Files
simbarag/blueprints/scheduled_messages/scheduler.py
T
ryan 9bccac82f3 Add "Ask Simba" option to scheduled messages
When use_agent is enabled, the scheduler runs the message content as a
prompt through the LangChain agent and sends Simba's response instead of
the raw content. Frontend adds an Ask Simba toggle with visual indicator.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-06-04 11:15:11 -04:00

114 lines
3.8 KiB
Python

import asyncio
import logging
from datetime import datetime, timezone
from dateutil.relativedelta import relativedelta
from .models import ScheduledMessage, MessageChannel, MessageStatus, Recurrence
logger = logging.getLogger(__name__)
POLL_INTERVAL = 15
RECURRENCE_DELTAS = {
Recurrence.DAILY: relativedelta(days=1),
Recurrence.WEEKLY: relativedelta(weeks=1),
Recurrence.MONTHLY: relativedelta(months=1),
}
async def _run_agent(prompt: str) -> str:
"""Run a prompt through the LangChain agent and return the response text."""
from blueprints.conversation.agents import main_agent
from blueprints.conversation.prompts import SIMBA_SYSTEM_PROMPT
messages_payload = [
{"role": "system", "content": SIMBA_SYSTEM_PROMPT},
{"role": "user", "content": prompt},
]
response = await main_agent.ainvoke({"messages": messages_payload})
return response.get("messages", [])[-1].content
async def _schedule_next_occurrence(msg: ScheduledMessage):
"""Create the next pending occurrence for a recurring message."""
delta = RECURRENCE_DELTAS.get(msg.recurrence)
if not delta:
return
next_at = msg.scheduled_at + delta
# If we missed several intervals, advance until we're in the future
now = datetime.now(timezone.utc)
while next_at <= now:
next_at += delta
await ScheduledMessage.create(
recipient=msg.recipient,
channel=msg.channel,
content=msg.content,
subject=msg.subject,
scheduled_at=next_at,
recurrence=msg.recurrence,
use_agent=msg.use_agent,
created_by_id=msg.created_by_id,
)
logger.info(
f"Scheduled next {msg.recurrence.value} occurrence for {msg.id} at {next_at.isoformat()}"
)
async def scheduled_messages_loop():
"""Background loop that polls for and sends due scheduled messages."""
logger.info(f"Scheduled messages loop started (interval={POLL_INTERVAL}s)")
while True:
try:
now = datetime.now(timezone.utc)
due = await ScheduledMessage.filter(
status=MessageStatus.PENDING,
scheduled_at__lte=now,
).all()
for msg in due:
try:
send_content = msg.content
if msg.use_agent:
send_content = await _run_agent(msg.content)
if msg.channel == MessageChannel.IMESSAGE:
from blueprints.imessage import send_imessage
from utils.strip_markdown import strip_markdown
await send_imessage(msg.recipient, strip_markdown(send_content))
elif msg.channel == MessageChannel.EMAIL:
from blueprints.email import send_email_reply
await send_email_reply(
to=msg.recipient,
subject=msg.subject or "(no subject)",
body=send_content,
)
msg.status = MessageStatus.SENT
msg.error_message = None
await msg.save()
logger.info(
f"Sent scheduled {msg.channel.value} message {msg.id} to {msg.recipient}"
)
# Schedule next occurrence for recurring messages
if msg.recurrence != Recurrence.NONE:
await _schedule_next_occurrence(msg)
except Exception as e:
msg.status = MessageStatus.FAILED
msg.error_message = str(e)
await msg.save()
logger.error(f"Failed to send scheduled message {msg.id}: {e}")
except Exception:
logger.exception("Error in scheduled messages loop")
await asyncio.sleep(POLL_INTERVAL)