module Cdao
  module DatabaseConnector
    class << self
      attr_writer :config, :config_path

      def database_config
        config["database"]
      end

      def config
        @config ||=
          if File.exist?(config_path)
            File.open(config_path) do |file|
              YAML.safe_load(ERB.new(file.read).result)[::Rails.env]
            end
          else
            {}
          end
      end

      def config_path
        @config_path ||= File.join(::Rails.root, "config", "database.cdao.yml")
      end

      def reset
        @config = nil
      end
    end
  end
end