fix help output for list/export

utils/converter.py

@@ -13,14 +13,23 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with Emote Manager. If not, see <https://www.gnu.org/licenses/>.
 
+import functools
+
 _emote_type_predicates = {
 	'': lambda _: True,  # allow usage as a "consume rest" converter
 	'all': lambda _: True,
 	'static': lambda e: not e.animated,
 	'animated': lambda e: e.animated}
 
-def emote_type_filter(argument):
-	try:
-		return _emote_type_predicates[argument.lower()]
-	except KeyError:
-		raise commands.BadArgument('Invalid emote type. Specify “static”, “animated”, “all”.')
+# this is kind of a hack to ensure that the last argument is always converted, even if the default is used.
+def emote_type_filter_default(command):
+	old_callback = command.callback
+
+	@functools.wraps(old_callback)
+	async def callback(self, ctx, *args):
+		image_type = args[-1]
+		image_type = _emote_type_predicates[image_type]
+		return await old_callback(self, ctx, *args[:-1], image_type)
+
+	command.callback = callback
+	return command