import logger from '../utils/logger'
import dbtools from '../utils/dbtools'
import cookie from 'cookie'

import { testUser } from './auth.middleware'

interface Options {
  userDB: any
}

export default function SocketAuth(options: Options): any {
  const { userDB } = options

  return (socket, next) => {
    try {
      const cookies = cookie.parse(socket.handshake.headers.cookie || '')
      const sessionID = cookies.sessionID

      if (process.env.NS_NOUSER) {
        socket.user = testUser
        next()
        return
      }

      if (!sessionID) {
        next(new Error('Not authenticated, please log in'))
        return
      }

      const user = GetUserBySessionID(userDB, sessionID)

      if (!user) {
        next(new Error('Not authenticated, please log in'))
        return
      }
      socket.user = user
      next()
    } catch (e) {
      next(new Error('Authentication server error'))
      console.error('Authentication server error')
      console.error(e)
    }
  }
}

function GetUserBySessionID(db: any, sessionID: string) {
  logger.DebugLog(`Getting user from db`, 'auth', 2)

  const session = dbtools.Select(db, 'sessions', {
    id: sessionID,
  })[0]

  if (!session) {
    return
  }

  const user = dbtools.Select(db, 'users', {
    id: session.userID,
  })[0]

  if (user) {
    return user
  }
}