Add ticket-to-cart integration

Reserved tickets now flow through the cart and checkout pipeline:
- TicketDTO gains price, entry_id, order_id, calendar_container_id
- CartSummaryDTO gains ticket_count, ticket_total
- 6 new CalendarService methods for ticket lifecycle
- cart_summary includes tickets; login adoption migrates tickets
- New _ticket_items.html template for checkout return page

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

browser/templates/_types/cart/checkout_return.html

@@ -47,7 +47,7 @@
     {% endif %}
     {% include '_types/order/_items.html' %}
     {% include '_types/order/_calendar_items.html' %}
-    
+    {% include '_types/order/_ticket_items.html' %}
 
     {% if order.status == 'failed' and order %}
       <div class="rounded-2xl border border-rose-200 bg-rose-50/80 p-4 sm:p-6 text-sm text-rose-900 space-y-2">

browser/templates/_types/order/_ticket_items.html

@@ -0,0 +1,49 @@
+{# --- Tickets in this order --- #}
+    {% if order and order_tickets %}
+      <section class="mt-6 space-y-3">
+        <h2 class="text-base sm:text-lg font-semibold">
+          Event tickets in this order
+        </h2>
+
+        <ul class="divide-y divide-stone-200 rounded-2xl border border-stone-200 bg-white/80">
+          {% for tk in order_tickets %}
+            <li class="px-4 py-3 flex items-start justify-between text-sm">
+              <div>
+                <div class="font-medium flex items-center gap-2">
+                  {{ tk.entry_name }}
+                  {# Small status pill #}
+                  <span class="inline-flex items-center rounded-full px-2 py-0.5 text-[11px] font-medium
+                      {% if tk.state == 'confirmed' %}
+                        bg-emerald-100 text-emerald-800
+                      {% elif tk.state == 'reserved' %}
+                        bg-amber-100 text-amber-800
+                      {% elif tk.state == 'checked_in' %}
+                        bg-blue-100 text-blue-800
+                      {% else %}
+                        bg-stone-100 text-stone-700
+                      {% endif %}
+                    ">
+                    {{ tk.state|replace('_', ' ')|capitalize }}
+                  </span>
+                </div>
+                {% if tk.ticket_type_name %}
+                  <div class="text-xs text-stone-500">{{ tk.ticket_type_name }}</div>
+                {% endif %}
+                <div class="text-xs text-stone-500">
+                  {{ tk.entry_start_at.strftime('%-d %b %Y, %H:%M') }}
+                  {% if tk.entry_end_at %}
+                    – {{ tk.entry_end_at.strftime('%-d %b %Y, %H:%M') }}
+                  {% endif %}
+                </div>
+                <div class="text-xs text-stone-400 font-mono mt-0.5">
+                  {{ tk.code }}
+                </div>
+              </div>
+              <div class="ml-4 font-medium">
+                £{{ "%.2f"|format(tk.price or 0) }}
+              </div>
+            </li>
+          {% endfor %}
+        </ul>
+      </section>
+    {% endif %}

contracts/dtos.py

@@ -55,6 +55,10 @@ class TicketDTO:
     calendar_name: str | None = None
     created_at: datetime | None = None
     checked_in_at: datetime | None = None
+    entry_id: int | None = None
+    price: Decimal | None = None
+    order_id: int | None = None
+    calendar_container_id: int | None = None
 
 
 @dataclass(frozen=True, slots=True)
@@ -127,3 +131,5 @@ class CartSummaryDTO:
     calendar_count: int = 0
     calendar_total: Decimal = Decimal("0")
     items: list[CartItemDTO] = field(default_factory=list)
+    ticket_count: int = 0
+    ticket_total: Decimal = Decimal("0")

contracts/protocols.py

@@ -82,6 +82,31 @@ class CalendarService(Protocol):
         self, session: AsyncSession, post_ids: list[int],
     ) -> dict[int, list[CalendarEntryDTO]]: ...
 
+    async def pending_tickets(
+        self, session: AsyncSession, *, user_id: int | None, session_id: str | None,
+    ) -> list[TicketDTO]: ...
+
+    async def tickets_for_page(
+        self, session: AsyncSession, page_id: int, *, user_id: int | None, session_id: str | None,
+    ) -> list[TicketDTO]: ...
+
+    async def claim_tickets_for_order(
+        self, session: AsyncSession, order_id: int, user_id: int | None,
+        session_id: str | None, page_post_id: int | None,
+    ) -> None: ...
+
+    async def confirm_tickets_for_order(
+        self, session: AsyncSession, order_id: int,
+    ) -> None: ...
+
+    async def get_tickets_for_order(
+        self, session: AsyncSession, order_id: int,
+    ) -> list[TicketDTO]: ...
+
+    async def adopt_tickets_for_user(
+        self, session: AsyncSession, user_id: int, session_id: str,
+    ) -> None: ...
+
 
 @runtime_checkable
 class MarketService(Protocol):

events/handlers/login_handlers.py

@@ -16,9 +16,10 @@ async def on_user_logged_in(event: DomainEvent, session: AsyncSession) -> None:
     if services.has("cart"):
         await services.cart.adopt_cart_for_user(session, user_id, session_id)
 
-    # Adopt calendar entries (if calendar service is registered)
+    # Adopt calendar entries and tickets (if calendar service is registered)
     if services.has("calendar"):
         await services.calendar.adopt_entries_for_user(session, user_id, session_id)
+        await services.calendar.adopt_tickets_for_user(session, user_id, session_id)
 
 
 register_handler("user.logged_in", on_user_logged_in)

services/calendar_impl.py

@@ -5,6 +5,8 @@ calendar-domain tables on behalf of other domains.
 """
 from __future__ import annotations
 
+from decimal import Decimal
+
 from sqlalchemy import select, update, func
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import selectinload
@@ -51,6 +53,12 @@ def _ticket_to_dto(ticket: Ticket) -> TicketDTO:
     entry = getattr(ticket, "entry", None)
     tt = getattr(ticket, "ticket_type", None)
     cal = getattr(entry, "calendar", None) if entry else None
+    # Price: ticket type cost if available, else entry ticket_price
+    price = None
+    if tt and tt.cost is not None:
+        price = tt.cost
+    elif entry and entry.ticket_price is not None:
+        price = entry.ticket_price
     return TicketDTO(
         id=ticket.id,
         code=ticket.code,
@@ -62,6 +70,10 @@ def _ticket_to_dto(ticket: Ticket) -> TicketDTO:
         calendar_name=cal.name if cal else None,
         created_at=ticket.created_at,
         checked_in_at=ticket.checked_in_at,
+        entry_id=entry.id if entry else None,
+        price=price,
+        order_id=ticket.order_id,
+        calendar_container_id=cal.container_id if cal else None,
     )
 
 
@@ -356,3 +368,128 @@ class SqlCalendarService:
             .where(*filters)
             .values(state="provisional")
         )
+
+    # -- ticket methods -------------------------------------------------------
+
+    def _ticket_query_options(self):
+        return [
+            selectinload(Ticket.entry).selectinload(CalendarEntry.calendar),
+            selectinload(Ticket.ticket_type),
+        ]
+
+    async def pending_tickets(
+        self, session: AsyncSession, *, user_id: int | None, session_id: str | None,
+    ) -> list[TicketDTO]:
+        """Reserved tickets for the given identity (cart line items)."""
+        filters = [Ticket.state == "reserved"]
+        if user_id is not None:
+            filters.append(Ticket.user_id == user_id)
+        elif session_id is not None:
+            filters.append(Ticket.session_id == session_id)
+        else:
+            return []
+
+        result = await session.execute(
+            select(Ticket)
+            .where(*filters)
+            .order_by(Ticket.created_at.asc())
+            .options(*self._ticket_query_options())
+        )
+        return [_ticket_to_dto(t) for t in result.scalars().all()]
+
+    async def tickets_for_page(
+        self, session: AsyncSession, page_id: int, *,
+        user_id: int | None, session_id: str | None,
+    ) -> list[TicketDTO]:
+        """Reserved tickets scoped to a page (via entry → calendar → container_id)."""
+        cal_ids = select(Calendar.id).where(
+            Calendar.container_type == "page",
+            Calendar.container_id == page_id,
+            Calendar.deleted_at.is_(None),
+        ).scalar_subquery()
+
+        entry_ids = select(CalendarEntry.id).where(
+            CalendarEntry.calendar_id.in_(cal_ids),
+            CalendarEntry.deleted_at.is_(None),
+        ).scalar_subquery()
+
+        filters = [
+            Ticket.state == "reserved",
+            Ticket.entry_id.in_(entry_ids),
+        ]
+        if user_id is not None:
+            filters.append(Ticket.user_id == user_id)
+        elif session_id is not None:
+            filters.append(Ticket.session_id == session_id)
+        else:
+            return []
+
+        result = await session.execute(
+            select(Ticket)
+            .where(*filters)
+            .order_by(Ticket.created_at.asc())
+            .options(*self._ticket_query_options())
+        )
+        return [_ticket_to_dto(t) for t in result.scalars().all()]
+
+    async def claim_tickets_for_order(
+        self, session: AsyncSession, order_id: int, user_id: int | None,
+        session_id: str | None, page_post_id: int | None,
+    ) -> None:
+        """Set order_id on reserved tickets at checkout."""
+        filters = [Ticket.state == "reserved"]
+        if user_id is not None:
+            filters.append(Ticket.user_id == user_id)
+        elif session_id is not None:
+            filters.append(Ticket.session_id == session_id)
+
+        if page_post_id is not None:
+            cal_ids = select(Calendar.id).where(
+                Calendar.container_type == "page",
+                Calendar.container_id == page_post_id,
+                Calendar.deleted_at.is_(None),
+            ).scalar_subquery()
+            entry_ids = select(CalendarEntry.id).where(
+                CalendarEntry.calendar_id.in_(cal_ids),
+                CalendarEntry.deleted_at.is_(None),
+            ).scalar_subquery()
+            filters.append(Ticket.entry_id.in_(entry_ids))
+
+        await session.execute(
+            update(Ticket).where(*filters).values(order_id=order_id)
+        )
+
+    async def confirm_tickets_for_order(
+        self, session: AsyncSession, order_id: int,
+    ) -> None:
+        """Reserved → confirmed on payment."""
+        await session.execute(
+            update(Ticket)
+            .where(Ticket.order_id == order_id, Ticket.state == "reserved")
+            .values(state="confirmed")
+        )
+
+    async def get_tickets_for_order(
+        self, session: AsyncSession, order_id: int,
+    ) -> list[TicketDTO]:
+        """Tickets for a given order (checkout return display)."""
+        result = await session.execute(
+            select(Ticket)
+            .where(Ticket.order_id == order_id)
+            .order_by(Ticket.created_at.asc())
+            .options(*self._ticket_query_options())
+        )
+        return [_ticket_to_dto(t) for t in result.scalars().all()]
+
+    async def adopt_tickets_for_user(
+        self, session: AsyncSession, user_id: int, session_id: str,
+    ) -> None:
+        """Migrate anonymous reserved tickets to user on login."""
+        result = await session.execute(
+            select(Ticket).where(
+                Ticket.session_id == session_id,
+                Ticket.state == "reserved",
+            )
+        )
+        for ticket in result.scalars().all():
+            ticket.user_id = user_id

services/cart_impl.py

@@ -93,6 +93,23 @@ class SqlCartService:
         calendar_count = len(cal_entries)
         calendar_total = sum(Decimal(str(e.cost or 0)) for e in cal_entries if e.cost is not None)
 
+        # --- tickets ---
+        if page_post_id is not None:
+            tickets = await services.calendar.tickets_for_page(
+                session, page_post_id,
+                user_id=user_id,
+                session_id=session_id,
+            )
+        else:
+            tickets = await services.calendar.pending_tickets(
+                session,
+                user_id=user_id,
+                session_id=session_id,
+            )
+
+        ticket_count = len(tickets)
+        ticket_total = sum(Decimal(str(t.price or 0)) for t in tickets)
+
         items = [_item_to_dto(ci) for ci in cart_items]
 
         return CartSummaryDTO(
@@ -101,6 +118,8 @@ class SqlCartService:
             calendar_count=calendar_count,
             calendar_total=calendar_total,
             items=items,
+            ticket_count=ticket_count,
+            ticket_total=ticket_total,
         )
 
     async def cart_items(

services/stubs.py

@@ -98,6 +98,37 @@ class StubCalendarService:
     ) -> dict[int, list[CalendarEntryDTO]]:
         return {}
 
+    async def pending_tickets(
+        self, session: AsyncSession, *, user_id: int | None, session_id: str | None,
+    ) -> list[TicketDTO]:
+        return []
+
+    async def tickets_for_page(
+        self, session: AsyncSession, page_id: int, *, user_id: int | None, session_id: str | None,
+    ) -> list[TicketDTO]:
+        return []
+
+    async def claim_tickets_for_order(
+        self, session: AsyncSession, order_id: int, user_id: int | None,
+        session_id: str | None, page_post_id: int | None,
+    ) -> None:
+        pass
+
+    async def confirm_tickets_for_order(
+        self, session: AsyncSession, order_id: int,
+    ) -> None:
+        pass
+
+    async def get_tickets_for_order(
+        self, session: AsyncSession, order_id: int,
+    ) -> list[TicketDTO]:
+        return []
+
+    async def adopt_tickets_for_user(
+        self, session: AsyncSession, user_id: int, session_id: str,
+    ) -> None:
+        pass
+
 
 class StubMarketService:
     async def marketplaces_for_container(