Basic dashboard page

bookwyrm/views/admin/dashboard.py

@@ -0,0 +1,75 @@
+""" instance overview """
+from datetime import timedelta
+
+from django.contrib.auth.decorators import login_required, permission_required
+from django.template.response import TemplateResponse
+from django.utils import timezone
+from django.utils.decorators import method_decorator
+from django.views import View
+
+from bookwyrm import models
+
+
+# pylint: disable= no-self-use
+@method_decorator(login_required, name="dispatch")
+@method_decorator(
+    permission_required("bookwyrm.moderate_user", raise_exception=True),
+    name="dispatch",
+)
+class Dashboard(View):
+    """admin overview"""
+
+    def get(self, request):
+        """list of users"""
+        buckets = 6
+        bucket_size = 1  # days
+        now = timezone.now()
+
+        user_queryset = models.User.objects.filter(local=True, is_active=True)
+
+        user_stats = {"labels": [], "total": [], "active": []}
+        interval_end = now - timedelta(days=buckets * bucket_size)
+        while interval_end < timezone.now():
+            user_stats["total"].append(user_queryset.filter(
+                created_date__lte=interval_end
+            ).count())
+            user_stats["active"].append(user_queryset.filter(
+                local=True,
+                is_active=True,
+                last_active_date__gte=interval_end - timedelta(days=31),
+                created_date__lte=interval_end
+            ).count())
+            user_stats["labels"].append(interval_end.strftime("%Y-%m-%d"))
+            interval_end += timedelta(days=bucket_size)
+
+        status_queryset = models.Status.objects.filter(
+            user__local=True, deleted=False
+        )
+        status_stats = {"labels": [], "total": []}
+        interval_start = now - timedelta(days=buckets * bucket_size)
+        interval_end = interval_start + timedelta(days=bucket_size)
+        while interval_end < timezone.now():
+            status_stats["total"].append(status_queryset.filter(
+                created_date__gte=interval_start,
+                created_date__lte=interval_end,
+            ).count())
+            status_stats["labels"].append(interval_start.strftime("%Y-%m-%d"))
+            interval_start = interval_end
+            interval_end += timedelta(days=bucket_size)
+
+
+        data = {
+            "users": user_queryset.count(),
+            "active_users": user_queryset.filter(
+                last_active_date__gte=now - timedelta(days=31)
+            ).count(),
+            "statuses": status_queryset.count(),
+            "works": models.Work.objects.count(),
+            "reports": models.Report.objects.filter(resolved=False).count(),
+            "invite_requests": models.InviteRequest.objects.filter(
+                ignored=False, invite_sent=False
+            ).count(),
+            "user_stats": user_stats,
+            "status_stats": status_stats,
+        }
+        return TemplateResponse(request, "settings/dashboard.html", data)