class Doorkeeper::OAuth::Client

def self.authenticate(credentials, method = Application.method(:by_uid_and_secret))
  return if credentials.blank?
  if (application = method.call(credentials.uid, credentials.secret))
    new(application)
  end
end

def self.find(uid, method = Application.method(:by_uid))
  if (application = method.call(uid))
    new(application)
  end
end

def initialize(application)
  @application = application
end