gistfile1.txt

require 'unicode'

class Bottles

	class Verse

	end

	def verses(numBottlesFrom, numBottlesTo)
		result = ""
		for num in numBottlesFrom.downto(numBottlesTo)
			result = result + verse(num)
			if (num != numBottlesTo)
				result = result + "\n"
			end
		end
		result
	end

	def verse(numBottles)
		thisBottle = getBottles(numBottles)
		activeNumber = activeNumber(numBottles)

		nextBottle = getBottles(numBottles - 1)
		
		firstLine = "#{Unicode::capitalize(thisBottle)} of beer on the wall, #{thisBottle} of beer.\n"

		if (numBottles > 0)
			firstLine + "Take #{activeNumber} down and pass it around, #{nextBottle} of beer on the wall.\n"
		else
			firstLine + "Go to the store and buy some more, 99 bottles of beer on the wall.\n"
		end
	end

	private

	def getBottles(n)
		if n == 6
			"1 six-pack"
		else
			"#{getNumber(n)} #{getBottle(n)}"
		end
	end

	def getNumber(n)
		if n == 0
			return "no more"
		else
			return n
		end
	end

	def getBottle(n)
		if n == 1  
			return "bottle" 
		else
			return "bottles"
		end
	end

	def activeNumber(n) 
		if (n == 1)
			return "it"
		else
			return "one"
		end
	end 

	public
	def song
		verses(99,0)
	end
end