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


namespace HRM.DA
{
    public class ClaimBalanceDA
    {
        #region Constructor

        private ClaimBalanceDA()
        {
        }

        #endregion


        #region Get

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

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

        internal static IDataReader GetByEmployeeId(TransactionContext tc, int employeeid)
        {
            return tc.ExecuteReader("SELECT * FROM ClaimBalance WHERE EmployeeID=%n", employeeid);
        }

        internal static IDataReader GetCurrentBalancebyEmployeeId(TransactionContext tc, int employeeid)
        {
                        string sql = SQLParser.MakeSQL(@"Select * From
                                                        (
                                                         SELECT Sum(TranAmount) Balance,CASE TranType WHEN %n 
                                                            THEN  'AdvanceAmount'
                                                            WHEN %n 
                                                            THEN  'AdvanceAmount'
                                                            WHEN %n
                                                            THEN  'ExpenseAmount'
                                                            END AS 'AmountType',cb.Balance CurrentBalance
                         	                                FROM  ClaimTran ct
                         	                                INNER JOIN ClaimBalance AS cb ON cb.EmployeeID = ct.EmployeeID
                                                        WHERE ct.EmployeeID=%n
                                                        GROUP BY ct.employeeID,TranType,cb.Balance
                                                        ) as t
                                                        PIVOT
                                                        (
                                                          sum(Balance)
                                                          FOR AmountType IN ([ExpenseAmount],AdvanceAmount)
                                                        ) as P;", 
                                           EnumTranType.Advance,EnumTranType.Manual_Entry_Advance,EnumTranType.Expense, employeeid);
            return tc.ExecuteReader(sql);
        }

        #endregion

        #region Insert

        internal static void Insert(TransactionContext tc, ClaimBalance oClaimBalance)
        {
            string sql = SQLParser.MakeSQL("INSERT INTO ClaimBalance(EmployeeID,Balance) VALUES (%n, %n)",
                oClaimBalance.EmployeeID, oClaimBalance.Balance);
            tc.ExecuteNonQuery(sql);
        }

        #endregion


        #region Update

        internal static void Update(TransactionContext tc, ClaimBalance oClaimBalance)
        {
            string sSQL = SQLParser.MakeSQL("UPDATE ClaimBalance SET EmployeeID=%n,Balance=%n WHERE ClaimBalanceID=%n",
                 oClaimBalance.EmployeeID, oClaimBalance.Balance,
                oClaimBalance.ID);
            tc.ExecuteNonQuery(sSQL);
        }


        #endregion

        #region Delete

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

        #endregion
    }
}