/* CheckTransactionHistory()
* Fetches account transaction records for user to view
*
* Returns: Status string with results of attempted view
*/
static string CheckTransactionHistory(string user, string pass)
{
string[] history = { };
if (!DBAct.TransactionHistory(user, pass, ref history))
{
return("Error: Could not retrieve history");
}
return(ViewTransactions(user, history));
}
/* CheckBalance()
* Checks the account balance for the user.
*
* Returns: Status string with the user's balance, or an error
*/
static string CheckBalance(string user, string pass)
{
decimal balance = -999999999;
if (!DBAct.GetBalance(user, pass, ref balance))
{
return("Error: Could not retrieve balance.");
}
return("Your balance is $" + balance.ToString("0.00") + ".");
}
/*** User actions ***/
/* CreateAccount()
* Gets username, password, and password verification from user to create a
* new account.
*
* Returns: Status string with results of attempted account creation
*/
static string CreateAccount()
{
string pass, passVerify, username, status = "Creating new account.";
while (true)
{
ScreenRefresh(null, status);
Console.WriteLine("Please enter desired username (or type \"cancel\" to return):");
username = Console.ReadLine();
if (username == "")
{
status = "Error: Cannot create account with blank username.";
continue;
}
if (username.ToLower() == "cancel" || username.ToLower() == "\"cancel\"")
{
return("Account creation cancelled.");
}
if (DBAct.DoesUserExist(username))
{
status = "Error: Account name \"" + username + "\" taken.";
continue;
}
Console.WriteLine("Please enter password (will stay hidden):");
pass = GetPasswordInput();
Console.WriteLine("Please verify password:"******"New account \"" + username + "\" created.");
}
else
{
return("Error creating account.");
}
}
else
{
status = "Password mismatch. New account not created.";
}
}
}
/* Withdrawal()
* Gets amount from user, checks that money is available, confirms amount with
* user, and withdraws the specified amount from the account.
*
* Returns: Status string with results of the attempted withdrawal
*/
static string Withdrawal(string user, string pass)
{
string amountInput;
decimal amountNum, balance = 0;
DBAct.GetBalance(user, pass, ref balance);
ScreenRefresh(user, "Making withdrawal.");
Console.WriteLine("Please enter amount to withdraw (ex: 3500.00 or 3500), or \"Q\" to return.");
Console.WriteLine("Current balance: {0:0.00}", balance);
amountInput = Console.ReadLine();
if (amountInput.ToLower() == "q")
{
return("Withdrawal cancelled.");
}
if (!IsMoneyAmountFormatted(amountInput))
{
return("Error: Incorrectly formatted amount.");
}
amountNum = Convert.ToDecimal("-" + amountInput); //Withdrawals are negative when stored
if (balance + amountNum < 0)
{
return("Error: Insufficient funds.");
}
ScreenRefresh(user, "Confirming withdrawal."); // Don't show the negative to the user, it's confusing
Console.WriteLine("Confirm withdrawal amount of $" + (-amountNum).ToString("0.00") + "?");
if (!ConfirmYesNo())
{
return("Withdrawal cancelled.");
}
if (DBAct.AddTransaction(user, pass, amountNum))
{
return("$" + (-amountNum).ToString("0.00") + " withdrawn.");
}
else
{
return("Error: Withdrawal failed.");
}
}
/* Login()
* Gets username and password from user, then logs in (if authenticated)
*
* Returns: Status string with results of login attempt
*/
static string Login()
{
string user, pass;
ScreenRefresh(null, "Logging in. Please provide username and password.");
Console.WriteLine("Username:"******"Password:"******"Error: Could not authenticate credentials");
}
}
/* Deposit()
* Gets amount from user, confirms amount with user, and deposits the specified
* amount to the account.
*
* Returns: Status string with results of the attempted withdrawal
*/
static string Deposit(string user, string pass)
{
string amountInput;
decimal amountNum;
ScreenRefresh(user, "Making deposit.");
Console.WriteLine("Please enter amount to deposit (ex: 3500.00 or 3500), or \"Q\" to return.");
amountInput = Console.ReadLine();
if (amountInput.ToLower() == "q")
{
return("Deposit cancelled.");
}
if (!IsMoneyAmountFormatted(amountInput))
{
return("Error: Incorrectly formatted amount.");
}
amountNum = Convert.ToDecimal(amountInput);
ScreenRefresh(user, "Confirming deposit.");
Console.WriteLine("Confirm deposit amount of $" + (amountNum).ToString("0.00") + "?");
if (!ConfirmYesNo())
{
return("Deposit cancelled.");
}
if (DBAct.AddTransaction(user, pass, amountNum))
{
return("$" + amountNum.ToString("0.00") + " deposited.");
}
else
{
return("Error: Deposit failed.");
}
}