feat: (broken) implement route map and address autocomplete widgets with associated infrastructure testing scripts

em2rp/scratch/test_api.dart

@@ -0,0 +1,45 @@
+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);
+  }
+}