COPY Gemfile /opt/microservices/
RUN bundle install

COPY details.rb /opt/microservices/

ARG service_version
ENV SERVICE_VERSION ${service_version:-v1}
ARG enable_external_book_service
ENV ENABLE_EXTERNAL_BOOK_SERVICE ${enable_external_book_service:-false}

EXPOSE 9080

CMD ["ruby", "details.rb", "9080"]

    args = {
      service_version = "v1"
    }
    source = "details"
  },
  {
    name = "examples-bookinfo-details-v2"
    args = {
      service_version              = "v2"
      enable_external_book_service = true
    }
    source = "details"
  },

  // Reviews
  {
    name = "examples-bookinfo-reviews-v1"
    args = {
      service_version = "v1"
    }
    source = "reviews"
  },
  {

        res['Content-Type'] = 'application/json'
        res.status = 400
    end
end

# TODO: provide details on different books.
def get_book_details(id, headers)
    if ENV['ENABLE_EXTERNAL_BOOK_SERVICE'] === 'true' then
      # the ISBN of one of Comedy of Errors on the Amazon
      # that has Shakespeare as the single author
        isbn = '0486424618'