Map of all upcoming travel on trips page

Closes: #107

agenda/trip.py

@@ -0,0 +1,184 @@
+import operator
+import os
+from datetime import date
+
+import flask
+
+from agenda import travel
+from agenda.types import StrDict, Trip
+
+
+def load_travel(travel_type: str) -> list[StrDict]:
+    """Read flight and train journeys."""
+    data_dir = flask.current_app.config["PERSONAL_DATA"]
+    items = travel.parse_yaml(travel_type + "s", data_dir)
+    for item in items:
+        item["type"] = travel_type
+    return items
+
+
+def load_trains() -> list[StrDict]:
+    """Load trains."""
+    data_dir = flask.current_app.config["PERSONAL_DATA"]
+
+    trains = load_travel("train")
+    stations = travel.parse_yaml("stations", data_dir)
+    by_name = {station["name"]: station for station in stations}
+
+    for train in trains:
+        assert train["from"] in by_name
+        assert train["to"] in by_name
+        train["from_station"] = by_name[train["from"]]
+        train["to_station"] = by_name[train["to"]]
+
+        for leg in train["legs"]:
+            assert leg["from"] in by_name
+            assert leg["to"] in by_name
+            leg["from_station"] = by_name[leg["from"]]
+            leg["to_station"] = by_name[leg["to"]]
+
+    return trains
+
+
+def load_flights() -> list[StrDict]:
+    """Load flights."""
+    data_dir = flask.current_app.config["PERSONAL_DATA"]
+    flights = load_travel("flight")
+    airports = travel.parse_yaml("airports", data_dir)
+    for flight in flights:
+        if flight["from"] in airports:
+            flight["from_airport"] = airports[flight["from"]]
+        if flight["to"] in airports:
+            flight["to_airport"] = airports[flight["to"]]
+    return flights
+
+
+def build_trip_list() -> list[Trip]:
+    """Generate list of trips."""
+    trips: dict[date, Trip] = {}
+
+    data_dir = flask.current_app.config["PERSONAL_DATA"]
+
+    travel_items = sorted(
+        load_flights() + load_trains(), key=operator.itemgetter("depart")
+    )
+
+    data = {
+        "travel": travel_items,
+        "accommodation": travel.parse_yaml("accommodation", data_dir),
+        "conferences": travel.parse_yaml("conferences", data_dir),
+        "events": travel.parse_yaml("events", data_dir),
+    }
+
+    for key, item_list in data.items():
+        assert isinstance(item_list, list)
+        for item in item_list:
+            if not (start := item.get("trip")):
+                continue
+            if start not in trips:
+                trips[start] = Trip(start=start)
+            getattr(trips[start], key).append(item)
+
+    return [trip for _, trip in sorted(trips.items())]
+
+
+def collect_trip_coordinates(trip: Trip) -> list[StrDict]:
+    """Extract and deduplicate airport and station coordinates from trip."""
+    stations = {}
+    station_list = []
+    airports = {}
+    for t in trip.travel:
+        if t["type"] == "train":
+            station_list += [t["from_station"], t["to_station"]]
+            for leg in t["legs"]:
+                station_list.append(leg["from_station"])
+                station_list.append(leg["to_station"])
+        else:
+            assert t["type"] == "flight"
+            for field in "from_airport", "to_airport":
+                if field in t:
+                    airports[t[field]["iata"]] = t[field]
+
+    for s in station_list:
+        if s["uic"] in stations:
+            continue
+        stations[s["uic"]] = s
+
+    return [
+        {
+            "name": s["name"],
+            "type": "station",
+            "latitude": s["latitude"],
+            "longitude": s["longitude"],
+        }
+        for s in stations.values()
+    ] + [
+        {
+            "name": s["name"],
+            "type": "airport",
+            "latitude": s["latitude"],
+            "longitude": s["longitude"],
+        }
+        for s in airports.values()
+    ]
+
+
+def latlon_tuple(stop: StrDict) -> tuple[float, float]:
+    """Given a transport stop return the lat/lon as a tuple."""
+    return (stop["latitude"], stop["longitude"])
+
+
+def read_geojson(filename: str) -> str:
+    """Read GeoJSON from file."""
+    data_dir = flask.current_app.config["PERSONAL_DATA"]
+    return open(os.path.join(data_dir, "train_routes", filename + ".geojson")).read()
+
+
+def get_trip_routes(trip: Trip) -> list[StrDict]:
+    """Get routes for given trip to show on map."""
+    routes = []
+    seen_geojson = set()
+    for t in trip.travel:
+        if t["type"] == "flight":
+            if "from_airport" not in t or "to_airport" not in t:
+                continue
+            fly_from, fly_to = t["from_airport"], t["to_airport"]
+            key = "_".join(["flight"] + sorted([fly_from["iata"], fly_to["iata"]]))
+            routes.append(
+                {
+                    "type": "flight",
+                    "key": key,
+                    "from": latlon_tuple(fly_from),
+                    "to": latlon_tuple(fly_to),
+                }
+            )
+            continue
+        assert t["type"] == "train"
+        for leg in t["legs"]:
+            train_from, train_to = leg["from_station"], leg["to_station"]
+            geojson_filename = train_from.get("routes", {}).get(train_to["uic"])
+            key = "_".join(["train"] + sorted([train_from["name"], train_to["name"]]))
+            if not geojson_filename:
+                routes.append(
+                    {
+                        "type": "train",
+                        "key": key,
+                        "from": latlon_tuple(train_from),
+                        "to": latlon_tuple(train_to),
+                    }
+                )
+                continue
+
+            if geojson_filename in seen_geojson:
+                continue
+            seen_geojson.add(geojson_filename)
+
+            routes.append(
+                {
+                    "type": "train",
+                    "key": key,
+                    "geojson_filename": geojson_filename,
+                }
+            )
+
+    return routes

templates/trips.html

@@ -5,6 +5,11 @@
 {% set row = { "flight": flight_row, "train": train_row } %}
 
 {% block style %}
+
+ <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
+     integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY="
+     crossorigin=""/>
+
 {% set conference_column_count = 6 %}
 {% set accommodation_column_count = 7 %}
 {% set travel_column_count = 7 %}
@@ -33,6 +38,13 @@
 .grid-item {
   /* Additional styling for grid items can go here */
 }
+
+#map {
+  height: 80vh;
+}
+
+
+
 </style>
 {% endblock %}
 
@@ -79,11 +91,69 @@
 {% block content %}
 <div class="p-2">
 
+  <div id="map"></div>
 
   <h1>Trips</h1>
     {{ section("Current", current, "attending") }}
     {{ section("Future", future, "going") }}
     {{ section("Past", past|reverse, "went") }}
 </div>
-
+{% endblock %}
+
+{% block scripts %}
+
+<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
+   integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo="
+   crossorigin=""></script>
+
+<script>
+var future_coordinates = {{ future_coordinates | tojson }};
+var future_routes = {{ future_routes | tojson }};
+
+// Initialize the map
+var map = L.map('map').fitBounds(future_coordinates.map(function(station) {
+  return [station.latitude, station.longitude];
+}));
+
+// Set up the tile layer
+L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+  attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
+}).addTo(map);
+
+var stationIcon = L.divIcon({
+  className: 'custom-div-icon',
+  html: "<div style='font-size: 24px;'>🚉</div>",
+  iconSize: [30, 42],
+});
+
+var airportIcon = L.divIcon({
+  className: 'custom-div-icon',
+  html: "<div style='font-size: 24px;'>✈️</div>",
+  iconSize: [30, 42],
+});
+
+// Add markers with appropriate icons to the map
+future_coordinates.forEach(function(item) {
+  var icon = item.type === "station" ? stationIcon : airportIcon;
+  var marker = L.marker([item.latitude, item.longitude], { icon: icon }).addTo(map);
+  marker.bindPopup(item.name);
+});
+
+// Draw routes
+future_routes.forEach(function(route) {
+  if (route.geojson) {
+    // If route is defined as GeoJSON
+    L.geoJSON(JSON.parse(route.geojson), {
+      style: function(feature) {
+        return {color: route.type === "train" ? "blue" : "blue"}; // Green for trains, blue for flights
+      }
+    }).addTo(map);
+  } else {
+    // If route is defined by 'from' and 'to' coordinates
+    var color = route.type === "train" ? "blue" : "red"; // Green for trains, red for flights
+    L.polyline([route.from, route.to], {color: color}).addTo(map);
+  }
+});
+
+</script>
 {% endblock %}

web_view.py

@@ -17,8 +17,8 @@ import yaml
 import agenda.data
 import agenda.error_mail
 import agenda.thespacedevs
+import agenda.trip
 from agenda import format_list_with_ampersand, travel
-from agenda.types import StrDict, Trip
 
 app = flask.Flask(__name__)
 app.debug = False
@@ -155,84 +155,10 @@ def accommodation_list() -> str:
     )
 
 
-def load_travel(travel_type: str) -> list[StrDict]:
-    """Read flight and train journeys."""
-    data_dir = app.config["PERSONAL_DATA"]
-    items = travel.parse_yaml(travel_type + "s", data_dir)
-    for item in items:
-        item["type"] = travel_type
-    return items
-
-
-def load_trains() -> list[StrDict]:
-    """Load trains."""
-    data_dir = app.config["PERSONAL_DATA"]
-
-    trains = load_travel("train")
-    stations = travel.parse_yaml("stations", data_dir)
-    by_name = {station["name"]: station for station in stations}
-
-    for train in trains:
-        assert train["from"] in by_name
-        assert train["to"] in by_name
-        train["from_station"] = by_name[train["from"]]
-        train["to_station"] = by_name[train["to"]]
-
-        for leg in train["legs"]:
-            assert leg["from"] in by_name
-            assert leg["to"] in by_name
-            leg["from_station"] = by_name[leg["from"]]
-            leg["to_station"] = by_name[leg["to"]]
-
-    return trains
-
-
-def load_flights() -> list[StrDict]:
-    """Load flights."""
-    data_dir = app.config["PERSONAL_DATA"]
-    flights = load_travel("flight")
-    airports = travel.parse_yaml("airports", data_dir)
-    for flight in flights:
-        if flight["from"] in airports:
-            flight["from_airport"] = airports[flight["from"]]
-        if flight["to"] in airports:
-            flight["to_airport"] = airports[flight["to"]]
-    return flights
-
-
-def build_trip_list() -> list[Trip]:
-    """Generate list of trips."""
-    trips: dict[date, Trip] = {}
-
-    data_dir = app.config["PERSONAL_DATA"]
-
-    travel_items = sorted(
-        load_flights() + load_trains(), key=operator.itemgetter("depart")
-    )
-
-    data = {
-        "travel": travel_items,
-        "accommodation": travel.parse_yaml("accommodation", data_dir),
-        "conferences": travel.parse_yaml("conferences", data_dir),
-        "events": travel.parse_yaml("events", data_dir),
-    }
-
-    for key, item_list in data.items():
-        assert isinstance(item_list, list)
-        for item in item_list:
-            if not (start := item.get("trip")):
-                continue
-            if start not in trips:
-                trips[start] = Trip(start=start)
-            getattr(trips[start], key).append(item)
-
-    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()
+    trip_list = agenda.trip.build_trip_list()
 
     today = date.today()
     current = [
@@ -244,117 +170,45 @@ def trip_list() -> str:
     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]
 
+    future_coordinates = []
+    seen_future_coordinates: set[tuple[str, str]] = set()
+    future_routes = []
+    seen_future_routes: set[str] = set()
+    for trip in future:
+        for stop in agenda.trip.collect_trip_coordinates(trip):
+            key = (stop["type"], stop["name"])
+            if key in seen_future_coordinates:
+                continue
+            future_coordinates.append(stop)
+            seen_future_coordinates.add(key)
+
+        for route in agenda.trip.get_trip_routes(trip):
+            if route["key"] in seen_future_routes:
+                continue
+            future_routes.append(route)
+            seen_future_routes.add(route["key"])
+
+    for route in future_routes:
+        if "geojson_filename" in route:
+            route["geojson"] = agenda.trip.read_geojson(route.pop("geojson_filename"))
+
     return flask.render_template(
         "trips.html",
         current=current,
         past=past,
         future=future,
+        future_coordinates=future_coordinates,
+        future_routes=future_routes,
         today=today,
         get_country=agenda.get_country,
         format_list_with_ampersand=format_list_with_ampersand,
     )
 
 
-def collect_trip_coordinates(trip: Trip) -> list[StrDict]:
-    """Extract and deduplicate airport and station coordinates from trip."""
-    stations = {}
-    station_list = []
-    airports = {}
-    for t in trip.travel:
-        if t["type"] == "train":
-            station_list += [t["from_station"], t["to_station"]]
-            for leg in t["legs"]:
-                station_list.append(leg["from_station"])
-                station_list.append(leg["to_station"])
-        else:
-            assert t["type"] == "flight"
-            for field in "from_airport", "to_airport":
-                if field in t:
-                    airports[t[field]["iata"]] = t[field]
-
-    for s in station_list:
-        if s["uic"] in stations:
-            continue
-        stations[s["uic"]] = s
-
-    return [
-        {
-            "name": s["name"],
-            "type": "station",
-            "latitude": s["latitude"],
-            "longitude": s["longitude"],
-        }
-        for s in stations.values()
-    ] + [
-        {
-            "name": s["name"],
-            "type": "airport",
-            "latitude": s["latitude"],
-            "longitude": s["longitude"],
-        }
-        for s in airports.values()
-    ]
-
-
-def latlon_tuple(stop: StrDict) -> tuple[float, float]:
-    """Given a transport stop return the lat/lon as a tuple."""
-    return (stop["latitude"], stop["longitude"])
-
-
-def read_geojson(filename: str) -> str:
-    data_dir = app.config["PERSONAL_DATA"]
-    return open(os.path.join(data_dir, "train_routes", filename + ".geojson")).read()
-
-
-def get_trip_routes(trip: Trip) -> list[StrDict]:
-    routes = []
-    seen_geojson = set()
-    for t in trip.travel:
-        if t["type"] == "flight":
-            if "from_airport" not in t or "to_airport" not in t:
-                continue
-            fly_from, fly_to = t["from_airport"], t["to_airport"]
-            routes.append(
-                {
-                    "type": "flight",
-                    "from": latlon_tuple(fly_from),
-                    "to": latlon_tuple(fly_to),
-                }
-            )
-
-        else:
-            assert t["type"] == "train"
-            for leg in t["legs"]:
-                train_from, train_to = leg["from_station"], leg["to_station"]
-                geojson_filename = train_from.get("routes", {}).get(train_to["uic"])
-                if not geojson_filename:
-                    routes.append(
-                        {
-                            "type": "train",
-                            "from": latlon_tuple(train_from),
-                            "to": latlon_tuple(train_to),
-                        }
-                    )
-                    continue
-
-                if geojson_filename in seen_geojson:
-                    continue
-                seen_geojson.add(geojson_filename)
-
-                routes.append(
-                    {
-                        "type": "train",
-                        "geojson": read_geojson(geojson_filename),
-                    }
-                )
-
-    return routes
-
-
 @app.route("/trip/<start>")
 def trip_page(start: str) -> str:
     """Individual trip page."""
-    trip_list = build_trip_list()
+    trip_list = agenda.trip.build_trip_list()
     today = date.today()
 
     trip = next((trip for trip in trip_list if trip.start.isoformat() == start), None)
@@ -362,8 +216,11 @@ def trip_page(start: str) -> str:
     if not trip:
         flask.abort(404)
 
-    coordinates = collect_trip_coordinates(trip)
-    routes = get_trip_routes(trip)
+    coordinates = agenda.trip.collect_trip_coordinates(trip)
+    routes = agenda.trip.get_trip_routes(trip)
+    for route in routes:
+        if "geojson_filename" in route:
+            route["geojson"] = agenda.trip.read_geojson(route.pop("geojson_filename"))
 
     return flask.render_template(
         "trip_page.html",