ANTOOZA-BACKEND/Application/Features/Api/DonationRemote/SkipCurrent/Handler.cs

using Application.Abstractions.Data;
using Application.Abstractions.Messaging;
using Domain.Entities.Donations.ValueObject;
using Microsoft.EntityFrameworkCore;
using SharedKernel.Results;

namespace Application.Features.Api.DonationRemote.SkipCurrent;

internal sealed class Handler(IAppDbContext db) : ICommandHandler<Command, Result<Response>>
{
    public async Task<Result<Response>> Handle(Command request, CancellationToken ct)
    {
        var channelID = await db.Channel.AsNoTracking().Where(c => c.WidgetToken == request.WidgetToken).Select(c => c.ID).FirstOrDefaultAsync(ct);

        if (channelID == 0)
        {
            return new Response(null);
        }

        var playing = await db.DonationAlert.Where(a => a.Donation!.ChannelID == channelID && a.Status == AlertStatus.Playing).FirstOrDefaultAsync(ct);
        if (playing is null)
        {
            return new Response(null);
        }

        playing.MarkSkipped();
        await db.SaveChangesAsync(ct);

        return new Response(playing.ID);
    }
}