Try something to sort locations along tracked trips

web/drafting-board.js

@@ -15,6 +15,8 @@ export function addJourneyToDraftingBoard(journey) {
 		});
 	}
 
+	trackedTripsLocationsSorted();
+
 	let station_offset = 0;
 	let trip_offset = 1;
 
@@ -129,3 +131,53 @@ export function addJourneyToDraftingBoard(journey) {
 		trip_offset += 1;
 	}
 }
+
+export function getLocationWithLeastInboundTrips(locations, trips) {
+	function numberOfInboundTrips(location) {
+		return trips.filter(trip => trip.destination == location).length;
+	}
+
+	let locations_sorted_by_number_of_inbound_trips = locations.toSorted((location_a, location_b) => {
+		let n_a = numberOfInboundTrips(location_a);
+		let n_b = numberOfInboundTrips(location_b);
+
+		if (n_a == n_b) {
+			return 0;
+		} else if (n_a > n_b) {
+			return 1;
+		} else {
+			return -1;
+		}
+	});
+
+	return locations_sorted_by_number_of_inbound_trips[0];
+}
+
+export function sortLocations(sorted_locations, unsorted_locations, trips) {
+	if (unsorted_locations.length == 0) {
+		return sorted_locations;
+	}
+
+	let selected_location = getLocationWithLeastInboundTrips(unsorted_locations, trips);
+
+	unsorted_locations = unsorted_locations.filter(location => location != selected_location);
+	trips = trips.filter(trip => trip.destination != selected_location && trip.origin != selected_location);
+
+	return sortLocations(sorted_locations.concat([ selected_location ]), unsorted_locations, trips);
+}
+
+export function trackedTripsLocationsSorted() {
+	let tracked_trips = DataStore.tracked_trips.get();
+	let tracked_locations = Array.from(new Set(tracked_trips.map(trip => trip.origin).concat(tracked_trips.map(trip => trip.destination))));
+
+	console.log(tracked_trips);
+	console.log(tracked_locations);
+
+	let sorted_locations = sortLocations([], tracked_locations, tracked_trips);
+
+	console.log(sorted_locations);
+
+	console.log(sorted_locations.map(item => DataStore.locations.get()[item]?.name));
+
+
+}

web/traveldrafter.js

@@ -2,6 +2,7 @@ import * as Api from './api.js';
 import { setupPopups } from "./popup.js";
 import { setupLocationsSearch } from './locations-search.js';
 import { setupJourneysSearch, attachJourneysSearch } from './journeys-search.js';
+import { trackedTripsLocationsSorted } from './drafting-board.js';
 import { DataStore } from './datastore.js';
 
 window.Api = Api;
@@ -12,3 +13,5 @@ setupLocationsSearch();
 setupJourneysSearch();
 
 attachJourneysSearch(document.querySelector("#journeys-search-button"));
+
+trackedTripsLocationsSorted();