Split up trips page and sort like conference page

Closes: #94

web_view.py

@@ -164,9 +164,8 @@ def load_travel(travel_type: str) -> list[StrDict]:
     return items
 
 
-@app.route("/trip")
-def trip_list() -> str:
-    """Page showing a list of trips."""
+def build_trip_list() -> list[Trip]:
+    """Generate list of trips."""
     trips: dict[date, Trip] = {}
 
     data_dir = app.config["PERSONAL_DATA"]
@@ -190,11 +189,30 @@ def trip_list() -> str:
                 trips[start] = Trip(start=start)
             getattr(trips[start], key).append(item)
 
-    trip_list = [trip for _, trip in sorted(trips.items(), reverse=True)]
+    return [trip for _, trip in sorted(trips.items())]
+
+
+@app.route("/trip")
+def trip_list() -> str:
+    """Page showing a list of trips."""
+    trip_list = build_trip_list()
+
+    today = date.today()
+    current = [
+        item
+        for item in trip_list
+        if item.start <= today and (item.end or item.start) >= today
+    ]
+
+    past = [item for item in trip_list if (item.end or item.start) < today]
+    future = [item for item in trip_list if item.start > today]
 
     return flask.render_template(
         "trips.html",
-        trips=trip_list,
+        current=current,
+        past=past,
+        future=future,
+        today=today,
         get_country=agenda.get_country,
         format_list_with_ampersand=format_list_with_ampersand,
     )