using System.Collections.Generic;
using System.Data;
using System.Linq;
using Kreta.BusinessLogic.Classes;
using Kreta.BusinessLogic.HelperClasses;
using Kreta.Core;
using Kreta.Core.ConnectionType;
using Kreta.Core.Exceptions;
using Kreta.DataAccess.Interfaces;
using Kreta.DataAccessManual;
using Kreta.DataAccessManual.Interfaces;
using Kreta.DataAccessManual.ParameterClasses;
using Kreta.Framework;
using Kreta.Resources;

namespace Kreta.BusinessLogic.Helpers
{
    public class OratervHelper : LogicBase
    {
        public OratervHelper(IConnectionType connectionType) : base(connectionType) { }

        public DataSet GetOraTerv(OratervCO co)
            => Dal.CustomConnection.Run(ConnectionType, h =>
            {
                OratervPCO pco = Convert_CO_to_PCO(co);

                var dal = h.OratervDal(GridParameters);
                return dal.GetOraterv(pco);
            });

        public DataSet GetOratervTantargy(OratervCO co)
            => Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal(GridParameters);
                return dal.GetOratervTantargy(co.OratervId.Value, TanevId);
            });

        private OratervPCO Convert_CO_to_PCO(OratervCO co)
        {
            OratervPCO pco = new OratervPCO()
            {
                TantervId = co.TantervId,
                EvfolyamID = co.Evfolyam,
                Nev = co.Nev,
                TanevId = TanevId,
                IsValidacio = co.IsValidacio
            };

            return pco;
        }

        public void InsertOratervTantargyCO(OratervTantargyCO oratervTargyCO, bool isActivTanev)
        {
            if (oratervTargyCO.EvesOraszam > Constants.MinMaxValues.OratervTantargyEvesOraszamMaxValue)
            {
                throw new BlException(string.Format(TantargyResource.AzEvesOraszamTulNagyErtek, Constants.MinMaxValues.OratervTantargyEvesOraszamMaxValue));
            }

            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                IOraTervTargy oOraTervTargy = Convert_OratervTargyCO_to_OratervTargy(h, oratervTargyCO, isUpdate: false);
                dal.Insert(oOraTervTargy);

                if (isActivTanev)
                {
                    dal.FullUpdate(oOraTervTargy.OraTerv);
                }
            });
        }

        public void UpdateOratervTantargyCO(OratervTantargyCO oratervTargyCO, bool isActivTanev)
        {
            if (oratervTargyCO.EvesOraszam > Constants.MinMaxValues.OratervTantargyEvesOraszamMaxValue)
            {
                throw new BlException(string.Format(TantargyResource.AzEvesOraszamTulNagyErtek, Constants.MinMaxValues.OratervTantargyEvesOraszamMaxValue));
            }

            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                IOraTervTargy oOraTervTargy = Convert_OratervTargyCO_to_OratervTargy(h, oratervTargyCO, isUpdate: true);
                dal.FullUpdate(oOraTervTargy);

                if (isActivTanev)
                {
                    dal.FullUpdate(oOraTervTargy.OraTerv);
                }
            });
        }

        public void DeleteOratervTantargy(int ID)
        {
            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                var entity = dal.GetOraTervTargy();
                entity = dal.GetOraTervTargy(ID);
                dal.Delete(entity);
            });
        }

        public Dictionary<string, string> GetTantargyak(int ID)
        {
            return Dal.CustomConnection.Run(ConnectionType, h =>
            {
                Dictionary<string, string> result = new Dictionary<string, string>();
                result.Add("", StringResourcesUtil.GetString(364));

                var dal = h.OratervDal(GridParameters);
                DataSet ds = dal.GetTantargyak(ID, TanevId);

                foreach (DataRow dr in ds.Tables[0].Rows)
                {
                    result.Add(dr["ID"].ToString(), dr["C_NEV"].ToString());
                }

                return result;
            });
        }

        public Dictionary<string, string> GetTantargyakModOraTervTantargy(int ID, int OraTervTantargyId)
        {
            return Dal.CustomConnection.Run(ConnectionType, h =>
            {
                Dictionary<string, string> result = new Dictionary<string, string>();
                result.Add("", StringResourcesUtil.GetString(364));

                var dal = h.OratervDal(GridParameters);
                DataSet ds = dal.GetTantargyakModOraTervTantargy(ID, OraTervTantargyId, TanevId);

                foreach (DataRow dr in ds.Tables[0].Rows)
                {
                    result.Add(dr["ID"].ToString(), dr["C_NEV"].ToString());
                }

                return result;
            });
        }

        public OratervCO GetOratervCO(int ID)
        {
            return Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var oOraTerv = h.OratervDal().Get(ID);

                OratervCO co = new OratervCO()
                {
                    Nev = oOraTerv.Nev,
                    Evfolyam = oOraTerv.Evfolyam,
                    TantervId = oOraTerv.TantervId,
                    OratervId = ID
                };

                return co;
            });
        }

        public OratervTantargyCO GetOratervTantargyCO(int ID)
        {
            return Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                var oOraTervTargy = dal.GetOraTervTargy();
                oOraTervTargy = dal.GetOraTervTargy(ID);

                OratervTantargyCO co = new OratervTantargyCO()
                {
                    EvesOraszam = oOraTervTargy.EvesOraszam,
                    Tantargy = oOraTervTargy.TantargyId,
                    OratervId = oOraTervTargy.OraTervId,
                    OratervTantargyId = ID
                };

                return co;
            });
        }

        public void InsertOratervCO(OratervCO oratervCO)
        {
            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                var oOraTerv = Convert_OratervCO_to_Oraterv(h, oratervCO, isUpdate: false);
                dal.Insert(oOraTerv);
            });
        }

        public void UpdateOratervCO(OratervCO oratervCO)
        {
            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                var oOraTerv = Convert_OratervCO_to_Oraterv(h, oratervCO, isUpdate: true);
                dal.FullUpdate(oOraTerv);
            });
        }

        public void DeleteOratervCO(int ID)
        {
            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal();
                var oOraTerv = dal.Get(ID);
                dal.Delete(oOraTerv);
            });
        }

        private IOraTerv Convert_OratervCO_to_Oraterv(IDalHandler h, OratervCO oratervCO, bool isUpdate = false)
        {
            var oOraterv = h.OratervDal().Get();
            if (isUpdate)
            {
                oOraterv = h.OratervDal().Get(oratervCO.OratervId.Value);
            }

            oOraterv.Nev = oratervCO.Nev;
            oOraterv.Evfolyam = oratervCO.Evfolyam;
            oOraterv.TantervId = oratervCO.TantervId.Value;
            oOraterv.TanevId = TanevId;

            return oOraterv;
        }

        private IOraTervTargy Convert_OratervTargyCO_to_OratervTargy(IDalHandler h, OratervTantargyCO oratervTargyCO, bool isUpdate = false)
        {
            var dal = h.OratervDal();
            var oOratervTargy = dal.GetOraTervTargy();
            if (isUpdate)
            {
                oOratervTargy = dal.GetOraTervTargy(oratervTargyCO.OratervTantargyId.Value);
            }

            oOratervTargy.OraTervId = oratervTargyCO.OratervId;
            oOratervTargy.EvesOraszam = oratervTargyCO.EvesOraszam;
            oOratervTargy.TantargyId = oratervTargyCO.Tantargy;
            oOratervTargy.TanevId = TanevId;

            return oOratervTargy;
        }

        public bool IfModifyOrDeleteOraTerv(int ID)
        {
            return Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal(GridParameters);
                int result = dal.IfModifyOrDeleteOraTerv(ID);

                return result <= 0;
            });
        }

        public void DeleteAllOratervTantargy(int oratervID)
        {
            Dal.CustomConnection.Run(ConnectionType, h =>
            {
                var dal = h.OratervDal(GridParameters);
                DataSet ds = dal.GetOratervTantargyakById(oratervID, TanevId);

                if (ds.Tables[0].Rows.Count > 0)
                {
                    foreach (DataRow row in ds.Tables[0].Rows)
                    {
                        var oOraTervTargy = dal.GetOraTervTargy();
                        oOraTervTargy = dal.GetOraTervTargy(int.Parse(row["ID"].ToString()));

                        dal.Delete(oOraTervTargy);
                    }
                }
            });
        }

        public List<OratervCO> GetOratervCoList()
        {
            List<OratervCO> result = Dal.CustomConnection.Run(ConnectionType, dalHandler =>
            {
                DataSet dataSet = dalHandler.OratervDal().GetOratervDataSet(TanevId);
                var oratervItemCoList = new List<OratervCO>();
                foreach (DataRow dataRow in dataSet.Tables[0].AsEnumerable())
                {
                    var oratervCo = new OratervCO
                    {
                        OratervId = SDAConvert.ToInt32(dataRow["Id"]),
                        Nev = SDAConvert.ToString(dataRow["OratervNev"]),
                        Evfolyam = SDAConvert.ToInt32(dataRow["EvfolyamId"]),
                        EvfolyamNev = SDAConvert.ToString(dataRow["EvfolyamId_DNAME"]),
                        TantervId = SDAConvert.ToInt32(dataRow["TantervId"]),
                        TantervNev = SDAConvert.ToString(dataRow["TantervNev"]),
                    };
                    oratervItemCoList.Add(oratervCo);
                }

                return oratervItemCoList;
            });

            return result;
        }

        public List<OratervTantargyCO> GetOratervTantargyCoList()
        {
            List<OratervTantargyCO> result = Dal.CustomConnection.Run(ConnectionType, dalHandler =>
            {
                DataSet dataSet = dalHandler.OratervDal().GetOratervTantargyDataSet(TanevId);
                var oratervTantargyItemCoList = new List<OratervTantargyCO>();
                foreach (DataRow dataRow in dataSet.Tables[0].AsEnumerable())
                {
                    var oratervTantargyCo = new OratervTantargyCO
                    {
                        OratervTantargyId = SDAConvert.ToInt32(dataRow["Id"]),
                        OratervId = SDAConvert.ToInt32(dataRow["OratervId"]),
                        Tantargy = SDAConvert.ToInt32(dataRow["TantargyId"]),
                        EvesOraszam = SDAConvert.ToDouble(dataRow["EvesOraszam"]),
                        OratervNev = SDAConvert.ToString(dataRow["OratervNev"]),
                        TantargyNev = SDAConvert.ToString(dataRow["TantargyNev"]),
                    };
                    oratervTantargyItemCoList.Add(oratervTantargyCo);
                }

                return oratervTantargyItemCoList;
            });

            List<OratervCO> oratervCoList = GetOratervCoList();
            foreach (OratervTantargyCO co in result)
            {
                OratervCO oratervCo = oratervCoList.Single(x => x.OratervId == co.OratervId);
                co.TantervNev = oratervCo.TantervNev;
                co.EvfolyamNev = oratervCo.EvfolyamNev;
            }

            return result;
        }
    }
}