Add the invoice template

.gitignore

@@ -26,3 +26,4 @@ dist/
 *.iso
 *.sqlite3
 .DS_Store
+static/CACHE/

matrixhosting/static/matrixhosting/css/invoice.css

@@ -0,0 +1,113 @@
+body {
+    font-family: Avenir;
+    background: white; 
+    font-weight: 500;
+    line-height: 1.1em;
+    font-size: 16px; 
+    margin: auto;
+}
+p {
+     display: block;
+    -webkit-margin-before: 14px;
+    -webkit-margin-after: 14px;
+    -webkit-margin-start: 0px;
+    -webkit-margin-end: 0px;
+}
+.bold {
+    font-weight: bold;
+}
+.d1 {
+	line-height:1.1em;
+    width: 60%; 
+    float: left;
+}
+.d2 {
+	line-height:1.5em;
+    padding-top: 15px;
+    width: 40%; 
+    float: left; 
+}
+.d4 {
+	line-height:1.5em;
+    width:40%; 
+    float: left; 
+}
+.b1 {
+    width: 45%; 
+    float: left; 
+}
+.b2 {
+    width: 55%; 
+    float: left; 
+    text-align: right;
+    left: 0;
+}
+.d5 {
+    width: 100%;
+}
+.d6 {
+    width: 68%; 
+    float: left;
+    font-size: 13px;
+}
+.d7 {
+    width: 32%; 
+    float: left;
+}
+.wf {
+    width: 100%;
+}
+hr {
+    border: 0;
+    clear:both;
+    display: inline-block;
+    width: 100%;               
+    background-color:gray;
+    height: 1px;
+  }
+  .tl {
+    text-align: left;
+    margin-left: 5px;
+  }
+
+  .tr {
+      text-align: right;
+      margin-right: 5px;
+      float: right;
+  }
+   .tc {
+   	  text-align: center;
+   }
+  .pc p {
+    display: block;
+    -webkit-margin-before: 3px;
+    -webkit-margin-after: 5px;
+    -webkit-margin-start: 0px;
+    -webkit-margin-end: 0px;
+}
+  .th {
+      border-top: 1px solid gray;
+      border-bottom: 1px solid gray;
+      
+  }
+  .ts {
+      font-size: 14px;
+  }
+  .icon {
+      width: 16px;
+      height: 14px;
+      vertical-align: middle;
+      margin-right: 2px; 
+  }
+  .footer {
+      margin-top: 70px;
+      font-size: 14px;
+  }
+
+  .footer p {
+    display: block;
+    -webkit-margin-before: 5px;
+    -webkit-margin-after: 5px;
+    -webkit-margin-start: 0px;
+    -webkit-margin-end: 0px;
+}

matrixhosting/static/matrixhosting/js/payment.js

@@ -8,7 +8,50 @@ function setBrandIcon(brand) {
     brandIconElement.classList.add(pfClass);
 }
 
+function fetch_pricing() {
+    var url = '/pricing/' + $('input[name="pricing_name"]').val() + '/calculate/';
+    var cores = $('#cores').val();
+    var memory = $('#memory').val();
+    var storage = $('#storage').val();
+    $.ajax({ 
+        type: 'GET', 
+        url: url, 
+        data: { cores: cores, memory: memory, storage: storage}, 
+        dataType: 'json',
+        success: function (data) { 
+            if (data && data['total']) {
+                $('#total').text(data['total']);
+            }
+        }
+    });
+};
+
+function incrementValue(e) {
+    var valueElement = $(e.target).parent().parent().find('input');
+    var step = $(valueElement).attr('step');
+    var min = parseInt($(valueElement).attr('min'));
+    var max = parseInt($(valueElement).attr('max'));
+    var new_value = 0;
+    if (e.data.inc == 1) {
+        new_value = Math.min(parseInt($(valueElement).val()) + parseInt(step) * e.data.inc, max);
+    } else {
+        new_value = Math.max(parseInt($(valueElement).val()) + parseInt(step) * e.data.inc, min);
+    }
+    $(valueElement).val(new_value);
+    fetch_pricing();
+    return false;
+};
+
+
 $(document).ready(function () {
+    if ($('#pricing_name') != undefined) {
+        fetch_pricing();
+    }
+
+    $('.fa-plus-circle.right').bind('click', {inc: 1}, incrementValue);
+
+    $('.fa-minus-circle.left').bind('click', {inc: -1}, incrementValue);
+
     var hasCreditcard = window.hasCreditcard || false;
     if (hasCreditcard && window.stripeKey) {
         var stripe = Stripe(window.stripeKey);
@@ -154,7 +197,7 @@ $(document).ready(function () {
     });
     
     $('#checkout-btn').click(function () {
-        if($('input[name="payment_card"]:checked').size() == 1) { 
+        if($('input[name="payment_card"]:checked').length == 1) { 
             var id = $('input[name="payment_card"]:checked').val();
             if (id != 'new') {
                 $('#id_card').val(id);

matrixhosting/templates/matrixhosting/base.html

@@ -1,4 +1,4 @@
-{% load static i18n %} {% get_current_language as LANGUAGE_CODE %}
+{% load static compress i18n %} {% get_current_language as LANGUAGE_CODE %}
 <!DOCTYPE html>
 <html lang="{{LANGUAGE_CODE}}">
   <head>
@@ -22,11 +22,13 @@
       type="text/css"
     />
     <!-- Custom CSS -->
+    {% compress css %}
     <link
       href="{% static 'matrixhosting/css/theme.css' %}"
       rel="stylesheet"
       type="text/css"
     />
+    {% endcompress %}
     {% block css_extra %} {% endblock css_extra %}
 
     <!-- External Fonts -->
@@ -55,6 +57,8 @@
     <script src="{% static 'matrixhosting/js/bootstrap.bundle.min.js' %}"></script>
     <!-- Custom JS -->
     {% block js_extra %} {% endblock js_extra %}
-    <script src="{% static 'matrixhosting/js/theme.js' %}"></script>
+    {% compress js %}
+      <script src="{% static 'matrixhosting/js/theme.js' %}"></script>
+    {% endcompress %}
   </body>
 </html>

matrixhosting/templates/matrixhosting/invoice.html

@@ -1,49 +1,171 @@
 {% load static i18n %}
-{% get_current_language as LANGUAGE_CODE %}
 
-<!DOCTYPE html>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html lang="en">
 <head>
-    <meta charset="utf-8" />
-    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <meta name="description" content="Matrix Hosting by ungleich" />
-    <meta name="author" content="ungleich glarus ag" />
-    <title>
-      Hosting Invoice
-    </title>
-
-<!-- Web Fonts
-======================= -->
-<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Rubik:300,300i,400,400i,500,500i,700,700i,900,900i' type='text/css'>
-
-<!-- Stylesheet
-======================= -->
-<link href="{% static 'matrixhosting/css/bootstrap.min.css' %}" rel="stylesheet" />
+    <meta charset="UTF-8">
+    <meta name="viewport"
+          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>{%trans "Invoice: " %} {{bill.id}}</title>
+    <style>
+        @font-face {
+                    font-family: 'Avenir';
+                    src: url("{{ base_url }}{% static 'matrixhosting/webfonts/Avenir-Book.ttf' %}");
+                    }
+    </style>
+    <link href="{{ base_url }}{% static 'matrixhosting/css/invoice.css' %}" rel="stylesheet">
 </head>
 <body>
-<!-- Container -->
-<div class="container-fluid invoice-container">
-  <!-- Header -->
-  <header>
-  <div class="row align-items-center">
-    <div class="col-sm-7 text-center text-sm-start mb-3 mb-sm-0">
-      <img id="logo" src="{% static 'matrixhosting/images/logo.png' %}" title="matrixhosting" alt="matrixhosting" />
-    </div>
-    <div class="col-sm-5 text-center text-sm-end">
-      <h4 class="text-7 mb-0">Invoice</h4>
-    </div>
-  </div>
-  <hr>
-  </header>
 
-  <!-- Main Content -->
-  <main>
+<div class="invoice-container">
 
-  </main>
-  <!-- Footer -->
-  <footer class="text-center mt-4">
-  </footer>
+    <div class="header" style="line-height:1.1em;">
+        <div class="d1">
+            <div class="logo">
+                <img class="" src="{{ base_url }}{% static 'matrixhosting/images/company-small.jpg' %}" width="50%"/>
+            </div>
+        </div>
+        <div class="d2" name="company_address">
+            <span class="bold">ungleich glarus ag</span>
+            <address>
+                Bahnhofstrasse 1<br>
+                8783 Linthal<br>
+                    Switzerland
+            </address>
+        </div>
+    <div class="first-page">
+        
+        <div class="d1" style="margin-top:15px;">
+            <b>
+                <span style="font-size: 16px">{{bill.billing_address.full_name}}</span>
+            </b>
+            <br/>
+            
+            <span>{{bill.billing_address.owner.email}}</span>
+            <address>
+                {{bill.billing_address.street}}<br>
+                {{bill.billing_address.city}}<br>
+                {{bill.billing_address.get_country_display}}
+                </address>
+        </div>
+    </div>
+    <div class="d4" style="margin-top:15px;">
+        <div>
+            <div class="b1">
+                <span>{%trans "Date of invoice:" %}</span>
+            </div>
+            
+            <div class="b2">
+                <span>{{bill.starting_date|date}}</span>
+                <br/>
+            </div>
+        </div>
+        <div>
+            <div class="b1">
+                <span>{%trans "Invoice Number:" %}</span>
+            </div>
+            <div class="b2">
+                <span>#{{bill.id}}</span>
+            </div>
+        </div>
+        <div>
+            <div class="b1">
+                <span>{%trans "Due Date:" %}</span>
+                
+            </div>
+            <div class="b2">
+                <span>{{bill.due_date}}</span>
+                
+            </div>
+        </div>
+    </div>
+    <div style="clear: both;">
+    </div>
+    <div class="d5" style="margin-top:20px; margin-bottom:10px important;">
+        <br/>
+        <span style="font-size: 2em !important; font-weight: bolder !important;">{%trans "INVOICE" %}</span>
+        <span style="font-size: 2em !important; font-weight: bolder !important;padding-left:5px"> {{bill.starting_date|date:"m-Y"}}</span>
+    </div>
+    <div style="clear: both;">
+    <table class="wf" style="margin-top:20px; margin-bottom:10px important;border-top: 1px solid gray;">
+        <thead >
+            <tr class="" style="padding-top: 10px; padding-bottom:10px;background-color: #f5f5f5;">
+                <th class="tl bold" style="padding: 5px 0px 5px 0px !important;">{%trans "Product" %}</th>
+                <th class="tc bold" style="padding: 5px 0px 5px 0px !important;">{%trans "Quantity" %}</th>
+                <th class="bold" style="text-align: right; padding: 5px 0px 5px 0px !important;">{%trans "Amount in " %} <span>CHF</span></th>
+            </tr>
+        </thead>
+        {% for record in bill.bill_records.all %}
+        <tr class="ts" style="line-height:1.8em !important;">
+            <td class="tl">
+                <span>{{record.description}}</span>
+            </td>
+            <td class="tc">
+                <span>{{record.quantity}}</span>
+            </td>
+            <td style="text-align: right;">
+                <span>{{record.subtotal}}</span>
+            </td>
+        </tr>
+        {% endfor %}
+    </table>
+    <div class="page">
+        <div class="wf th">
+            <p class="ts">
+                <span class="tl">SubTotal</span>
+                <span class="tr">{{bill.subtotal}}</span>
+                </span>
+            </p>
+            <p class="ts">
+                <span class="tl">{{vat_rate}}</span>
+                <span class="tr">{{tax_amount}}
+                </span>
+            </p>
+        </div>
+        <div class="wf pc" style="background-color: #f5f5f5;padding-top:5px;padding-bottom:5px;">
+            <p class="bold" style="padding-top:5px;">
+                <span class="tl" style="font-size: 16px">{%trans "CHF" %}</span>
+                <span class="tr" style="font-size: 16px">{{bill.sum}}</span>
+            </p>
+        </div>
+    </div>
+    <div class="footer wf custom_footer">
+        <br/>
+        <div class="d6">
+            <p>
+                <img class="icon" src="{{ base_url }}{% static 'matrixhosting/images/call.png' %}"/>
+                <span>+4(144) 534-6622</span>
+            </p>
+            
+            <p>
+                <img class="icon" src="{{ base_url }}{% static 'matrixhosting/images/msg.png' %}"/>
+                <span>buchhaltung-ag@ungleich.ch</span>
+            </p>
+            <p>
+                <img class="icon" src="{{ base_url }}{% static 'matrixhosting/images/home.png' %}"/>
+                <span>https://www.ungleich.ch</span>
+            </p>
+            <p>
+                <img class="icon" src="{{ base_url }}{% static 'matrixhosting/images/twitter.png' %}"/>
+                @ungleich
+            </p>
+        </div>
+        <div class="d7">
+            <div>
+              <p>Glarner Kantonalbank</p>
+              <p>
+                  <span class="bold">IBAN: CH 4300 7730 0055 5931 177</span>
+              </p>
+              <p>
+                  <span class="bold">BIC: GLKBCH22</span>
+              </p>
+            </div>
+            <p style="font-size: 13px; white-space: nowrap !important">Mwst-Nummer:	CHE-156.970.649 MWST</span></p>
+        </div>
+    </div>
 </div>
+</div>
+
 </body>
 </html>

matrixhosting/templates/matrixhosting/order_confirmation.html

@@ -1,6 +1,6 @@
 {% extends "matrixhosting/base.html" %}
 
-{% load static i18n %}
+{% load static compress i18n %}
 
 {% block title %} Request Details {% endblock %}
 
@@ -130,7 +130,7 @@
                                       <p><span>{% trans "VAT for" %} {{pricing.vat_country}} ({{pricing.vat_percent}}%)</span></p>
                                     </div>
                                     <div class="col-md-6 col-sm-6 col-xs-6">
-                                      <p><span class="pull-right" > CHF</span></p>
+                                      <p><span class="pull-right" > {{pricing.vat_amount}} CHF</span></p>
                                     </div>
                                 </div>
                             </div>
@@ -203,5 +203,7 @@ aria-hidden="true" data-backdrop="static" data-keyboard="false">
     <!-- jQuery -->
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.3/jquery.validate.min.js"></script>
     <!-- Custom JS -->
+    {% compress js %}
     <script type="text/javascript" src="{% static 'matrixhosting/js/order.js' %}"></script> 
+    {% endcompress %}
 {% endblock js_extra %}

matrixhosting/templates/matrixhosting/order_details.html

@@ -1,6 +1,6 @@
 {% extends "matrixhosting/base.html" %}
 
-{% load static i18n %}
+{% load static compress i18n %}
 
 {% block title %} Request Details {% endblock %}
 
@@ -196,7 +196,7 @@
                         {% endif %}
                         </div>
                         <div class="col col-lg-6">
-                            <div class="float-right"><span class="text-4">{{request.session.pricing.total|floatformat}}</span><span class="text-2 p-1">CHF</span></div>
+                            <div class="float-right"><span id="total" class="text-4">{{request.session.pricing.total|floatformat}}</span><span class="text-2 p-1">CHF</span></div>
                         </div>
                     </div>
                     <hr class="mt-2 mx-n3">
@@ -269,7 +269,9 @@
             (function () {
                 window.stripeKey = "{{stripe_key}}";
                 window.current_lan = "{{LANGUAGE_CODE}}";
-                window.hasCreditcard = "{{show_cards}}";
+                {% if show_cards %}
+                    window.hasCreditcard = true;
+                {% endif %}
             })();
         </script>
     {%endif%}
@@ -278,5 +280,7 @@
     <script src="https://js.stripe.com/v3/"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.3/jquery.validate.min.js"></script>
     <!-- Custom JS -->
-    <script type="text/javascript" src="{% static 'matrixhosting/js/payment.js' %}"></script> 
+    {% compress js %}
+        <script type="text/javascript" src="{% static 'matrixhosting/js/payment.js' %}"></script> 
+    {% endcompress %}
 {% endblock js_extra %}

matrixhosting/templates/matrixhosting/order_success.html

@@ -50,7 +50,4 @@
 {% endblock %} 
 
 {% block js_extra %}
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.3/jquery.validate.min.js"></script>
-    <!-- Custom JS -->
-    <script type="text/javascript" src="{% static 'matrixhosting/js/order.js' %}"></script> 
 {% endblock js_extra %}

matrixhosting/urls.py

@@ -1,7 +1,7 @@
 from django.urls import path, include
 from django.conf import settings
 from django.conf.urls.static import static
-
+from wkhtmltopdf.views import PDFTemplateView
 from .views import *
 
 app_name = 'matrixhosting'

matrixhosting/utils.py

@@ -1,19 +0,0 @@
-import os
-from io import BytesIO
-from django.http import HttpResponse
-from django.template.loader import get_template
-from django.conf import settings
-
-from xhtml2pdf import pisa
-
-def render_to_pdf(template_src, context_dict={}):
-    template = get_template(template_src)
-    html  = template.render(context_dict)
-    result = BytesIO()
-    # pdf = pisa.pisaDocument(BytesIO(html.encode("ISO-8859-1")), result)
-    links = lambda uri, rel: os.path.join(settings.MEDIA_ROOT, uri.replace(settings.MEDIA_URL, ''))
-    pdf = pisa.pisaDocument(BytesIO(html.encode("ISO-8859-1")),dest=result)
-
-    if not pdf.err:
-        return HttpResponse(result.getvalue(), content_type='application/pdf')
-    return None

matrixhosting/views.py

@@ -17,6 +17,7 @@ from django.conf import settings
 from django.http import (
     HttpResponseRedirect, JsonResponse, HttpResponse
 )
+from wkhtmltopdf.views import PDFTemplateResponse
 from rest_framework import viewsets, permissions
 
 from uncloud_pay.models import PricingPlan
@@ -27,7 +28,7 @@ from uncloud_pay.selectors import get_billing_address_for_user, has_enough_balan
 import uncloud_pay.stripe as uncloud_stripe
 from .models import VMInstance
 from .serializers import *
-from .utils import render_to_pdf
+from .utils import *
 
 logger = logging.getLogger(__name__)
 
@@ -195,6 +196,7 @@ class OrderDetailsView(DetailView):
                     request.session.get('order'))
         if order:
             bill = Bill.create_next_bill_for_user_address(billing_address)
+            self.request.session['bill_id'] = bill.id
             payment= Payment.withdraw(owner=request.user, amount=total, notes=f"BILL #{bill.id}")
             if payment:
                 #Close the bill as the payment has been added
@@ -244,26 +246,40 @@ class OrderSuccessView(DetailView):
              'order': self.request.session.get('order'),
              'balance': get_balance_for_user(self.request.user)
         }
-        # if ('order' not in request.session):
-        #     return HttpResponseRedirect(reverse('matrix:index'))      
+        if ('order' not in request.session):
+            return HttpResponseRedirect(reverse('matrix:index'))      
         return render(request, self.template_name, context)
 
 class InvoiceDownloadView(View):
-    def get(self, request, *args, **kwargs):
-        data = {
-             'today': datetime.date.today(), 
-             'amount': 39.99,
-            'customer_name': 'Cooper Mann',
-            'order_id': 1233434,
-        }
-        pdf = render_to_pdf('matrixhosting/invoice.html', data)
-        if pdf:
-            response = HttpResponse(pdf, content_type='application/pdf')
-            content = "inline; filename=invoice.pdf"
-            content = "attachment; filename=invoice.pdf"
-            response['Content-Disposition'] = content
-            return response
-        return HttpResponse("Not found")
+    template = 'matrixhosting/invoice.html'
+    filename = 'invoice.pdf'
+
+    @method_decorator(login_required)
+    def dispatch(self, *args, **kwargs):
+        return super().dispatch(*args, **kwargs)
+
+    def get_context_data(self, **kwargs):
+        context = {'base_url': f'{self.request.scheme}://{self.request.get_host()}'}
+        bill = Bill.objects.get(id=self.request.session.get('bill_id'))
+        if bill:
+            context['bill'] = bill
+            context['vat_rate'] = str(round(bill.vat_rate * 100, 2)) + '%'
+            context['tax_amount'] = round(bill.vat_rate * bill.subtotal, 2)
+        return context
+
+    def get(self, request):
+        cmd_options = {
+                        'page_height': 240,
+                        'page_width':175,
+                        'orientation': 'Portrait',
+                        'header_spacing': 65,
+                        'header_line': False
+                    }
+        return PDFTemplateResponse(request=request,
+                                        template=self.template,
+                                        filename = self.filename,
+                                        cmd_options= cmd_options,
+                                        context= self.get_context_data())
     
     
 class Dashboard(ListView):

requirements.txt

@@ -7,8 +7,9 @@ fontawesome-free
 psycopg2
 ldap3
 django-allauth
+django-compressor
 xmltodict
-xhtml2pdf
+django-wkhtmltopdf
 parsedatetime
 # Follow are for creating graph models
 pyparsing

uncloud/settings.py

@@ -62,6 +62,8 @@ INSTALLED_APPS = [
     'django.contrib.sites',
     'django.contrib.staticfiles',
     'django_extensions',
+    'compressor',
+    'wkhtmltopdf',
     'rest_framework',
     'django_q',
     'notifications',
@@ -90,6 +92,7 @@ MIDDLEWARE = [
 ]
 
 ROOT_URLCONF = 'uncloud.urls'
+WKHTMLTOPDF_CMD = "/usr/local/bin/wkhtmltopdf"
 
 TEMPLATES = [
     {
@@ -188,11 +191,13 @@ USE_TZ = True
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/3.0/howto/static-files/
 STATIC_URL = '/static/'
-STATICFILES_DIRS = [ os.path.join(BASE_DIR, "static") ]
+STATIC_ROOT = os.path.join(BASE_DIR, "static")
 STATICFILES_FINDERS = [
     'django.contrib.staticfiles.finders.FileSystemFinder',
     'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+    'compressor.finders.CompressorFinder',
 ]
+COMPRESS_ENABLED = True
 
 #VM Deployment TEMPLATE
 GITLAB_SERVER = env('GITLAB_SERVER')

uncloud_pay/migrations/0025_auto_20210803_2118.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.2.4 on 2021-08-03 21:18
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_pay', '0024_auto_20210730_1441'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='billrecord',
+            name='bill',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='bill_records', to='uncloud_pay.bill'),
+        ),
+        migrations.AlterField(
+            model_name='payment',
+            name='type',
+            field=models.CharField(choices=[('withdraw', 'Withdraw Money'), ('deposit', 'Deposit Money')], default='deposit', max_length=256),
+        ),
+    ]

uncloud_pay/migrations/0026_remove_order_description.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.2.4 on 2021-08-03 21:40
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_pay', '0025_auto_20210803_2118'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='order',
+            name='description',
+        ),
+    ]

uncloud_pay/models.py

@@ -649,8 +649,6 @@ class Order(models.Model):
 
     customer = models.ForeignKey(StripeCustomer, on_delete=models.CASCADE, null=True)
 
-    description = models.TextField()
-
     product = models.ForeignKey(Product, blank=False, null=False, on_delete=models.CASCADE)
     config = models.JSONField()
 
@@ -807,6 +805,19 @@ class Order(models.Model):
     def is_one_time(self):
         return not self.is_recurring
     
+    @property
+    def description(self):
+        desc = self.product.description + "( "
+        config = json.loads(self.config)
+        if config and config["cores"]:
+            desc = f"{desc} {config['cores']} Cores,"
+        if config and config["memory"]:
+            desc = f"{desc} {config['memory']} RAM,"
+        if config and config["storage"]:
+            desc = f"{desc} {config['storage']} GB SSD,"
+        desc += " )"
+        return desc
+
     def replace_with(self, new_order):
         new_order.replaces = self
         self.ending_date = end_before(new_order.starting_date)
@@ -1011,6 +1022,11 @@ class Bill(models.Model):
         bill_records = BillRecord.objects.filter(bill=self)
         return sum([ br.sum for br in bill_records ])
 
+    @property
+    def subtotal(self):
+        bill_records = BillRecord.objects.filter(bill=self)
+        return sum([ br.subtotal for br in bill_records ])
+
     @property
     def vat_rate(self):
         return VATRate.get_vat_rate(self.billing_address, when=self.ending_date)
@@ -1114,7 +1130,7 @@ class BillRecord(models.Model):
     Entry of a bill, dynamically generated from an order.
     """
 
-    bill = models.ForeignKey(Bill, on_delete=models.CASCADE)
+    bill = models.ForeignKey(Bill, on_delete=models.CASCADE, related_name='bill_records')
     order = models.ForeignKey(Order, on_delete=models.CASCADE)
 
     creation_date = models.DateTimeField(auto_now_add=True)
@@ -1142,6 +1158,12 @@ class BillRecord(models.Model):
         else:
             return self.order.one_time_price
 
+    @property
+    def description(self):
+        if self.order:
+            return self.order.description
+        return ''
+
     @property
     def price(self):
         if self.is_recurring_record:
@@ -1149,6 +1171,18 @@ class BillRecord(models.Model):
         else:
             return self.order.one_time_price
     
+    @property
+    def subtotal(self):
+        billing_address_ins = self.order.billing_address
+        vat_rate = VATRate.get_vat_rate(billing_address_ins)
+        vat_validation_status = "verified" if billing_address_ins.vat_number_validated_on and billing_address_ins.vat_number_verified else False
+        config = json.loads(self.order.config)
+        pricing = uncloud_pay.utils.get_order_total_with_vat(
+            config["cores"], config["memory"], config["storage"], self.order.pricing_plan.name,
+            vat_rate=vat_rate * 100, vat_validation_status = vat_validation_status
+        )
+        return pricing['subtotal_after_discount']
+
     def __str__(self):
         if self.is_recurring_record:
             bill_line =  f"{self.starting_date} - {self.ending_date}: {self.quantity} x {self.order}"

uncloud_pay/utils.py

@@ -124,10 +124,11 @@ def apply_vat_discount(subtotal, pricing_plan, vat_rate=False, vat_validation_st
         'amount_with_vat': round(float(discount_amount_with_vat), 2)
     }
     subtotal_after_discount = subtotal - discount["amount"]
+    vat_amount = round(vat_percent * 0.01 * subtotal_after_discount, 2)
     price_after_discount_with_vat = round((subtotal - discount['amount']) * (1 + vat_percent * 0.01), 2)
 
     return (subtotal, round(float(subtotal_after_discount), 2), price_after_discount_with_vat, 
-            round(float(vat), 2), vat_percent, discount)
+            round(float(vat), 2), vat_percent, vat_amount, discount)
 
 
 def get_order_total_with_vat(cores, memory, storage,
@@ -149,13 +150,14 @@ def get_order_total_with_vat(cores, memory, storage,
         (decimal.Decimal(memory) * pricing.ram_unit_price) +
         (decimal.Decimal(storage) * (pricing.storage_unit_price)) 
     )
-    subtotal, subtotal_after_discount, price_after_discount_with_vat, vat, vat_percent, discount = \
+    subtotal, subtotal_after_discount, price_after_discount_with_vat, vat, vat_percent, vat_amount, discount = \
                                     apply_vat_discount(subtotal, pricing, vat_rate, vat_validation_status)
     return {
             "name": pricing.name,
             "subtotal": subtotal, 
             "discount": discount, 
             "vat": vat, "vat_percent": vat_percent,
+            'vat_amount': vat_amount,
             "vat_validation_status": vat_validation_status,
             "subtotal_after_discount": subtotal_after_discount,
             "total": price_after_discount_with_vat