app/job_runner.py

75 lines
1.9 KiB
Python

"""
Run scheduled jobs.
Not meant for running job at precise time (+- 1h)
"""
import time
import arrow
from app.config import JOB_ONBOARDING_1
from app.email_utils import (
send_email,
render,
)
from app.extensions import db
from app.log import LOG
from app.models import (
User,
Job,
)
from server import create_app
# fix the database connection leak issue
# use this method instead of create_app
def new_app():
app = create_app()
@app.teardown_appcontext
def shutdown_session(response_or_exc):
# same as shutdown_session() in flask-sqlalchemy but this is not enough
db.session.remove()
# dispose the engine too
db.engine.dispose()
return app
def onboarding_1(user):
send_email(
user.email,
f"Do you know you can send emails to anyone from your alias?",
render("com/onboarding-1.txt", user=user),
render("com/onboarding-1.html", user=user),
)
if __name__ == "__main__":
while True:
# run a job 1h earlier or later is not a big deal ...
min_dt = arrow.now().shift(hours=-1)
max_dt = arrow.now().shift(hours=1)
app = new_app()
with app.app_context():
for job in Job.query.filter(
Job.taken == False, Job.run_at > min_dt, Job.run_at <= max_dt
).all():
LOG.d("Take job %s", job)
# mark the job as taken, whether it will be executed successfully or not
job.taken = True
db.session.commit()
if job.name == JOB_ONBOARDING_1:
user_id = job.payload.get("user_id")
user = User.get(user_id)
LOG.d("run onboarding_1 for user %s", user)
onboarding_1(user)
else:
LOG.error("Unknown job name %s", job.name)
time.sleep(10)