using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using BeWo.Data.Access;
using BeWo.Data.Entities;
using BeWo.Service.DCEntityMapper;
using BeWo.Service.Invoicing;
using BeWo.Service.Plugins;
using BS.Shared;
using BS.Shared.Core;
using BS.Shared.DataContracts;
using BS.Shared.Extensions;
using BS.Shared.Services;
using DevExpress.Data.Helpers;

namespace TeamPfeil.Invoicing
{
	public class CustomInvoiceCreation : InvoiceCreation
	{ 
        // Noch die Prüfung auf Übererbringung wieder einfügen

	    public override void SetInvoiceId(ServiceInvoice invoice)
	    {
	        invoice.InvoiceBase.InvoiceId = "Qualifikation";
	        invoice.InvoiceBase.InvoiceTypeText = "RechnungQualifikation";
	    }

        public override void SetInvoiceItems(ServiceInvoice invoice,
           ServiceInvoicePeriod serviceInvoicePeriod,
           SupportConceptApprovalPeriodDC supportConceptApprovalPeriod,
           CostBearer2SupportConcept cb2sc,
           DateTimeSpan invoicePeriod,
           List<ServiceRecordDC> serviceRecords)
        {
            Calculations calc = PluginLoader.FindClass<Calculations>(_SpecificID) ?? Calculations.GetInstance(_SpecificID);

            List<ServiceRecordDC> serviceRecordsInPeriod = serviceRecords.Where(
                i =>
                {
                    bool valid = i.Start.Value.InBetween(serviceInvoicePeriod.Start.Value,
                        serviceInvoicePeriod.End.Value, true);

                    if (valid && serviceInvoicePeriod.SupportConceptApprovalPeriod != null && serviceInvoicePeriod.SupportConceptApprovalPeriod.ServiceCategory != null)
                        valid = serviceInvoicePeriod.SupportConceptApprovalPeriod.ServiceCategory.Oid ==
                                i.ServiceDescription.Category.ServiceCategoryOid;
                    return valid;
                }).ToList();

            if (serviceRecordsInPeriod.Count > 0)
            {
                var absenceTimes = MapperFactory.AbsenceTimeDC_AbsenceTime.MapToNewDCs(cb2sc.SupportConcept.Customer.AbsenceTimes);
                Dictionary<DateTimeSpan, decimal> span2Hours = calc.GetAbsencesTimesNotBillable(absenceTimes);

                serviceInvoicePeriod.HoursNotBillableAbsence +=
                    calc.GetHoursNotBillableDueToAbsenceTimes(supportConceptApprovalPeriod,
                        cb2sc.CostBearer.CostRatePeriods.MapToNewDCs(),
                        serviceRecordsInPeriod,
                        span2Hours,
                        true, true);

                var itemList = CreateInvoiceItems(serviceRecordsInPeriod, invoicePeriod, serviceInvoicePeriod.SupportConceptApprovalPeriod, calc);
                serviceInvoicePeriod.InvoiceItemList.AddRange(itemList);
            }
        }



        public override InvoiceItem CreateInvoiceItem(ServiceRecordDC iServiceRecord, SupportConceptApprovalPeriod scap, Calculations calc)
        {
            var invoiceItem = new InvoiceItem();
            //Dictionary<long, string> empQuali = new Dictionary<long, string>();


            BillingData bd = calc.GetBillingData(iServiceRecord);

            decimal stundensatz = 0;
            var qOid = iServiceRecord.Employee.ValueListEntries
            .Where(i => i.Value == ValueListEntryType.StaffQualificationsType)            
            .Select(i => i.Key)
            .ToList();
            foreach (var qualiOid in qOid)
            {
                stundensatz = GetStundensatz(scap.CostBearer2SupportConcept, qualiOid, iServiceRecord.Start);
                if (qualiOid == 2118) //477) 
                {
                    invoiceItem.ItemDescription = "Qualifikationsniveau 1";
                }
                else if (qualiOid == 2119) //478)
                {
                    invoiceItem.ItemDescription = "Qualifikationsniveau 2";
                }
                else if (qualiOid == 2120)
                {
                    invoiceItem.ItemDescription = "Qualifikationsniveau 3";
                }
                if (qualiOid == 2121)
                {
                    invoiceItem.ItemDescription = "Qualifikationsniveau 4";
                }
            }

            if (stundensatz != 0)
            {
                invoiceItem.AmountPerUnit = stundensatz;
                invoiceItem.AmountTotal = stundensatz * bd.UnitCount;
                invoiceItem.GrossAmountTotal = stundensatz * bd.UnitCount;
            }
            else
            {
                invoiceItem.AmountPerUnit = bd.AmountPerUnit;
                invoiceItem.AmountTotal = bd.AmountTotal;
                invoiceItem.GrossAmountTotal = bd.GrossAmountTotal;
                invoiceItem.ItemDescription = iServiceRecord.ServiceDescription.Name;
            }
            
            invoiceItem.UnitCount = bd.UnitCount;
            invoiceItem.ItemPeriodStart = bd.BillingPeriodStart;
            invoiceItem.ItemPeriodEnd = bd.BillingPeriodEnd;
            invoiceItem.RateFactor = bd.RateFactor;
            invoiceItem.AccountingInterval = bd.AccountingInterval;
             //iServiceRecord.Employee + " - " + iServiceRecord.ServiceDescription.Name;
            invoiceItem.ServiceRecord = DAOFactory.GenericDAO.LoadByID<ServiceRecord>(iServiceRecord.ServiceRecordOid.Value);

            return invoiceItem;
        }

        private decimal GetStundensatz(CostBearer2SupportConcept c2s, long vleOid, DateTime? date)
        {

            if (c2s.CostBearer.CostRatePeriods != null)
            {
                //Valuelistentryoid:
                //2118 Q 1 Sozialpädagoge
                //2119 Q 2 Fachkraft
                //2120 Qualifizierte Hilfskraft
                //2121 Unqualifiziert Hilfskraft

                var crpList = MapperFactory.CostRatePeriodDC_CostRatePeriod.MapToNewDCs(c2s.CostBearer.CostRatePeriods);
                var cp = crpList.GetCostRatePeriodForDate(CostRatePeriodType.HourlyRate, (DateTime)date, vleOid);

                if (cp != null && cp.CostRateValue.HasValue)
                {
                    return cp.CostRateValue.Value;
                }
            }

            return 0;
        }

        public override string GetSummaryItemKey(SupportConceptApprovalPeriod scap, InvoiceItem iitem, bool summaryPerMonth)
        {
            String key = String.Format("{0}_{1}", iitem.AmountPerUnit, iitem.ItemDescription);
            if (summaryPerMonth)
            {
                key = String.Format("{0}_{1}_{2:yyyyMM}", iitem.AmountPerUnit, iitem.ItemDescription, iitem.ItemPeriodStart);
            }

            return key;
        }
    }
}