public bool AddTransaction(string sender, string recipient, decimal amount, string fromAccount, string toAccount, decimal ratePerDay, string message = null)
{
User from = FirstUser(u => u.Name.Equals(sender));
User to = FirstUser(u => u.Name.Equals(recipient));
Account fromAcc = from?.GetAccount(fromAccount);
Account toAcc = to.GetAccount(toAccount);
// Errant states
if (
to == null ||
(from == null && !to.IsAdministrator) ||
toAcc == null ||
(from != null && fromAcc == null) ||
(from != null && fromAcc.ComputeBalance(ratePerDay) < amount)
)
{
return(false);
}
Transaction tx = new Transaction(from == null ? "System" : from.Name, to.Name, amount, message, fromAccount, toAccount);
toAcc.History.Add(tx);
toAcc.UpdateBalance(amount, ratePerDay);
AddUser(to, false); // Let's not flush unnecessarily
//UpdateUser(to); // For debugging: Force a flush
if (from != null)
{
fromAcc.History.Add(tx);
fromAcc.UpdateBalance(-amount, ratePerDay);
AddUser(from, false);
}
return(true);
}