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

namespace Kreta.DataAccessManual
{
    internal class KirSzirFeladatellatasiHelyDAL : DataAccessBase, IKirSzirFeladatellatasiHelyDAL
    {
        public KirSzirFeladatellatasiHelyDAL(DalHandler handler) : base(handler)
        {
        }

        public KirSzirFeladatellatasiHelyDAL(DalHandler handler, GridParameters parameters) : base(handler, parameters)
        {
        }
        public IKirSzirFeladatellatasiHely Get()
        {
            return KirSzirFeladatellatasiHely.GiveAnInstance();
        }

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

        public int? GetByFeladatellatasiHelyId(int intezmenyId, int tanevId, int feladatellatasiHelyId, DateTime datum)
        {
            using (var command = new SDACommand())
            {
                command.Connection = UserContext.Instance.SDAConnection;
                command.Transaction = UserContext.Instance.SDATransaction;

                command.Parameters.Add(nameof(intezmenyId), intezmenyId);
                command.Parameters.Add(nameof(tanevId), tanevId);
                command.Parameters.Add(nameof(feladatellatasiHelyId), feladatellatasiHelyId);
                command.Parameters.Add(nameof(datum), datum);
                command.CommandText = $@"
          SELECT
            ID
          FROM
            T_KIRSZIRFELADATELLATASIHELY_OSSZES
          WHERE
              TOROLT = 'F'
                        AND C_FELADATELLATASIHELYID = @{nameof(feladatellatasiHelyId)}
                        AND C_DATUM = @{nameof(datum)}
            AND C_INTEZMENYID = @{nameof(intezmenyId)}
            AND C_TANEVID = @{nameof(tanevId)}";

                var id = command.ExecuteScalar();

                if (int.TryParse(id?.ToString(), out int result))
                {
                    return result;
                }

                return null;
            }
        }

        public DataSet GetKirSzirFeladatellatasiHelyList(int tanevId, DateTime datum, int? feladatKategoriaId = null)
        {
            string commandText = @"
                SELECT
                   fh.ID as ID
                  ,fh.C_FELADATELLATASIHELYID AS FeladatellatasiHelyId
                  ,C_OKTATASINEVELESIFELADATNEV AS Nev
                  ,C_MUKODESIHELYNEV AS MukodesiHelyNev
                  ,C_MUKODESIHELYNEV + ' - ' + C_OKTATASINEVELESIFELADATNEV AS TeljesNev
                FROM T_KIRSZIRFELADATELLATASIHELY_OSSZES fh
                WHERE fh.C_TANEVID = :pTanevId
                  AND fh.C_DATUM = :pDatum" +
                  (feladatKategoriaId.IsEntityId() ? "AND fh.C_FELADATKATEGORIAID = :pfeladatKategoriaId" : "") + @"
                  AND fh.TOROLT = 'F'
                ORDER BY fh.C_FELADATELLATASIHELYID
            ";

            var commandParameterList = new List<CommandParameter>
            {
                new CommandParameter("pTanevId", tanevId),
                new CommandParameter("pDatum", datum)
            };
            if (feladatKategoriaId.IsEntityId())
            {
                commandParameterList.Add(new CommandParameter("pfeladatKategoriaId", feladatKategoriaId));
            }
            DataSet dataSet = GetData(commandText, commandParameterList);
            return dataSet;
        }
    }
}