module Fiona7
  module Middleware
    class ServerDetectionMiddleware
      class << self
        attr_accessor :server_detected
        attr_accessor :server_name, :server_port

        def server_detected?
          !!server_detected
        end
      end

      self.server_detected = false

      def initialize(app)
        @app = app
      end

      def call(env)
        self.class.server_detected = true
        self.class.server_name = env['SERVER_NAME']
        self.class.server_port = (env['SERVER_PORT'].presence || 80).to_i
        @app.call(env)
      end
    end
  end
end