@page "/"
@using CodeHollow.FeedReader;
@using SharpRss.Models;
@using WebSharpRSS.Models;

@inject RssService _rssService;
@inject FeedStateContainer _stateContainer;

<MudGrid Spacing="3" Justify="Justify.FlexStart">
    @if (Feeds != null)
    {
        foreach (var feedItem in _items)
        {
            <MudItem>
                <MudCard>
                    <MudCardContent>
                        <MudText>@feedItem.Title</MudText>
                        <MudText Typo="Typo.body2">@feedItem.Description</MudText>
                        <MudText Typo="Typo.overline">@feedItem.PublishingDateString</MudText>
                    </MudCardContent>
                </MudCard>
            </MudItem>
        }
    }
</MudGrid>

@code {
    [Parameter]
    public HashSet<FeedModel>? Feeds { get; set; }

    private HashSet<FeedItem> _items = new HashSet<FeedItem>();
    protected override async void OnInitialized()
    {
        UpdateFeeds();
        _stateContainer.StateChanged += FeedsChanged;
    }
    private void FeedsChanged()
    {
        UpdateFeeds();
        InvokeAsync(StateHasChanged);
    }

    private void UpdateFeeds()
    {
        Feeds = _stateContainer.Feeds;
        if (Feeds == null) return;
        foreach (var feedmodel in Feeds)
        {
            _items = feedmodel.Base.Items.OrderBy(x => x.PublishingDate).ToHashSet();
        }
    }
}