'use strict'

const cli = require('heroku-cli-util')
const co = require('co')

function * run (context, heroku) {
  const host = require('../../lib/host')
  const util = require('../../lib/util')
  const fetcher = require('../../lib/fetcher')(heroku)
  const { app, args } = context

  const db = yield fetcher.addon(app, args.database)

  if (util.starterPlan(db)) throw new Error('This operation is not supported by Hobby tier databases.')
  if (util.legacyPlan(db)) throw new Error('This operation is not supported by Legacy-tier databases.')

  let settings = yield heroku.get(`/postgres/v0/databases/${db.id}/config`, { host: host(db) })
  cli.styledHeader(db.name)
  let remapped = Object.keys(settings).reduce((s, key) => {
    s[key.replace(/_/g, '-')] = settings[key]['value']
    return s
  }, {})
  cli.styledObject(remapped)
}

module.exports = {
  topic: 'pg',
  command: 'settings',
  description: 'show your current database settings',
  needsApp: true,
  needsAuth: true,
  args: [{ name: 'database', optional: true }],
  run: cli.command({ preauth: true }, co.wrap(run))
}