Add shop, POS sync, event ticketing, and shipping catalog apps (#6)

## Summary
- Closes #5
- Optional `shop`, `pos_sync`, `events`, and `shipping` apps gated by `FEATURE_*` flags
- Deps match the catalog: shop/events need email + Stripe; POS/shipping need shop
- Portal inventory, POS webhooks, capacity tickets, EasyPost/Pirate Ship shipping

## Test plan
- [ ] `manage.py test` (152 passed locally)
- [ ] Shop cart + paid order decrements stocked inventory
- [ ] POS inbound webhook decrements SKU; paid order queues outbound reserve
- [ ] Event capacity blocks overbook; paid order emails ticket codes
- [ ] Shipping stub label + Pirate Ship CSV of unshipped paid orders
- [ ] `validate-env.sh` rejects shop without email/payments, POS/shipping without shop

Reviewed-on: #6

.env.example

@@ -35,6 +35,10 @@ FEATURE_BLOG=true
 FEATURE_PAYMENTS=true
 FEATURE_SOCIAL=true
 FEATURE_SOCIAL_AI=true
+FEATURE_SHOP=true
+FEATURE_POS_SYNC=true
+FEATURE_EVENTS=true
+FEATURE_SHIPPING=true
 
 # reCAPTCHA (optional locally — form skips captcha when empty)
 RECAPTCHA_PUBLIC_KEY=
@@ -74,6 +78,21 @@ STRIPE_PUBLISHABLE_KEY=
 STRIPE_WEBHOOK_SECRET=
 STRIPE_CURRENCY=usd
 
+# Shop — FEATURE_SHOP (requires email/SMS + payments)
+# SHOP_PRINT_QUEUE_LIMIT_MINUTES=0
+
+# POS sync — FEATURE_POS_SYNC (requires shop). Required in beta/prod.
+POS_WEBHOOK_SECRET=
+POS_API_BASE_URL=
+POS_API_TOKEN=
+
+# Shipping — FEATURE_SHIPPING (requires shop). EasyPost optional; CSV export always works.
+EASYPOST_API_KEY=
+SHIP_FROM_LINE1=
+SHIP_FROM_CITY=
+SHIP_FROM_STATE=
+SHIP_FROM_ZIP=
+
 # Social — SOCIAL_TOKEN_ENCRYPTION_KEY required when FEATURE_SOCIAL=true
 # LinkedIn / Instagram App ID + Secret: Portal → Social accounts (not env).
 META_APP_ID=

.env.prod.example

@@ -32,6 +32,10 @@ FEATURE_BLOG=false
 FEATURE_PAYMENTS=false
 FEATURE_SOCIAL=false
 FEATURE_SOCIAL_AI=false
+FEATURE_SHOP=false
+FEATURE_POS_SYNC=false
+FEATURE_EVENTS=false
+FEATURE_SHIPPING=false
 
 # Shared external Postgres (10.0.0.230)
 DATABASE_URL=postgres://westfarn:replace-db-password@10.0.0.230:5432/client_site
@@ -63,6 +67,21 @@ STRIPE_PUBLISHABLE_KEY=
 STRIPE_WEBHOOK_SECRET=
 STRIPE_CURRENCY=usd
 
+# Required when FEATURE_SHOP=true (also requires FEATURE_EMAIL_SMS + FEATURE_PAYMENTS)
+# SHOP_PRINT_QUEUE_LIMIT_MINUTES=0
+
+# Required when FEATURE_POS_SYNC=true in beta/prod (also requires FEATURE_SHOP)
+POS_WEBHOOK_SECRET=
+POS_API_BASE_URL=
+POS_API_TOKEN=
+
+# Optional when FEATURE_SHIPPING=true (also requires FEATURE_SHOP)
+EASYPOST_API_KEY=
+SHIP_FROM_LINE1=
+SHIP_FROM_CITY=
+SHIP_FROM_STATE=
+SHIP_FROM_ZIP=
+
 # Required when FEATURE_SOCIAL=true
 META_APP_ID=
 META_APP_SECRET=

README.md

@@ -23,6 +23,10 @@ separate Django apps. A flag that is off keeps the app out of
 | Payments (Stripe) | `FEATURE_PAYMENTS` | `payments` (requires email/SMS) |
 | Social consolidation | `FEATURE_SOCIAL` | `social` |
 | AI social generator | `FEATURE_SOCIAL_AI` | `social_ai` (requires social) |
+| E-commerce storefront | `FEATURE_SHOP` | `shop` (requires email/SMS + payments) |
+| POS API sync | `FEATURE_POS_SYNC` | `pos_sync` (requires shop) |
+| Event ticketing | `FEATURE_EVENTS` | `events` (requires email/SMS + payments) |
+| Shipping automation | `FEATURE_SHIPPING` | `shipping` (requires shop) |
 
 ## New client
 

docker-compose.yml

@@ -40,6 +40,10 @@ services:
       FEATURE_PAYMENTS: ${FEATURE_PAYMENTS:-true}
       FEATURE_SOCIAL: ${FEATURE_SOCIAL:-true}
       FEATURE_SOCIAL_AI: ${FEATURE_SOCIAL_AI:-true}
+      FEATURE_SHOP: ${FEATURE_SHOP:-true}
+      FEATURE_POS_SYNC: ${FEATURE_POS_SYNC:-true}
+      FEATURE_EVENTS: ${FEATURE_EVENTS:-true}
+      FEATURE_SHIPPING: ${FEATURE_SHIPPING:-true}
       PUBLIC_SITE_URL: ${PUBLIC_SITE_URL:-http://127.0.0.1:8000}
       EMAIL_HOST: ${EMAIL_HOST:-mail.smtp2go.com}
       EMAIL_HOST_USER: ${EMAIL_HOST_USER:-}

scripts/validate-env.sh

@@ -82,6 +82,41 @@ if _true "${FEATURE_SOCIAL_AI:-}"; then
     exit 1
   fi
 fi
+if _true "${FEATURE_SHOP:-}"; then
+  if ! _true "${FEATURE_EMAIL_SMS:-}"; then
+    echo "FEATURE_SHOP requires FEATURE_EMAIL_SMS" >&2
+    exit 1
+  fi
+  if ! _true "${FEATURE_PAYMENTS:-}"; then
+    echo "FEATURE_SHOP requires FEATURE_PAYMENTS" >&2
+    exit 1
+  fi
+fi
+if _true "${FEATURE_POS_SYNC:-}"; then
+  if ! _true "${FEATURE_SHOP:-}"; then
+    echo "FEATURE_POS_SYNC requires FEATURE_SHOP" >&2
+    exit 1
+  fi
+  if [[ "$DJANGO_ENV" == "prod" || "$DJANGO_ENV" == "beta" ]]; then
+    required_vars+=(POS_WEBHOOK_SECRET)
+  fi
+fi
+if _true "${FEATURE_EVENTS:-}"; then
+  if ! _true "${FEATURE_EMAIL_SMS:-}"; then
+    echo "FEATURE_EVENTS requires FEATURE_EMAIL_SMS" >&2
+    exit 1
+  fi
+  if ! _true "${FEATURE_PAYMENTS:-}"; then
+    echo "FEATURE_EVENTS requires FEATURE_PAYMENTS" >&2
+    exit 1
+  fi
+fi
+if _true "${FEATURE_SHIPPING:-}"; then
+  if ! _true "${FEATURE_SHOP:-}"; then
+    echo "FEATURE_SHIPPING requires FEATURE_SHOP" >&2
+    exit 1
+  fi
+fi
 
 missing=()
 for var in "${required_vars[@]}"; do

site/client_site/settings/base.py

@@ -115,11 +115,27 @@ FEATURE_BLOG = env_bool("FEATURE_BLOG", _feature_default)
 FEATURE_PAYMENTS = env_bool("FEATURE_PAYMENTS", _feature_default)
 FEATURE_SOCIAL = env_bool("FEATURE_SOCIAL", _feature_default)
 FEATURE_SOCIAL_AI = env_bool("FEATURE_SOCIAL_AI", _feature_default)
+FEATURE_SHOP = env_bool("FEATURE_SHOP", _feature_default)
+FEATURE_POS_SYNC = env_bool("FEATURE_POS_SYNC", _feature_default)
+FEATURE_EVENTS = env_bool("FEATURE_EVENTS", _feature_default)
+FEATURE_SHIPPING = env_bool("FEATURE_SHIPPING", _feature_default)
 
 if FEATURE_PAYMENTS and not FEATURE_EMAIL_SMS:
     raise ImproperlyConfigured("FEATURE_PAYMENTS requires FEATURE_EMAIL_SMS")
 if FEATURE_SOCIAL_AI and not FEATURE_SOCIAL:
     raise ImproperlyConfigured("FEATURE_SOCIAL_AI requires FEATURE_SOCIAL")
+if FEATURE_SHOP and not FEATURE_EMAIL_SMS:
+    raise ImproperlyConfigured("FEATURE_SHOP requires FEATURE_EMAIL_SMS")
+if FEATURE_SHOP and not FEATURE_PAYMENTS:
+    raise ImproperlyConfigured("FEATURE_SHOP requires FEATURE_PAYMENTS")
+if FEATURE_POS_SYNC and not FEATURE_SHOP:
+    raise ImproperlyConfigured("FEATURE_POS_SYNC requires FEATURE_SHOP")
+if FEATURE_EVENTS and not FEATURE_EMAIL_SMS:
+    raise ImproperlyConfigured("FEATURE_EVENTS requires FEATURE_EMAIL_SMS")
+if FEATURE_EVENTS and not FEATURE_PAYMENTS:
+    raise ImproperlyConfigured("FEATURE_EVENTS requires FEATURE_PAYMENTS")
+if FEATURE_SHIPPING and not FEATURE_SHOP:
+    raise ImproperlyConfigured("FEATURE_SHIPPING requires FEATURE_SHOP")
 
 CORE_APPS = [
     "core.apps.CoreConfig",
@@ -137,6 +153,10 @@ OPTIONAL_APPS = [
     (FEATURE_PAYMENTS, "payments.apps.PaymentsConfig"),
     (FEATURE_SOCIAL, "social.apps.SocialConfig"),
     (FEATURE_SOCIAL_AI, "social_ai.apps.SocialAiConfig"),
+    (FEATURE_SHOP, "shop.apps.ShopConfig"),
+    (FEATURE_POS_SYNC, "pos_sync.apps.PosSyncConfig"),
+    (FEATURE_EVENTS, "events.apps.EventsConfig"),
+    (FEATURE_SHIPPING, "shipping.apps.ShippingConfig"),
 ]
 DJANGO_APPS = [
     "django.contrib.admin",
@@ -352,6 +372,20 @@ STRIPE_PUBLISHABLE_KEY = env("STRIPE_PUBLISHABLE_KEY", "")
 STRIPE_WEBHOOK_SECRET = env("STRIPE_WEBHOOK_SECRET", "")
 STRIPE_CURRENCY = env("STRIPE_CURRENCY", "usd")
 
+# --- Shop / POS / shipping (FEATURE_SHOP and add-ons) ---
+# 0 = unlimited made-to-order print queue.
+SHOP_PRINT_QUEUE_LIMIT_MINUTES = int(
+    env("SHOP_PRINT_QUEUE_LIMIT_MINUTES", "0") or "0"
+)
+POS_WEBHOOK_SECRET = env("POS_WEBHOOK_SECRET", "")
+POS_API_BASE_URL = env("POS_API_BASE_URL", "")
+POS_API_TOKEN = env("POS_API_TOKEN", "")
+EASYPOST_API_KEY = env("EASYPOST_API_KEY", "")
+SHIP_FROM_LINE1 = env("SHIP_FROM_LINE1", "")
+SHIP_FROM_CITY = env("SHIP_FROM_CITY", "")
+SHIP_FROM_STATE = env("SHIP_FROM_STATE", "")
+SHIP_FROM_ZIP = env("SHIP_FROM_ZIP", "")
+
 # --- Nominatim (address suggest; server-side proxy only) ---
 # Self-hosted on ai-server-4080. Nominatim has no native API keys — gate with
 # LAN UFW + this Django proxy. Optional NOMINATIM_API_KEY is forwarded as

site/client_site/static/css/portal.css

@@ -264,6 +264,63 @@ body.portal {
   line-height: 1.2;
   white-space: nowrap;
 }
+.chart-placeholder.chart-daily {
+  gap: 3px;
+  padding: 16px 10px 8px;
+  overflow-x: auto;
+}
+.chart-placeholder.chart-daily .chart-bar-col {
+  flex: 1 0 8px;
+  min-width: 6px;
+}
+.chart-placeholder.chart-daily .chart-bar-col .bar {
+  min-height: 0;
+}
+.chart-placeholder.chart-daily .chart-bar-col .bar.is-zero {
+  height: 0 !important;
+  min-height: 0;
+  opacity: 0.2;
+}
+.chart-placeholder.chart-daily .chart-bar-label {
+  font-size: 10px;
+}
+.chart-placeholder.chart-revenue .chart-bar-col .bar {
+  background: var(--monica-primary-light);
+}
+.hbar-chart {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+.hbar-row {
+  display: grid;
+  grid-template-columns: minmax(72px, 160px) 1fr auto;
+  gap: 12px;
+  align-items: center;
+}
+.hbar-label {
+  font-size: 13px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.hbar-track {
+  height: 16px;
+  background: #e8f4f5;
+  overflow: hidden;
+}
+.hbar-fill {
+  height: 100%;
+  background: var(--monica-primary);
+  opacity: 0.8;
+  min-width: 0;
+}
+.hbar-value {
+  font-size: 13px;
+  font-weight: 600;
+  min-width: 2.5ch;
+  text-align: right;
+}
 
 .consent-pills { display: flex; gap: 6px; flex-wrap: wrap; }
 .preview-pane {

site/client_site/urls.py

@@ -48,5 +48,19 @@ if apps.is_installed("social_ai"):
     urlpatterns += [
         path("portal/social/api/generate/", include("social_ai.urls")),
     ]
+if apps.is_installed("shop"):
+    urlpatterns += [
+        path("shop/", include("shop.public_urls")),
+        path("portal/shop/", include("shop.portal_urls")),
+    ]
+if apps.is_installed("pos_sync"):
+    urlpatterns += [path("portal/pos/", include("pos_sync.urls"))]
+if apps.is_installed("events"):
+    urlpatterns += [
+        path("events/", include("events.public_urls")),
+        path("portal/events/", include("events.portal_urls")),
+    ]
+if apps.is_installed("shipping"):
+    urlpatterns += [path("portal/shipping/", include("shipping.urls"))]
 
 handler404 = "public.views.page_not_found"

site/core/registry.py

@@ -22,6 +22,7 @@ GROUP_ORDER = {
     "Outreach": 20,
     "Content": 30,
     "Social": 40,
+    "Retail": 45,
     "Billing": 50,
 }
 

site/core/tests_features.py

@@ -22,16 +22,30 @@ class FeatureFlagSettingsTests(SimpleTestCase):
         self.assertIn("FEATURE_PAYMENTS", src)
         self.assertIn("FEATURE_SOCIAL", src)
         self.assertIn("FEATURE_SOCIAL_AI", src)
+        self.assertIn("FEATURE_SHOP", src)
+        self.assertIn("FEATURE_POS_SYNC", src)
+        self.assertIn("FEATURE_EVENTS", src)
+        self.assertIn("FEATURE_SHIPPING", src)
         self.assertIn("email_sms.apps.EmailSmsConfig", src)
         self.assertIn("directmail.apps.DirectmailConfig", src)
         self.assertIn("blog.apps.BlogConfig", src)
         self.assertIn("payments.apps.PaymentsConfig", src)
         self.assertIn("social_ai.apps.SocialAiConfig", src)
+        self.assertIn("shop.apps.ShopConfig", src)
+        self.assertIn("pos_sync.apps.PosSyncConfig", src)
+        self.assertIn("events.apps.EventsConfig", src)
+        self.assertIn("shipping.apps.ShippingConfig", src)
 
     def test_payments_requires_email_sms_in_source(self):
         src = _read_settings_source()
         self.assertIn("FEATURE_PAYMENTS requires FEATURE_EMAIL_SMS", src)
         self.assertIn("FEATURE_SOCIAL_AI requires FEATURE_SOCIAL", src)
+        self.assertIn("FEATURE_SHOP requires FEATURE_EMAIL_SMS", src)
+        self.assertIn("FEATURE_SHOP requires FEATURE_PAYMENTS", src)
+        self.assertIn("FEATURE_POS_SYNC requires FEATURE_SHOP", src)
+        self.assertIn("FEATURE_EVENTS requires FEATURE_EMAIL_SMS", src)
+        self.assertIn("FEATURE_EVENTS requires FEATURE_PAYMENTS", src)
+        self.assertIn("FEATURE_SHIPPING requires FEATURE_SHOP", src)
 
 
 class AlwaysOnImportIsolationTests(SimpleTestCase):
@@ -44,6 +58,10 @@ class AlwaysOnImportIsolationTests(SimpleTestCase):
         "payments",
         "social",
         "social_ai",
+        "shop",
+        "pos_sync",
+        "events",
+        "shipping",
     }
 
     ALWAYS_ON = [
@@ -82,7 +100,18 @@ class InstalledOptionalAppsTests(TestCase):
 
     def test_dev_installs_catalog_apps(self):
         labels = {c.label for c in apps.get_app_configs()}
-        for label in ("email_sms", "directmail", "blog", "payments", "social", "social_ai"):
+        for label in (
+            "email_sms",
+            "directmail",
+            "blog",
+            "payments",
+            "social",
+            "social_ai",
+            "shop",
+            "pos_sync",
+            "events",
+            "shipping",
+        ):
             self.assertIn(label, labels)
 
     def test_optional_urls_resolve_when_installed(self):
@@ -92,3 +121,10 @@ class InstalledOptionalAppsTests(TestCase):
         self.assertTrue(reverse("payments:invoice_list").startswith("/portal/payments/"))
         self.assertTrue(reverse("social:composer").startswith("/portal/social/"))
         self.assertTrue(reverse("social_ai:generate").startswith("/portal/social/api/generate/"))
+        self.assertTrue(reverse("shop:list").startswith("/shop/"))
+        self.assertTrue(reverse("shop_portal:product_list").startswith("/portal/shop/"))
+        self.assertTrue(reverse("shop_portal:sales").startswith("/portal/shop/sales/"))
+        self.assertTrue(reverse("pos_sync:event_list").startswith("/portal/pos/"))
+        self.assertTrue(reverse("events:list").startswith("/events/"))
+        self.assertTrue(reverse("events_portal:event_list").startswith("/portal/events/"))
+        self.assertTrue(reverse("shipping:shipment_list").startswith("/portal/shipping/"))

site/dashboard/templates/dashboard/home.html

@@ -27,6 +27,36 @@
     <div class="value">{{ open_invoices|default:0 }}</div>
   </div>
   {% endif %}
+  {% if 'shop' in enabled_features %}
+  <div class="stat-card">
+    <div class="label">Open shop orders</div>
+    <div class="value">{{ open_shop_orders|default:0 }}</div>
+  </div>
+  <div class="stat-card">
+    <div class="label">Sales (30 days)</div>
+    <div class="value">{{ shop_sales_30d|default:0 }}</div>
+  </div>
+  <div class="stat-card">
+    <div class="label">Shop revenue (30 days)</div>
+    <div class="value" style="font-size:22px">{{ shop_revenue_30d|default:0 }}</div>
+  </div>
+  <div class="stat-card">
+    <div class="label">Low stock</div>
+    <div class="value">{{ low_stock_products|default:0 }}</div>
+  </div>
+  {% endif %}
+  {% if 'events' in enabled_features %}
+  <div class="stat-card">
+    <div class="label">Upcoming events</div>
+    <div class="value">{{ upcoming_events|default:0 }}</div>
+  </div>
+  {% endif %}
+  {% if 'shipping' in enabled_features %}
+  <div class="stat-card">
+    <div class="label">Unshipped orders</div>
+    <div class="value">{{ unshipped_orders|default:0 }}</div>
+  </div>
+  {% endif %}
 </div>
 
 <div class="split">

site/events/admin.py

@@ -0,0 +1,24 @@
+from django.contrib import admin
+
+from events.models import Event, Ticket, TicketOrder
+
+
+@admin.register(Event)
+class EventAdmin(admin.ModelAdmin):
+    list_display = ("title", "starts_at", "capacity", "price", "is_published")
+    list_filter = ("is_published",)
+    search_fields = ("title", "venue")
+    prepopulated_fields = {"slug": ("title",)}
+
+
+@admin.register(TicketOrder)
+class TicketOrderAdmin(admin.ModelAdmin):
+    list_display = ("number", "event", "email", "quantity", "status")
+    list_filter = ("status",)
+    search_fields = ("number", "email")
+
+
+@admin.register(Ticket)
+class TicketAdmin(admin.ModelAdmin):
+    list_display = ("code", "event", "order")
+    search_fields = ("code",)

site/events/apps.py

@@ -0,0 +1,12 @@
+from django.apps import AppConfig
+
+
+class EventsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "events"
+    verbose_name = "Event ticketing"
+
+    def ready(self):
+        from events import hooks
+
+        hooks.register()

site/events/hooks.py

@@ -0,0 +1,33 @@
+from core.registry import (
+    register_dashboard_collector,
+    register_feature,
+    register_portal_nav,
+    register_public_nav,
+)
+
+
+def register() -> None:
+    register_feature("events")
+    register_public_nav(
+        section="events", label="Events", url_name="events:list", order=35
+    )
+    register_portal_nav(
+        section="events",
+        label="Events",
+        url_name="events_portal:event_list",
+        group="Retail",
+        order=30,
+    )
+    register_dashboard_collector(_dashboard)
+
+
+def _dashboard(request) -> dict:
+    from django.utils import timezone
+
+    from events.models import Event
+
+    return {
+        "upcoming_events": Event.objects.filter(
+            is_published=True, starts_at__gte=timezone.now()
+        ).count()
+    }

site/events/migrations/0001_initial.py

@@ -0,0 +1,74 @@
+# Generated by Django 6.1 on 2026-09-06 11:17
+
+import django.db.models.deletion
+import uuid
+from decimal import Decimal
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Event',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('title', models.CharField(max_length=200)),
+                ('slug', models.SlugField(max_length=220, unique=True)),
+                ('description', models.TextField(blank=True)),
+                ('starts_at', models.DateTimeField()),
+                ('venue', models.CharField(blank=True, max_length=200)),
+                ('capacity', models.PositiveIntegerField(default=0)),
+                ('price', models.DecimalField(decimal_places=2, default=Decimal('0'), max_digits=10)),
+                ('currency', models.CharField(default='usd', max_length=8)),
+                ('is_published', models.BooleanField(default=False)),
+            ],
+            options={
+                'ordering': ['starts_at'],
+            },
+        ),
+        migrations.CreateModel(
+            name='TicketOrder',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('number', models.CharField(max_length=32, unique=True)),
+                ('email', models.EmailField(max_length=254)),
+                ('customer_name', models.CharField(blank=True, max_length=200)),
+                ('quantity', models.PositiveIntegerField(default=1)),
+                ('amount', models.DecimalField(decimal_places=2, max_digits=10)),
+                ('currency', models.CharField(default='usd', max_length=8)),
+                ('status', models.CharField(choices=[('draft', 'Draft'), ('open', 'Open'), ('paid', 'Paid'), ('cancelled', 'Cancelled')], default='draft', max_length=16)),
+                ('stripe_checkout_session_id', models.CharField(blank=True, max_length=255)),
+                ('hosted_checkout_url', models.URLField(blank=True)),
+                ('paid_at', models.DateTimeField(blank=True, null=True)),
+                ('event', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='ticket_orders', to='events.event')),
+            ],
+            options={
+                'ordering': ['-created_at'],
+            },
+        ),
+        migrations.CreateModel(
+            name='Ticket',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('code', models.CharField(max_length=16, unique=True)),
+                ('attendee_name', models.CharField(blank=True, max_length=200)),
+                ('event', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='tickets', to='events.event')),
+                ('order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tickets', to='events.ticketorder')),
+            ],
+            options={
+                'ordering': ['created_at'],
+            },
+        ),
+    ]

site/events/models.py

@@ -0,0 +1,111 @@
+from decimal import Decimal
+
+from django.db import models
+from django.urls import reverse
+from django.utils import timezone
+from django.utils.text import slugify
+
+from core.models import TimeStampedModel, UUIDPrimaryKeyModel
+
+
+class Event(UUIDPrimaryKeyModel, TimeStampedModel):
+    title = models.CharField(max_length=200)
+    slug = models.SlugField(max_length=220, unique=True)
+    description = models.TextField(blank=True)
+    starts_at = models.DateTimeField()
+    venue = models.CharField(max_length=200, blank=True)
+    capacity = models.PositiveIntegerField(default=0)
+    price = models.DecimalField(max_digits=10, decimal_places=2, default=Decimal("0"))
+    currency = models.CharField(max_length=8, default="usd")
+    is_published = models.BooleanField(default=False)
+
+    class Meta:
+        ordering = ["starts_at"]
+
+    def __str__(self) -> str:
+        return self.title
+
+    def get_absolute_url(self) -> str:
+        return reverse("events:detail", kwargs={"slug": self.slug})
+
+    def save(self, *args, **kwargs):
+        if not self.slug:
+            base = slugify(self.title)[:200] or "event"
+            slug = base
+            n = 2
+            while Event.objects.filter(slug=slug).exclude(pk=self.pk).exists():
+                slug = f"{base}-{n}"
+                n += 1
+            self.slug = slug
+        super().save(*args, **kwargs)
+
+    def tickets_held(self, *, exclude_order_id=None) -> int:
+        qs = self.ticket_orders.filter(
+            status__in=[
+                TicketOrder.Status.DRAFT,
+                TicketOrder.Status.OPEN,
+                TicketOrder.Status.PAID,
+            ]
+        )
+        if exclude_order_id:
+            qs = qs.exclude(pk=exclude_order_id)
+        return qs.aggregate(total=models.Sum("quantity"))["total"] or 0
+
+    @property
+    def tickets_sold(self) -> int:
+        return self.tickets_held()
+
+    @property
+    def seats_remaining(self) -> int | None:
+        if not self.capacity:
+            return None
+        return max(self.capacity - self.tickets_sold, 0)
+
+    @property
+    def is_upcoming(self) -> bool:
+        return self.starts_at >= timezone.now()
+
+
+class TicketOrder(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Status(models.TextChoices):
+        DRAFT = "draft", "Draft"
+        OPEN = "open", "Open"
+        PAID = "paid", "Paid"
+        CANCELLED = "cancelled", "Cancelled"
+
+    number = models.CharField(max_length=32, unique=True)
+    event = models.ForeignKey(
+        Event, on_delete=models.PROTECT, related_name="ticket_orders"
+    )
+    email = models.EmailField()
+    customer_name = models.CharField(max_length=200, blank=True)
+    quantity = models.PositiveIntegerField(default=1)
+    amount = models.DecimalField(max_digits=10, decimal_places=2)
+    currency = models.CharField(max_length=8, default="usd")
+    status = models.CharField(
+        max_length=16, choices=Status.choices, default=Status.DRAFT
+    )
+    stripe_checkout_session_id = models.CharField(max_length=255, blank=True)
+    hosted_checkout_url = models.URLField(blank=True)
+    paid_at = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return f"{self.number} · {self.event}"
+
+
+class Ticket(UUIDPrimaryKeyModel, TimeStampedModel):
+    order = models.ForeignKey(
+        TicketOrder, on_delete=models.CASCADE, related_name="tickets"
+    )
+    event = models.ForeignKey(Event, on_delete=models.PROTECT, related_name="tickets")
+    code = models.CharField(max_length=16, unique=True)
+    attendee_name = models.CharField(max_length=200, blank=True)
+
+    class Meta:
+        ordering = ["created_at"]
+
+    def __str__(self) -> str:
+        return self.code

site/events/portal_urls.py

@@ -0,0 +1,13 @@
+from django.urls import path
+
+from events import views
+
+app_name = "events_portal"
+
+urlpatterns = [
+    path("", views.portal_event_list, name="event_list"),
+    path("new/", views.portal_event_edit, name="event_new"),
+    path("<uuid:pk>/", views.portal_event_detail, name="event_detail"),
+    path("<uuid:pk>/edit/", views.portal_event_edit, name="event_edit"),
+    path("webhooks/stripe/", views.stripe_webhook, name="stripe_webhook"),
+]

site/events/public_urls.py

@@ -0,0 +1,13 @@
+from django.urls import path
+
+from events import views
+
+app_name = "events"
+
+urlpatterns = [
+    path("", views.event_list, name="list"),
+    path("order/<uuid:pk>/success/", views.checkout_success, name="checkout_success"),
+    path("order/<uuid:pk>/cancel/", views.checkout_cancel, name="checkout_cancel"),
+    path("<slug:slug>/", views.event_detail, name="detail"),
+    path("<slug:slug>/buy/", views.buy_tickets, name="buy"),
+]

site/events/services.py

@@ -0,0 +1,188 @@
+"""Event capacity, Stripe ticket checkout, and confirmation email."""
+
+from __future__ import annotations
+
+import logging
+import secrets
+from datetime import date
+from decimal import Decimal
+
+from django.conf import settings
+from django.db import transaction
+from django.utils import timezone
+
+from events.models import Event, Ticket, TicketOrder
+
+logger = logging.getLogger(__name__)
+
+
+class EventsError(RuntimeError):
+    pass
+
+
+def _stripe():
+    secret = (settings.STRIPE_SECRET_KEY or "").strip()
+    if not secret:
+        raise EventsError("STRIPE_SECRET_KEY is not configured")
+    try:
+        import stripe
+    except ImportError as exc:
+        raise EventsError("stripe package is not installed") from exc
+    stripe.api_key = secret
+    return stripe
+
+
+def next_ticket_order_number() -> str:
+    today = date.today().strftime("%Y%m%d")
+    prefix = f"TIX-{today}-"
+    existing = TicketOrder.objects.filter(number__startswith=prefix).count()
+    return f"{prefix}{existing + 1:03d}"
+
+
+def new_ticket_code() -> str:
+    while True:
+        code = secrets.token_hex(4).upper()
+        if not Ticket.objects.filter(code=code).exists():
+            return code
+
+
+def assert_capacity(
+    event: Event, quantity: int, *, exclude_order_id=None
+) -> None:
+    if quantity < 1:
+        raise EventsError("Quantity must be at least 1.")
+    if not event.capacity:
+        return
+    held = event.tickets_held(exclude_order_id=exclude_order_id)
+    remaining = max(event.capacity - held, 0)
+    if quantity > remaining:
+        raise EventsError(f"Only {remaining} seats left for {event.title}.")
+
+
+def create_ticket_order(
+    event: Event, *, email: str, customer_name: str = "", quantity: int = 1
+) -> TicketOrder:
+    email = (email or "").strip()
+    if not email:
+        raise EventsError("Email is required.")
+    if not event.is_published:
+        raise EventsError("This event is not on sale.")
+    assert_capacity(event, quantity)
+    amount = event.price * quantity
+    return TicketOrder.objects.create(
+        number=next_ticket_order_number(),
+        event=event,
+        email=email,
+        customer_name=(customer_name or "").strip(),
+        quantity=quantity,
+        amount=amount,
+        currency=(event.currency or settings.STRIPE_CURRENCY or "usd").lower(),
+        status=TicketOrder.Status.DRAFT,
+    )
+
+
+def create_checkout_session(
+    order: TicketOrder, *, success_url: str, cancel_url: str
+) -> str:
+    stripe = _stripe()
+    session = stripe.checkout.Session.create(
+        mode="payment",
+        customer_email=order.email or None,
+        line_items=[
+            {
+                "quantity": order.quantity,
+                "price_data": {
+                    "currency": (order.currency or "usd").lower(),
+                    "unit_amount": int(
+                        (order.event.price * Decimal("100")).quantize(Decimal("1"))
+                    ),
+                    "product_data": {"name": order.event.title},
+                },
+            }
+        ],
+        metadata={
+            "ticket_order_id": str(order.pk),
+            "ticket_order_number": order.number,
+        },
+        success_url=success_url,
+        cancel_url=cancel_url,
+    )
+    order.stripe_checkout_session_id = session.id
+    order.hosted_checkout_url = session.url or ""
+    order.status = TicketOrder.Status.OPEN
+    order.save(
+        update_fields=[
+            "stripe_checkout_session_id",
+            "hosted_checkout_url",
+            "status",
+            "updated_at",
+        ]
+    )
+    return session.url or ""
+
+
+def _issue_tickets(order: TicketOrder) -> list[Ticket]:
+    created = []
+    for _ in range(order.quantity):
+        created.append(
+            Ticket.objects.create(
+                order=order,
+                event=order.event,
+                code=new_ticket_code(),
+                attendee_name=order.customer_name,
+            )
+        )
+    return created
+
+
+def mark_paid(order: TicketOrder, *, stripe_id: str = "") -> None:
+    if order.status == TicketOrder.Status.PAID:
+        return
+    with transaction.atomic():
+        locked = TicketOrder.objects.select_for_update().get(pk=order.pk)
+        if locked.status == TicketOrder.Status.PAID:
+            return
+        assert_capacity(
+            locked.event, locked.quantity, exclude_order_id=locked.pk
+        )
+        _issue_tickets(locked)
+        locked.status = TicketOrder.Status.PAID
+        locked.paid_at = timezone.now()
+        locked.save(update_fields=["status", "paid_at", "updated_at"])
+    order.refresh_from_db()
+    try:
+        send_ticket_email(order)
+    except Exception:
+        logger.exception("ticket email failed for %s", order.number)
+
+
+def send_ticket_email(order: TicketOrder) -> bool:
+    to_email = (order.email or "").strip()
+    if not to_email:
+        raise EventsError("Order has no email address")
+    from django.core.mail import EmailMultiAlternatives
+
+    codes = ", ".join(t.code for t in order.tickets.all())
+    name = order.customer_name or "there"
+    when = timezone.localtime(order.event.starts_at).strftime("%b %d, %Y %-I:%M %p")
+    subject = f"Tickets for {order.event.title} — {settings.SITE_NAME}"
+    text = (
+        f"Hi {name},\n\n"
+        f"Your tickets for {order.event.title} on {when}:\n"
+        f"{codes}\n\nOrder {order.number}\n"
+    )
+    html = (
+        f"<p>Hi {name},</p>"
+        f"<p>Tickets for <strong>{order.event.title}</strong> on {when}:</p>"
+        f"<p><strong>{codes}</strong></p>"
+        f"<p>Order {order.number}</p>"
+    )
+    mail = EmailMultiAlternatives(
+        subject=subject,
+        body=text,
+        from_email=settings.DEFAULT_FROM_EMAIL,
+        to=[to_email],
+    )
+    mail.attach_alternative(html, "text/html")
+    mail.send(fail_silently=False)
+    return True

site/events/templates/events/buy.html

@@ -0,0 +1,17 @@
+{% extends "base.html" %}
+{% block title %}Tickets · {{ event.title }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <h1>Tickets · {{ event.title }}</h1>
+    <p>{{ event.price }} {{ event.currency|upper }} each{% if event.seats_remaining is not None %} · {{ event.seats_remaining }} left{% endif %}</p>
+    <form method="post">
+      {% csrf_token %}
+      <p><label>Email <input name="email" type="email" required></label></p>
+      <p><label>Name <input name="customer_name"></label></p>
+      <p><label>Quantity <input name="quantity" type="number" min="1" value="1"></label></p>
+      <button class="button button-primary" type="submit">Pay with Stripe</button>
+    </form>
+  </div>
+</section>
+{% endblock %}

site/events/templates/events/cancel.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+{% block title %}Checkout cancelled{% endblock %}
+{% block content %}
+<section class="section section-lg"><div class="container">
+<h1>Checkout cancelled</h1>
+<p>No charge for {{ order.event.title }}. <a href="{% url 'events:buy' order.event.slug %}">Try again</a>.</p>
+</div></section>
+{% endblock %}

site/events/templates/events/detail.html

@@ -0,0 +1,18 @@
+{% extends "base.html" %}
+{% block title %}{{ event.title }} · {{ SITE_NAME }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <p><a href="{% url 'events:list' %}">← Events</a></p>
+    <h1>{{ event.title }}</h1>
+    <p class="muted">{{ event.starts_at|date:"F j, Y g:i A" }}{% if event.venue %} · {{ event.venue }}{% endif %}</p>
+    <div>{{ event.description|linebreaks }}</div>
+    <p>{{ event.price }} {{ event.currency|upper }}</p>
+    {% if event.seats_remaining == 0 %}
+    <p>Sold out.</p>
+    {% else %}
+    <p><a class="button button-primary" href="{% url 'events:buy' event.slug %}">Buy tickets</a></p>
+    {% endif %}
+  </div>
+</section>
+{% endblock %}

site/events/templates/events/list.html

@@ -0,0 +1,18 @@
+{% extends "base.html" %}
+{% block title %}Events · {{ SITE_NAME }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <h1 class="text-uppercase">Events</h1>
+    {% for event in events %}
+    <article style="margin:0 0 32px">
+      <h2><a href="{{ event.get_absolute_url }}">{{ event.title }}</a></h2>
+      <p class="muted">{{ event.starts_at|date:"F j, Y g:i A" }}{% if event.venue %} · {{ event.venue }}{% endif %}</p>
+      <p>{{ event.price }} {{ event.currency|upper }}{% if event.seats_remaining is not None %} · {{ event.seats_remaining }} seats left{% endif %}</p>
+    </article>
+    {% empty %}
+    <p>No upcoming events.</p>
+    {% endfor %}
+  </div>
+</section>
+{% endblock %}

site/events/templates/events/portal/detail.html

@@ -0,0 +1,23 @@
+{% extends "portal_base.html" %}
+{% block title %}{{ event.title }} · Portal{% endblock %}
+{% block topbar_title %}{{ event.title }}{% endblock %}
+{% block portal_content %}
+<p><a class="btn btn-ghost" href="{% url 'events_portal:event_edit' event.pk %}">Edit</a></p>
+<p>{{ event.starts_at }} · {{ event.tickets_sold }} / {{ event.capacity|default:"∞" }} seats · {{ event.price }} {{ event.currency|upper }}</p>
+<table class="table">
+  <thead><tr><th>Order</th><th>Email</th><th>Qty</th><th>Status</th><th>Codes</th></tr></thead>
+  <tbody>
+    {% for order in orders %}
+    <tr>
+      <td>{{ order.number }}</td>
+      <td>{{ order.email }}</td>
+      <td>{{ order.quantity }}</td>
+      <td>{{ order.get_status_display }}</td>
+      <td>{% for ticket in order.tickets.all %}{{ ticket.code }}{% if not forloop.last %}, {% endif %}{% endfor %}</td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="5" class="empty-state">No ticket orders yet.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+{% endblock %}

site/events/templates/events/portal/edit.html

@@ -0,0 +1,17 @@
+{% extends "portal_base.html" %}
+{% block title %}{% if event %}Edit{% else %}New{% endif %} event · Portal{% endblock %}
+{% block topbar_title %}{% if event %}Edit event{% else %}New event{% endif %}{% endblock %}
+{% block portal_content %}
+<form method="post" class="form-grid">
+  {% csrf_token %}
+  <div class="field"><label>Title</label><input name="title" required value="{{ event.title|default:'' }}"></div>
+  <div class="field"><label>Slug</label><input name="slug" value="{{ event.slug|default:'' }}" placeholder="auto from title"></div>
+  <div class="field"><label>Starts</label><input name="starts_at" type="datetime-local" required value="{% if event %}{{ event.starts_at|date:'Y-m-d\\TH:i' }}{% endif %}"></div>
+  <div class="field"><label>Venue</label><input name="venue" value="{{ event.venue|default:'' }}"></div>
+  <div class="field"><label>Capacity</label><input name="capacity" type="number" min="0" value="{{ event.capacity|default:0 }}"></div>
+  <div class="field"><label>Price</label><input name="price" type="number" step="0.01" min="0" required value="{{ event.price|default:'0' }}"></div>
+  <div class="field"><label>Description</label><textarea name="description" style="min-height:120px">{{ event.description|default:'' }}</textarea></div>
+  <label><input type="checkbox" name="is_published" {% if event.is_published %}checked{% endif %}> Published</label>
+  <button class="btn btn-primary" type="submit">Save</button>
+</form>
+{% endblock %}

site/events/templates/events/portal/list.html

@@ -0,0 +1,21 @@
+{% extends "portal_base.html" %}
+{% block title %}Events · Portal{% endblock %}
+{% block topbar_title %}Events{% endblock %}
+{% block portal_content %}
+<p><a class="btn btn-primary" href="{% url 'events_portal:event_new' %}">New event</a></p>
+<table class="table">
+  <thead><tr><th>Title</th><th>When</th><th>Capacity</th><th>Status</th></tr></thead>
+  <tbody>
+    {% for event in events %}
+    <tr>
+      <td><a href="{% url 'events_portal:event_detail' event.pk %}">{{ event.title }}</a></td>
+      <td>{{ event.starts_at }}</td>
+      <td>{{ event.tickets_sold }} / {{ event.capacity|default:"∞" }}</td>
+      <td>{% if event.is_published %}Published{% else %}Draft{% endif %}</td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="4" class="empty-state">No events yet.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+{% endblock %}

site/events/templates/events/success.html

@@ -0,0 +1,9 @@
+{% extends "base.html" %}
+{% block title %}Tickets {{ order.number }}{% endblock %}
+{% block content %}
+<section class="section section-lg"><div class="container">
+<h1>You're in</h1>
+<p>Order {{ order.number }} for {{ order.event.title }} is {{ order.get_status_display|lower }}.</p>
+<p>Ticket codes will be emailed to {{ order.email }}.</p>
+</div></section>
+{% endblock %}

site/events/tests.py

@@ -0,0 +1,95 @@
+from decimal import Decimal
+
+from django.contrib.auth import get_user_model
+from django.core import mail
+from django.test import Client, TestCase
+from django.urls import reverse
+from django.utils import timezone
+
+from events.models import Event, Ticket, TicketOrder
+from events.services import EventsError, create_ticket_order, mark_paid
+
+
+def _event(**kwargs):
+    defaults = dict(
+        title="Friday Night Prerelease",
+        starts_at=timezone.now() + timezone.timedelta(days=7),
+        venue="Main shop",
+        capacity=8,
+        price=Decimal("25.00"),
+        is_published=True,
+    )
+    defaults.update(kwargs)
+    return Event.objects.create(**defaults)
+
+
+class EventPublicTests(TestCase):
+    def test_list_hides_drafts_and_past(self):
+        _event(title="Live prerelease")
+        _event(title="Draft night", is_published=False)
+        _event(
+            title="Last week",
+            starts_at=timezone.now() - timezone.timedelta(days=2),
+        )
+        response = Client().get(reverse("events:list"))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "Live prerelease")
+        self.assertNotContains(response, "Draft night")
+        self.assertNotContains(response, "Last week")
+
+    def test_buy_form_renders(self):
+        event = _event()
+        response = Client().get(reverse("events:buy", kwargs={"slug": event.slug}))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "Pay with Stripe")
+
+
+class EventCapacityTests(TestCase):
+    def test_capacity_blocks_overbook(self):
+        event = _event(capacity=2)
+        create_ticket_order(event, email="a@example.com", quantity=2)
+        with self.assertRaises(EventsError):
+            create_ticket_order(event, email="b@example.com", quantity=1)
+
+    def test_mark_paid_issues_tickets_and_email(self):
+        event = _event(capacity=4)
+        order = create_ticket_order(
+            event, email="fan@example.com", customer_name="Lee", quantity=2
+        )
+        mark_paid(order)
+        order.refresh_from_db()
+        self.assertEqual(order.status, TicketOrder.Status.PAID)
+        self.assertEqual(Ticket.objects.filter(order=order).count(), 2)
+        self.assertEqual(event.tickets_sold, 2)
+        self.assertEqual(len(mail.outbox), 1)
+        self.assertIn(event.title, mail.outbox[0].subject)
+
+
+class EventPortalTests(TestCase):
+    def setUp(self):
+        User = get_user_model()
+        self.user = User.objects.create_user("host", password="test-pass-123")
+        self.client = Client()
+        self.client.login(username="host", password="test-pass-123")
+
+    def test_list_requires_login(self):
+        self.assertEqual(Client().get(reverse("events_portal:event_list")).status_code, 302)
+
+    def test_create_published_event(self):
+        starts = (timezone.now() + timezone.timedelta(days=3)).strftime("%Y-%m-%dT%H:%M")
+        response = self.client.post(
+            reverse("events_portal:event_new"),
+            {
+                "title": "Commander night",
+                "starts_at": starts,
+                "venue": "Back room",
+                "capacity": "16",
+                "price": "10.00",
+                "is_published": "on",
+            },
+        )
+        self.assertEqual(response.status_code, 302)
+        event = Event.objects.get()
+        self.assertEqual(event.slug, "commander-night")
+        self.assertTrue(event.is_published)
+        self.assertEqual(event.capacity, 16)

site/events/views.py

@@ -0,0 +1,194 @@
+import logging
+from decimal import Decimal, InvalidOperation
+
+from django.conf import settings
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponse, HttpResponseBadRequest
+from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse
+from django.utils import timezone
+from datetime import datetime
+from django.utils.text import slugify
+from django.views.decorators.csrf import csrf_exempt
+from django.views.decorators.http import require_http_methods
+
+from events.models import Event, TicketOrder
+from events.services import (
+    EventsError,
+    create_checkout_session,
+    create_ticket_order,
+    mark_paid,
+)
+
+logger = logging.getLogger(__name__)
+
+
+def _site_base(request) -> str:
+    base = (settings.PUBLIC_SITE_URL or "").rstrip("/")
+    if base:
+        return base
+    return request.build_absolute_uri("/").rstrip("/")
+
+
+def event_list(request):
+    events = Event.objects.filter(is_published=True, starts_at__gte=timezone.now())
+    return render(request, "events/list.html", {"events": events})
+
+
+def event_detail(request, slug):
+    event = get_object_or_404(Event, slug=slug, is_published=True)
+    return render(request, "events/detail.html", {"event": event})
+
+
+@require_http_methods(["GET", "POST"])
+def buy_tickets(request, slug):
+    event = get_object_or_404(Event, slug=slug, is_published=True)
+    if request.method == "POST":
+        email = (request.POST.get("email") or "").strip()
+        name = (request.POST.get("customer_name") or "").strip()
+        try:
+            quantity = int(request.POST.get("quantity") or "1")
+        except ValueError:
+            quantity = 0
+        try:
+            order = create_ticket_order(
+                event, email=email, customer_name=name, quantity=quantity
+            )
+            base = _site_base(request)
+            success = base + reverse(
+                "events:checkout_success", kwargs={"pk": order.pk}
+            )
+            cancel = base + reverse("events:checkout_cancel", kwargs={"pk": order.pk})
+            url = create_checkout_session(
+                order,
+                success_url=success + "?session_id={CHECKOUT_SESSION_ID}",
+                cancel_url=cancel,
+            )
+        except EventsError as exc:
+            messages.error(request, str(exc))
+        except Exception as exc:  # noqa: BLE001
+            logger.exception("ticket checkout failed")
+            messages.error(request, f"Could not start checkout: {exc}")
+        else:
+            return redirect(url)
+    return render(request, "events/buy.html", {"event": event})
+
+
+def checkout_success(request, pk):
+    order = get_object_or_404(TicketOrder.objects.select_related("event"), pk=pk)
+    return render(request, "events/success.html", {"order": order})
+
+
+def checkout_cancel(request, pk):
+    order = get_object_or_404(TicketOrder.objects.select_related("event"), pk=pk)
+    return render(request, "events/cancel.html", {"order": order})
+
+
+@login_required
+def portal_event_list(request):
+    events = Event.objects.all().order_by("-starts_at")
+    return render(request, "events/portal/list.html", {"events": events})
+
+
+@login_required
+@require_http_methods(["GET", "POST"])
+def portal_event_edit(request, pk=None):
+    event = get_object_or_404(Event, pk=pk) if pk else None
+    if request.method == "POST":
+        title = (request.POST.get("title") or "").strip()
+        description = (request.POST.get("description") or "").strip()
+        venue = (request.POST.get("venue") or "").strip()
+        slug = (request.POST.get("slug") or "").strip()
+        starts_raw = (request.POST.get("starts_at") or "").strip()
+        errors = []
+        if not title:
+            errors.append("Title is required.")
+        starts_at = None
+        if starts_raw:
+            try:
+                starts_at = datetime.fromisoformat(starts_raw)
+            except ValueError:
+                starts_at = None
+        if starts_at is None:
+            errors.append("Start date/time is required.")
+        elif timezone.is_naive(starts_at):
+            starts_at = timezone.make_aware(starts_at, timezone.get_current_timezone())
+        try:
+            capacity = int(request.POST.get("capacity") or "0")
+        except ValueError:
+            capacity = 0
+            errors.append("Capacity must be a number.")
+        try:
+            price = Decimal(request.POST.get("price") or "0")
+            if price < 0:
+                raise InvalidOperation
+        except Exception:
+            price = None
+            errors.append("Enter a valid price.")
+        if errors:
+            for err in errors:
+                messages.error(request, err)
+        else:
+            if event is None:
+                event = Event()
+            event.title = title
+            event.description = description
+            event.venue = venue
+            event.slug = slugify(slug)[:220] if slug else ""
+            event.starts_at = starts_at
+            event.capacity = max(capacity, 0)
+            event.price = price
+            event.currency = (settings.STRIPE_CURRENCY or "usd").lower()
+            event.is_published = request.POST.get("is_published") == "on"
+            event.save()
+            messages.success(request, f"Saved {event.title}.")
+            return redirect("events_portal:event_list")
+    return render(request, "events/portal/edit.html", {"event": event})
+
+
+@login_required
+def portal_event_detail(request, pk):
+    event = get_object_or_404(Event, pk=pk)
+    orders = event.ticket_orders.select_related().prefetch_related("tickets")
+    return render(
+        request,
+        "events/portal/detail.html",
+        {"event": event, "orders": orders},
+    )
+
+
+@csrf_exempt
+@require_http_methods(["POST"])
+def stripe_webhook(request):
+    secret = (settings.STRIPE_WEBHOOK_SECRET or "").strip()
+    if not secret:
+        logger.error("STRIPE_WEBHOOK_SECRET unset")
+        return HttpResponseBadRequest("webhook not configured")
+    try:
+        import stripe
+    except ImportError:
+        return HttpResponseBadRequest("stripe not installed")
+    sig = request.headers.get("Stripe-Signature", "")
+    try:
+        event = stripe.Webhook.construct_event(request.body, sig, secret)
+    except Exception:
+        logger.exception("events stripe webhook signature failed")
+        return HttpResponseBadRequest("invalid signature")
+
+    obj = event.get("data", {}).get("object", {}) or {}
+    if event.get("type") != "checkout.session.completed":
+        return HttpResponse("ok")
+    order_id = (obj.get("metadata") or {}).get("ticket_order_id") or ""
+    order = None
+    if order_id:
+        order = TicketOrder.objects.filter(pk=order_id).first()
+    if order is None:
+        session_id = obj.get("id") or ""
+        order = TicketOrder.objects.filter(
+            stripe_checkout_session_id=session_id
+        ).first()
+    if order and order.status != TicketOrder.Status.PAID:
+        mark_paid(order, stripe_id=obj.get("id") or "")
+        logger.info("ticket order %s marked paid", order.number)
+    return HttpResponse("ok")

site/pos_sync/admin.py

@@ -0,0 +1,16 @@
+from django.contrib import admin
+
+from pos_sync.models import POSConnection, SyncEvent
+
+
+@admin.register(POSConnection)
+class POSConnectionAdmin(admin.ModelAdmin):
+    list_display = ("name", "provider", "is_active")
+    list_filter = ("provider", "is_active")
+
+
+@admin.register(SyncEvent)
+class SyncEventAdmin(admin.ModelAdmin):
+    list_display = ("direction", "sku", "quantity", "status", "created_at")
+    list_filter = ("direction", "status")
+    search_fields = ("sku", "external_id")

site/pos_sync/apps.py

@@ -0,0 +1,12 @@
+from django.apps import AppConfig
+
+
+class PosSyncConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "pos_sync"
+    verbose_name = "POS API sync"
+
+    def ready(self):
+        from pos_sync import hooks
+
+        hooks.register()

site/pos_sync/hooks.py

@@ -0,0 +1,35 @@
+from core.registry import (
+    register_dashboard_collector,
+    register_dispatcher,
+    register_feature,
+    register_portal_nav,
+)
+
+
+def register() -> None:
+    register_feature("pos_sync")
+    register_portal_nav(
+        section="pos_sync",
+        label="POS sync",
+        url_name="pos_sync:event_list",
+        group="Retail",
+        order=40,
+    )
+    register_dashboard_collector(_dashboard)
+    register_dispatcher(_dispatch)
+
+
+def _dashboard(request) -> dict:
+    from pos_sync.models import SyncEvent
+
+    return {
+        "pos_failed_syncs": SyncEvent.objects.filter(
+            status=SyncEvent.Status.FAILED
+        ).count()
+    }
+
+
+def _dispatch() -> int:
+    from pos_sync.services import dispatch_pending_outbound
+
+    return dispatch_pending_outbound()

site/pos_sync/migrations/0001_initial.py

@@ -0,0 +1,52 @@
+# Generated by Django 6.1 on 2026-09-06 11:17
+
+import django.db.models.deletion
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='POSConnection',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.CharField(max_length=120)),
+                ('provider', models.CharField(choices=[('generic', 'Generic REST'), ('square', 'Square'), ('lightspeed', 'Lightspeed'), ('binderpos', 'BinderPOS'), ('crystalcommerce', 'CrystalCommerce')], default='generic', max_length=32)),
+                ('api_base_url', models.URLField(blank=True)),
+                ('api_token', models.CharField(blank=True, max_length=255)),
+                ('webhook_secret', models.CharField(blank=True, max_length=255)),
+                ('is_active', models.BooleanField(default=True)),
+            ],
+            options={
+                'ordering': ['name'],
+            },
+        ),
+        migrations.CreateModel(
+            name='SyncEvent',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('direction', models.CharField(choices=[('inbound', 'POS → site'), ('outbound', 'Site → POS')], max_length=16)),
+                ('status', models.CharField(choices=[('pending', 'Pending'), ('done', 'Done'), ('failed', 'Failed')], default='pending', max_length=16)),
+                ('sku', models.CharField(max_length=64)),
+                ('quantity', models.IntegerField(default=0)),
+                ('external_id', models.CharField(blank=True, max_length=255)),
+                ('payload', models.JSONField(blank=True, default=dict)),
+                ('error', models.TextField(blank=True)),
+                ('connection', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='events', to='pos_sync.posconnection')),
+            ],
+            options={
+                'ordering': ['-created_at'],
+            },
+        ),
+    ]

site/pos_sync/models.py

@@ -0,0 +1,61 @@
+from django.db import models
+
+from core.models import TimeStampedModel, UUIDPrimaryKeyModel
+
+
+class POSConnection(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Provider(models.TextChoices):
+        GENERIC = "generic", "Generic REST"
+        SQUARE = "square", "Square"
+        LIGHTSPEED = "lightspeed", "Lightspeed"
+        BINDERPOS = "binderpos", "BinderPOS"
+        CRYSTALCOMMERCE = "crystalcommerce", "CrystalCommerce"
+
+    name = models.CharField(max_length=120)
+    provider = models.CharField(
+        max_length=32, choices=Provider.choices, default=Provider.GENERIC
+    )
+    api_base_url = models.URLField(blank=True)
+    api_token = models.CharField(max_length=255, blank=True)
+    webhook_secret = models.CharField(max_length=255, blank=True)
+    is_active = models.BooleanField(default=True)
+
+    class Meta:
+        ordering = ["name"]
+
+    def __str__(self) -> str:
+        return self.name
+
+
+class SyncEvent(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Direction(models.TextChoices):
+        INBOUND = "inbound", "POS → site"
+        OUTBOUND = "outbound", "Site → POS"
+
+    class Status(models.TextChoices):
+        PENDING = "pending", "Pending"
+        DONE = "done", "Done"
+        FAILED = "failed", "Failed"
+
+    connection = models.ForeignKey(
+        POSConnection,
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name="events",
+    )
+    direction = models.CharField(max_length=16, choices=Direction.choices)
+    status = models.CharField(
+        max_length=16, choices=Status.choices, default=Status.PENDING
+    )
+    sku = models.CharField(max_length=64)
+    quantity = models.IntegerField(default=0)
+    external_id = models.CharField(max_length=255, blank=True)
+    payload = models.JSONField(default=dict, blank=True)
+    error = models.TextField(blank=True)
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return f"{self.direction} {self.sku} × {self.quantity} · {self.status}"

site/pos_sync/services.py

@@ -0,0 +1,131 @@
+"""POS inventory sync. Inbound webhooks decrement shop stock; outbound queues reserve POS."""
+
+from __future__ import annotations
+
+import logging
+
+import requests
+from django.conf import settings
+from django.db import transaction
+
+from pos_sync.models import POSConnection, SyncEvent
+from shop.models import Product
+from shop.services import ShopError, adjust_stock
+
+logger = logging.getLogger(__name__)
+
+
+class POSSyncError(RuntimeError):
+    pass
+
+
+def active_connection() -> POSConnection | None:
+    return POSConnection.objects.filter(is_active=True).order_by("created_at").first()
+
+
+def apply_inbound_sale(
+    *,
+    sku: str,
+    quantity: int,
+    external_id: str = "",
+    payload: dict | None = None,
+    connection: POSConnection | None = None,
+) -> SyncEvent:
+    sku = (sku or "").strip()
+    if not sku:
+        raise POSSyncError("SKU is required.")
+    if quantity < 1:
+        raise POSSyncError("Quantity must be at least 1.")
+    product = Product.objects.filter(sku__iexact=sku).first()
+    if product is None:
+        raise POSSyncError(f"Unknown SKU {sku}.")
+    event = SyncEvent.objects.create(
+        connection=connection or active_connection(),
+        direction=SyncEvent.Direction.INBOUND,
+        status=SyncEvent.Status.PENDING,
+        sku=product.sku,
+        quantity=quantity,
+        external_id=external_id,
+        payload=payload or {},
+    )
+    try:
+        with transaction.atomic():
+            locked = Product.objects.select_for_update().get(pk=product.pk)
+            if locked.track_inventory and locked.fulfillment == Product.Fulfillment.STOCKED:
+                adjust_stock(locked, -quantity)
+        event.status = SyncEvent.Status.DONE
+        event.save(update_fields=["status", "updated_at"])
+    except ShopError as exc:
+        event.status = SyncEvent.Status.FAILED
+        event.error = str(exc)
+        event.save(update_fields=["status", "error", "updated_at"])
+        raise POSSyncError(str(exc)) from exc
+    return event
+
+
+def enqueue_online_sale(order) -> list[SyncEvent]:
+    """Queue outbound POS reserves after an online shop sale."""
+    events = []
+    connection = active_connection()
+    for item in order.items.all():
+        sku = item.sku
+        if not sku:
+            continue
+        events.append(
+            SyncEvent.objects.create(
+                connection=connection,
+                direction=SyncEvent.Direction.OUTBOUND,
+                status=SyncEvent.Status.PENDING,
+                sku=sku,
+                quantity=item.quantity,
+                external_id=order.number,
+                payload={"order_id": str(order.pk), "order_number": order.number},
+            )
+        )
+    return events
+
+
+def _post_reserve(connection: POSConnection, event: SyncEvent) -> None:
+    base = (connection.api_base_url or settings.POS_API_BASE_URL or "").rstrip("/")
+    token = connection.api_token or (settings.POS_API_TOKEN or "")
+    if not base:
+        raise POSSyncError("POS API base URL is not configured.")
+    headers = {"Content-Type": "application/json"}
+    if token:
+        headers["Authorization"] = f"Bearer {token}"
+    response = requests.post(
+        f"{base}/inventory/reserve",
+        json={
+            "sku": event.sku,
+            "quantity": event.quantity,
+            "external_id": event.external_id,
+            "source": "online",
+        },
+        headers=headers,
+        timeout=15,
+    )
+    response.raise_for_status()
+
+
+def dispatch_pending_outbound() -> int:
+    sent = 0
+    for event in SyncEvent.objects.filter(
+        direction=SyncEvent.Direction.OUTBOUND,
+        status=SyncEvent.Status.PENDING,
+    )[:50]:
+        connection = event.connection or active_connection()
+        try:
+            if connection is None:
+                raise POSSyncError("No active POS connection.")
+            _post_reserve(connection, event)
+        except Exception as exc:  # noqa: BLE001
+            logger.exception("POS outbound failed for %s", event.sku)
+            event.status = SyncEvent.Status.FAILED
+            event.error = str(exc)
+            event.save(update_fields=["status", "error", "updated_at"])
+        else:
+            event.status = SyncEvent.Status.DONE
+            event.error = ""
+            event.save(update_fields=["status", "error", "updated_at"])
+            sent += 1
+    return sent

site/pos_sync/templates/pos_sync/list.html

@@ -0,0 +1,22 @@
+{% extends "portal_base.html" %}
+{% block title %}POS sync · Portal{% endblock %}
+{% block topbar_title %}POS sync{% endblock %}
+{% block portal_content %}
+<p class="muted">Inbound POS sales decrement shop stock. Online sales queue outbound reserves.</p>
+<table class="table">
+  <thead><tr><th>When</th><th>Direction</th><th>SKU</th><th>Qty</th><th>Status</th></tr></thead>
+  <tbody>
+    {% for event in events %}
+    <tr>
+      <td>{{ event.created_at }}</td>
+      <td>{{ event.get_direction_display }}</td>
+      <td>{{ event.sku }}</td>
+      <td>{{ event.quantity }}</td>
+      <td>{{ event.get_status_display }}</td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="5" class="empty-state">No sync events yet.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+{% endblock %}

site/pos_sync/tests.py

@@ -0,0 +1,115 @@
+from decimal import Decimal
+from unittest.mock import patch
+
+from django.contrib.auth import get_user_model
+from django.test import Client, TestCase, override_settings
+from django.urls import reverse
+
+from pos_sync.models import POSConnection, SyncEvent
+from pos_sync.services import apply_inbound_sale, dispatch_pending_outbound, enqueue_online_sale
+from shop.models import Product
+from shop.services import add_to_cart, create_order_from_cart, mark_paid
+
+
+class POSInboundTests(TestCase):
+    def setUp(self):
+        self.product = Product.objects.create(
+            name="Booster pack",
+            sku="TCG-PACK",
+            price=Decimal("4.99"),
+            stock_qty=10,
+            is_published=True,
+        )
+
+    def test_inbound_sale_decrements_stock(self):
+        event = apply_inbound_sale(sku="tcg-pack", quantity=3, external_id="pos-1")
+        self.product.refresh_from_db()
+        self.assertEqual(self.product.stock_qty, 7)
+        self.assertEqual(event.status, SyncEvent.Status.DONE)
+
+    @override_settings(POS_WEBHOOK_SECRET="pos-secret")
+    def test_webhook_requires_secret_and_updates_stock(self):
+        url = reverse("pos_sync:inventory_webhook")
+        anon = Client().post(
+            url,
+            data='{"sku":"TCG-PACK","quantity":1}',
+            content_type="application/json",
+        )
+        self.assertEqual(anon.status_code, 401)
+        ok = Client().post(
+            url,
+            data='{"sku":"TCG-PACK","quantity":2,"external_id":"reg-9"}',
+            content_type="application/json",
+            HTTP_AUTHORIZATION="Bearer pos-secret",
+        )
+        self.assertEqual(ok.status_code, 200)
+        self.product.refresh_from_db()
+        self.assertEqual(self.product.stock_qty, 8)
+
+
+class POSOutboundTests(TestCase):
+    def setUp(self):
+        self.product = Product.objects.create(
+            name="Figure",
+            sku="FIG-1",
+            price=Decimal("12.00"),
+            stock_qty=5,
+            is_published=True,
+        )
+        self.connection = POSConnection.objects.create(
+            name="Counter",
+            api_base_url="https://pos.example.com",
+            api_token="tok",
+            is_active=True,
+        )
+
+    def test_paid_order_enqueues_outbound(self):
+        session = self.client.session
+        add_to_cart(session, self.product, 1)
+        session.save()
+        order = create_order_from_cart(self.client.session, email="a@example.com")
+        mark_paid(order)
+        event = SyncEvent.objects.get(direction=SyncEvent.Direction.OUTBOUND)
+        self.assertEqual(event.sku, "FIG-1")
+        self.assertEqual(event.status, SyncEvent.Status.PENDING)
+
+    def test_dispatch_posts_reserve(self):
+        enqueue_online_sale(
+            type(
+                "O",
+                (),
+                {
+                    "number": "ORD-1",
+                    "pk": "x",
+                    "items": type(
+                        "M",
+                        (),
+                        {
+                            "all": lambda self: [
+                                type("I", (), {"sku": "FIG-1", "quantity": 1})()
+                            ]
+                        },
+                    )(),
+                },
+            )()
+        )
+        with patch("pos_sync.services.requests.post") as post:
+            post.return_value.raise_for_status = lambda: None
+            sent = dispatch_pending_outbound()
+        self.assertEqual(sent, 1)
+        post.assert_called_once()
+        self.assertIn("/inventory/reserve", post.call_args.args[0])
+        event = SyncEvent.objects.get()
+        self.assertEqual(event.status, SyncEvent.Status.DONE)
+
+
+class POSPortalTests(TestCase):
+    def test_list_requires_login(self):
+        self.assertEqual(Client().get(reverse("pos_sync:event_list")).status_code, 302)
+
+    def test_list_ok_when_logged_in(self):
+        User = get_user_model()
+        User.objects.create_user("clerk", password="test-pass-123")
+        client = Client()
+        client.login(username="clerk", password="test-pass-123")
+        self.assertEqual(client.get(reverse("pos_sync:event_list")).status_code, 200)

site/pos_sync/urls.py

@@ -0,0 +1,10 @@
+from django.urls import path
+
+from pos_sync import views
+
+app_name = "pos_sync"
+
+urlpatterns = [
+    path("", views.event_list, name="event_list"),
+    path("webhooks/inventory/", views.inventory_webhook, name="inventory_webhook"),
+]

site/pos_sync/views.py

@@ -0,0 +1,70 @@
+import json
+import logging
+
+from django.conf import settings
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponse, HttpResponseBadRequest, JsonResponse
+from django.shortcuts import render
+from django.views.decorators.csrf import csrf_exempt
+from django.views.decorators.http import require_http_methods
+
+from pos_sync.models import POSConnection, SyncEvent
+from pos_sync.services import POSSyncError, apply_inbound_sale
+
+logger = logging.getLogger(__name__)
+
+
+def _authorized(request) -> bool:
+    expected = (settings.POS_WEBHOOK_SECRET or "").strip()
+    if not expected:
+        conn = POSConnection.objects.filter(is_active=True).exclude(
+            webhook_secret=""
+        ).first()
+        expected = (conn.webhook_secret if conn else "").strip()
+    if not expected:
+        return False
+    header = request.headers.get("Authorization", "")
+    token = ""
+    if header.startswith("Bearer "):
+        token = header[7:].strip()
+    token = token or request.GET.get("token") or ""
+    return token == expected
+
+
+@login_required
+def event_list(request):
+    events = SyncEvent.objects.select_related("connection")[:200]
+    connections = POSConnection.objects.all()
+    return render(
+        request,
+        "pos_sync/list.html",
+        {"events": events, "connections": connections},
+    )
+
+
+@csrf_exempt
+@require_http_methods(["POST"])
+def inventory_webhook(request):
+    if not _authorized(request):
+        return HttpResponse("unauthorized", status=401)
+    try:
+        payload = json.loads(request.body.decode() or "{}")
+    except json.JSONDecodeError:
+        return HttpResponseBadRequest("invalid json")
+    sku = payload.get("sku") or payload.get("SKU") or ""
+    try:
+        quantity = int(payload.get("quantity") or payload.get("qty") or 0)
+    except (TypeError, ValueError):
+        return HttpResponseBadRequest("invalid quantity")
+    external_id = str(payload.get("external_id") or payload.get("id") or "")
+    try:
+        event = apply_inbound_sale(
+            sku=sku,
+            quantity=quantity,
+            external_id=external_id,
+            payload=payload,
+        )
+    except POSSyncError as exc:
+        logger.warning("POS inbound rejected: %s", exc)
+        return JsonResponse({"ok": False, "error": str(exc)}, status=400)
+    return JsonResponse({"ok": True, "id": str(event.pk), "status": event.status})

site/public/context_processors.py

@@ -63,6 +63,15 @@ def tianji_tracking(request):
         nav_section = "social_accounts"
     elif namespace == "social":
         nav_section = "social"
+    elif namespace == "shop_portal":
+        if url_name.startswith("product"):
+            nav_section = "shop_products"
+        elif url_name.startswith("order"):
+            nav_section = "shop_orders"
+        elif url_name == "sales":
+            nav_section = "shop_sales"
+    elif namespace == "shop":
+        nav_section = "shop"
 
     return {
         "tianji_enabled": getattr(settings, "TIANJI_ENABLED", False)

site/public/views.py

@@ -70,6 +70,10 @@ def sitemap_xml(request):
     from django.apps import apps as django_apps
     if django_apps.is_installed("blog"):
         paths.append(("blog:list", "0.7", "weekly"))
+    if django_apps.is_installed("shop"):
+        paths.append(("shop:list", "0.8", "weekly"))
+    if django_apps.is_installed("events"):
+        paths.append(("events:list", "0.8", "weekly"))
     urls = []
     for name, priority, changefreq in paths:
         path = reverse(name)

site/shipping/admin.py

@@ -0,0 +1,10 @@
+from django.contrib import admin
+
+from shipping.models import Shipment
+
+
+@admin.register(Shipment)
+class ShipmentAdmin(admin.ModelAdmin):
+    list_display = ("order", "status", "carrier", "tracking_number")
+    list_filter = ("status", "carrier")
+    search_fields = ("tracking_number", "order__number")

site/shipping/apps.py

@@ -0,0 +1,12 @@
+from django.apps import AppConfig
+
+
+class ShippingConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "shipping"
+    verbose_name = "Shipping automation"
+
+    def ready(self):
+        from shipping import hooks
+
+        hooks.register()

site/shipping/hooks.py

@@ -0,0 +1,31 @@
+from core.registry import (
+    register_dashboard_collector,
+    register_feature,
+    register_portal_nav,
+)
+
+
+def register() -> None:
+    register_feature("shipping")
+    register_portal_nav(
+        section="shipping",
+        label="Shipping",
+        url_name="shipping:shipment_list",
+        group="Retail",
+        order=50,
+    )
+    register_dashboard_collector(_dashboard)
+
+
+def _dashboard(request) -> dict:
+    from shipping.models import Shipment
+    from shop.models import Order
+
+    labeled = Shipment.objects.filter(status=Shipment.Status.LABELED).values_list(
+        "order_id", flat=True
+    )
+    return {
+        "unshipped_orders": Order.objects.filter(status=Order.Status.PAID)
+        .exclude(pk__in=labeled)
+        .count()
+    }

site/shipping/migrations/0001_initial.py

@@ -0,0 +1,40 @@
+# Generated by Django 6.1 on 2026-09-06 11:17
+
+import django.db.models.deletion
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('shop', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Shipment',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('status', models.CharField(choices=[('draft', 'Draft'), ('rated', 'Rated'), ('labeled', 'Labeled'), ('void', 'Void')], default='draft', max_length=16)),
+                ('carrier', models.CharField(blank=True, max_length=32)),
+                ('service', models.CharField(blank=True, max_length=64)),
+                ('tracking_number', models.CharField(blank=True, max_length=64)),
+                ('label_url', models.URLField(blank=True)),
+                ('rate_amount', models.DecimalField(blank=True, decimal_places=2, max_digits=10, null=True)),
+                ('currency', models.CharField(default='usd', max_length=8)),
+                ('provider_shipment_id', models.CharField(blank=True, max_length=255)),
+                ('rates', models.JSONField(blank=True, default=list)),
+                ('weight_oz', models.PositiveIntegerField(default=16)),
+                ('notes', models.TextField(blank=True)),
+                ('order', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='shipments', to='shop.order')),
+            ],
+            options={
+                'ordering': ['-created_at'],
+            },
+        ),
+    ]

site/shipping/models.py

@@ -0,0 +1,33 @@
+from django.db import models
+
+from core.models import TimeStampedModel, UUIDPrimaryKeyModel
+from shop.models import Order
+
+
+class Shipment(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Status(models.TextChoices):
+        DRAFT = "draft", "Draft"
+        RATED = "rated", "Rated"
+        LABELED = "labeled", "Labeled"
+        VOID = "void", "Void"
+
+    order = models.ForeignKey(Order, on_delete=models.PROTECT, related_name="shipments")
+    status = models.CharField(
+        max_length=16, choices=Status.choices, default=Status.DRAFT
+    )
+    carrier = models.CharField(max_length=32, blank=True)
+    service = models.CharField(max_length=64, blank=True)
+    tracking_number = models.CharField(max_length=64, blank=True)
+    label_url = models.URLField(blank=True)
+    rate_amount = models.DecimalField(max_digits=10, decimal_places=2, null=True, blank=True)
+    currency = models.CharField(max_length=8, default="usd")
+    provider_shipment_id = models.CharField(max_length=255, blank=True)
+    rates = models.JSONField(default=list, blank=True)
+    weight_oz = models.PositiveIntegerField(default=16)
+    notes = models.TextField(blank=True)
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return f"{self.order.number} · {self.tracking_number or self.status}"

site/shipping/services.py

@@ -0,0 +1,184 @@
+"""EasyPost-style rates/labels plus Pirate Ship CSV export."""
+
+from __future__ import annotations
+
+import csv
+import io
+import logging
+from decimal import Decimal
+
+import requests
+from django.conf import settings
+
+from shipping.models import Shipment
+from shop.models import Order
+
+logger = logging.getLogger(__name__)
+
+
+class ShippingError(RuntimeError):
+    pass
+
+
+def _easypost_key() -> str:
+    return (getattr(settings, "EASYPOST_API_KEY", "") or "").strip()
+
+
+def quote_rates(shipment: Shipment) -> list[dict]:
+    """Return carrier rates. Uses EasyPost when configured; otherwise a USPS stub."""
+    key = _easypost_key()
+    if not key:
+        rates = [
+            {
+                "id": "stub-usps-ground",
+                "carrier": "USPS",
+                "service": "GroundAdvantage",
+                "rate": "5.40",
+                "currency": "USD",
+            },
+            {
+                "id": "stub-usps-priority",
+                "carrier": "USPS",
+                "service": "Priority",
+                "rate": "9.80",
+                "currency": "USD",
+            },
+        ]
+        shipment.rates = rates
+        shipment.status = Shipment.Status.RATED
+        shipment.save(update_fields=["rates", "status", "updated_at"])
+        return rates
+
+    addr = shipment.order.shipping_address or {}
+    response = requests.post(
+        "https://api.easypost.com/v2/shipments",
+        auth=(key, ""),
+        json={
+            "shipment": {
+                "to_address": {
+                    "name": shipment.order.customer_name or shipment.order.email,
+                    "street1": addr.get("line1") or "",
+                    "street2": addr.get("line2") or "",
+                    "city": addr.get("city") or "",
+                    "state": addr.get("state") or "",
+                    "zip": addr.get("zip") or "",
+                    "country": addr.get("country") or "US",
+                },
+                "from_address": {
+                    "name": settings.SITE_NAME,
+                    "street1": getattr(settings, "SHIP_FROM_LINE1", "") or "",
+                    "city": getattr(settings, "SHIP_FROM_CITY", "") or "",
+                    "state": getattr(settings, "SHIP_FROM_STATE", "") or "",
+                    "zip": getattr(settings, "SHIP_FROM_ZIP", "") or "",
+                    "country": "US",
+                },
+                "parcel": {"weight": shipment.weight_oz},
+            }
+        },
+        timeout=20,
+    )
+    response.raise_for_status()
+    data = response.json()
+    rates = data.get("rates") or []
+    shipment.provider_shipment_id = data.get("id") or ""
+    shipment.rates = rates
+    shipment.status = Shipment.Status.RATED
+    shipment.save(
+        update_fields=["provider_shipment_id", "rates", "status", "updated_at"]
+    )
+    return rates
+
+
+def buy_label(shipment: Shipment, *, rate_id: str = "") -> Shipment:
+    rates = shipment.rates or quote_rates(shipment)
+    chosen = None
+    if rate_id:
+        chosen = next((r for r in rates if str(r.get("id")) == str(rate_id)), None)
+    if chosen is None and rates:
+        chosen = rates[0]
+    if chosen is None:
+        raise ShippingError("No shipping rates available.")
+
+    key = _easypost_key()
+    if key and shipment.provider_shipment_id:
+        response = requests.post(
+            f"https://api.easypost.com/v2/shipments/{shipment.provider_shipment_id}/buy",
+            auth=(key, ""),
+            json={"rate": {"id": chosen.get("id")}},
+            timeout=20,
+        )
+        response.raise_for_status()
+        data = response.json()
+        postage = data.get("postage_label") or {}
+        tracking = data.get("tracking_code") or ""
+        shipment.label_url = postage.get("label_url") or ""
+        shipment.tracking_number = tracking
+    else:
+        shipment.tracking_number = f"STUB{shipment.order.number[-6:]}"
+        shipment.label_url = ""
+
+    shipment.carrier = chosen.get("carrier") or ""
+    shipment.service = chosen.get("service") or ""
+    try:
+        shipment.rate_amount = Decimal(str(chosen.get("rate") or "0"))
+    except Exception:
+        shipment.rate_amount = None
+    shipment.status = Shipment.Status.LABELED
+    shipment.save(
+        update_fields=[
+            "carrier",
+            "service",
+            "tracking_number",
+            "label_url",
+            "rate_amount",
+            "status",
+            "updated_at",
+        ]
+    )
+    return shipment
+
+
+def create_shipment_for_order(order: Order, *, weight_oz: int = 16) -> Shipment:
+    if order.status not in {Order.Status.PAID, Order.Status.FULFILLED}:
+        raise ShippingError("Ship paid orders only.")
+    return Shipment.objects.create(order=order, weight_oz=weight_oz)
+
+
+def pirate_ship_csv(orders=None) -> str:
+    """CSV Pirate Ship can map: name, address, city, state, zip, email."""
+    if orders is None:
+        shipped = Shipment.objects.filter(
+            status=Shipment.Status.LABELED
+        ).values_list("order_id", flat=True)
+        orders = Order.objects.filter(status=Order.Status.PAID).exclude(pk__in=shipped)
+    buffer = io.StringIO()
+    writer = csv.writer(buffer)
+    writer.writerow(
+        [
+            "Order Number",
+            "Name",
+            "Address 1",
+            "Address 2",
+            "City",
+            "State",
+            "Zip",
+            "Country",
+            "Email",
+        ]
+    )
+    for order in orders:
+        addr = order.shipping_address or {}
+        writer.writerow(
+            [
+                order.number,
+                order.customer_name or order.email,
+                addr.get("line1") or "",
+                addr.get("line2") or "",
+                addr.get("city") or "",
+                addr.get("state") or "",
+                addr.get("zip") or "",
+                addr.get("country") or "US",
+                order.email,
+            ]
+        )
+    return buffer.getvalue()

site/shipping/templates/shipping/detail.html

@@ -0,0 +1,25 @@
+{% extends "portal_base.html" %}
+{% block title %}{{ shipment.order.number }} · Shipping{% endblock %}
+{% block topbar_title %}{{ shipment.order.number }}{% endblock %}
+{% block portal_content %}
+<p>{{ shipment.order.email }} · {{ shipment.get_status_display }}</p>
+{% if shipment.tracking_number %}<p>Tracking: {{ shipment.tracking_number }}</p>{% endif %}
+{% if shipment.label_url %}<p><a href="{{ shipment.label_url }}">Download label</a></p>{% endif %}
+{% if shipment.status != 'labeled' %}
+<form method="post" action="{% url 'shipping:shipment_buy' shipment.pk %}">
+  {% csrf_token %}
+  {% for rate in shipment.rates %}
+  <label>
+    <input type="radio" name="rate_id" value="{{ rate.id }}" {% if forloop.first %}checked{% endif %}>
+    {{ rate.carrier }} {{ rate.service }} — {{ rate.rate }} {{ rate.currency }}
+  </label><br>
+  {% empty %}
+  <p>No rates yet.</p>
+  {% endfor %}
+  {% if shipment.rates %}
+  <button class="btn btn-primary" type="submit">Buy label</button>
+  {% endif %}
+</form>
+{% endif %}
+<p><a href="{% url 'shipping:shipment_list' %}">← All shipments</a></p>
+{% endblock %}

site/shipping/templates/shipping/list.html

@@ -0,0 +1,43 @@
+{% extends "portal_base.html" %}
+{% block title %}Shipping · Portal{% endblock %}
+{% block topbar_title %}Shipping{% endblock %}
+{% block portal_content %}
+<p><a class="btn btn-ghost" href="{% url 'shipping:pirate_ship_export' %}">Pirate Ship CSV</a></p>
+<h2>Unshipped paid orders</h2>
+<table class="table">
+  <thead><tr><th>Order</th><th>Email</th><th></th></tr></thead>
+  <tbody>
+    {% for order in unshipped %}
+    <tr>
+      <td>{{ order.number }}</td>
+      <td>{{ order.email }}</td>
+      <td>
+        <form method="post" action="{% url 'shipping:shipment_create' %}">
+          {% csrf_token %}
+          <input type="hidden" name="order" value="{{ order.pk }}">
+          <input name="weight_oz" type="number" min="1" value="16" style="width:5rem"> oz
+          <button class="btn btn-primary" type="submit">Quote rates</button>
+        </form>
+      </td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="3" class="empty-state">No paid orders waiting to ship.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+<h2>Shipments</h2>
+<table class="table">
+  <thead><tr><th>Order</th><th>Status</th><th>Tracking</th></tr></thead>
+  <tbody>
+    {% for shipment in shipments %}
+    <tr>
+      <td><a href="{% url 'shipping:shipment_detail' shipment.pk %}">{{ shipment.order.number }}</a></td>
+      <td>{{ shipment.get_status_display }}</td>
+      <td>{{ shipment.tracking_number|default:"—" }}</td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="3" class="empty-state">No shipments yet.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+{% endblock %}

site/shipping/tests.py

@@ -0,0 +1,84 @@
+from decimal import Decimal
+
+from django.contrib.auth import get_user_model
+from django.test import Client, TestCase
+from django.urls import reverse
+
+from shipping.models import Shipment
+from shipping.services import buy_label, create_shipment_for_order, pirate_ship_csv, quote_rates
+from shop.models import Order
+
+
+class ShippingServiceTests(TestCase):
+    def setUp(self):
+        self.order = Order.objects.create(
+            number="ORD-20260101-001",
+            email="buyer@example.com",
+            customer_name="Pat Lee",
+            status=Order.Status.PAID,
+            amount=Decimal("18.00"),
+            shipping_address={
+                "line1": "123 Main",
+                "city": "Aurora",
+                "state": "IL",
+                "zip": "60506",
+                "country": "US",
+            },
+        )
+
+    def test_quote_and_buy_stub_label(self):
+        shipment = create_shipment_for_order(self.order)
+        rates = quote_rates(shipment)
+        self.assertGreaterEqual(len(rates), 1)
+        shipment.refresh_from_db()
+        self.assertEqual(shipment.status, Shipment.Status.RATED)
+        buy_label(shipment, rate_id=rates[0]["id"])
+        shipment.refresh_from_db()
+        self.assertEqual(shipment.status, Shipment.Status.LABELED)
+        self.assertTrue(shipment.tracking_number)
+
+    def test_pirate_ship_csv_includes_unshipped(self):
+        csv_body = pirate_ship_csv()
+        self.assertIn("ORD-20260101-001", csv_body)
+        self.assertIn("123 Main", csv_body)
+        self.assertIn("buyer@example.com", csv_body)
+
+    def test_csv_omits_labeled_orders(self):
+        shipment = create_shipment_for_order(self.order)
+        quote_rates(shipment)
+        buy_label(shipment)
+        self.assertNotIn(self.order.number, pirate_ship_csv())
+
+
+class ShippingPortalTests(TestCase):
+    def setUp(self):
+        User = get_user_model()
+        self.user = User.objects.create_user("shipper", password="test-pass-123")
+        self.client = Client()
+        self.client.login(username="shipper", password="test-pass-123")
+        self.order = Order.objects.create(
+            number="ORD-20260101-002",
+            email="a@example.com",
+            status=Order.Status.PAID,
+            amount=Decimal("9.00"),
+            shipping_address={"line1": "9 Oak", "city": "Town", "state": "IL", "zip": "60189"},
+        )
+
+    def test_list_requires_login(self):
+        self.assertEqual(Client().get(reverse("shipping:shipment_list")).status_code, 302)
+
+    def test_create_shipment_from_portal(self):
+        response = self.client.post(
+            reverse("shipping:shipment_create"),
+            {"order": str(self.order.pk), "weight_oz": "8"},
+        )
+        self.assertEqual(response.status_code, 302)
+        shipment = Shipment.objects.get()
+        self.assertEqual(shipment.weight_oz, 8)
+        self.assertEqual(shipment.status, Shipment.Status.RATED)
+
+    def test_csv_export(self):
+        response = self.client.get(reverse("shipping:pirate_ship_export"))
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"], "text/csv")
+        self.assertIn(b"ORD-20260101-002", response.content)

site/shipping/urls.py

@@ -0,0 +1,13 @@
+from django.urls import path
+
+from shipping import views
+
+app_name = "shipping"
+
+urlpatterns = [
+    path("", views.shipment_list, name="shipment_list"),
+    path("new/", views.shipment_create, name="shipment_create"),
+    path("export/pirate-ship.csv", views.pirate_ship_export, name="pirate_ship_export"),
+    path("<uuid:pk>/", views.shipment_detail, name="shipment_detail"),
+    path("<uuid:pk>/buy/", views.shipment_buy, name="shipment_buy"),
+]

site/shipping/views.py

@@ -0,0 +1,86 @@
+import logging
+
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponse
+from django.shortcuts import get_object_or_404, redirect, render
+from django.views.decorators.http import require_http_methods, require_POST
+
+from shipping.models import Shipment
+from shipping.services import (
+    ShippingError,
+    buy_label,
+    create_shipment_for_order,
+    pirate_ship_csv,
+    quote_rates,
+)
+from shop.models import Order
+
+logger = logging.getLogger(__name__)
+
+
+@login_required
+def shipment_list(request):
+    shipments = Shipment.objects.select_related("order")[:200]
+    labeled = Shipment.objects.filter(status=Shipment.Status.LABELED).values_list(
+        "order_id", flat=True
+    )
+    unshipped = Order.objects.filter(status=Order.Status.PAID).exclude(pk__in=labeled)
+    return render(
+        request,
+        "shipping/list.html",
+        {"shipments": shipments, "unshipped": unshipped},
+    )
+
+
+@login_required
+@require_POST
+def shipment_create(request):
+    order = get_object_or_404(Order, pk=request.POST.get("order"))
+    try:
+        weight = int(request.POST.get("weight_oz") or "16")
+    except ValueError:
+        weight = 16
+    try:
+        shipment = create_shipment_for_order(order, weight_oz=weight)
+        quote_rates(shipment)
+    except ShippingError as exc:
+        messages.error(request, str(exc))
+        return redirect("shipping:shipment_list")
+    except Exception as exc:  # noqa: BLE001
+        logger.exception("rate quote failed")
+        messages.error(request, f"Could not quote rates: {exc}")
+        return redirect("shipping:shipment_list")
+    return redirect("shipping:shipment_detail", pk=shipment.pk)
+
+
+@login_required
+def shipment_detail(request, pk):
+    shipment = get_object_or_404(Shipment.objects.select_related("order"), pk=pk)
+    return render(request, "shipping/detail.html", {"shipment": shipment})
+
+
+@login_required
+@require_POST
+def shipment_buy(request, pk):
+    shipment = get_object_or_404(Shipment, pk=pk)
+    rate_id = (request.POST.get("rate_id") or "").strip()
+    try:
+        buy_label(shipment, rate_id=rate_id)
+    except ShippingError as exc:
+        messages.error(request, str(exc))
+    except Exception as exc:  # noqa: BLE001
+        logger.exception("buy label failed")
+        messages.error(request, f"Could not buy label: {exc}")
+    else:
+        messages.success(request, f"Label created for {shipment.order.number}.")
+    return redirect("shipping:shipment_detail", pk=shipment.pk)
+
+
+@login_required
+@require_http_methods(["GET"])
+def pirate_ship_export(request):
+    body = pirate_ship_csv()
+    response = HttpResponse(body, content_type="text/csv")
+    response["Content-Disposition"] = 'attachment; filename="pirate-ship-orders.csv"'
+    return response

site/shop/admin.py

@@ -0,0 +1,24 @@
+from django.contrib import admin
+
+from shop.models import Order, OrderItem, Product
+
+
+@admin.register(Product)
+class ProductAdmin(admin.ModelAdmin):
+    list_display = ("name", "sku", "price", "stock_qty", "fulfillment", "is_published")
+    list_filter = ("fulfillment", "is_published")
+    search_fields = ("name", "sku")
+    prepopulated_fields = {"slug": ("name",)}
+
+
+class OrderItemInline(admin.TabularInline):
+    model = OrderItem
+    extra = 0
+
+
+@admin.register(Order)
+class OrderAdmin(admin.ModelAdmin):
+    list_display = ("number", "email", "amount", "status", "created_at")
+    list_filter = ("status",)
+    search_fields = ("number", "email", "customer_name")
+    inlines = [OrderItemInline]

site/shop/apps.py

@@ -0,0 +1,12 @@
+from django.apps import AppConfig
+
+
+class ShopConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "shop"
+    verbose_name = "E-commerce"
+
+    def ready(self):
+        from shop import hooks
+
+        hooks.register()

site/shop/hooks.py

@@ -0,0 +1,53 @@
+from core.registry import (
+    register_dashboard_collector,
+    register_feature,
+    register_portal_nav,
+    register_public_nav,
+)
+
+
+def register() -> None:
+    register_feature("shop")
+    register_public_nav(section="shop", label="Shop", url_name="shop:list", order=30)
+    register_portal_nav(
+        section="shop_sales",
+        label="Sales",
+        url_name="shop_portal:sales",
+        group="Retail",
+        order=5,
+    )
+    register_portal_nav(
+        section="shop_products",
+        label="Products",
+        url_name="shop_portal:product_list",
+        group="Retail",
+        order=10,
+    )
+    register_portal_nav(
+        section="shop_orders",
+        label="Orders",
+        url_name="shop_portal:order_list",
+        group="Retail",
+        order=20,
+    )
+    register_dashboard_collector(_dashboard)
+
+
+def _dashboard(request) -> dict:
+    from shop.models import Order, Product
+    from shop.stats import sales_summary
+
+    sales = sales_summary()
+    return {
+        "open_shop_orders": Order.objects.filter(
+            status__in=[Order.Status.OPEN, Order.Status.PAID]
+        ).count(),
+        "low_stock_products": Product.objects.filter(
+            is_published=True,
+            track_inventory=True,
+            fulfillment=Product.Fulfillment.STOCKED,
+            stock_qty__lte=3,
+        ).count(),
+        "shop_sales_30d": sales["order_count"],
+        "shop_revenue_30d": sales["revenue"],
+    }

site/shop/migrations/0001_initial.py

@@ -0,0 +1,80 @@
+# Generated by Django 6.1 on 2026-09-06 11:17
+
+import django.db.models.deletion
+import uuid
+from decimal import Decimal
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('number', models.CharField(max_length=32, unique=True)),
+                ('email', models.EmailField(max_length=254)),
+                ('customer_name', models.CharField(blank=True, max_length=200)),
+                ('status', models.CharField(choices=[('draft', 'Draft'), ('open', 'Open'), ('paid', 'Paid'), ('fulfilled', 'Fulfilled'), ('cancelled', 'Cancelled')], default='draft', max_length=16)),
+                ('amount', models.DecimalField(decimal_places=2, default=Decimal('0'), max_digits=10)),
+                ('currency', models.CharField(default='usd', max_length=8)),
+                ('shipping_address', models.JSONField(blank=True, default=dict)),
+                ('stripe_checkout_session_id', models.CharField(blank=True, max_length=255)),
+                ('hosted_checkout_url', models.URLField(blank=True)),
+                ('paid_at', models.DateTimeField(blank=True, null=True)),
+                ('notes', models.TextField(blank=True)),
+            ],
+            options={
+                'ordering': ['-created_at'],
+            },
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.CharField(max_length=200)),
+                ('slug', models.SlugField(max_length=220, unique=True)),
+                ('sku', models.CharField(max_length=64, unique=True)),
+                ('description', models.TextField(blank=True)),
+                ('price', models.DecimalField(decimal_places=2, max_digits=10)),
+                ('currency', models.CharField(default='usd', max_length=8)),
+                ('fulfillment', models.CharField(choices=[('stocked', 'On-hand stock'), ('made_to_order', 'Made to order')], default='stocked', max_length=16)),
+                ('stock_qty', models.IntegerField(default=0)),
+                ('print_minutes', models.PositiveIntegerField(default=0, help_text='Estimated print time per unit (made-to-order).')),
+                ('filament_grams', models.PositiveIntegerField(default=0)),
+                ('is_published', models.BooleanField(default=False)),
+                ('track_inventory', models.BooleanField(default=True)),
+            ],
+            options={
+                'ordering': ['name'],
+            },
+        ),
+        migrations.CreateModel(
+            name='OrderItem',
+            fields=[
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.CharField(max_length=200)),
+                ('sku', models.CharField(max_length=64)),
+                ('quantity', models.PositiveIntegerField(default=1)),
+                ('unit_price', models.DecimalField(decimal_places=2, max_digits=10)),
+                ('print_minutes', models.PositiveIntegerField(default=0)),
+                ('order', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='shop.order')),
+                ('product', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='order_items', to='shop.product')),
+            ],
+            options={
+                'ordering': ['created_at'],
+            },
+        ),
+    ]

site/shop/models.py

@@ -0,0 +1,118 @@
+from decimal import Decimal
+
+from django.db import models
+from django.urls import reverse
+from django.utils.text import slugify
+
+from core.models import TimeStampedModel, UUIDPrimaryKeyModel
+
+
+class Product(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Fulfillment(models.TextChoices):
+        STOCKED = "stocked", "On-hand stock"
+        MADE_TO_ORDER = "made_to_order", "Made to order"
+
+    name = models.CharField(max_length=200)
+    slug = models.SlugField(max_length=220, unique=True)
+    sku = models.CharField(max_length=64, unique=True)
+    description = models.TextField(blank=True)
+    price = models.DecimalField(max_digits=10, decimal_places=2)
+    currency = models.CharField(max_length=8, default="usd")
+    fulfillment = models.CharField(
+        max_length=16,
+        choices=Fulfillment.choices,
+        default=Fulfillment.STOCKED,
+    )
+    stock_qty = models.IntegerField(default=0)
+    print_minutes = models.PositiveIntegerField(
+        default=0,
+        help_text="Estimated print time per unit (made-to-order).",
+    )
+    filament_grams = models.PositiveIntegerField(default=0)
+    is_published = models.BooleanField(default=False)
+    track_inventory = models.BooleanField(default=True)
+
+    class Meta:
+        ordering = ["name"]
+
+    def __str__(self) -> str:
+        return f"{self.name} ({self.sku})"
+
+    def get_absolute_url(self) -> str:
+        return reverse("shop:detail", kwargs={"slug": self.slug})
+
+    @property
+    def amount_cents(self) -> int:
+        return int((self.price * Decimal("100")).quantize(Decimal("1")))
+
+    def save(self, *args, **kwargs):
+        if not self.slug:
+            base = slugify(self.name)[:200] or "product"
+            slug = base
+            n = 2
+            while Product.objects.filter(slug=slug).exclude(pk=self.pk).exists():
+                slug = f"{base}-{n}"
+                n += 1
+            self.slug = slug
+        if not self.sku:
+            self.sku = (self.slug or "sku").upper().replace("-", "")[:64]
+        super().save(*args, **kwargs)
+
+
+class Order(UUIDPrimaryKeyModel, TimeStampedModel):
+    class Status(models.TextChoices):
+        DRAFT = "draft", "Draft"
+        OPEN = "open", "Open"
+        PAID = "paid", "Paid"
+        FULFILLED = "fulfilled", "Fulfilled"
+        CANCELLED = "cancelled", "Cancelled"
+
+    number = models.CharField(max_length=32, unique=True)
+    email = models.EmailField()
+    customer_name = models.CharField(max_length=200, blank=True)
+    status = models.CharField(
+        max_length=16, choices=Status.choices, default=Status.DRAFT
+    )
+    amount = models.DecimalField(max_digits=10, decimal_places=2, default=Decimal("0"))
+    currency = models.CharField(max_length=8, default="usd")
+    shipping_address = models.JSONField(default=dict, blank=True)
+    stripe_checkout_session_id = models.CharField(max_length=255, blank=True)
+    hosted_checkout_url = models.URLField(blank=True)
+    paid_at = models.DateTimeField(null=True, blank=True)
+    notes = models.TextField(blank=True)
+
+    class Meta:
+        ordering = ["-created_at"]
+
+    def __str__(self) -> str:
+        return f"{self.number} · {self.email} · {self.amount}"
+
+    @property
+    def amount_cents(self) -> int:
+        return int((self.amount * Decimal("100")).quantize(Decimal("1")))
+
+
+class OrderItem(UUIDPrimaryKeyModel, TimeStampedModel):
+    order = models.ForeignKey(Order, on_delete=models.CASCADE, related_name="items")
+    product = models.ForeignKey(
+        Product,
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name="order_items",
+    )
+    name = models.CharField(max_length=200)
+    sku = models.CharField(max_length=64)
+    quantity = models.PositiveIntegerField(default=1)
+    unit_price = models.DecimalField(max_digits=10, decimal_places=2)
+    print_minutes = models.PositiveIntegerField(default=0)
+
+    class Meta:
+        ordering = ["created_at"]
+
+    def __str__(self) -> str:
+        return f"{self.quantity}× {self.name}"
+
+    @property
+    def line_total(self) -> Decimal:
+        return self.unit_price * self.quantity

site/shop/portal_urls.py

@@ -0,0 +1,20 @@
+from django.urls import path
+
+from shop import views
+
+app_name = "shop_portal"
+
+urlpatterns = [
+    path("sales/", views.portal_sales, name="sales"),
+    path("products/", views.portal_product_list, name="product_list"),
+    path("products/new/", views.portal_product_edit, name="product_new"),
+    path("products/<uuid:pk>/", views.portal_product_edit, name="product_edit"),
+    path(
+        "products/<uuid:pk>/stock/",
+        views.portal_stock_adjust,
+        name="product_stock",
+    ),
+    path("orders/", views.portal_order_list, name="order_list"),
+    path("orders/<uuid:pk>/", views.portal_order_detail, name="order_detail"),
+    path("webhooks/stripe/", views.stripe_webhook, name="stripe_webhook"),
+]

site/shop/public_urls.py

@@ -0,0 +1,16 @@
+from django.urls import path
+
+from shop import views
+
+app_name = "shop"
+
+urlpatterns = [
+    path("", views.product_list, name="list"),
+    path("cart/", views.cart_view, name="cart"),
+    path("cart/add/<slug:slug>/", views.cart_add, name="cart_add"),
+    path("cart/update/<slug:slug>/", views.cart_update, name="cart_update"),
+    path("checkout/", views.checkout, name="checkout"),
+    path("checkout/<uuid:pk>/success/", views.checkout_success, name="checkout_success"),
+    path("checkout/<uuid:pk>/cancel/", views.checkout_cancel, name="checkout_cancel"),
+    path("<slug:slug>/", views.product_detail, name="detail"),
+]

site/shop/services.py

@@ -0,0 +1,305 @@
+"""Catalog, cart, inventory, and Stripe checkout for FEATURE_SHOP."""
+
+from __future__ import annotations
+
+import logging
+from datetime import date
+from decimal import Decimal
+
+from django.conf import settings
+from django.db import transaction
+from django.db.models import F, Sum
+from django.utils import timezone
+
+from shop.models import Order, OrderItem, Product
+
+logger = logging.getLogger(__name__)
+
+CART_SESSION_KEY = "shop_cart"
+
+
+class ShopError(RuntimeError):
+    pass
+
+
+def _stripe():
+    secret = (settings.STRIPE_SECRET_KEY or "").strip()
+    if not secret:
+        raise ShopError("STRIPE_SECRET_KEY is not configured")
+    try:
+        import stripe
+    except ImportError as exc:
+        raise ShopError("stripe package is not installed") from exc
+    stripe.api_key = secret
+    return stripe
+
+
+def next_order_number() -> str:
+    today = date.today().strftime("%Y%m%d")
+    prefix = f"ORD-{today}-"
+    existing = Order.objects.filter(number__startswith=prefix).count()
+    return f"{prefix}{existing + 1:03d}"
+
+
+def get_cart(session) -> dict[str, int]:
+    raw = session.get(CART_SESSION_KEY) or {}
+    cart: dict[str, int] = {}
+    for key, qty in raw.items():
+        try:
+            n = int(qty)
+        except (TypeError, ValueError):
+            continue
+        if n > 0:
+            cart[str(key)] = n
+    return cart
+
+
+def save_cart(session, cart: dict[str, int]) -> None:
+    session[CART_SESSION_KEY] = cart
+    session.modified = True
+
+
+def add_to_cart(session, product: Product, quantity: int = 1) -> dict[str, int]:
+    if quantity < 1:
+        raise ShopError("Quantity must be at least 1.")
+    cart = get_cart(session)
+    pid = str(product.pk)
+    cart[pid] = cart.get(pid, 0) + quantity
+    save_cart(session, cart)
+    return cart
+
+
+def set_cart_qty(session, product: Product, quantity: int) -> dict[str, int]:
+    cart = get_cart(session)
+    pid = str(product.pk)
+    if quantity < 1:
+        cart.pop(pid, None)
+    else:
+        cart[pid] = quantity
+    save_cart(session, cart)
+    return cart
+
+
+def cart_lines(session) -> list[dict]:
+    cart = get_cart(session)
+    products = {
+        str(p.pk): p
+        for p in Product.objects.filter(pk__in=cart.keys(), is_published=True)
+    }
+    lines = []
+    for pid, qty in cart.items():
+        product = products.get(pid)
+        if not product:
+            continue
+        lines.append(
+            {
+                "product": product,
+                "quantity": qty,
+                "unit_price": product.price,
+                "line_total": product.price * qty,
+            }
+        )
+    return lines
+
+
+def cart_total(lines: list[dict]) -> Decimal:
+    return sum((line["line_total"] for line in lines), Decimal("0"))
+
+
+def queued_print_minutes() -> int:
+    total = (
+        OrderItem.objects.filter(
+            order__status__in=[Order.Status.OPEN, Order.Status.PAID],
+            product__fulfillment=Product.Fulfillment.MADE_TO_ORDER,
+        ).aggregate(total=Sum(F("print_minutes") * F("quantity")))["total"]
+        or 0
+    )
+    return int(total)
+
+
+def available_qty(product: Product) -> int | None:
+    """Units that can be sold. None means unlimited (untracked made-to-order)."""
+    if not product.track_inventory:
+        return None
+    if product.fulfillment == Product.Fulfillment.STOCKED:
+        return max(product.stock_qty, 0)
+    limit = int(getattr(settings, "SHOP_PRINT_QUEUE_LIMIT_MINUTES", 0) or 0)
+    if not limit or not product.print_minutes:
+        return None
+    remaining_minutes = max(limit - queued_print_minutes(), 0)
+    return remaining_minutes // product.print_minutes
+
+
+def assert_can_sell(product: Product, quantity: int) -> None:
+    if quantity < 1:
+        raise ShopError("Quantity must be at least 1.")
+    if not product.is_published:
+        raise ShopError("This product is not available.")
+    avail = available_qty(product)
+    if avail is not None and quantity > avail:
+        raise ShopError(f"Only {avail} of {product.name} available.")
+
+
+def adjust_stock(product: Product, delta: int) -> Product:
+    """Increment (positive) or decrement (negative) on-hand stock."""
+    product.stock_qty = product.stock_qty + delta
+    if product.stock_qty < 0:
+        raise ShopError(f"Insufficient stock for {product.sku}.")
+    product.save(update_fields=["stock_qty", "updated_at"])
+    return product
+
+
+def create_order_from_cart(
+    session,
+    *,
+    email: str,
+    customer_name: str = "",
+    shipping_address: dict | None = None,
+    notes: str = "",
+) -> Order:
+    lines = cart_lines(session)
+    if not lines:
+        raise ShopError("Cart is empty.")
+    email = (email or "").strip()
+    if not email:
+        raise ShopError("Email is required.")
+    for line in lines:
+        assert_can_sell(line["product"], line["quantity"])
+    currency = (settings.STRIPE_CURRENCY or "usd").lower()
+    with transaction.atomic():
+        order = Order.objects.create(
+            number=next_order_number(),
+            email=email,
+            customer_name=(customer_name or "").strip(),
+            status=Order.Status.DRAFT,
+            amount=cart_total(lines),
+            currency=currency,
+            shipping_address=shipping_address or {},
+            notes=notes,
+        )
+        for line in lines:
+            product = line["product"]
+            OrderItem.objects.create(
+                order=order,
+                product=product,
+                name=product.name,
+                sku=product.sku,
+                quantity=line["quantity"],
+                unit_price=product.price,
+                print_minutes=product.print_minutes,
+            )
+    return order
+
+
+def create_checkout_session(order: Order, *, success_url: str, cancel_url: str) -> str:
+    stripe = _stripe()
+    line_items = [
+        {
+            "quantity": item.quantity,
+            "price_data": {
+                "currency": (order.currency or "usd").lower(),
+                "unit_amount": int(
+                    (item.unit_price * Decimal("100")).quantize(Decimal("1"))
+                ),
+                "product_data": {"name": item.name},
+            },
+        }
+        for item in order.items.all()
+    ]
+    if not line_items:
+        raise ShopError("Order has no items.")
+    session = stripe.checkout.Session.create(
+        mode="payment",
+        customer_email=order.email or None,
+        line_items=line_items,
+        metadata={"shop_order_id": str(order.pk), "order_number": order.number},
+        success_url=success_url,
+        cancel_url=cancel_url,
+    )
+    order.stripe_checkout_session_id = session.id
+    order.hosted_checkout_url = session.url or ""
+    order.status = Order.Status.OPEN
+    order.save(
+        update_fields=[
+            "stripe_checkout_session_id",
+            "hosted_checkout_url",
+            "status",
+            "updated_at",
+        ]
+    )
+    return session.url or ""
+
+
+def _reserve_inventory(order: Order) -> None:
+    for item in order.items.select_related("product"):
+        product = item.product
+        if product is None or not product.track_inventory:
+            continue
+        if product.fulfillment == Product.Fulfillment.STOCKED:
+            adjust_stock(product, -item.quantity)
+
+
+def _notify_pos(order: Order) -> None:
+    from django.apps import apps
+
+    if not apps.is_installed("pos_sync"):
+        return
+    from pos_sync.services import enqueue_online_sale
+
+    enqueue_online_sale(order)
+
+
+def mark_paid(order: Order, *, stripe_id: str = "") -> None:
+    if order.status == Order.Status.PAID:
+        return
+    with transaction.atomic():
+        locked = Order.objects.select_for_update().get(pk=order.pk)
+        if locked.status == Order.Status.PAID:
+            return
+        _reserve_inventory(locked)
+        locked.status = Order.Status.PAID
+        locked.paid_at = timezone.now()
+        locked.save(update_fields=["status", "paid_at", "updated_at"])
+    order.refresh_from_db()
+    try:
+        send_order_email(order)
+    except Exception:
+        logger.exception("order confirmation email failed for %s", order.number)
+    try:
+        _notify_pos(order)
+    except Exception:
+        logger.exception("POS notify failed for %s", order.number)
+
+
+def send_order_email(order: Order) -> bool:
+    to_email = (order.email or "").strip()
+    if not to_email:
+        raise ShopError("Order has no email address")
+    from django.core.mail import EmailMultiAlternatives
+
+    name = order.customer_name or "there"
+    amount = f"{order.amount} {order.currency.upper()}"
+    lines = "\n".join(
+        f"- {item.quantity}× {item.name} ({item.sku})" for item in order.items.all()
+    )
+    subject = f"Order {order.number} from {settings.SITE_NAME}"
+    text = (
+        f"Hi {name},\n\n"
+        f"We received order {order.number} for {amount}.\n\n"
+        f"{lines}\n\nThank you.\n"
+    )
+    html = (
+        f"<p>Hi {name},</p>"
+        f"<p>We received order <strong>{order.number}</strong> for "
+        f"<strong>{amount}</strong>.</p>"
+        f"<pre>{lines}</pre>"
+    )
+    mail = EmailMultiAlternatives(
+        subject=subject,
+        body=text,
+        from_email=settings.DEFAULT_FROM_EMAIL,
+        to=[to_email],
+    )
+    mail.attach_alternative(html, "text/html")
+    mail.send(fail_silently=False)
+    return True

site/shop/stats.py

@@ -0,0 +1,166 @@
+"""Sales dashboard aggregates for FEATURE_SHOP."""
+
+from __future__ import annotations
+
+from datetime import date, datetime, time, timedelta
+from decimal import Decimal
+
+from django.conf import settings
+from django.db.models import Count, F, Max, Q, Sum
+from django.utils import timezone
+
+from shop.models import Order, OrderItem
+
+SOLD_STATUSES = (Order.Status.PAID, Order.Status.FULFILLED)
+SALES_WINDOW_DAYS = 30
+
+
+def _money(value) -> Decimal:
+    return (value or Decimal("0")).quantize(Decimal("0.01"))
+
+
+def _window_start(days: int):
+    today = timezone.localdate()
+    start_date = today - timedelta(days=days - 1)
+    start_dt = timezone.make_aware(
+        datetime.combine(start_date, time.min),
+        timezone.get_current_timezone(),
+    )
+    return today, start_date, start_dt
+
+
+def _sold_orders(start_dt=None):
+    qs = Order.objects.filter(status__in=SOLD_STATUSES)
+    if start_dt is None:
+        return qs
+    return qs.filter(
+        Q(paid_at__gte=start_dt) | Q(paid_at__isnull=True, created_at__gte=start_dt)
+    )
+
+
+def _sale_date(order) -> date:
+    when = order.paid_at or order.created_at
+    return timezone.localtime(when).date()
+
+
+def _bar_pct(value: Decimal | int | float, peak: Decimal | int | float) -> int:
+    if not peak:
+        return 0
+    if not value:
+        return 0
+    return max(8, int(round((float(value) / float(peak)) * 100)))
+
+
+def sales_summary(*, days: int = SALES_WINDOW_DAYS) -> dict:
+    """Order count and revenue for the rolling sales window."""
+    _, _, start_dt = _window_start(days)
+    totals = _sold_orders(start_dt).aggregate(
+        order_count=Count("id"), revenue=Sum("amount")
+    )
+    return {
+        "order_count": int(totals["order_count"] or 0),
+        "revenue": _money(totals["revenue"]),
+    }
+
+
+def sales_dashboard(*, days: int = SALES_WINDOW_DAYS) -> dict:
+    """Paid/fulfilled order stats, daily series, and top products."""
+    _, start_date, start_dt = _window_start(days)
+    sold = _sold_orders(start_dt)
+    totals = sold.aggregate(order_count=Count("id"), revenue=Sum("amount"))
+    order_count = int(totals["order_count"] or 0)
+    revenue = _money(totals["revenue"])
+    units = int(
+        OrderItem.objects.filter(order__in=sold).aggregate(total=Sum("quantity"))[
+            "total"
+        ]
+        or 0
+    )
+    aov = _money(revenue / order_count) if order_count else Decimal("0.00")
+    currency = (settings.STRIPE_CURRENCY or "usd").lower()
+
+    by_day: dict = {
+        start_date + timedelta(days=offset): {
+            "count": 0,
+            "revenue": Decimal("0.00"),
+        }
+        for offset in range(days)
+    }
+    for order in sold.only("paid_at", "created_at", "amount"):
+        day = _sale_date(order)
+        bucket = by_day.get(day)
+        if bucket is None:
+            continue
+        bucket["count"] += 1
+        bucket["revenue"] += order.amount or Decimal("0")
+
+    peak_count = max((row["count"] for row in by_day.values()), default=0)
+    peak_revenue = max((row["revenue"] for row in by_day.values()), default=Decimal("0"))
+    daily_sales = []
+    daily_revenue = []
+    for index, (day, row) in enumerate(by_day.items()):
+        tick = index == 0 or index == days - 1 or day.weekday() == 0
+        label = f"{day.strftime('%b')} {day.day}"
+        daily_sales.append(
+            {
+                "date": day,
+                "label": label,
+                "count": row["count"],
+                "revenue": _money(row["revenue"]),
+                "pct": _bar_pct(row["count"], peak_count),
+                "tick": tick,
+                "tick_label": label if tick else "",
+            }
+        )
+        daily_revenue.append(
+            {
+                "date": day,
+                "label": label,
+                "count": row["count"],
+                "revenue": _money(row["revenue"]),
+                "pct": _bar_pct(row["revenue"], peak_revenue),
+                "tick": tick,
+                "tick_label": label if tick else "",
+            }
+        )
+
+    product_rows = list(
+        OrderItem.objects.filter(order__in=sold)
+        .values("sku")
+        .annotate(
+            units=Sum("quantity"),
+            revenue=Sum(F("unit_price") * F("quantity")),
+            product_name=Max("product__name"),
+            item_name=Max("name"),
+        )
+        .order_by("-units", "-revenue")[:8]
+    )
+    peak_units = max((int(row["units"] or 0) for row in product_rows), default=0)
+    top_products = []
+    for row in product_rows:
+        units_sold = int(row["units"] or 0)
+        top_products.append(
+            {
+                "sku": row["sku"],
+                "name": row["product_name"] or row["item_name"] or row["sku"],
+                "units": units_sold,
+                "revenue": _money(row["revenue"]),
+                "bar_pct": _bar_pct(units_sold, peak_units),
+            }
+        )
+
+    recent_orders = list(sold.order_by("-paid_at", "-created_at")[:8])
+
+    return {
+        "days": days,
+        "currency": currency,
+        "order_count": order_count,
+        "revenue": revenue,
+        "units_sold": units,
+        "aov": aov,
+        "daily_sales": daily_sales,
+        "daily_revenue": daily_revenue,
+        "top_products": top_products,
+        "recent_orders": recent_orders,
+        "has_sales": order_count > 0,
+    }

site/shop/templates/shop/cancel.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+{% block title %}Checkout cancelled{% endblock %}
+{% block content %}
+<section class="section section-lg"><div class="container">
+<h1>Checkout cancelled</h1>
+<p>Order {{ order.number }} was not paid. You can return to the <a href="{% url 'shop:cart' %}">cart</a>.</p>
+</div></section>
+{% endblock %}

site/shop/templates/shop/cart.html

@@ -0,0 +1,26 @@
+{% extends "base.html" %}
+{% block title %}Cart · {{ SITE_NAME }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <h1>Cart</h1>
+    {% for line in lines %}
+    <p>
+      <a href="{{ line.product.get_absolute_url }}">{{ line.product.name }}</a>
+      · {{ line.quantity }} × {{ line.unit_price }} = {{ line.line_total }}
+    </p>
+    <form method="post" action="{% url 'shop:cart_update' line.product.slug %}" style="margin:0 0 16px">
+      {% csrf_token %}
+      <input name="quantity" type="number" min="0" value="{{ line.quantity }}">
+      <button type="submit">Update</button>
+    </form>
+    {% empty %}
+    <p>Cart is empty.</p>
+    {% endfor %}
+    {% if lines %}
+    <p><strong>Total:</strong> {{ total }}</p>
+    <p><a class="button button-primary" href="{% url 'shop:checkout' %}">Checkout</a></p>
+    {% endif %}
+  </div>
+</section>
+{% endblock %}

site/shop/templates/shop/checkout.html

@@ -0,0 +1,21 @@
+{% extends "base.html" %}
+{% block title %}Checkout · {{ SITE_NAME }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <h1>Checkout</h1>
+    <p>Total: {{ total }}</p>
+    <form method="post">
+      {% csrf_token %}
+      <p><label>Email <input name="email" type="email" required></label></p>
+      <p><label>Name <input name="customer_name"></label></p>
+      <p><label>Address <input name="address_line1"></label></p>
+      <p><label>Address 2 <input name="address_line2"></label></p>
+      <p><label>City <input name="address_city"></label></p>
+      <p><label>State <input name="address_state"></label></p>
+      <p><label>ZIP <input name="address_zip"></label></p>
+      <button class="button button-primary" type="submit">Pay with Stripe</button>
+    </form>
+  </div>
+</section>
+{% endblock %}

site/shop/templates/shop/detail.html

@@ -0,0 +1,20 @@
+{% extends "base.html" %}
+{% block title %}{{ product.name }} · {{ SITE_NAME }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <p><a href="{% url 'shop:list' %}">← Shop</a></p>
+    <h1>{{ product.name }}</h1>
+    <p class="muted">{{ product.price }} {{ product.currency|upper }} · {{ product.sku }}</p>
+    <div>{{ product.description|linebreaks }}</div>
+    {% if available is not None %}
+    <p>{{ available }} in stock</p>
+    {% endif %}
+    <form method="post" action="{% url 'shop:cart_add' product.slug %}">
+      {% csrf_token %}
+      <label>Qty <input name="quantity" type="number" min="1" value="1"></label>
+      <button class="button button-primary" type="submit">Add to cart</button>
+    </form>
+  </div>
+</section>
+{% endblock %}

site/shop/templates/shop/list.html

@@ -0,0 +1,19 @@
+{% extends "base.html" %}
+{% block title %}Shop · {{ SITE_NAME }}{% endblock %}
+{% block content %}
+<section class="section section-lg">
+  <div class="container">
+    <h1 class="text-uppercase">Shop</h1>
+    <p><a href="{% url 'shop:cart' %}">View cart</a></p>
+    {% for product in products %}
+    <article style="margin:0 0 32px">
+      <h2><a href="{{ product.get_absolute_url }}">{{ product.name }}</a></h2>
+      <p class="muted">{{ product.price }} {{ product.currency|upper }} · {{ product.sku }}</p>
+      <p>{{ product.description|truncatewords:40 }}</p>
+    </article>
+    {% empty %}
+    <p>No products yet.</p>
+    {% endfor %}
+  </div>
+</section>
+{% endblock %}

site/shop/templates/shop/portal/order_detail.html

@@ -0,0 +1,21 @@
+{% extends "portal_base.html" %}
+{% block title %}{{ order.number }} · Portal{% endblock %}
+{% block topbar_title %}{{ order.number }}{% endblock %}
+{% block portal_content %}
+<p><strong>{{ order.email }}</strong> · {{ order.amount }} {{ order.currency|upper }} · {{ order.get_status_display }}</p>
+{% if order.customer_name %}<p>{{ order.customer_name }}</p>{% endif %}
+<table class="table">
+  <thead><tr><th>Item</th><th>SKU</th><th>Qty</th><th>Price</th></tr></thead>
+  <tbody>
+    {% for item in order.items.all %}
+    <tr>
+      <td>{{ item.name }}</td>
+      <td>{{ item.sku }}</td>
+      <td>{{ item.quantity }}</td>
+      <td>{{ item.unit_price }}</td>
+    </tr>
+    {% endfor %}
+  </tbody>
+</table>
+<p><a href="{% url 'shop_portal:order_list' %}">← All orders</a></p>
+{% endblock %}

site/shop/templates/shop/portal/orders.html

@@ -0,0 +1,20 @@
+{% extends "portal_base.html" %}
+{% block title %}Orders · Portal{% endblock %}
+{% block topbar_title %}Orders{% endblock %}
+{% block portal_content %}
+<table class="table">
+  <thead><tr><th>Number</th><th>Email</th><th>Amount</th><th>Status</th></tr></thead>
+  <tbody>
+    {% for order in orders %}
+    <tr>
+      <td><a href="{% url 'shop_portal:order_detail' order.pk %}">{{ order.number }}</a></td>
+      <td>{{ order.email }}</td>
+      <td>{{ order.amount }} {{ order.currency|upper }}</td>
+      <td>{{ order.get_status_display }}</td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="4" class="empty-state">No orders yet.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+{% endblock %}

site/shop/templates/shop/portal/product_edit.html

@@ -0,0 +1,33 @@
+{% extends "portal_base.html" %}
+{% block title %}{% if product %}Edit{% else %}New{% endif %} product · Portal{% endblock %}
+{% block topbar_title %}{% if product %}Edit product{% else %}New product{% endif %}{% endblock %}
+{% block portal_content %}
+<form method="post" class="form-grid">
+  {% csrf_token %}
+  <div class="field"><label>Name</label><input name="name" required value="{{ product.name|default:'' }}"></div>
+  <div class="field"><label>SKU</label><input name="sku" value="{{ product.sku|default:'' }}" placeholder="auto from name"></div>
+  <div class="field"><label>Slug</label><input name="slug" value="{{ product.slug|default:'' }}" placeholder="auto from name"></div>
+  <div class="field"><label>Price</label><input name="price" type="number" step="0.01" min="0" required value="{{ product.price|default:'' }}"></div>
+  <div class="field">
+    <label>Fulfillment</label>
+    <select name="fulfillment">
+      <option value="stocked" {% if product.fulfillment == 'stocked' or not product %}selected{% endif %}>On-hand stock</option>
+      <option value="made_to_order" {% if product.fulfillment == 'made_to_order' %}selected{% endif %}>Made to order</option>
+    </select>
+  </div>
+  <div class="field"><label>Stock qty</label><input name="stock_qty" type="number" value="{{ product.stock_qty|default:0 }}"></div>
+  <div class="field"><label>Print minutes</label><input name="print_minutes" type="number" min="0" value="{{ product.print_minutes|default:0 }}"></div>
+  <div class="field"><label>Filament grams</label><input name="filament_grams" type="number" min="0" value="{{ product.filament_grams|default:0 }}"></div>
+  <div class="field"><label>Description</label><textarea name="description" style="min-height:120px">{{ product.description|default:'' }}</textarea></div>
+  <label><input type="checkbox" name="is_published" {% if product.is_published %}checked{% endif %}> Published</label>
+  <label><input type="checkbox" name="track_inventory" {% if product.track_inventory or not product %}checked{% endif %}> Track inventory</label>
+  <button class="btn btn-primary" type="submit">Save</button>
+</form>
+{% if product %}
+<form method="post" action="{% url 'shop_portal:product_stock' product.pk %}" class="form-grid" style="margin-top:24px">
+  {% csrf_token %}
+  <div class="field"><label>Adjust stock (+/−)</label><input name="delta" type="number" required value="1"></div>
+  <button class="btn btn-ghost" type="submit">Apply adjustment</button>
+</form>
+{% endif %}
+{% endblock %}

site/shop/templates/shop/portal/products.html

@@ -0,0 +1,22 @@
+{% extends "portal_base.html" %}
+{% block title %}Products · Portal{% endblock %}
+{% block topbar_title %}Products{% endblock %}
+{% block portal_content %}
+<p><a class="btn btn-primary" href="{% url 'shop_portal:product_new' %}">New product</a></p>
+<table class="table">
+  <thead><tr><th>Name</th><th>SKU</th><th>Price</th><th>Stock</th><th>Status</th></tr></thead>
+  <tbody>
+    {% for product in products %}
+    <tr>
+      <td><a href="{% url 'shop_portal:product_edit' product.pk %}">{{ product.name }}</a></td>
+      <td>{{ product.sku }}</td>
+      <td>{{ product.price }} {{ product.currency|upper }}</td>
+      <td>{{ product.stock_qty }}</td>
+      <td>{% if product.is_published %}Published{% else %}Draft{% endif %}</td>
+    </tr>
+    {% empty %}
+    <tr><td colspan="5" class="empty-state">No products yet.</td></tr>
+    {% endfor %}
+  </tbody>
+</table>
+{% endblock %}

site/shop/templates/shop/portal/sales.html

@@ -0,0 +1,147 @@
+{% extends "portal_base.html" %}
+{% block title %}Sales · Portal{% endblock %}
+{% block topbar_title %}Sales{% endblock %}
+{% block portal_content %}
+<div class="stat-row">
+  <div class="stat-card">
+    <div class="label">Orders ({{ days }} days)</div>
+    <div class="value">{{ order_count }}</div>
+  </div>
+  <div class="stat-card">
+    <div class="label">Revenue ({{ days }} days)</div>
+    <div class="value">{{ revenue }} {{ currency|upper }}</div>
+  </div>
+  <div class="stat-card">
+    <div class="label">Units sold</div>
+    <div class="value">{{ units_sold }}</div>
+  </div>
+  <div class="stat-card">
+    <div class="label">Average order</div>
+    <div class="value">{{ aov }} {{ currency|upper }}</div>
+  </div>
+</div>
+
+<div class="panel">
+  <div class="panel-h">
+    <h2>Orders per day</h2>
+    <span class="muted">Last {{ days }} days</span>
+  </div>
+  <div class="panel-b">
+    <div class="chart-placeholder chart-daily" role="img"
+         aria-label="Paid orders per day for the last {{ days }} days">
+      {% for bar in daily_sales %}
+      <div class="chart-bar-col">
+        <div class="bar{% if not bar.count %} is-zero{% endif %}"
+             style="height:{{ bar.pct }}%"
+             title="{{ bar.label }}: {{ bar.count }} sale{{ bar.count|pluralize }} · {{ bar.revenue }} {{ currency|upper }}"></div>
+        <div class="chart-bar-meta">
+          <span class="chart-bar-label">{% if bar.tick %}{{ bar.tick_label }}{% else %}&nbsp;{% endif %}</span>
+        </div>
+      </div>
+      {% endfor %}
+    </div>
+    {% if not has_sales %}
+    <p class="empty-state" style="padding-top:12px">No paid orders in this window.</p>
+    {% endif %}
+  </div>
+</div>
+
+<div class="panel">
+  <div class="panel-h">
+    <h2>Revenue per day</h2>
+    <span class="muted">Last {{ days }} days</span>
+  </div>
+  <div class="panel-b">
+    <div class="chart-placeholder chart-daily chart-revenue" role="img"
+         aria-label="Revenue per day for the last {{ days }} days">
+      {% for bar in daily_revenue %}
+      <div class="chart-bar-col">
+        <div class="bar{% if not bar.revenue %} is-zero{% endif %}"
+             style="height:{{ bar.pct }}%"
+             title="{{ bar.label }}: {{ bar.revenue }} {{ currency|upper }}"></div>
+        <div class="chart-bar-meta">
+          <span class="chart-bar-label">{% if bar.tick %}{{ bar.tick_label }}{% else %}&nbsp;{% endif %}</span>
+        </div>
+      </div>
+      {% endfor %}
+    </div>
+  </div>
+</div>
+
+<div class="split">
+  <div class="panel">
+    <div class="panel-h">
+      <h2>Top products</h2>
+      <span class="muted">By units sold</span>
+    </div>
+    <div class="panel-b">
+      {% if top_products %}
+      <div class="hbar-chart" role="img" aria-label="Top products by units sold">
+        {% for row in top_products %}
+        <div class="hbar-row" title="{{ row.name }} · {{ row.units }} sold · {{ row.revenue }} {{ currency|upper }}">
+          <div class="hbar-label">{{ row.name }}</div>
+          <div class="hbar-track">
+            <div class="hbar-fill" style="width:{{ row.bar_pct }}%"></div>
+          </div>
+          <div class="hbar-value">{{ row.units }}</div>
+        </div>
+        {% endfor %}
+      </div>
+      {% else %}
+      <p class="empty-state" style="margin:0;padding:0">No product sales yet.</p>
+      {% endif %}
+    </div>
+  </div>
+  <div class="panel">
+    <div class="panel-h">
+      <h2>Product mix</h2>
+      <a class="btn btn-sm btn-ghost" href="{% url 'shop_portal:product_list' %}">Products</a>
+    </div>
+    <div class="panel-b" style="padding:0">
+      <table class="table">
+        <thead>
+          <tr><th>Product</th><th>SKU</th><th>Units</th><th>Revenue</th></tr>
+        </thead>
+        <tbody>
+          {% for row in top_products %}
+          <tr>
+            <td>{{ row.name }}</td>
+            <td>{{ row.sku }}</td>
+            <td>{{ row.units }}</td>
+            <td>{{ row.revenue }} {{ currency|upper }}</td>
+          </tr>
+          {% empty %}
+          <tr><td colspan="4" class="empty-state">No paid line items in the last {{ days }} days.</td></tr>
+          {% endfor %}
+        </tbody>
+      </table>
+    </div>
+  </div>
+</div>
+
+<div class="panel">
+  <div class="panel-h">
+    <h2>Recent sales</h2>
+    <a class="btn btn-sm btn-ghost" href="{% url 'shop_portal:order_list' %}">All orders</a>
+  </div>
+  <div class="panel-b" style="padding:0">
+    <table class="table">
+      <thead>
+        <tr><th>Number</th><th>Customer</th><th>Amount</th><th>Status</th></tr>
+      </thead>
+      <tbody>
+        {% for order in recent_orders %}
+        <tr>
+          <td><a href="{% url 'shop_portal:order_detail' order.pk %}">{{ order.number }}</a></td>
+          <td>{{ order.customer_name|default:order.email }}</td>
+          <td>{{ order.amount }} {{ order.currency|upper }}</td>
+          <td>{{ order.get_status_display }}</td>
+        </tr>
+        {% empty %}
+        <tr><td colspan="4" class="empty-state">No paid orders yet.</td></tr>
+        {% endfor %}
+      </tbody>
+    </table>
+  </div>
+</div>
+{% endblock %}

site/shop/templates/shop/success.html

@@ -0,0 +1,9 @@
+{% extends "base.html" %}
+{% block title %}Order {{ order.number }}{% endblock %}
+{% block content %}
+<section class="section section-lg"><div class="container">
+<h1>Thank you</h1>
+<p>Order {{ order.number }} is {{ order.get_status_display|lower }}.</p>
+<p>A confirmation will go to {{ order.email }}.</p>
+</div></section>
+{% endblock %}

site/shop/tests.py

@@ -0,0 +1,254 @@
+from datetime import timedelta
+from decimal import Decimal
+
+from django.contrib.auth import get_user_model
+from django.core import mail
+from django.test import Client, TestCase, override_settings
+from django.urls import reverse
+from django.utils import timezone
+
+from shop.models import Order, OrderItem, Product
+from shop.services import (
+    ShopError,
+    add_to_cart,
+    adjust_stock,
+    available_qty,
+    create_order_from_cart,
+    mark_paid,
+    next_order_number,
+)
+from shop.stats import sales_dashboard
+
+
+def _product(**kwargs):
+    defaults = dict(
+        name="Dragon figurine",
+        sku="TOY-001",
+        price=Decimal("18.00"),
+        stock_qty=5,
+        is_published=True,
+        fulfillment=Product.Fulfillment.STOCKED,
+    )
+    defaults.update(kwargs)
+    return Product.objects.create(**defaults)
+
+
+class ShopPublicTests(TestCase):
+    def test_list_hides_unpublished(self):
+        _product(name="Live", sku="LIVE-1")
+        _product(name="Draft", sku="DRAFT-1", is_published=False)
+        response = Client().get(reverse("shop:list"))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "Live")
+        self.assertNotContains(response, "Draft")
+
+    def test_add_to_cart_then_checkout_form(self):
+        product = _product()
+        client = Client()
+        response = client.post(
+            reverse("shop:cart_add", kwargs={"slug": product.slug}),
+            {"quantity": "2"},
+        )
+        self.assertEqual(response.status_code, 302)
+        cart = client.get(reverse("shop:cart"))
+        self.assertContains(cart, "Dragon figurine")
+        self.assertContains(cart, "36.00")
+        checkout = client.get(reverse("shop:checkout"))
+        self.assertEqual(checkout.status_code, 200)
+        self.assertContains(checkout, "Pay with Stripe")
+
+
+class ShopInventoryTests(TestCase):
+    def test_stocked_availability_and_adjust(self):
+        product = _product(stock_qty=4)
+        self.assertEqual(available_qty(product), 4)
+        adjust_stock(product, -2)
+        product.refresh_from_db()
+        self.assertEqual(product.stock_qty, 2)
+        with self.assertRaises(ShopError):
+            adjust_stock(product, -5)
+
+    def test_mark_paid_decrements_stock_and_emails(self):
+        product = _product(stock_qty=3)
+        session = self.client.session
+        add_to_cart(session, product, 2)
+        session.save()
+        order = create_order_from_cart(
+            self.client.session, email="buyer@example.com", customer_name="Pat"
+        )
+        mark_paid(order)
+        product.refresh_from_db()
+        self.assertEqual(product.stock_qty, 1)
+        order.refresh_from_db()
+        self.assertEqual(order.status, Order.Status.PAID)
+        self.assertEqual(len(mail.outbox), 1)
+        self.assertIn(order.number, mail.outbox[0].subject)
+
+    def test_insufficient_stock_blocks_order(self):
+        product = _product(stock_qty=1)
+        session = self.client.session
+        add_to_cart(session, product, 3)
+        session.save()
+        with self.assertRaises(ShopError):
+            create_order_from_cart(self.client.session, email="buyer@example.com")
+
+    @override_settings(SHOP_PRINT_QUEUE_LIMIT_MINUTES=60)
+    def test_made_to_order_queue_limit(self):
+        product = _product(
+            sku="MTO-1",
+            fulfillment=Product.Fulfillment.MADE_TO_ORDER,
+            print_minutes=30,
+            stock_qty=0,
+        )
+        self.assertEqual(available_qty(product), 2)
+
+    def test_next_number_increments(self):
+        n1 = next_order_number()
+        Order.objects.create(
+            number=n1,
+            email="a@example.com",
+            amount=Decimal("1.00"),
+        )
+        n2 = next_order_number()
+        self.assertNotEqual(n1, n2)
+
+
+class ShopPortalTests(TestCase):
+    def setUp(self):
+        User = get_user_model()
+        self.user = User.objects.create_user("merchant", password="test-pass-123")
+        self.client = Client()
+        self.client.login(username="merchant", password="test-pass-123")
+
+    def test_list_requires_login(self):
+        anon = Client()
+        self.assertEqual(anon.get(reverse("shop_portal:product_list")).status_code, 302)
+
+    def test_create_and_adjust_stock(self):
+        response = self.client.post(
+            reverse("shop_portal:product_new"),
+            {
+                "name": "Booster box",
+                "sku": "TCG-BOX",
+                "price": "89.99",
+                "stock_qty": "10",
+                "fulfillment": "stocked",
+                "is_published": "on",
+                "track_inventory": "on",
+            },
+        )
+        self.assertEqual(response.status_code, 302)
+        product = Product.objects.get(sku="TCG-BOX")
+        self.assertTrue(product.is_published)
+        self.assertEqual(product.slug, "booster-box")
+        adjust = self.client.post(
+            reverse("shop_portal:product_stock", kwargs={"pk": product.pk}),
+            {"delta": "-3"},
+        )
+        self.assertEqual(adjust.status_code, 302)
+        product.refresh_from_db()
+        self.assertEqual(product.stock_qty, 7)
+
+
+def _sold_order(product, *, qty=1, paid_at=None, status=None, number=None):
+    n = Order.objects.count() + 1
+    order = Order.objects.create(
+        number=number or f"ORD-TEST-{n:04d}",
+        email=f"buyer{n}@example.com",
+        customer_name="Pat",
+        status=status or Order.Status.PAID,
+        amount=product.price * qty,
+        currency="usd",
+        paid_at=paid_at if paid_at is not None else timezone.now(),
+    )
+    OrderItem.objects.create(
+        order=order,
+        product=product,
+        name=product.name,
+        sku=product.sku,
+        quantity=qty,
+        unit_price=product.price,
+    )
+    return order
+
+
+class ShopSalesDashboardTests(TestCase):
+    def setUp(self):
+        User = get_user_model()
+        self.user = User.objects.create_user("merchant", password="test-pass-123")
+        self.client = Client()
+        self.client.login(username="merchant", password="test-pass-123")
+        self.dragon = _product(name="Dragon", sku="DRAGON", price=Decimal("18.00"))
+        self.fox = _product(name="Fox", sku="FOX", price=Decimal("12.00"))
+
+    def test_sales_requires_login(self):
+        anon = Client()
+        self.assertEqual(anon.get(reverse("shop_portal:sales")).status_code, 302)
+
+    def test_empty_dashboard(self):
+        data = sales_dashboard()
+        self.assertEqual(data["order_count"], 0)
+        self.assertEqual(data["revenue"], Decimal("0.00"))
+        self.assertEqual(len(data["daily_sales"]), 30)
+        self.assertFalse(data["has_sales"])
+        response = self.client.get(reverse("shop_portal:sales"))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "No paid orders in this window")
+        self.assertContains(response, "Sales")
+        self.assertContains(response, "Orders per day")
+        self.assertContains(response, "Top products")
+
+    def test_counts_paid_and_fulfilled_in_window(self):
+        now = timezone.now()
+        _sold_order(self.dragon, qty=2, paid_at=now)
+        _sold_order(self.fox, qty=5, paid_at=now - timedelta(days=2))
+        _sold_order(
+            self.dragon,
+            qty=1,
+            paid_at=now - timedelta(days=1),
+            status=Order.Status.FULFILLED,
+        )
+        _sold_order(
+            self.fox,
+            qty=9,
+            paid_at=now - timedelta(days=40),
+        )
+        open_order = _sold_order(self.dragon, qty=3, paid_at=None, status=Order.Status.OPEN)
+        open_order.paid_at = None
+        open_order.save(update_fields=["paid_at"])
+        cancelled = _sold_order(
+            self.fox, qty=4, paid_at=now, status=Order.Status.CANCELLED
+        )
+        self.assertEqual(cancelled.status, Order.Status.CANCELLED)
+
+        data = sales_dashboard()
+        self.assertEqual(data["order_count"], 3)
+        self.assertEqual(data["units_sold"], 8)
+        self.assertEqual(data["revenue"], Decimal("114.00"))
+        self.assertEqual(data["aov"], Decimal("38.00"))
+        self.assertEqual([row["sku"] for row in data["top_products"]], ["FOX", "DRAGON"])
+        self.assertEqual(data["top_products"][0]["units"], 5)
+        self.assertEqual(data["top_products"][1]["units"], 3)
+        today_bar = data["daily_sales"][-1]
+        self.assertEqual(today_bar["count"], 1)
+
+        response = self.client.get(reverse("shop_portal:sales"))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "Dragon")
+        self.assertContains(response, "Fox")
+        self.assertContains(response, "114.00")
+        self.assertContains(response, "Orders per day")
+        self.assertContains(response, "Revenue per day")
+
+    def test_portal_nav_and_home_stats(self):
+        _sold_order(self.dragon, qty=1)
+        home = self.client.get(reverse("dashboard:home"))
+        self.assertEqual(home.status_code, 200)
+        self.assertEqual(home.context["shop_sales_30d"], 1)
+        self.assertEqual(home.context["shop_revenue_30d"], Decimal("18.00"))
+        self.assertContains(home, reverse("shop_portal:sales"))
+        self.assertContains(home, "Sales (30 days)")
+        products = self.client.get(reverse("shop_portal:product_list"))
+        self.assertContains(products, "Sales")
+        sales = self.client.get(reverse("shop_portal:sales"))
+        self.assertContains(sales, 'class="active"')

site/shop/views.py

@@ -0,0 +1,274 @@
+import logging
+from decimal import Decimal, InvalidOperation
+
+from django.conf import settings
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.http import HttpResponse, HttpResponseBadRequest
+from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse
+from django.utils.text import slugify
+from django.views.decorators.csrf import csrf_exempt
+from django.views.decorators.http import require_http_methods, require_POST
+
+from contacts.models import Contact
+from shop.models import Order, Product
+from shop.services import (
+    ShopError,
+    add_to_cart,
+    adjust_stock,
+    available_qty,
+    cart_lines,
+    cart_total,
+    create_checkout_session,
+    create_order_from_cart,
+    mark_paid,
+    save_cart,
+    set_cart_qty,
+)
+from shop.stats import sales_dashboard
+
+logger = logging.getLogger(__name__)
+
+
+def _site_base(request) -> str:
+    base = (settings.PUBLIC_SITE_URL or "").rstrip("/")
+    if base:
+        return base
+    return request.build_absolute_uri("/").rstrip("/")
+
+
+def product_list(request):
+    products = Product.objects.filter(is_published=True)
+    return render(request, "shop/list.html", {"products": products})
+
+
+def product_detail(request, slug):
+    product = get_object_or_404(Product, slug=slug, is_published=True)
+    return render(
+        request,
+        "shop/detail.html",
+        {"product": product, "available": available_qty(product)},
+    )
+
+
+def cart_view(request):
+    lines = cart_lines(request.session)
+    return render(
+        request,
+        "shop/cart.html",
+        {"lines": lines, "total": cart_total(lines)},
+    )
+
+
+@require_POST
+def cart_add(request, slug):
+    product = get_object_or_404(Product, slug=slug, is_published=True)
+    try:
+        qty = int(request.POST.get("quantity") or "1")
+    except ValueError:
+        qty = 1
+    try:
+        add_to_cart(request.session, product, qty)
+    except ShopError as exc:
+        messages.error(request, str(exc))
+        return redirect("shop:detail", slug=product.slug)
+    messages.success(request, f"Added {product.name} to cart.")
+    return redirect("shop:cart")
+
+
+@require_POST
+def cart_update(request, slug):
+    product = get_object_or_404(Product, slug=slug)
+    try:
+        qty = int(request.POST.get("quantity") or "0")
+    except ValueError:
+        qty = 0
+    set_cart_qty(request.session, product, qty)
+    return redirect("shop:cart")
+
+
+@require_http_methods(["GET", "POST"])
+def checkout(request):
+    lines = cart_lines(request.session)
+    if not lines:
+        messages.error(request, "Cart is empty.")
+        return redirect("shop:cart")
+    if request.method == "POST":
+        email = (request.POST.get("email") or "").strip()
+        name = (request.POST.get("customer_name") or "").strip()
+        address = Contact.make_postal_address(
+            line1=request.POST.get("address_line1") or "",
+            line2=request.POST.get("address_line2") or "",
+            city=request.POST.get("address_city") or "",
+            state=request.POST.get("address_state") or "",
+            zip_code=request.POST.get("address_zip") or "",
+        )
+        try:
+            order = create_order_from_cart(
+                request.session,
+                email=email,
+                customer_name=name,
+                shipping_address=address,
+            )
+            base = _site_base(request)
+            success = base + reverse("shop:checkout_success", kwargs={"pk": order.pk})
+            cancel = base + reverse("shop:checkout_cancel", kwargs={"pk": order.pk})
+            url = create_checkout_session(
+                order,
+                success_url=success + "?session_id={CHECKOUT_SESSION_ID}",
+                cancel_url=cancel,
+            )
+        except ShopError as exc:
+            messages.error(request, str(exc))
+        except Exception as exc:  # noqa: BLE001
+            logger.exception("shop checkout failed")
+            messages.error(request, f"Could not start checkout: {exc}")
+        else:
+            save_cart(request.session, {})
+            return redirect(url)
+    return render(
+        request,
+        "shop/checkout.html",
+        {"lines": lines, "total": cart_total(lines)},
+    )
+
+
+def checkout_success(request, pk):
+    order = get_object_or_404(Order, pk=pk)
+    return render(request, "shop/success.html", {"order": order})
+
+
+def checkout_cancel(request, pk):
+    order = get_object_or_404(Order, pk=pk)
+    return render(request, "shop/cancel.html", {"order": order})
+
+
+@login_required
+def portal_product_list(request):
+    products = Product.objects.all()
+    return render(request, "shop/portal/products.html", {"products": products})
+
+
+@login_required
+@require_http_methods(["GET", "POST"])
+def portal_product_edit(request, pk=None):
+    product = get_object_or_404(Product, pk=pk) if pk else None
+    if request.method == "POST":
+        name = (request.POST.get("name") or "").strip()
+        sku = (request.POST.get("sku") or "").strip()
+        description = (request.POST.get("description") or "").strip()
+        slug = (request.POST.get("slug") or "").strip()
+        fulfillment = request.POST.get("fulfillment") or Product.Fulfillment.STOCKED
+        errors = []
+        if not name:
+            errors.append("Name is required.")
+        try:
+            price = Decimal(request.POST.get("price") or "")
+            if price < 0:
+                raise InvalidOperation
+        except Exception:
+            price = None
+            errors.append("Enter a valid price.")
+        try:
+            stock_qty = int(request.POST.get("stock_qty") or "0")
+        except ValueError:
+            stock_qty = 0
+            errors.append("Stock must be a number.")
+        try:
+            print_minutes = int(request.POST.get("print_minutes") or "0")
+            filament_grams = int(request.POST.get("filament_grams") or "0")
+        except ValueError:
+            print_minutes = 0
+            filament_grams = 0
+        if errors:
+            for err in errors:
+                messages.error(request, err)
+        else:
+            if product is None:
+                product = Product()
+            product.name = name
+            product.sku = sku
+            product.description = description
+            product.slug = slugify(slug)[:220] if slug else ""
+            product.price = price
+            product.currency = (settings.STRIPE_CURRENCY or "usd").lower()
+            product.fulfillment = fulfillment
+            product.stock_qty = stock_qty
+            product.print_minutes = max(print_minutes, 0)
+            product.filament_grams = max(filament_grams, 0)
+            product.is_published = request.POST.get("is_published") == "on"
+            product.track_inventory = request.POST.get("track_inventory") == "on"
+            product.save()
+            messages.success(request, f"Saved {product.name}.")
+            return redirect("shop_portal:product_list")
+    return render(request, "shop/portal/product_edit.html", {"product": product})
+
+
+@login_required
+@require_POST
+def portal_stock_adjust(request, pk):
+    product = get_object_or_404(Product, pk=pk)
+    try:
+        delta = int(request.POST.get("delta") or "0")
+    except ValueError:
+        messages.error(request, "Enter a whole-number adjustment.")
+        return redirect("shop_portal:product_edit", pk=product.pk)
+    try:
+        adjust_stock(product, delta)
+    except ShopError as exc:
+        messages.error(request, str(exc))
+    else:
+        messages.success(request, f"{product.sku} stock is now {product.stock_qty}.")
+    return redirect("shop_portal:product_edit", pk=product.pk)
+
+
+@login_required
+def portal_sales(request):
+    return render(request, "shop/portal/sales.html", sales_dashboard())
+
+
+@login_required
+def portal_order_list(request):
+    orders = Order.objects.all()[:200]
+    return render(request, "shop/portal/orders.html", {"orders": orders})
+
+
+@login_required
+def portal_order_detail(request, pk):
+    order = get_object_or_404(Order.objects.prefetch_related("items"), pk=pk)
+    return render(request, "shop/portal/order_detail.html", {"order": order})
+
+
+@csrf_exempt
+@require_http_methods(["POST"])
+def stripe_webhook(request):
+    secret = (settings.STRIPE_WEBHOOK_SECRET or "").strip()
+    if not secret:
+        logger.error("STRIPE_WEBHOOK_SECRET unset")
+        return HttpResponseBadRequest("webhook not configured")
+    try:
+        import stripe
+    except ImportError:
+        return HttpResponseBadRequest("stripe not installed")
+    sig = request.headers.get("Stripe-Signature", "")
+    try:
+        event = stripe.Webhook.construct_event(request.body, sig, secret)
+    except Exception:
+        logger.exception("shop stripe webhook signature failed")
+        return HttpResponseBadRequest("invalid signature")
+
+    obj = event.get("data", {}).get("object", {}) or {}
+    if event.get("type") != "checkout.session.completed":
+        return HttpResponse("ok")
+    order_id = (obj.get("metadata") or {}).get("shop_order_id") or ""
+    order = None
+    if order_id:
+        order = Order.objects.filter(pk=order_id).first()
+    if order is None:
+        session_id = obj.get("id") or ""
+        order = Order.objects.filter(stripe_checkout_session_id=session_id).first()
+    if order and order.status != Order.Status.PAID:
+        mark_paid(order, stripe_id=obj.get("id") or "")
+        logger.info("shop order %s marked paid", order.number)
+    return HttpResponse("ok")