using HRM.BO;
using Ease.Core.DataAccess;
using System;
using System.Collections.Generic;
using System.Data;


namespace HRM.DA
{
    internal class SurveyResultDA
    {
        #region Constructor

        private SurveyResultDA()
        {
        }

        #endregion

        #region Insert function

        internal static void Insert(TransactionContext tc, SurveyResult item)
        {
            tc.ExecuteNonQuery(
                "INSERT INTO SurveyResult(SurveyID, EmployeeID, AnswerID, QuestionID, IsCorrect, ForEmployeeID, Weight,CandidateID)" +
                " VALUES(%n, %n, %n, %n, %b, %n, %n,%n)", item.SurveyID, item.EmployeeID, item.AnswerID, item.QuestionID,
                item.IsCorrect, item.ForEmployeeID, item.Weight,item.CandidateID);
        }

        public static void InsertSurveyResult(TransactionContext tc, SurveyResult oItem)
        {
            tc.ExecuteNonQuery(
                "INSERT INTO SurveyResult(SurveyId, EmployeeId, QuestionId, AnswerId, IsCorrect,ForEmployeeID)" +
                " VALUES(%n, %n, %n, %n, %n, %n)", oItem.SurveyID, oItem.EmployeeID, oItem.QuestionID, oItem.AnswerID,
                oItem.IsCorrect, oItem.ForEmployeeID);
        }

        #endregion

        #region Update function

        internal static void Update(TransactionContext tc, SurveyResult item)
        {
            tc.ExecuteNonQuery(
                "UPDATE SurveyResult SET EmployeeID=%n, AnswerID=%n, QuestionID=%n, IsCorrect=%b, ForEmployeeID=%n, Weight=%n" +
                " WHERE SurveyID=%n", item.EmployeeID, item.AnswerID, item.QuestionID, item.IsCorrect,
                item.ForEmployeeID, item.Weight, item.SurveyID);
        }

        public static void UpdateSurveyResult(TransactionContext tc, SurveyResult oItem)
        {
            tc.ExecuteNonQuery("UPDATE SurveyResult SET IsCorrect=%n,ForEmployeeID=%n" +
                               " WHERE SurveyId=%n AND EmployeeId=%n AND QuestionId=%n AND AnswerId=%n",
                oItem.IsCorrect, oItem.ForEmployeeID, oItem.SurveyID, oItem.EmployeeID, oItem.QuestionID,
                oItem.AnswerID);
        }

        #endregion

        #region Get Function

        public static IDataReader GetSurveyResult(TransactionContext tc)
        {
            return tc.ExecuteReader("SELECT * FROM SurveyResult");
        }

        public static IDataReader GetSurveyResult(TransactionContext tc, int nSurveyId)
        {
            return tc.ExecuteReader("SELECT * FROM SurveyResult WHERE SurveyId=%n", nSurveyId);
        }

        public static IDataReader GetSurveyResult(TransactionContext tc, int nSurveyId, string EmployeeIds)
        {
            return tc.ExecuteReader(
                "SELECT * FROM SurveyResult WHERE SurveyId=%n AND EmployeeId in (" + EmployeeIds +
                ") and ForEmployeeID=0", nSurveyId);
        }

        public static IDataReader GetSurveyResultByCandidateID(TransactionContext tc, int surveyId, int candidateId, int questionID)
        {
            return tc.ExecuteReader(
                "SELECT * FROM SurveyResult WHERE SurveyId=%n AND candidateId =%n and QuestionId=%n", surveyId,
                candidateId, questionID);
        }

        public static IDataReader GetSurveyResult(TransactionContext tc, int surveyId, int employeeId, int questionID)
        {
            return tc.ExecuteReader(
                "SELECT * FROM SurveyResult WHERE SurveyId=%n AND EmployeeId =%n and QuestionId=%n ", surveyId,
                employeeId, questionID);
        }

        public static IDataReader GetSurveyResult(TransactionContext tc, int nSurveyId, string EmployeeIds,
            int forEmpId)
        {
            return tc.ExecuteReader(
                "SELECT * FROM SurveyResult WHERE SurveyId=%n AND EmployeeId in (%s) and ForEmployeeID=%n", nSurveyId,
                EmployeeIds, forEmpId);
        }

        public static DataSet GetSurveyResultReport(TransactionContext tc, int surveyID)
        {
            string query = string.Empty;
            DataSet dataSet = null;

            query = "select P.*,Q.HitCount from " +
                    "(select Ques.QuestionID,Ques.QuestionBody,QA.AnswerID,QA.AnswerBody from questionAnswer QA inner join Question Ques on QA.QuestionID=Ques.QuestionID)P " +
                    "inner join " +
                    "(select SR.QuestionID,SR.AnswerID,count(Iscorrect)as HitCount,SR.SurveyID from SurveyResult SR group by SR.QuestionID,SR.AnswerID,SR.SurveyID)Q " +
                    "on P.QuestionID=Q.QuestionID " +
                    "and P.AnswerID=Q.AnswerID " +
                    "and P.QuestionID in(select QuestionID from surveyQuestion where surveyid=%n) " +
                    "union all " +
                    "select P.*,0 HitCount from " +
                    "(select Ques.QuestionID,Ques.QuestionBody, QA.AnswerID,QA.AnswerBody from questionAnswer QA inner join Question Ques on QA.QuestionID=Ques.QuestionID)P " +
                    "where P.AnswerID not in( select distinct SR.AnswerID from surveyResult SR where SR.surveyID=%n) " +
                    "and P.QuestionID in(select QuestionID from surveyQuestion where surveyid=%n) " +
                    "order by P.answerid";
            dataSet = tc.ExecuteDataSet(query, surveyID, surveyID, surveyID);

            return dataSet;
        }

        public static IDataReader GetSurveyResults(TransactionContext tc, int surveyID,int candidateId)
        {
            return tc.ExecuteReader("SELECT * FROM SurveyResult where surveyID=%n and candidateId=%n",surveyID,candidateId);
        }

        #endregion

        #region Delete function

        public static void DeleteSurveyResult(TransactionContext tc, int nSurveyId, int nEmployeeId, int nQuestionId,
            int nAnswerId)
        {
            //tc.ExecuteNonQuery(
            //    "DELETE FROM SurveyResult WHERE SurveyId=%n AND EmployeeId=%n AND QuestionId=%n AND AnswerId=%n",
            //    nSurveyId, nEmployeeId, nQuestionId, nAnswerId);
            tc.ExecuteNonQuery(
                "DELETE FROM SurveyResult WHERE SurveyId=%n AND QuestionId=%n AND AnswerId=%n",
                nSurveyId, nEmployeeId, nQuestionId, nAnswerId);
        }

        public static void DeleteSurveyResult(TransactionContext tc, int nSurveyId, int nEmployeeId, int nQuestionId)
        {
            tc.ExecuteNonQuery("DELETE FROM SurveyResult WHERE SurveyId=%n AND EmployeeId=%n AND QuestionId=%n ",
                nSurveyId, nEmployeeId, nQuestionId);
        }

        public static void UpdaeAnswerCount(TransactionContext tc, int surveyId, int QuestionId, int AnswerId)
        {
            tc.ExecuteNonQuery(
                "Update SurveyAnswerCount set HitCount=HitCount+1 where SurveyId=%n,QuestionId=%n,AnswerId=%n",
                surveyId, QuestionId, AnswerId);
        }

        public static void DeleteSurveyResult(TransactionContext tc, int nSurveyId, int nEmployeeId)
        {
            tc.ExecuteNonQuery("DELETE FROM SurveyResult WHERE SurveyId=%n AND EmployeeId=%n", nSurveyId, nEmployeeId);
        }

        public static void DeleteSurveyResultByCandidateID(TransactionContext tc, int surveyId, int QuestionId, int candidateid)
        {
            tc.ExecuteNonQuery(
                "delete from  SurveyResult where SurveyId=%n and QuestionId=%n and candidateid=%n",
                surveyId, QuestionId, candidateid);
        }

        #endregion
    }
}