。"
      confirmLabel="确认设为独立副本"
      cancelLabel="取消"
      onCancel={() => setIndependentCopyDialogOpen(false)}
      onConfirm={handleIndependentCopy}
      onError={(error) => toast.error(error instanceof Error ? error.message : String(error))}
    />
  </main>;
}

export default ProjectConfiguration;