public override bool Equals(object other)
{
if (!(other is CreditCardDetails))
{
return(false);
}
CreditCardDetails card = (CreditCardDetails)other;
return(card.Month == this.Month &&
card.Year == this.Year &&
card.CardNumber == this.CardNumber &&
card.CardVerificationValue == this.CardVerificationValue);
}
private CreditCardDetails GenerateRandomCard(string prefix, int length, BankAccountDetails bank)
{
string ccnumber = prefix;
while (ccnumber.Length < (length - 1))
{
double rnd = (random.NextDouble() * 1.0f - 0f);
ccnumber += Math.Floor(rnd * 10);
}
// reverse number and convert to int
var reversedCCnumberstring = ccnumber.ToCharArray().Reverse();
var reversedCCnumberList = reversedCCnumberstring.Select(c => Convert.ToInt32(c.ToString()));
// calculate sum //Luhn Algorithm
int sum = 0;
int pos = 0;
int[] reversedCCnumber = reversedCCnumberList.ToArray();
while (pos < length - 1)
{
int odd = reversedCCnumber[pos] * 2;
if (odd > 9)
{
odd -= 9;
}
sum += odd;
if (pos != (length - 2))
{
sum += reversedCCnumber[pos + 1];
}
pos += 2;
}
// calculate check digit
int checkdigit =
Convert.ToInt32((Math.Floor((decimal)sum / 10) + 1) * 10 - sum) % 10;
ccnumber += checkdigit;
var date = DateTime.Now.AddYears(6).AddMonths(6);
using (var db = new BankSystemContext())
{
var card = new CreditCardDetails
{
BankAccountId = bank.Id,
CardNumber = ccnumber,
CardVerificationValue = (random.Next(1000) + "").PadLeft(3),
Month = date.Month,
Year = date.Year
};
db.CreditCards.Add(card);
db.SaveChanges();
return(card);
}
}
