import { spawn } from "node:child_process";

export type ExecutableProbe = (command: string, signal?: AbortSignal) => Promise<boolean>;

export const executableAvailable: ExecutableProbe = (command, signal) => new Promise((resolve, reject) => {
  if (signal?.aborted) return reject(signal.reason ?? new DOMException("Aborted", "AbortError"));
  const child = spawn(command, ["--version"], { shell: false, stdio: "ignore", signal });
  child.once("spawn", () => {
    child.kill();
    resolve(true);
  });
  child.once("error", (error: NodeJS.ErrnoException) => {
    if (error.code === "ENOENT") resolve(false);
    else reject(error);
  });
});