using Hutopy.Infrastructure.YouTube;
using Hutopy.Modules.Creators.Data;

namespace Hutopy.Modules.Creators.Features;

[PublicAPI]
public record ChangePresentationInfosRequest(
    Guid CreatorId,
    string Description,
    string? VideoUrl);

[PublicAPI]
public sealed class ChangePresentationInfosRequestValidator : Validator<ChangePresentationInfosRequest>
{
    public ChangePresentationInfosRequestValidator()
    {
        RuleFor(x => x.CreatorId)
            .NotEmpty()
            .WithMessage("Creator ID is required");

        RuleFor(x => x.Description)
            .NotEmpty()
            .WithMessage("Description is required")
            .MaximumLength(2000)
            .WithMessage("Description cannot exceed 2000 characters");

        RuleFor(x => x.VideoUrl)
            .Must(url => url == null || YouTubeUrlHelper.IsValidYouTubeUrlOrId(url))
            .WithMessage("Invalid YouTube URL or video ID format");
    }
}

[PublicAPI]
public class ChangePresentationInfosHandler(
    CreatorsDbContext context)
    : Endpoint<ChangePresentationInfosRequest>
{
    public override void Configure()
    {
        Post("/api/creators/{CreatorId}/presentation-infos");
        Options(o => o.WithTags("Creators"));
    }

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

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

        // Update the presentation info with the new values
        creator.Presentation.Description = request.Description.Trim();
        creator.Presentation.VideoUrl = request.VideoUrl != null
            ? YouTubeUrlHelper.ExtractVideoId(request.VideoUrl.Trim())
            : null;

        await context.SaveChangesAsync(ct);

        await SendOkAsync(ct);
    }
}