using EgwCoreLib.Lux.Data.Services;

namespace Lux.API.Services
{
    public class RedisSubscriberService : BackgroundService
    {

#if false
        public RedisSubscriberService(IConfiguration config, RedisSubscriptionManager subManager, ExternalMessageProcessor processor)
        {
            _subManager = subManager;
            _processor = processor;
            _config = config;
            chSub = _config.GetValue<string>("ServerConf:ChannelSub") ?? "";
        }


        protected override Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _subManager.Subscribe(chSub, async (ch, msg) =>
            {
                await _processor.HandleResultMessageAsync($"{ch}", $"{msg}");
            });

            return Task.CompletedTask;
        }


        private readonly IConfiguration _config;
        private readonly ExternalMessageProcessor _processor;
        private readonly RedisSubscriptionManager _subManager;
        private readonly string chSub = "";
#endif


        private readonly IConfiguration _config;
        private readonly RedisSubscriptionManager _subManager;
        private readonly IServiceScopeFactory _scopeFactory;
        private readonly string _channel;

        public RedisSubscriberService(
            IConfiguration config,
            RedisSubscriptionManager subManager,
            IServiceScopeFactory scopeFactory)
        {
            _config = config;
            _subManager = subManager;
            _scopeFactory = scopeFactory;

            _channel = _config.GetValue<string>("ServerConf:ChannelSub") ?? "";
        }

        protected override Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _subManager.Subscribe(_channel, async (ch, msg) =>
            {
                // Ogni messaggio → nuovo scope
                using var scope = _scopeFactory.CreateScope();

                var processor = scope.ServiceProvider.GetRequiredService<ExternalMessageProcessor>();

                await processor.HandleResultMessageAsync($"{ch}", $"{msg}");
            });

            return Task.CompletedTask;
        }
    }
}