-- mod_support_contact.lua

--

-- Config options:

--   support_contact = "support@hostname"; -- a JID

--   support_contact_nick = "Support!"; -- roster nick

--   support_contact_group = "Users being supported!"; -- the roster group in the support contact's roster

local host = module:get_host();

local support_contact = module:get_option("support_contact") or "support@"..host;

local support_contact_nick = module:get_option("support_contact_nick") or "Support";

local support_contact_group = module:get_option("support_contact_group") or "Users";

if not(support_contact and support_contact_nick) then return; end

local rostermanager = require "core.rostermanager";

local datamanager = require "util.datamanager";

local jid_split = require "util.jid".split;

local st = require "util.stanza";

module:hook("user-registered", function(event)

	module:log("debug", "Adding support contact");

	local groups = support_contact_group and {[support_contact_group] = true;} or {};

	local node, host = event.username, event.host;

	local jid = node and (node..'@'..host) or host;

	local roster;

	roster = rostermanager.load_roster(node, host);

	if hosts[host] then

		roster[support_contact] = {subscription = "both", name = support_contact_nick, groups = {}};

	else

		roster[support_contact] = {subscription = "from", ask = "subscribe", name = support_contact_nick, groups = {}};

	end

	rostermanager.save_roster(node, host, roster);

	node, host = jid_split(support_contact);

	if hosts[host] then

		roster = rostermanager.load_roster(node, host);

		roster[jid] = {subscription = "both", groups = groups};

		rostermanager.save_roster(node, host, roster);

		rostermanager.roster_push(node, host, jid);

	else

		core_post_stanza(hosts[event.host], st.presence({from=jid, to=support_contact, type="subscribe"}));

	end

end);