local secret = module:get_option_string("turn_external_secret");

local host = module:get_option_string("turn_external_host", module.host);

local user = module:get_option_string("turn_external_user");

local port = module:get_option_number("turn_external_port", 3478);

local ttl = module:get_option_number("turn_external_ttl", 86400);

if not secret then error("mod_" .. module.name .. " requires that 'turn_external_secret' be set") end

module:depends "external_services";

for _, type in ipairs({"stun"; "turn"}) do

	for _, transport in ipairs({"udp"; "tcp"}) do

		if services:contains(type .. "-" .. transport) then

			module:add_item("external_service", {

				type = type;

				transport = transport;

				host = host;

				port = port;

				username = type == "turn" and user or nil;

				secret = type == "turn" and secret or nil;

				ttl = type == "turn" and ttl or nil;

			})

		end

	end

end