refactor email send class to account for item tasks - add cleanup of old items

core/helpers/email_template.py

@@ -2,23 +2,41 @@ 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 items.models import Item
+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.id])
-        }
+        if isinstance(item, ItemSale):
+            context = {
+                'sale': item,
+                'sale_path': reverse('get_sale', args=[item.id])
+            }
+            tpl_path = 'sales'
+            if role == 'buyer':
+                self.to_address = item.bid.bidder.email
+            else:
+                self.to_address = item.item.owner.email
+        elif isinstance(item, Item):
+            context = {
+                'item': item,
+                'item_path': reverse('get_item', args=[item.id])
+            }
+            tpl_path = 'items'
+            self.to_address = item.owner.email
+
+        context['site_name'] = settings.SITE_NAME
+        context['site_url'] = settings.SITE_URL
+        context['escrow_period'] = settings.ESCROW_PERIOD_DAYS
+
         subject = render_to_string(
-            template_name=f'sales/notify/{scenario}/{role}/subject.txt',
+            template_name=f'{tpl_path}/notify/{scenario}/{role}/subject.txt',
             context=context,
             request=None
         )
         body = render_to_string(
-            template_name=f'sales/notify/{scenario}/{role}/body.txt',
+            template_name=f'{tpl_path}/notify/{scenario}/{role}/body.txt',
             context=context,
             request=None
         )
@@ -28,15 +46,10 @@ class EmailTemplate:
         self.item = item
 
     def send(self):
-        if self.role == 'buyer':
-            to_address = self.item.bid.bidder.email
-        else:
-            to_address = self.item.item.owner.email
-
         res = send_mail(
             self.subject,
             self.body,
             settings.DEFAULT_FROM_EMAIL,
-            [to_address]
+            [self.to_address]
         )
         return res

items/tasks/__init__.py

@@ -0,0 +1 @@
+from items.tasks import cleanup

items/tasks/cleanup.py

@@ -0,0 +1,28 @@
+from logging import getLogger
+from datetime import timedelta
+from django.utils import timezone as tz
+from django.conf import settings
+from huey import crontab
+from huey.contrib.djhuey import periodic_task
+from items.models import Item
+from core.helpers.email_template import EmailTemplate
+
+
+logger = getLogger('django.server')
+
+@periodic_task(crontab(minute='0', hour='*/21'))
+def close_stale_items():
+    time_delta = tz.now() - timedelta(days=settings.ESCROW_PERIOD_DAYS)
+    items = Item.objects.filter(list_date__lt=time_delta, available=True)
+
+    for item in items:
+        logger.info(f'[INFO] Found stale item #{item.id} (older than {settings.ESCROW_PERIOD_DAYS} days).')
+        if item.bids:
+            email_template = EmailTemplate(
+                item=item,
+                scenario='item_stale_with_bids',
+                role='seller'
+            )
+            email_template.send()
+
+

web/templates/items/get_item.html

@@ -11,8 +11,8 @@
     <section>
       {% if not item.available %}<p>This item is currently pending sale. Bidding is temporarily closed.</p>{% endif %}
       <p class="sale-info"><strong>Whereabouts</strong>: <a href="https://duckduckgo.com/?q={{ item.whereabouts }}" target="_blank">{{ item.whereabouts }}</a></p>
-      <p class="sale-info"><strong>Creation</strong>: {{ item.list_date | date:"d M Y H:i:s" }}</p>
-      <p class="sale-info"><strong>Last Updated</strong>: {{ item.last_updated | date:"d M Y H:i:s" }}</p>
+      <p class="sale-info"><strong>Creation</strong>: {{ item.list_date | date:"d M Y H:i:s e" }}</p>
+      <p class="sale-info"><strong>Last Updated</strong>: {{ item.last_updated | date:"d M Y H:i:s e" }}</p>
       <p class="sale-info"><strong>Description</strong>: {{ item.description }}</p>
       <p class="sale-info"><strong>Asking Price (XMR)</strong>: {{ item.ask_price_xmr }}</p>
       {% for img in item_images %}

web/templates/items/notify/item_stale_with_bids/seller/body.txt

@@ -0,0 +1,9 @@
+Bad News {{ item.owner }},
+
+Your item, "{{ item.name }}" (#{{ item.id }}), has been listed on the auction house for over {{ escrow_period }} days. There are currently {{ item.bids.values | length }} bid(s) posted to it.
+
+We'll provide you with a few more hours to either accept a bid or delete the item from the auction. Please do something soon.
+
+https://{{ site_url }}{{ item_path }}
+
+Thanks for using {{ site_name }}!

web/templates/items/notify/item_stale_with_bids/seller/subject.txt

@@ -0,0 +1 @@
+[{{ site_name }}] Item Stale! (#{{ item.id }})

xmrauctions/context_processors.py

@@ -6,6 +6,7 @@ def inject_site_meta(request):
         'site_meta': {
             'debug': settings.DEBUG,
             'name': settings.SITE_NAME,
+            'escrow_period': settings.ESCROW_PERIOD_DAYS,
             'tip_address': settings.TIP_WALLET_ADDRESS,
             'platform_address': settings.PLATFORM_WALLET_ADDRESS
         }