using AsbCloudApp.Services;
using Microsoft.Extensions.Hosting;
using System.Threading;
using System.Threading.Tasks;

namespace AsbCloudInfrastructure.Services
{
    public class BackgroundWorkerService : BackgroundService
    {
        private readonly IBackgroundQueue tasksQueue;

        public BackgroundWorkerService(IBackgroundQueue tasksQueue)
        {
            this.tasksQueue = tasksQueue;
        }

        protected override async Task ExecuteAsync(CancellationToken token)
        {
            while (!token.IsCancellationRequested)
            {
                try
                {
                    if (tasksQueue.TryDequeue(out var item))
                        await Task.Run(() => item.action(item.id), token).ConfigureAwait(false);
                    else
                        await Task.Delay(100, token).ConfigureAwait(false);
                }
                catch
                {
                    //logger ?
                }
            }
        }

        public override async Task StopAsync(CancellationToken token)
        {
            await base.StopAsync(token).ConfigureAwait(false);
        }
    }
}