#---------------------------
#  Feeds validator. It uses the W3C feed validator api:
#
#  Installation:
#      gem install feedvalidator
#
#  Use:
#      ruby validator.rb HOST URI
#
#  Expample:
#      ruby validator.rb 11870.com /feeds/calavera
#  
#---------------------------

require 'rubygems'
require 'feed_validator'
require 'net/http'

class FeedsValidator
	
	def messages(header, map)
		if map.length > 0
		puts "\n#{header} :"
		puts '--------------------------------'
		map.each do |information|
			puts "message: #{information[:text]}"
			puts "element: #{information[:element]}"
			puts "line: #{information[:line]}"
			puts "col: #{information[:col]}" if information[:col]
			puts '--------------------------------'
		end
		end
	end
	
def initialize
	@response = Net::HTTP.get_response ARGV[0], ARGV[1], 80

	v = W3C::FeedValidator.new
	v.validate_data @response.body.to_s
	puts v.to_s unless v.valid?
	
	unless v.valid
		puts "THE FEED IS INVALID\n"

		messages "ERRORS", v.errors
	else
		puts "THE FEED IS VALID\n"
	end
	
	messages "WARNINGS", v.warnings
	
	messages "INFORMATIONS", v.informations	
	
end

end

FeedsValidator.new