mirror of
https://github.com/ae-utbm/sith.git
synced 2024-11-15 02:33:22 +00:00
122 lines
4.1 KiB
Python
122 lines
4.1 KiB
Python
import logging
|
|
import time
|
|
from smtplib import SMTPException
|
|
|
|
from django.conf import settings
|
|
from django.core.mail import send_mail
|
|
from django.core.management.base import BaseCommand
|
|
from django.db.models import Exists, OuterRef, QuerySet, Subquery
|
|
from django.template.loader import render_to_string
|
|
from django.utils.timezone import localdate, now
|
|
from django.utils.translation import gettext as _
|
|
|
|
from core.models import User
|
|
from counter.models import AccountDump
|
|
from subscription.models import Subscription
|
|
|
|
|
|
class Command(BaseCommand):
|
|
"""Send mail to inactive users, warning them that their account is about to be dumped.
|
|
|
|
This command should be automated with a cron task.
|
|
"""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
self.logger = logging.getLogger("account_dump_mail")
|
|
self.logger.setLevel(logging.INFO)
|
|
super().__init__(*args, **kwargs)
|
|
|
|
def add_arguments(self, parser):
|
|
parser.add_argument(
|
|
"--dry-run",
|
|
action="store_true",
|
|
help="Do not send the mails, just display the number of users concerned",
|
|
)
|
|
parser.add_argument(
|
|
"-d",
|
|
"--delay",
|
|
type=float,
|
|
default=0,
|
|
help="Delay in seconds between each mail sent",
|
|
)
|
|
|
|
def handle(self, *args, **options):
|
|
users: list[User] = list(self._get_users())
|
|
self.stdout.write(f"{len(users)} users will be warned of their account dump")
|
|
if options["verbosity"] > 1:
|
|
self.stdout.write("Users concerned:\n")
|
|
self.stdout.write(
|
|
"\n".join(
|
|
f" - {user.get_display_name()} ({user.email}) : "
|
|
f"{user.customer.amount} €"
|
|
for user in users
|
|
)
|
|
)
|
|
if options["dry_run"]:
|
|
return
|
|
dumps = []
|
|
for user in users:
|
|
is_success = self._send_mail(user)
|
|
dumps.append(
|
|
AccountDump(
|
|
customer_id=user.id,
|
|
warning_mail_sent_at=now(),
|
|
warning_mail_error=not is_success,
|
|
)
|
|
)
|
|
if options["delay"]:
|
|
# avoid spamming the mail server too much
|
|
time.sleep(options["delay"])
|
|
|
|
AccountDump.objects.bulk_create(dumps)
|
|
self.stdout.write("Finished !")
|
|
|
|
@staticmethod
|
|
def _get_users() -> QuerySet[User]:
|
|
ongoing_dump_operation = AccountDump.objects.ongoing().filter(
|
|
customer__user=OuterRef("pk")
|
|
)
|
|
return (
|
|
User.objects.filter_inactive()
|
|
.filter(customer__amount__gt=0)
|
|
.exclude(Exists(ongoing_dump_operation))
|
|
.annotate(
|
|
last_subscription_date=Subquery(
|
|
Subscription.objects.filter(member=OuterRef("pk"))
|
|
.order_by("-subscription_end")
|
|
.values("subscription_end")[:1]
|
|
),
|
|
)
|
|
.select_related("customer")
|
|
)
|
|
|
|
def _send_mail(self, user: User) -> bool:
|
|
"""Send the warning email to the given user.
|
|
|
|
Returns:
|
|
True if the mail was successfully sent, else False
|
|
"""
|
|
message = render_to_string(
|
|
"counter/account_dump_warning_mail.jinja",
|
|
{
|
|
"balance": user.customer.amount,
|
|
"last_subscription_date": user.last_subscription_date,
|
|
"dump_date": localdate() + settings.SITH_ACCOUNT_DUMP_DELTA,
|
|
},
|
|
)
|
|
try:
|
|
# sending mails one by one is long and ineffective,
|
|
# but it makes easier to know which emails failed (and how).
|
|
# Also, there won't be that much mails sent (except on the first run)
|
|
send_mail(
|
|
_("Clearing of your AE account"),
|
|
message,
|
|
settings.DEFAULT_FROM_EMAIL,
|
|
[user.email],
|
|
)
|
|
self.logger.info(f"Mail successfully sent to {user.email}")
|
|
return True
|
|
except SMTPException as e:
|
|
self.logger.error(f"failed mail to {user.email} :\n{e}")
|
|
return False
|