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

namespace HRM.DA
{
    public class EmployeePostingService : ServiceTemplate, IEmployeePostingService
    {
        public EmployeePostingService()
        {
        }

        private void MapObject(EmployeePosting oEmployeePosting, DataReader oReader)
        {
            base.SetObjectID(oEmployeePosting, oReader.GetInt32("HREmpPostingID").Value);
            oEmployeePosting.EmployeeID = oReader.GetInt32("EmployeeID", 0);
            oEmployeePosting.EffectDate = oReader.GetDateTime("postingDate").Value;
            oEmployeePosting.DepartmentID = oReader.GetInt32("departmentID", 0);
            oEmployeePosting.LocationID = oReader.GetInt32("locationID", 0);
            oEmployeePosting.DesignationID = oReader.GetInt32("designationID", 0);
            oEmployeePosting.CreatedBy = oReader.GetInt32("CreatedBy", 0);
            oEmployeePosting.CreatedDate = oReader.GetDateTime("CreationDate").Value;
            oEmployeePosting.ModifiedBy = oReader.GetInt32("ModifiedBy", 0);
            oEmployeePosting.ModifiedDate = oReader.GetDateTime("ModifiedDate");
            this.SetObjectState(oEmployeePosting, Ease.Core.ObjectState.Saved);
        }

        protected override T CreateObject<T>(DataReader oReader)
        {
            EmployeePosting oEmployeePosting = new EmployeePosting();
            MapObject(oEmployeePosting, oReader);
            return oEmployeePosting as T;
        }

        #region Service implementation

        public EmployeePosting GetRelatedData(EmployeePosting oEmployeePosting, TransactionContext tc)
        {
            //oEmployeePosting.Employee = (new EmployeeService()).Get(tc, oEmployeePosting.EmployeeID);
            //oEmployeePosting.Department = (new DepartmentService()).Get(tc, oEmployeePosting.DepartmentID);
            //oEmployeePosting.Designation = (new DesignationService()).Get(tc, oEmployeePosting.DesignationID, SystemInformation.CurrentSysInfo.PayrollTypeID);
            return oEmployeePosting;
        }

        public EmployeePosting Get(int id)
        {
            EmployeePosting oEmployeePosting = null;

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(EmployeePostingDA.Get(tc, id));
                if (oreader.Read())
                {
                    oEmployeePosting = this.CreateObject<EmployeePosting>(oreader);
                    oEmployeePosting = GetRelatedData(oEmployeePosting, tc);
                }

                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }

            return oEmployeePosting;
        }

        public EmployeePosting Get(int nEmpID, DateTime dEffectDate, int payrollTypeID)
        {
            EmployeePosting oEmployeePosting = null;

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(EmployeePostingDA.Get(tc, nEmpID, dEffectDate, payrollTypeID));
                if (oreader.Read())
                {
                    oEmployeePosting = this.CreateObject<EmployeePosting>(oreader);
                    oEmployeePosting = GetRelatedData(oEmployeePosting, tc);
                }

                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }

            return oEmployeePosting;
        }

        public List<EmployeePosting> GetByEmpID(int nID)
        {
            List<EmployeePosting> employeePostings = new List<EmployeePosting>();

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(EmployeePostingDA.GetEmpid(tc, nID));
                employeePostings = this.CreateObjects<EmployeePosting>(dr);
                dr.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);

                throw new ServiceException(e.Message, e);

                #endregion
            }

            return employeePostings;
        }


        public List<EmployeePosting> Get()
        {
            List<EmployeePosting> employeePostings = new List<EmployeePosting>();

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(EmployeePostingDA.Get(tc));
                employeePostings = this.CreateObjects<EmployeePosting>(dr);
                dr.Close();

                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);

                throw new ServiceException(e.Message, e);

                #endregion
            }

            return employeePostings;
        }

        public int Save(EmployeePosting oEmployeePosting)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                if (oEmployeePosting.IsNew)
                {
                    int id = tc.GenerateID("employeeposting", "hremppostingid");
                    base.SetObjectID(oEmployeePosting, id);
                    EmployeePostingDA.DeleteByPostingDate(tc, oEmployeePosting.EffectDate, oEmployeePosting.EmployeeID);
                    EmployeePostingDA.Insert(tc, oEmployeePosting);
                    EmployeeDA.UpdateEmpPosting(tc, oEmployeePosting);
                }
                else
                {
                    EmployeePostingDA.Update(tc, oEmployeePosting);
                    EmployeeDA.UpdateEmpPosting(tc, oEmployeePosting);
                }

                tc.End();

                return oEmployeePosting.ID;
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }
        }

        public void Delete(int id)
        {
            TransactionContext tc = null;
            try
            {
                EmployeePostingService osvr = new EmployeePostingService();
                EmployeePosting oposing = osvr.Get(id);
                tc = TransactionContext.Begin(true);

                EmployeePostingDA.Delete(tc, id);
                List<EmployeePosting> employeePostings = this.GetByEmpID(tc, oposing.EmployeeID);
                if (employeePostings == null || employeePostings.Count == 0)
                {
                    EmployeePosting oEmployeePosting = new EmployeePosting();
                    oEmployeePosting.DepartmentID = 0;
                    oEmployeePosting.DesignationID = 0;
                    oEmployeePosting.LocationID = 0;
                    oEmployeePosting.EmployeeID = oposing.EmployeeID;
                    EmployeeDA.UpdateEmpPosting(tc, oEmployeePosting);
                }
                else
                {
                    EmployeeDA.UpdateEmpPosting(tc, employeePostings[0]);
                }

                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }
        }

        public List<EmployeePosting> GetByEmpID(TransactionContext tc, int nID)
        {
            List<EmployeePosting> employeePostings = new List<EmployeePosting>();
            try
            {
                DataReader dr = new DataReader(EmployeePostingDA.GetEmpid(tc, nID));
                employeePostings = this.CreateObjects<EmployeePosting>(dr);
                dr.Close();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);

                throw new ServiceException(e.Message, e);

                #endregion
            }


            return employeePostings;
        }

        public void DeleteAll()
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                EmployeePostingDA.DeleteAll(tc);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }
        }

        public DataSet GetEmpCurrentPosting(DateTime EffectDate, int payrollTypeID)
        {
            DataSet oEmpPosting = new DataSet();
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                oEmpPosting = EmployeePostingDA.GetEmpCurrentPosting(tc, EffectDate, payrollTypeID);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }

            return oEmpPosting;
        }

        public DataSet GetEmpPrvPosting(DateTime EffectDate, int payrollTypeID)
        {
            DataSet oEmpPosting = new DataSet();
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                oEmpPosting = EmployeePostingDA.GetEmpPrvPosting(tc, EffectDate, payrollTypeID);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);

                #endregion
            }

            return oEmpPosting;
        }

        #endregion
    }
}