module Mountapi
  module Route
    # The handler is called if the route match
    # Handler data should be any string representation of callable
    class Handler
      def initialize(callable)
        self.callable = callable
      end

      def callable=(callable)
        @callable ||= if callable.respond_to? :call
                        callable
                      elsif callable.kind_of?(String)
                        eval(callable)
                      else
                        raise ArgumentError, "invalid callable: #{callable}"
                      end
      end

      def raw_value
        @callable
      end

      def call(*params)
        @callable.call(*params)
      end
    end
  end
end