Businessman uchun statistikalar qo'shildi!

core/apps/management/views/common/list.py

@@ -1,8 +1,11 @@
-from django.shortcuts import render
-from django.contrib.auth.decorators import login_required
-from core.apps.management.models import Device, Income, Expense, Warehouse, ToyMovement, Report
+from core.apps.management.models import Device, Income, Expense, Warehouse, ToyMovement
 from core.apps.accounts.models import User
+from django.contrib.auth.decorators import login_required
 from core.apps.management.decorators import role_required
+from decimal import Decimal
+from django.db.models import Sum
+from django.shortcuts import render
+
 
 @login_required
 @role_required(["manager", "businessman"])
@@ -150,36 +153,114 @@ def device_payment_list(request):
         }
     )
 
-from django.contrib.auth.decorators import login_required
-from django.shortcuts import render
-from django.db.models import Q
-
-from core.apps.management.models import Report
-from core.apps.management.decorators import role_required
 
 
 @login_required
-@role_required(['manager', 'businessman'])
-def report_list(request):
-    reports = (
-        Report.objects
-        .select_related("device", "device__district", "created_by")
-        .order_by("-created_at")
-    )
+@role_required(["businessman", "manager"])
+def device_statistics(request):
+    """
+    Har bir ToyMovement uchun kirim / xarajat / foyda hisoblaydi.
 
-    if request.user.role == "manager":
-        reports = reports.filter(
-            device__district__region=request.user.region
-        )
+    Formula:
+        narx1 = oylik maosh / 30
+        narx2 = narx1 / aparat soni          (maosh ulushi, qurilma/kun)
+        narx3 = kunlik umumiy xarajat / aparat soni  (boshqa umumiy / kun)
+        narx4 = arenda / 30                   (shu qurilma arenda / kun)
+        xarajat = narx2 + narx3 + narx4
+        kirim   = harakat miqdori * o'yinchoq narxi
+        foyda   = kirim - xarajat
+    """
 
-    return render(
-        request,
-        "common/lists/report_list.html",
-        {
-            "reports": reports,
-            "title": "Hisobotlar"
-        }
+    # ── FILTERS ──────────────────────────────────────────────────
+    start_date = request.GET.get("start_date")
+    end_date   = request.GET.get("end_date")
+    device_id  = request.GET.get("device")
+
+    qs = ToyMovement.objects.select_related("device", "created_by").filter(
+        device__isnull=False
     )
+    if start_date:
+        qs = qs.filter(created_at__date__gte=start_date)
+    if end_date:
+        qs = qs.filter(created_at__date__lte=end_date)
+    if device_id:
+        qs = qs.filter(device_id=device_id)
+
+    qs = qs.order_by("-created_at")
+
+    # ── SHARED CONSTANTS ─────────────────────────────────────────
+    total_devices = Device.objects.count() or 1
+
+    # Latest toy price
+    latest_income = Income.objects.order_by("-created_at").first()
+    price_per_toy = latest_income.price_per_toy if latest_income else Decimal("0")
+
+    # Total confirmed salary → narx1 → narx2
+    total_salary = Expense.objects.filter(
+        expense_type=Expense.ExpenseType.SALARY,
+        is_confirmed=True,
+    ).aggregate(s=Sum("amount"))["s"] or Decimal("0")
+
+    narx1 = total_salary / 30
+    narx2 = narx1 / total_devices
+
+    # General (non-device-specific, non-salary) confirmed expenses → narx3
+    total_general = Expense.objects.filter(
+        is_confirmed=True,
+        device__isnull=True,
+    ).exclude(
+        expense_type=Expense.ExpenseType.SALARY
+    ).aggregate(s=Sum("amount"))["s"] or Decimal("0")
+
+    narx3 = (total_general / 30) / total_devices
+
+    # ── BUILD ROWS ────────────────────────────────────────────────
+    rows = []
+    total_kirim   = Decimal("0")
+    total_xarajat = Decimal("0")
+    total_foyda   = Decimal("0")
+
+    for mv in qs:
+        device = mv.device
+
+        # KIRIM
+        kirim = Decimal(mv.quantity) * price_per_toy
+
+        # narx4 — rent for this device per day
+        narx4 = Decimal(device.amount) / 30 if device.amount else Decimal("0")
+
+        # Direct device expenses (maintenance etc.) / 30
+        direct = Expense.objects.filter(
+            device=device, is_confirmed=True
+        ).aggregate(s=Sum("amount"))["s"] or Decimal("0")
+        narx_direct = direct / 30
+
+        xarajat = narx2 + narx3 + narx4 + narx_direct
+        foyda   = kirim - xarajat
+
+        total_kirim   += kirim
+        total_xarajat += xarajat
+        total_foyda   += foyda
+
+        rows.append({
+            "device_name": device.address,
+            "quantity":    mv.quantity,
+            "kirim":       kirim,
+            "xarajat":     xarajat,
+            "foyda":       foyda,
+            "date":        mv.created_at.strftime("%d.%m.%Y %H:%M"),
+        })
+
+    return render(request, "common/lists/report_list.html", {
+        "rows":          rows,
+        "devices":       Device.objects.order_by("address"),
+        "total_kirim":   total_kirim,
+        "total_xarajat": total_xarajat,
+        "total_foyda":   total_foyda,
+        "price_per_toy": price_per_toy,
+    })
+
+
 
 @login_required
 @role_required(["employee"])