catks/verto

# frozen_string_literal: true

module Verto
  module DSL
    class Interpreter
      include DSL::Syntax

      # TODO: Wrap stacktrace
      Error = Class.new(Verto::ExitError)

      def evaluate(vertofile_content = nil, attributes: {}, &block)
        with_attributes(attributes) do
          vertofile_content ? instance_eval(vertofile_content) : instance_eval(&block)
        end
      rescue StandardError => e
        raise e if e.is_a?(Verto::ExitError)

        raise Error, e.message
      end

      private

      def with_attributes(attributes, &block)
        attributes.each do |key, value|
          instance_variable_set("@#{key}", value)
          define_singleton_method(key) { instance_variable_get("@#{key}") }
        end

        block.call

        attributes.each do |key, _value|
          instance_variable_set("@#{key}", nil)
          singleton_class.remove_method(key)
        end
      end
    end
  end
end