ElPoyo
102 lines
3.1 KiB
Dart
102 lines
3.1 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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// Test la route Saint-Martin -> Paris (autoroute avec péage)
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// Pour vérifier que la polyline longue se décode correctement en Dart
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void main() async {
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final envFile = File('functions/.env');
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final lines = await envFile.readAsLines();
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String apiKey = '';
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for (var line in lines) {
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if (line.startsWith('API_MAPS=')) {
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apiKey = line.split('=')[1].replaceAll('"', '').trim();
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}
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}
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final url = 'https://routes.googleapis.com/directions/v2:computeRoutes';
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final client = HttpClient();
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final request = await client.postUrl(Uri.parse(url));
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request.headers.set('Content-Type', 'application/json');
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request.headers.set('X-Goog-Api-Key', apiKey);
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request.headers.set('X-Goog-FieldMask', 'routes.distanceMeters,routes.duration,routes.polyline.encodedPolyline');
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final payload = jsonEncode({
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"travelMode": "DRIVE",
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"routingPreference": "TRAFFIC_AWARE",
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"routeModifiers": { "avoidTolls": false },
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"origin": { "address": "401 route du camping, 69850 Saint Martin en haut" },
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"destination": { "address": "Paris, France" }
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});
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request.write(payload);
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final response = await request.close();
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final responseBody = await response.transform(utf8.decoder).join();
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final json = jsonDecode(responseBody);
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final routes = json['routes'] as List;
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final polyStr = routes[0]['polyline']['encodedPolyline'] as String;
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final dist = routes[0]['distanceMeters'];
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print('Distance: ${(dist/1000).round()} km');
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print('Polyline longueur: ${polyStr.length} chars');
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print('Polyline (50 premiers): ${polyStr.substring(0, 50)}');
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// Décoder
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final pts = _decodePolyline(polyStr);
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print('Points décodés: ${pts.length}');
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// Chercher les points invalides
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var invalides = 0;
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for (final pt in pts) {
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if (pt[0].abs() > 90 || pt[1].abs() > 180) {
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invalides++;
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if (invalides <= 3) print(' *** INVALIDE: ${pt[0]}, ${pt[1]}');
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}
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}
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if (invalides == 0) {
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print('✅ Tous les ${pts.length} points sont valides WGS84');
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print('Premier: ${pts[0][0].toStringAsFixed(5)}, ${pts[0][1].toStringAsFixed(5)}');
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print('Dernier: ${pts.last[0].toStringAsFixed(5)}, ${pts.last[1].toStringAsFixed(5)}');
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} else {
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print('❌ $invalides points invalides détectés');
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}
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client.close();
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}
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List<List<double>> _decodePolyline(String encoded) {
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List<List<double>> poly = [];
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int index = 0, len = encoded.length;
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int lat = 0, lng = 0;
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while (index < len) {
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int b, shift = 0, result = 0;
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do {
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if (index >= len) break;
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b = encoded.codeUnitAt(index++) - 63;
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result |= (b & 0x1f) << shift;
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shift += 5;
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} while (b >= 0x20);
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int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
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lat += dlat;
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shift = 0;
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result = 0;
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do {
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if (index >= len) break;
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b = encoded.codeUnitAt(index++) - 63;
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result |= (b & 0x1f) << shift;
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shift += 5;
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} while (b >= 0x20);
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int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
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lng += dlng;
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double finalLat = lat / 1e5;
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double finalLng = lng / 1e5;
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poly.add([finalLat, finalLng]);
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}
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return poly;
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}
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