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

namespace Payroll.Service
{
    [Serializable]
    public class SurveyService : ServiceTemplate, ISurveyService
    {
 #region Private functions and declaration
        Cache _cache = new Cache(typeof(Survey));

        #endregion
        public SurveyService() { }

        private void MapObject(Survey oSurvey, DataReader oReader)
        {
            base.SetObjectID(oSurvey, oReader.GetID("SurveyID"));
            oSurvey.Title = oReader.GetString("Title");
            oSurvey.CategoryID = oReader.GetInt32("CategoryID").GetValueOrDefault();
            oSurvey.Description = oReader.GetString("Description");
            oSurvey.FromDate = oReader.GetDateTime("FromDate").Value;
            oSurvey.ToDate = oReader.GetDateTime("ToDate").Value;
            oSurvey.PublishDate = oReader.GetDateTime("PublishDate");
            oSurvey.IsForCelyStoped = oReader.GetBoolean("IsForCelyStoped").GetValueOrDefault();
            oSurvey.IsPublished = oReader.GetBoolean("IsPublished").GetValueOrDefault();
            oSurvey.SurveyType = (EnumSurveyType)oReader.GetInt32("SurveyType").Value;
            oSurvey.CreatedBy = oReader.GetID("CreatedBy");
            oSurvey.CreatedDate = oReader.GetDateTime("CreationDate").Value;
            oSurvey.ModifiedBy = oReader.GetID("ModifiedBy");
            oSurvey.ModifiedDate = oReader.GetDateTime("ModifiedDate");
            this.SetObjectState(oSurvey, Ease.CoreV35.ObjectState.Saved);
        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            Survey oSurvey = new Survey();
            MapObject(oSurvey, oReader);
            return oSurvey as T;
        }
        protected Survey CreateObject(DataReader oReader)
        {
            Survey oSurvey = new Survey();
            MapObject(oSurvey, oReader);
            return oSurvey;            
        }
        #region Service implementation

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

        public ObjectsTemplate<Survey> Get()
        {

            #region Cache Header

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

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(SurveyDA.Get(tc));
                oSurveys = this.CreateObjects<Survey>(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(oSurveys, "Get");
            #endregion
            return oSurveys;
       
        }
        public ObjectsTemplate<Survey>  Get(int categoryId)
        {
            #region Cache Header

            ObjectsTemplate<Survey> oSurveys = _cache["Get", categoryId] as ObjectsTemplate<Survey>;
            if (oSurveys != null)
                return oSurveys;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(SurveyDA.GetByCategory(tc, categoryId));
                oSurveys = this.CreateObjects<Survey>(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(oSurveys, "Get", categoryId);
            #endregion
            return oSurveys;
        }

        public ObjectsTemplate<Survey> Get(DateTime today)
        {
            ObjectsTemplate<Survey> oSurveys;

            #region CacheHeader
            oSurveys = (ObjectsTemplate<Survey>)_cache["Get"];
            if (oSurveys != null)
                return oSurveys;
            #endregion

            TransactionContext tc = null;
            try
            {
                #region Retrieving data


                tc = TransactionContext.Begin();

                DataReader oreader = new DataReader(SurveyDA.Get(tc, today));
                oSurveys = CreateObjects<Survey>(oreader);

                tc.End();

                #endregion
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();

                throw new ServiceException(e.Message, e);
                #endregion
            }

            #region CacheFooter
            _cache.Add(oSurveys, "Get");
            #endregion

            return oSurveys;
        }

        //public ObjectsTemplate<Survey> Get(Employee oEmp)
        //{
        //    ObjectsTemplate<Survey> oSurveys;

        //    #region CacheHeader
        //    oSurveys = (ObjectsTemplate<Survey>)_cache["Get"];
        //    if (oSurveys != null)
        //        return oSurveys;
        //    #endregion

        //    TransactionContext tc = null;
        //    try
        //    {
        //        #region Retrieving data


        //        tc = TransactionContext.Begin();

        //        DataReader oreader = new DataReader(SurveyDA.Get(tc, oEmp));
        //        oSurveys = CreateObjects<Survey>(oreader);

        //        tc.End();

        //        #endregion
        //    }
        //    catch (Exception e)
        //    {
        //        #region Handle Exception
        //        if (tc != null)
        //            tc.HandleError();

        //        throw new ServiceException(e.Message, e);
        //        #endregion
        //    }

        //    #region CacheFooter
        //    _cache.Add(oSurveys, "Get");
        //    #endregion

        //    return oSurveys;
        //}
        
        public ObjectsTemplate<Survey> Get(int categoryId, DateTime fromDT, DateTime toDT)
        {
            #region Cache Header
            ObjectsTemplate<Survey> oSurveys = _cache["Get",categoryId,fromDT,toDT] as ObjectsTemplate<Survey>;
            if (oSurveys != null)
                return oSurveys;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(SurveyDA.GetByCategory(tc, categoryId,fromDT,toDT));
                oSurveys = this.CreateObjects<Survey>(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(oSurveys, "Get", categoryId, fromDT, toDT);
            #endregion
            return oSurveys;
        }
        public ObjectsTemplate<Survey>  Get(DateTime fromDT, DateTime toDT)
        {
            #region Cache Header
            ObjectsTemplate<Survey> oSurveys = _cache["Get", fromDT, toDT] as ObjectsTemplate<Survey>;
            if (oSurveys != null)
                return oSurveys;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(SurveyDA.GetByCategory(tc, fromDT, toDT));
                oSurveys = this.CreateObjects<Survey>(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(oSurveys, "Get",  fromDT, toDT);
            #endregion
            return oSurveys;
        }
        public ObjectsTemplate<Survey> GetIncompleteSurveys(ID employeeID, EnumSurveyType surveyType, DateTime fromDT, DateTime toDT)
        {
            #region Cache Header
            ObjectsTemplate<Survey> oSurveys = _cache["GetIncompleteSurveys", employeeID.Integer, surveyType, fromDT, toDT] as ObjectsTemplate<Survey>;
            if (oSurveys != null)
                return oSurveys;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(SurveyDA.GetIncompleteSurveys(tc, employeeID.Integer, surveyType, fromDT, toDT));
                oSurveys = this.CreateObjects<Survey>(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(oSurveys, "GetIncompleteSurveys", employeeID.Integer, surveyType, fromDT, toDT);
            #endregion
            return oSurveys;

        }
   

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

                    int id = tc.GenerateID("Survey", "SurveyID");
                    base.SetObjectID(oSurvey, ID.FromInteger(id));

                
                    SurveyDA.Insert(tc, oSurvey);
                }
                else
                {
                    SurveyDA.Update(tc, oSurvey);
                }
                SurveyQuestionDA.DeleteSurveyQuestion(tc, oSurvey.ID.Integer);
                SurveyEmployeeDA.DeleteSurveyEmployee(tc, oSurvey.ID.Integer);
                SurveyOrganizationDA.DeleteSurveyOrganization(tc, oSurvey.ID.Integer);
                SurveyWeightDefinitionDA.DeleteSurveyWeightDefinition(tc, oSurvey.ID.Integer);
                //SurveyResultDA.DeleteSurveyResult(tc, oSurvey.ID.Integer,oSurvey.SurveyEmployees[0].EmployeeID,oSurvey.SurveyQuestions[0].ID.Integer);
                foreach (SurveyQuestion sques in oSurvey.SurveyQuestions)
                {
                    sques.SurveyID = oSurvey.ID;
                    SurveyQuestionDA.Insert(tc, sques);
                }
                foreach (SurveyEmployee semp in oSurvey.SurveyEmployees)
                {
                    semp.SurveyID = oSurvey.ID;
                    SurveyEmployeeDA.Insert(tc, semp);
                }
                foreach (SurveyOrganization sorg in oSurvey.SurveyOrganizations)
                {
                    sorg.SurveyID = oSurvey.ID;
                    SurveyOrganizationDA.Insert(tc, sorg);
                }
                foreach (SurveyWeightDefinition swd in oSurvey.SurveyWeightDefinitions)
                {
                    swd.SurveyID = oSurvey.ID;                    
                    SurveyWeightDefinitionDA.Insert(tc, swd);
                }
                //foreach (SurveyResult sreslt in oSurvey.SurveyResults)
                //{
                //    sreslt.SurveyID = oSurvey.ID;
                //    SurveyResultDA.Insert(tc, sreslt);
                //}
                tc.End();
                return oSurvey.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);
                SurveyDA.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 void Publish(Survey survey)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                SurveyDA.Publish(tc, survey);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
        }
        public void Stop(Survey survey)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                SurveyDA.Stop(tc, survey);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
        }
        #endregion
    }
}