using System.Threading.Channels;
using Microsoft.Extensions.Logging;

namespace CompServ.Hub
{
    public class HubWorkerHolder(ILogger<HubWorkerHolder> logger)
    {
        internal readonly List<(string url, int ratio)> Workers = new();

        internal readonly Channel<string> Queue1 = Channel.CreateBounded<string>(1);

        public void RegisterWorker(string url, int ratio)
        {
            logger.LogInformation($"Register worker: {url} with ratio {ratio}");
            lock (Workers)
            {
                if (Workers.Any(p => p.url == url)) return;
                Workers.Add((url, ratio));
            }
        }

        public void UnRegisterWorker(string url)
        {
            logger.LogInformation($"Un Register worker: {url}");
            lock (Workers)
            {
                var found = Workers.FirstOrDefault(p => p.url == url);
                if (found != default) Workers.Remove(found);
            }
        }

        public async Task<string> GetWorkerAsync()
        {
            var url = await Queue1.Reader.ReadAsync();
            logger.LogInformation($"Assign worker: {url}");
            return url;
        }
    }
}