/// <summary>
/// Gets an instance of the next transaction number
/// </summary>
/// <returns></returns>
public static NextTransactionNumber GetInstance()
{
BankOfBITContext db = new BankOfBITContext();
if (nextTransactionNumber == null)
{
nextTransactionNumber = db.NextTransactionNumbers.SingleOrDefault();
if (nextTransactionNumber == null)
{
nextTransactionNumber = new NextTransactionNumber();
nextTransactionNumber = db.NextTransactionNumbers.Add(nextTransactionNumber);
db.SaveChanges();
}
}
return(nextTransactionNumber);
}
/// <summary>
/// Checks if there is a record of the bronze state in the database,
/// if there is one, it returns it, if there is not, it creates one
/// </summary>
/// <returns>The bronze state found or created</returns>
public static BronzeState GetInstance()
{
BankOfBITContext db = new BankOfBITContext();
if (bronzeState == null)
{
bronzeState = db.BronzeStates.SingleOrDefault();
if (bronzeState == null)
{
bronzeState = new BronzeState();
bronzeState = db.BronzeStates.Add(bronzeState);
db.SaveChanges();
}
}
return(bronzeState);
}
/// <summary>
/// Gets an instance of the next savings account
/// </summary>
public static NextSavingsAccount GetInstance()
{
BankOfBITContext db = new BankOfBITContext();
if (nextSavingsAccount == null)
{
nextSavingsAccount = db.NextSavingsAccounts.SingleOrDefault();
if (nextSavingsAccount == null)
{
nextSavingsAccount = new NextSavingsAccount();
nextSavingsAccount = db.NextSavingsAccounts.Add(nextSavingsAccount);
db.SaveChanges();
}
}
return(nextSavingsAccount);
}
/// <summary>
/// Gets an instance of a gold state (singleton pattern)
/// </summary>
public static GoldState GetInstance()
{
BankOfBITContext db = new BankOfBITContext();
//Checks if gold state has a value
if (goldState == null)
{
goldState = db.GoldStates.SingleOrDefault();
if (goldState == null)
{
goldState = new GoldState();
goldState = db.GoldStates.Add(goldState);
db.SaveChanges();
}
}
return(goldState);
}
/// <summary>
/// Gets an instatce of silverstate object
/// </summary>
/// <returns></returns>
public static SilverState GetInstance()
{
BankOfBITContext db = new BankOfBITContext();
//Checks the database for a silverstate
if (silverState == null)
{
silverState = db.SilverStates.SingleOrDefault();
if (silverState == null)
{
silverState = new SilverState();
silverState = db.SilverStates.Add(silverState);
db.SaveChanges();
}
}
return(silverState);
}
/// <summary>
/// Changes the state of the account based on the balance
/// </summary>
public void ChangeState()
{
//Creating a new instance of the database
BankOfBITContext db = new BankOfBITContext();
//Loops through the number of the available bank account types
for (int i = 0; i < NUMBER_OF_ACCOUNT_STATES; i++)
{
//Sets the state id to the account sate id
int currentStateId = this.AccountStateId;
//Sets the account current state to the one that is stored in the database
AccountState currentState = db.AccountStates.Where(x => x.AccountStateId == currentStateId).SingleOrDefault();
//Changing the current state
currentState.StateChangeCheck(this);
//Saving the entries to the database
db.SaveChanges();
}
}