using EgtBEAMWALL.DataLayer.DatabaseModels;
using EgwProxy.MagMan.DTO;
using NLog;
using System;
using System.Collections.Generic;
using System.Linq;

namespace EgtBEAMWALL.DataLayer.Controllers
{
    /// <summary>
    /// Gestione Alias su DB (es: materiali da BTL e su DB)
    /// </summary>
    public class AliasController : IDisposable
    {
        #region Public Constructors

        public AliasController()
        {
        }

        #endregion Public Constructors

#if false
        /// <summary>
        /// Conversion of DB model class to base class
        /// </summary>
        /// <param name="coreMat"></param>
        /// <returns></returns>
        public static Core.AliasM ConvToCore(AliasModel dbRec)
        {
            Core.AliasM answ = new Core.AliasM(dbRec.ValueOriginal, dbRec.ValueAlias);
            return answ;
        }
#endif

        #region Public Methods

        /// <summary>
        /// Helper conversione a DTO
        /// </summary>
        /// <param name="currRec"></param>
        /// <returns></returns>
        public static AliasDTO ConvToDto(AliasModel currRec)
        {
            AliasDTO answ = new AliasDTO()
            {
                ValOrig = currRec.ValueOriginal,
                ValAlias = currRec.ValueAlias,
                IsActive = true
            };
            return answ;
        }

        /// <summary>
        /// Helper conversione da DTO
        /// </summary>
        /// <param name="currRec"></param>
        /// <param name="family"></param>
        /// <returns></returns>
        public static AliasModel ConvToModel(AliasDTO currRec, string family)
        {
            AliasModel answ = new AliasModel()
            {
                Family = family,
                ValueOriginal = currRec.ValOrig,
                ValueAlias = currRec.ValAlias
            };
            return answ;
        }

        /// <summary>
        /// Delete by key
        /// </summary>
        /// <param name="Family"></param>
        /// <param name="ValueOriginal"></param>
        /// <returns></returns>
        public bool DeleteByKey(string Family, string ValueOriginal)
        {
            bool done = false;
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                var items2del = localDbCtx
                                    .AliasList
                                    .Where(x => x.Family == Family && x.ValueOriginal == ValueOriginal);
                try
                {
                    // Add to database
                    localDbCtx.AliasList.RemoveRange(items2del);
                    // Commit changes
                    localDbCtx.SaveChanges();
                    done = true;
                }
                catch (Exception exc)
                {
                    Log.Error($"EXCEPTION on Alias.DeleteByKey: {Environment.NewLine}{exc}");
                }
            }
            return done;
        }

        public void Dispose()
        {
        }

        /// <summary>
        /// Ricerca record da chiave (=valore ALIAS)
        /// </summary>
        /// <param name="ValueOriginal">Valore ALIAS cercato</param>
        /// <param name="Family">Famiglia alias cercato (MatCode se non specificato)</param>
        /// <returns></returns>
        public AliasModel FindByDbId(string ValueOriginal, string Family = "MatCode")
        {
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                return localDbCtx
                        .AliasList
                        .Where(x => x.Family == Family && x.ValueOriginal.ToLower() == ValueOriginal.ToLower())
                        .SingleOrDefault();
            }
        }

        /// <summary>
        /// Elenco Alias x famiglia
        /// </summary>
        /// <param name="Family">se "" restituisce tutti</param>
        /// <returns></returns>
        public List<AliasModel> GetFilt(string Family)
        {
            // retrieve
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                return localDbCtx
                        .AliasList
                        .Where(x => x.Family == Family)
                        .OrderBy(x => x.ValueOriginal)
                        .ToList();
            }
        }

        /// <summary>
        /// Update or insert Alias record
        /// </summary>
        /// <param name="updItem"></param>
        /// <returns></returns>
        public bool Upsert(AliasModel updItem)
        {
            bool fatto = false;
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                try
                {
                    var item2update = localDbCtx
                                        .AliasList
                                        .Where(x => x.Family == updItem.Family && x.ValueOriginal == updItem.ValueOriginal)
                                        .SingleOrDefault();

                    if (item2update != null)
                    {
                        // update, vers 1...
                        localDbCtx.Entry(item2update).CurrentValues.SetValues(updItem);
                    }
                    else
                    {
                        localDbCtx.AliasList.Add(updItem);
                    }
                    // Commit changes
                    localDbCtx.SaveChanges();
                    fatto = true;
                }
                catch (Exception exc)
                {
                    Log.Error($"EXCEPTION on Alias.Upsert: {Environment.NewLine}{exc}");
                }
            }
            return fatto;
        }

        /// <summary>
        /// Update or insert Alias record list
        /// </summary>
        /// <param name="updList"></param>
        /// <returns></returns>
        public bool UpsertList(List<AliasModel> updList)
        {
            bool fatto = false;
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                try
                {
                    foreach (var updItem in updList)
                    {

                        var item2update = localDbCtx
                                            .AliasList
                                            .Where(x => x.Family == updItem.Family && x.ValueOriginal.ToLower() == updItem.ValueOriginal.ToLower())
                                            .SingleOrDefault();

                        if (item2update != null)
                        {
                            if (item2update.ValueAlias.ToLower() != updItem.ValueAlias.ToLower())
                            {
                                localDbCtx.Entry(item2update).CurrentValues.SetValues(updItem);
                            }
                        }
                        else
                        {
                            localDbCtx.AliasList.Add(updItem);
                        }
                    }
                    // Commit changes
                    localDbCtx.SaveChanges();
                    fatto = true;
                }
                catch (Exception exc)
                {
                    Log.Error($"EXCEPTION on Alias.UpsertList: {Environment.NewLine}{exc}");
                }
            }
            return fatto;
        }

        /// <summary>
        /// Eliminazione eventuali record Alias nella lista (se presenti)
        /// </summary>
        /// <param name="updList"></param>
        /// <returns></returns>
        public bool DeleteList(List<AliasModel> updList)
        {
            bool fatto = false;
            using (DatabaseContext localDbCtx = new DatabaseContext(DbConfig.CONNECTION_STRING))
            {
                try
                {
                    foreach (var updItem in updList)
                    {

                        var item2del = localDbCtx
                                            .AliasList
                                            .Where(x => x.Family == updItem.Family && x.ValueOriginal.ToLower() == updItem.ValueOriginal.ToLower())
                                            .SingleOrDefault();

                        if (item2del != null)
                        {
                            localDbCtx.AliasList.Remove(item2del);
                        }
                    }
                    // Commit changes
                    localDbCtx.SaveChanges();
                    fatto = true;
                }
                catch (Exception exc)
                {
                    Log.Error($"EXCEPTION on Alias.DeleteList: {Environment.NewLine}{exc}");
                }
            }
            return fatto;
        }

        #endregion Public Methods

        #region Private Fields

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

        #endregion Private Fields
    }
}