using System.Collections.Concurrent;
using System.Threading;

namespace LCU.Shared.Collections.RepoApiLib.Hosted
{
    /**
   * Should be injected as a singleton. Can be used by a controller to queue something.
   */
    public class HostedTaskQueue : IHostedTaskQueue
    {
        private readonly BlockingCollection<TaskSettings> _tasks = new BlockingCollection<TaskSettings>();

        // This will not block.
        public void Enqueue(TaskSettings settings)
        {
            _tasks.Add(settings);
        }

        // This will block.
        public TaskSettings Dequeue(CancellationToken token)
        {
            return _tasks.Take(token);
        }

        public int GetCount()
        {
            return _tasks.Count;
        }

    }
}