const su = require('superagent')
const { prop, contains } = require('ramda')

const headers = {
  'Accept': 'application/json',
  'Content-Type': 'application/json',
}

const dbhost = process.env.COUCHDB_URL

const createDB = (dbname) =>
  su.put(`${dbhost}/${dbname}`)
  .set(headers)
  .then((result) => result.body)

module.exports = (dbname) =>
  su.head(`${dbhost}/${dbname}`)
  .then(
    (result) => result.status === 200,
    (error) => {
      if (error.status === 404) return false
      throw error
    }
  )
  .then((exists) => {
    if(exists) return { "ok": true }
    return createDB(dbname)
  })