feat: update to lnbits 1.0.0 (#36)

services.py

@@ -0,0 +1,18 @@
+from .crud import get_event, update_event, update_ticket
+from .models import Ticket
+
+
+async def set_ticket_paid(ticket: Ticket) -> Ticket:
+    if ticket.paid:
+        return ticket
+
+    ticket.paid = True
+    await update_ticket(ticket)
+
+    event = await get_event(ticket.event)
+    assert event, "Couldn't get event from ticket being paid"
+    event.sold += 1
+    event.amount_tickets -= 1
+    await update_event(event)
+
+    return ticket