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

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

        private PayScaleDA()
        {
        }

        #endregion

        #region Insert function

        internal static void Insert(TransactionContext tc, PayScale item)
        {
            tc.ExecuteNonQuery(
                "INSERT INTO PayScale(PAYSCALEID, GradeID, ALLOWANCEID, InitialAmount, NOOFSLABS, EffectDate,PercentageInc, Type)" +
                " VALUES(%n, %n, %n, %n, %n, %d, %n, %n)", item.ID, item.GradeID, item.ItemID, item.InitialAmount,
                item.NoOfStep, item.EffectDate, item.IncPercentage, item.ItemType);
        }

        #endregion

        #region Update function

        internal static void Update(TransactionContext tc, PayScale item)
        {
            tc.ExecuteNonQuery(
                "UPDATE PayScale SET gradeID=%n, ALLOWANCEID=%n, initialAmount=%n, NOOFSLABS=%n, effectDate=%d, PercentageInc=%n, Type=%n" +
                " WHERE PAYSCALEID=%n", item.GradeID, item.ItemID, item.InitialAmount, item.NoOfStep, item.EffectDate,
                item.IncPercentage, item.ItemType, item.ID);
        }

        #endregion

        #region Get Function

        internal static IDataReader Get(TransactionContext tc)
        {
            return tc.ExecuteReader("SELECT * FROM PayScale");
        }

        internal static IDataReader Get(TransactionContext tc, int ID)
        {
            return tc.ExecuteReader("SELECT * FROM PayScale WHERE PAYSCALEID=%n", ID);
        }

        internal static IDataReader GetByAllowance(TransactionContext tc, int AllowID)
        {
            return tc.ExecuteReader("SELECT * FROM PayScale WHERE ALLOWANCEID=%n", AllowID);
        }

        internal static IDataReader Get(TransactionContext tc, int GradeID, int AllowID, DateTime nextPayProcessDate)
        {
            return tc.ExecuteReader("SELECT * FROM PayScale WHERE GRADEID=%n AND ALLOWANCEID=%n AND EffectDate=%d",
                GradeID, AllowID, nextPayProcessDate);
        }

        internal static IDataReader GetMaxEffectDate(TransactionContext tc, int payrollTypeID)
        {
            return tc.ExecuteReader(
                "SELECT Max(EFFECTDATE) FROM PayScale Where GradeID IN(Select GradeID from Grades where PayRollTypeID=%n)",
                payrollTypeID);
        }

        internal static IDataReader GetLatest(TransactionContext tc, int payrollTypeID)
        {
            return tc.ExecuteReader(
                "SELECT * FROM PayScale WHERE EFFECTDATE =(SELECT MAX(EFFECTDATE) FROM PayScale Where GradeID IN(Select GradeID from Grades where PayRollTypeID=%n))",
                payrollTypeID);
        }

        internal static IDataReader GetByGrade(TransactionContext tc, int id)
        {
            return tc.ExecuteReader(
                "SELECT * FROM PayScale WHERE GRADEID=%n and EffectDate= (SELECT MAX(EFFECTDATE) FROM PayScale)", id);
        }

        #endregion

        #region Delete function

        internal static void Delete(TransactionContext tc, int id)
        {
            tc.ExecuteNonQuery("DELETE FROM PAYSCALEITEM WHERE PAYSCALEID=%n", id);
            tc.ExecuteNonQuery("DELETE FROM PayScale WHERE PAYSCALEID=%n", id);
        }

        internal static void DeleteByGrade(TransactionContext tc, int GradeID)
        {
            tc.ExecuteNonQuery("DELETE FROM PAYSCALEITEM WHERE GRADEID=%n", GradeID);
            tc.ExecuteNonQuery("DELETE FROM PayScale WHERE GRADEID=%n", GradeID);
        }

        #endregion
    }
}