undid unwanted changes

lib/pages/map_page.dart

@@ -20,22 +20,36 @@ class MapPage extends StatefulWidget {
 }
 
 class _MapPageState extends State<MapPage> {
-  final mapController = MapController();
+  final _mapController = MapController();
   late FloodStationProvider _floodStationProvider;
+  bool _loading = false;
 
   @override
   Widget build(BuildContext context) {
     _floodStationProvider = context.watch<FloodStationProvider>();
-    if (_floodStationProvider.allStations.isEmpty) {
+    if (_loading == true) {
+      return Center(
+        child: CircularProgressIndicator(),
+      );
+    } else if (_floodStationProvider.allStations.isEmpty) {
       return Center(
         child: ElevatedButton(
-          onPressed: _floodStationProvider.loadAllStations,
+          onPressed: () {
+            setState(() {
+              _loading = true;
+            });
+            _floodStationProvider
+                .loadAllStations()
+                .whenComplete(() => setState(() {
+                      _loading = false;
+                    }));
+          },
           child: Text('Load Map'),
         ),
       );
     }
     return FlutterMap(
-      mapController: mapController,
+      mapController: _mapController,
       options: MapOptions(
         cameraConstraint: CameraConstraint.containCenter(
             bounds: LatLngBounds.fromPoints(_floodStationProvider.allStations
@@ -56,13 +70,14 @@ class _MapPageState extends State<MapPage> {
               padding: EdgeInsets.all(50),
               maxZoom: 15,
               markers: _stationsAsMarkers(_floodStationProvider.allStations),
-              builder: _markerBuilder),
+              builder: _clusterMarkerBuilder),
         )
       ],
     );
   }
 
-  Widget _markerBuilder(BuildContext context, List<Marker> markers) {
+  // builds the clustered marker
+  Widget _clusterMarkerBuilder(BuildContext context, List<Marker> markers) {
     return Container(
       decoration: BoxDecoration(
         borderRadius: BorderRadius.circular(20),
@@ -71,7 +86,7 @@ class _MapPageState extends State<MapPage> {
       child: Center(
         child: Text(
           markers.length.toString(),
-          style: const TextStyle(color: Colors.white),
+          style: TextStyle(color: Theme.of(context).colorScheme.onTertiary),
         ),
       ),
     );
@@ -92,7 +107,7 @@ class _MapPageState extends State<MapPage> {
         .toList();
   }
 
-  _markerTapped(FloodStation station) {
+  void _markerTapped(FloodStation station) {
     showDialog(
       context: context,
       builder: (context) => MapPopup(