module Luruju

  module JudeApi

    class JudeBase

      include DynamicMethod

      protected
      def dyna_01_select_xxxs_by_yyy method, *args
        raise IsNotMyRole unless /^(find_all|select)_(.+?)_by_(.+?)$/ =~ method.to_s
        a_getter, attr, param = $2, $3, args[0]
        raise IsNotMyRole unless self.class.method_defined?(a_getter)
        ope = param.instance_of?(Regexp) ? "=~" : "=="
        instance_eval "#{a_getter}.select{|i|i.#{attr} #{ope} param}"
      end

      def dyna_02_find_xxx_by_yyy method, *args
        raise IsNotMyRole unless /^find_(.+?)_by_(.+?)$/ =~ method.to_s
        clazz, attr, param = $1, $2, args[0]
        a_getter = clazz.pluralize
        ope = param.instance_of?(Regexp) ? "=~" : "=="
        instance_eval "#{a_getter}.find{|i|i.#{attr} #{ope} param}"
      end
      
      def dyna_is_kind_of? method, *args
        raise IsNotMyRole unless /^kind_of_([^?]+?)\?$/ =~ method.to_s
	c = "JudeApi::Jude#{$1.classify}Methods"
	c = 'JudeApi::JudeClassMethods' if c == 'JudeApi::JudeClasMethods'
        return self.kind_of?(eval(c)) rescue false
      end

      def dyna_owned_elements method, *args
        raise IsNotMyRole unless self.class.method_defined?(:owned_elements)
        raise IsNotMyRole if method.to_s.singularize == method.to_s
        api_name = "Jude" + method.to_s.classify
        raise IsNotMyRole unless JudeApi.constants.include?(api_name)
        owned_elements.select{|p| p.instance_of?(JudeApi.module_eval(api_name))}
      end
      
      def dyna_first_owned_element method, *args
        raise IsNotMyRole unless self.class.method_defined?(:owned_elements)
        raise IsNotMyRole if method.to_s.pluralize == method.to_s
        send(method.to_s.pluralize.to_sym, *args)[0]
      end
      
      def dyna_search method, *args, &block
	raise IsNotMyRole unless /^search_(.+?)$/ =~ method.to_s
	JudeBase.search search{|x|x.send("kind_of_#{$1.singularize}?")}, *args, &block
      end
      
    end
  end
end