using System.Collections.Generic;
using System.Threading;
using System.Threading.Channels;
using System.Threading.Tasks;
using ErsatzTV.Core;
using ErsatzTV.Core.Domain;
using ErsatzTV.Core.Interfaces.Repositories;
using LanguageExt;
using MediatR;

namespace ErsatzTV.Application.Emby.Commands
{
    public class SynchronizeEmbyMediaSourcesHandler : IRequestHandler<SynchronizeEmbyMediaSources,
        Either<BaseError, List<EmbyMediaSource>>>
    {
        private readonly ChannelWriter<IEmbyBackgroundServiceRequest> _channel;
        private readonly IMediaSourceRepository _mediaSourceRepository;

        public SynchronizeEmbyMediaSourcesHandler(
            IMediaSourceRepository mediaSourceRepository,
            ChannelWriter<IEmbyBackgroundServiceRequest> channel)
        {
            _mediaSourceRepository = mediaSourceRepository;
            _channel = channel;
        }

        public async Task<Either<BaseError, List<EmbyMediaSource>>> Handle(
            SynchronizeEmbyMediaSources request,
            CancellationToken cancellationToken)
        {
            List<EmbyMediaSource> mediaSources = await _mediaSourceRepository.GetAllEmby();
            foreach (EmbyMediaSource mediaSource in mediaSources)
            {
                // await _channel.WriteAsync(new SynchronizeEmbyAdminUserId(mediaSource.Id), cancellationToken);
                await _channel.WriteAsync(new SynchronizeEmbyLibraries(mediaSource.Id), cancellationToken);
            }

            return mediaSources;
        }
    }
}