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import logging
import re
import discord
from discord.ext.commands import Cog
from bot.bot import Bot
from bot.constants import Month
from bot.utils.decorators import in_month
log = logging.getLogger(__name__)
SPOOKY_TRIGGERS = {
"spooky": (r"\bspo{2,}[k|p][i|y](er|est)?\b", "\U0001F47B"),
"skeleton": (r"\bskeleton\b", "\U0001F480"),
"doot": (r"\bdo{2,}t\b", "\U0001F480"),
"pumpkin": (r"\bpumpkin\b", "\U0001F383"),
"halloween": (r"\bhalloween\b", "\U0001F383"),
"jack-o-lantern": (r"\bjack-o-lantern\b", "\U0001F383"),
"danger": (r"\bdanger\b", "\U00002620"),
"bat": (r"\bbat((wo)?m[ae]n|persons?|people|s)?\b", "\U0001F987"),
}
class HolidayReact(Cog):
"""A cog that makes the bot react to message triggers."""
def __init__(self, bot: Bot):
self.bot = bot
@in_month(Month.OCTOBER)
@Cog.listener()
async def on_message(self, message: discord.Message) -> None:
"""Triggered when the bot sees a message in a holiday month."""
for name, trigger in SPOOKY_TRIGGERS.items():
trigger_test = re.search(trigger[0], message.content.lower())
if trigger_test:
# Check message for bot replies and/or command invocations
# Short circuit if they're found, logging is handled in _short_circuit_check
if await self._short_circuit_check(message):
return
else:
await message.add_reaction(trigger[1])
log.info(f"Added {name!r} reaction to message ID: {message.id}")
async def _short_circuit_check(self, message: discord.Message) -> bool:
"""
Short-circuit helper check.
Return True if:
* author is a bot
* prefix is not None
"""
# Check if message author is a bot
if message.author.bot:
log.debug(f"Ignoring reactions on bot message. Message ID: {message.id}")
return True
# Check for command invocation
# Because on_message doesn't give a full Context object, generate one first
ctx = await self.bot.get_context(message)
if ctx.prefix:
log.debug(f"Ignoring reactions on command invocation. Message ID: {message.id}")
return True
return False
async def setup(bot: Bot) -> None:
"""Load the Holiday Reaction Cog."""
await bot.add_cog(HolidayReact(bot))
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