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
{
    #region ProcessItem Service
    [Serializable]
    public class ProcessItemService : ServiceTemplate, IProcessItemService
    {
        #region Private functions and declaration
        Cache _cache = new Cache(typeof(ProcessItem));

        #endregion
        public ProcessItemService() { }

        private void MapObject(ProcessItem oProcessItem, DataReader oReader)
        {
            //base.SetObjectID(oProcessItem, oReader.GetID("ProcessItemID"));
            oProcessItem.ItemCode = oReader.GetInt32("itemCode").Value;
            oProcessItem.DefaultDescription = oReader.GetString("defaultDescription");
            oProcessItem.UserDescription = oReader.GetString("userDescription");
            oProcessItem.Position = oReader.GetInt32("position").Value;
            oProcessItem.ItemGroup = oReader.GetInt32("itemGroup").Value;
            this.SetObjectState(oProcessItem, Ease.CoreV35.ObjectState.Saved);
        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            ProcessItem oProcessItem = new ProcessItem();
            MapObject(oProcessItem, oReader);
            return oProcessItem as T;
        }
        protected ProcessItem CreateObject(DataReader oReader)
        {
            ProcessItem oProcessItem = new ProcessItem();
            MapObject(oProcessItem, oReader);
            return oProcessItem;
        }
        #region Service implementation
        public ProcessItem Get(ID id)
        {
            ProcessItem oProcessItem = new ProcessItem();
            #region Cache Header
            oProcessItem = _cache["Get", id] as ProcessItem;
            if (oProcessItem != null)
                return oProcessItem;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(ProcessItemDA.Get(tc, id));
                if (oreader.Read())
                {
                    oProcessItem = this.CreateObject<ProcessItem>(oreader);
                }
                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
            }
            #region Cache Footer
            _cache.Add(oProcessItem, "Get", id);
            #endregion
            return oProcessItem;
        }

        public ObjectsTemplate<ProcessItem> Get()
        {
            #region Cache Header

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

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();

                DataReader dr = new DataReader(ProcessItemDA.Get(tc));
                processItems = this.CreateObjects<ProcessItem>(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(processItems, "Get");

            #endregion

            return processItems;
        }

        public ObjectsTemplate<ProcessItem> GetForTHeadGroup()
        {
            #region Cache Header

            ObjectsTemplate<ProcessItem> processItems = _cache["GetForTHeadGroup"] as ObjectsTemplate<ProcessItem>;
            if (processItems != null)
                return processItems;

            #endregion

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();

                DataReader dr = new DataReader(ProcessItemDA.GetForTHeadGroup(tc));
                processItems = this.CreateObjects<ProcessItem>(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(processItems, "GetForTHeadGroup");

            #endregion

            return processItems;
        }

        public ID Save(ProcessItem oProcessItem)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                if (oProcessItem.IsNew)
                {
                    int id = tc.GenerateID("ProcessItem", "ProcessItemID");
                    base.SetObjectID(oProcessItem, ID.FromInteger(id));
                    ProcessItemDA.Insert(tc, oProcessItem);
                }
                else
                {
                    ProcessItemDA.Update(tc, oProcessItem);
                }
                tc.End();
                return oProcessItem.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(ID id)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                ProcessItemDA.Delete(tc, id);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
        }
        #endregion
    }
    #endregion
}