Show current trip on home page

web_view.py

@@ -68,6 +68,19 @@ def exception_handler(e: werkzeug.exceptions.InternalServerError) -> tuple[str,
     )
 
 
+def get_current_trip(today: date) -> Trip | None:
+    """Get current trip."""
+    trip_list = get_trip_list(route_distances=None)
+
+    current = [
+        item
+        for item in trip_list
+        if item.start <= today and (item.end or item.start) >= today
+    ]
+    assert len(current) < 2
+    return current[0] if current else None
+
+
 @app.route("/")
 async def index() -> str:
     """Index page."""
@@ -87,6 +100,7 @@ async def index() -> str:
         "event_list.html",
         today=now.date(),
         events=events,
+        current_trip=get_current_trip(now.date()),
         fullcalendar_events=calendar.build_events(events),
         start_event_list=date.today() - timedelta(days=1),
         end_event_list=date.today() + timedelta(days=365 * 2),