require "ffi_yajl" unless defined?(FFI_Yajl)
require_relative "rest_object_endpoint"
require_relative "../chef_data/data_normalizer"

module ChefZero
  module Endpoints
    # /nodes
    class NodesEndpoint < RestListEndpoint

      def post(request)
        # /nodes validation
        if request.rest_path.last == "nodes"
          data = parse_json(request.body)

          if data.key?("policy_name") && policy_name_invalid?(data["policy_name"])
            return error(400, "Field 'policy_name' invalid", pretty: false)
          end

          if data.key?("policy_group") && policy_name_invalid?(data["policy_group"])
            return error(400, "Field 'policy_group' invalid", pretty: false)
          end
        end

        super(request)
      end

      def populate_defaults(request, response_json)
        node = FFI_Yajl::Parser.parse(response_json)
        node = ChefData::DataNormalizer.normalize_node(node, request.rest_path[3])
        FFI_Yajl::Encoder.encode(node, pretty: true)
      end
    end
  end
end
