using System;
using System.Data;
using System.Linq;
using Ease.CoreV35;
using Ease.CoreV35.Model;
using Ease.CoreV35.DataAccess;
using System.Collections.Generic;
using Payroll.BO;
using Ease.CoreV35.Caching;

namespace Payroll.Service
{
    #region Nationality Service
    [Serializable]
    public class NationalityService : ServiceTemplate, INationalityService 
    {        
        #region Private functions and declaration
        Cache _cache = new Cache(typeof(Nationality));
        #endregion

        #region constructor
        public NationalityService() { }
        #endregion

        #region Object
        private void MapObject(Nationality oNationality, DataReader oReader)
        {
            base.SetObjectID(oNationality, oReader.GetID("NATIONALITYID"));
            oNationality.Code = oReader.GetString("CODE");
            oNationality.Description = oReader.GetString("DESCRIPTION");
            oNationality.Sequence = oReader.GetInt32("SequenceNo").Value;
            oNationality.Status = (EnumStatus)oReader.GetInt32("Status").Value;
            oNationality.CreatedBy = oReader.GetID("CreatedBy");
            oNationality.CreatedDate = oReader.GetDateTime("CreationDate").Value;
            oNationality.ModifiedBy = oReader.GetID("ModifiedBy");
            oNationality.ModifiedDate = oReader.GetDateTime("ModifiedDate");

            this.SetObjectState(oNationality, Ease.CoreV35.ObjectState.Saved);
        }

        protected override T CreateObject<T>(DataReader oReader)
        {
            Nationality oNationality = new Nationality();
            MapObject(oNationality, oReader);
            return oNationality as T;
        }

        protected Nationality CreateObject(DataReader oReader)
        {
            Nationality oNationality = new Nationality();
            MapObject(oNationality, oReader);
            return oNationality;
        }

        #endregion

        #region Service implementation
        public Nationality Get(ID id)
        {
            Nationality oNationality = new Nationality();
            #region Cache Header
            oNationality = _cache["Get", id] as Nationality;
            if (oNationality != null)
                return oNationality;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(NationalityDA.Get(tc, id));
                if (oreader.Read())
                {
                    oNationality = this.CreateObject<Nationality>(oreader);
                }
                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
            #region Cache Footer
            _cache.Add(oNationality, "Get", id);
            #endregion
            return oNationality;
        }

        public Nationality Get(string sCode)
        {
            Nationality oNationality = new Nationality();
            #region Cache Header
            oNationality = _cache["Get", sCode] as Nationality;
            if (oNationality != null)
                return oNationality;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(NationalityDA.Get(tc, sCode));
                if (oreader.Read())
                {
                    oNationality = this.CreateObject<Nationality>(oreader);
                }
                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
            #region Cache Footer
            _cache.Add(oNationality, "Get", sCode);
            #endregion
            return oNationality;
        }

        public ObjectsTemplate<Nationality> Get()
        {
            #region Cache Header

            ObjectsTemplate<Nationality> nationalities = _cache["Get"] as ObjectsTemplate<Nationality>;
            if (nationalities != null)
                return nationalities;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();

                DataReader dr = new DataReader(NationalityDA.Get(tc));                
                nationalities = this.CreateObjects<Nationality>(dr);
                dr.Close();

                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);

                throw new ServiceException(e.Message, e);

                #endregion
            }

            #region Cache Footer

            _cache.Add(nationalities, "Get");

            #endregion

            return nationalities;
        }

        public ObjectsTemplate<Nationality> Get(EnumStatus status)
        {
            #region Cache Header

            ObjectsTemplate<Nationality> nationalities = _cache["Get"] as ObjectsTemplate<Nationality>;
            if (nationalities != null)
                return nationalities;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();

                DataReader dr = new DataReader(NationalityDA.Get(tc, status));
                nationalities = this.CreateObjects<Nationality>(dr);
                dr.Close();

                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);

                throw new ServiceException(e.Message, e);

                #endregion
            }

            #region Cache Footer

            _cache.Add(nationalities, "Get", status);

            #endregion

            return nationalities;
        }
        
        public ID Save(Nationality oNationality)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                if (oNationality.IsNew)
                {
                    int id = tc.GenerateID("NATIONALITY", "NATIONALITYID");
                    int seqID = tc.GenerateID("NATIONALITY", "SequenceNO");
                    base.SetObjectID(oNationality, ID.FromInteger(id));
                    oNationality.Sequence = seqID;
                    NationalityDA.Insert(tc, oNationality);
                }
                else
                {
                    NationalityDA.Update(tc, oNationality);
                }
                tc.End();
                return oNationality.ID;
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
        }

        public void Delete(ID id)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                NationalityDA.Delete(tc, id);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
        }

        #endregion
        
    }
    #endregion
}