import fs from "fs";
import { RojoTool, RojoToolContext } from "./RojoTool";
import { resolveProjectPath } from "../../storage";

export class ListFilesTool extends RojoTool
{
  readonly Definition =
  {
    type: "function",
    function:
    {
      name: "list_files",
      description: "List the files and subdirectories inside a directory.",
      parameters:
      {
        type: "object",
        properties:
        {
          path: { type: "string", description: "Path relative to the project root." },
        },
        required: [ "path" ],
      },
    },
  };

  async execute( args: Record<string, unknown>, ctx: RojoToolContext ): Promise<unknown>
  {
    const full = resolveProjectPath( ctx.projectId, args.path as string );

    if ( !full ) return { error: "Invalid path" };
    if ( !fs.existsSync( full ) ) return { error: "Directory does not exist" };

    const entries = fs.readdirSync( full, { withFileTypes: true } );

    return entries.map( e => ( { name: e.name, type: e.isDirectory() ? "directory" : "file" } ) );
  }
}