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# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you under
# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# 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 SearchableSnapshots
        module Actions
          # Clear the cache of searchable snapshots.
          # This functionality is Experimental and may be changed or removed
          # completely in a future release. Elastic will take a best effort approach
          # to fix any issues, but experimental features are not subject to the
          # support SLA of official GA features.
          #
          # @option arguments [List] :index A comma-separated list of index names
          # @option arguments [Boolean] :ignore_unavailable Whether specified concrete indices should be ignored when unavailable (missing or closed)
          # @option arguments [Boolean] :allow_no_indices Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)
          # @option arguments [String] :expand_wildcards Whether to expand wildcard expression to concrete indices that are open, closed or both. (options: open, closed, none, all)
          # @option arguments [Hash] :headers Custom HTTP headers
          #
          # @see https://www.elastic.co/guide/en/elasticsearch/reference/7.17/searchable-snapshots-apis.html
          #
          def clear_cache(arguments = {})
            headers = arguments.delete(:headers) || {}

            arguments = arguments.clone

            _index = arguments.delete(:index)

            method = Elasticsearch::API::HTTP_POST
            path   = if _index
                       "#{Elasticsearch::API::Utils.__listify(_index)}/_searchable_snapshots/cache/clear"
                     else
                       "_searchable_snapshots/cache/clear"
                     end
            params = Elasticsearch::API::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(:clear_cache, [
            :ignore_unavailable,
            :allow_no_indices,
            :expand_wildcards,
            :index
          ].freeze)
        end
      end
    end
  end
end
