68 lines
1.7 KiB
Dart
68 lines
1.7 KiB
Dart
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import 'dart:convert';
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import 'package:anyhow/anyhow.dart';
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import 'package:geojson/geojson.dart';
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import 'package:get/get.dart';
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import 'package:uninav/data/geo/model.dart';
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import 'package:uninav/data/geo/parser.dart';
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class MyMapController extends GetxController {
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// constructor that calls loadgeojson with a default geojson string
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final RxList<Feature> features = <Feature>[].obs;
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final currentLevel = 1.obs;
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final levels = <int>[1].obs;
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@override
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onInit() async {
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print("init");
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ever(features, refreshLevels);
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super.onInit();
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}
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void refreshLevels(List<Feature> curFeatures) {
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print("refreshLevels");
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final newLevels = <int>[1];
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for (final feature in curFeatures) {
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if (feature.level != null && !newLevels.contains(feature.level)) {
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newLevels.add(feature.level!);
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}
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}
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newLevels.sort();
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levels.value = newLevels;
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}
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Result<void> setLevel(int level) {
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// check that level is in features
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if (!levels.contains(level)) {
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return bail('Level $level is not in features');
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}
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currentLevel.value = level;
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return const Ok(());
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}
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Future<void> loadGeoJson(String geoJsonString) async {
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try {
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// print(geoJsonString);
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final featuresList = <Feature>[];
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final geojson = GeoJson();
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await geojson.parse(geoJsonString);
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for (final feature in geojson.features) {
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print(feature.properties);
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final parsed =
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parseFeature(feature.properties ?? <String, dynamic>{}, feature);
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if (parsed case Ok(:final ok)) {
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featuresList.add(ok);
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}
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}
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features.value = featuresList;
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} catch (e) {
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print('Error parsing GeoJSON: $e');
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}
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}
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}
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