public SimulationSetupViewModel(SimulationSetup model)
{
ResetToDefaultsCommand = new DelegateCommand(DoResetToDefaults);
if (model != null)
{
Start = model.Start;
End = model.End;
UseSnowball = model.UseSnowball;
}
else
{
DoResetToDefaults();
}
}
public SimulationState(Profile profile, SimulationSetup setup)
{
IsSnowball = setup.UseSnowball;
Accounts = profile.Accounts.Select(a => new SimulationBankAccount(a)).ToDictionary(a => a.Id);
Bills = profile.Bills.Select(b => new SimulationBill(setup.Start, b)).ToDictionary(b => b.Id);
Debts = profile.Debts.Select(d => new SimulationDebtAccount(setup.Start, d)).ToDictionary(d => d.Id);
Paychecks = profile.Paychecks.Select(p => new SimulationPaycheck(setup.Start, p)).ToDictionary(p => p.Id);
Transactions = profile.Transactions.Select(t => new SimulationTransaction(setup.Start, t)).ToDictionary(t => t.Id);
Events = profile.Events.All().ToLookup(e => e.Date);
SnowballPool = new Queue <SimulationDebtAccount>(Debts.Values
.Select((d, i) => (debt: d, order: GetDebtOrder(d, profile.Snowball, i)))
.OrderBy(t => t.order)
.Select(t => t.debt));
SnowballTarget = SnowballPool.SafeDequeue();
SnowballAmount = profile.Snowball.InitialAmount;
Results = new Dictionary <IAccount, List <SimulationResultItem> >();
AddToSnowball(setup.Start, 0);
}
public static async Task <Dictionary <IAccount, List <SimulationResultItem> > > Run(SimulationSetup setup, Profile profile)
{
var cloned = await Task.Run(() => profile.Clone());
return(await Task.Run(() => RunInternal(setup, cloned)));
}
private static Dictionary <IAccount, List <SimulationResultItem> > RunInternal(SimulationSetup setup, Profile profile)
{
var state = new SimulationState(profile, setup);
var start = setup.Start.Date;
var end = setup.End.Date;
for (DateTime date = start; date <= end; date = date.AddDays(1))
{
// before anything else, make sure we do the events
var events = state.Events[date];
foreach (var item in events)
{
ProcessEvent(state, date, item);
}
// if it is the end of the month, then interest hits
if (date.IsEndOfMonth())
{
foreach (var account in state.GetAccounts())
{
account.ProcessInterest(state, date);
}
}
// deposit any paychecks
var paychecks = state.Paychecks.Values.Where(p => p.Due.Current == date);
foreach (var paycheck in paychecks)
{
paycheck.Process(state, date);
paycheck.Due.Next();
}
// pay the bills
var bills = state.Bills.Values.Where(b => b.Due.Current == date);
foreach (var bill in bills)
{
bill.Process(state, date);
bill.Due.Next();
}
// pay the debts
var debts = state.Debts.Values.Where(d => d.Due.Current == date);
foreach (var debt in debts)
{
debt.Process(state, date);
debt.Due.Next();
}
// process the transactions
var transactions = state.Transactions.Values.Where(t => t.Due.Current == date);
foreach (var transaction in transactions)
{
transaction.Process(state, date);
transaction.Due.Next();
}
// if we get here and a debt has a zero balance, then it is paid off
foreach (var debt in state.Debts.Values)
{
if (debt.Balance <= 0)
{
state.PayOff(date, debt);
}
}
// if needed, update the snowball
state.UpdateSnowball(date);
// quit if we need to
if (!state.ShouldKeepGoing())
{
break;
}
}
return(state.Results);
}
