add logout button + logout function

covas_mobile/lib/classes/MyDrawer.dart

@@ -1,7 +1,75 @@
 import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:http/http.dart' as http;
+import 'dart:io';
+
 import 'alert.dart';
 
+import '../variable/globals.dart' as globals;
+
+import '../main.dart';
+
 class MyDrawer extends StatelessWidget with ShowAlertDialog {
+  Future<void> logout(BuildContext context) async {
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    var accessToken = prefs.getString("access_token") ?? "";
+
+    if (accessToken.isNotEmpty) {
+      var url = Uri.parse("${globals.api}/token");
+
+      try {
+        var response = await http.delete(url, headers: {
+          "Content-Type": "application/json",
+          HttpHeaders.cookieHeader: "access_token=${accessToken}"
+        });
+        print("Status code logout ${response.statusCode}");
+
+        if (response.statusCode == 200) {
+          await prefs.setString("access_token", ""); // Clear the token
+          Navigator.pushReplacement(
+              context, MaterialPageRoute(builder: (_) => LoginDemo()));
+        } else {
+          switch (response.statusCode) {
+            case 400:
+              print("Bad Request: Please check your input.");
+              showAlertDialog(
+                  context, "Bad Request", "Please check your input.");
+              break;
+            case 401:
+              print("Unauthorized: Invalid credentials.");
+              showAlertDialog(context, "Unauthorized", "Invalid credentials.");
+              break;
+            case 403:
+              print("Forbidden: You don't have permission.");
+              showAlertDialog(context, "Forbidden",
+                  "You don't have permission to access this.");
+              break;
+            case 404:
+              print("Not Found: The resource was not found.");
+              showAlertDialog(
+                  context, "Not Found", "The resource was not found.");
+              break;
+            case 500:
+              print("Server Error: Something went wrong on the server.");
+              showAlertDialog(context, "Server Error",
+                  "Something went wrong on the server.");
+              break;
+            default:
+              print("Unexpected Error: ${response.statusCode}");
+              showAlertDialog(context, "Error", "Unexpected Error occurred.");
+              break;
+          }
+        }
+      } catch (e) {
+        print("Error: $e");
+        showAlertDialog(
+            context, "Error", "An error occurred. Please try again.");
+      }
+    } else {
+      showAlertDialog(context, "Error", "Token invalide.");
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     return Drawer(
@@ -44,6 +112,14 @@ class MyDrawer extends StatelessWidget with ShowAlertDialog {
                   context, 'About', "Version 0.0.1"); // Close the drawer
             },
           ),
+          ListTile(
+            leading: Icon(Icons.logout),
+            title: Text('Log out'),
+            onTap: () async {
+              logout(context);
+// Close the drawer
+            },
+          ),
         ],
       ),
     );

covas_mobile/lib/pages/ListItemMenu.dart

@@ -15,7 +15,6 @@ import '../variable/globals.dart' as globals;
 import 'package:permission_handler/permission_handler.dart';
 import "Camera.dart";
 import 'package:camera/camera.dart';
-import 'package:textfield_tags/textfield_tags.dart';
 
 void main() {
   initializeDateFormatting("fr_FR", null).then((_) => runApp(const MyApp()));