Térképi rétegkezelő lérehozása, track online mentésének előkészítése

lib/map_layers/map_dxf_layer.dart

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+// import 'package:flutter/material.dart';
+// import 'package:terepi_seged/map_layers/map_layer.dart';
+
+// import 'map_geojson_layer.dart';
+
+// class DxfLayer extends MapLayer {
+//   // DXF parsing — nincs Flutter csomag, szerver oldali konverzió kell
+//   // Supabase Edge Function: DXF → GeoJSON (ogr2ogr alapú)
+//   @override
+//   Widget buildFlutterMapLayer() => GeoJsonLayer.fromFeatures(_features);
+// }

lib/map_layers/map_geojson_layer.dart

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+// import 'package:flutter/material.dart';
+// import 'package:flutter_map/flutter_map.dart';
+
+// import 'map_layer.dart';
+
+// class GeoJsonLayer extends MapLayer {
+//   final String sourceUrl; // Supabase Storage URL
+//   final String? localPath; // offline cache
+//   FeatureCollection? _data;
+
+//   @override
+//   Widget buildFlutterMapLayer() {
+//     if (_data == null) return const SizedBox.shrink();
+//     return PolygonLayer(polygons: _buildPolygons());
+//     // vagy PolylineLayer / MarkerLayer a geometry type-tól függően
+//   }
+// }

lib/map_layers/map_layer.dart

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+import 'package:flutter/material.dart';
+import 'package:terepi_seged/enums/map_layer_type.dart';
+import 'package:terepi_seged/enums/map_layer_visibility.dart';
+
+abstract class MapLayer {
+  late final String id;
+  late final String name;
+  late final LayerType type;
+  late LayerVisibility visibility;
+  late double opacity;
+  late int zIndex;
+  //LayerStyle style;
+
+  // Minden réteg tudja magát flutter_map widget-té alakítani
+  Widget buildFlutterMapLayer();
+
+  // Offline cache-elhetőség
+  Future<void> prefetch();
+  bool get isCached;
+}

lib/map_layers/map_postgis_layer.dart

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+// import 'package:flutter/material.dart';
+// import 'package:flutter_map/flutter_map.dart';
+// import 'package:supabase_flutter/supabase_flutter.dart';
+
+// import 'map_layer.dart';
+
+// class PostGisLayer extends MapLayer {
+//   final String table; // Supabase tábla neve
+//   final String geomColumn; // geometry oszlop
+//   final String? filter; // pl. "project_id=eq.123"
+//   final BoundingBox? bbox; // csak látható terület lekérése
+
+//   @override
+//   Widget buildFlutterMapLayer() {
+//     // flutter_map_tile_caching + PostGIS tile endpoint
+//     return TileLayer(urlTemplate: _buildMvtUrl());
+//   }
+
+//   // MapBox Vector Tiles (MVT) Supabase Edge Function-ből
+//   String _buildMvtUrl() =>
+//       '${Supabase.instance.client.supabaseUrl}/functions/v1/tiles'
+//       '/$table/{z}/{x}/{y}?geom=$geomColumn${filter != null ? "&filter=$filter" : ""}';
+// }

lib/map_layers/map_shapefile_layer.dart

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+// import 'package:flutter/material.dart';
+
+// import 'map_geojson_layer.dart';
+// import 'map_layer.dart';
+
+// class ShapefileLayer extends MapLayer {
+//   // SHP → GeoJSON konverzió device-on
+//   // shapefile_dart csomag
+//   @override
+//   Widget buildFlutterMapLayer() => GeoJsonLayer.fromFeatures(_features);
+// }