v1.0

invoices/views_info.py

@@ -0,0 +1,81 @@
+from django.contrib.auth.decorators import login_required, permission_required
+from django.db.models import Count, Q, Sum
+from django.http import JsonResponse
+from django.utils import timezone
+from datetime import timedelta
+from .models import Invoice, Offer, Reminder, Customer
+
+
+@login_required
+@permission_required("invoices_invoices_info")
+def ajax_invoice_info(request):
+    now = timezone.now()
+    data = (
+        Invoice.objects
+        .filter(issue_date__year=now.year, issue_date__month=now.month)
+        .values("status")
+        .annotate(count=Count("id"))
+    )
+    return JsonResponse({item["status"]: item["count"] for item in data})
+
+
+@login_required
+@permission_required("invoices_offers_info")
+def ajax_offer_info(request):
+    now = timezone.now()
+    data = (
+        Offer.objects
+        .filter(issue_date__year=now.year, issue_date__month=now.month)
+        .values("status")
+        .annotate(count=Count("id"))
+    )
+    return JsonResponse({item["status"]: item["count"] for item in data})
+
+
+@login_required
+@permission_required("invoices_reminders_info")
+def ajax_reminder_info(request):
+    now = timezone.now()
+    data = (
+        Reminder.objects
+        .filter(issue_date__year=now.year, issue_date__month=now.month)
+        .values("status")
+        .annotate(count=Count("id"))
+    )
+    return JsonResponse({item["status"]: item["count"] for item in data})
+
+
+@login_required
+@permission_required("invoices_info")
+def ajax_kpi_info(request):
+    today = timezone.now().date()
+
+    overdue_invoices = Invoice.objects.filter(status="overdue").count()
+    open_invoices = Invoice.objects.filter(status="sent").count()
+    open_offers = Offer.objects.filter(status="sent").count()
+    open_reminders = Reminder.objects.filter(status="sent").count()
+
+    overdue_amount = (
+        Invoice.objects
+        .filter(status="overdue")
+        .aggregate(total=Sum("items__unit_price_net"))["total"] or 0
+    )
+
+    return JsonResponse({
+        "overdue_invoices": overdue_invoices,
+        "open_invoices": open_invoices,
+        "open_offers": open_offers,
+        "open_reminders": open_reminders,
+    })
+
+
+@login_required
+@permission_required("invoices_customers_info")
+def ajax_customer_info(request):
+    start_of_week = timezone.now().date() - timedelta(days=timezone.now().weekday())
+    return JsonResponse({
+        "total": Customer.objects.count(),
+        "new_this_week": Customer.objects.filter(created_at__date__gte=start_of_week).count(),
+        "companies": Customer.objects.filter(customer_type="company").count(),
+        "private": Customer.objects.filter(customer_type="private").count(),
+    })