const STAGING_APP_INDICATOR = '-staging'
const PIPELINE_MIN_LENGTH = 2
const PIPELINE_MAX_LENGTH = 30 - STAGING_APP_INDICATOR.length
const ERR_PIPELINE_NAME_LENGTH = `Please choose a pipeline name between 2 and ${PIPELINE_MAX_LENGTH} characters long`
const ERR_REPO_FORMAT = 'Repository name must be in the format organization/repo'

const REPO_REGEX = /.+\/.+/

function nameAndRepo ({ name, repo }) {
  const errors = []
  const [nameIsValid, nameMsg] = pipelineName(name || '')
  const [repoIsValid, repoMsg] = repoName(repo || '')
  if (name && !nameIsValid) errors.push(nameMsg)
  if (repo && !repoIsValid) errors.push(repoMsg)
  return errors
}

function pipelineName (name) {
  const isValid = name.length >= PIPELINE_MIN_LENGTH &&
    name.length <= PIPELINE_MAX_LENGTH

  return isValid ? [isValid] : [isValid, ERR_PIPELINE_NAME_LENGTH]
}

function repoName (repo) {
  const isValid = !!repo.match(REPO_REGEX)
  return isValid ? [isValid] : [isValid, ERR_REPO_FORMAT]
}

module.exports = {
  nameAndRepo,
  pipelineName,
  repoName,
  STAGING_APP_INDICATOR
}