..

osinaweb/billing/add/urls.py

@@ -6,4 +6,5 @@ urlpatterns = [
     path('product', views.add_product, name='addproduct'),
     path('service', views.add_service, name='addservice'),
     path('order', views.add_order, name='addorder'),
+    path('invoice/<int:order_id>/', views.add_invoice_pdf, name='addinvoice'),
 ]

osinaweb/billing/add/views.py

@@ -5,6 +5,7 @@ from django.http import JsonResponse, HttpResponse
 from django.template.loader import get_template
 from django.conf import settings
 import os
+from weasyprint import HTML, CSS
 
 
 
@@ -110,6 +111,73 @@ def add_order (request, *args, **kwargs):
 
 
 
+def add_invoice_pdf(request, order_id):
+
+    order = get_object_or_404(Order, id=order_id)
+
+    
+    current_year = str(timezone.now().year)[-2:]
+    last_invoice = Invoice.objects.filter(invoice_number__startswith=current_year).order_by('-invoice_number').first()
+    if last_invoice:
+        last_invoice_number = int(last_invoice.invoice_number.split('-')[1].split('+')[0])
+        new_invoice_number = f"${current_year}-{last_invoice_number + 1}"
+    else:
+        new_invoice_number = f"${current_year}-1425"
+
+
+    invoice = Invoice.objects.create(
+        invoice_number = new_invoice_number,
+        order=order,
+        date_created=datetime.now(),
+    )
+
+    template = get_template('details_templates/invoice-details.html')
+    context = {'order': order} 
+    html_string = template.render(context)
+
+    # Define the CSS string with Poppins font
+    css_string = '''
+        @font-face {
+            font-family: 'Poppins';
+            src: url('path_to_poppins_font_file.ttf') format('truetype');  /* Update the path to the font file */
+        }
+        
+        body {
+            font-family: 'Poppins', sans-serif;  /* Use Poppins font for the entire document */
+        }
+        
+        /* Your existing CSS styles */
+        /* Add or modify styles as needed */
+    '''
+
+    # Generate PDF
+    pdf = HTML(string=html_string).write_pdf(
+        stylesheets=[
+            CSS(string=css_string),
+            CSS(string='@page { margin: 30px; }')
+        ],
+        presentational_hints=True
+    )
+
+
+    # Save PDF to a file
+    pdf_file_path = os.path.join(settings.MEDIA_ROOT, f'invoice_{invoice.id}.pdf')
+    with open(pdf_file_path, 'wb') as pdf_file:
+        pdf_file.write(pdf)
+
+    # Associate PDF file path with the Invoice object
+    invoice.pdf = pdf_file_path
+    invoice.save()
+
+    # Return PDF
+    response = HttpResponse(pdf, content_type='application/pdf')
+    response['Content-Disposition'] = 'attachment; filename="my_pdf.pdf"'
+
+    return response
+
+
+
+