using Hutopy.Infrastructure.Security;
using Hutopy.Modules.Creators.Contracts;
using Hutopy.Modules.Memberships.Data;

namespace Hutopy.Modules.Memberships.Handlers;

[PublicAPI]
public record struct GetActiveMembershipsResponse(
    Guid Id,
    Guid CreatorId,
    string CreatorName,
    string CreatorPortraitUrl,
    DateTimeOffset? StartDate,
    DateTimeOffset? EndDate);

[PublicAPI]
public class GetActiveMembershipsHandler(
    ICreatorLookup creatorLookup,
    MembershipsDbContext dbContext)
    : EndpointWithoutRequest<IEnumerable<GetActiveMembershipsResponse>>
{
    public override void Configure()
    {
        Get("/api/memberships/active");
        Options(o => o.WithTags("Memberships"));
    }

    public override async Task HandleAsync(
        CancellationToken ct)
    {
        List<Membership> subscriptions = await dbContext
            .Memberships
            .Where(subscription => subscription.UserId == User.GetUserId())
            .Where(subscription => subscription.State == MembershipState.Active)
            .ToListAsync(ct);

        GetActiveMembershipsResponse[] result = await Task.WhenAll(
            subscriptions.Select(async subscription =>
            {
                CreatorReference? creator = await creatorLookup.GetCreatorAsync(subscription.CreatorId, ct);

                return new GetActiveMembershipsResponse(
                    subscription.Id,
                    subscription.CreatorId,
                    creator?.Name ?? "Unknown Creator",
                    creator?.PortraitUrl ?? string.Empty,
                    subscription.StartDate,
                    subscription.EndDate);
            }));


        await SendOkAsync(result, ct);
    }
}