# 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.
#
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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
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# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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module OpenSearch
  module API
    module Actions
      # Allows to perform multiple index/update/delete operations in a single request.
      #
      # @option arguments [String] :index Default index for items which don't provide one
      # @option arguments [String] :wait_for_active_shards Sets the number of shard copies that must be active before proceeding with the bulk operation. Defaults to 1, meaning the primary shard only. Set to `all` for all shard copies, otherwise set to any non-negative value less than or equal to the total number of copies for the shard (number of replicas + 1)
      # @option arguments [String] :refresh If `true` then refresh the affected shards to make this operation visible to search, if `wait_for` then wait for a refresh to make this operation visible to search, if `false` (the default) then do nothing with refreshes. (options: true, false, wait_for)
      # @option arguments [String] :routing Specific routing value
      # @option arguments [Time] :timeout Explicit operation timeout
      # @option arguments [List] :_source True or false to return the _source field or not, or default list of fields to return, can be overridden on each sub-request
      # @option arguments [List] :_source_excludes Default list of fields to exclude from the returned _source field, can be overridden on each sub-request
      # @option arguments [List] :_source_includes Default list of fields to extract and return from the _source field, can be overridden on each sub-request
      # @option arguments [String] :pipeline The pipeline id to preprocess incoming documents with
      # @option arguments [Boolean] :require_alias Sets require_alias for all incoming documents. Defaults to unset (false)
      # @option arguments [Hash] :headers Custom HTTP headers
      # @option arguments [String|Array] :body The operation definition and data (action-data pairs), separated by newlines. Array of Strings, Header/Data pairs,
      # or the conveniency "combined" format can be passed, refer to OpenSearch::API::Utils.__bulkify documentation.
      #
      #
      def bulk(arguments = {})
        raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]

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

        arguments = arguments.clone

        _index = arguments.delete(:index)

        method = OpenSearch::API::HTTP_POST
        path   = if _index
                   "#{Utils.__listify(_index)}/_bulk"
                 else
                   '_bulk'
                 end
        params = Utils.__validate_and_extract_params arguments, ParamsRegistry.get(__method__)

        body = arguments[:body]
        payload = if body.is_a? Array
                    OpenSearch::API::Utils.__bulkify(body)
                  else
                    body
                  end

        headers.merge!('Content-Type' => 'application/x-ndjson')
        perform_request(method, path, params, payload, headers).body
      end

      # Register this action with its valid params when the module is loaded.
      #
      # @since 6.2.0
      ParamsRegistry.register(:bulk, %i[
        wait_for_active_shards
        refresh
        routing
        timeout
        _source
        _source_excludes
        _source_includes
        pipeline
        require_alias
      ].freeze)
    end
  end
end