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// 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];
}
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