refactor sale payment tasks

sales/tasks/cleanup.py

@@ -3,6 +3,7 @@ from huey import crontab
 from huey.contrib.djhuey import periodic_task
 from sales.models import ItemSale
 
+
 logger = getLogger('django.server')
 
 @periodic_task(crontab(minute='0', hour='*/12'))

sales/tasks/notifications.py

@@ -1,4 +1,4 @@
-import logging
+from logging import getLogger
 from huey import crontab
 from huey.contrib.djhuey import periodic_task
 from core.helpers.email_template import EmailTemplate
@@ -6,7 +6,7 @@ from core.models import UserShippingAddress
 from sales.models import ItemSale
 
 
-logger = logging.getLogger('django.server')
+logger = getLogger('django.server')
 
 @periodic_task(crontab(minute='*'))
 def notify_buyer_of_pending_sale():
@@ -52,3 +52,17 @@ def notify_buyer_of_shipment_confirmation():
         logger.info(f'[INFO] Buyer shipping info wiped for sale #{sale.id}')
         sale.buyer_notified_of_shipment = True
         sale.save()
+
+@periodic_task(crontab(minute='*'))
+def notify_seller_of_sale_completed():
+    item_sales = ItemSale.objects.filter(seller_paid=True).filter(seller_notified_of_payout=False)
+    for sale in item_sales:
+        logger.info(f'[INFO] Sale completed for #{sale.id}, notifying seller along with payout details.')
+        email_template = EmailTemplate(
+            item=sale,
+            scenario='sale_completed',
+            role='seller'
+        )
+        email_template.send()
+        sale.seller_notified_of_payout = True
+        sale.save()

sales/tasks/payments.py

@@ -4,44 +4,54 @@ from huey import crontab
 from huey.contrib.djhuey import periodic_task
 from django.conf import settings
 from django.core.cache import cache
-from core.monero import AuctionWallet
+from core.monero import AuctionWallet, AuctionDaemon
 from sales.models import ItemSale
 
 
 logger = logging.getLogger('django.server')
 
-@periodic_task(crontab(minute='*/3'))
-def poll_for_buyer_escrow_payments():
-    aw = AuctionWallet()
-    if aw.connected is False:
-        logging.error('[ERROR] Auction wallet is not connected. Quitting.')
+def connect_rpc(rpc_type):
+    if rpc_type == "daemon":
+        rpc = AuctionDaemon()
+    elif rpc_type == "wallet":
+        rpc = AuctionWallet()
+    else:
+        logger.error('[ERROR] Invalid RPC type specified. Use "daemon" or "wallet"')
+        return False
+    if rpc.connected is False:
+        logging.error(f'[ERROR] Auction {rpc_type} is not connected. Stopping task.')
         return False
+    return rpc
 
+@periodic_task(crontab(minute='*/2'))
+def poll_for_buyer_escrow_payments():
+    wallet_rpc = connect_rpc("wallet")
     item_sales = ItemSale.objects.filter(payment_received=False)
     for sale in item_sales:
         logger.info(f'[INFO] Polling escrow address #{sale.escrow_account_index} for sale #{sale.id} for new funds.')
-        sale_account = aw.wallet.accounts[sale.escrow_account_index]
-        unlocked = sale_account.balances()[1]
-        sale.received_payment_xmr = unlocked
-        if unlocked >= Decimal(str(sale.expected_payment_xmr)):
-            logger.info(f'[INFO] Found payment of {sale.received_payment_xmr} XMR for sale #{sale.id}.')
+        sale_account = wallet_rpc.wallet.accounts[sale.escrow_account_index]
+        tx_in = sale_account.incoming()
+        balances = sale_account.balances()
+        sale.received_payment_xmr = balances[0]
+        if balances[0] >= Decimal(str(sale.expected_payment_xmr)) and tx_in:
+            logger.info(f'[INFO] Found incoming transaction {tx_in[0].transaction} of {sale.received_payment_xmr} XMR for sale #{sale.id}.')
+            if tx_in[0].transaction.confirmations >= settings.BLOCK_CONFIRMATIONS_RCV:
+                logger.info(f'[INFO] The incoming transaction has {settings.BLOCK_CONFIRMATIONS_RCV} confirmations and enough funds. Marking payment received.')
                 sale.payment_received = True
+            else:
+                logger.info(f'[INFO] The incoming transaction only has {tx_in[0].transaction.confirmations} confirmations. Not enough to proceed.')
 
         sale.save()
 
-@periodic_task(crontab(minute='*/3'))
+@periodic_task(crontab(minute='*/4'))
 def pay_sellers_on_sold_items():
-    aw = AuctionWallet()
-    if aw.connected is False:
-        logging.error('[ERROR] Auction wallet is not connected. Quitting.')
-        return False
-
+    wallet_rpc = connect_rpc("wallet")
     item_sales = ItemSale.objects.filter(item_received=True, payment_received=True).filter(seller_paid=False)
     for sale in item_sales:
         # Take platform fees from the sale - the 50:50 split between buyer/seller
         sale_total = sale.agreed_price_xmr - sale.platform_fee_xmr
-        sale_account = aw.wallet.accounts[sale.escrow_account_index]
-
+        sale_account = wallet_rpc.wallet.accounts[sale.escrow_account_index]
+        logger.info(f'[INFO] Seller needs to be paid for sale #{sale.id}. Found balances of {sale_account.balances()} in account #{sale.escrow_account_index}.')
         if sale_account.balances()[1] >= Decimal(str(sale.agreed_price_xmr)):
             try:
                 # Construct a transaction so we can get current fee and subtract from the total
@@ -64,31 +74,17 @@ def pay_sellers_on_sold_items():
         else:
             logger.warning(f'[WARNING] Not enough unlocked funds available in account #{sale.escrow_account_index} for sale #{sale.id}.')
 
-        if sale.seller_paid and sale.seller_notified_of_payout is False:
-            email_template = EmailTemplate(
-                item=sale,
-                scenario='sale_completed',
-                role='seller'
-            )
-            sent = email_template.send()
-            sale.seller_notified_of_payout = True
-            sale.save()
-
 @periodic_task(crontab(minute='*/30'))
 def pay_platform_on_sold_items():
-    aw = AuctionWallet()
-    if aw.connected is False:
-        logging.error('[ERROR] Auction wallet is not connected. Quitting.')
-        return False
-
+    wallet_rpc = connect_rpc("wallet")
     aof = settings.PLATFORM_WALLET_ADDRESS
     if aof is None:
-        aof = str(aw.wallet.accounts[0].address())
+        aof = str(wallet_rpc.wallet.accounts[0].address())
 
     item_sales = ItemSale.objects.filter(escrow_complete=True, seller_paid=True, item_received=True).filter(platform_paid=False)
     for sale in item_sales:
         logger.info(f'[INFO] Paying platform fees for sale #{sale.id} to wallet {aof}.')
-        sale_account = aw.wallet.accounts[sale.escrow_account_index]
+        sale_account = wallet_rpc.wallet.accounts[sale.escrow_account_index]
         bal = sale_account.balances()[1]
         if bal >= 0:
             try:
@@ -114,16 +110,12 @@ def refund_buyers_on_cancelled_sales() -> bool:
 
     :rtype: bool
     """
-    aw = AuctionWallet()
-    if aw.connected is False:
-        logging.error('[ERROR] Auction wallet is not connected. Quitting.')
-        return False
-
+    wallet_rpc = connect_rpc("wallet")
     item_sales = ItemSale.objects.filter(sale_cancelled=True, payment_refunded=False)
     for sale in item_sales:
         logger.info(f'[INFO] Refunding any sent funds from the buyer for sale #{sale.id}.')
         sale_total = sale.agreed_price_xmr - sale.platform_fee_xmr
-        sale_account = aw.wallet.accounts[sale.escrow_account_index]
+        sale_account = wallet_rpc.wallet.accounts[sale.escrow_account_index]
         balances = sale_account.balances()
         logger.info(f'[INFO] Found balances of {balances} XMR for sale #{sale.id}.')
         if balances[0] != balances[1]:

web/templates/sales/get_sale/item_received.html

@@ -15,6 +15,7 @@
   <p class="sale-info">The buyer confirmed receipt of their shipment which means things worked out. It's time for you to get paid!</p>
   <p class="sale-info">Your payout address provided during item creation will be paid the accepted bid amount out of the escrow wallet. <em>Please note, transaction fees will come out of the payout total if there are no platform fees!</em></p>
   <hr>
+  <p class="sale-info"><strong>Payout Sent</strong>:  {{ sale.seller_paid }}</p>
   <p class="sale-info"><strong>Accepted Bid (XMR)</strong>:  {{ sale.bid.bid_price_xmr }}</p>
   <p class="sale-info"><strong>Platform Fee (XMR)</strong>:  {{ sale.platform_fee_xmr }}</p>
   <p class="sale-info"><strong>Network Fee (XMR)</strong>:  {{ sale.network_fee_xmr }}</p>

xmrauctions/settings.py

@@ -27,6 +27,7 @@ DEBUG = os.environ.get('DEBUG', False)
 ALLOWED_HOSTS = str(os.environ['ALLOWED_HOSTS']).split(',')
 ESCROW_PERIOD_DAYS = os.environ.get('ESCROW_PERIOD_DAYS', 30)
 PLATFORM_FEE_PERCENT = os.environ.get('PLATFORM_FEE_PERCENT', 0)
+BLOCK_CONFIRMATIONS_RCV = os.environ.get('BLOCK_CONFIRMATIONS_RCV', 3)
 
 
 # Application definition