@page "/now"
@using Selector.SignalR;
@implements IDisposable

<h1>Now</h1>

@*@if (nowCache?.LastPlaying?.Track is not null)
{
    <p role="status">@nowCache.LastPlaying.Track.Name</p>
}*@

<NowPlayingCard Track="@nowCache.LastPlaying?.Track" Episode="@nowCache.LastPlaying?.Episode" />
<PlayCountCard Track="@nowCache.LastPlaying?.Track" Count="@nowCache.LastPlayCount" Username="@nowCache.LastPlayCount?.Username" />

<div class="v-space"></div>

@code {
    [Inject]
    private NowHubCache nowCache { get; set; }

    protected async override Task OnInitializedAsync()
    {
        nowCache.NewNowPlaying += OnNewPlaying;
        nowCache.NewCard += OnNewCard;
        nowCache.NewPlayCount += OnNewPlayCount;
        nowCache.NewAudioFeature += OnNewAudioFeature;
    }

    private void OnNewPlaying(object sender, EventArgs args)
    {
        Update();
    }

    private void OnNewCard(object sender, EventArgs args)
    {
        Update();
    }

    private void OnNewPlayCount(object sender, EventArgs args)
    {
        Update();
    }

    private void OnNewAudioFeature(object sender, EventArgs args)
    {
        Update();
    }

    public void Update()
    {
        Application.Current.Dispatcher.Dispatch(() =>
        {
            StateHasChanged();
        });
    }

    public void Dispose()
    {
        nowCache.NewNowPlaying -= OnNewPlaying;
        nowCache.NewCard -= OnNewCard;
        nowCache.NewPlayCount -= OnNewPlayCount;
        nowCache.NewAudioFeature -= OnNewAudioFeature;
    }
}