using EgwCoreLib.Lux.Data.Services;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace EgwCoreLib.Lux.Data.Services
{
    public class CleanupService : BackgroundService
    {
        #region Public Constructors

        /// <summary>
        /// Init classe con il servizio di gestione RUID
        /// </summary>
        /// <param name="crService"></param>
        public CleanupService(IConfiguration config, CalcRuidService crService)
        {
            _config = config;
            try
            {
                reqPeriodMinute = _config.GetValue<int>("ServerConf:CleanupPeriodMinutes");
            }
            catch
            {
                reqPeriodMinute = 60;
            }
            _calcRuidService = crService;
        }

        #endregion Public Constructors

        #region Protected Methods

        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            while (!stoppingToken.IsCancellationRequested)
            {
                var combos = await _calcRuidService.GetCombinationsAsync();

                foreach (var (env, tipo) in combos)
                    await _calcRuidService.CleanupOldRequestsAsync(env, tipo);

                // attesa tra le esecuzioni
                await Task.Delay(TimeSpan.FromMinutes(reqPeriodMinute), stoppingToken);
            }
        }

        #endregion Protected Methods

        #region Private Fields

        private readonly CalcRuidService _calcRuidService;
        private IConfiguration _config;
        private int reqPeriodMinute = 60;

        #endregion Private Fields
    }
}