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

        #endregion
        public LoanService() { }

        private void MapObject(Loan oLoan, DataReader oReader)
        {
            base.SetObjectID(oLoan, oReader.GetID("LoanID"));
            oLoan.Name = oReader.GetString("description");
            oLoan.IsConfirmationRequired = oReader.GetBoolean("isConfirmationRequired").HasValue ? oReader.GetBoolean("isConfirmationRequired").Value : false;
            oLoan.InterestRate = oReader.GetDouble("interestRate").Value;
            oLoan.Sequence = oReader.GetInt32("SequenceNo").Value;
            oLoan.Status = (EnumStatus)oReader.GetInt32("Status").Value;
            oLoan.CreatedBy = oReader.GetID("CreatedBy");
            oLoan.CreatedDate = oReader.GetDateTime("CreationDate").Value;
            oLoan.ModifiedBy = oReader.GetID("ModifiedBy");
            oLoan.ModifiedDate = oReader.GetDateTime("ModifiedDate");
            this.SetObjectState(oLoan, Ease.CoreV35.ObjectState.Saved);
        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            Loan oLoan = new Loan();
            MapObject(oLoan, oReader);
            return oLoan as T;
        }
        protected Loan CreateObject(DataReader oReader)
        {
            Loan oLoan = new Loan();
            MapObject(oLoan, oReader);
            return oLoan;
        }
        #region Service implementation
        public Loan Get(ID id)
        {
            Loan oLoan = new Loan();
            #region Cache Header
            oLoan = _cache["Get", id] as Loan;
            if (oLoan != null)
                return oLoan;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(LoanDA.Get(tc, id));
                if (oreader.Read())
                {
                    oLoan = this.CreateObject<Loan>(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(oLoan, "Get", id);
            #endregion
            return oLoan;
        }

        public Loan Get(string loanNo)
        {
            Loan oLoan = new Loan();
            #region Cache Header
            oLoan = _cache["Get", loanNo] as Loan;
            if (oLoan != null)
                return oLoan;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(LoanDA.Get(tc, loanNo));
                if (oreader.Read())
                {
                    oLoan = this.CreateObject<Loan>(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(oLoan, "Get", loanNo);
            #endregion
            return oLoan;
        }

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

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

            #endregion

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

                DataReader dr = new DataReader(LoanDA.Get(tc,status));
                loans = this.CreateObjects<Loan>(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(loans, "Get",status);

            #endregion

            return loans;
        }

        public ID Save(Loan oLoan)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                if (oLoan.IsNew)
                {
                    int id = tc.GenerateID("LOANBASIC", "LoanID");
                    base.SetObjectID(oLoan, ID.FromInteger(id));
                    int seqNo = tc.GenerateID("LOANBASIC", "SequenceNO");
                    oLoan.Sequence = seqNo;
                    LoanDA.Insert(tc, oLoan);
                }
                else
                {
                    LoanDA.Update(tc, oLoan);
                }


                tc.End();
                return oLoan.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);
                LoanDA.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
}