// 节点类型目录 —— Studio 画布的"类型化节点"定义（决定面板、配色、检查器字段）。
// 与后端 DSL / Eino 图节点对齐：输入 / 检索(RAG) / Agent / 工具 / 记忆 / 分支 / 并行 / 汇聚 / 渲染 / 输出。

export type FieldType = "text" | "textarea" | "number" | "select" | "checkbox";

export interface Field {
  key: string;
  label: string;
  type: FieldType;
  options?: string[];
  placeholder?: string;
  required?: boolean;
}

export interface NodeKind {
  kind: string;
  label: string;
  accent: string; // 左色条 / 标签配色（tailwind 类）
  badge: string;
  desc: string;
  fields: Field[];
  defaults: Record<string, unknown>;
}

export const NODE_KINDS: Record<string, NodeKind> = {
  input: {
    kind: "input",
    label: "输入",
    accent: "border-l-amber-500",
    badge: "bg-amber-100 text-amber-700",
    desc: "用户提问 / 文件 / 变量",
    fields: [
      { key: "text", label: "用户输入", type: "textarea", placeholder: "要发送给模型的内容…", required: true },
      { key: "source", label: "来源", type: "select", options: ["用户输入", "本地文件", "变量"] },
    ],
    defaults: { text: "", source: "用户输入" },
  },
  retriever: {
    kind: "retriever",
    label: "检索 (RAG)",
    accent: "border-l-sky-500",
    badge: "bg-sky-100 text-sky-700",
    desc: "绑定知识库做混合检索",
    fields: [
      { key: "kb", label: "知识库", type: "select", options: ["（未建库）", "合同库", "判例库"], required: true },
      { key: "topK", label: "TopK", type: "number" },
      { key: "rerank", label: "重排 Rerank", type: "checkbox" },
    ],
    defaults: { kb: "（未建库）", topK: 5, rerank: true },
  },
  agent: {
    kind: "agent",
    label: "Agent / LLM",
    accent: "border-l-violet-500",
    badge: "bg-violet-100 text-violet-700",
    desc: "调模型生成",
    fields: [
      { key: "model", label: "模型", type: "select", options: ["占位 Pool", "ollama:qwen", "vllm:custom"], required: true },
      { key: "system", label: "系统提示词", type: "textarea", placeholder: "你是…" },
      { key: "temperature", label: "温度", type: "number" },
      { key: "autonomous", label: "自主工具 (ReAct)", type: "checkbox" },
    ],
    defaults: { model: "占位 Pool", system: "", temperature: 0.7, autonomous: false },
  },
  tool: {
    kind: "tool",
    label: "工具",
    accent: "border-l-blue-500",
    badge: "bg-blue-100 text-blue-700",
    desc: "绑定 MCP 工具",
    fields: [
      {
        key: "tool",
        label: "工具",
        type: "select",
        options: ["wiki_search", "parse_document", "render_doc", "memory_get", "external_api"],
        required: true,
      },
      { key: "args", label: "参数(JSON)", type: "textarea", placeholder: '{"q":"..."}' },
    ],
    defaults: { tool: "wiki_search", args: "{}" },
  },
  memory: {
    kind: "memory",
    label: "记忆",
    accent: "border-l-emerald-500",
    badge: "bg-emerald-100 text-emerald-700",
    desc: "注入画像 / 历史 / 语义",
    fields: [
      { key: "profile", label: "注入画像", type: "checkbox" },
      { key: "history", label: "注入历史", type: "checkbox" },
      { key: "semantic", label: "语义召回", type: "checkbox" },
    ],
    defaults: { profile: true, history: true, semantic: false },
  },
  branch: {
    kind: "branch",
    label: "分支",
    accent: "border-l-rose-500",
    badge: "bg-rose-100 text-rose-700",
    desc: "条件路由",
    fields: [{ key: "condition", label: "条件", type: "text", placeholder: "score > 0.8" }],
    defaults: { condition: "" },
  },
  approval: {
    kind: "approval",
    label: "人工审批",
    accent: "border-l-orange-500",
    badge: "bg-orange-100 text-orange-700",
    desc: "HITL：暂停等人工批准",
    fields: [
      { key: "title", label: "审批标题", type: "text", placeholder: "如：高危操作审批" },
      { key: "prompt", label: "审批说明", type: "textarea", placeholder: "向审批人说明待执行的操作…" },
    ],
    defaults: { title: "人工审批", prompt: "请审批是否继续执行后续步骤" },
  },
  map: {
    kind: "map",
    label: "并行 / Map",
    accent: "border-l-fuchsia-500",
    badge: "bg-fuchsia-100 text-fuchsia-700",
    desc: "fan-out（逐章节）",
    fields: [{ key: "splitBy", label: "拆分依据", type: "text", placeholder: "sections" }],
    defaults: { splitBy: "sections" },
  },
  aggregate: {
    kind: "aggregate",
    label: "汇聚",
    accent: "border-l-fuchsia-700",
    badge: "bg-fuchsia-100 text-fuchsia-800",
    desc: "reduce / 合并",
    fields: [{ key: "strategy", label: "合并策略", type: "select", options: ["拼接", "去重合并", "摘要"] }],
    defaults: { strategy: "拼接" },
  },
  render: {
    kind: "render",
    label: "渲染",
    accent: "border-l-cyan-600",
    badge: "bg-cyan-100 text-cyan-700",
    desc: "UniOffice 出 docx/pdf",
    fields: [
      { key: "format", label: "格式", type: "select", options: ["docx", "pdf"] },
      { key: "template", label: "模板", type: "text", placeholder: "默认" },
    ],
    defaults: { format: "docx", template: "默认" },
  },
  output: {
    kind: "output",
    label: "输出",
    accent: "border-l-gray-500",
    badge: "bg-gray-100 text-gray-700",
    desc: "展示 / 导出 / 落盘",
    fields: [{ key: "target", label: "目标", type: "select", options: ["屏幕", "本地文件"] }],
    defaults: { target: "屏幕" },
  },
};

export const NODE_ORDER = [
  "input",
  "retriever",
  "agent",
  "tool",
  "memory",
  "branch",
  "approval",
  "map",
  "aggregate",
  "render",
  "output",
];