using EgwProxy.DataLayer.DbModel;
using EgwProxy.MagMan.DTO;
using NLog;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static System.Data.Entity.Infrastructure.Design.Executor;

namespace EgwProxy.DataLayer.Controllers
{
    public class LogMachineController : IDisposable
    {
        #region Public Constructors

        /// <summary>
        /// Init classe
        /// </summary>
        /// <param name="connString"></param>
        public LogMachineController()
        {
        }

        #endregion Public Constructors

        #region Public Methods

        /// <summary>
        /// Helper conversione a LogMachineDTO
        /// </summary>
        /// <param name="currRec"></param>
        /// <returns></returns>
        public static LogMachineDTO ConvToItemDto(LogMachineModel currRec)
        {
            LogMachineDTO answ = new LogMachineDTO()
            {
                DtEvent = currRec.DtEvent,
                EvType = (MagMan.MachLogTypes)currRec.EvType,
                ProjCloudId = currRec.ProjCloudId,
                SupervId = currRec.SupervId,
                VarValue = currRec.VarValue
            };
            return answ;
        }

        public void Dispose()
        {
        }

        /// <summary>
        /// Recupero i dati in ordine crescente fino al num max indicato
        /// </summary>
        /// <param name="numMax"></param>
        /// <returns></returns>
        public List<LogMachineModel> GetUnsentAsc(int numMax)
        {
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                // retrieve
                return localDbCtx
                        .DbSetLogMac
                        .Where(x => (x.DtSent == null || x.DtSent < x.DtEvent) && x.ProjCloudId > 0)
                        .OrderBy(x => x.DtEvent)
                        .Take(numMax)
                        .ToList();
            }
        }

        /// <summary>
        /// Aggiorna i record indicati inserendo dataora corrente x DtSent
        /// </summary>
        /// <param name="rec2upd"></param>
        /// <returns></returns>
        public bool SetDtSent(List<LogMachineModel> rec2upd)
        {
            bool done = false;
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                DateTime adesso = DateTime.Now;
                foreach (var item in rec2upd)
                {
                    var currRec = localDbCtx
                        .DbSetLogMac
                        .Where(x => x.DtSent == null && x.LogDbId == item.LogDbId)
                        .FirstOrDefault();
                    if (currRec != null)
                    {
                        currRec.DtSent = adesso;
                    }

                    // indico modificato
                    localDbCtx.Entry(currRec).State = System.Data.Entity.EntityState.Modified;
                }
                // Salvataggio finale
                localDbCtx.SaveChanges();
            }

            return done;
        }

        /// <summary>
        /// Cerca di sistemare gli ID di Prod e ProjCloud mancanti
        /// </summary>
        /// <returns></returns>
        public bool TryFixProjCloudId()
        {
            // init vars
            bool fatto = false;
            int prodId = 0;
            // vado sul DB
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                // retrieve
                var list2proc = localDbCtx
                        .DbSetLogMac
                        .Where(x => x.ProjCloudId == 0 && ((int)x.EvType == 1 || (int)x.EvType == 2))
                        .OrderBy(x => x.DtEvent)
                        .ToList();
                // se ci sono...
                if (list2proc != null && list2proc.Count > 0)
                {
                    // recupero elenco PROD
                    List<ProdModel> prodList = localDbCtx
                                                .DbSetProd
                                                .AsNoTracking()
                                                .ToList();

                    foreach (var item in list2proc)
                    {
                        prodId = 0;
                        // cerco valore
                        string[] dataList = item.VarValue.Split(';');
                        if (dataList != null && dataList.Count() > 0)
                        {
                            int.TryParse(dataList[0], out prodId);
                            // se trovato
                            if (prodId > 0)
                            {
                                // salvo il valore prodId
                                item.ProdId = prodId;
                                // cerco il projCloudId in elenco
                                var projRec = prodList.Where(x => x.ProdId == prodId).FirstOrDefault();
                                if (projRec != null)
                                {
                                    item.ProjCloudId = projRec.ProjCloudId;
                                }
                                // indico modificato
                                localDbCtx.Entry(item).State = System.Data.Entity.EntityState.Modified;
                            }
                        }
                    }
                    // salvo
                    localDbCtx.SaveChanges();
                    // registro
                    fatto = true;
                }
            }
            // risultato
            return fatto;
        }

        #endregion Public Methods

        #region Private Fields

        /// <summary>
        /// Istanza logger
        /// </summary>
        private NLog.Logger Log = LogManager.GetCurrentClassLogger();

        #endregion Private Fields
    }
}