using Microsoft.Extensions.Configuration;
using System;
using Microsoft.Extensions.Logging;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using NLog;
using Microsoft.Extensions.Caching.Distributed;
using Microsoft.Extensions.Caching.Memory;

namespace MP.Land.Data
{
    public class AppAuthService : IDisposable
    {
        #region Private Fields

        private static IConfiguration _configuration;

        private static ILogger<AppAuthService> _logger;

        private static List<MP.AppAuth.Models.Macchine> ElencoMacchine = new List<MP.AppAuth.Models.Macchine>();

        private static NLog.Logger Log = LogManager.GetCurrentClassLogger();

        private readonly IDistributedCache distributedCache;

        private readonly IMemoryCache memoryCache;

        /// <summary>
        /// Durata assoluta massima della cache
        /// </summary>
        private int chAbsExp = 15;

        /// <summary>
        /// Durata della cache in modalità inattiva (non acceduta) prima di venire rimossa
        /// NON estende oltre il tempo massimo di validità della cache (chAbsExp)
        /// </summary>
        private int chSliExp = 5;

        #endregion Private Fields

        #region Public Fields

        public static AppAuth.Controllers.AppAuthController dbController;

        #endregion Public Fields

        #region Public Constructors

        public AppAuthService(IConfiguration configuration, ILogger<AppAuthService> logger, IMemoryCache memoryCache, IDistributedCache distributedCache)
        {
            _logger = logger;
            _configuration = configuration;
            // conf cache
            this.memoryCache = memoryCache;
            this.distributedCache = distributedCache;
            // conf DB
            string connStr = _configuration.GetConnectionString("MP.Land");
            if (string.IsNullOrEmpty(connStr))
            {
                _logger.LogError("ConnString empty!");
            }
            else
            {
                dbController = new AppAuth.Controllers.AppAuthController(configuration);
                _logger.LogInformation("DbController OK");
            }
        }

        #endregion Public Constructors

        #region Private Properties

        private DistributedCacheEntryOptions cacheOpt
        {
            get
            {
                return new DistributedCacheEntryOptions().SetAbsoluteExpiration(DateTime.Now.AddMinutes(chAbsExp)).SetSlidingExpiration(TimeSpan.FromMinutes(chSliExp));
            }
        }

        private DistributedCacheEntryOptions cacheOptLong
        {
            get
            {
                return new DistributedCacheEntryOptions().SetAbsoluteExpiration(DateTime.Now.AddMinutes(chAbsExp * 10)).SetSlidingExpiration(TimeSpan.FromMinutes(chSliExp));
            }
        }

        #endregion Private Properties

        #region Public Methods

        public void Dispose()
        {
            throw new NotImplementedException();
        }

        #endregion Public Methods
    }
}