feat: Add new inventory and POS components, including a script to reproduce a POS checkout sale price bug.

myproject/reproduce_issue.py

@@ -0,0 +1,120 @@
+
+import os
+import sys
+import json
+import django
+from decimal import Decimal
+
+# Setup Django
+sys.path.append(os.getcwd())
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
+django.setup()
+
+from django.test import RequestFactory
+from django.contrib.auth import get_user_model
+from django.db import connection
+
+from customers.models import Customer
+from inventory.models import Warehouse, Sale
+from products.models import Product, UnitOfMeasure
+from pos.views import pos_checkout
+from orders.models import OrderStatus
+
+def run():
+    # Setup Data
+    User = get_user_model()
+    user = User.objects.first()
+    if not user:
+        print("No user found")
+        return
+
+    # Create/Get Customer
+    customer, _ = Customer.objects.get_or_create(
+        name="Test Customer",
+        defaults={'phone': '+375291112233'}
+    )
+
+    # Create/Get Warehouse
+    warehouse, _ = Warehouse.objects.get_or_create(
+        name="Test Warehouse",
+        defaults={'is_active': True}
+    )
+
+    # Create product
+    product, _ = Product.objects.get_or_create(
+        name="Test Product Debug",
+        defaults={
+            'sku': 'DEBUG001',
+            'buying_price': 10,
+            'actual_price': 50,
+            'warehouse': warehouse
+        }
+    )
+    product.actual_price = 50
+    product.save()
+
+    # Ensure OrderStatus exists
+    OrderStatus.objects.get_or_create(code='completed', is_system=True, defaults={'name': 'Completed', 'is_positive_end': True})
+    OrderStatus.objects.get_or_create(code='draft', is_system=True, defaults={'name': 'Draft'})
+
+    # Prepare Request
+    factory = RequestFactory()
+    
+    payload = {
+        "customer_id": customer.id,
+        "warehouse_id": warehouse.id,
+        "items": [
+            {
+                "type": "product",
+                "id": product.id,
+                "quantity": 1,
+                "price": 100.00,  # Custom price
+                "quantity_base": 1
+            }
+        ],
+        "payments": [
+            {"payment_method": "cash", "amount": 100.00}
+        ],
+        "notes": "Debug Sale"
+    }
+
+    request = factory.post(
+        '/pos/api/checkout/',
+        data=json.dumps(payload),
+        content_type='application/json'
+    )
+    request.user = user
+
+    print("Executing pos_checkout...")
+    response = pos_checkout(request)
+    print(f"Response: {response.content}")
+
+    # Verify Sale
+    sales = Sale.objects.filter(product=product).order_by('-id')[:1]
+    if sales:
+        sale = sales[0]
+        print(f"Sale created. ID: {sale.id}")
+        print(f"Sale Quantity: {sale.quantity}")
+        print(f"Sale Price: {sale.sale_price}")
+        if sale.sale_price == 0:
+            print("FAILURE: Sale price is 0!")
+        else:
+            print(f"SUCCESS: Sale price is {sale.sale_price}")
+    else:
+        print("FAILURE: No Sale created!")
+
+if __name__ == "__main__":
+    from django_tenants.utils import schema_context
+    # Replace with actual schema name if needed, assuming 'public' for now or the default tenant
+    # Since I don't know the tenant, I'll try to run in the current context.
+    # But usually need to set schema.
+    # Let's try to find a tenant.
+    from tenants.models import Client
+    tenant = Client.objects.first()
+    if tenant:
+        print(f"Running in tenant: {tenant.schema_name}")
+        with schema_context(tenant.schema_name):
+            run()
+    else:
+        print("No tenant found, running in public?")
+        run()