module FilePool

require 'digest/md5'

class Pool
	def initialize(pool_path)
		@pool_path = pool_path 
		Dir.mkdir @pool_path unless Dir.exist? @pool_path
	end

	def puts(row_data)
		md5 = Digest::MD5.hexdigest(row_data)
		file_path = File.join(@pool_path, md5) 
		File.open(file_path, 'w+').write(row_data) unless File.exist? file_path
		
		return md5
	end

	def delete(file_id)
		file_path = File.join(@pool_path, file_id)
		File.unlink file_path if File.exist? file_path
	end

	def exist?(file_id)
		File.exist? File.join(@pool_path, file_id) 
	end
end

end