#
# Author:: John Keiser (<jkeiser@chef.io>)
# Copyright:: Copyright 2013-2016, 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/acl_entry"
require "chef/chef_fs/file_system/operation_not_allowed_error"

class Chef
  module ChefFS
    module FileSystem
      module ChefServer
        class AclDir < BaseFSDir
          def api_path
            parent.parent.child(name).api_path
          end

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

          def can_have_child?(name, is_dir)
            name =~ /\.json$/ && !is_dir
          end

          def children
            if @children.nil?
              # Grab the ACTUAL children (/nodes, /containers, etc.) and get their names
              names = parent.parent.child(name).children.map { |child| child.dir? ? "#{child.name}.json" : child.name }
              @children = names.map { |name| make_child_entry(name, true) }
            end
            @children
          end

          def create_child(name, file_contents)
            raise OperationNotAllowedError.new(:create_child, self, nil, "ACLs can only be updated, and can only be created when the corresponding object is created.")
          end

          def data_handler
            parent.data_handler
          end

          def rest
            parent.rest
          end
        end
      end
    end
  end
end