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 Leave Service
    [Serializable]
    public class LeaveService : ServiceTemplate, ILeaveService
    {
        #region Private functions and declaration
        Cache _cache = new Cache(typeof(Leave));

        public LeaveService() { }

        private void MapObject(Leave oLeave, DataReader oReader)
        {
            base.SetObjectID(oLeave, oReader.GetID("LeaveID"));
            oLeave.Code = oReader.GetString("Code");
            oLeave.Description = oReader.GetString("Description");
            oLeave.RemarksNeeded = oReader.GetBoolean("RemarksNeeded").Value;
            oLeave.ApplicableFor = (EnumGender)oReader.GetInt32("ApplicableFor").Value;
            oLeave.IsBalanceCalculationNeeded = oReader.GetBoolean("IsBalanceCalRequired").Value;
            oLeave.AutoLeaveReason = oReader.GetBoolean("AutoLeaveReason").Value;
            oLeave.Status = (EnumStatus)oReader.GetInt32("Status").Value;
            oLeave.IsEarnedLeave = oReader.GetBoolean("IsEarnedLeave").Value;
            oLeave.Sequence = oReader.GetInt32("SequenceNo").Value;
            oLeave.CreatedBy = oReader.GetID("CreatedBy");
            oLeave.CreatedDate = oReader.GetDateTime("CreatedDate").Value;
            oLeave.ModifiedBy = oReader.GetID("ModifiedBy");
            oLeave.ModifiedDate = oReader.GetDateTime("ModifiedDate");
            oLeave.IsHalfDayLeave = oReader.GetBoolean("IsHalfDayLeave").Value;
            oLeave.IsCompensatoryLeave = oReader.GetBoolean("IsCompensatoryLeave").Value;
            this.SetObjectState(oLeave, Ease.CoreV35.ObjectState.Saved);
            //this.SetObjectState(oLeave, ObjectState.Saved);

        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            Leave oLeave = new Leave();
            MapObject(oLeave, oReader);
            return oLeave as T;
        }
        private Leave CreateObject(DataReader oReader)
        {
            Leave oLeave = new Leave();
            MapObject(oLeave, oReader);
            return oLeave;
        }

        #endregion

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

        public Leave GetIDByName(string sLeave)
        {
            Leave oLeave = new Leave();
            #region Cache Header
            oLeave = (Leave)_cache["Get", sLeave];
            if (oLeave != null)
                return oLeave;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(LeaveDA.GetIDByName(tc, sLeave));
                if (oreader.Read())
                {
                    oLeave = this.CreateObject<Leave>(oreader);
                }
                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException("Failed to Get Leave", e);
                #endregion
            }
            #region Cache Footer
            _cache.Add(oLeave, "Get", sLeave);
            #endregion
            return oLeave;
        }
        public Leave GetIDByCode(string sLeave)
        {
            Leave oLeave = new Leave();
            #region Cache Header
            oLeave = (Leave)_cache["Get", sLeave];
            if (oLeave != null)
                return oLeave;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(LeaveDA.GetIDByCode(tc, sLeave));
                if (oreader.Read())
                {
                    oLeave = this.CreateObject<Leave>(oreader);
                }
                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException("Failed to Get Leave", e);
                #endregion
            }
            #region Cache Footer
            _cache.Add(oLeave, "Get", sLeave);
            #endregion
            return oLeave;
        }

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

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

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LeaveDA.Get(tc));
                oLeaves = this.CreateObjects<Leave>(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(oLeaves, "Get");
            #endregion
            return oLeaves;
        }

        public ObjectsTemplate<Leave> Get(string InParameterSQL)
        {
            #region Cache Header

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

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LeaveDA.Get(tc, InParameterSQL));
                oLeaves = this.CreateObjects<Leave>(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(oLeaves, "Get");
            #endregion
            return oLeaves;
        }

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

            ObjectsTemplate<Leave> leaves = _cache["Get", status] as ObjectsTemplate<Leave>;
            if (leaves != null)
                return leaves;

            #endregion

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

                DataReader dr = new DataReader(LeaveDA.Get(tc, status));
                leaves = this.CreateObjects<Leave>(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(leaves, "Get", status);

            #endregion

            return leaves;
        }
        public ID Save(Leave oLeave)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                if (oLeave.IsNew)
                {
                    int id = tc.GenerateID("Leave", "LeaveID");
                    base.SetObjectID(oLeave, ID.FromInteger(id));
                    int seqNo = tc.GenerateID("Leave", "SequenceNO");
                    oLeave.Sequence = seqNo;
                    LeaveDA.Insert(tc, oLeave);
                }
                else
                {
                    LeaveDA.Update(tc, oLeave);
                }
                tc.End();
                return oLeave.ID;
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                //throw new ServiceException("Failed to Get Leave", e);
                throw new Exception("Failed to Save Leave. Because " + e.Message, e);
                #endregion
            }

        }

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

        public ObjectsTemplate<Leave> GetLeaves()
        {
            #region Cache Header

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

            #endregion

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

                DataReader dr = new DataReader(LeaveDA.GetLeaves(tc));
                leaves = this.CreateObjects<Leave>(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(leaves, "Get");

            #endregion

            return leaves;
        }
        #endregion
    }
    #endregion
}