using Hutopy.Infrastructure.Security;
using Hutopy.Modules.Contents.Data;

namespace Hutopy.Modules.Contents.Features;

[PublicAPI]
public record CreateAlbumRequest(
    Guid AlbumId,
    string Title,
    string? Description = null);

[PublicAPI]
public record CreateAlbumResponse(
    Guid AlbumId);

[PublicAPI]
public sealed class CreateAlbumRequestValidator : Validator<CreateAlbumRequest>
{
    public CreateAlbumRequestValidator()
    {
        RuleFor(x => x.AlbumId)
            .NotNull()
            .NotEmpty();

        RuleFor(x => x.Title)
            .NotNull()
            .NotEmpty()
            .MaximumLength(255);

        RuleFor(x => x.Description)
            .MaximumLength(1000);
    }
}

[PublicAPI]
public class CreateAlbumHandler(
    ContentsDbContext context)
    : Endpoint<CreateAlbumRequest, CreateAlbumResponse>
{
    public override void Configure()
    {
        Post("/api/albums");
        Options(o => o.WithTags("Albums"));
    }

    public override async Task HandleAsync(
        CreateAlbumRequest request,
        CancellationToken ct)
    {
        // Check if an album with the same ID already exists
        bool existingAlbum = await context
            .Albums
            .AnyAsync(a => a.Id == request.AlbumId, ct);

        if (existingAlbum)
        {
            await SendErrorsAsync(409, ct);
            return;
        }

        Album album = new() { Id = request.AlbumId, CreatedBy = User.GetUserId(), Title = request.Title };

        context.Albums.Add(album);
        await context.SaveChangesAsync(ct);

        await SendOkAsync(
            new CreateAlbumResponse(album.Id),
            ct);
    }
}