module Zelda
  # Abstract base class to provide common functionality of Zelda importer classes.
  # including method_missing magic to turn an @attributes hash into getters.
  class Base
    def initialize(attributes={})
      @attributes = {}
      
      attributes.each do |key, value|
        @attributes[key.to_sym] = value
      end
    end
    
    attr_reader :attributes

    # Try both string keys and symbol keys in that order.
    def method_missing(method, *args, &block)
      if @attributes[method]
        return @attributes[method]
      elsif @attributes.key?(method)
        return nil
      else
        super(method, *args, &block)
      end
    end
  end
end