Files
nanobot/nanobot/command/builtin.py

111 lines
3.7 KiB
Python

"""Built-in slash command handlers."""
from __future__ import annotations
import asyncio
import os
import sys
from nanobot import __version__
from nanobot.bus.events import OutboundMessage
from nanobot.command.router import CommandContext, CommandRouter
from nanobot.utils.helpers import build_status_content
async def cmd_stop(ctx: CommandContext) -> OutboundMessage:
"""Cancel all active tasks and subagents for the session."""
loop = ctx.loop
msg = ctx.msg
tasks = loop._active_tasks.pop(msg.session_key, [])
cancelled = sum(1 for t in tasks if not t.done() and t.cancel())
for t in tasks:
try:
await t
except (asyncio.CancelledError, Exception):
pass
sub_cancelled = await loop.subagents.cancel_by_session(msg.session_key)
total = cancelled + sub_cancelled
content = f"Stopped {total} task(s)." if total else "No active task to stop."
return OutboundMessage(channel=msg.channel, chat_id=msg.chat_id, content=content)
async def cmd_restart(ctx: CommandContext) -> OutboundMessage:
"""Restart the process in-place via os.execv."""
msg = ctx.msg
async def _do_restart():
await asyncio.sleep(1)
os.execv(sys.executable, [sys.executable, "-m", "nanobot"] + sys.argv[1:])
asyncio.create_task(_do_restart())
return OutboundMessage(channel=msg.channel, chat_id=msg.chat_id, content="Restarting...")
async def cmd_status(ctx: CommandContext) -> OutboundMessage:
"""Build an outbound status message for a session."""
loop = ctx.loop
session = ctx.session or loop.sessions.get_or_create(ctx.key)
ctx_est = 0
try:
ctx_est, _ = loop.memory_consolidator.estimate_session_prompt_tokens(session)
except Exception:
pass
if ctx_est <= 0:
ctx_est = loop._last_usage.get("prompt_tokens", 0)
return OutboundMessage(
channel=ctx.msg.channel,
chat_id=ctx.msg.chat_id,
content=build_status_content(
version=__version__, model=loop.model,
start_time=loop._start_time, last_usage=loop._last_usage,
context_window_tokens=loop.context_window_tokens,
session_msg_count=len(session.get_history(max_messages=0)),
context_tokens_estimate=ctx_est,
),
metadata={"render_as": "text"},
)
async def cmd_new(ctx: CommandContext) -> OutboundMessage:
"""Start a fresh session."""
loop = ctx.loop
session = ctx.session or loop.sessions.get_or_create(ctx.key)
snapshot = session.messages[session.last_consolidated:]
session.clear()
loop.sessions.save(session)
loop.sessions.invalidate(session.key)
if snapshot:
loop._schedule_background(loop.memory_consolidator.archive_messages(snapshot))
return OutboundMessage(
channel=ctx.msg.channel, chat_id=ctx.msg.chat_id,
content="New session started.",
)
async def cmd_help(ctx: CommandContext) -> OutboundMessage:
"""Return available slash commands."""
lines = [
"🐈 nanobot commands:",
"/new — Start a new conversation",
"/stop — Stop the current task",
"/restart — Restart the bot",
"/status — Show bot status",
"/help — Show available commands",
]
return OutboundMessage(
channel=ctx.msg.channel,
chat_id=ctx.msg.chat_id,
content="\n".join(lines),
metadata={"render_as": "text"},
)
def register_builtin_commands(router: CommandRouter) -> None:
"""Register the default set of slash commands."""
router.priority("/stop", cmd_stop)
router.priority("/restart", cmd_restart)
router.priority("/status", cmd_status)
router.exact("/new", cmd_new)
router.exact("/status", cmd_status)
router.exact("/help", cmd_help)