module.exports = io => {
  io.on('connection', socket => {
    console.log(`A socket connection to the server has been made: ${socket.id}`)
    socket.broadcast.emit('user connection', socket.id)

    socket.on('disconnect', () => {
      console.log(`${socket.id} has disconnected.`)
    })

    socket.on('message', message => {
      socket.broadcast.emit('message', message)
    })

    socket.on('typing', () => {
      socket.broadcast.emit('typing')
    })
  })
}