require 'faraday'

module Ably
  module Rest
    module Middleware
      # HTTP exceptions raised due to a status code error on a 3rd party site
      # Used by auth calls
      class ExternalExceptions < Faraday::Response::Middleware
        def call(env)
          @app.call(env).on_complete do
            if env[:status] >= 400
              error_status_code = env[:status]
              message = "Error #{error_status_code}: #{(env[:body] || '')[0...200]}"

              if error_status_code >= 500
                raise Ably::Exceptions::ServerError, message
              else
                raise Ably::Exceptions::InvalidRequest, message
              end
            end
          end
        end
      end
    end
  end
end