using Mediator;
using Musify.Application.Configuration;
using Musify.Application.Contracts;
using Musify.Application.Pictures;

namespace Musify.Api.Endpoints
{
    internal static class CoverEndpoint
    {
        public static async Task<IResult> Stream(
            IMediator mediator,
            IStorageService storageService,
            HttpResponse response,
            CoverOwner owner,
            Guid id,
            string size,
            CancellationToken cancellationToken)
        {
            var result = await mediator.Send(new GetCoverQuery(owner, id, PictureSizeParser.Parse(size)), cancellationToken);
            if (result.IsError)
                return Results.NotFound();

            var location = result.Value;
            var stream = await storageService.GetFileAsync(location.Bucket, location.Key, cancellationToken);
            if (stream == null)
                return Results.NotFound();

            response.Headers.CacheControl = "public, max-age=31536000, immutable";
            return Results.Stream(stream, location.ContentType);
        }
    }
}