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# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
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module Elasticsearch
  module API
    module DataFrameTransformDeprecated
      module Actions
        # Retrieves usage information for transforms.
        # This functionality is in Beta and is subject to change. The design and
        # code is less mature than official GA features and is being provided
        # as-is with no warranties. Beta features are not subject to the support
        # SLA of official GA features.
        #
        # @option arguments [String] :transform_id The id of the transform for which to get stats. '_all' or '*' implies all transforms
        # @option arguments [Number] :from skips a number of transform stats, defaults to 0
        # @option arguments [Number] :size specifies a max number of transform stats to get, defaults to 100
        # @option arguments [Boolean] :allow_no_match Whether to ignore if a wildcard expression matches no transforms. (This includes `_all` string or when no transforms have been specified)
        # @option arguments [Hash] :headers Custom HTTP headers
        #
        # *Deprecation notice*:
        # [_data_frame/transforms/] is deprecated, use [_transform/] in the future.
        # Deprecated since version 7.5.0
        #
        #
        # @see https://www.elastic.co/guide/en/elasticsearch/reference/current/get-transform-stats.html
        #
        def get_transform_stats(arguments = {})
          raise ArgumentError, "Required argument 'transform_id' missing" unless arguments[:transform_id]

          headers = arguments.delete(:headers) || {}

          body = nil

          arguments = arguments.clone

          _transform_id = arguments.delete(:transform_id)

          method = Elasticsearch::API::HTTP_GET
          path   = "_data_frame/transforms/#{Utils.__listify(_transform_id)}/_stats"
          params = Utils.process_params(arguments)

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