public static bool changeBalance(float change, char symbol)
{
balance = float.Parse(SQLoperator.CheckBalance(cardNumber));
float newBalance;
if (symbol == '+')
{
newBalance = (balance + change);
}
else
{
newBalance = (balance - change);
}
try
{
if (balance + change < 0)
{
Console.WriteLine("You can't withdraw amount that is more than your current balance: " + balance.ToString() + "$");
return(false);
}
else
{
SQLoperator.ChangeBalance(cardNumber, newBalance);
SQLoperator.CheckBalance(cardNumber);
return(true);
}
}
catch (Exception ex)
{
LogProvider.LogString(ex.ToString());
return(false);
}
}
public static void registerAccount()
{
Console.WriteLine("Welcome to our bank. You will need to write your name and desired pin-code.");
while (true)
{
Console.WriteLine("Your name:");
name = Console.ReadLine();
if (name.Length <= 50)
{
Console.WriteLine("Your PIN code:");
var tempPin = Console.ReadLine();
if ((tempPin.Length == 4) & (Regex.IsMatch(tempPin, @"^\d+$")))
{
pinCode = ConvertToSecureString(tempPin);
break;
}
}
}
Console.WriteLine("Press Enter to be issued a new credit card.");
Console.ReadKey();
cardNumber = IssueCard();
try
{
SQLoperator.AddEntry(name, cardNumber, pinCode);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
LogProvider.LogString(e.ToString());
}
}
public static void Greet()
{
int inputN;
Console.WriteLine("Welcome to Bank Accounting System! \nUse one of available commands by typing the number:");
while (true)
{
int n = 1;
foreach (string c in commands)
{
Console.WriteLine(n + ". " + c);
n++;
}
string input = Console.ReadLine();
if (Regex.IsMatch(input, @"^\d+$"))
{
Int32.TryParse(input, out inputN);
if ((inputN < commands.Length) & inputN > 0)
{
break;
}
}
Console.WriteLine("\nNo such command.");
}
string command = commands[inputN - 1].ToLower();
switch (command)
{
case "register":
{
registerAccount();
return;
}
case "log in":
{
logIn();
return;
}
default:
{
SQLoperator.CloseConnection();
LogProvider.EndLog();
Environment.Exit(0);
return;
}
}
}
static void Main(string[] args)
{
try
{
LogProvider.BeginLog();
SQLoperator.EstablishConnection();
BankAccount.Greet();
Console.ReadKey();
SQLoperator.CloseConnection();
LogProvider.EndLog();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Console.ReadLine();
}
}
public static void logIn()
{
int Tries = 0;
while (Tries < 4)
{
Console.WriteLine("\nCard Number: ");
string cardN = Console.ReadLine();
if (Regex.IsMatch(cardN, @"^\d+$"))
{
Console.WriteLine("\nPin Code: ");
string pin = Console.ReadLine();
if (Regex.IsMatch(pin, @"^\d+$") & pin.Length == 4)
{
cardNumber = ConvertToSecureString(cardN);
pinCode = ConvertToSecureString(pin);
if (SQLoperator.CheckCard(cardNumber, pinCode))
{
break;
}
else
{
Console.WriteLine("Wrong pin.");
}
}
}
Tries++;
Console.WriteLine("Autorisation failed.");
}
if (Tries > 3)
{
LogProvider.LogString("Failed login attempt. Connection terminated.");
SQLoperator.CloseConnection();
LogProvider.EndLog();
Environment.Exit(0);
}
AccountOperation();
}
static void AccountOperation()
{
string[] accountActions = new string[] { "Check balance", "Deposit money", "Withdraw money" };
Console.WriteLine("Select action:");
int inputN;
while (true)
{
int n = 1;
foreach (string c in accountActions)
{
Console.WriteLine(n + ". " + c);
n++;
}
string input = Console.ReadLine();
if (Regex.IsMatch(input, @"^\d+$"))
{
Int32.TryParse(input, out inputN);
if ((inputN <= commands.Length) & inputN > 0)
{
break;
}
}
Console.WriteLine("\nNo such command.");
}
string command = accountActions[inputN - 1].ToLower();
switch (command)
{
case "check balance":
{
balance = float.Parse(SQLoperator.CheckBalance(cardNumber));
Console.WriteLine("Balance: " + balance.ToString("0.00") + "$");
return;
}
case "deposit money":
{
Console.WriteLine("Amount you want to deposit: ");
while (true)
{
float amountF;
string amount = Console.ReadLine();
if (Regex.IsMatch(amount, @"^\d+$"))
{
float.TryParse(amount, out amountF);
changeBalance(amountF, '+');
break;
}
else
{
Console.WriteLine("Please, set the amount of money you want to depoit:");
}
}
return;
}
case "withdraw money":
{
SQLoperator.CheckBalance(cardNumber);
Console.WriteLine("Amount you want to withdraw: ");
while (true)
{
float amountF;
string amount = Console.ReadLine();
if (Regex.IsMatch(amount, @"^\d+$"))
{
float.TryParse(amount, out amountF);
if (changeBalance(amountF, '-'))
{
break;
}
}
else
{
Console.WriteLine("Please, set the amount of money you want to withdraw:");
}
}
return;
}
default:
{
SQLoperator.CloseConnection();
LogProvider.EndLog();
Environment.Exit(0);
return;
}
}
}
