from decimal import Decimal from huey import crontab from huey.contrib.djhuey import periodic_task from django.conf import settings from django.core.mail import send_mail from django.template.loader import render_to_string from django.urls import reverse from core.monero import AuctionWallet from core.models import UserShippingAddress from sales.models import ItemSale class EmailTemplate: def __init__(self, item, scenario, role): context = { 'sale': item, 'site_name': settings.SITE_NAME, 'site_url': settings.SITE_URL, 'sale_path': reverse('get_sale', args=[item.bid.id]), 'shipping_address': UserShippingAddress.objects.filter( user=item.bid.bidder ).first() } subject = render_to_string( template_name=f'sales/notify/{scenario}/{role}/subject.txt', context=context, request=None ) body = render_to_string( template_name=f'sales/notify/{scenario}/{role}/body.txt', context=context, request=None ) self.subject = ''.join(subject.splitlines()) self.body = body @periodic_task(crontab(minute='*/3')) def notify_buyer_of_pending_sale(): item_sales = ItemSale.objects.filter(buyer_notified=False) for sale in item_sales: email_template = EmailTemplate( item=sale, scenario='sale_created', role='buyer' ) sent = send_mail( email_template.subject, email_template.body, settings.DEFAULT_FROM_EMAIL, [sale.bid.bidder.email] ) if sent == 1: sale.buyer_notified = True sale.save() return True else: return False @periodic_task(crontab(minute='*/2')) def notify_seller_of_funds_received(): item_sales = ItemSale.objects.filter(seller_notified=False, buyer_notified=True, payment_received=True) for sale in item_sales: email_template = EmailTemplate( item=sale, scenario='funds_received', role='seller' ) sent = send_mail( email_template.subject, email_template.body, settings.DEFAULT_FROM_EMAIL, [sale.item.owner.email] ) if sent == 1: sale.seller_notified = True sale.save() return True else: return False @periodic_task(crontab(minute='*/10')) def poll_for_buyer_escrow_payments(): aw = AuctionWallet() item_sales = ItemSale.objects.filter(payment_received=False) for sale in item_sales: sale_account = aw.wallet.accounts[sale.escrow_account_index] sale.received_payment_xmr = sale_account.balance() if sale_account.balance() >= Decimal(str(sale.expected_payment_xmr)): sale.payment_received = True sale.save() if settings.DEBUG: print('[+] Sale: #{} - Balance: {} - Payment Received: {}'.format( sale.id, sale.received_payment_xmr, sale.payment_received ))