using HRM.BO;
using HRM.DA;
using Ease.Core.DataAccess;
using Ease.Core.Model;
using Ease.Core.Utility;
using System;
using System.Collections.Generic;
using System.Data;
using Microsoft.AspNetCore.Http;
using NPOI.SS.Formula.Functions;
using System.Collections;

namespace HRM.DA
{
    public class QuestionnaireService : ServiceTemplate, IQuestionnaireService
    {
        public QuestionnaireService(){ }

        #region Mapping Object
        private void MapObject(Questionnaire oQuestionnaire, DataReader oReader)
        {
            base.SetObjectID(oQuestionnaire, oReader.GetInt32("QuestionnaireID").Value);
            oQuestionnaire.Description = oReader.GetString("Description");
            oQuestionnaire.Point = oReader.GetDouble("Point").Value;
            oQuestionnaire.CompetencyID = oReader.GetInt32("COMPETENCYID").Value;
            oQuestionnaire.GradeIDsInString = oReader.GetString("GradeIDs");
            if(oQuestionnaire.GradeIDsInString != "")
                oQuestionnaire.GradeIDs = new List<int>(Array.ConvertAll(oQuestionnaire.GradeIDsInString.Split(','), int.Parse));
            oQuestionnaire.CreatedBy = oReader.GetInt32("CreatedBy", 0);
            oQuestionnaire.CreatedDate = oReader.GetDateTime("CreationDate") == null
                ? DateTime.Today
                : oReader.GetDateTime("CreationDate").Value;
            oQuestionnaire.ModifiedBy = oReader.GetInt32("ModifiedBy", 0);
            oQuestionnaire.ModifiedDate = oReader.GetDateTime("ModifiedDate");
            oQuestionnaire.Applicability = false;
            this.SetObjectState(oQuestionnaire, Ease.Core.ObjectState.Saved);
        }

        protected override T CreateObject<T>(DataReader oReader)
        {
            Questionnaire oQuestionnaire = new Questionnaire();
            MapObject(oQuestionnaire, oReader);
            return oQuestionnaire as T;
        }
        protected Questionnaire CreateObject(DataReader oReader)
        {
            Questionnaire oQuestionnaire = new Questionnaire();
            MapObject(oQuestionnaire, oReader);
            return oQuestionnaire;
        }
        #endregion

        #region Save
        public int Save(Questionnaire item)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                if (item.IsNew)
                {
                    int id = tc.GenerateID("Questionnaire", "QuestionnaireID");
                    base.SetObjectID(item, id);
                    QuestionnaireDA.Insert(tc, item);
                }
                else
                {
                    QuestionnaireDA.Update(tc, item);
                }

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

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }
        }
        #endregion

        #region Delete
        public void Delete(int id)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                QuestionnaireDA.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

        #region Get Functions
        public Questionnaire Get(int id)
        {
            Questionnaire oQuestionnaire = null;
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(QuestionnaireDA.Get(tc, id));
                if (oreader.Read())
                {
                    oQuestionnaire = this.CreateObject<Questionnaire>(oreader);
                }

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

                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }

            return oQuestionnaire;
        }
        public List<Questionnaire> Get()
        {
            List<Questionnaire> Questionnaires = new List<Questionnaire>();

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

                DataReader dr = new DataReader(QuestionnaireDA.Get(tc));
                Questionnaires = this.CreateObjects<Questionnaire>(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
            }

            return Questionnaires;
        }
        #endregion

    }
}