# frozen_string_literal: true
require 'ipaddr'

# Provides a +request_attributes+ method for actions that handle
# +UserAttributable+ objects. It returns a hash that can be inserted into params
# or passed directly via assign_attributes/update_attributes.
module UserAttribution
  def request_attributes
    {
      ip:          _request_ip,
      user_agent:  request.env['HTTP_USER_AGENT'],
      referrer:    request.referer,
      user:        current_user
    }
  end

  # apply a /64 mask to an IPv6 address if we have one, otherwise just use the v4 address as-is.
  def _request_ip
    ip = IPAddr.new(request.remote_ip)
    ip.ipv6? ? ip.mask(64) : ip
  end
end