AJ Isaacs
a8e8b63f5e
Add a new cog that gives the bot ambient presence by reacting to messages with contextual emoji chosen by the triage LLM. Includes RNG gating and per-channel cooldown to keep reactions sparse and natural. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
import asyncio
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import logging
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import random
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import time
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import discord
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from discord.ext import commands
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logger = logging.getLogger("bcs.reactions")
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class ReactionCog(commands.Cog):
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def __init__(self, bot: commands.Bot):
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self.bot = bot
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# Per-channel timestamp of last reaction
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self._last_reaction: dict[int, float] = {}
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@commands.Cog.listener()
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async def on_message(self, message: discord.Message):
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if message.author.bot or not message.guild:
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return
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cfg = self.bot.config.get("reactions", {})
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if not cfg.get("enabled", False):
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return
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# Skip empty messages
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if not message.content or not message.content.strip():
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return
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# RNG gate
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chance = cfg.get("chance", 0.15)
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if random.random() > chance:
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return
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# Per-channel cooldown
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ch_id = message.channel.id
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cooldown = cfg.get("cooldown_seconds", 45)
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now = time.monotonic()
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if now - self._last_reaction.get(ch_id, 0) < cooldown:
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return
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# Fire and forget so we don't block anything
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asyncio.create_task(self._try_react(message, ch_id, now))
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async def _try_react(self, message: discord.Message, ch_id: int, now: float):
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try:
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emoji = await self.bot.llm.pick_reaction(
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message.content, message.channel.name,
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)
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if not emoji:
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return
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await message.add_reaction(emoji)
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self._last_reaction[ch_id] = now
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logger.info(
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"Reacted %s to %s in #%s: %s",
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emoji, message.author.display_name,
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message.channel.name, message.content[:60],
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)
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except discord.HTTPException as e:
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# Invalid emoji or missing permissions — silently skip
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logger.debug("Reaction failed: %s", e)
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except Exception:
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logger.exception("Unexpected reaction error")
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async def setup(bot: commands.Bot):
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await bot.add_cog(ReactionCog(bot))
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