using BeWo.Data.Access;
using BeWo.Data.Entities;
using BeWo.Service.Invoicing;
using BS.Shared.Core;
using BS.Shared.DataContracts;
using BS.Shared.Extensions;
using BS.Shared.Services;
using System;
using System.Collections.Generic;
using System.Linq;

namespace ProIntegra.Invoicing
{
	
	public class CustomInvoiceCreation : InvoiceCreation
	{
		public override void SetInvoiceId(ServiceInvoice invoice)
		{
			base.SetInvoiceId(invoice);
		}

		public override InvoiceItem CreateInvoiceItem(ServiceRecordDC iServiceRecord, SupportConceptApprovalPeriod scap, Calculations calc)
		{
			var invoiceItem = base.CreateInvoiceItem(iServiceRecord, scap, calc);

			var crp = scap.CostBearer2SupportConcept.CostBearer.CostRatePeriods;
			if (crp != null && crp.Count > 0)
			{
				var minutesPerServiceUnit = crp.FirstOrDefault(c => c.CostRateType == BS.Shared.CostRatePeriodType.MinutesPerServiceUnit);
				var minsProFLS = minutesPerServiceUnit != null ? minutesPerServiceUnit.CostRateValue : 60;

				//invoiceItem.UnitCount = invoiceItem.UnitCount * 60 / minsProFLS;
				invoiceItem.GrossAmountTotal = invoiceItem.GrossAmountTotal * 60 / minsProFLS;
				invoiceItem.AmountTotal = invoiceItem.AmountTotal * 60 / minsProFLS;
			}

			return invoiceItem;
		}

		public override IList<InvoiceItem> CreateInvoiceItems(List<ServiceRecordDC> serviceRecordsInPeriod, DateTimeSpan invoicePeriod,
			SupportConceptApprovalPeriod scap, BS.Shared.Services.Calculations calc)
		{
			var list = base.CreateInvoiceItems(serviceRecordsInPeriod, invoicePeriod, scap, calc);

			var crp = scap.CostBearer2SupportConcept.CostBearer.CostRatePeriods;
			decimal minsProFLS = 60;
			if (crp != null && crp.Count > 0)
			{
				var minutesPerServiceUnit = crp.FirstOrDefault(c => c.CostRateType == BS.Shared.CostRatePeriodType.MinutesPerServiceUnit);
				minsProFLS = minutesPerServiceUnit.CostRateValue.Value;
			}

			if (scap.CostBearer2SupportConcept.CostBearer.Organisation.Name.ToLower().Contains("neu"))
			{
				List<InvoiceItem> toAdd = new List<InvoiceItem>();
				foreach (var item in list)
				{
					item.UnitCount *= 60 / minsProFLS;

					if (item.ItemDescription.ToLower().Contains("face to  face") || item.ItemDescription.ToLower().Contains("face to face"))
					{
						var count = serviceRecordsInPeriod.Where(sr => sr.ServiceDescription.Name.ToLower().Contains("face to  face")
						|| sr.ServiceDescription.Name.ToLower().Contains("face to face")).ToList().Count;

						toAdd.Add(CreateKontaktpauschalenItem(count, item.ItemPeriodStart, item.ItemPeriodEnd));
					}
				}
				if (toAdd.Count > 0)
					list.AddRange(toAdd);
			}

			return list;
		}

		public override void BerechneSummaryItemsSummen(List<InvoiceItem> newlist, bool addRateFactorToUnitCount)
		{
			// Rausfinden, ob FLS 50 statt 60 Minuten gehen
			//
			var oid = newlist.FirstOrDefault(i => i.SupportConceptApprovalPeriodOid != null).SupportConceptApprovalPeriodOid;
			SupportConceptApprovalPeriod ap = new SupportConceptApprovalPeriod();
			if (oid != null)
				ap = DAOFactory.GenericDAO.GetByID<SupportConceptApprovalPeriod>(oid.Value);

			List<CostRatePeriod> crp = null;
			if (ap != null)
				crp = ap.CostBearer2SupportConcept.CostBearer.CostRatePeriods.ToList();

			if (crp != null && crp.Count > 0)
            {
				var minutesPerServiceUnit = crp.FirstOrDefault(c => c.CostRateType == BS.Shared.CostRatePeriodType.MinutesPerServiceUnit);
				var minsProFLS = minutesPerServiceUnit != null ? minutesPerServiceUnit.CostRateValue : 60;

				foreach (InvoiceItem invoiceItem in newlist)
				{
					if (!invoiceItem.AmountPerUnit.HasValue)
					{
						invoiceItem.AmountPerUnit = 0;
					}
					invoiceItem.AmountPerUnit = Math.Round(invoiceItem.AmountPerUnit.Value, 2, MidpointRounding.AwayFromZero);

					if (!invoiceItem.UnitCount.HasValue)
					{
						invoiceItem.UnitCount = 0;
					}

					if (addRateFactorToUnitCount && invoiceItem.RateFactor.HasValue)
					{
						invoiceItem.UnitCount = (invoiceItem.UnitCount ?? 0) * ((invoiceItem.RateFactor + 100) / 100);
					}

					invoiceItem.UnitCount = Math.Round(invoiceItem.UnitCount.Value, 2, MidpointRounding.AwayFromZero);


					// Änderung: Eine FLS hat 50 statt 60 Minuten
					invoiceItem.AmountTotal = invoiceItem.AmountPerUnit * (invoiceItem.UnitCount * 60 / minsProFLS);
					invoiceItem.AmountTotal = Math.Round(invoiceItem.AmountTotal.Value, 2, MidpointRounding.AwayFromZero);

					invoiceItem.GrossAmountTotal = invoiceItem.AmountTotal;


					if (!addRateFactorToUnitCount && invoiceItem.RateFactor.HasValue)
					{
						invoiceItem.GrossAmountTotal *= (invoiceItem.RateFactor + 100) / 100;
					}
				}

			}
		}


		private InvoiceItem CreateKontaktpauschalenItem(decimal? unitCount, DateTime? itemPeriodStart, DateTime? itemPeriodEnd)
		{
			var ii = new InvoiceItem()
			{
				UnitCount = unitCount,
				ItemDescription = "Kontaktpauschale",
				UnitDescription = "Pauschale pro direktem Kontakt",
				AmountPerUnit = PauschalenHelper.PAUSCHALE,
				AmountTotal = PauschalenHelper.PAUSCHALE * unitCount,
				GrossAmountTotal = PauschalenHelper.PAUSCHALE * unitCount,
				ItemPeriodStart = itemPeriodStart,
				ItemPeriodEnd = itemPeriodEnd
			};

			return ii;
		}

	}
}