using Hutopy.Infrastructure.Security;
using Hutopy.Modules.Contents.Data;

namespace Hutopy.Modules.Contents.Features;

[PublicAPI]
public record RemovePhotoFromAlbumRequest(
    Guid AlbumId,
    Guid PhotoId);

[PublicAPI]
public sealed class RemovePhotoFromAlbumRequestValidator : Validator<RemovePhotoFromAlbumRequest>
{
    public RemovePhotoFromAlbumRequestValidator()
    {
        RuleFor(x => x.AlbumId)
            .NotNull()
            .NotEmpty();

        RuleFor(x => x.PhotoId)
            .NotNull()
            .NotEmpty();
    }
}

[PublicAPI]
public class RemovePhotoFromAlbumHandler(
    ContentsDbContext context)
    : Endpoint<RemovePhotoFromAlbumRequest>
{
    public override void Configure()
    {
        Delete("/api/albums/{AlbumId}/photos/{PhotoId}");
        Options(o => o.WithTags("Albums"));
    }

    public override async Task HandleAsync(
        RemovePhotoFromAlbumRequest request,
        CancellationToken ct)
    {
        Guid userId = User.GetUserId();

        Album? album = await context
            .Albums
            .Include(a => a.Photos)
            .SingleOrDefaultAsync(
                a => a.Id == request.AlbumId && a.CreatedBy == userId,
                ct);

        if (album is null)
        {
            await SendNotFoundAsync(ct);
            return;
        }

        AlbumPhoto? photo = album.Photos
            .SingleOrDefault(p => p.Id == request.PhotoId);

        if (photo is null)
        {
            await SendNotFoundAsync(ct);
            return;
        }

        // Soft delete the photo
        photo.DeletedBy = userId;
        photo.DeletedAt = DateTimeOffset.UtcNow;

        await context.SaveChangesAsync(ct);

        await SendNoContentAsync(ct);
    }
}