public Payment Pay(DateTime date , decimal amount)
{
var payment = new Payment();
payment.Days = ( date.Date - this.LastPaydate.Date).Days;
payment.PaidAmount = amount;
payment.PaidDate = date;
payment.InterestAmount = Math.Round( (Outstanding * PreviousOwner.IntersetRate * payment.Days) / 36500 , 2 ,MidpointRounding.AwayFromZero );
decimal tempInterestAmount = payment.InterestAmount;
if (payment.InterestAmount > amount)
{
payment.InterestAmount = amount;
}
if(amount - payment.InterestAmount < 0 )
{
payment.PaidPrincipalAmount = 0;
}
else
{
payment.PaidPrincipalAmount = (amount - payment.InterestAmount);
}
payment.Outstanding = this.Outstanding - payment.PaidPrincipalAmount;
this.LastPaydate = date;
this.Outstanding = payment.Outstanding;
if (payment.PaidPrincipalAmount == 0.0m)
{
this.Accrued = this.Accrued + ( tempInterestAmount - payment.PaidAmount);
}
this.Payments.Add(payment);
return payment;
}
public Payment Pay(DateTime date, decimal amount)
{
if (date < this.LastPayDate)
{
throw new ArgumentException("Paid date cannot before the last pay date", "date"); // nameof(date)
}
var payment = new Payment();
TimeSpan ts = date - LastPayDate;
int days = ts.Days;
decimal interestAmount = Math.Round(this.Outstanding * (decimal)PreviousOwner.InterestRate
* days / 36500,
2, MidpointRounding.AwayFromZero);
interestAmount += this.Accrued;
payment.Days = days;
payment.PaidAmount = amount;
payment.PaidDate = date;
if (interestAmount <= amount)
{
payment.InterestAmount = interestAmount;
this.Accrued = 0m;
}
else
{
payment.InterestAmount = amount;
this.Accrued = interestAmount - amount;
}
payment.PaidPrincipalAmount = amount - payment.InterestAmount;
payment.Outstanding = this.Outstanding - payment.PaidPrincipalAmount;
this.LastPayDate = date;
this.Outstanding = payment.Outstanding;
return payment;
}
public Payment Pay(DateTime date, decimal amount)
{
if (date < this.LastPayDate)
{
string s = @"Paid date can not before the last pay date.
Last Pay Date is " + this.LastPayDate.ToString("yyyy-MM-dd");
throw new ArgumentException(s, "date"); // nameof(date)
}
var pay = new Payment();
pay.Days = (date.Date - LastPayDate.Date).Days;
pay.PaidDate = date;
pay.PaidAmount = amount;
pay.InterestAmount = Math.Round((this.Outstanding * (decimal)PreviousOwner.InterestRate) * pay.Days / 36500,2, MidpointRounding.AwayFromZero);
if (this.Accrued != 0)
pay.InterestAmount += this.Accrued;
if (amount <= pay.InterestAmount)
{
this.Accrued = Math.Round(pay.InterestAmount - amount,2, MidpointRounding.AwayFromZero);
pay.InterestAmount = amount;
}
if (pay.InterestAmount >= amount)
pay.PaidPrincipalAmount = 0;
else
{
this.Accrued = 0;
pay.PaidPrincipalAmount = amount - pay.InterestAmount;
}
pay.Outstanding = this.Outstanding - pay.PaidPrincipalAmount;
this.Outstanding = pay.Outstanding;
this.LastPayDate = date;
return pay;
}
public Payment Pay(DateTime date, decimal amount)
{
var payment = new Payment();
TimeSpan ts = date - LastPayDate;
int days = ts.Days;
decimal interestAmount = Math.Round(this.Outstanding * (decimal)PreviousOwner.InterestRate
* days / 36500,
2, MidpointRounding.AwayFromZero);
interestAmount += this.Accrued;
payment.Days = days;
payment.PaidAmount = amount;
payment.PaidDate = date;
if (interestAmount <= amount)
{
payment.InterestAmount = interestAmount;
this.Accrued = 0m;
}
else
{
payment.InterestAmount = amount;
this.Accrued = interestAmount - amount;
}
payment.PaidPrincipalAmount = amount - payment.InterestAmount;
payment.Outstanding = this.Outstanding - payment.PaidPrincipalAmount;
this.LastPayDate = date;
this.Outstanding = payment.Outstanding;
this.Payments.Add(payment);
return payment;
//throw new NotImplementedException();
}
private void outputPayment(Payment p)
{
output.WriteLine("{0:s}\t{1} days\r\nPaid: {2:n2}\r\nPrincipal: {3:n2}\r\nInterest: {4:n2}\r\nOutstanding: {5:n2}",
p.PaidDate, p.Days,
p.PaidAmount, p.PaidPrincipalAmount, p.InterestAmount,
p.Outstanding);
}