#
# Copyright (C) 2013 Conjur Inc
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
module Conjur
  module HasAttributes
    def to_json(options = {})
      attributes
    end

    def attributes=(a); @attributes = a; end
    def attributes
      return @attributes if @attributes
      fetch
    end
    
    def save
      self.put(attributes.to_json)
    end
    
    # Reload the attributes. This action can be used to guarantee a current view of the entity in the case
    # that it has been modified by an update method or by an external party.
    def refresh
      fetch
    end
    
    protected
    
    def invalidate(&block)
      yield
    ensure
      @attributes = nil
    end
    
    def fetch
      @attributes = JSON.parse(get.body)
    end
  end
end