add benzin to gasview

lib/services/econtrol_service.dart

@@ -7,11 +7,25 @@ class EControlService {
     double longitude,
     String fuelType,
   ) async {
-    // REST Service... URL
     String apiUrl =
         'https://api.e-control.at/sprit/1.0/search/gas-stations/by-address?latitude=$latitude&longitude=$longitude&fuelType=$fuelType&includeClosed=false';
     var response = await http.get(Uri.parse(apiUrl));
-    print('${response.statusCode}');
-    return jsonDecode(response.body);
+    if (response.statusCode == 200) {
+      return jsonDecode(response.body);
+    }
+    return [];
+  }
+
+  /// Holt parallel Diesel ('DIE') und Super ('SUP') Daten
+  Future<Map<String, List<dynamic>>> getBothFuelData(
+    double latitude,
+    double longitude,
+  ) async {
+    final results = await Future.wait([
+      getEControlData(latitude, longitude, 'DIE'),
+      getEControlData(latitude, longitude, 'SUP'),
+    ]);
+
+    return {'DIE': results[0], 'SUP': results[1]};
   }
 }