public IEnumerable <EndorsementDto> GetEndorsements(int billId)
{
var billOfExchange = _billsOfExchangeService.GetById(billId);
if (billOfExchange.DrawerId == billOfExchange.BeneficiaryId)
{
throw new ApplicationException("Bill of exchange has same drawer as beneficiary.");
}
var endorsements = _repository.GetByBillIds(new[] { billId }).First().ToList();
var list = new LinkedList <Endorsement>();
Endorsement currentEndorsement = null;
while (currentEndorsement == null ||
endorsements.Any(x => x.PreviousEndorsementId == currentEndorsement.Id))
{
currentEndorsement = currentEndorsement == null
? GetFirstEndorsement(endorsements)
: endorsements.FirstOrDefault(x => x.PreviousEndorsementId == currentEndorsement.Id);
if (list.Any(x => x.Id == currentEndorsement.Id))
{
throw new ApplicationException(
"Indosament data inconsistency - circle reference between endorsements");
}
if (currentEndorsement.NewBeneficiaryId == billOfExchange.BeneficiaryId)
{
throw new ApplicationException(
$"Endorsement has the same new beneficiary party as bill of exchange");
}
list.AddLast(currentEndorsement);
}
if (list.Count != endorsements.Count)
{
throw new ApplicationException("List of endorsement is not linked.");
}
var newBeneficiaries = list.Select(x => x.NewBeneficiaryId).ToList();
if (newBeneficiaries.Count() != newBeneficiaries.Distinct().Count())
{
throw new ApplicationException("Indosament data inconsistenci - same new beneficiary id");
}
return(MapToDto(list));
}
public IEnumerable <BillOfExchangeDto> GetBillsByOwner(int ownerId)
{
var ownedBills = new List <BillOfExchange>();
List <BillOfExchange> billsByBeneficiaryId =
billOfExchangeRepository.GetByBeneficiaryIds(new List <int>()
{
ownerId
})
.SelectMany(x => x ?? new List <BillOfExchange>()).ToList();
ownedBills.AddRange(GetBillsWithoutEndorsements(billsByBeneficiaryId));
ownedBills.AddRange(GetOwnedBills(ownerId));
foreach (BillOfExchange bill in ownedBills)
{
ValidateBill(bill);
}
return(mapper.Map <IEnumerable <BillOfExchangeDto> >(ownedBills));
IEnumerable <BillOfExchange> GetBillsWithoutEndorsements(List <BillOfExchange> bills)
{
if (!bills.Any() || bills.FirstOrDefault() == null)
{
return(new List <BillOfExchange>());
}
IReadOnlyList <IEnumerable <Endorsement> > endorsementsByBillIds =
endorsementRepository.GetByBillIds(bills.Select(x => x.Id).ToList());
bills.RemoveAll(x => endorsementsByBillIds.SelectMany(y => y).Any(y => y.BillId == x.Id));
return(bills);
}
IEnumerable <BillOfExchange> GetOwnedBills(int billOwnerId)
{
IReadOnlyList <IEnumerable <Endorsement> > endorsementsByBeneficiaryIds =
endorsementRepository.GetByNewBeneficiaryIds(new List <int>()
{
billOwnerId
});
if (!endorsementsByBeneficiaryIds.Any() || endorsementsByBeneficiaryIds.FirstOrDefault() == null)
{
return(new List <BillOfExchange>());
}
IReadOnlyList <IEnumerable <Endorsement> > endorsementsByBillIds =
endorsementRepository.GetByBillIds(endorsementsByBeneficiaryIds.SelectMany(x => x)
.Select(x => x.BillId)
.Distinct()
.ToList());
List <int> billIds = (from endorsements in endorsementsByBillIds
select endorsements.LastOrDefault()
into endorsement
where endorsement != null && endorsement.NewBeneficiaryId == billOwnerId
select endorsement.BillId).ToList();
return(billOfExchangeRepository.GetByIds(billIds));
}
}