import type { ModelTool } from "../ports/model-port";

export const workspaceTools: readonly ModelTool[] = [
  {
    name: "list_directory",
    description:
      "列出当前会话工作区内某个目录的直接子项。路径必须是工作区相对路径。",
    parameters: {
      type: "object",
      properties: {
        path: {
          type: "string",
          description: "目录相对路径，根目录使用空字符串",
        },
      },
      required: ["path"],
      additionalProperties: false,
    },
  },
  {
    name: "search_files",
    description: "按文件名和 UTF-8 文本内容搜索当前会话工作区。",
    parameters: {
      type: "object",
      properties: { query: { type: "string" } },
      required: ["query"],
      additionalProperties: false,
    },
  },
  {
    name: "read_text_file",
    description: "读取当前会话工作区内不超过 2 MiB 的 UTF-8 文本文件。",
    parameters: {
      type: "object",
      properties: { path: { type: "string" } },
      required: ["path"],
      additionalProperties: false,
    },
  },
  {
    name: "create_text_file",
    description:
      "在当前会话工作区内创建新的 UTF-8 文本文件；文件已存在时失败。",
    parameters: {
      type: "object",
      properties: {
        path: { type: "string" },
        content: { type: "string" },
      },
      required: ["path", "content"],
      additionalProperties: false,
    },
  },
  {
    name: "apply_text_patch",
    description:
      "使用读取文件时得到的 SHA-256 哈希，对文本执行精确替换。默认每项旧文本必须只出现一次。",
    parameters: {
      type: "object",
      properties: {
        path: { type: "string" },
        expectedHash: { type: "string" },
        replacements: {
          type: "array",
          minItems: 1,
          maxItems: 50,
          items: {
            type: "object",
            properties: {
              oldText: { type: "string" },
              newText: { type: "string" },
              replaceAll: { type: "boolean" },
            },
            required: ["oldText", "newText"],
            additionalProperties: false,
          },
        },
      },
      required: ["path", "expectedHash", "replacements"],
      additionalProperties: false,
    },
  },
];

export function isWorkspaceTool(name: string): boolean {
  return workspaceTools.some((tool) => tool.name === name);
}