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

namespace HRM.DA
{
    public class LeavePlanService : ServiceTemplate, ILeavePlanService
    {
        #region Private functions and declaration

        public LeavePlanService()
        {
        }

        private void MapObject(LeavePlan oLeavePlan, DataReader oReader)
        {
            base.SetObjectID(oLeavePlan, oReader.GetInt32("LeavePlanID").Value);

            oLeavePlan.EmpID = oReader.GetInt32("EmployeeID").Value;
            oLeavePlan.LeaveID = oReader.GetString("LeaveID") == null ? 0 : 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.Core.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();

            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
            }

            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 Insert Leave Plan due to " + e.Message, e);

                #endregion
            }
        }


        public void Save(List<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);
                        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 Insert 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 Insert Leave Plan due to " + e.Message, e);

                #endregion
            }
        }

        public void UpdateLeavePlanSubmit(List<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 Insert Leave Plan due to " + e.Message, e);

                #endregion
            }
        }

        #region Delete Service

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

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

                #endregion
            }
        }

        #endregion

        public List<LeavePlan> Get(int empID)
        {
            List<LeavePlan> oLeavePlans = new List<LeavePlan>();
            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
            }

            return oLeavePlans;
        }

        public List<LeavePlan> GetAllData()
        {
            List<LeavePlan> oLeavePlans = new List<LeavePlan>();
            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
            }

            return oLeavePlans;
        }

        public List<LeavePlan> GetPlanData(int empID, int leaveYear)
        {
            List<LeavePlan> oLeavePlans = new List<LeavePlan>();

            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
            }

            return oLeavePlans;
        }

        public List<LeavePlan> GetByMonthRange(int empID, DateTime dFromDate, DateTime dToDate)
        {
            List<LeavePlan> oLeavePlans = new List<LeavePlan>();

            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
            }

            return oLeavePlans;
        }

        #endregion
    }
}