File

util/presence.lua @ 11465:19a88b61ab4e

util.datamapper: Factor out extraction of the XML part to use So extract_value() takes an XML tag and details about which part we're interested in and returns that. Factoring this out will help with array implementation since this will be common behavior.
author Kim Alvefur <zash@zash.se>
date Sat, 20 Mar 2021 19:02:18 +0100
parent 8885:d4f5d47f874d
line wrap: on
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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local t_insert = table.insert;

local function select_top_resources(user)
	local priority = 0;
	local recipients = {};
	for _, session in pairs(user.sessions) do -- find resource with greatest priority
		if session.presence then
			local p = session.priority;
			if p > priority then
				priority = p;
				recipients = {session};
			elseif p == priority then
				t_insert(recipients, session);
			end
		end
	end
	return recipients;
end
local function recalc_resource_map(user)
	if user then
		user.top_resources = select_top_resources(user);
		if #user.top_resources == 0 then user.top_resources = nil; end
	end
end

return {
	select_top_resources = select_top_resources;
	recalc_resource_map = recalc_resource_map;
}