// Sync Users
final tempUsers = await fetchTempUsers();
for (var user in tempUsers) {
  // Create a new user in the API
  bool success = await apiService.signUpUser (
    user.username,
    user.firstName,
    user.lastName,
    user.email,
    user.phone ?? '',
    user.address ?? '',
    user.role,
    user.password,
  );

  if (success) {
    // Retrieve the user ID from the API using the email
    int? createdUser Id = await apiService.getUser Id(user.email); // Use your existing method

    if (createdUser Id != null) { // Check if the ID retrieval was successful
      // Use a temporary variable to hold the new user ID
      final updatedUser  = UserModel(
        userId: createdUser Id, // Set the new user ID here
        username: user.username,
        firstName: user.firstName,
        lastName: user.lastName,
        email: user.email,
        phone: user.phone,
        address: user.address,
        role: user.role,
        password: user.password,
      );

      await insertTempUser (updatedUser ); // Insert the user with the correct ID
      await deleteTempUser (user.email); // Delete from temp after successful sync
    } else {
      print('Failed to retrieve user ID for: ${user.email}');
    }
  } else {
    print('Failed to sync user: ${user.email}');
  }
}