social-media/backend/src/Web/Features/Users/Handlers/GetCurrentUserProfilePicture.cs

using Hutopy.Web.Common.BlobStorage;
using Hutopy.Web.Features.Users.Data;

namespace Hutopy.Web.Features.Users.Handlers;

[PublicAPI]
public class GetCurrentUserPortraitHandler(
    IdentityService identityService,
    AzureBlobStorage blobStorage
)
    : EndpointWithoutRequest<Stream>
{
    public override void Configure()
    {
        Get("/api/users/portrait");
        Options(o => o.WithTags("Users"));
    }

    public override async Task HandleAsync(
        CancellationToken cancellationToken)
    {
        var identityUser = await identityService.GetCurrentUserAsync();

        if (identityUser is null)
        {
            await SendNotFoundAsync(cancellationToken);
            return;
        }

        var stream = await blobStorage.DownloadFileAsync(
            ContainerNames.Users,
            $"{identityUser.Id.ToString()}/{SubDirectoryNames.Profile}/{CommonFileNames.ProfilePicture}",
            cancellationToken);

        await SendOkAsync(stream, cancellationToken);
    }
}