Add location permissions and implement real-time location updates on the map

lib/components/map/map_content.dart

@@ -1,5 +1,8 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:google_maps_flutter/google_maps_flutter.dart';
+import 'package:location/location.dart';
 
 class MapContent extends StatefulWidget {
   const MapContent({super.key});
@@ -9,7 +12,18 @@ class MapContent extends StatefulWidget {
 }
 
 class _MapContentState extends State<MapContent> {
-  static LatLng _pGooglePlex = LatLng(50.64864814740268, 3.7224066213297293);
+  Location locationController = Location();
+
+  final Completer<GoogleMapController> _mapController =
+      Completer<GoogleMapController>();
+
+  LatLng? currentPosition;
+
+  @override
+  void initState() {
+    super.initState();
+    getLocationUpdate();
+  }
 
   @override
   Widget build(BuildContext context) {
@@ -21,7 +35,7 @@ class _MapContentState extends State<MapContent> {
             children: [
               TextField(
                 decoration: InputDecoration(
-                  hintText: 'Rechercher un lieu',
+                  hintText: 'Rechercher un lieu...',
                   prefixIcon: Icon(Icons.search),
                   border: OutlineInputBorder(
                     borderRadius: BorderRadius.circular(8.0),
@@ -29,25 +43,91 @@ class _MapContentState extends State<MapContent> {
                 ),
               ),
               SizedBox(height: 8.0),
-              Expanded(
-                child: GoogleMap(
-                  initialCameraPosition: CameraPosition(
-                    target: _pGooglePlex,
-                    zoom: 14.4746,
-                  ),
-                  markers: {
-                    Marker(
-                      markerId: MarkerId('googlePlex'),
-                      position: _pGooglePlex,
-                      infoWindow: InfoWindow(title: 'Google Plex'),
+              SizedBox(
+                width: double.infinity,
+                height: 50,
+                child: ElevatedButton(
+                  style: ElevatedButton.styleFrom(
+                    backgroundColor: Theme.of(context).colorScheme.primary,
+                    foregroundColor: Colors.white,
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(8.0),
                     ),
+                  ),
+                  onPressed: () {
+                    // TODO : Logique de recherche à implémenter
                   },
+                  child: Text('Chercher'),
                 ),
               ),
+              SizedBox(height: 8.0),
+              Expanded(
+                child: currentPosition == null
+                    ? const Center(child: Text("Chargement..."))
+                    : GoogleMap(
+                        onMapCreated: (GoogleMapController controller) =>
+                            _mapController.complete(controller),
+                        initialCameraPosition: CameraPosition(
+                          target: currentPosition!,
+                          zoom: 14.4746,
+                        ),
+                        markers: {
+                          Marker(
+                            markerId: MarkerId('currentLocation'),
+                            position: currentPosition!,
+                            icon: BitmapDescriptor.defaultMarkerWithHue(
+                              BitmapDescriptor.hueAzure,
+                            ),
+                          ),
+                        },
+                      ),
+              ),
             ],
           ),
         ),
       ),
     );
   }
+
+  Future<void> _cameraToPosition(LatLng pos) async {
+    final GoogleMapController controller = await _mapController.future;
+    CameraPosition newCameraPosition = CameraPosition(target: pos, zoom: 13);
+    await controller.animateCamera(
+      CameraUpdate.newCameraPosition(newCameraPosition),
+    );
+  }
+
+  Future<void> getLocationUpdate() async {
+    bool serviceEnabled;
+    PermissionStatus permissionGranted;
+
+    serviceEnabled = await locationController.serviceEnabled();
+    if (serviceEnabled) {
+      serviceEnabled = await locationController.requestService();
+    } else {
+      return;
+    }
+
+    permissionGranted = await locationController.hasPermission();
+    if (permissionGranted == PermissionStatus.denied) {
+      permissionGranted = await locationController.requestPermission();
+      if (permissionGranted != PermissionStatus.granted) {
+        return;
+      }
+    }
+
+    locationController.onLocationChanged.listen((LocationData currentLocation) {
+      if (currentLocation.latitude != null &&
+          currentLocation.longitude != null) {
+        setState(() {
+          currentPosition = LatLng(
+            currentLocation.latitude!,
+            currentLocation.longitude!,
+          );
+          _cameraToPosition(currentPosition!);
+          print(currentPosition);
+        });
+      }
+    });
+  }
 }