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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,
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# "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 information about model snapshots.
          #
          # @option arguments [String] :job_id The ID of the job to fetch
          # @option arguments [String] :snapshot_id The ID of the snapshot to fetch
          # @option arguments [Int] :from Skips a number of documents
          # @option arguments [Int] :size The default number of documents returned in queries as a string.
          # @option arguments [Date] :start The filter 'start' query parameter
          # @option arguments [Date] :end The filter 'end' query parameter
          # @option arguments [String] :sort Name of the field to sort on
          # @option arguments [Boolean] :desc True if the results should be sorted in descending order
          # @option arguments [Hash] :headers Custom HTTP headers
          # @option arguments [Hash] :body Model snapshot selection criteria
          #
          # @see https://www.elastic.co/guide/en/elasticsearch/reference/7.12/ml-get-snapshot.html
          #
          def get_model_snapshots(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)

            _snapshot_id = arguments.delete(:snapshot_id)

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

            path = if _job_id && _snapshot_id
                     "_ml/anomaly_detectors/#{Elasticsearch::API::Utils.__listify(_job_id)}/model_snapshots/#{Elasticsearch::API::Utils.__listify(_snapshot_id)}"
                   else
                     "_ml/anomaly_detectors/#{Elasticsearch::API::Utils.__listify(_job_id)}/model_snapshots"
                   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_model_snapshots, [
            :from,
            :size,
            :start,
            :end,
            :sort,
            :desc
          ].freeze)
        end
      end
    end
  end
end