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# 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
# specific language governing permissions and limitations
# under the License.

module Elasticsearch
  module API
    module Tasks
      module Actions

        # Cancel a specific task
        #
        # @option arguments [String] :task_id Cancel the task with specified task id (node_id:task_number)
        # @option arguments [List] :nodes A comma-separated list of node IDs or names to limit the returned information; use `_local` to return information from the node you're connecting to, leave empty to get information from all nodes
        # @option arguments [List] :actions A comma-separated list of actions that should be cancelled. Leave empty to cancel all.
        # @option arguments [String] :parent_task_id Cancel tasks with specified parent task id (node_id:task_number). Set to -1 to cancel all.
        #
        # @see http://www.elastic.co/guide/en/elasticsearch/reference/master/tasks-cancel.html
        #
        def cancel(arguments={})
          arguments = arguments.clone
          task_id = arguments.delete(:task_id)

          method = 'POST'
          path   = Utils.__pathify( '_tasks', Utils.__escape(task_id), '_cancel' )
          params = Utils.__validate_and_extract_params arguments, ParamsRegistry.get(__method__)
          body   = nil

          perform_request(method, path, params, body).body
        end

        # Register this action with its valid params when the module is loaded.
        #
        # @since 6.1.1
        ParamsRegistry.register(:cancel, [
            :nodes,
            :actions,
            :parent_task_id ].freeze)
      end
    end
  end
end
