// Test support: the current user's IDs and a fresh temporary directory, plus
// the source helpers that the repository-level tests in tests/ need. Those
// tests sit outside src/ and reach it only through the `#testing` alias.
import { mkdtemp } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import process from "node:process";

export function currentUid(): number {
  return process.getuid?.() ?? -1;
}

export function currentGid(): number {
  return process.getgid?.() ?? -1;
}

// The isolation tests switch UIDs, which only root may do.
export const IS_ROOT: boolean = currentUid() === 0;

// Symlinks and POSIX modes, as these tests use them, need a Unix host.
export const IS_WINDOWS: boolean = process.platform === "win32";

export function makeTempDir(): Promise<string> {
  return mkdtemp(join(tmpdir(), "bot-agents-test-"));
}

export { output } from "./command.ts";
export { isNotFound } from "./errors.ts";
export { isMapping } from "./json.ts";
export type { JsonObject } from "./json.ts";