FrontOffice/src/FrontOffice.Main/Shared/MainLayout.razor.cs

using Blazored.LocalStorage;
using FrontOffice.Main.Utilities;
using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
using MudBlazor;

namespace FrontOffice.Main.Shared;
public partial class MainLayout
{
    private const string TokenStorageKey = "auth:token";

    private MudThemeProvider _mudThemeProvider;
    private bool _isDark;
    private bool _drawerOpen;
    private bool _isAuthenticated;
    private string? _email;

    [Inject] private ILocalStorageService LocalStorage { get; set; } = default!;

    private void ToggleTheme() => _isDark = !_isDark;
    private void ToggleDrawer() => _drawerOpen = !_drawerOpen;
    private async void Back()
    {
        await JSRuntime.InvokeVoidAsync("history.back");
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            await JSRuntime.InvokeVoidAsync("changeNavBgOnBodyScroll", "top", null, 1);
            await CheckAuthStatus();
            StateHasChanged();
        }
    }

    private async Task CheckAuthStatus()
    {
        var token = await LocalStorage.GetItemAsync<string>(TokenStorageKey);
        _isAuthenticated = !string.IsNullOrWhiteSpace(token);
    }

    private async Task OpenAuthDialog()
    {
        var dialog = await DialogService.ShowAsync<AuthDialog>("ورود به حساب کاربری");
        var result = await dialog.Result;

        if (!result.Canceled)
        {
            await CheckAuthStatus();
            StateHasChanged();
        }
    }

    private void NavigateToProfile()
    {
        Navigation.NavigateTo(RouteConstants.Profile.Index);
    }
}