mitlist/be/app/core/scheduler.py

70 lines
2.0 KiB
Python

from apscheduler.schedulers.asyncio import AsyncIOScheduler
from apscheduler.jobstores.sqlalchemy import SQLAlchemyJobStore
from apscheduler.executors.pool import ThreadPoolExecutor
from apscheduler.triggers.cron import CronTrigger
from app.config import settings
from app.jobs.recurring_expenses import generate_recurring_expenses
from app.db.session import async_session
import logging
logger = logging.getLogger(__name__)
sync_db_url = settings.DATABASE_URL.replace('postgresql+asyncpg://', 'postgresql://')
jobstores = {
'default': SQLAlchemyJobStore(url=sync_db_url)
}
executors = {
'default': ThreadPoolExecutor(20)
}
job_defaults = {
'coalesce': False,
'max_instances': 1
}
scheduler = AsyncIOScheduler(
jobstores=jobstores,
executors=executors,
job_defaults=job_defaults,
timezone='UTC'
)
async def run_recurring_expenses_job():
"""Wrapper function to run the recurring expenses job with a database session.
This function is used to generate recurring expenses for the user.
"""
try:
async with async_session() as session:
await generate_recurring_expenses(session)
except Exception as e:
logger.error(f"Error running recurring expenses job: {str(e)}")
raise
def init_scheduler():
"""Initialize and start the scheduler."""
try:
scheduler.add_job(
run_recurring_expenses_job,
trigger=CronTrigger(hour=0, minute=0), # Run at midnight UTC
id='generate_recurring_expenses',
name='Generate Recurring Expenses',
replace_existing=True
)
scheduler.start()
logger.info("Scheduler started successfully")
except Exception as e:
logger.error(f"Error initializing scheduler: {str(e)}")
raise
def shutdown_scheduler():
"""Shutdown the scheduler gracefully."""
try:
scheduler.shutdown()
logger.info("Scheduler shut down successfully")
except Exception as e:
logger.error(f"Error shutting down scheduler: {str(e)}")
raise