static void Main(string[] args)
{
var services = new ServiceCollection();
ConfigureServices(services);
using (ServiceProvider serviceProvider = services.BuildServiceProvider())
{
IBankSimulatorService _bankSimulator = serviceProvider.GetService <IBankSimulatorService>();
ILogServices _log = serviceProvider.GetService <ILogServices>();
Bank _newBank = _bankSimulator.CreateBank("Brix Test").Result;
_log.WriteLine("WELCOME TO " + _newBank.Name + " Bank", ConsoleColor.Blue);
_log.WriteLine("========================== ", ConsoleColor.Blue);
string MenuInput = string.Empty;
while (MenuInput != "E" && MenuInput != "e")
{
_log.WriteLine("Menu :O = open an account | R = add owner | D = Deposit | W = Withdrawal | E = Exit", ConsoleColor.Blue);
MenuInput = HandleuserInput(_bankSimulator, _log, _newBank).Result;
}
Task.WaitAll(tasks.ToArray());
}
}
public BankTransaction AddTransaction(BankTransaction _transaction)
{
//check that operation is done by the account owner.
AccountOwner _owner = _dbContext.AccountOwners.Where(O => O.AcoountID == _transaction.AccountID && O.OwnerID == _transaction.ExcutedByOwnerID).FirstOrDefault();
if (_owner == null)
{
throw new Exception("The account and user provided dont match. please make sure the user provided is the account owner.");
}
bool _lockWasTaken = false;
Monitor.Enter(Locker, ref _lockWasTaken);
try
{
//Thread.Sleep( 10000 ); //unmark to test multiple deposit\Withdrawal at the same time.
//check balance is enough for Withdrawal.
Account _Account = _dbContext.Accounts.Where(A => A.ID == _transaction.AccountID).FirstOrDefault();
if (_transaction.Amount < 0 && _Account.Balance + _transaction.Amount < 0)
{
throw new Exception("insufficient funds. your balance is $" + _Account.Balance.ToString());
}
//update balance and save transaction
_dbContext.Accounts.Attach(_Account);
_Account.Balance += _transaction.Amount;
_dbContext.BankTransactions.Add(_transaction);
_dbContext.SaveChanges();
_log.WriteLine(string.Format("Successfully {0} ${1} to account {2}. New balance is ${3}.", _transaction.Amount > 0? "Deposit": "Withdrawal",
_transaction.Amount.ToString(), _transaction.AccountID.ToString(), _Account.Balance.ToString()), ConsoleColor.Green);
return(_transaction);
}
catch (Exception ex)
{
_log.WriteLine("", ConsoleColor.Red);
_log.WriteLine(string.Format("Error {0} account {1}. Error details: {2}", _transaction.Amount > 0 ? "Deposit to " : "Withdrawal from ", _transaction.AccountID.ToString()
, ex.Message), ConsoleColor.Red);
return(null);
}
finally
{
if (_lockWasTaken)
{
Monitor.Exit(Locker);
}
}
}
private static async Task <string> HandleuserInput(IBankSimulatorService bankSimulator, ILogServices log, Bank bank)
{
string MenuInput = Console.ReadLine();
string CommanInput = string.Empty;
try
{
switch (MenuInput)
{
case "O": //open account
case "o":
Account _newAccount = await bankSimulator.CreateAccount(bank.ID);
log.WriteLine("Account number " + _newAccount.ID.ToString() + " created.", ConsoleColor.Green);
break;
case "R": // add owner to an account
case "r":
log.WriteLine("Please enter owner id (up to 9 digits), name, account id (123456789,lior gal,1). ", ConsoleColor.White);
CommanInput = Console.ReadLine();
AccountOwner _newAccountOwner = await bankSimulator.AddAccountOwner(CommanInput.Split( "," )[0].Trim(), CommanInput.Split( "," )[1].Trim(),
Convert.ToInt32(CommanInput.Split(",")[2].Trim()));
log.WriteLine(string.Format("User id {0} was added as account {1} owner.", _newAccountOwner.OwnerID, _newAccountOwner.AcoountID.ToString()), ConsoleColor.Green);
break;
case "D": // Deposit
case "d":
log.WriteLine("Please enter account id, owner id,amount (1,123456789,100.5). ", ConsoleColor.White);
CommanInput = Console.ReadLine();
Task <BankTransaction> depositTask = Task.Run(() => bankSimulator.Deposit(Convert.ToInt32(CommanInput.Split(",")[0].Trim()), CommanInput.Split(",")[1].Trim(),
Convert.ToDouble(CommanInput.Split(",")[2].Trim())));
tasks.Add(depositTask);
break;
case "W": // Withdrawal
case "w":
log.WriteLine("Please enter account id, owner id,amount (1,123456789,100.5). ", ConsoleColor.White);
CommanInput = Console.ReadLine();
Task <BankTransaction> withdrawalTask = Task.Run(() => bankSimulator.Withdrawal(Convert.ToInt32(CommanInput.Split(",")[0].Trim()), CommanInput.Split(",")[1].Trim(),
Convert.ToDouble(CommanInput.Split(",")[2].Trim())));
tasks.Add(withdrawalTask);
break;
case "E": //exit program
case "e":
log.WriteLine("Thanks for using " + bank.Name + " bank :-)", ConsoleColor.Blue);
break;
default:
log.WriteLine("invalid menu item.", ConsoleColor.Red);
break;
}
}
catch (Exception ex)
{
log.WriteLine("Error. " + ex.Message, ConsoleColor.Red);
}
return(MenuInput);
}