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# the Apache License, Version 2.0 (the "License"); you may
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# You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

module Elasticsearch
  module XPack
    module API
      module MachineLearning
        module Actions
          # Retrieves anomaly detection job results for one or more categories.
          #
          # @option arguments [String] :job_id The name of the job
          # @option arguments [Long] :category_id The identifier of the category definition of interest
          # @option arguments [Integer] :from skips a number of categories
          # @option arguments [Integer] :size specifies a max number of categories to get
          # @option arguments [String] :partition_field_value Specifies the partition to retrieve categories for. This is optional, and should never be used for jobs where per-partition categorization is disabled.
          # @option arguments [Hash] :headers Custom HTTP headers
          # @option arguments [Hash] :body Category selection details if not provided in URI
          #
          # @see https://www.elastic.co/guide/en/elasticsearch/reference/7.16/ml-get-category.html
          #
          def get_categories(arguments = {})
            raise ArgumentError, "Required argument 'job_id' missing" unless arguments[:job_id]

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

            arguments = arguments.clone

            _job_id = arguments.delete(:job_id)

            _category_id = arguments.delete(:category_id)

            method = if arguments[:body]
                       Elasticsearch::API::HTTP_POST
                     else
                       Elasticsearch::API::HTTP_GET
                     end

            path = if _job_id && _category_id
                     "_ml/anomaly_detectors/#{Elasticsearch::API::Utils.__listify(_job_id)}/results/categories/#{Elasticsearch::API::Utils.__listify(_category_id)}"
                   else
                     "_ml/anomaly_detectors/#{Elasticsearch::API::Utils.__listify(_job_id)}/results/categories"
                   end
            params = Elasticsearch::API::Utils.__validate_and_extract_params arguments, ParamsRegistry.get(__method__)

            body = arguments[:body]
            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(:get_categories, [
            :from,
            :size,
            :partition_field_value
          ].freeze)
        end
      end
    end
  end
end