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

        #endregion
        public CategoryService() { }

        private void MapObject(Category oCategory, DataReader oReader)
        {
            base.SetObjectID(oCategory, oReader.GetID("CategoryID"));
            oCategory.Code = oReader.GetString("code");
            oCategory.Name = oReader.GetString("description");
            oCategory.Sequence = oReader.GetInt32("SequenceNo").Value;
            oCategory.Status = (EnumStatus)oReader.GetInt32("Status").Value;
            oCategory.CreatedBy = oReader.GetID("CreatedBy");
            oCategory.CreatedDate = oReader.GetDateTime("CreationDate").Value;
            oCategory.ModifiedBy = oReader.GetID("ModifiedBy");
            oCategory.ModifiedDate = oReader.GetDateTime("ModifiedDate");
            oCategory.WagesType = (EnumWagesType)oReader.GetInt32("WagesType").Value;
            this.SetObjectState(oCategory, Ease.CoreV35.ObjectState.Saved);
        }
        protected override T CreateObject<T>(DataReader oReader)
        {
            Category oCategory = new Category();
            MapObject(oCategory, oReader);
            return oCategory as T;
        }
        protected Category CreateObject(DataReader oReader)
        {
            Category oCategory = new Category();
            MapObject(oCategory, oReader);
            return oCategory;            
        }
        #region Service implementation

        public string GetNextCode()
        {
            TransactionContext tc = null;
            string _code = "";
            try
            {
                tc = TransactionContext.Begin();
                _code = GlobalFunctionService.GetMaxCode(tc, "category", "codeautogenerate", "Category", "Code");
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
            return _code;
        }


        public Category Get(ID id)
        {
            Category oCategory = new Category();
            #region Cache Header
            oCategory = _cache["Get", id] as Category;
            if (oCategory != null)
                return oCategory;
            #endregion
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(CategoryDA.Get(tc, id));
                if (oreader.Read())
                {
                    oCategory = this.CreateObject<Category>(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(oCategory, "Get", id);
            #endregion
            return oCategory;
        }

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

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

            #endregion

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

                DataReader dr = new DataReader(CategoryDA.Get(tc));
                categorys = this.CreateObjects<Category>(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(categorys, "Get");

            #endregion

            return categorys;
        }


        public ObjectsTemplate<Category> Get(EnumStatus status)
        {
            #region Cache Header

            ObjectsTemplate<Category> categorys = _cache["Get",status] as ObjectsTemplate<Category>;
            if (categorys != null)
                return categorys;

            #endregion

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

                DataReader dr = new DataReader(CategoryDA.Get(tc, status));
                categorys = this.CreateObjects<Category>(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(categorys, "Get",status);

            #endregion

            return categorys;
        }
        public ID Save(Category oCategory)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);
                int codeLength = 3;
                if (oCategory.IsNew)
                {

                    int id = tc.GenerateID("Category", "CategoryID");
                    base.SetObjectID(oCategory, ID.FromInteger(id));

                    int seqNo = tc.GenerateID("Category", "SequenceNo");
                    oCategory.Sequence = seqNo;
                    CategoryDA.Insert(tc, oCategory);
                }
                else
                {
                    CategoryDA.Update(tc, oCategory);
                }
                tc.End();
                return oCategory.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);
                CategoryDA.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
            }
        }

        public DataSet GetAgeRange(int fromyear, int toyear)
        {
            DataSet oAgeRanges = new DataSet();

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                oAgeRanges = CategoryDA.GetAgeRange(tc,fromyear,toyear);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
            return oAgeRanges;
        }
        #endregion

        //For excel Upload
        public static void SaveForUpload(TransactionContext tc, ObjectsTemplate<Category> categories)
        {
           try
            {
                foreach (Category oCategory in categories)
                {
                    if (oCategory.IsNew)
                    {
                        int seqNo = tc.GenerateID("Category", "SequenceNo");
                        oCategory.Sequence = seqNo;
                        bool isAutoGenerated = ConfigurationManager.GetBoolValue("category", "codeautogenerate", EnumConfigurationType.Logic);
                        if (isAutoGenerated == true)
                            oCategory.Code = GlobalFunctionService.GetMaxCode(tc, "category", "codeautogenerate", "Category", "Code");
                        oCategory.CreatedBy = User.CurrentUser.ID;
                        oCategory.CreatedDate = DateTime.Now;
                        CategoryDA.Insert(tc, oCategory);
                    }
                    else
                    {
                        oCategory.ModifiedBy  = User.CurrentUser.ID;
                        oCategory.ModifiedDate  = DateTime.Now;
                        CategoryDA.Update(tc, oCategory);
                    }
                }
            }
            catch (Exception e)
            {
                #region Handle Exception
                if (tc != null)
                    tc.HandleError();
                ExceptionLog.Write(e);
                throw new ServiceException(e.Message, e);
                #endregion
            }
        }
    }
    #endregion
}