private Amount TotalOutgo() => Amount.FromDecimal(Outgos.Sum(i => i.Amount));
protected override void When(object @event)
{
Income income;
Outgo outgo;
Snapshot snapshot;
Expenditure expenditure;
switch (@event)
{
case Events.DailyBudgetCreated e:
Id = new DailyBudgetId(e.Id);
Name = new BudgetName(e.Name);
snapshot = new Snapshot(Apply);
ApplyToEntity(snapshot, e);
Snapshot = snapshot;
break;
case Events.IncomeAddedToDailyBudget e:
income = new Income(Apply);
ApplyToEntity(income, e);
Incomes.Add(income);
e.TotalIncome = TotalIncome();
ApplyToEntity(Snapshot, e);
break;
case Events.IncomeAmountChanged e:
income = Incomes.FirstOrDefault(i => i.Id == e.IncomeId);
if (income == null)
{
throw new InvalidOperationException($"Income with id {e.IncomeId} not found");
}
ApplyToEntity(income, e);
e.TotalIncome = TotalIncome();
ApplyToEntity(Snapshot, e);
break;
case Events.IncomeDescriptionChanged e:
income = Incomes.FirstOrDefault(i => i.Id == e.IncomeId);
if (income == null)
{
throw new InvalidOperationException($"Income with id {e.IncomeId} not found");
}
ApplyToEntity(income, e);
break;
case Events.IncomeRemoved e:
income = Incomes.FirstOrDefault(i => i.Id == e.IncomeId);
if (income == null)
{
throw new InvalidOperationException($"Income with id {e.IncomeId} not found");
}
Incomes.Remove(income);
e.TotalIncome = TotalIncome();
ApplyToEntity(Snapshot, e);
break;
case Events.OutgoAddedToDailyBudget e:
outgo = new Outgo(Apply);
ApplyToEntity(outgo, e);
Outgos.Add(outgo);
e.TotalOutgo = TotalOutgo();
ApplyToEntity(Snapshot, e);
break;
case Events.OutgoAmountChanged e:
outgo = Outgos.FirstOrDefault(i => i.Id == e.OutgoId);
if (outgo == null)
{
throw new InvalidOperationException($"Outgo with id {e.OutgoId} not found");
}
ApplyToEntity(outgo, e);
e.TotalOutgo = TotalOutgo();
ApplyToEntity(Snapshot, e);
break;
case Events.OutgoDescriptionChanged e:
outgo = Outgos.FirstOrDefault(i => i.Id == e.OutgoId);
if (outgo == null)
{
throw new InvalidOperationException($"Outgo with id {e.OutgoId} not found");
}
ApplyToEntity(outgo, e);
break;
case Events.OutgoRemoved e:
outgo = Outgos.FirstOrDefault(o => o.Id == e.OutgoId);
if (outgo == null)
{
throw new InvalidOperationException($"Outgo with id {e.OutgoId} not found");
}
Outgos.Remove(outgo);
e.TotalOutgo = TotalOutgo();
ApplyToEntity(Snapshot, e);
break;
case Events.ExpenditureAdded e:
expenditure = new Expenditure(Apply);
ApplyToEntity(expenditure, e);
Expenditures.Add(expenditure);
e.TotalExpenditure = TotalExpenditure();
ApplyToEntity(Snapshot, e);
break;
case Events.ExpenditureAmountChanged e:
expenditure = Expenditures.FirstOrDefault(exp => exp.Id == e.ExpenditureId);
if (expenditure == null)
{
throw new InvalidOperationException($"Expenditure with id {e.ExpenditureId} not found");
}
ApplyToEntity(expenditure, e);
e.TotalExpenditure = TotalExpenditure();
ApplyToEntity(Snapshot, e);
break;
case Events.PeriodAddedToDailyBudget e:
if (Period != null)
{
throw new InvalidOperationException($"Period has already been set. Update start or end");
}
Period = Period.Create(e.Start, e.End);
ApplyToEntity(Snapshot, e);
break;
case Events.PeriodStartChanged e:
Period = Period.Create(e.Start, Period.ToB);
ApplyToEntity(Snapshot, e);
break;
case Events.PeriodEndChanged e:
Period = Period.Create(Period.FromA, e.End);
ApplyToEntity(Snapshot, e);
break;
}
}
