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

namespace Hutopy.Modules.Creators.Features;

[PublicAPI]
public record ChangeLogoRequest(
    Guid CreatorId,
    IFormFile File);

[PublicAPI]
public record ChangeLogoResponse(
    string BlobUrl);

[PublicAPI]
public sealed class ChangeLogoRequestValidator : Validator<ChangeLogoRequest>
{
    public ChangeLogoRequestValidator()
    {
        RuleFor(x => x.CreatorId)
            .NotNull()
            .NotEmpty();

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

[PublicAPI]
public class ChangeLogoHandler(
    CreatorsDbContext context,
    IBlobStorage blobStorage)
    : Endpoint<ChangeLogoRequest>
{
    public override void Configure()
    {
        Post("/api/creators/{CreatorId}/logo");
        Options(o => o.WithTags("Creators"));
        AllowFileUploads();
    }

    public override async Task HandleAsync(
        ChangeLogoRequest 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.ProfilePicture}",
            request.File.OpenReadStream(),
            request.File.ContentType,
            ct);

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

        await context.SaveChangesAsync(ct);

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