161 lines
6.7 KiB
Python
161 lines
6.7 KiB
Python
@csrf_exempt
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def create_sale_api(request):
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if request.method == 'POST':
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try:
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data = json.loads(request.body)
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customer_id = data.get('customer_id')
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invoice_number = data.get('invoice_number', '')
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items = data.get('items', [])
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# Retrieve amounts
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subtotal = data.get('subtotal', 0)
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vat_amount = data.get('vat_amount', 0)
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total_amount = data.get('total_amount', 0)
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paid_amount = data.get('paid_amount', 0)
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discount = data.get('discount', 0)
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payment_type = data.get('payment_type', 'cash')
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payment_method_id = data.get('payment_method_id')
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due_date = data.get('due_date')
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notes = data.get('notes', '')
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# Loyalty data
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points_to_redeem = data.get('loyalty_points_redeemed', 0)
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customer = None
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if customer_id:
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customer = Customer.objects.get(id=customer_id)
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if not customer and payment_type != 'cash':
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return JsonResponse({'success': False, 'error': _('Credit or Partial payments are not allowed for Guest customers.')}, status=400)
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settings = SystemSetting.objects.first()
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if not settings:
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settings = SystemSetting.objects.create()
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loyalty_discount = 0
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if settings.loyalty_enabled and customer and points_to_redeem > 0:
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if customer.loyalty_points >= points_to_redeem:
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loyalty_discount = float(points_to_redeem) * float(settings.currency_per_point)
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sale = Sale.objects.create(
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customer=customer,
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invoice_number=invoice_number,
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subtotal=subtotal,
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vat_amount=vat_amount,
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total_amount=total_amount,
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paid_amount=paid_amount,
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balance_due=float(total_amount) - float(paid_amount),
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discount=discount,
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loyalty_points_redeemed=points_to_redeem,
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loyalty_discount_amount=loyalty_discount,
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payment_type=payment_type,
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due_date=due_date if due_date else None,
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notes=notes,
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created_by=request.user
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)
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# Set status based on payments
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if float(paid_amount) >= float(total_amount):
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sale.status = 'paid'
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elif float(paid_amount) > 0:
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sale.status = 'partial'
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else:
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sale.status = 'unpaid'
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sale.save()
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# Record initial payment if any
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if float(paid_amount) > 0:
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pm = None
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if payment_method_id:
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pm = PaymentMethod.objects.filter(id=payment_method_id).first()
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SalePayment.objects.create(
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sale=sale,
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amount=paid_amount,
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payment_method=pm,
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payment_method_name=pm.name_en if pm else payment_type.capitalize(),
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notes="Initial payment",
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created_by=request.user
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)
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for item in items:
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product = Product.objects.get(id=item['id'])
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SaleItem.objects.create(
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sale=sale,
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product=product,
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quantity=item['quantity'],
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unit_price=item['price'],
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line_total=item['line_total']
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)
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product.stock_quantity -= int(item['quantity'])
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product.save()
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# Handle Loyalty Points
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if settings.loyalty_enabled and customer:
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# Earn Points
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points_earned = float(total_amount) * float(settings.points_per_currency)
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if customer.loyalty_tier:
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points_earned *= float(customer.loyalty_tier.point_multiplier)
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if points_earned > 0:
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customer.loyalty_points += decimal.Decimal(str(points_earned))
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LoyaltyTransaction.objects.create(
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customer=customer,
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sale=sale,
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transaction_type='earned',
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points=points_earned,
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notes=f"Points earned from Sale #{sale.id}"
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)
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# Redeem Points
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if points_to_redeem > 0:
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customer.loyalty_points -= decimal.Decimal(str(points_to_redeem))
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LoyaltyTransaction.objects.create(
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customer=customer,
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sale=sale,
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transaction_type='redeemed',
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points=-points_to_redeem,
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notes=f"Points redeemed for Sale #{sale.id}"
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)
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customer.update_tier()
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customer.save()
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return JsonResponse({
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'success': True,
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'sale_id': sale.id,
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'business': {
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'name': settings.business_name,
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'address': settings.address,
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'phone': settings.phone,
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'email': settings.email,
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'currency': settings.currency_symbol,
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'vat_number': settings.vat_number,
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'registration_number': settings.registration_number,
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'logo_url': settings.logo.url if settings.logo else None
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},
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'sale': {
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'id': sale.id,
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'invoice_number': sale.invoice_number,
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'created_at': sale.created_at.strftime("%Y-%m-%d %H:%M"),
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'subtotal': float(sale.subtotal),
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'vat_amount': float(sale.vat_amount),
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'total': float(sale.total_amount),
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'discount': float(sale.discount),
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'paid': float(sale.paid_amount),
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'balance': float(sale.balance_due),
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'customer_name': sale.customer.name if sale.customer else 'Guest',
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'items': [
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{
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'name_en': si.product.name_en,
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'name_ar': si.product.name_ar,
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'qty': si.quantity,
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'price': float(si.unit_price),
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'total': float(si.line_total)
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} for si in sale.items.all()
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]
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}
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})
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except Exception as e:
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return JsonResponse({'success': False, 'error': str(e)}, status=400) |