/**
 * Exports the runtime environment
 * Uses the `NODE_ENV` environment variable
 */

import * as joi from 'joi'

const schema = joi
  .object({
    // runtime environment. Valid values are: production, development, test
    NODE_ENV: joi.string().valid('production', 'development', 'test').default('production'),
  })
  .unknown()
  .required()

export default function getConfig() {
  const { value: envVars, error } = schema.validate(process.env, { abortEarly: false })
  if (error) {
    // don't expose environment variables in stack traces / logs
    delete error._original
    throw error
  }

  return {
    nodeEnv: envVars.NODE_ENV as string,
  }
}