class NetworkDCLIParser
	def self.pack_args (argv : Array(String))
		last_flag = nil : String?

		argv.chunks do |x|
			if x[0..1] == "--"
				last_flag = x
			end

			last_flag
		end
	end

	def self.parse_rules (argv : Array(String), rules : RuleSet, redirections : RedirectionSet)
		args = NetworkDCLIParser.pack_args argv

		args.each do |flag, parameters|
			# puts "flag: #{flag}, params: #{parameters.join(' ')}"
			if flag == "--allow" || flag == "--deny"
				parameters[3] # will crash if non-existant

				rules << Rule.from_args parameters
			elsif flag == "--redirect"
				if parameters.size == 3
					redirections << Redirection.new parameters[1], parameters[2]
				elsif parameters.size == 5
					raise "--redirect with 4 parameters not implemented, yet"
				else
					raise "--redirect <service> <newservice> [<origin-url> <dest-url>]"
				end
			else
				raise "oh no"
			end
		end
	end
end