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|
"""This cog provides error handling for King Arthur."""
from discord import Message
from discord.ext import commands
from discord.ext.commands import Cog
from arthur.bot import KingArthur
from arthur.utils import generate_error_message
class ErrorHandler(Cog):
"""Error handling for King Arthur."""
def __init__(self, bot: KingArthur) -> None:
self.bot = bot
async def _add_error_reaction(self, message: Message) -> None:
await message.add_reaction("\N{CROSS MARK}")
@Cog.listener()
async def on_command_error(self, ctx: commands.Context, error: commands.CommandError) -> None:
"""Handle exceptions raised during command processing."""
if isinstance(error, commands.CommandNotFound):
return
if isinstance(error, commands.MissingRequiredArgument | commands.BadArgument):
await self._add_error_reaction(ctx.message)
await ctx.send_help(ctx.command)
elif isinstance(
error,
commands.CheckFailure
| commands.NoPrivateMessage
| commands.CommandOnCooldown
| commands.DisabledCommand
| commands.DisabledCommand,
):
await self._add_error_reaction(ctx.message)
elif isinstance(error, commands.CommandInvokeError):
await self._add_error_reaction(ctx.message)
await ctx.send(
generate_error_message(
description=(
f"Command raised an error: `{error.original.__class__.__name__}:"
f" {error.original}`"
)
)
)
else:
await ctx.send(
generate_error_message(
description=(
f"Unknown exception occurred: `{error.__class__.__name__}: {error}`"
)
)
)
async def setup(bot: KingArthur) -> None:
"""Add cog to bot."""
await bot.add_cog(ErrorHandler(bot))
|
