@page "/login"
@using System.Diagnostics.CodeAnalysis
@using Iceshrimp.Frontend.Core.Miscellaneous
@using Iceshrimp.Frontend.Core.Schemas
@using Iceshrimp.Frontend.Core.Services
@using Iceshrimp.Frontend.Localization
@using Iceshrimp.Shared.Schemas.Web
@using Microsoft.Extensions.Localization
@inject ApiService        Api
@inject SessionService    SessionService
@inject NavigationManager Navigation
@inject IStringLocalizer<Localization> Loc;
@layout LoginLayout
<div class="body">
    <span><h3>Login</h3></span>
    <div class="login-form">
        <input placeholder="@Loc["Username"]" required="required"
            @bind="@Username"/>
        <input type="password" placeholder="@Loc["Password"]" required="required"
                @bind="@Password"/>
        <button class="button" @onclick="Submit" disabled="@Loading">@Loc["Login"]</button>
    </div>

@if (Loading)
{
    <span>Loading!</span>
}
@if (Failure)
{
    <span>Authentication Failed</span>
}

<span><p>A login page is being constructed here.</p></span>

</div>
@code {
    [SupplyParameterFromQuery(Name = "rd")]
    [SuppressMessage("ReSharper", "UnusedAutoPropertyAccessor.Local")]
    private string? Redirect { get; set; }
    
    private string? Password { get; set; }
    private string? Username { get; set; }
    private bool    Loading  { get; set; }
    private bool    Failure  { get; set; }

    private async void Submit()
    {
        Loading = true;
        try
        {
            if (Username == null || Password == null)
            {
                Loading = false;
                Failure = true;
                StateHasChanged(); // Manually triggering a state update, else component will not re-render.
                return;
            }

            var res = await Api.Auth.Login(new AuthRequest { Username = Username, Password = Password });
            switch (res.Status)
            {
                case AuthStatusEnum.Authenticated:
                    SessionService.AddUser(new StoredUser
                    { // Token nor user will ever be null on an authenticated response
                        Id              = res.User!.Id,
                        Username        = res.User.Username,
                        DisplayName     = res.User.DisplayName,
                        AvatarUrl       = res.User.AvatarUrl,
                        BannerUrl       = res.User.BannerUrl,
                        InstanceName    = res.User.InstanceName,
                        InstanceIconUrl = res.User.InstanceIconUrl,
                        Token           = res.Token!,
                        Host            = res.User.Host,
                        IsAdmin         = res.IsAdmin ?? false,
                        Emojis          = res.User.Emojis,
                        MovedTo         = res.User.MovedTo
                    });
                    SessionService.SetSession(res.User.Id);
                    Navigation.NavigateTo(Uri.TryCreate(Redirect, UriKind.Relative, out _) ? Redirect : "/");
                    break;
                case AuthStatusEnum.Guest:
                    Failure = true;
                    Loading = false;
                    break;
                case AuthStatusEnum.TwoFactor:
                    //FixMe: Implement Two Factor
                    break;
            }
        }
        catch (ApiException)
        {
            Loading = false;
            Failure = false;
            StateHasChanged(); // Manually triggering a state update, else component will not re-render.
        }
    }
}