module ::RailsConnector
  def self.load_platform_gem_if_present(name) # :nodoc:
    if Gem.loaded_specs["infopark_#{name}_connector"]
      gem_name = "infopark_#{name}_connector"

      # ensure the other connector is present in exactly the same version
      gem gem_name, Gem.loaded_specs["infopark_rails_connector"].version

      require gem_name

      @platform = name
    end
  end

  # return either :fiona or :cloud depending on the app's configuration.
  def self.platform
    @platform
  end
end

RailsConnector::load_platform_gem_if_present(:cloud)
RailsConnector::load_platform_gem_if_present(:fiona)

unless RailsConnector::platform
  raise "The infopark_rails_connector gem requires "\
    "either the infopark_cloud_connector gem (for use with Infopark Cloud Express) or "\
    "the infopark_fiona_connector gem (for use with Infopark CMS Fiona). "\
    "Add either gem to your Gemfile."
end

require "rails_connector/engine" if defined?(Rails)