using Ease.Core.DataAccess;
using Ease.Core.Model;
using Ease.Core.Utility;
using HRM.BO;
using Payroll.BO;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static iTextSharp.text.pdf.AcroFields;

namespace HRM.DA
{
    public class LoanApplicationService : ServiceTemplate,ILoanApplicationService
    {
        #region Map Object
        private void MapObject(LoanApplication oLoanApplication, DataReader oReader)
        {
            SetObjectID(oLoanApplication, oReader.GetInt32("LoanAppID").Value);
            oLoanApplication.LoanAppID = oReader.GetInt32("LoanAppID").Value;
            oLoanApplication.LoanAppNO = oReader.GetInt32("LoanAppNO").Value;
            oLoanApplication.ApplyDate = oReader.GetDateTime("ApplyDate").Value;
            oLoanApplication.MemberID = oReader.GetInt32("MemberID").Value;
            oLoanApplication.EmployeeID = oReader.GetInt32("EmployeeID").Value;
            oLoanApplication.LoanAmount = oReader.GetDecimal("LoanAmount").Value;
            oLoanApplication.NoOfInstallment = oReader.GetInt32("NoOfInstallment").Value;
            oLoanApplication.InstallmentAmount = oReader.GetDecimal("InstallmentAmount").Value;
            oLoanApplication.Principal = oReader.GetDecimal("Principal").Value;
            oLoanApplication.Interest = oReader.GetDecimal("Interest").Value;
            oLoanApplication.purposeID = (enumLoanPurpose)oReader.GetInt32("purposeID").Value;
            oLoanApplication.Remarks = oReader.GetString("Remarks");
            oLoanApplication.FundJoining = oReader.GetDateTime("FundJoining").Value;
            oLoanApplication.BasicSalary = oReader.GetDecimal("BasicSalary").Value;
            oLoanApplication.GrossSalary = oReader.GetDecimal("GrossSalary").Value;
            oLoanApplication.PreviouslyTakenLoan = oReader.GetBoolean("PreviouslyTakenLoan").GetValueOrDefault();
            oLoanApplication.CreatedDate = oReader.GetDateTime("CreatedDate").Value;
            oLoanApplication.CreatedBy = oReader.GetInt32("CreatedBy").Value;
            oLoanApplication.AccountUserID = oReader.GetInt32("AccountUserID");
            oLoanApplication.AccountAppDate = oReader.GetDateTime("AccountAppDate");
            oLoanApplication.AccountsRemarks = oReader.GetString("AccountsRemarks");
            oLoanApplication.HRUserID = oReader.GetInt32("HRUserID");
            oLoanApplication.HRApproveDate = oReader.GetDateTime("HRApproveDate");
            oLoanApplication.HRApproveRemarks = oReader.GetString("HRApproveRemarks");
            oLoanApplication.TrusteesID = oReader.GetInt32("TrusteesID");
            oLoanApplication.TrusteesApproveDate = oReader.GetDateTime("TrusteesApproveDate");
            oLoanApplication.TrusteesApproveRemarks = oReader.GetString("TrusteesApproveRemarks");

            // Set the object state
            SetObjectState(oLoanApplication, Ease.Core.ObjectState.Saved);
        }

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

        #endregion

        #region Child Object Mapping

        private List<LoanAttachment> CreateLoanAttachments(DataReader oReader)
        {
            List<LoanAttachment> oLoanAttachments = new List<LoanAttachment>();
            while (oReader.Read())
            {
                LoanAttachment oLoanAttachment = new LoanAttachment();
                MapLoanAttachmentObject(oLoanAttachment, oReader);
                oLoanAttachments.Add(oLoanAttachment);
            }

            return oLoanAttachments;
        }

        private void MapLoanAttachmentObject(LoanAttachment oLoanAttachment, DataReader oReader)
        {
            SetObjectID(oLoanAttachment, oReader.GetInt32("LoanAttachmentID").Value);
            oLoanAttachment.LoanAppID = oReader.GetInt32("LoanAppID").Value;
            oLoanAttachment.LoanDocType = (enumLoanDocType)oReader.GetInt32("LoanDocType").Value;
            oLoanAttachment.FileName = oReader.GetString("FileName");
            oLoanAttachment.FileData = oReader.GetLob("FileData");
            oLoanAttachment.FileDataString = oReader.GetString("FileDataString");
            oLoanAttachment.uploadDate = oReader.GetDateTime("uploadDate").Value;
            oLoanAttachment.uploadBy = oReader.GetInt32("uploadBy").Value;
            SetObjectState(oLoanAttachment, Ease.Core.ObjectState.Saved);
        }
        #endregion

        #region Get

        public LoanApplication Get(int EmpId)
        {
            TransactionContext tc = null;
            try
            {
                var oLoanApplication = new LoanApplication();
                tc = TransactionContext.Begin();
                DataReader oreader = new DataReader(LoanApplicationDA.Get(tc, EmpId));
                if (oreader.Read())
                {
                    oLoanApplication = this.CreateObject<LoanApplication>(oreader);
                }

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

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

                #endregion
            }
        }

        public DataSet GetLoanApplicationData(int EmpID)
        {
            DataSet oGetLoanApplicationData = new DataSet();

            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                oGetLoanApplicationData = LoanApplicationDA.GetLoanApplicationData(tc, EmpID);
                tc.End();
            }
            catch (Exception e)
            {
                #region Handle Exception

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

                #endregion
            }

            return oGetLoanApplicationData;
        }
        #endregion

        #region Get All

        public List<LoanApplication> GetAll()
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin();
                DataReader dr = new DataReader(LoanApplicationDA.GetAll(tc));
                var oLoanApplication = this.CreateObjects<LoanApplication>(dr);
                dr.Close();
                tc.End();
                return oLoanApplication;
            }
            catch (Exception e)
            {
                #region Handle Exception

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

                #endregion
            }
        }

        #endregion

        #region Save

        public int Save(LoanApplication oLoanApplication)
        {
            TransactionContext tc = null;
            try
            {
                tc = TransactionContext.Begin(true);

                if (oLoanApplication.IsNew)
                {
                    int id = tc.GenerateID("LoanApplication", "LoanAppID");
                    base.SetObjectID(oLoanApplication, id);
                    LoanApplicationDA.Insert(tc, oLoanApplication);
                }
                else
                {
                    LoanApplicationDA.Update(tc, oLoanApplication);

                    #region Delete Childs

                    LoanApplicationDA.DeleteLoanAttachments(tc, oLoanApplication.LoanAppID);

                    #endregion
                }
                
                #region Insert Childs
                if (oLoanApplication.LoanAttachments != null && oLoanApplication.LoanAttachments.Count > 0)
                {
                    foreach (LoanAttachment item in oLoanApplication.LoanAttachments)
                    {
                        if (item != null)
                        {
                            if (item.ID <= 0 && item.FileData != null)
                            {
                                item.LoanAppID = oLoanApplication.LoanAppID;
                                base.SetObjectID(item, tc.GenerateID("LoanAttachment", "LoanAttachmentID"));
                                LoanApplicationDA.InsertLoanAttachment(item, oLoanApplication.ConnectionString);
                            }
                            else
                            {
                                item.LoanAppID = oLoanApplication.LoanAppID;
                                item.FileData = null;
                                item.FileName = null;
                                base.SetObjectID(item, tc.GenerateID("LoanAttachment", "LoanAttachmentID"));
                                LoanApplicationDA.InsertLoanAttachment(item, oLoanApplication.ConnectionString);
                            }
                        }

                    }
                }


                #endregion

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

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

                #endregion
            }
        }
        #endregion Save

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

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

                #endregion
            }
            finally
            {
                tc.End();
            }
        }

        #endregion
    }
}