-- 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_moderated(room)

	return room._data.moderated;

end

local function set_moderated(room, moderated)

	moderated = moderated and true or nil;

	if get_moderated(room) == moderated then return false; end

	room._data.moderated = moderated;

	return true;

end

module:hook("muc-disco#info", function(event)

	event.reply:tag("feature", {var = get_moderated(event.room) and "muc_moderated" or "muc_unmoderated"}):up();

end);

module:hook("muc-config-form", function(event)

	table.insert(event.form, {

		name = "muc#roomconfig_moderatedroom";

		type = "boolean";

		label = "Moderated (require permission to speak)";

		desc = "In moderated rooms occupants must be given permission to speak by a room moderator";

		value = get_moderated(event.room);

	});

end, 80-3);

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

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

		event.status_codes["104"] = true;

	end

end);

module:hook("muc-get-default-role", function(event)

	if event.affiliation == nil then

		if get_moderated(event.room) then

			-- XEP-0045:

			-- An implementation MAY grant voice by default to visitors in unmoderated rooms.

			return "visitor"

		end

	end

end, 1);

return {

	get = get_moderated;

	set = set_moderated;

};