using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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
{
   [Serializable]
    public class QuestionAnswerService : ServiceTemplate, IQuestionAnswerService
    {
        #region Private functions and declaration
        Cache _cache = new Cache(typeof(QuestionAnswer));

        #endregion
        public QuestionAnswerService() { }

        private void MapObject(QuestionAnswer oQuestionAnswer, DataReader oReader)
        {
            base.SetObjectID(oQuestionAnswer, oReader.GetID("AnswerID"));
            oQuestionAnswer.AnswerID = oReader.GetID("AnswerID");
            oQuestionAnswer.QuestionID = oReader.GetInt32("QuestionID").GetValueOrDefault();
            oQuestionAnswer.AnswerBody = oReader.GetString("ANSWERBODY");
            oQuestionAnswer.Image = oReader.GetString("Image");
            oQuestionAnswer.IsCorrect = oReader.GetBoolean("IsCorrect").GetValueOrDefault();
            oQuestionAnswer.DisplayOrder = oReader.GetInt32("DisplayOrder").GetValueOrDefault();
            oQuestionAnswer.Weight = oReader.GetDouble("Weight").GetValueOrDefault();            
            this.SetObjectState(oQuestionAnswer, Ease.CoreV35.ObjectState.Saved);
        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            QuestionAnswer oQuestionAnswer = new QuestionAnswer();
            MapObject(oQuestionAnswer, oReader);
            return oQuestionAnswer as T;
        }
        protected QuestionAnswer CreateObject(DataReader oReader)
        {
            QuestionAnswer oQuestionAnswer = new QuestionAnswer();
            MapObject(oQuestionAnswer, oReader);
            return oQuestionAnswer;            
        }
        #region Service implementation 


        public QuestionAnswer Get(ID id)
        {
            QuestionAnswer oQuestionAnswer = new QuestionAnswer();
            #region Cache Header
            oQuestionAnswer = (QuestionAnswer)_cache["Get", id.Integer];
            if (oQuestionAnswer != null)
                return oQuestionAnswer;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(QuestionAnswerDA.Get(tc, id.Integer));
                if (oreader.Read())
                {
                    oQuestionAnswer = this.CreateObject<QuestionAnswer>(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 QuestionAnswer", e);
                #endregion
            }
            #region Cache Footer
            _cache.Add(oQuestionAnswer, "Get", id.Integer);
            #endregion
            return oQuestionAnswer;
        }

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

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

            #endregion

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

        public ObjectsTemplate<QuestionAnswer> GetByQuestionID(ID questionID)
        {
            #region Cache Header

            ObjectsTemplate<QuestionAnswer> oQuestionAnswers = _cache["Get", questionID] as ObjectsTemplate<QuestionAnswer>;
            if (oQuestionAnswers != null)
                return oQuestionAnswers;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(QuestionAnswerDA.GetByQuestionID(tc, questionID.Integer));
                oQuestionAnswers = this.CreateObjects<QuestionAnswer>(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(oQuestionAnswers, "Get", questionID);
            #endregion
            return oQuestionAnswers;           
        }

        public ID Save(QuestionAnswer oQuestionAnswer)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
               
                if (oQuestionAnswer.IsNew)
                {

                    //int id = tc.GenerateID("QuestionAnswer", "QuestionAnswerID");
                    //base.SetObjectID(oQuestionAnswer, ID.FromInteger(id));


                    QuestionAnswerDA.Insert(tc, oQuestionAnswer);
                }
                else
                {
                    QuestionAnswerDA.Update(tc, oQuestionAnswer);
                }
                tc.End();
                return oQuestionAnswer.AnswerID;
            }
            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);
                QuestionAnswerDA.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
            }
        }
        #endregion
    }
}