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

em2rp/lib/utils/polyline_utils.dart

@@ -15,8 +15,13 @@ List<LatLng> safeDecodePolyline(String encoded) {
         result |= (b & 0x1f) << shift;
         shift += 5;
       } while (b >= 0x20);
-      int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
+      
+      // Dart Web bitwise operations (~ and >>) can cause 32-bit unsigned wrap-around
+      // Using arithmetic avoids the issue where lat becomes 42995.xxxx (offset by 2^32)
+      int dlat = (result & 1) != 0 ? -((result >> 1) + 1) : (result >> 1);
       lat += dlat;
+      // Correction manuelle au cas où un wrap unsigned 32-bit s'est produit
+      if (lat > 2147483647) lat -= 4294967296;
 
       shift = 0;
       result = 0;
@@ -26,15 +31,23 @@ List<LatLng> safeDecodePolyline(String encoded) {
         result |= (b & 0x1f) << shift;
         shift += 5;
       } while (b >= 0x20);
-      int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
+      
+      int dlng = (result & 1) != 0 ? -((result >> 1) + 1) : (result >> 1);
       lng += dlng;
+      if (lng > 2147483647) lng -= 4294967296;
+
+      double finalLat = lat / 1e5;
+      double finalLng = lng / 1e5;
 
-      double finalLat = (lat / 1e5).clamp(-90.0, 90.0);
-      double finalLng = (lng / 1e5).clamp(-180.0, 180.0);
       poly.add(LatLng(finalLat, finalLng));
     }
+
     return poly;
   } catch (e) {
+    // ignore: avoid_print
+    print('[POLYLINE] Erreur décodage: $e');
     return [];
   }
 }
+
+

em2rp/lib/views/widgets/common/route_map_widget.dart

@@ -17,7 +17,15 @@ class RouteMapWidget extends StatelessWidget {
   });
 
   List<LatLng> _decode(String encoded) {
-    return safeDecodePolyline(encoded);
+    final pts = safeDecodePolyline(encoded);
+    // DEBUG: afficher dans la console du navigateur
+    // ignore: avoid_print
+    print('[MAP DEBUG] encoded length=${encoded.length}, decoded ${pts.length} points');
+    if (pts.isNotEmpty) {
+      // ignore: avoid_print
+      print('[MAP DEBUG] first=${pts.first.latitude},${pts.first.longitude} last=${pts.last.latitude},${pts.last.longitude}');
+    }
+    return pts;
   }
 
   LatLngBounds? _computeBounds(List<List<LatLng>> allPoints) {

em2rp/lib/views/widgets/inputs/address_autocomplete_field.dart

@@ -92,15 +92,9 @@ class _AddressAutocompleteFieldState extends State<AddressAutocompleteField> {
                 separatorBuilder: (_, __) =>
                     const Divider(height: 1, indent: 16),
                 itemBuilder: (ctx, i) {
-                  return ListTile(
-                    dense: true,
-                    leading: const Icon(Icons.location_on_outlined, size: 18),
-                    title: Text(
-                      _suggestions[i],
-                      style: const TextStyle(fontSize: 13),
-                      overflow: TextOverflow.ellipsis,
-                    ),
-                    onTap: () {
+                  return GestureDetector(
+                    behavior: HitTestBehavior.opaque,
+                    onPanDown: (_) {
                       widget.controller.text = _suggestions[i];
                       widget.controller.selection = TextSelection.fromPosition(
                         TextPosition(offset: _suggestions[i].length),
@@ -109,6 +103,15 @@ class _AddressAutocompleteFieldState extends State<AddressAutocompleteField> {
                       _removeOverlay();
                       _focusNode.unfocus();
                     },
+                    child: ListTile(
+                      dense: true,
+                      leading: const Icon(Icons.location_on_outlined, size: 18),
+                      title: Text(
+                        _suggestions[i],
+                        style: const TextStyle(fontSize: 13),
+                        overflow: TextOverflow.ellipsis,
+                      ),
+                    ),
                   );
                 },
               ),