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

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

        private EmployeeCostCenterDA()
        {
        }

        #endregion

        #region Insert function

        internal static void Insert(TransactionContext tc, EmployeeCostCenter item)
        {
            string sSQL = SQLParser.MakeSQL(
                "INSERT INTO EMPCOSTCENTER(ID, employeeID, monthDate, costCenterID, percentage, CurrentCC, CreatedBy, CreationDate)" +
                " VALUES(%n, %n, %d, %n, %n, %b,  %n, %d)", item.ID, item.EmployeeID, item.MonthDate, item.CostCenterID,
                item.Percentage, item.IsCurrentCC, DataReader.GetNullValue(item.CreatedBy, 0),
                DataReader.GetNullValue(item.CreatedDate));
            tc.ExecuteNonQuery(sSQL);
        }

        #endregion

        #region Update function

        internal static void Update(TransactionContext tc, EmployeeCostCenter item)
        {
            string sSQL = SQLParser.MakeSQL(
                "UPDATE EMPCOSTCENTER SET employeeID=%n, monthDate=%d, costCenterID=%n, percentage=%n, ModifiedBy=%n, ModifiedDate=%d" +
                " WHERE ID=%n", item.EmployeeID, item.MonthDate, item.CostCenterID, item.Percentage, item.ModifiedBy,
                DataReader.GetNullValue(item.ModifiedDate), item.ID);
            tc.ExecuteNonQuery(sSQL);
        }

        #endregion

        #region Get Function

        internal static IDataReader Get(TransactionContext tc)
        {
            return tc.ExecuteReader(
                "SELECT EMPCOSTCENTER.* FROM EMPCOSTCENTER, Employee WHERE EMPCOSTCENTER.EmployeeID = Employee.EmployeeID AND  Employee.Status=%n AND"
                + " CurrentCC=%b ORDER BY EmployeeNo, COSTCENTERID", EnumEmployeeStatus.Live, true);
        }

        internal static IDataReader Get(TransactionContext tc, int employeeID)
        {
            return tc.ExecuteReader("SELECT * FROM EMPCOSTCENTER WHERE  "
                                    + " EMPLOYEEID=%n AND CurrentCC=%b ", employeeID, true);
        }

        internal static IDataReader GetByCCID(TransactionContext tc, int CCID)
        {
            return tc.ExecuteReader(
                "SELECT EMPCOSTCENTER.* FROM EMPCOSTCENTER, Employee WHERE EMPCOSTCENTER.EmployeeID = Employee.EmployeeID AND  Employee.Status=%n AND"
                + " COSTCENTERID=%n AND CurrentCC=%b ORDER BY EmployeeNo, COSTCENTERID", EnumEmployeeStatus.Live, CCID,
                true);
        }

        internal static IDataReader GetByEmpIDCCID(TransactionContext tc, int CCID, int EmpID)
        {
            return tc.ExecuteReader(
                "SELECT EMPCOSTCENTER.* FROM EMPCOSTCENTER, Employee WHERE EMPCOSTCENTER.EmployeeID = Employee.EmployeeID AND  Employee.Status=%n AND"
                + " COSTCENTERID=%n AND CurrentCC=%b AND EMPCOSTCENTER.EMPLOYEEID=%n  ORDER BY EmployeeNo, COSTCENTERID",
                EnumEmployeeStatus.Live, CCID, true, EmpID);
        }

        internal static DataSet GetEmpCC(TransactionContext tc, DateTime dEffectDate, string SEmpID)
        {
            string sTableName;
            SEmpID = IDHelper.GetIDs(tc, SEmpID, out sTableName);

            DataSet Emp = new DataSet();
            tc.FillDataset(Emp, new string[] { "Employee" }, "Select EmployeeID,EmployeeNo,Name from Employee", "");
            tc.FillDataset(Emp, new string[] { "EmpCC" },
                "Select EmployeeID,CostCenterID,CurrentCC,Percentage from EmpCostCenter where CurrentCC=1 order by EmployeeID", "");
            tc.FillDataset(Emp, new string[] { "CRG" }, "Select CRGID,Description from CRG", "");
            Emp.Tables["Employee"].Columns.Add("CostCenterID", typeof(int));
            Emp.Tables["Employee"].Columns.Add("Description", typeof(string));
            Emp.Tables["Employee"].Columns.Add("Percentage", typeof(double));

            #region Old Code

            //return tc.ExecuteDataSet("Select Emp.EMPLOYEENO,Emp.NAME,CC.DESCRIPTION,EMC.PERCENTAGE from EMPCOSTCENTER EMC,EMPLOYEE Emp,CRG CC where"
            //                       + " EMC.COSTCENTERID=CC.CRGID"
            //                       + " and Emp.EMPLOYEEID=EMC.EMPLOYEEID"
            //                       + " and EMP.EMPLOYEEID in(%q)"
            //                       + " and EMC.MONTHDATE=%d and EMC.CURRENTCC=1 order by EMp.EMPLOYEENO ", SEmpID, dEffectDate);


            //return tc.ExecuteDataSet("Select EmpPer.* ,"
            //                        + " (Select CRG.DESCRIPTION from CRG where CRG.CRGID=EmpPer.CC) CCDes"
            //                        + " from"
            //                        + " (Select EMPLOYEE.EMPLOYEENO,EMPLOYEE.NAME,EMPLOYEE.EMPLOYEEID,"
            //                        + " (select EMPCOSTCENTER.COSTCENTERID from EMPCOSTCENTER where EMPCOSTCENTER.EMPLOYEEID= EMPLOYEE.EMPLOYEEID ) CC ,"
            //                        + " (select EMPCOSTCENTER.CURRENTCC from EMPCOSTCENTER where EMPCOSTCENTER.EMPLOYEEID= EMPLOYEE.EMPLOYEEID ) CurrentCC ,"
            //                        + " (select EMPCOSTCENTER.PERCENTAGE from EMPCOSTCENTER where EMPCOSTCENTER.EMPLOYEEID= EMPLOYEE.EMPLOYEEID ) Per "
            //                        + " from EMPLOYEE"
            //                        + " )as EmpPer"
            //                        + " where EmpPer.EMPLOYEEID in(%q)"
            //                        + " order by EmpPer.EMPLOYEENO ",SEmpID);

            #endregion

            if (sTableName != "")
                tc.ExecuteNonQuery("Drop TAble %q", sTableName);

            return Emp;
        }

        internal static DateTime GetMaxDate(TransactionContext tc, string EmpID, DateTime dMonthDate)
        {
            DateTime Result;
            object ob = tc.ExecuteScalar(
                "Select Max(Monthdate) MonthDate from EmpCostCenter where MonthDate < %d and EmployeeID=%s", dMonthDate,
                EmpID);

            if (ob != null && ob.ToString().Trim().Length > 0)
            {
                Result = Convert.ToDateTime(ob);
            }
            else
            {
                Result = DateTime.MinValue;
            }

            return Result;
        }

        internal static DataSet GetEmpCCDetails(TransactionContext tc, DateTime dMonthDate, string nEmpID)
        {
            DataSet dSet = new DataSet();
            string sTableName;
            nEmpID = IDHelper.GetIDs(tc, nEmpID, out sTableName);

            if (dMonthDate == DateTime.MinValue)
            {
                dSet = tc.ExecuteDataSet("Select Emp.EmployeeNo,Emp.Name,C.Description,EmpCC.Percentage "
                                         + " from Employee Emp,EmpCostCenter EmpCC,CRG C"
                                         + " where Emp.EmployeeID=EmpCC.EmployeeID"
                                         + " AND EmpCC.CostcenterID=C.CRGID"
                                         + " AND EmpCC.CurrentCC=1 "
                                         + " AND Emp.EmployeeID=%s", nEmpID);
                if (sTableName != "")
                    tc.ExecuteNonQuery("Drop TAble %q", sTableName);
                return dSet;
            }
            else
            {
                dSet = tc.ExecuteDataSet("Select Emp.EmployeeNo,Emp.Name,C.Description,EmpCC.Percentage "
                                         + " from Employee Emp,EmpCostCenter EmpCC,CRG C"
                                         + " where Emp.EmployeeID=EmpCC.EmployeeID"
                                         + " AND EmpCC.CostcenterID=C.CRGID"
                                         + " AND EmpCC.Monthdate=%d"
                                         + " AND EmpCC.CurrentCC=0 "
                                         + " AND Emp.EmployeeID=%s", dMonthDate, nEmpID);
                if (sTableName != "")
                    tc.ExecuteNonQuery("Drop TAble %q", sTableName);
                return dSet;
            }


            //return tc.ExecuteDataSet("SELECT Emp.EMPLOYEENO,Emp.NAME,"
            //                        + " CurrCCName =CASE WHEN EMC.MONTHDATE=%d  AND EMC.CURRENTCC=1 THEN CC.DESCRIPTION ELSE '' END,"
            //                        + " CurrCCPer = CASE WHEN EMC.MONTHDATE=%d  AND EMC.CURRENTCC=1 THEN EMC.PERCENTAGE ELSE '' END,"
            //                        + " PrvCCName = CASE WHEN EMC.MONTHDATE=%d  THEN CC.DESCRIPTION ELSE '' END,"
            //                        + " PrvCCPer = CASE WHEN EMC.MONTHDATE=%d   THEN EMC.PERCENTAGE ELSE '' END"
            //                        + " FROM EMPCOSTCENTER EMC,EMPLOYEE Emp,CRG CC "
            //                        + " where"
            //                        + " EMC.COSTCENTERID=CC.CRGID"
            //                        + " and Emp.EMPLOYEEID=EMC.EMPLOYEEID"
            //                        + " and EMP.EMPLOYEEID in(%q)"
            //                        + " ORDER BY EMp.EMPLOYEENO ",dFromDate,dFromDate,dToDate,dToDate,SEmpID);
        }

        #endregion

        #region Delete function

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

        internal static void UpdateCurrentCCbeforeMonth(TransactionContext tc, int employeeid, bool Iscurrent,
            DateTime month)
        {
            string sSQL =
                SQLParser.MakeSQL("Update EMPCOSTCENTER set CurrentCC=%b WHERE  EmployeeID=%n AND MonthDate <=%d",
                    Iscurrent, employeeid, month);
            tc.ExecuteNonQuery(sSQL);
        }

        internal static void UpdatePreviousCC(TransactionContext tc, int employeeid, bool Iscurrent)
        {
            string sSQL = SQLParser.MakeSQL("Update EMPCOSTCENTER set CurrentCC=%b WHERE  EmployeeID=%n ", Iscurrent,
                employeeid);
            tc.ExecuteNonQuery(sSQL);
        }

        internal static void UpdateLastCC(TransactionContext tc, int nID, bool Iscurrent, int ccID)
        {
            string sSQL = SQLParser.MakeSQL("Update EMPCOSTCENTER set CurrentCC=%b,CostCenterID=%n WHERE  ID=%n ",
                Iscurrent, ccID, nID);
            tc.ExecuteNonQuery(sSQL);
        }

        internal static Int16 GetlastCC(TransactionContext tc, int employeeid)
        {
            Int16 nID = 0;
            string sSQL = SQLParser.MakeSQL("SELECT MAX(ID) from EMPCOSTCENTER WHERE  EmployeeID=%n", employeeid);
            object ob = tc.ExecuteScalar(sSQL);
            if (ob != null && ob.ToString().Trim().Length > 0)
            {
                nID = Convert.ToInt16(ob);
            }

            return nID;
        }

        internal static void DeleteByMonth(TransactionContext tc, DateTime month, int employeeID)
        {
            string sSQL = SQLParser.MakeSQL("Delete from EMPCOSTCENTER WHERE EmployeeID=%n And MonthDate =%d",
                employeeID, month);
            tc.ExecuteNonQuery(sSQL);
        }

        #endregion

        internal static IDataReader GetByMonthStartEnd(TransactionContext tc, DateTime strt, DateTime end,
            int payrollTypeID)
        {
            return tc.ExecuteReader(
                "SELECT EMPCOSTCENTER.* FROM EMPCOSTCENTER, Employee WHERE EMPCOSTCENTER.EmployeeID = Employee.EmployeeID AND  Employee.Status=%n AND"
                + " MonthDate >= %d And MonthDate <= %d and Employee.PayrollTypeId=%n ORDER BY EmployeeNo, COSTCENTERID",
                EnumEmployeeStatus.Live, strt, end, payrollTypeID);
        }
    }
}