1 files changed, 86 insertions, 0 deletions
diff --git a/lib/map/networkPolyline.dart b/lib/map/networkPolyline.dart
new file mode 100644
index 0000000..0241bec
--- /dev/null
+++ b/lib/map/networkPolyline.dart
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: Apache-2.0
+
+import 'dart:math';
+import 'package:flutter_cluster_dashboard/cluster_config.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:http/http.dart' as http;
+import 'dart:convert';
+import 'package:latlong2/latlong.dart';
+
+class NetworkHelper {
+  NetworkHelper(
+      {required this.startLng,
+      required this.startLat,
+      required this.endLng,
+      required this.endLat});
+
+  final String url = 'https://api.openrouteservice.org/v2/directions/';
+
+  final double startLng;
+  final double startLat;
+  final double endLng;
+  final double endLat;
+
+  Future getData(WidgetRef ref) async {
+    final config = ref.read(clusterConfigStateprovider);
+    String uriStr =
+        '$url${config.orsPathParam}?api_key=${config.orsApiKey}&start=$startLng,$startLat&end=$endLng,$endLat';
+    http.Response response = await http.get(Uri.parse(uriStr));
+
+    if (response.statusCode == 200) {
+      String data = response.body;
+      return jsonDecode(data);
+    } else {
+      print("Warning: API Response Code: ${response.statusCode}");
+    }
+  }
+}
+
+Future getJsonData(
+  WidgetRef ref,
+  double startLat,
+  double startLng,
+  double endLat,
+  double endLng,
+) async {
+  if (startLat == endLat && startLng == endLng) {
+    return [];
+  } else {
+    NetworkHelper network = NetworkHelper(
+      startLat: startLat,
+      startLng: startLng,
+      endLat: endLat,
+      endLng: endLng,
+    );
+    try {
+      final apikey = ref.read(clusterConfigStateprovider).orsApiKey;
+      if (apikey.isNotEmpty) {
+        var data = await network.getData(ref);
+        return data['features'][0]['geometry']['coordinates'];
+      }
+      else {
+        return [];
+      }
+    } catch (error) {
+      print('Warning: Something Wrong with openstreet API Key !');
+      return [];
+    }
+  }
+}
+
+double calcAngle(LatLng a, LatLng b) {
+  List<double> newA = convertCoord(a);
+  List<double> newB = convertCoord(b);
+  double slope = (newB[1] - newA[1]) / (newB[0] - newA[0]);
+  // -1 * deg + 180
+  return ((atan(slope) * 180) / pi);
+}
+
+List<double> convertCoord(LatLng coord) {
+  double oldLat = coord.latitude;
+  double oldLong = coord.longitude;
+  double newLong = (oldLong * 20037508.34 / 180);
+  double newlat =
+      (log(tan((90 + oldLat) * pi / 360)) / (pi / 180)) * (20037508.34 / 180);
+  return [newlat, newLong];
+}