/**
 * Choosing a repository folder.
 *
 * Wrapped so the rest of the app never imports the dialog plugin directly —
 * which also means the tests can stand in for it in one place.
 */

import { open } from "@tauri-apps/plugin-dialog";

/**
 * Ask for a repository folder.
 *
 * Resolves to `undefined` when the dialog is dismissed, which is an ordinary
 * outcome rather than an error. Any folder inside a repository will do: the
 * Rust side searches upwards the way git does.
 */
export async function chooseRepositoryFolder(): Promise<string | undefined> {
  const chosen = await open({
    directory: true,
    multiple: false,
    title: "Open repository",
  });

  // The plugin returns null on dismissal, and an array only when `multiple`
  // is set — which it is not.
  return typeof chosen === "string" ? chosen : undefined;
}