import error from '../../error'
import model from '../../model'

module.exports = async (req, res, client, scope, user, redirectUri, createAllowFuture) => {
  let accessTokenValue = null

  if (createAllowFuture) {
    if (!req.body || (typeof req.body['decision']) === 'undefined') {
      throw new error.InvalidRequest('No decision parameter passed')
    } else if (req.body['decision'] === 0) {
      throw new error.AccessDenied('User denied access to the resource')
    } else {
      console.debug('Decision check passed')
    }

    await model.user.allowClient(user.id, client.id, scope)
  }

  try {
    accessTokenValue = await req.oauth2.model.accessToken.create(req.oauth2.model.user.getId(user),
      req.oauth2.model.client.getId(client), scope, req.oauth2.model.accessToken.ttl)
  } catch (err) {
    throw new error.ServerError('Failed to call accessToken.create function')
  }

  return accessTokenValue
}