@page "/"
@page "/Gallery"
@inject IDbContextFactory<HBContext> dbFactory
@inject ITagService tagService
@inject ISearchService searchService
@inject IUserService userService

<PageTitle>@(Query is null ? "Gallery" : "Search Results")</PageTitle>

<link rel="stylesheet" href="@(nameof(HyperBooru)).styles.css"/>

@foreach(var media in Media) {
    <a href="/ViewMedia?m=@(media.Guid)">
        <img src="/media/thumb/@(media.Guid)?h=200" />
    </a>
}

@code {
    [Parameter]
    [SupplyParameterFromQuery(Name = "q")]
    public string? Query { get; set; }

    [Parameter]
    [SupplyParameterFromQuery]
    public bool Ingest { get; set; } = false;

    private Media[] Media;

    protected override void OnInitialized() =>
        userService.ShowNsfwChanged += ShowNsfwChanged;

    protected override void OnParametersSet() => LoadMedia();

    private void LoadMedia() {
        using var db = dbFactory.CreateDbContext();

        IEnumerable<Media> media = db.Media
            .Include(m => m.Tags)
            .OrderByDescending(m => m.ObjectId)
            .ToArray();

        if(Query is not null)
            media = searchService.Search(Query)
                .OrderByDescending(m => m.ObjectId);

        if(Ingest)
            media = media
                .AsEnumerable()
                .Where(m => m.IsIngest);

        // Filter both NSFW AND ingest images if we're not showing NSFW
        if(!userService.ShowNsfw) {
            var nsfwTags = tagService.TagsThatImply(HBContext.NsfwTag)
                .Select(td => td.ObjectId)
                .ToArray();
            media = media
                .AsEnumerable()
                .Where(m => !m.Tags.Select(t => t.TagDefinitionId).Intersect(nsfwTags).Any())
                .Where(m => !m.IsIngest);
        }

        Media = media.ToArray();
    }

    private async void ShowNsfwChanged(object? sender, bool showNsfw) {
        await InvokeAsync(() => {
            LoadMedia();
            StateHasChanged();
        });
    }
}