Add a management command to notify admins about new log records

hc/logs/management/commands/sendlogs.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from datetime import timedelta as td
+from typing import Any
+
+from django.conf import settings
+from django.core.mail import mail_admins
+from django.core.management.base import BaseCommand
+from django.urls import reverse
+from django.utils.timezone import now
+
+from hc.logs.models import Record
+
+YEAR_AGO = now() - td(days=365)
+
+
+class Command(BaseCommand):
+    help = """Send notification to admins about new log events."""
+
+    def handle(self, **options: Any) -> str:
+        threshold = now() - td(hours=24)
+        count = Record.objects.filter(created__gt=threshold).count()
+        if count > 0:
+            url = settings.SITE_ROOT + reverse("admin:logs_record_changelist")
+            s_maybe = "" if count == 1 else "s"
+            message = f"{count} new log record{s_maybe} in the last 24 hours"
+            html_message = f"""
+            {count} new log record{s_maybe} in the last 24 hours.<br />
+            <a href="{url}">Show log records</a>.
+            """
+            mail_admins(message, message, html_message=html_message)
+            return f"Done, {count} new log record{s_maybe}."
+
+        return "Done, no new log records."