Show distances for all past and future trips.

web_view.py

@@ -8,6 +8,7 @@ import operator
 import os.path
 import sys
 import traceback
+from collections import defaultdict
 from datetime import date, datetime, timedelta
 
 import flask
@@ -286,6 +287,27 @@ def trip_list() -> werkzeug.Response:
     return flask.redirect(flask.url_for("trip_future_list"))
 
 
+def calc_total_distance(trips: list[Trip]) -> float:
+    """Total distance for trips."""
+    total = 0.0
+    for item in trips:
+        dist = item.total_distance()
+        if dist:
+            total += dist
+
+    return total
+
+
+def sum_distances_by_transport_type(trips: list[Trip]) -> list[tuple[str, float]]:
+    """Sum distances by transport type."""
+    distances_by_transport_type: defaultdict[str, float] = defaultdict(float)
+    for trip in trips:
+        for transport_type, dist in trip.distances_by_transport_type():
+            distances_by_transport_type[transport_type] += dist
+
+    return list(distances_by_transport_type.items())
+
+
 @app.route("/trip/past")
 def trip_past_list() -> str:
     """Page showing a list of past trips."""
@@ -307,6 +329,8 @@ def trip_past_list() -> str:
         get_country=agenda.get_country,
         format_list_with_ampersand=format_list_with_ampersand,
         fx_rate=agenda.fx.get_rates(app.config),
+        total_distance=calc_total_distance(past),
+        distances_by_transport_type=sum_distances_by_transport_type(past),
     )
 
 
@@ -337,6 +361,8 @@ def trip_future_list() -> str:
         get_country=agenda.get_country,
         format_list_with_ampersand=format_list_with_ampersand,
         fx_rate=agenda.fx.get_rates(app.config),
+        total_distance=calc_total_distance(current + future),
+        distances_by_transport_type=sum_distances_by_transport_type(current + future),
     )