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EmoteManager/utils/converter.py

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2020-05-12 23:55:08 +00:00
# © 20182020 io mintz <io@mintz.cc>
#
# Emote Manager is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# Emote Manager is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# 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/>.
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import functools
from discord.ext.commands import BadArgument
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_emote_type_predicates = {
'all': lambda _: True,
'static': lambda e: not e.animated,
'animated': lambda e: e.animated}
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# 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]
try:
image_type = _emote_type_predicates[image_type]
except KeyError:
raise BadArgument(f'Invalid emote type. Specify one of "all", "static", or "animated".')
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return await old_callback(self, ctx, *args[:-1], image_type)
command.callback = callback
return command