require "gamefic/keywords"

module Gamefic

	module Describable
    attr_reader :name
		attr_accessor :synonyms, :indefinite_article
    attr_writer :definite_article
		def keywords
			Keywords.new "#{name} #{synonyms}"
		end
		def keywords=(value)
			@keywords = value
		end
    def indefinitely
      (proper_named? ? '' : "#{indefinite_article} ") + name
    end
    def definitely
      (proper_named? ? '' : "#{definite_article} ") + name
    end
    def definite_article
      @definite_article || "the"
    end
    def proper_named?
      (@proper_named == true)
    end
    def proper_named=(value)
      if value == true
        if @definite_article != nil
          @name = "#{@definite_article} #{@name}"
          @definite_article = nil
        end
      end
      @proper_named = value
    end
    def name=(value)
      # TODO: Split article from name
      words = value.split_words
      if ['a','an'].include?(words[0].downcase)
        @indefinite_article = words[0].downcase
        @definite_article = 'the'
        value = value[words[0].length+1..-1].strip
      else
        if words[0].downcase == 'the'
          @definite_article = 'the'
          value = value[4..-1].strip
        end
        # Try to guess the indefinite article
        if ['a','e','i','o','u'].include?(value[0,1].downcase)
          @indefinite_article = 'an'
        else
          @indefinite_article = 'a'
        end
      end
      @name = value
    end
		def description
			@description.to_s != '' ? @description : "Nothing special."
		end
		def description=(value)
			@description = value
		end
		def to_s
			indefinitely
		end
	end

  def self.a(entity)
    entity.indefinitely
  end
  def self.an(entity)
    entity.indefinitely
  end
  def self.the(entity)
    entity.definitely
  end
  def self.A(entity)
    entity.indefinitely.cap_first
  end
  def self.An(entity)
    entity.indefinitely.cap_first
  end
  def self.The(entity)
    entity.definitely.cap_first
  end

end