Show individual rail legs as separate events

Closes: #64

agenda/travel.py

@@ -38,6 +38,25 @@ def get(
     ]
 
 
+def get_trains(from_date: date, filepath: str) -> list[Event]:
+    """Get train events."""
+    events: list[Event] = []
+    for item in yaml.safe_load(open(filepath)):
+        if item["depart"].date() < from_date:
+            continue
+        events += [
+            Event(
+                date=leg["depart"],
+                end_date=leg["arrive"],
+                name="transport",
+                title=f'train from {leg["from"]} to {leg["to"]}',
+                url=item.get("url"),
+            )
+            for leg in item["legs"]
+        ]
+    return events
+
+
 def flight_number(flight: Leg) -> str:
     """Flight number."""
     airline_code = flight["airline"]
@@ -49,7 +68,7 @@ def flight_number(flight: Leg) -> str:
 
 def all_events(from_date: date, data_dir: str) -> list[Event]:
     """Get all flights and rail journeys."""
-    trains = get(from_date, "train", os.path.join(data_dir, "trains.yaml"))
+    trains = get_trains(from_date, os.path.join(data_dir, "trains.yaml"))
     flights = get(
         from_date, "flight", os.path.join(data_dir, "flights.yaml"), extra=flight_number
     )