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#
# Author:: John Keiser (<jkeiser@chef.io>)
# Copyright:: Copyright 2012-2016, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed 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.
#

require "chef/chef_fs/file_system/base_fs_dir"
require "chef/chef_fs/file_system/chef_server/rest_list_entry"
require "chef/chef_fs/file_system/exceptions"
require "chef/chef_fs/data_handler/node_data_handler"

class Chef
  module ChefFS
    module FileSystem
      module ChefServer
        class NodesDir < RestListDir
          # Identical to RestListDir.children, except supports environments
          def children
            begin
              @children ||= root.get_json(env_api_path).keys.sort.map do |key|
                make_child_entry(key, true)
              end
            rescue Timeout::Error => e
              raise Chef::ChefFS::FileSystem::OperationFailedError.new(:children, self, e, "Timeout retrieving children: #{e}")
            rescue Net::HTTPServerException => e
              if $!.response.code == "404"
                raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
              else
                raise Chef::ChefFS::FileSystem::OperationFailedError.new(:children, self, e, "HTTP error retrieving children: #{e}")
              end
            end
          end

          def env_api_path
            environment ? "environments/#{environment}/#{api_path}" : api_path
          end
        end
      end
    end
  end
end