# frozen_string_literal: true

require "delegate"
require "blather"

class ProxiedJID < SimpleDelegator
	ESCAPED = /20|22|26|27|2f|3a|3c|3e|40|5c/.freeze

	def unproxied
		Blather::JID.new(
			node.gsub(/\\(#{ESCAPED})/) { |s|
				s[1..-1].to_i(16).chr
			}
		)
	end

	def self.proxy(jid, suffix=CONFIG[:upstream_domain])
		jid = Blather::JID.new(jid)
		ProxiedJID.new(Blather::JID.new(
			jid.stripped.to_s
				.gsub(/([ "&'\/:<>@]|\\(?=#{ESCAPED}))/) { |s|
					"\\#{s.ord.to_s(16)}"
				},
			suffix,
			jid.resource
		))
	end
end