module Errbit
  module Cloudfuji
    class << self
      def enable_cloudfuji!
        load_observers!
        extend_user!
        extend_err!
        extend_app!
        disable_devise_for_cloudfuji_controllers!
      end

      def extend_user!
        puts "Extending the user model"
        User.class_eval do
          field                   :ido_id
          validates_presence_of   :ido_id
          validates_uniqueness_of :ido_id

          def cloudfuji_extra_attributes(extra_attributes)
            self.name  = "#{extra_attributes['first_name'].to_s} #{extra_attributes['last_name'].to_s}"
            self.email = extra_attributes["email"]
            self.admin = true
          end
        end
      end

      def extend_err!
        Err.class_eval do
          field                   :ido_id
          validates_presence_of   :ido_id
          validates_uniqueness_of :ido_id

          before_validation Proc.new { |e| e.ido_id ||= UUID.new.generate  }
        end
      end

      def extend_app!
        # Make CloudfujiTracker the default tracker
        AppsController.class_eval do
          def plug_params_with_cloudfuji_tracker(app)
            plug_params_without_cloudfuji_tracker(app)
            if app.issue_tracker.class == IssueTracker
              app.issue_tracker = CloudfujiTracker.new
            end
          end
          alias_method_chain :plug_params, :cloudfuji_tracker
        end
      end

      def load_observers!
        Dir[File.expand_path("../cloudfuji/event_observers/*.rb", __FILE__)].each { |file| require file }
      end

      # Temporary hack because all routes require authentication in
      # Errbit
      def disable_devise_for_cloudfuji_controllers!
        puts "Disabling devise auth protection on cloudfuji controllers"

        ::Cloudfuji::DataController.instance_eval { before_filter :authenticate_user!, :except => [:index]  }
        ::Cloudfuji::EnvsController.instance_eval { before_filter :authenticate_user!, :except => [:update] }
        ::Cloudfuji::MailController.instance_eval { before_filter :authenticate_user!, :except => [:index]  }

        puts "Devise checks disabled for Cloudfuji controllers"
      end
    end
  end
end

if Cloudfuji::Platform.on_cloudfuji?
  class CloudfujiRailtie < Rails::Railtie
    config.to_prepare do
      puts "Enabling Cloudfuji"
      Errbit::Cloudfuji.enable_cloudfuji!
      puts "Finished enabling Cloudfuji"
    end
  end
end