@page "/account/login"

@using Microsoft.AspNetCore.Components.Authorization
@using Microsoft.AspNetCore.WebUtilities

@inject NavigationManager NavigationManager
@inject Microsoft.AspNetCore.Antiforgery.IAntiforgery Antiforgery
@inject IHttpContextAccessor HttpContextAccessor


<form method="post" action="/auth/login">
    <!-- Hidden Fields -->
    <input type="hidden" name="ReturnUrl" value="@_returnUrl" />
    <input type="hidden" name="__RequestVerificationToken" value="@_antiToken" />

    <MudPaper Class="pa-6" Elevation="4" MaxWidth="400px">
        @if (_registered)
        {
            <MudAlert Severity="Severity.Success" Class="mb-3">Registrierung erfolgreich! Bitte anmelden.</MudAlert>
        }
        @if (!string.IsNullOrWhiteSpace(_error))
        {
            <MudAlert Severity="Severity.Error" Class="mb-3">@_error</MudAlert>
        }

        <MudText Typo="Typo.h5" Class="mb-4">
            Anmeldung
        </MudText>

        <MudTextField T="string"
            Name="Email"
            Label="E-Mail"
            Variant="Variant.Outlined"
            Required="true"
            InputType="InputType.Email"
            AutoComplete="username"
            Class="mb-3" />

        <MudTextField T="string"
            Name="Password"
            Label="Passwort"
            Variant="Variant.Outlined"
            Required="true"
            InputType="InputType.Password"
            AutoComplete="current-password"
            Class="mb-3" />

        <MudTextField T="string"
            Name="ClubName"
            Label="Club"
            Variant="Variant.Outlined"
            Required="true"
            Placeholder="Clubname"
            Class="mb-3" />

        <MudCheckBox T="bool"
            Name="RememberMe"
            Label="Angemeldet bleiben"
            Value="true"
            Class="mb-4" />

        <MudButton
            ButtonType="ButtonType.Submit"
            Variant="Variant.Filled"
            Color="Color.Primary"
            FullWidth="true"
            Class="mb-3">
            Anmelden
        </MudButton>

        <MudStack Row="true" Justify="Justify.SpaceBetween" Class="mt-2">
            <MudLink Href="/account/register" Typo="Typo.body2">
                Noch kein Konto? Registrieren
            </MudLink>
            <MudLink Href="/account/forgot-password" Typo="Typo.body2">
                Passwort vergessen?
            </MudLink>
        </MudStack>

    </MudPaper>
</form>


@code {
    private string _returnUrl = "/";
    private string? _error;
    private string _antiToken = "";
    private bool _registered;

    protected override void OnInitialized()
    {
        var uri = NavigationManager.ToAbsoluteUri(NavigationManager.Uri);
        var query = QueryHelpers.ParseQuery(uri.Query);

        if (query.TryGetValue("returnUrl", out var ru)) _returnUrl = ru!;
        if (query.TryGetValue("error", out var err))
        {
            _error = "Login fehlgeschlagen";
        }
        if (query.TryGetValue("registered", out _))
        {
            _registered = true;
        }

        // Antiforgery Token generieren (klassischer MVC Token)
        var http = HttpContextAccessor.HttpContext!;
        var tokens = Antiforgery.GetAndStoreTokens(http);
        _antiToken = tokens.RequestToken!;
    }

}