@using MP.Stats.Components
@using System.Security.Claims
@using Microsoft.AspNetCore.Components.Authorization
@using MP.Stats.Data

@inject MessageService AppMessages
@inject AuthenticationStateProvider AuthenticationStateProvider

<div class="row pt-3">
    <div class="col-3">
        <i class="fas fa-user-alt"></i> <b>@userName</b>
    </div>
    <div class="col-6 text-center h4">
        <span class="@PageIcon" aria-hidden="true"></span> @PageName
    </div>
    <div class="col-3 text-end">
        @if (ShowSearch)
        {
            <SearchMod></SearchMod>
        }
    </div>
</div>

@code {

    [CascadingParameter(Name = "ShowSearch")]
    private bool ShowSearch { get; set; }

    private string userName = "";

    private string PageName { get; set; }
    private string PageIcon { get; set; }

    protected override async Task OnInitializedAsync()
    {
        await forceReload();
    }

    protected override void OnInitialized()
    {
        AppMessages.EA_PageUpdated += OnPageUpdate;
    }
    public void OnPageUpdate()
    {
        PageName = AppMessages.PageName;
        PageIcon = AppMessages.PageIcon;
        InvokeAsync(() =>
        {
            StateHasChanged();
        });
    }

    public void Dispose()
    {
        AppMessages.EA_PageUpdated -= OnPageUpdate;
    }

    private async Task forceReload()
    {

        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
        var user = authState.User;

        if (user.Identity.IsAuthenticated)
        {
            userName = $"{user.Identity.Name}";
        }
        else
        {
            userName = "N.A.";
        }
    }
}

@*  // Vedere anche:
    // https://docs.microsoft.com/en-us/aspnet/core/blazor/security/?view=aspnetcore-5.0#:~:text=Blazor%20uses%20the%20existing%20ASP.NET%20Core%20authentication%20mechanisms,all%20client-side%20code%20can%20be%20modified%20by%20users
    // https://docs.microsoft.com/en-us/aspnet/core/blazor/security/?view=aspnetcore-5.0*@