using System;
using System.Data;
using System.Linq;
using Ease.CoreV35;
using Ease.CoreV35.Model;
using Ease.CoreV35.DataAccess;
using System.Collections.Generic;
using Payroll.BO;
using Ease.CoreV35.Caching;

namespace Payroll.Service
{
    public class LeavePlanService : ServiceTemplate, ILeavePlanService
    {
         #region Private functions and declaration
        Cache _cache = new Cache(typeof(LeavePlan));

        public LeavePlanService() { }

        private void MapObject(LeavePlan oLeavePlan, DataReader oReader)
        {
            base.SetObjectID(oLeavePlan, oReader.GetID("LeavePlanID"));

            oLeavePlan.EmpID = oReader.GetInt32("EMPLOYEEID").Value;
            oLeavePlan.LeaveID = ID.FromInteger(oReader.GetInt32("LeaveID").Value);
            oLeavePlan.LeaveYear = oReader.GetInt32("LeaveYear").Value;
            oLeavePlan.PlanFromDate = oReader.GetDateTime("PlanFromDate").Value;
            oLeavePlan.PlanToDate = oReader.GetDateTime("PlanToDate").Value;
            oLeavePlan.EntryDate = oReader.GetDateTime("EntryDate").Value;
            oLeavePlan.IsApproved = oReader.GetBoolean(("IsApproved")).Value;
            oLeavePlan.IsSubmitted = oReader.GetBoolean("IsSubmitted").Value;
            this.SetObjectState(oLeavePlan, Ease.CoreV35.ObjectState.Saved);
            //this.SetObjectState(oLeave, ObjectState.Saved);

        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            LeavePlan oLeavePlan = new LeavePlan();
            MapObject(oLeavePlan, oReader);
            return oLeavePlan as T;
        }
        private LeavePlan CreateObject(DataReader oReader)
        {
            LeavePlan oLeavePlan = new LeavePlan();
            MapObject(oLeavePlan, oReader);
            return oLeavePlan;
        }

        #endregion

        #region Service implementation
      

        public LeavePlan GetID(int id)
        {
            LeavePlan oLeavePlan = new LeavePlan();
            #region Cache Header
            oLeavePlan = (LeavePlan)_cache["Get", id];
            if (oLeavePlan != null)
                return oLeavePlan;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(LeavePlanDA.GetID(tc, id));
                if (oreader.Read())
                {
                    oLeavePlan = this.CreateObject<LeavePlan>(oreader);
                }
                oreader.Close();
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException("Failed to Get Leave", e);
                #endregion
            }
            #region Cache Footer
            _cache.Add(oLeavePlan, "Get", id);
            #endregion
            return oLeavePlan;
        }

        public bool IsEmpIDExist(int empID, int leaveYear)
        {
            TransactionContext tc = null;

            bool result = false;
            try
            {
                tc = TransactionContext.Begin();
                result = LeavePlanDA.IsEmpIDExist(empID, leaveYear, tc);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException("Duplicate code is not allowed.");
                #endregion
            }
            return result;
        }
        public bool IsEmpApproved(int empID, int leaveYear, DateTime FormDate, DateTime ToDate, bool isApprove)
        {
            TransactionContext tc = null;

            bool result = false;
            try
            {
                tc = TransactionContext.Begin();
                result = LeavePlanDA.IsEmpApproved(empID, leaveYear, FormDate, ToDate, isApprove, tc);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException("Can't Collect Employee!!!");
                #endregion
            }
            return result;
        }
        public void UpdateApprove(int empID, int leaveYear, DateTime FormDate, DateTime ToDate, bool isApproved)
        {
            LeavePlan leavePlan = null;
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);

                LeavePlanDA.UpdateApprove(tc, empID, leaveYear, FormDate, ToDate, isApproved);

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

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new Exception("Failed to Save Leave Plan due to " + e.Message, e);

                #endregion
            }
        }


        
        public void Save(ObjectsTemplate<LeavePlan> oLeavePlans)
        {
            LeavePlan leavePlan = null;
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                foreach (LeavePlan oLeavePlan in oLeavePlans)
                {
                    if (oLeavePlan.IsNew)
                    {
                        int id = tc.GenerateID("LeavePlan", "LeavePlanID");
                        base.SetObjectID(oLeavePlan, ID.FromInteger(id));
                        LeavePlanDA.Insert(tc, oLeavePlan);
                    }
                    else
                    {
                        LeavePlanDA.Update(tc, oLeavePlan);
                    }
                }
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new Exception("Failed to Save Leave Plan due to " + e.Message, e);

                #endregion
            }
        }
        public void UpDateLeavePlan(LeavePlan oLeaveItem, int PlanID)
        {
            LeavePlan leavePlan = null;
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                LeavePlanDA.UpDateLeavePlan(tc, oLeaveItem, PlanID);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new Exception("Failed to Save Leave Plan due to " + e.Message, e);

                #endregion
            }
        }
        public void UpdateLeavePlanSubmit(ObjectsTemplate<LeavePlan> oLeaveItems)
        {
            TransactionContext tc = null;
            try
            {

                tc = TransactionContext.Begin(true);
                foreach (LeavePlan oItem in oLeaveItems)
                {
                    oItem.IsSubmitted = true;
                    LeavePlanDA.UpdateLeavePlanSubmit(tc, oItem);
                }

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

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new Exception("Failed to Save Leave Plan due to " + e.Message, e);

                #endregion
            }
        }

        #region Delete Service

        public void Delete(ID id)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                LeavePlanDA.Delete(id.Integer, tc);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new Exception("Failed to Save LeavePlan due to " + e.Message, e);

                #endregion
            }
        }
        #endregion
        public ObjectsTemplate<LeavePlan> Get(int empID)
        {
            #region Cache Header

            ObjectsTemplate<LeavePlan> oLeavePlans = _cache["Get", empID] as ObjectsTemplate<LeavePlan>;
            if (oLeavePlans != null)
                return oLeavePlans;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LeavePlanDA.Get(tc, empID));
                oLeavePlans = this.CreateObjects<LeavePlan>(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
            }
            #region Cache Footer
            _cache.Add(oLeavePlans, "Get", empID);
            #endregion
            return oLeavePlans;            
        }

        public ObjectsTemplate<LeavePlan> GetAllData()
        {
            #region Cache Header

            ObjectsTemplate<LeavePlan> oLeavePlans = _cache["Get"] as ObjectsTemplate<LeavePlan>;
            if (oLeavePlans != null)
                return oLeavePlans;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LeavePlanDA.GetAllData(tc));
                oLeavePlans = this.CreateObjects<LeavePlan>(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
            }
            #region Cache Footer
            _cache.Add(oLeavePlans, "Get");
            #endregion
            return oLeavePlans;        
        }

        public ObjectsTemplate<LeavePlan> GetPlanData(int empID, int leaveYear)
        {            
            #region Cache Header

            ObjectsTemplate<LeavePlan> oLeavePlans = _cache["Get", empID, leaveYear] as ObjectsTemplate<LeavePlan>;
            if (oLeavePlans != null)
                return oLeavePlans;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LeavePlanDA.GetPlanData(tc, empID, leaveYear));
                oLeavePlans = this.CreateObjects<LeavePlan>(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
            }
            #region Cache Footer
            _cache.Add(oLeavePlans, "Get", empID, leaveYear);
            #endregion
            return oLeavePlans;   
        }

        public ObjectsTemplate<LeavePlan> GetByMonthRange(int empID, DateTime dFromDate, DateTime dToDate)
        {            
            #region Cache Header

            ObjectsTemplate<LeavePlan> oLeavePlans = _cache["Get", empID, dFromDate, dToDate] as ObjectsTemplate<LeavePlan>;
            if (oLeavePlans != null)
                return oLeavePlans;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LeavePlanDA.GetByMonthRange(tc, empID, dFromDate, dToDate));
                oLeavePlans = this.CreateObjects<LeavePlan>(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
            }
            #region Cache Footer
            _cache.Add(oLeavePlans, "Get", empID, dFromDate, dToDate);
            #endregion
            return oLeavePlans;
        }

        #endregion
    }
}