#
# 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_relative "rest_list_dir"
require_relative "data_bag_entry"
require_relative "../exceptions"
require_relative "../../data_handler/data_bag_item_data_handler"

class Chef
  module ChefFS
    module FileSystem
      module ChefServer
        class DataBagDir < RestListDir
          def initialize(name, parent, exists = nil)
            super(name, parent, nil, Chef::ChefFS::DataHandler::DataBagItemDataHandler.new)
            @exists = nil
          end

          def dir?
            exists?
          end

          def read
            # This will only be called if dir? is false, which means exists? is false.
            raise Chef::ChefFS::FileSystem::NotFoundError.new(self)
          end

          def exists?
            if @exists.nil?
              @exists = parent.children.any? { |child| child.name == name }
            end
            @exists
          end

          def delete(recurse)
            unless recurse
              raise NotFoundError.new(self) unless exists?

              raise MustDeleteRecursivelyError.new(self, "#{path_for_printing} must be deleted recursively")
            end
            begin
              rest.delete(api_path)
            rescue Timeout::Error => e
              raise Chef::ChefFS::FileSystem::OperationFailedError.new(:delete, self, e, "Timeout deleting: #{e}")
            rescue Net::HTTPClientException => e
              if e.response.code == "404"
                raise Chef::ChefFS::FileSystem::NotFoundError.new(self, e)
              else
                raise Chef::ChefFS::FileSystem::OperationFailedError.new(:delete, self, e, "HTTP error deleting: #{e}")
              end
            end
          end

          def make_child_entry(name, exists = nil)
            @children.find { |child| child.name == name } if @children
            DataBagEntry.new(name, self, exists)
          end
        end
      end
    end
  end
end
