# SPDX-License-Identifier: Apache-2.0
#
# The OpenSearch Contributors require contributions made to
# this file be licensed under the Apache-2.0 license or a
# compatible open source license.
#
# Modifications Copyright OpenSearch Contributors. See
# GitHub history for details.
#
# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# 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
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# under the License.

module OpenSearch
  module API
    module Actions
      # Returns information about the indices and shards that a search request would be executed against.
      #
      # @option arguments [List] :index A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
      # @option arguments [String] :preference Specify the node or shard the operation should be performed on (default: random)
      # @option arguments [String] :routing Specific routing value
      # @option arguments [Boolean] :local Return local information, do not retrieve the state from cluster_manager node (default: false)
      # @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, hidden, none, all)
      # @option arguments [Hash] :headers Custom HTTP headers
      #
      #
      def search_shards(arguments = {})
        headers = arguments.delete(:headers) || {}

        arguments = arguments.clone

        _index = arguments.delete(:index)

        method = OpenSearch::API::HTTP_GET
        path   = if _index
                   "#{Utils.__listify(_index)}/_search_shards"
                 else
                   '_search_shards'
                 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(:search_shards, %i[
        preference
        routing
        local
        ignore_unavailable
        allow_no_indices
        expand_wildcards
      ].freeze)
    end
  end
end