-- Prosody IM

-- Copyright (C) 2008-2010 Matthew Wild

-- Copyright (C) 2008-2010 Waqas Hussain

-- Copyright (C) 2014 Daurnimator

--

-- This project is MIT/X11 licensed. Please see the

-- COPYING file in the source package for more information.

--

local function get_language(room)

	return room._data.language;

end

local function set_language(room, language)

	if language == "" then language = nil; end

	if get_language(room) == language then return false; end

	room._data.language = language;

	return true;

end

local function add_disco_form(event)

	table.insert(event.form, {

		name = "muc#roominfo_lang";

		value = "";

	});

	event.formdata["muc#roominfo_lang"] = get_language(event.room);

end

local function add_form_option(event)

	table.insert(event.form, {

		name = "muc#roomconfig_lang";

		label = "Language tag for room (e.g. 'en', 'de', 'fr' etc.)";

		type = "text-single";

		desc = "Indicate the primary language spoken in this room";

		datatype = "xs:language";

		value = get_language(event.room) or "";

	});

end

module:hook("muc-disco#info", add_disco_form);

module:hook("muc-config-form", add_form_option, 100-3);

module:hook("muc-config-submitted/muc#roomconfig_lang", function(event)

	if set_language(event.room, event.value) then

		event.status_codes["104"] = true;

	end

end);

return {

	get = get_language;

	set = set_language;

};