using Hutopy.Infrastructure.BlobStorage.Contracts;
using Hutopy.Modules.Creators.Data;

namespace Hutopy.Modules.Creators.Features;

[PublicAPI]
public static class ChangeBanner
{
    public record Request(
        Guid CreatorId,
        IFormFile File);

    public record Response(
        string BlobUrl);

    public class Handler(
        CreatorsDbContext context,
        IBlobStorage blobStorage)
        : Endpoint<Request, Response>
    {
        public override void Configure()
        {
            Post("/api/creators/{CreatorId}/banner");
            Options(o => o.WithTags("Creators"));
            AllowFileUploads();
        }

        public override async Task HandleAsync(
            Request request,
            CancellationToken ct)
        {
            Creator? creator = await context
                .Creators
                .SingleOrDefaultAsync(
                    c => c.Id == request.CreatorId,
                    ct);

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

            string blobUrl = await blobStorage.UploadFileAsync(
                ContainerNames.Creators,
                $"{request.CreatorId}/{SubDirectoryNames.Profile}/{CommonFileNames.BannerPicture}",
                request.File.OpenReadStream(),
                request.File.ContentType,
                ct);

            creator.BannerUrl = $"{blobUrl}?t={DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()}";

            await context.SaveChangesAsync(ct);

            await SendOkAsync(
                new Response(blobUrl),
                ct);
        }
    }
}