from openai import OpenAI from twilio.rest import Client from nexusmart import settings from django.core.mail import EmailMessage from django.contrib.auth import get_user_model from django.template.loader import render_to_string from .models import Cart, CartItem from weasyprint import HTML from weasyprint.text.fonts import FontConfiguration import datetime User = get_user_model() def _get_customer_profile(user): customer_profile, _ = User.objects.get_or_create(username=user.username) return customer_profile def send_customer_reply_notification(ticket, reply_text, channel='email', attachment=None): profile = getattr(ticket.user, 'profile', None) customer_phone = profile.phone if profile and profile.phone else None attachment_html = "" if attachment: attachment_url = attachment.url # Full media URL (e.g., /media/ticket_attachments/file.pdf) attachment_html = f"""

📎 Attachment: Download File

""" context = { 'ticket': ticket, 'reply_text': reply_text, 'customer_name': ticket.user.username, 'attachment_html': attachment_html, } # Email with attachment link subject = f"Update on Your Support Ticket #{ticket.id} - Banshix" html_message = render_to_string('shop/ticket_reply_email.html', context) email = EmailMessage( subject=subject, body=html_message, from_email=settings.DEFAULT_FROM_EMAIL, to=[ticket.user.email], ) email.content_subtype = "html" email.send(fail_silently=False) # WhatsApp (text only - no file attachment via Twilio in this simple setup) if channel == 'whatsapp' and customer_phone: try: client = Client(settings.TWILIO_ACCOUNT_SID, settings.TWILIO_AUTH_TOKEN) whatsapp_body = f""" *Banshix Support Update - Ticket #{ticket.id}* {reply_text} { 'Attachment available in your email.' if attachment else '' } Status: {ticket.status} """.strip() client.messages.create( body=whatsapp_body, from_=settings.TWILIO_WHATSAPP_NUMBER, to=f"whatsapp:{customer_phone}" ) except Exception as e: print(f"WhatsApp failed: {e}") def send_offer_submission_notification(offer_request): subject = f"New Offer Submitted for {offer_request.product.name}" context = { 'offer': offer_request, 'support_email': getattr(settings, 'SUPPORT_EMAIL', settings.DEFAULT_FROM_EMAIL), 'offer_link': f"http://127.0.0.1:8000/manage/admin/offers/" } html_message = render_to_string('shop/email_offer_submission.html', context) email = EmailMessage( subject=subject, body=html_message, from_email=settings.DEFAULT_FROM_EMAIL, to=[getattr(settings, 'SUPPORT_EMAIL', settings.DEFAULT_FROM_EMAIL)], ) email.content_subtype = 'html' try: email.send(fail_silently=False) except Exception as e: print(f"Failed to send offer submission notification: {e}") def send_offer_status_update_notification(offer_request): subject = f"Update on Your Offer for {offer_request.product.name}" context = { 'offer': offer_request, 'status_label': offer_request.status, } html_message = render_to_string('shop/email_offer_status_update.html', context) email = EmailMessage( subject=subject, body=html_message, from_email=settings.DEFAULT_FROM_EMAIL, to=[offer_request.user.email], ) email.content_subtype = 'html' try: email.send(fail_silently=False) except Exception as e: print(f"Failed to send offer status update notification: {e}") def send_staff_customer_reply_notification(ticket, message): try: subject = f"New Customer Reply on Ticket #{ticket.id}" body = f"Customer {ticket.user.username} replied:\n\n{message}\n\nView ticket: http://127.0.0.1:8000/admin/shop/ticket/{ticket.id}/" email = EmailMessage(subject, body, settings.DEFAULT_FROM_EMAIL, [settings.SUPPORT_EMAIL]) email.send(fail_silently=True) except Exception as e: print(f"Staff notification failed: {e}") def send_order_confirmation_email(request, order): """Send order confirmation email with WeasyPrint-generated PDF invoice attached""" items = order.items.all() # Prepare context for the invoice template context = { 'order': order, 'items': items, 'user': request.user, 'today': datetime.date.today(), } # Render HTML string from template html_string = render_to_string('shop/invoice.html', context) # Generate PDF using WeasyPrint font_config = FontConfiguration() html = HTML(string=html_string, base_url=request.build_absolute_uri('/')) try: pdf_bytes = html.write_pdf(font_config=font_config) except Exception as e: # Log error and silently fail (don't break checkout flow) print(f"PDF generation failed: {e}") return # Email setup subject = f'Order Confirmation #{order.id} - Banshix' body = render_to_string('shop/email_order_confirmation.html', {'order': order}) email = EmailMessage( subject=subject, body=body, from_email=settings.DEFAULT_FROM_EMAIL, to=[request.user.email], ) email.content_subtype = "html" # Attach the PDF email.attach( filename=f'invoice_{order.id}.pdf', content=pdf_bytes, mimetype='application/pdf' ) # Send email try: email.send(fail_silently=False) print(f"Order confirmation email sent successfully for Order #{order.id}") except Exception as e: print(f"Failed to send email for Order #{order.id}: {e}") # In production, you should log this properly instead of printing def sync_cart_to_db(request): if not request.user.is_authenticated: return session_cart = request.session.get('cart', {}) cart, _ = Cart.objects.get_or_create(user=request.user) for pid, item in session_cart.items(): CartItem.objects.update_or_create( cart=cart, product_id=pid, defaults={'quantity': item['quantity']} ) from django.conf import settings def get_currency(request): """Get current currency from session or default""" return request.session.get('currency', settings.DEFAULT_CURRENCY) def set_currency(request, currency): """Set currency in session""" if currency in settings.CURRENCIES: request.session['currency'] = currency request.session.modified = True def convert_price(price, request=None, to_currency=None): """Convert price to current user currency""" if request: to_currency = request.session.get('currency', 'USD') if to_currency == 'USD': return round(price, 2) rate = settings.CURRENCIES[to_currency]['rate'] return round(price * rate, 2) def get_currency_symbol(currency=None, request=None): if request: currency = get_currency(request) return settings.CURRENCIES.get(currency, settings.CURRENCIES['USD'])['symbol'] from decimal import Decimal, ROUND_UP, ROUND_DOWN def split_amount_into_chunks(total_amount, max_limit, decimals=2): """ Split `total_amount` into the minimal number of chunks such that each chunk is <= max_limit. Returns a list of Decimal chunk amounts (rounded to `decimals`). Example: total=8000000, max_limit=7390000 -> [4000000.00, 4000000.00] """ total = Decimal(str(total_amount)) max_limit = Decimal(str(max_limit)) if total <= max_limit: quant = Decimal('1').scaleb(-decimals) return [total.quantize(quant)] # compute needed chunks chunks_needed = int((total / max_limit).to_integral_value(rounding=ROUND_UP)) # base chunk amount (floor to decimals) quant = Decimal('1').scaleb(-decimals) base_amount = (total / Decimal(chunks_needed)).quantize(quant, rounding=ROUND_DOWN) chunks = [base_amount for _ in range(chunks_needed)] # distribute remainder to the last chunk remainder = total - sum(chunks) if remainder > 0: chunks[-1] = (chunks[-1] + remainder).quantize(quant) return chunks