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

namespace Kreta.DataAccessManual
{
    internal class TanevDAL : DataAccessBase, ITanevDal
    {
        public TanevDAL(DalHandler handler, GridParameters parameters) : base(handler, parameters)
        {

        }

        public TanevDAL(DalHandler handler) : base(handler)
        {

        }

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

        public int GetAktivTanevId()
        {
            DataSet dataSet = GetTanevData();

            if (dataSet.Tables.Count == 0)
            {
                return 0;
            }

            var result = Convert.ToInt32(dataSet.Tables[0].Rows[0]["ID"]);
            return result;
        }

        public DataSet GetTanevData(int? tanevId = null)
        {

            var commandParameterList = new List<CommandParameter>
            {
                new CommandParameter("pNapTipusElsoTanitasiNapId", (int) NapTipusEnum.elso_tanitasi_nap),
                new CommandParameter("pNapTipusUtolsoTanitasiNapId", (int) NapTipusEnum.utolso_tanitasi_nap),
                new CommandParameter("pNapTipusUtolsoTanitasiNapVegzosId", (int) NapTipusEnum.utolso_tanitasi_nap_a_vegzos_evfolyamokon)
            };
            if (tanevId.IsEntityId())
            {
                commandParameterList.Add(new CommandParameter("pErtekTipusRadioButtonGroupId", (int)SystemSettingsControlTypeEnum.RadioButtonGroup));
                commandParameterList.Add(new CommandParameter("pErtekTipusTrueFalseId", (int)SystemSettingsControlTypeEnum.TrueFalse));
                commandParameterList.Add(new CommandParameter("pFoglalkozasokRogziteseHetvegere", (int)RendszerBeallitasTipusEnum.Foglalkozasok_Rogzitese_Hetvegere));
                commandParameterList.Add(new CommandParameter("pTanevId", tanevId));
            }

            string commandText = @"
                SELECT
                   tv.ID AS Id
                  ,tv.C_NEV AS Nev
                  ,tv.C_KEZDONAP AS KezdoNap
                  ,tv.C_UTOLSONAP AS UtolsoNap
                  ,COALESCE((SELECT TOP 1 tr.C_DATUM FROM T_TANEVRENDJE_OSSZES tr WHERE tr.C_NAPTIPUSA = :pNapTipusElsoTanitasiNapId AND tr.C_TANEVID = tv.ID AND tr.TOROLT = 'F'), tv.C_ELSOTANITASINAP) AS ElsoTanitasiNap
                  ,COALESCE((SELECT TOP 1 tr.C_DATUM FROM T_TANEVRENDJE_OSSZES tr WHERE tr.C_NAPTIPUSA = :pNapTipusUtolsoTanitasiNapId AND tr.C_TANEVID = tv.ID AND tr.TOROLT = 'F'), tv.C_UTOLSOTANITASINAP) AS UtolsoTanitasiNap
                  ,COALESCE((SELECT TOP 1 tr.C_DATUM FROM T_TANEVRENDJE_OSSZES tr WHERE tr.C_NAPTIPUSA = :pNapTipusUtolsoTanitasiNapVegzosId AND tr.C_TANEVID = tv.ID AND tr.TOROLT = 'F'), tv.C_UTOLSOTANITASINAP) AS UtolsoTanitasiNapVegzos
                  ,tv.C_SORSZAM AS Sorszam
                  ,tv.C_AKTIV AS IsAktiv
                  ,tv.C_KOVETKEZO AS IsKovetkezo
                  ,tv.C_ISKIVALASZTHATO AS IsKivalaszthato";

            if (tanevId.IsEntityId())
            {
                commandText += @"
                  ,(SELECT
                    CASE
                      WHEN rb.C_ERTEKTIPUS = :pErtekTipusRadioButtonGroupId
                        THEN (
                          SELECT Value
                          FROM OPENJSON(JSON_QUERY(rb.C_ERTEK,'$.Options'))
                            WITH (
                               Selected nvarchar(10) '$.Selected'
                              ,Value int '$.Value'
                            )
                          WHERE Selected = 'true'
                        )
                      WHEN rb.C_ERTEKTIPUS = :pErtekTipusTrueFalseId
                        THEN IIF(JSON_VALUE(rb.C_ERTEK, '$.Value') = 'true', 1, 0)
                      ELSE NULL
                    END
                  FROM T_RENDSZERBEALLITAS_OSSZES rb
                  WHERE rb.C_BEALLITASTIPUS = :pFoglalkozasokRogziteseHetvegere AND rb.C_TANEVID = tv.ID AND rb.TOROLT = 'F') AS FoglalkozasokRogziteseHetvegereEnumValue ";
            }
            else
            {
                commandText += @"
                  ,NULL AS FoglalkozasokRogziteseHetvegereEnumValue ";
            }

            commandText += @"
                FROM T_TANEV_OSSZES tv
                WHERE tv.TOROLT = 'F' ";

            if (tanevId.IsEntityId())
            {
                commandText += @"
                  AND tv.ID = :pTanevId";
            }
            else
            {
                commandText += @"
                  AND tv.C_AKTIV = 'T' ";
            }

            var dataSet = GetData(commandText, commandParameterList, booleanColumns: "IsAktiv,IsKovetkezo,IsKivalaszthato");
            return dataSet;
        }

        public DataSet GetTanevek()
        {
            const string commandText = @"
                select ID, C_NEV Nev from T_TANEV_OSSZES WHERE TOROLT = 'F' AND C_ISKIVALASZTHATO = 'T' ";

            var ds = this.GetData(commandText);

            return ds;
        }

        public DataSet GetAktivAndKovTanevek()
        {
            const string commandText = @"
                select ID, C_NEV Nev from T_TANEV_OSSZES WHERE TOROLT = 'F' AND C_ISKIVALASZTHATO = 'T' AND (C_AKTIV = 'T' OR C_KOVETKEZO = 'T')";

            var ds = this.GetData(commandText);

            return ds;
        }

        public DataSet GetAktivTanevek()
        {
            const string commandText = @"
                select ID, C_NEV Nev from T_TANEV_OSSZES WHERE TOROLT = 'F' AND C_ISKIVALASZTHATO = 'T' AND C_AKTIV = 'T'";

            var ds = this.GetData(commandText);

            return ds;
        }

        public DataSet GetTanevekNevAsID()
        {
            const string commandText = @"select distinct C_NEV ID, C_NEV Nev from T_TANEV where TOROLT = 'F'";

            var ds = this.GetData(commandText);

            return ds;
        }

        public DataSet GetKovetkezoTanev()
        {
            const string command = @"select ID,
C_NEV Nev
from
T_TANEV_OSSZES
where TOROLT = 'F' and
C_KOVETKEZO = 'T'
";
            return this.GetData(command);
        }

        public DataSet GetElozoTanev()
        {
            const string command = @"
SELECT
   ID
  ,C_NEV Nev
FROM T_TANEV
WHERE C_SORSZAM = (SELECT C_SORSZAM - 2 FROM T_TANEV WHERE C_AKTIV = 'T')
";
            return this.GetData(command);
        }

        public int GetKovTanevId()
        {
            const string commandText = @"
                select
                    ID
                from T_TANEV_OSSZES
                where
                    TOROLT = 'F' and C_SORSZAM = (select C_SORSZAM + 2 from T_TANEV where C_AKTIV = 'T' and TOROLT = 'F')
            ";

            var ds = this.GetData(commandText);
            return ds.Tables[0].Rows.Count == 1 ? Convert.ToInt32(ds.Tables[0].Rows[0]["ID"]) : -1;
        }

        public int GetPrevTanevId()
        {
            const string commandText = @"
                select
                    ID
                from T_TANEV_OSSZES
                where
                    TOROLT = 'F' and C_SORSZAM = (select C_SORSZAM - 2 from T_TANEV where C_AKTIV = 'T' and TOROLT = 'F')
            ";

            var ds = this.GetData(commandText);
            return ds.Tables[0].Rows.Count == 1 ? Convert.ToInt32(ds.Tables[0].Rows[0]["ID"]) : -1;
        }

        public DataSet GetFelhasznalokTanevekByFelhasznaloId(int felhasznaloId)
        {
            using (var command = new SDACommand())
            {
                command.Connection = UserContext.Instance.SDAConnection;
                command.Transaction = UserContext.Instance.SDATransaction;
                command.CommandType = CommandType.StoredProcedure;
                command.CommandText = "uspGetFelhasznalokTanevekByFelhasznaloId";

                command.Parameters.Add("pFelhasznaloId", felhasznaloId);

                var ds = new DataSet();
                using (var adapter = new SDADataAdapter())
                {
                    adapter.SelectCommand = command;
                    adapter.Fill(ds);
                }
                return ds;
            }
        }

        public string GetAktivTanevNev()
        {
            DataSet dataSet = GetTanevData();
            return dataSet.Tables[0].AsEnumerable().FirstOrDefault()?.Field<string>("Nev");
        }

        public DataSet GetKovetkezoTanevAktivalhatosagAdatok(int intezmenyId)
        {
            using (var command = new SDACommand())
            {
                command.Connection = UserContext.Instance.SDAConnection;
                command.Transaction = UserContext.Instance.SDATransaction;
                command.CommandType = CommandType.StoredProcedure;
                command.CommandText = "uspGetKovetkezoTanevAktivalhatosagAdatok";

                command.Parameters.Add("pIntezmenyId", intezmenyId);

                var ds = new DataSet();
                using (var adapter = new SDADataAdapter())
                {
                    adapter.SelectCommand = command;
                    adapter.Fill(ds);
                }
                return ds;
            }
        }
    }
}