const logger = require('logger-sharelatex')
const util = require('util')
const { User } = require('../../models/User')
const { addAffiliation } = require('../Institutions/InstitutionsAPI')

async function createNewUser(attributes, options = {}) {
  let user = new User()

  if (attributes.first_name == null || attributes.first_name === '') {
    attributes.first_name = attributes.email.split('@')[0]
  }

  Object.assign(user, attributes)

  user.ace.syntaxValidation = true
  if (user.featureSwitches != null) {
    user.featureSwitches.pdfng = true
  }

  const reversedHostname = user.email
    .split('@')[1]
    .split('')
    .reverse()
    .join('')

  user.emails = [
    {
      email: user.email,
      createdAt: new Date(),
      reversedHostname
    }
  ]

  user = await user.save()

  if (!options.skip_affiliation) {
    // There is no guarantee this will complete so we must not rely on it
    addAffiliation(user._id, user.email, err => {
      if (err) {
        logger.error(
          { userId: user._id, email: user.email },
          "couldn't add affiliation for user on create"
        )
      }
    })
  }

  return user
}

const UserCreator = {
  createNewUser: util.callbackify(createNewUser),
  promises: {
    createNewUser: createNewUser
  }
}

module.exports = UserCreator