private CreditAccountStateDto CloseAccount(CreditAccountDto account, CreditAccountStateDto latestCreditAccountState)
{
var accountCurrency = account.Currency;
account.IsClosed = true;
var updateCreditAccountCommand = new UpdateModelCommand <CreditAccountDto>()
{
ModelDto = account
};
_creditAccountCommandRepository.Execute(updateCreditAccountCommand);
var zeroPrice = new PriceDto()
{
Currency = accountCurrency,
Value = 0m
};
var closingCreditAccountState = new CreditAccountStateDto()
{
CreditAccount = account,
FinesForOverdue = zeroPrice,
InterestCounted = zeroPrice,
MainDebtRemain = zeroPrice,
RemainDebt = zeroPrice,
Month = latestCreditAccountState.Month + 1,
TotalInterestSumNotPaid = zeroPrice
};
var newCreditAccountStateCommand = new CreateModelCommand <CreditAccountStateDto>()
{
ModelDto = closingCreditAccountState
};
_creditAccountStateCommandRepository.Execute(newCreditAccountStateCommand);
return(closingCreditAccountState);
}
private CreditAccountStateDto UpdateFinesAndGetAccountState(int creditAccountId, DateTime specifiedDate)
{
var query = new ModelQuery()
{
Id = creditAccountId
};
var account = _creditAccountQueryRepository.Handle(query);
var latestCreditAccountStateQuery = new ActualCreditAccountStateQuery()
{
Id = account.Id
};
var latestCreditAccountState = _creditAccountQueryRepository.Handle(latestCreditAccountStateQuery);
var creditAccountPaymentsQuery = new CreditPaymentsQuery()
{
CreditAccountId = account.Id
};
var latestCreditAccountStateDate = account.AgreementDate.AddMonths(latestCreditAccountState.Month);
var accountPayments = _creditAccountQueryRepository.Handle(creditAccountPaymentsQuery);
var paymentsForLatestPeriod = accountPayments.Where(p => latestCreditAccountStateDate < p.Timestamp);
var accountCurrency = account.Currency;
// S
var sumPaidForLatestPeriod = paymentsForLatestPeriod.Sum(p => p.PaymentSum.Value);
if (latestCreditAccountState.RemainDebt.Value <= sumPaidForLatestPeriod)
{
return(CloseAccount(account, latestCreditAccountState));
}
// Z
var totalDebtRemaining = latestCreditAccountState.RemainDebt.Value;
// A
var debtForMonth = GetDebtForMonth(latestCreditAccountState);
if (latestCreditAccountState.MainDebtRemain.Value > sumPaidForLatestPeriod)
{
var finesForOverdue = latestCreditAccountState.FinesForOverdue;
finesForOverdue.Value += account.CreditType.FineInterest *
latestCreditAccountState.MainDebtRemain.Value;
var updateFinesCommand = new UpdateModelCommand <PriceDto>()
{
ModelDto = finesForOverdue
};
_priceCommandRepository.Execute(updateFinesCommand);
var totalDebt = latestCreditAccountState.RemainDebt;
totalDebt.Value += finesForOverdue.Value;
var updateTotalDebtCommand = new UpdateModelCommand <PriceDto>()
{
ModelDto = totalDebt
};
_priceCommandRepository.Execute(updateTotalDebtCommand);
}
if (ShouldAccountUpdate(account, specifiedDate))
{
var previousFinesForOverdue = latestCreditAccountState.FinesForOverdue;
// B
var interestForMonth = (decimal)account.CreditType.InterestRate / 12 * totalDebtRemaining;
var totalInterestNotPaid = latestCreditAccountState.TotalInterestSumNotPaid.Value;
var newTotalDebtRemaining = totalDebtRemaining;
var newTotalInterestNotPaid = totalInterestNotPaid;
var mainDebtRemain = latestCreditAccountState.MainDebtRemain.Value;
if (sumPaidForLatestPeriod < debtForMonth + mainDebtRemain)
{
newTotalDebtRemaining -= sumPaidForLatestPeriod;
newTotalDebtRemaining += debtForMonth;
newTotalInterestNotPaid += interestForMonth;
mainDebtRemain = debtForMonth + mainDebtRemain - sumPaidForLatestPeriod;
}
else if (sumPaidForLatestPeriod <
debtForMonth + mainDebtRemain + totalInterestNotPaid + interestForMonth)
{
newTotalDebtRemaining -= debtForMonth + mainDebtRemain;
newTotalInterestNotPaid += interestForMonth -
(sumPaidForLatestPeriod - debtForMonth - mainDebtRemain);
mainDebtRemain = 0m;
}
else
{
newTotalInterestNotPaid = 0m;
newTotalDebtRemaining -= sumPaidForLatestPeriod - interestForMonth - totalInterestNotPaid;
mainDebtRemain = 0m;
}
var newCreditAccountState = new CreditAccountStateDto()
{
CreditAccount = account,
Month = latestCreditAccountState.Month + 1,
FinesForOverdue = new PriceDto()
{
Currency = accountCurrency,
Value = previousFinesForOverdue.Value
},
InterestCounted = new PriceDto()
{
Currency = accountCurrency,
Value = interestForMonth
},
RemainDebt = new PriceDto()
{
Currency = accountCurrency,
Value = Math.Max(newTotalDebtRemaining + previousFinesForOverdue.Value, 0m)
},
TotalInterestSumNotPaid = new PriceDto()
{
Currency = accountCurrency,
Value = newTotalInterestNotPaid
},
MainDebtRemain = new PriceDto()
{
Currency = accountCurrency,
Value = mainDebtRemain
}
};
return(newCreditAccountState);
}
return(null);
}
private static decimal GetDebtForMonth(CreditAccountStateDto accountState)
{
var totalDebtRemaining = accountState.RemainDebt.Value;
return(totalDebtRemaining / (accountState.CreditAccount.TotalMonthDuration - accountState.Month));
}
