# Licensed to Elasticsearch B.V under one or more agreements.
# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
# See the LICENSE file in the project root for more information

module Elasticsearch
  module API
    module Nodes
      module Actions
        # Returns low-level information about REST actions usage on nodes.
        #
        # @option arguments [List] :node_id A comma-separated list of node IDs or names to limit the returned information; use `_local` to return information from the node you're connecting to, leave empty to get information from all nodes
        # @option arguments [List] :metric Limit the information returned to the specified metrics
        #   (options: _all,rest_actions)

        # @option arguments [Time] :timeout Explicit operation timeout
        # @option arguments [Hash] :headers Custom HTTP headers
        #
        # @see https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-nodes-usage.html
        #
        def usage(arguments = {})
          headers = arguments.delete(:headers) || {}

          arguments = arguments.clone

          _node_id = arguments.delete(:node_id)

          _metric = arguments.delete(:metric)

          method = Elasticsearch::API::HTTP_GET
          path   = if _node_id && _metric
                     "_nodes/#{Utils.__listify(_node_id)}/usage/#{Utils.__listify(_metric)}"
                   elsif _node_id
                     "_nodes/#{Utils.__listify(_node_id)}/usage"
                   elsif _metric
                     "_nodes/usage/#{Utils.__listify(_metric)}"
                   else
                     "_nodes/usage"
      end
          params = Utils.__validate_and_extract_params arguments, ParamsRegistry.get(__method__)

          body = nil
          perform_request(method, path, params, body, headers).body
        end

        # Register this action with its valid params when the module is loaded.
        #
        # @since 6.2.0
        ParamsRegistry.register(:usage, [
          :timeout
        ].freeze)
end
      end
  end
end