diakonos/rss/converters.py
2024-01-17 00:20:44 -05:00

71 lines
2.0 KiB
Python

# Copyright 2017-present Michael Hall
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import annotations
from typing import NamedTuple, Optional
import discord
from redbot.core import commands
def _tristate(arg: str) -> Optional[bool]:
if arg.lower() in ("true", "yes"):
return True
if arg.lower() in ("false", "no"):
return False
if arg.lower() in ("none", "default"):
return None
raise commands.BadArgument(
f'"{arg}" is not a valid setting.'
' Valid settings are "true" or "false", or "default" to '
"remove the setting"
)
class TriState:
def __init__(self, state):
self.state = state
@classmethod
async def convert(cls, ctx, arg):
return cls(_tristate(arg))
_role_converter = commands.RoleConverter()
class NonEveryoneRole(discord.Role):
@classmethod
async def convert(cls, ctx: commands.Context, arg: str) -> discord.Role:
role: discord.Role = await _role_converter.convert(ctx, arg)
if role.is_default():
raise commands.BadArgument("You can't set this for the everyone role")
return role
class FieldAndTerm(NamedTuple):
field: str
term: str
@classmethod
async def convert(cls, ctx: commands.Context, arg: str) -> FieldAndTerm:
try:
field, term = arg.casefold().split(maxsplit=1)
except ValueError:
raise commands.BadArgument("Must provide a field and a term to match")
return cls(field, term)