dodati payment kodovi, generisanje kodova, pdf view,promena payment page

backend/core/admin.py

@@ -1,8 +1,11 @@
 from django.contrib import admin
-from .models import Document, DocumentSegment, Organization, Risk, Control, DocumentTemplate, DocumentRiskControl
+from .models import Document, DocumentSegment, Organization, Risk, Control, DocumentTemplate, DocumentRiskControl, PaymentCode
 from django.urls import reverse
 from django.utils.html import format_html
-
+from .utils import generate_payment_code
+from django.urls import path
+from django.shortcuts import render, redirect
+from .forms import GenerateCodesForm
 
 class DocumentSegmentInline(admin.StackedInline):
     model = DocumentSegment
@@ -41,6 +44,37 @@ class ControlAdmin(admin.ModelAdmin):
 class DocumentRiskControlAdmin(admin.ModelAdmin):
     list_display = ('document', 'risk', 'control', 'weight','likelihood')
 
+class PaymentCodeAdmin(admin.ModelAdmin):
+
+    list_display = ('code', 'created_at', 'used', 'company', 'used_at')
+    change_list_template = "admin/paymentcode_changelist.html"
+
+    def get_urls(self):
+        urls = super().get_urls()
+        custom_urls = [
+            path('generate-codes/', self.admin_site.admin_view(self.generate_codes_view), name='generate-codes'),
+        ]
+        return custom_urls + urls
+
+    def generate_codes_view(self, request):
+        if request.method == 'POST':
+            form = GenerateCodesForm(request.POST)
+            if form.is_valid():
+                count = form.cleaned_data['count']
+                created = 0
+                for _ in range(count):
+                    while True:
+                        code = generate_payment_code()
+                        if not PaymentCode.objects.filter(code=code).exists():
+                            PaymentCode.objects.create(code=code)
+                            created += 1
+                            break
+                self.message_user(request, f"{created} codes generated.")
+                return redirect('..')
+        else:
+            form = GenerateCodesForm()
+        return render(request, 'admin/generate_codes.html', {'form': form})
+    
 
 admin.site.register(Document, DocumentAdmin)
 admin.site.register(Organization, OrganizationAdmin)
@@ -48,3 +82,4 @@ admin.site.register(Risk ,RiskAdmin)
 admin.site.register(Control, ControlAdmin)
 admin.site.register(DocumentTemplate, DocumentTemplateAdmin)
 admin.site.register(DocumentRiskControl, DocumentRiskControlAdmin)
+admin.site.register(PaymentCode, PaymentCodeAdmin)

backend/core/forms.py

@@ -47,3 +47,7 @@ class OrganizationForm(forms.ModelForm):
         cleaned_data['sensitive_data_types'] = types
 
         return cleaned_data
+
+
+class GenerateCodesForm(forms.Form):
+    count = forms.IntegerField(label="How many codes to generate?", min_value=1, max_value=1000)

backend/core/migrations/0016_paymentcode.py

@@ -0,0 +1,25 @@
+# Generated by Django 5.1.3 on 2025-06-19 18:42
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0015_control_description_control_safeguard_id'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PaymentCode',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('code', models.CharField(max_length=10, unique=True)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('used', models.BooleanField(default=False)),
+                ('used_at', models.DateTimeField(blank=True, null=True)),
+                ('company', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='core.organization')),
+            ],
+        ),
+    ]

backend/core/models.py

@@ -171,4 +171,15 @@ class DocumentRiskControl(models.Model):
     likelihood = models.IntegerField(null=True, blank=True)
 
     class Meta:
-        unique_together = ('document', 'risk', 'control')
+        unique_together = ('document', 'risk', 'control')
+
+
+class PaymentCode(models.Model):
+    code = models.CharField(max_length=10, unique=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    used = models.BooleanField(default=False)
+    used_at = models.DateTimeField(null=True, blank=True)
+    company = models.ForeignKey(Organization, null=True, blank=True, on_delete=models.SET_NULL)
+
+    def __str__(self):
+        return (f"{self.code} - {'Used' if self.used else 'Available'}")

backend/core/templates/admin/generate_codes.html

@@ -0,0 +1,11 @@
+{% extends "admin/base_site.html" %}
+
+{% block content %}
+  <div id="content-main">
+    <h2>Generate Payment Codes</h2>
+    <form method="post">{% csrf_token %}
+      {{ form.as_p }}
+      <input type="submit" name="apply" value="Generate" class="default">
+    </form>
+  </div>
+{% endblock %}

backend/core/templates/admin/paymentcode_changelist.html

@@ -0,0 +1,14 @@
+{% extends "admin/change_list.html" %}
+{% block object-tools %}
+<div style="padding: 12px 0; display: flex; gap: 8px;">
+    <div style="padding: 12px 0;">
+        <a href="{% url 'admin:generate-codes' %}" class="button">Generate Payment Codes</a>
+    </div>
+    <div style="padding: 12px 0;">
+        <a href="{% url 'core:payment_codes_pdf' %}?filter_by=all" class="button">All (PDF)</a>
+        <a href="{% url 'core:payment_codes_pdf' %}?filter_by=used" class="button">Used (PDF)</a>
+        <a href="{% url 'core:payment_codes_pdf' %}?filter_by=available" class="button">Unused (PDF)</a>
+    </div>
+</div>
+{{ block.super }}
+{% endblock %}

backend/core/templates/index.html

@@ -5,11 +5,6 @@
 
 
  <main class="flex-grow">
-    <section id="cyber-measures" class="bg-secondary">
-        <div class="text-center">
-          <a class="text-accent font-semibold tracking-wider uppercase text-sm" href="{% url 'core:no_confidential_data' %}">No confidential data</a>
-      </div>
-    </section>
 
     <!-- WhitepaperSection -->
     <section class="bg-gradient-to-br from-primary to-teal-700 text-light-text py-20 md:py-32 relative">

backend/core/templates/payment.html

@@ -1,19 +1,33 @@
 {% extends 'base.html' %}
-
 {% block content %}
-<section class="py-16 bg-secondary sm:py-24 p-body-full">
-  <div class="max-w-lg w-full mx-auto text-center shadow-lg border border-success rounded-xl p-8 bg-white">
-    <h2 class="text-3xl font-extrabold mb-4 text-success">Payment</h2>
-    <p class="mb-8 text-gray-700 text-lg">
-      Click the button below to securely pay and access your document.
-    </p>
-    <form method="post">
+<section class="py-24 bg-gradient-to-br from-teal-100 to-primary flex items-center justify-center">
+  <div class="max-w-md w-full mx-auto text-center shadow-2xl border border-accent rounded-2xl p-4 bg-white/90 backdrop-blur">
+    <h2 class="text-3xl font-extrabold mb-6 text-accent">Payment</h2>
+    <p class="text-lg text-gray-700 mb-6">Please enter your payment code to proceed to document.</p>
+    
+    {% if success %}
+      <p class="text-green-600 font-semibold mb-4">{{ success }}</p>
+    {% endif %}
+    <form method="post" class="space-y-6">
       {% csrf_token %}
-      <button type="submit" class="nav-link-desktop bg-transparent border-2 border-accent text-accent hover:bg-accent hover:text-primary font-semibold py-3 px-8 rounded-lg text-lg transition-all duration-300 ease-in-out">
-        Pay & Check Your document
+      <input 
+        type="text" 
+        name="code" 
+        maxlength="10" 
+        class="w-full px-4 py-3 border-2 border-accent rounded-lg focus:outline-none focus:ring-2 focus:ring-accent text-lg tracking-widest text-center font-mono mb-2"
+        placeholder="Enter your code"
+        required
+      >
+      <button 
+        type="submit" 
+        class="w-full bg-accent text-primary hover:bg-yellow-400 font-bold py-3 px-8 rounded-lg shadow-lg text-lg transition-all duration-200 ease-in-out transform hover:scale-105"
+      >
+        Enter Code
       </button>
     </form>
+    {% if error %}
+      <p class="text-red-600 mt-6 font-semibold text-lg">{{ error }}</p>
+    {% endif %}
   </div>
 </section>
-
 {% endblock %}

backend/core/templates/payment_code_report.html

@@ -0,0 +1,39 @@
+{% load static %}
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>PDF payment report</title>
+    <link rel="stylesheet" href="{% static 'css/document.css' %}">
+</head>
+<body>
+    <h1>Payment Codes Report</h1>
+    <table>
+        <thead>
+            <tr>
+                <th>Code</th>
+                <th>Created At</th>
+                <th>Used</th>
+                <th>Company</th>
+                <th>Used At</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for code in codes %}
+            <tr>
+                <td>{{ code.code }}</td>
+                <td>{{ code.created_at }}</td>
+                <td>{{ code.used|yesno:"Yes,No" }}</td>
+                {% if code.company %}
+                    <td>{{ code.company.name }}</td>
+                {% else %}
+                    <td>-</td>
+                {% endif %}
+                <td>{{ code.used_at|default:"-" }}</td>
+            </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+</body>
+</html>

backend/core/urls.py

@@ -17,4 +17,7 @@ urlpatterns = [
     path('no_confidential_data/', v.no_confidential_data, name='no_confidential_data'),
     path('downloads/risklet_example_document.pdf', v.download_example_pdf, name='download_example_pdf'),
 
+    #admin urls
+    path('admin/payment-codes-pdf/', v.payment_codes_pdf_view, name='payment_codes_pdf'),
+
 ]

backend/core/utils.py

@@ -12,7 +12,7 @@ import matplotlib.pyplot as plt
 from django.contrib.staticfiles.finders import find
 import matplotlib.image as mpimg
 site_domain = settings.SITE_DOMAIN
-
+import random
 
 
 
@@ -342,3 +342,7 @@ def generate_residual_risk_graph(risks_with_controls):
     plt.close()
 
     return base64.b64encode(image_png).decode("utf-8")
+
+def generate_payment_code(length=6):
+    chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789'
+    return ''.join(random.choices(chars, k=length))

backend/core/views.py

@@ -3,7 +3,7 @@ import yaml
 
 from django.shortcuts import render, redirect , get_object_or_404
 from .forms import OrganizationForm
-from .models import Organization,Document, DocumentTemplate
+from .models import Organization,Document, DocumentTemplate, PaymentCode
 from backend.accounts.utils import send_confirmation_email, send_document_email
 from django.contrib.admin.views.decorators import staff_member_required
 from .utils import generate_pdf, generate_risk_graph, generate_residual_risk_graph
@@ -11,11 +11,13 @@ from .tables import risk_matrix_table ,get_risk_table, get_safeguard_summary_tab
 from django.conf import settings
 site_domain = settings.SITE_DOMAIN
 from .processors import render_template
-from django.http import JsonResponse, FileResponse, Http404
+from django.http import JsonResponse, FileResponse, Http404, HttpResponse
 from django.core.exceptions import ValidationError
 from django.core.validators import validate_email
 import os
-
+from django.utils import timezone
+from weasyprint import HTML
+from django.template.loader import render_to_string
 
 
 # @login_required
@@ -112,16 +114,28 @@ def pdf_view(request, document_id):
     return generate_pdf(document)
 
 def payment_page(request):
-    email = request.GET.get("email")
-    organization = get_object_or_404(Organization, email=email)
-    document = get_object_or_404(Document, organization=organization)
-    
-    if request.method == "POST":
-        pdf_url = f"{site_domain}/pdf/{document.id}/"
-        send_document_email(email, pdf_url, document)  
-        return redirect(pdf_url)
-    
-    return render(request, "payment.html", {"email": email})
+    error = None
+    email = request.GET.get('email')
+    if request.method == 'POST':
+        import re
+        code = re.sub(r'\s+', '', request.POST.get('code', '')).upper()[:10]
+        try:
+            payment_code = PaymentCode.objects.get(code=code)
+            if payment_code.used:
+                error = "CODE INVALID"
+            else:
+                org = Organization.objects.filter(email__iexact=email).first()
+                payment_code.used = True
+                payment_code.used_at = timezone.now()
+                payment_code.company = org
+                payment_code.save()
+                document = Document.objects.get(organization = org)
+                url = f"{site_domain}/pdf/{document.id}/"
+                send_document_email(email, url, document)
+                return redirect(url)
+        except PaymentCode.DoesNotExist:
+            error = "CODE INVALID"
+    return render(request, 'payment.html', {'error': error})
 
 def no_confidential_data(request):
     return render(request, "no_confidential_data.html")
@@ -131,4 +145,20 @@ def download_example_pdf(request):
     pdf_path = os.path.join(settings.BASE_DIR, 'backend/core/static/pdf/risklet_example_document.pdf')
     if not os.path.exists(pdf_path):
         raise Http404("File not found.")
-    return FileResponse(open(pdf_path, 'rb'), as_attachment=True, filename='risklet_example_document.pdf')
+    return FileResponse(open(pdf_path, 'rb'), as_attachment=True, filename='risklet_example_document.pdf')
+
+
+@staff_member_required
+def payment_codes_pdf_view(request):
+    filter_by = request.GET.get('filter_by', 'all')
+    if filter_by == 'used':
+        codes = PaymentCode.objects.filter(used=True)
+    elif filter_by == 'available':
+        codes = PaymentCode.objects.filter(used=False)
+    else:
+        codes = PaymentCode.objects.all()
+    html_string = render_to_string('payment_code_report.html', {'codes': codes})
+    pdf_content = HTML(string=html_string, base_url=request.build_absolute_uri('/')).write_pdf()
+    response = HttpResponse(pdf_content, content_type='application/pdf')
+    response['Content-Disposition'] = f'inline; filename=payment_codes_{timezone.now().strftime("%Y%m%d_%H%M%S")}.pdf'
+    return response

backend/settings.py

@@ -37,8 +37,8 @@ DEBUG = config('DEBUG', default=False, cast=bool)
 
 ALLOWED_HOSTS = config('ALLOWED_HOSTS', default=[], cast=Csv())
 
-SITE_DOMAIN = "http://risklet.kompanijabroj4.com"
-#SITE_DOMAIN = "http://127.0.0.1:8000"
+#SITE_DOMAIN = "http://risklet.kompanijabroj4.com"
+SITE_DOMAIN = "http://127.0.0.1:8000"
 
 # Application definition