using System;
using System.Collections.Generic;
using System.Data;
using System.Text;
using Kreta.DataAccess.Interfaces;
using Kreta.DataAccessManual.Interfaces;
using Kreta.DataAccessManual.Util;
using Kreta.Framework;
using Kreta.Framework.Entities;
using Kreta.Framework.Util;
using SDA.DataProvider;
using SDA.Kreta.Entities;

namespace Kreta.DataAccessManual
{
    internal class LepEloadasDal : DataAccessBase, ILepEloadasDal
    {
        public LepEloadasDal(DalHandler handler, GridParameters gridParameters) : base(handler, gridParameters)
        { }

        public LepEloadasDal(DalHandler handler) : base(handler)
        { }

        #region BaseCRUD

        public ILepEloadas Get()
        {
            return LepEloadas.GiveAnInstance();
        }

        public ILepEloadas Get(int id)
        {
            var entity = LepEloadas.GiveAnInstance();
            entity.LoadByID(id);
            return entity;
        }

        public void Insert(ILepEloadas dto)
        {
            var entity = dto as LepEloadas;
            entity.Insert();
            dto.ID = entity.ID;
            DalHelper.Commit();
        }

        public void FullUpdate(ILepEloadas dto)
        {
            var entity = dto as LepEloadas;
            entity.FullUpdate(true);
            DalHelper.Commit();
        }

        public void Update(ILepEloadas dto)
        {
            var entity = dto as LepEloadas;
            entity.Update();
            DalHelper.Commit();
        }

        public void Delete(ILepEloadas dto)
        {
            var entity = dto as LepEloadas;
            entity.Delete();
            DalHelper.Commit();
        }

        #endregion

        public void LepEloadasUpdateKiseroSzam(int intezmenyId, int tanevId, int eloadasId, int kiseroSzam)
        {
            string commandText = @"
                update T_LEPELOADAS
                set
                  C_KISEROLETSZAM = :pKiseroSzam
                where
                    C_ELOADASID = :pEloadasId and C_INTEZMENYID = :pIntezmenyId and C_TANEVID = :pTanevId
            ";

            using (SDACommand command = DAUtil.CreateCommand(commandText))
            {
                command.Parameters.Add("pIntezmenyId", SDADBType.Int).Value = intezmenyId;
                command.Parameters.Add("pTanevId", SDADBType.Int).Value = tanevId;
                command.Parameters.Add("pEloadasId", SDADBType.Int).Value = eloadasId;
                command.Parameters.Add("pKiseroSzam", SDADBType.Int).Value = kiseroSzam;
                command.ExecuteNonQuery();

                DalHelper.Commit();
            }
        }

        public DataSet LepGetEloadasSzamok(int intezmenyId, int tanevId, int eloadasId)
        {
            var paramsList = new List<CommandParameter>()
            {
                new CommandParameter(nameof(intezmenyId), intezmenyId),
                new CommandParameter(nameof(tanevId), tanevId),
                new CommandParameter(nameof(eloadasId), eloadasId)
            };

            var command = new StringBuilder($@"
                select
                  ISNULL((select e.C_KISEROLETSZAM from T_LEPELOADAS e where
                        e.C_ELOADASID = @{nameof(eloadasId)} and e.C_INTEZMENYID = @{nameof(intezmenyId)}
                        and e.C_TANEVID = @{nameof(tanevId)} and e.TOROLT = 'F'), 0) as KiseroSzam
                    ,ISNULL((select e.ID from T_LEPELOADAS e where
                        e.C_ELOADASID = @{nameof(eloadasId)} and e.C_INTEZMENYID = @{nameof(intezmenyId)}
                        and e.C_TANEVID = @{nameof(tanevId)} and e.TOROLT = 'F'), 0) as EloadasDBId
                  ,ISNULL((select count(1) from T_LEPELOADASJEGYZEK ej where ej.C_ELOADASID = @{nameof(eloadasId)}
                        and ej.C_INTEZMENYID = @{nameof(intezmenyId)} and ej.C_TANEVID = @{nameof(tanevId)}
                        and ej.TOROLT = 'F'), 0) as TanuloSzam
            ");

            return GetData(command.ToString(), paramsList);
        }

        public bool HasLEPAccess(int felhasznaloId)
        {
            using (var command = UserContext.Instance.SDAConnection.CreateCommand())
            {
                command.Transaction = UserContext.Instance.SDATransaction;
                command.Parameters.Add("pFelhasznaloId", felhasznaloId);

                command.CommandText = @"
                    select SUM(Cnt) from (
                        select
                          count(1) as Cnt
                        from T_ALKALMAZOTT_OSSZES a
                        where
                          a.C_LEPKEZELO = 'T' and a.TOROLT = 'F' and a.ID = :pFelhasznaloId
                    union
                        select
                          count(1) as Cnt
                        from T_OSZTALY o
                        where
                          o.TOROLT = 'F' and o.C_OSZTALYFONOKID = :pFelhasznaloId or o.C_OFOHELYETTESID = :pFelhasznaloId
                    ) as x
                ";

                var result = command.ExecuteScalar();
                if (result != DBNull.Value && result != null)
                {
                    if ((int)result > 0)
                    { return true; }
                }
                return false;
            }
        }
    }
}