public void SimulationDailyTransactions()
{
try
{
using (var context = new DailyTransactionSimulatorDbContext())
{
var transaction = CreateRandomTransaction();
var account = accounts.Where(a => a.AccountNo == transaction.AccountNo).FirstOrDefault();
var accountContext = new RandomAccountCreatorDbContext();
if (transaction.Type == TransactionType.Incoming)
{
account.Balance = account.Balance + transaction.Amount;
}
else if (transaction.Type == TransactionType.Outgoing)
{
var newBalance = account.Balance - transaction.Amount;
if (newBalance < 0)
{
transaction.Status = TransactionStatus.Failed;
transaction.Description = StatusDescription.InsufficientFund;
}
else
{
account.Balance = newBalance;
}
}
if (transaction.Status != TransactionStatus.Failed)
{
accountContext.Update(account);
if (accountContext.SaveChanges() == 1)
{
Console.WriteLine($"successfully updated account. new balance is {account.Balance}");
transaction.Status = TransactionStatus.Success;
transaction.Description = StatusDescription.Success;
}
else
{
transaction.Status = TransactionStatus.Failed;
transaction.Description = StatusDescription.SystemError;
Console.WriteLine("transaction failed to process");
}
}
context.Transactions.Update(transaction);
if (context.SaveChanges() == 1)
{
Console.WriteLine("successfully inserted transaction.");
}
}
}
catch (Exception ex)
{
Console.WriteLine("an error occured");
Console.WriteLine($"[Error Message] {ex.Message}");
}
}
private void LoadAccounts()
{
try
{
// get all accounts from the database
using (var accountContext = new RandomAccountCreatorDbContext())
{
accounts = accountContext.Accounts.ToList();
totalAccounts = accounts.Count();
Console.WriteLine($"Successfully loaded {accounts.Count} accounts....");
}
}
catch (Exception ex)
{
Console.WriteLine("an error occured while attempting to load accounts");
Console.WriteLine($"[Error Message] {ex.Message}");
}
}
