import { CliTerseError } from '@alwaysai/alwayscli';
import delay = require('delay');
import { SshSpawner } from './spawner';

const TEN_SECONDS = 10 * 1000;
export const TIMED_OUT_CONNECTING_TO = 'Timed out connecting to';

export async function connectBySsh(props: { targetHostname: string }) {
  const { targetHostname } = props;
  const spawner = SshSpawner({ targetHostname });
  await Promise.race([
    spawner.run({ exe: 'echo' }),
    delay.reject(TEN_SECONDS, {
      value: new CliTerseError(`${TIMED_OUT_CONNECTING_TO} "${targetHostname}"`)
    })
  ]);
}