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


namespace HRM.DA
{
    #region PFTransactionDA

    internal class PFTransactionDA
    {
        #region Constructor

        private PFTransactionDA()
        {
        }

        #endregion

        #region Insert function

        internal static void Insert(TransactionContext tc, PFTransaction item)
        {
            tc.ExecuteNonQuery(
                "INSERT INTO PFTransaction(PFTRANID, employeeID, tranDate, tranAmount, tranType, CreatedBy, CreationDate, USERID)" +
                " VALUES(%n, %n, %d, %n, %n, %n, %d, %n)", item.ID, item.EmployeeID, item.MonthDate, item.TranAmount,
                item.TranType, item.CreatedBy, item.CreatedDate, item.CreatedBy);
        }

        #endregion

        #region Update function

        internal static void Update(TransactionContext tc, PFTransaction item)
        {
            tc.ExecuteNonQuery("UPDATE PFTransaction SET  tranAmount=%n, ModifiedBy=%n, ModifiedDate=%d" +
                               " WHERE employeeID=%n, tranDate=%d, tranType=%n", item.TranAmount, item.EmployeeID,
                item.MonthDate, item.TranType
                , item.ModifiedBy, item.ModifiedDate);
        }

        #endregion

        #region Get Function

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

        internal static double GetPFAmount(TransactionContext tc, int nEmpID)
        {
            double nAmount = 0.0;
            object obj = tc.ExecuteScalar("Select sum(tranAmount)  from PFTransaction where employeeID=%n", nEmpID);
            if (obj != null && obj.ToString() != "")
            {
                nAmount = Convert.ToDouble(obj);
            }
            else
            {
                nAmount = 0.0;
            }

            return nAmount;
        }

        internal static DataSet GetPFBalance(TransactionContext tc, int nEmpID, DateTime salaryMonth)
        {
            string sQl = SQLParser.MakeSQL(
                "SELECT  1  TranTP, 'Own Contribution'  DESCRIPTION, ISNULL(SUM(TranAmount),0)  Amount FROM PFTransaction WHERE TranType=1 AND EmployeeID=%n and TranDate<%d" +
                " UNION (SELECT 2  TranTP, 'Company Contribution' DESCRIPTION, ISNULL(SUM(TranAmount),0) Amount FROM PFTransaction WHERE TranType=2 AND EmployeeID=%n and TranDate<%d) " +
                " UNION (SELECT 3 TranTP, 'Interest'  DESCRIPTION, ISNULL(SUM(TranAmount),0) Amount FROM PFTransaction WHERE TranType=3 AND EmployeeID=%n and TranDate<%d)",
                nEmpID, salaryMonth, nEmpID, salaryMonth, nEmpID, salaryMonth);
            DataSet pfBalance = tc.ExecuteDataSet(sQl);

            return pfBalance;
        }

        internal static DataSet GetPFBalance(TransactionContext tc, DateTime salaryMonth)
        {
            string sQl = SQLParser.MakeSQL(@"SELECT pf.EmployeeID, pf.pf,cpf.CPF,pfint.PFInt,cpfint.CPFInt from
                                            (SELECT e.EmployeeID,SUM(p.TranAmount) PF FROM PFTransaction p, Employee e
                                            WHERE e.EmployeeID=p.EmployeeID AND 
                                            e.JoiningDate<=%d AND p.TranType=1
                                            GROUP BY e.EmployeeID) pf, 
                                             (SELECT e.EmployeeID,SUM(p.TranAmount) CPF FROM PFTransaction p, Employee e
                                            WHERE e.EmployeeID=p.EmployeeID AND 
                                            e.JoiningDate<=%d AND p.TranType=2
                                            GROUP BY e.EmployeeID)cpf,
                                            (SELECT e.EmployeeID,SUM(p.TranAmount) PFInt FROM PFTransaction p, Employee e
                                            WHERE e.EmployeeID=p.EmployeeID AND 
                                            e.JoiningDate<=%d AND p.TranType=4
                                            GROUP BY e.EmployeeID)pfint,
                                            (SELECT e.EmployeeID,SUM(p.TranAmount) CPFInt FROM PFTransaction p, Employee e
                                            WHERE e.EmployeeID=p.EmployeeID AND 
                                            e.JoiningDate<=%d AND p.TranType=5
                                            GROUP BY e.EmployeeID)cpfint
                                            WHERE pf.EmployeeID=cpf.EmployeeID AND
                                            cpf.EmployeeID=pfint.EmployeeID AND
                                            pfint.EmployeeID=cpfint.EmployeeID", salaryMonth, salaryMonth, salaryMonth,
                salaryMonth);
            DataSet pfBalance = tc.ExecuteDataSet(sQl);

            return pfBalance;
        }

        internal static DataSet GetPFBalanceBAT(TransactionContext tc, DateTime fromDate, DateTime endDate)
        {
            string sQl = SQLParser.MakeSQL(@"SELECT * FROM VWPFBALANCE WHERE TRANDATE =%d", fromDate);
            DataSet pfBalance = tc.ExecuteDataSet(sQl);

            return pfBalance;
        }

        #endregion

        #region Delete function

        internal static void Delete(TransactionContext tc, int employeeId, DateTime month, EnumPFTranType type)
        {
            tc.ExecuteNonQuery("DELETE FROM PFTransaction WHERE EmployeeId=%n AND trandate=%d AND tranType=%n",
                employeeId, month, (int)type);
        }

        #endregion
    }

    #endregion
}