47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
import smtplib
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from email.message import EmailMessage
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from itertools import groupby
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from django.core.mail import send_mail
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from django.core.management.base import BaseCommand, CommandError
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from django.template import loader
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from tasks.models import Tool, Task, Event, Reminder
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class Command(BaseCommand):
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help = 'Sends any notifications for upcoming and overdue tasks'
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def _send_email(self, to, subject, content):
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msg = EmailMessage()
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msg.set_content(content)
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msg['Subject'] = subject
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msg['From'] = 'adam@adamgoldsmith.name'
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msg['To'] = to
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with smtplib.SMTP("localhost") as server:
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server.send_message(msg)
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def _active_reminders(self):
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for reminder in Reminder.objects.all():
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if reminder.should_remind:
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yield reminder
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def handle(self, *args, **options):
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template = loader.get_template('tasks/notificationEmail.txt')
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reminders_per_user = {
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user: sorted(reminders, key=lambda r: r.task.next_recurrence)
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for user, reminders in groupby(self._active_reminders(), lambda r: r.user)
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}
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for user, reminders in reminders_per_user.items():
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self.stdout.write(self.style.SUCCESS(
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f'Sending notification for {len(reminders)} task(s) to {user}'))
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self._send_email(
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user.email,
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f'[CMS Tool Maintenance] {len(reminders)} tasks are upcoming or overdue!',
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template.render({'reminders': reminders}).strip())
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