import 'dart:convert';
import 'dart:io';
import 'package:latlong2/latlong.dart';
import '../lib/utils/polyline_utils.dart';

void main() async {
  final origin = "401 route du camping, 69850 Saint Martin en haut";
  final destination = "Salle des fêtes, Orliénas";

  final requestBody = jsonEncode({
    "data": {
      "origin": origin,
      "destination": destination,
      "vehicleTollCategory": 2
    }
  });

  print("Fetching route...");
  final request = await HttpClient().postUrl(Uri.parse('https://googlemapscomputeroute-iarazmuuzq-od.a.run.app'));
  request.headers.set('Content-Type', 'application/json');
  request.write(requestBody);
  
  final response = await request.close();
  final responseBody = await response.transform(utf8.decoder).join();
  
  print("Status: ${response.statusCode}");
  
  try {
    final json = jsonDecode(responseBody);
    final routes = json['routes'] as List;
    for (int i = 0; i < routes.length; i++) {
      final polyStr = routes[i]['encodedPolyline'];
      print("Route $i polyline length: ${polyStr.length}");
      final pts = safeDecodePolyline(polyStr);
      print("Route $i points decoded: ${pts.length}");
      if (pts.isNotEmpty) {
        print("   Start: ${pts.first.latitude}, ${pts.first.longitude}");
        print("   End:   ${pts.last.latitude}, ${pts.last.longitude}");
      }
    }
  } catch (e) {
    print("Error parsing: $e");
    print(responseBody);
  }
}