using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Ease.CoreV35;
using Ease.CoreV35.Model;
using Ease.CoreV35.Caching;
using System.Data;
using System.Collections;

namespace Payroll.BO
{
    [Serializable]
    public class MonthEnd:BasicBaseObject 
    {
        private DateTime _month;
        private DateTime _dPaymentDate;
        private ObjectsTemplate<SalaryMonthly> _salaryMonthlys;
        private ObjectsTemplate<PFTransaction> _pfTransactions;
        private ObjectsTemplate<LoanSchedule> _loanShedules;
        private ObjectsTemplate<IncomeTax> _incometaxes;
        private ObjectsTemplate<ESBDefinition> _oESBDefinitions = null;
        private ObjectsTemplate<ESBProvision> _oESBProvisions = null;
        ObjectsTemplate<SalaryProcess> _oSProcess = null;

        public MonthEnd()
        {

        }
        private bool Validation()
        {
            
            return false;
        }
        public void DoMonthEnd(DateTime month, ObjectsTemplate<SalaryMonthly> salaries,DateTime dPaymentDate)
        {
            _dPaymentDate = dPaymentDate;
            _salaryMonthlys = salaries;
            _loanShedules = new ObjectsTemplate<LoanSchedule>();
            _month = month;
            _oSProcess = SalaryProcess.Get(month);
            Process();
            SalaryProcess sprocess = new SalaryProcess();           
            SalaryProcess.Service.MonthEnd(month,_pfTransactions,_loanShedules,_oESBProvisions,Payroll.BO.SystemInformation.CurrentSysInfo.PayrollTypeID.Integer);
            SystemInformation sinfo = SystemInformation.Get();
            sinfo.NextPayProcessDate = month;
            SystemInformation.Service.Update(sinfo);
        }

        private void Process()
        {
            _oESBDefinitions = new ObjectsTemplate<ESBDefinition>();
            _oESBProvisions = new ObjectsTemplate<ESBProvision>();
            List<PFException> oPfExceptions = PFException.Get();
            List<Employee> oEmployees = Employee.GetAllEmps();
            ESBProvision oESBProvision = null;
            ESBDefinition oESBDefinition = null;
            DataSet oDS=null;
            bool doProvision = ConfigurationManager.GetBoolValue("gratuity", "doprovision", EnumConfigurationType.Logic);
            if (doProvision)
            {
                oDS = new DataSet();
                //oDS = ESBProvision.GetCumulativeProv(_month);
                _oESBDefinitions = ESBDefinition.Get();
            }
            _pfTransactions = new ObjectsTemplate<PFTransaction>();

            foreach(SalaryProcess oSP in _oSProcess)
            {
                oSP.PaymentDate = _dPaymentDate;
                oSP.MonthEndDate = Payroll.BO.SystemInformation.CurrentSysInfo.NextPayProcessDate;
                oSP.Update(oSP);
            }

            foreach (SalaryMonthly item in _salaryMonthlys)
            {
                Employee oEmp = oEmployees.FirstOrDefault(x => x.ID == item.EmployeeID);

               
                if (oEmp != null && oEmp.PFMemberType == EnumPFMembershipType.Live)
                {
                    //_pfTransactions = new ObjectsTemplate<PFTransaction>();
                    #region  PF transaction

                #region EPF

                PFTransaction epf = new PFTransaction();
                epf.EmployeeID = item.EmployeeID;
                epf.MonthDate = _month;
                epf.TranAmount = item.GetDeductAmount(EnumSalaryItemCode.PF_Contribution, (int)EnumSalaryItemCode.PF_Contribution);
                epf.TranType = EnumPFTranType.PFAmount;
                epf.SetAuditTrail();
                _pfTransactions.Add(epf);

                #endregion

                #region CPF

                PFException oEmpPFException = oPfExceptions.FirstOrDefault(x => x.EmployeeID ==  item.Employee.ID);
                
                PFTransaction cpf = new PFTransaction();
                cpf.EmployeeID = item.EmployeeID;
                cpf.MonthDate = _month;

                if (oEmpPFException != null) // && oEmpPFException.StartDate <= item.SalaryMonth) // Dont open this
                {
                    cpf.TranAmount = oEmpPFException.CPFPercent == 0 ? oEmpPFException.CPFAmount : GlobalFunctions.Round(item.ThisMonthBasic * (oEmpPFException.CPFPercent / 100));   
                }
                else
                {
                    cpf.TranAmount = item.GetDeductAmount(EnumSalaryItemCode.PF_Contribution, (int)EnumSalaryItemCode.PF_Contribution);
                }

                cpf.TranType = EnumPFTranType.CPFAmount;
                cpf.SetAuditTrail();
                    
                _pfTransactions.Add(cpf);

                #endregion

                #endregion  PF transaction
                }
                #region Loan Installment payment update
                List<SalaryMonthlyDetail> loans = item.Details.FindAll(delegate(SalaryMonthlyDetail detail)
                {
                    return detail.ItemCode == EnumSalaryItemCode.Loan_Monthly_Installment;
                });
                if (loans != null)
                {
                    foreach (SalaryMonthlyDetail loan in loans)
                    {
                        LoanSchedule laonshedule = new LoanSchedule();
                        laonshedule.PaymentDate = _month;
                        laonshedule.setId(loan.SupportID);
                        _loanShedules.Add(laonshedule);
                    }
                }
                #endregion Loan Installment payment update

                #region Gratuity Provision
                if (doProvision)
                {
                    oESBDefinition = ESBDefinition.Get(_oESBDefinitions, item.Employee);
                    if (oESBDefinition == null) throw new ServiceException("gratuity rule not found for the employee"); // add employee NO and Name
                   
                    oESBProvision = new ESBProvision();
                    oESBDefinition.CalculateProvisionAmount(item.Employee, item.Details, oESBProvision, oDS);
                    oESBProvision.EmployeeID = item.EmployeeID;
                    oESBProvision.SalaryMonthlyID = item.ID;
                    oESBProvision.ProcessMonthDate = item.SalaryMonth;
                    oESBProvision.UserID = Payroll.BO.User.CurrentUser.UserAccessTypes[0].PayrollTypeObj.ID;
                    _oESBProvisions.Add(oESBProvision);
                }
                #endregion
            }

            #region PF Exception 
            
            foreach (PFException oEmpPFException in oPfExceptions)
            {
                Employee oEmp = oEmployees.FirstOrDefault(x => x.ID == oEmpPFException.EmployeeID);

                if (oEmp == null)
                    continue;

                if (_salaryMonthlys.Any(x => x.EmployeeID == oEmpPFException.EmployeeID))
                {   
                    if (oEmp.PFMemberType == EnumPFMembershipType.Live)
                        continue;
                }
                
                //if (oEmpPFException.StartDate > _month)
                //    continue;

                #region EPF
                
                PFTransaction epf = new PFTransaction();
                epf.EmployeeID = oEmpPFException.EmployeeID;
                epf.MonthDate = _month;
                epf.TranAmount = oEmpPFException.EPFPercent == 0 ? oEmpPFException.EPFAmount : GlobalFunctions.Round(oEmp.BasicSalary * (oEmpPFException.EPFPercent / 100));
                epf.TranType = EnumPFTranType.PFAmount;
                epf.SetAuditTrail();
                _pfTransactions.Add(epf);

                #endregion

                #region CPF

                PFTransaction cpf = new PFTransaction();
                cpf.EmployeeID = oEmpPFException.EmployeeID;
                cpf.MonthDate = _month;
                cpf.TranAmount = oEmpPFException.CPFPercent == 0 ? oEmpPFException.CPFAmount : GlobalFunctions.Round(oEmp.BasicSalary * (oEmpPFException.CPFPercent / 100));
                cpf.TranType = EnumPFTranType.CPFAmount;
                cpf.SetAuditTrail();
                _pfTransactions.Add(cpf);

                #endregion

            }

            #endregion
        }
    }
}