fix(api_handler): fix wrong date being shown for journeys going past midnight

lib/api_handler.dart

@@ -5,14 +5,7 @@ import 'dart:core';
 import 'dart:convert';
 
 import 'transport_helper.dart';
-
-String timeOf(DateTime fullDT) {
-  // doing it this way so we always get two digits on the hour
-  String full = fullDT.toString();
-  List<String> splits = full.split(" ")[1].split(":");
-  String time = '${splits[0]}:${splits[1]}';
-  return time;
-}
+import 'utilities.dart';
 
 class ApiHandler {
   // TODO: Split next line for better Error Handling
@@ -79,7 +72,7 @@ class ApiHandler {
   static Future<List<Departure>> departures(
     String stationId, {
     int? maxDepartures = -1,
-    DateTime? time,
+    DateTime? datetime,
     int? duration = 0,
   }) async {
     String urlPath = '/api/fahrinfo/latest/departureBoard';
@@ -88,8 +81,9 @@ class ApiHandler {
     Uri url = Uri.https(baseUrl, urlPath, {
       'accessId': accessID,
       'id': stationString,
+      'date': dateOf(datetime ?? DateTime.now()),
       'time': timeOf(
-        time ?? DateTime.now(),
+        datetime ?? DateTime.now(),
       ), //time from which departures will be shown
       'duration': duration.toString(), //interval time in minutes
       'maxJourneys': maxDepartures.toString(),

lib/main.dart

@@ -292,7 +292,7 @@ class _ChooseDeparturePageState extends State<ChooseDeparturePage> {
   void loadDepartures(Station startStation) async {
     departureList = await ApiHandler.departures(
       startStation.id,
-      time: widget.arrival?.arrivalTime ?? DateTime.now(),
+      datetime: widget.arrival?.arrivalTime ?? DateTime.now(),
     );
     setState(() {});
   }

lib/utilities.dart

@@ -0,0 +1,13 @@
+String timeOf(DateTime fullDT) {
+  // doing it this way so we always get two digits on the hour
+  String full = fullDT.toString();
+  List<String> splits = full.split(" ")[1].split(":");
+  String time = '${splits[0]}:${splits[1]}';
+  return time;
+}
+
+String dateOf(DateTime fullDT) {
+  String full = fullDT.toString();
+  String date = full.split(" ")[0];
+  return date;
+}