ANTOOZA-BACKEND/Web.Api/Endpoints/Donation/RemoteSkip.cs

using Application.Abstractions.Hub;
using Infrastructure.Hubs;
using Web.Api.Common;
using MediatR;
using Microsoft.AspNetCore.SignalR;

namespace Web.Api.Endpoints.Donation;

/// <summary>리모콘 — 건너뛰기 (현재 재생 중 알림 즉시 종료 + 위젯/리모콘 broadcast)</summary>
internal sealed class RemoteSkip : IEndpoint
{
    public void MapEndpoint(IEndpointRouteBuilder app)
    {
        app.MapPost("api/donation/remote/skip/{widgetToken}", async (
            string widgetToken,
            ISender sender,
            IHubContext<DonationHub, IDonationHubClient> donationHub,
            CancellationToken ct
        ) => {
            var result = await sender.Send(new Application.Features.Api.DonationRemote.SkipCurrent.Command(widgetToken), ct);

            if (result.IsFailure)
            {
                return CustomResults.Problem(result);
            }

            // 위젯: 현재 알림 즉시 unmount + 다음 알림 진입. 리모콘: 행 상태를 skipped 로 갱신.
            await donationHub.Clients.Group(widgetToken).ReceiveSkip();

            if (result.Value.SkippedAlertID is int skippedID)
            {
                await donationHub.Clients.Group(widgetToken).ReceiveAlertStatusUpdate(new
                {
                    alertID = skippedID,
                    status = "skipped"
                });
            }

            return ApiResponse.Ok();
        })
        .WithTags("DonationRemote")
        .RequireAuthorization();
    }
}