import * as plugins from './npmci.plugins'

let sshRegex = /^(.*)\|(.*)\|(.*)/
let sshInstance: plugins.smartssh.SshInstance

/**
 * checks if not undefined
 */
let notUndefined = (stringArg: string) => {
  return (stringArg && stringArg !== 'undefined' && stringArg !== '##')
}

/**
 * checks for ENV vars in form of NPMCI_SSHKEY_* and deploys any found ones
 */
export let ssh = async () => {
  sshInstance = new plugins.smartssh.SshInstance() // init ssh instance
  plugins.smartparam.forEachMinimatch(process.env, 'NPMCI_SSHKEY_*', evaluateSshEnv)
  if (!process.env.NPMTS_TEST) {
    sshInstance.writeToDisk()
  } else {
    plugins.beautylog.log('In test mode, so not storing SSH keys to disk!')
  };
}

/**
 * gets called for each found SSH ENV Var and deploys it 
 */
let evaluateSshEnv = async (sshkeyEnvVarArg) => {
  let resultArray = sshRegex.exec(sshkeyEnvVarArg)
  let sshKey = new plugins.smartssh.SshKey()
  plugins.beautylog.info('Found SSH identity for ' + resultArray[1])
  if (notUndefined(resultArray[1])) {
    plugins.beautylog.log('---> host defined!')
    sshKey.host = resultArray[1]
  }
  if (notUndefined(resultArray[2])) {
    plugins.beautylog.log('---> privKey defined!')
    sshKey.privKeyBase64 = resultArray[2]
  };
  if (notUndefined(resultArray[3])) {
    '---> pubKey defined!'
    sshKey.pubKeyBase64 = resultArray[3]
  };

  sshInstance.addKey(sshKey)
  return
}